A steering device is provided that is capable of facilitating an assembly operation, decreasing the number of parts, and decreasing manufacturing costs. A bottom plate of a stopper is tightened to an outer curved surface of an inner column between a head section and a bulged section of a rivet body. An outside diameter of the rivet body increases to eliminate a gap between a first through-hole and a second through-hole. The stopper remains stationary even when it touches a long hole at a telescopic stroke end and repeatedly receives an impact force. The durability of the stopper improves. There is no need for a nut for fixing the stopper to the inner column. The number of parts decreases to reduce manufacturing costs.

A device for preventing an inward shifting of a brake pedal during a collision. The device includes a mounting bracket. A pedal housing is combined with the mounting bracket such that the pedal housing is movable in a rearwards direction from the mounting bracket. A pedal arm is hinge-coupled at upper and middle parts thereof with the pedal housing and a push rod, respectively. A unit for preventing the inward shifting of the pedal arm has a separating plate which, as the pedal housing is moved rearwards, presses against a fixing pin to decouple the fixing pin from the pedal arm, enabling the pedal arm to turn outwards about a hinge point at the middle part.

The present invention relates to a tilt or tilt and telescopic steering apparatus for use in a vehicle. According to an exemplary embodiment of the present invention, a conventional structure, which should be provided with both of tilting fixing gears and telescopic fixing gears for locking after a tilt or tilt and telescopic operation, is improved in such a manner that the tilt or tilt and telescopic operation may be locked by a locking member and a linear protruding portion. As a result, an improper tooth-engagement phenomenon (tooth-on-tooth phenomenon) between gear teeth can be prevented, the tilt operation and the telescopic operation can be simultaneously locked, and required components can be reduced such that material costs can be reduced.

A motor drive assembly can prevent a two-way roller clutch of the current speed ratio and a two-way roller clutch of the next speed ratio from engaging simultaneously, and includes a first-speed friction plate formed with engaging protrusions on the first-speed side, and a shift ring formed with engaging recesses. While the shift ring is in a first-speed shift position SP1f, the engaging protrusions are adapted to be engaged in the engaging recesses, thereby preventing rotation of the shift ring relative to the first-speed friction plate. The shift ring is provided with projections on its inner periphery. The drive assembly further includes an annular protrusion formed with cutouts. When the projections are axially and circumferentially displaced from the respective cutouts, the projections are adapted to interfere with the annular protrusion, thereby preventing axial movement of the shift ring between the first-speed shift position SP1f and a second-speed shift position SP2f.

A tractor includes a prime mover, a driven implement selectively engaged with the prime mover, and a switch for selectively engaging and disengaging the driven implement with the prime mover. The switch has three positions including a disengaged position, a momentary position, and an engaged position located between the disengaged position and the momentary position. The prime mover can be started with the switch in the disengaged position. The prime mover can be started with the switch in the engaged position when the switch was previously moved to the momentary position before being moved to the engaged position, such that after operation of the prime mover is stopped, the prime mover can be restarted without changing the position of the switch.

A vibratory device comprises a rotor and an eccentric weight. The eccentric weight is mounted to the shaft and has a center of mass that is offset from the shaft axis. The vibratory device is configured such that the eccentric weight is in a first rotational orientation relative to the shaft and rotates with the shaft when the shaft rotates in a first direction about the shaft axis and such that the eccentric weight is in a second rotational orientation relative to the shaft when the shaft rotates in an opposite second direction about the shaft axis. The vibratory device is further configured such that the eccentric weight automatically transitions from the first rotational orientation to the second rotational orientation when the shaft is switched from rotating in the first direction to rotating in the second direction.

A hydraulic arrangement by which a plurality of shift rails of a transmission are actuated, including one double acting cylinder per shift rail by which the respective shift rail can be moved back and forth. A first hydraulic valve is connected upstream of the plurality of shift rails and has a first output and a second output, by which a first shift pressure and a second shift pressure for actuating the shift rails can be provided. A second hydraulic valve is connected between the first hydraulic valve and two of the shift rails, and by which it is selectively possible for the first output of the first hydraulic valve to be associated with one of the double acting cylinders of the two shift rails, and the second output of the first hydraulic valve to be associated with the other double acting cylinder of the two shift rails.

An automatic shift device for an automated transmission for a vehicle includes a rotation shaft, a clutch ring, a clutch hub, a sleeve, a dog clutch portion, a shaft moving apparatus, and a control portion. The control portion includes a push force reduction control portion performing a push force reduction control reducing a push force of the sleeve that the shaft moving apparatus applies on the clutch rear teeth in response to a back and forth movement of the sleeve after the sleeve reaches an end surface of the clutch rear tooth. The control portion includes a retry control portion performing a retry control that re-applies the push force of the sleeve in response to a predetermined retry condition after the push force reduction control is performed.

A vehicle driving apparatus where brake and acceleration functions are combined with a single stick includes: a lever moving to an acceleration position, an idle position, or a brake position as rotating forward and rearward about a shaft fixed to a vehicle body at a predetermined angle; a hand acceleration means opening an engine throttle to cause a vehicle to be accelerated; a hand brake means pushing a booster rod of a brake booster so that a brake operates to cause the vehicle to be stopped; a guide means installed on the left and right sides of the lever to prevent the lever from being shaken leftward and rightward; a hand brake locking means allowing the hand brake to be continuously applied; and a cruise control means allowing the lever to stay in the acceleration position even if the driver takes his hand off the lever.

A steering apparatus for a vehicle includes a main housing formed in a box form provided with a pair of side walls extending in an axial direction of the main housing with an opening between the pair of side walls, and provided with opening portions at opposing ends in the axial direction. The steering apparatus also includes a movable column member formed in a tubular form accommodated in the main housing through one of the opening portions at the opposing ends of the main housing in the axial direction. The steering apparatus further includes a resilient member, which is a plate spring, formed in one piece configured to fix to the main housing at the pair of fixing portions in a state where the pair of thrust portions, via thrust members, are thrusting the movable column member.

An adjusting device is equipped with a rod and a holder disposed movably in the direction of the length of the rod at an end of the rod, and adjusts the allowance length of the inner cable coupled to the rod and (or) holder. The adjusting device is provided with a lock-discriminating member protruding from the periphery of the holder and a cover covering the periphery of the holder including the lock-discriminating member and the lock. The lock piece does not protrude from the periphery of the holder in the lock state and protrudes to the same height with the lock-discriminating member in the unlock state.

A pedal apparatus for a vehicle may include a pad, a bracket which may be disposed below the pad, wherein the bracket may be coupled to the pad and a pedal arm at each opposite end of the pad and the pedal arm, respectively, a link section which may be disposed in the bracket, wherein the link section may be coupled to a lower portion of the pad and an intermediate portion of the bracket, respectively, such that the bracket may be movable in a longitudinal direction thereof, and a hinge-adjusting section which may be disposed above the link section such that an angle of the pad may be adjusted as the link section moves in the longitudinal direction thereof.

An accelerator pedal is supported by a support member. A biasing member biases the accelerator pedal to the full close position. A resistance application unit increases a frictional force to increase a rotational resistance applied to the accelerator pedal, as a rotation angle of the accelerator pedal increases. A slidable portion is mounted to the support member and slidable on the accelerator pedal. A first latch portion and a second latch portion define an interspace therebetween in a rotational direction. The support member includes a rotation restrictive projection fitted between the first latch portion and the second latch portion.

A bicycle handle assembly for a handlebar contains a body including a peripheral fringe and a side fringe connected together to define a receiving space. The receiving space includes a first side and a second side. The peripheral fringe includes a first engaging portion, a first connecting portion and a fixing portion connected with two ends of the first engaging portion. A movable retaining member is installed in the receiving space and includes a second engaging portion, a second connecting portion and a moving portion connected with two ends of the second engaging portion. The second connecting portion is used to connect with the first connecting portion of the body. A locking element is used to force the moving portion toward the fixing portion of the body, so that the external fence of the handlebar is retained tightly between the first engaging portion and the second engaging portion.

Centrifugal pendulum device including pendulum masses arranged on axial sides of a pendulum mass support rotatable about an axis of rotation to form a pendulum mass pair. To form the mass pair, the masses are fastened to each other by means of a fastener passing through a cutout in the mass support. The mass pair is pivotable relative to the mass support due to a rolling element arranged to roll in a recess of the mass support and of the mass. In a section axially covering the recess of the mass support, the rolling element has a first outer diameter. In a section axially covering the recess of the pendulum mass, the rolling element has a second outer diameter. The rolling element further comprises a section axially located between the first and second diameters and has a third diameter, which is smaller than or equal to the first outer diameter.

An electromechanical actuator for a movable flight control surface of an aircraft, the actuator comprising an electric motor having an outlet shaft with first and second directions of rotation, a movement transmission arranged to connect the outlet shaft of the motor to the movable flight control surface, and a control unit for controlling the motor. The transmission incorporates a pawl device arranged to oppose the transmission of movement in the first direction of rotation, and the control unit is connected to a pawl declutching member for declutching the pawl and enabling movement to be transmitted in the first direction of rotation.

An apparatus for locating a central axis of a spinal column and method of using the same is disclosed. The apparatus and method includes one or more members capable of spanning a center line which may then be identified by at least one additional member positioned therebetween. Furthermore, the device may contain or be capable of accommodating various additional tools for marking the location of the central axis of a spinal column.

An electronic device is provided with an inclination sensor for computing inclination, a control unit which conducts predetermined control based on a value computed by the inclination sensor, a case which has the inclination sensor and the control unit therein, and a suspension portion for suspending the case, and the control unit controls correction of the reference value of the inclination sensor based on a state where the case is suspended by the suspension portion and still.

A portable articulated arm coordinate measurement machine can include a base, a manually positionable articulated arm portion having opposed first and second ends, the arm portion including a plurality of connected arm segments, an electronic circuit that receives the position signals from the transducers, a first inclinometer coupled to the base, wherein the inclinometer is configured to produce a first electrical signal responsive to an angle of tilt of the base and an electrical system configured to record a first reading of the first inclinometer and a second reading of the first inclinometer, wherein the first reading is in response to at least one of a first force applied to the base and a third force applied to the mounting structure, wherein the second reading is in response to at least one of a second force applied to the base and a fourth force applied to the mounting structure.

A centerline marker holder used for engaging and sliding along a portion of two intersecting walls and sliding along an exterior or interior rounded or bull nose corner between the walls. The marker holder uses a pencil for drawing a centerline along a length of the corner. The marker holder includes a flat, first wall engaging member attached at an angle to a flat, second wall engaging member. Along a length of an intersection of the first and second wall engaging members is a centerline hole. The centerline hole is dimensioned to receive the pencil therethrough for marking the centerline. The marker holder also includes a plurality of offset holes from the centerline hole for drawing parallel offset lines at a selected distance from the centerline.

A multi-panel electronic device and method are disclosed. In a particular embodiment, a method includes receiving first acceleration data from a first sensor coupled to a first portion of an electronic device. The method further includes receiving second acceleration data from a second sensor coupled to a second portion of the electronic device, where a position of the first portion is movable with respect to a position of the second portion. The method further includes determining a configuration of the electronic device at least partially based on the first acceleration data and the second acceleration data.

A periodic permanent magnet (PPM) klystron has beam transport structures and RF cavity structures, each of which has permanent magnets placed substantially equidistant from a beam tunnel formed about the central axis, and which are also outside the extent of a cooling chamber. The RF cavity sections also have permanent magnets which are placed substantially equidistant from the beam tunnel, but which include an RF cavity coupling to the beam tunnel for enhancement of RF carried by an electron beam in the beam tunnel.

The six direction directing device includes a shaft, a rotation member, a driving source, and a guide member. The shaft extends in an X axis direction. The rotation member is rotatable around an inclined axis inclined at α deg with respect to the shaft. The rotation member has an xyz rectangular coordinate system. The rotation member further includes a spherical surface and an orbit portion formed around an x axis of the spherical surface. The guide member is fixed to an XYZ rectangular coordinate system. The orbit portion has such a shape that the y axis of the rotation member is sequentially directed in + and − directions on the U, V, and W axes that cross one another at intervals of 60 deg around the X axis when the rotation member is rotated in contact with the guide member by the rotation of the shaft.

A data comparison apparatus 1 includes: an image acquisition unit 42 that acquires data of a plurality of motions; an interval identification unit 45 that identifies a predetermined interval that is common in data of the plurality of motions; a time period comparison unit 47 that compares the plurality of motions in the identified predetermined interval; and a notification unit 50 that notifies information corresponding to a comparison result of the time period comparison unit 47.

A protractor for use with an external fixation frame is provided. The protractor may include a face having angle designations thereon and a set of opposed and extending flanges projecting from said face. The flanges may connect to a portion of an external fixation frame, such as a ring (or other component) of the frame. The face may also include a post member to which a rotatable dial is mounted. An elongate member may be pivotally connected to a portion of the post member and may include a clamp. The clamp may be used to connect to an alternate portion of an external fixation frame, such as a strut of the frame. Thus, the protractor may be connected to two points on an external fixation frame so as to measure the angle between such points. Related methods of using the aforementioned protractor are also disclosed.

A method of indicating an interference magnetic field at an electronic device includes: displaying a first arrow indicating a direction of magnetic north on a display of the electronic device, the direction of the first arrow corrected to remove interference caused by an interference magnetic field; and displaying a second arrow indicating a direction of a source of the interference magnetic field on a display of the electronic device.

An apparatus for securing and drawing upon a piece of paper, includes a board having a drawing surface sized to receive the paper. The drawing surface is bounded along its perimeter by a border region. An array of border pieces is fastened securely to the border region, each border piece being aligned relative to the others to establish a precisely sized drawing surface area to accommodate the paper. Each border piece has a length shorter than that of the corresponding edge of the drawing surface.

The invention relates to an autonomous system for determining items of information representative of the movement of an articulated chain (CA—1, CA—2, CA—3) comprising at least two solid elements (ES1—1, ES2—1, ES1—2, ES2—2, ES3—2, ES1—3, ES2—3, ES3—3, ES4—3) and at least one articulation (ART1—1, ART1—2, ART2—2, ART1—3, ART2—3, ART3—3) connecting said two elements. The system comprises at least two devices (DISP1—1, DISP2—1, DISP1—2, DISP2—2, DISP3—2, DISP1—3, DISP2—3, DISP3—3, DISP4—3) for measuring inter-device distances, mounted fixedly on two distinct elements of said articulated chain and suitable for transmitting the measurements made. Moreover, the system comprises means for determining at least one distance separating two measuring devices based on at least one measurement supplied by a measuring device, and calculation means (CALC), mounted on said articulated chain, suitable for calculating items of information representative of the movement of said articulated chain based on the measurements transmitted by said devices for measuring inter-device distances.

A test device for testing concentricity between first and second holes in parallel plates includes a positioning pole and a test pole. The positioning pole includes a head segment having a tapered positioning portion. The positioning pole axially defines a through hole. The test pole is telescopically received in the through hole of the positioning pole. The test pole includes a test head with a diameter slightly less than a diameter of the second hole. The positioning portion of the positioning pole extends into the first hole with the conic section of the positioning portion abutting against an inner wall bounding the first hole. The test head of the test pole faces the second plate and approaches and confirms the concentricity of the hole in the second plate by sliding the test pole relative to the positioning pole.

An electronic caliper generates power for measurement operations. The caliper comprises a scale member, a slider, a signal processing portion configured to measure a displacement between the scale member and slider, a power generating arrangement attached to the slider comprising a gear assembly configured to rotate in response to a force provided through a power generating handle to the gear assembly by a user moving the power generating handle relative to the gear assembly, and a power generator coupled to the gear assembly and configured to rotate in response to force provided by the rotating gear assembly and provide power to the signal processing portion. The power generating arrangement generates power as the user moves the power generating handle, and the power generating arrangement contributes a motion resistance force component of at most 20N as the user moves the power generating handle with a maximum manual acceleration.

An apparatus for measuring dimensions of a micro-scale object includes a movable stylus, a probe and at least one acoustic emissions sensor. The movable stylus is positionable to contact an object to be measured. The probe is rotatably coupled to the stylus and has a distal end that circumscribes a circle when rotated. The acoustic emissions sensor is operatively coupled to the probe. The sensor is operative to detect acoustic emissions generated from contact between the distal end of the probe and the object, thereby allowing dimensions of the object to be determined.

A micrometer includes: a frame; an anvil; a spindle; an encoder; a display; a strain gauge that detects a deformation of the frame; a storage that stores a change amount of the detection value (a displacement of the spindle detected by the encoder) per a unit deformation detected by the strain gauge, as a compensation factor; and a compensator that compensates the detection value based on a difference between a zeroset-time deformation that is detected by the strain gauge when a command for zeroset is given and a measurement-time deformation that is detected by the strain gauge in measurement, and based on the compensation factor stored in the storage.

A device and method for inspecting a width of thread roots of a tubular component for exploration or working of hydrocarbon wells, the device including two arms each including a first and a second end, the first ends being connected together by a deformable portion allowing an angular displacement between the second ends, the second ends each carrying a contact element and a mechanism determining the angular displacement.

A tool for measuring, marking, or cutting material, the tool formed of a rigid sheet of transparent material having a plurality of lines formed thereon, and a plurality of windows formed in the lines to enable viewing of material underlying the tool. The windows can be outlined in opaque lines, and alternating windows can be filled with contrasting transparent colors.

A physiological measurement device or wearable device simulator includes a frame and a plurality of surfaces distributed within the frame. For each surface, a surface actuator links the surface of the frame. At least one of: i) force or position imparted by the surface on a physiological feature of a subject by the surface actuator; and ii) the force imparted by the physiological feature of the subject on the surface, can be employed to modulate the positions of the surfaces relative to each other independently of the forces imparted by or on those surfaces, thereby measuring the physiological feature of the subject or simulating a wearable device interface.

A measurement gauge, comprising a pair of jaws biased in a closed position; a normalizing member surrounding one of the jaws when the pair of jaws is closed, the normalizing member biased in an extended position; a handle coupled to the pair of jaws and normalizing member such that movement from an extended handle position to an retracted handle position opens the pair of jaws and moves the normalizing member to an retracted position.

A rugged hand-held mobile computing device for a forester to collect and use dendrometric data from trees and tree stands is claimed. The device includes a processor which operates in connection with a memory, a user interface, a GPS receiver, a sound sensor capable of emitting an ultra-sonic pulse and a computer readable code embodied on the memory. The device communicates with a transponder by way of the ultra-sonic pulse emitted by the sound sensor. The transponder also emits an ultra-sonic pulse back to device. The device calculates the distance traveled based on the knowledge of the speed of the pulses. The memory, which also includes basic mapping software, uses the data to update a map in real time with the location of the trees and other information collected.

A mechanical encoder including an assembly, a flexible element, and a signal sensing module is disclosed. The assembly has a plurality of poking/stiring structure that provides poking/stirring function. The flexible element includes a first piezoelectric layer and a second piezoelectric layer. The first piezoelectric layer and the second piezoelectric layer are stacked on each other via an attach material. The flexible element is set up so that the poking/stiring structures stir/poke a first end of the flexible element, so as to output an electrical signal responsive to deformation of the flexible element. The signal sensing module receives the electrical signal to generate a position signal and a direction signal corresponding to the movement of the poking structures.

In a method for calibrating a star probe of an image measuring machine, the star probe includes one or more probe heads. Probe configuration information for the star probe is configured when there is no probe configuration file of the star probe stored in a storage device of the image measuring machine, and one of the probe heads to be calibrated is selected from the star probe. The method calibrates a radius value of the selected probe head, and calibrates the deviation between the center point of the selected probe head and the focus of the camera lens. The method further generates a star probe model of the star probe according to the probe configuration information and the probe calibration information, and displays the star probe model of the star probe on a display device of the image measuring machine.

A disposable saliva ejector that utilizes a single planar, double leaf shaped plate design that is embossed on their inner faces with a series of arced ribs and folded about its midpoint. A tab and slot arrangement about the center of the plates, joins the two plates. The distal tips are held together by a dovetail arrangement on raised pads at the distal tips of each plate. The distal and proximal tips are also held in operational contact by the suction forces passed through the device. The arced ribs form a series of channels about perimeter of the device. A trough runs along the linear axis of both of the plates to direct any fluid and debris that is sucked into the channels into a connected suction tube. Placement of the saliva ejector within the mouth lies along the interior of the patient's cheek, keeping the oral cavity clear of viewing obstructions. The discharge end connects to a discharge tube, wrapping around the oral commissure then hooking onto the patient's outer cheek. Once properly placed within the patient's mouth the dental assistant is relieved from providing suction during various procedures.

Lithium silicate glass ceramics and glasses are described which can advantageously be applied to zirconium oxide ceramics in particular by pressing-on in the viscous state and form a solid bond with these.

A planning and guiding method and excavation guiding device correctly implant an artificial tooth root at a predetermined site, perform various excavation processes on a cortical bone section and a spongy bone section by stage-based guidance, and guide eccentric excavation of the cortical bone section and concentric excavation of the spongy bone section according to a bone pattern, such that the artificial tooth root thus implanted is not only positioned at a planned ideal site but also manifests appropriate initial stability.

Root canal abutment devices and methods which facilitate the adjustment or removal of an oral appliance, e.g., a crown or bridge, from a reconfigurable abutment assembly are described. The adjustable abutment assembly may be secured within a pulp chamber of a pre-existing tooth. The abutment assembly has a projecting abutment portion with one or more shape memory alloy sleeves or plates or elements extending along the abutment. Each of the sleeves has a length with at least one curved or arcuate portion. Energy may be applied to the elements such that the arcuate portion flattens to allow for the oral appliance to be placed thereupon while removal of the energy allows the elements to reconfigure into its curved configuration thereby locking the oral appliance to the abutment. Removal of the oral appliance may be effected by reapplication of energy to the elements.

A multi-layer coating of alternating titanium nitride (TiN) and titanium carbo nitride (TiCN) layers is applied to at least part of a dental device for use in attaching crowns, overdentures, and the like in a patient's jaw, where the outermost layer is TiCN with a predetermined percentage of carbon to produce a pink color. The pink outermost layer is of sufficient thickness to conceal the color of the underlying layers, and is very hard and resistant to wear and damage in use. At the same time, the outermost TiCN layer is of a color consistent with the gingival anatomy, and is very hard and resistant to wear and damage in use.

The present invention is directed to a system of devices and a method for preparing a tooth to receive a restoration. The system includes a dental instrument for removal of portions of a tooth in the mouth of a patent and an overlay for guiding the dental instrument during the step of tooth removal. The overlay is designed for temporary installation into the mouth of the patient to guide the dental instrument to remove tooth material. The overlay has one or more sets of guide walls, with a predetermined configuration capable of contacting one or more guide projections of the dental instrument, and a receptacle capable of receiving and attaching to the dental instrument.

An archwire for use with a passive self-ligation orthodontic bracket is described and which includes a resilient main body which is received in the archwire slot, and which further has a predetermined width dimension, and a variable thickness dimension, and wherein the variable thickness dimension of the archwire can be varied so as to facilitate an adjustable application of a force to the passive self-ligation orthodontic bracket so as to achieve a clinician selectable and controllable second and third order movement of a patient's tooth.

An orthodontic bracket is described and which includes an archwire slot for receiving and cooperating with an archwire having a given shape, and wherein the bracket body has multiple forms each having an immovable anterior facing surface which lies in a given plane, and wherein the various forms of the bracket body can be rendered operable to express first, second or third order movement to a patient's tooth undergoing a clinician directed orthodontic treatment.

Casting jigs, methods, and kits that may be used in manufacture of anatomical healing caps. A casting jig may include a body having one or more wells within the body, each well being open at a proximal end thereof and having a negative shape corresponding to an anatomical healing cuff body of a given tooth position. Each respective anatomical healing cuff body negative shape includes an asymmetrical cross-section and an irregular surface so that an anatomical healing cuff body having said shape is configured to provide substantially custom filling of at least an emergence portion of a void where a natural tooth once emerged or should have emerged from the void (e.g., in the case of a congenitally missing tooth). The casting jig may further include a socket at a distal end of each well that is configured to receive therein a dental implant or dental implant analog.

An oral treatment device that includes a mouthpiece and an electromagnetic radiation source. In one aspect, the oral treatment device includes a mouthpiece comprising a curved wall having a concave inner surface and a bite platform extending from the concave inner surface of the curved wall to a distal end, the distal end of the bite platform extending continuously in a non-interrupted manner from a first end of the bite platform to a second end of the bite platform; an electromagnetic radiation source configured to emit electromagnetic radiation from the curved wall; and wherein the bite platform comprises a collapsible region such that the mouthpiece is alterable between: (1) a biased state in which the curved wall has a first curvature; and (2) a flexed state in which the curved wall has a second curvature that is different than the first curvature.

An oral treatment device that emits light onto surfaces of a user's teeth. In one aspect, the oral treatment device includes an intraoral mouthpiece. The mouthpiece comprises a lamp support structure comprising a lamp support surface and is formed of a first material. A flexible lamp is mounted to the lamp support surface so that a light emitting surface of the flexible lamp assumes a concave curvature, thereby forming a lamp assembly. A guard component is overmolded to the lamp assembly. The guard component is formed of an elastomeric material having a hardness that is less than a hardness of the first material. In one embodiment, the oral treatment device may be a teeth whitening device.