Vehicle light fixture
The vehicle lighting device addresses cord movement issues by using L-shaped or J-shaped hooks and protrusions to securely fasten cords away from their natural path, preventing damage and ensuring device functionality.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- KOITO MFG CO LTD
- Filing Date
- 2025-10-22
- Publication Date
- 2026-05-07
AI Technical Summary
Existing vehicle lighting devices fail to effectively restrict the movement of cords within the lamp chamber, leading to potential damage and functional impairment due to vibration and scratching, particularly when using clamps that are on the shortest path of the cord or require complex fixing members.
A vehicle lighting device with a housing and a translucent resin cover featuring L-shaped or J-shaped hooks integrally formed on the rear wall, positioned away from the cord's shortest path, and protruding portions to secure the cord, along with breathable sheets to cover breathing holes, ensuring the cord is securely fastened without undercuts.
The solution effectively restricts cord movement in multiple directions, preventing damage and maintaining device functionality by integrating hooks and protrusions that securely fasten the cord away from its natural path, reducing vibration-induced wear.
Smart Images

Figure JP2025037126_07052026_PF_FP_ABST
Abstract
Description
Vehicle lighting device
[0001] The present invention relates to a vehicle lighting device that suppresses the movement of a cord disposed in a lamp chamber by a hook provided in the lamp chamber.
[0002] In the lamp chamber of a vehicle lighting device, a cord that connects devices such as a light source unit and a sensor and transmits signals and power is disposed. Since the cord also vibrates due to the vibration when the vehicle is running and may be damaged by getting scratched, it is desirable to treat the cord so that it does not move. For example, in Patent Document 1, a clamp is integrally provided at the opening of the lamp body to prevent the cord extending in the vertical direction from swaying left and right. Thus, the movement of the cord is suppressed without using a fixing member.
[0003] Japanese Utility Model Application Laid-Open No. 62-94149
[0004] However, the clamp of Patent Document 1 is on the shortest path of the cord, and the cord is likely to come out. In addition, a pair of opposing latching pieces are formed in a small opening for connecting an air vent pipe, and the cord is inserted through the gap between the pair of latching pieces and latched, so the cord is likely to come out. Also, a thick cord cannot be inserted through the gap, and a thin cord will come out of the gap. If the cord is movable, it is likely to be damaged and the function of the vehicle lighting device cannot be exhibited. Therefore, a mode for restricting the movement of the cord is required.
[0005] The present invention has been made in view of the above problems, and provides a vehicle lighting device that suppresses the movement of a cord disposed in a lamp chamber.
[0006] In order to solve the above problems, a vehicle lighting device according to a first aspect of the present disclosure includes a housing having an open front, a housing cover made of a translucent resin and attached to the front opening of the housing to form a lamp chamber, and a cord electrically connected to an electrical device disposed in the lamp chamber. An opening communicating with the outside and an L-shaped or J-shaped hook that protrudes toward the lamp chamber and latches the cord are integrally formed on the rear wall of the housing, and the hook is configured to be provided at a position separated from the shortest path of the cord.
[0007] Furthermore, in the vehicle lighting device of the second embodiment, the cord insertion point of the hook is configured to be located in the direction of the distance between the shortest path and the surrounding area, as in the first embodiment.
[0008] Furthermore, in the vehicle lighting device of the third embodiment, a protruding portion for securing the cord is formed near the hook, as in the first or second embodiment.
[0009] Furthermore, in the vehicle lighting device of the fourth embodiment, in any of the first to third embodiments, the protruding portion is a second hook arranged symmetrically with the hook.
[0010] Furthermore, in the fifth embodiment of the vehicle lighting device, in any of the first to fourth embodiments, a breathable sheet is attached to the outer surface of the housing in which the opening is provided.
[0011] As is clear from the above explanation, we can provide a lamp body that suppresses the movement of the cords arranged inside the lamp housing.
[0012] This shows the arrangement of a vehicle light fixture according to the first embodiment. This is a cross-sectional view along the line II-II in Figure 1. This is the configuration of the vehicle light fixture in part A of Figure 1. It mainly shows the lamp body and cord. Figure 3(A) shows a front view. Figure 3(B) shows a perspective view. This shows the mold for the lamp body. This is a cross-sectional view corresponding to the line II-II in Figure 1. This is an explanatory diagram explaining the effects of this configuration. Figure 5(A) shows a conventional configuration for comparison, showing a lamp body without a clamp and the cord wiring in the lamp body. Figure 5(B) shows the lamp body of this configuration and the cord wiring in the lamp body. This shows a modified example. Figure 6(A) is a cross-sectional view of the modified lamp body. This corresponds to Figure 2. Figure 6(B) is a cross-sectional view of the mold for the modified lamp body. This corresponds to Figure 4. This shows the lamp body and cord of a vehicle light fixture according to the second embodiment. Figure 7 corresponds to Figure 3(B). This is a front view showing the lamp body and cord of a vehicle light fixture according to the second embodiment. Figure 8 corresponds to Figure 3(A). This shows the arrangement of a vehicle light fixture according to the third embodiment. Figure 9 shows a part of the configuration of a vehicle lighting fixture. It mainly shows the lamp body and cord.
[0013] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The embodiments are illustrative and not limiting to the invention, and not all features or combinations thereof described in the embodiments are necessarily essential to the invention. Furthermore, in the following descriptions of embodiments and modifications, the same components will be denoted by the same reference numerals, and redundant descriptions will be omitted as appropriate.
[0014] (First Embodiment) Figure 1 shows the arrangement of a vehicle light fixture 1 according to a preferred first embodiment of the present invention. It is a rear view of a vehicle V1 equipped with the vehicle light fixture 1.
[0015] The vehicle lighting fixture 1 is a seamless type rear combination lamp, consisting of a tail lamp TALE that extends horizontally in the upper region, a pair of stop lamps STOP positioned in the left and right side regions below the tail lamp TALE, and a pair of turn signal lamps TURN positioned below the stop lamps, and is mounted on the rear of the vehicle V1 with the light emission direction facing rearward.
[0016] A seamless-type lamp is a lamp that, when two independent lamps are installed side by side, presents an appearance as a single lamp, with the seam between the two lamps being inconspicuous. The vehicle lighting fixture 1 consists of a pair of outside units (OSU) arranged on the outside in the vehicle width direction of the vehicle V1, and an inside unit (ISU) arranged in the rear trunk (RT) on the inside in the vehicle width direction. The outside unit (OSU) is equipped with a tail lamp (TALE), a stop lamp (STOP), and a turn signal lamp (TURN). The inside unit (ISU) is equipped only with a tail lamp (TALE).
[0017] The taillight TALE is positioned in both the outside unit OSU and the inside unit ISU. By positioning the outside unit OSU and the inside unit ISU close together in the left-right direction, the taillight TALE is configured to appear as a single, continuous lamp without any seams.
[0018] The taillight TALE is formed in a long, straight line horizontally, and the vehicle lighting fixture 1 is configured to be long in the vehicle width direction by this taillight TALE, and is installed to occupy the entire length from the left end to the right end of the vehicle body.
[0019] Although the vehicle lamp 1 is mounted with its light emission direction facing the rear of the vehicle V1, in the following description of the vehicle lamp 1, the light emission direction of the vehicle lamp 1 will be described as facing forward. The configuration of this disclosure is not limited to the rear lamps and tail lamps of this embodiment, but can also be used as headlights such as high-beam lamps, low-beam lamps, and fog lamps, and as marker lights such as high-mounted stop lamps, daytime running lamps, clearance lamps, side turn signal lamps, and automatic driving indicator lamps. When the light emission direction of the lamp is facing forward, the lamp is mounted to match the vehicle, such as being rotated 180 degrees relative to the vehicle as is the case with rear lamps, so please note that the direction of the vehicle and the light emission direction of the lamp do not necessarily coincide.
[0020] Figure 2 is a cross-sectional view along the line II-II in Figure 1. As shown in Figure 2, the vehicle lamp 1 comprises a lamp body 2, which is a housing and is box-shaped with an open front, and a lamp cover 4, which is a housing cover and is made of translucent resin. The lamp cover 4 is welded to the front opening of the lamp body 2, forming a lamp chamber inside.
[0021] Inside the lamp chamber are the lamp unit LU and extension 5 for the taillights. The extension 5 is a concealing member that hides unnecessary parts. The mechanism and fixing parts of the lamp unit LU are shielded by the extension 5.
[0022] The lamp unit LU comprises a light guide 11 and a reflector 12. The light guide 11 is a rod-shaped optical member, and its longitudinal direction is aligned with the extension direction (horizontal direction) of the lamp body 2. The front side of the light guide 11 along its longitudinal direction is configured as an emission surface that emits light, and the rear side is configured as a reflective surface having multiple steps (not shown). Light incident on the light guide 11 travels through the light guide 11 while repeatedly undergoing total internal reflection, and light incident on the reflective surface (rear side) is reflected forward and emitted forward.
[0023] The reflector 12 is formed to be elongated in one direction and is approximately the same length as the light guide 11. Its longitudinal vertical cross-section is configured in a V-shape, and the light guide 11 is held in the central curved section. The inside of the reflector 12 is a reflective surface that reflects light and is configured to guide the light emitted from the light guide 11 forward. Light emitted upward or downward from the light guide 11 is reflected by the reflective surface on the inside of the reflector 12 and is projected forward as reflected light.
[0024] (Breathing Hole and Hook) The hook 25 formed on the vehicle lighting fixture 1 will be described in detail. Figure 3 shows part A of Figure 1. Figure 3(A) is a front view, and Figure 3(B) is a perspective view. Part A is the central part of the inside unit ISU of the tail lamp TALE, which is configured to be long in the horizontal direction, of the vehicle lighting fixture 1. Figure 3 mainly shows the lamp body 2 and cord C1, and the lamp cover 4, lamp unit LU, etc. are omitted.
[0025] The rear wall 21, which is a structural surface facing the front opening of the lamp body 2, has breathing holes 23 and 24 formed therein to connect the inside and outside of the lamp chamber and circulate air inside and outside the lamp chamber.
[0026] These breathing holes allow for the expansion and contraction of air inside the lamp chamber due to heat generated by the light source and changes in temperature, while also allowing moisture inside the lamp chamber to escape to the outside, preventing moisture from accumulating inside. This prevents fogging inside the lamp chamber caused by moisture adhering to the lens and other parts from the inside of the lamp chamber.
[0027] The breathing holes 23 and 24 are rectangular through-holes, arranged in pairs vertically on the rear wall 21. A filter 9 is attached to the outer surface of the rear wall 21 of the lamp body 2, covering the pair of breathing holes 23 and 24. The filter 9 is a breathable sheet. By blocking the breathing holes 23 and 24, the filter 9 blocks dust and sand while ensuring an air passage.
[0028] A hook 25 is formed in the lower breathing hole 24, which holds the cord C1 in place. The hook 25 is a cord clamp that restricts the movement of the cord C1, and the cord C1 is hooked onto the hook 25, restricting its movement.
[0029] Code C1 is a wire harness that electrically connects to electrical / electronic equipment such as the light source unit and control unit of the lamp unit located inside the lamp chamber, transmitting electrical signals and power to them. The lamp body 2 is formed to be long in the horizontal direction, and Code C1, which is connected to the various units of the tail lamp TALE, also extends horizontally long inside the lamp chamber. Furthermore, Code C1 is positioned near the rear wall 21 so as not to interfere with the lamp unit LU that emits light, and so as not to be visible and detract from the design of the lamp fixture.
[0030] The hook 25 is formed to protrude into the lamp chamber from the rear wall 21, and has an inverted L-shape in cross-section. It protrudes horizontally from the rear wall 21 toward the inside of the lamp chamber, then bends 90 degrees downward and extends, with the opening that serves as the cord insertion point also located at the bottom. The lower breathing hole 24 and the hook 25 are integrally formed, and the rear end of the hook 25 is connected to the upper edge of the lower breathing hole 24. Unlike a normal hook that hooks from above, the hook 25 of this embodiment has an insertion point at the bottom and is structured to extend downwards to hook onto something above it.
[0031] (Mold) Figure 4 shows the mold 80 for the lamp body 2. This is a cross-sectional view taken at the position corresponding to line II-II in Figure 1. The mold 80 has a movable mold 81 and a fixed mold 82. When the movable mold 81 and the fixed mold 82 are arranged facing each other and clamped together, a molding space (cavitation) S1 corresponding to the shape of the lamp body 2 is defined inside the mold 80. Molten resin is injected into the cavitation S1 and filled, and the lamp body 2 is molded by cooling and solidifying.
[0032] The hook 25 is configured such that its protruding portion overlaps the breathing hole 24 when viewed from the front of the lamp body 2. The demolding direction DR is set along the horizontal plane of the L-shape of the hook 25, and a boundary (parting line) is provided along the inner surface of the L-shape. The protrusion 81a of the movable mold 81 for forming the hook 25 is provided to protrude from the portion corresponding to the breathing hole 24. When the mold 80 is opened, the movable mold 81 including the protrusion 81a moves in the demolding direction DR and separates from the fixed mold 82 without any problems.
[0033] The hook 25 is formed using the breathing hole 24, which is an opening formed in the rear wall 21 of the lamp body 2. By integrally forming the hook 25 with the breathing hole 24, the hook 25 and the breathing hole 24 can be formed without providing an undercut in the mold 80 of the lamp body 2.
[0034] Conventionally, the movement of cords is restricted by using fixing members such as cable ties, but this has the problem of being time-consuming because the fixing member must be removed and wrapped around the cord when attaching it. With the configuration of this disclosure, the movement of cord C1 can be easily restricted simply by hooking the cord C1 onto the hook 25.
[0035] (Protruding parts for locking) As shown in Figure 3, the rear wall 21 has protrusions 28 and 29 that protrude toward the lamp interior. The protrusions 28 and 29 are for positioning the cord C1 in a predetermined location and serve as locking parts for the cord C1.
[0036] The protrusions 28 and 29 are provided in pairs in the left-right direction, flanking the hook 25. In the up-down direction, the protrusions 28 and 29 are formed at the same height as the hook 25, but at a higher position.
[0037] The protrusions 28 and 29 are elongated rectangular in shape in the horizontal direction, and the cord C1 is placed on their upper surfaces and wired. The hook 25 is formed below the pair of protrusions 28 and 29, and the cord C1 protrudes downward from between the protrusions 28 and 29 and is hooked onto the hook 25. The cord C1 is alternately locked in the vertical direction in the order of protrusion 28, hook 25, and protrusion 29, and is wired in a wave pattern. As a result, the movement of the cord C1 in the vertical direction is firmly restricted.
[0038] (Effects and Functions) The effects and functions of this configuration will be explained using Figure 5. Figure 5 is an explanatory diagram illustrating the effects and functions of this configuration. Other components are omitted as appropriate, as the explanation will mainly focus on the wiring of the cord. Figure 5(A) shows a comparative configuration and shows a lamp body 902 in which no hook is formed in the opening. Figure 5(B) shows the present configuration and shows a lamp body 2 in which the hook 25 is formed.
[0039] As shown in Figure 5(A), the rear wall 921 of the ramp body 902 has breathing holes 923 and 924, which are openings, but no hooks. Therefore, the cord C901 is arranged continuously on the upper surface of two protrusions 928 and 929 that are aligned in the left-right direction. The cord C901, which is placed on the ramp body 901, rests on the upper surface of the protrusions 929, and its movement in the front-rear and upward directions is not restricted. Therefore, when the vehicle on which the ramp body 902 is mounted moves, the cord C902 also vibrates, and there is a concern that it may be damaged or broken by rubbing or hitting its corners.
[0040] In contrast, as shown in Figure 5(B), in this configuration, a hook 25 is formed integrally with the breathing hole 23 on the rear wall 21 of the lamp body 2, below the pair of protrusions 29, 29. The hook 25 is formed facing downward at a position offset by a predetermined distance L1 below the shortest path VL1 of the code in the absence of the hook 25, i.e., the path of code C902 (shown by the dashed line in Figure 5(B) and corresponding to the dotted line in Figure 5(A)).
[0041] A hook 25 is provided at a position spaced downward (white arrow) from the shortest path VL1. When the cord C1 is actually hooked on the hook 25, tension is applied to the cord C1 in the upward direction (black arrow) where it was originally located. By being hooked on the hook 25, the vertical movement of the cord C1 is restricted. Since the cord insertion opening of the hook 25 is formed downward in the separation direction (white arrow) from the shortest path VL1, the movement of the cord C1 is firmly restricted.
[0042] In addition, in the front-rear direction, since the cord C1 is arranged sandwiched between the vertical surface of the L-shaped hook 25 and the rear surface wall 21 (see FIG. 2), the movement of the cord C1 in the front-rear direction is also restricted. The movement of the cord C1 is strongly restricted by the hook 25.
[0043] (Method of attaching the cord) The operator attaching the cord C1 first connects and fixes the male connector 3 provided at the right end of the cord C1 to the female connector 14 provided at the lower edge of the substrate 13. Hang the unfixed other end side of the cord C1 from above on the nearby protrusion 29, let the cord C1 crawl on the upper surface of the protrusion 29, then insert the cord C1 between the protrusions 28 and 29 and insert it from below into the hook 25 and hook it. Further, pull up the cord C1 and place it on the other protrusion 29, and finally fit a connector (not shown) provided at the left end. The cord C1 is hooked in order on the protrusion 29, the hook 25, and the protrusion 29 provided alternately in the vertical direction, and finally wired in a wave shape, and the movement in the vertical direction is firmly restricted.
[0044] Thus, when attaching the cord, it is preferable that by fixing the connector provided at one end, then hooking the free end side of the cord C1 in order while arranging it toward the other end, and finally fitting and fixing the connector provided at the other end, the movement can be restricted in all directions without difficulty. Also, it is preferable that the length of the cord C1 is adjusted at the design stage so that the cord C1 can be wired without difficulty.
[0045] (Modified Example) This configuration is not limited to the above aspect. A modified example is shown in FIG. 6. FIG. 6(A) is a cross-sectional view of a lamp body 2A in which a J-shaped hook 25A is formed. FIG. 6(A) corresponds to FIG. 2. FIG. 6(B) is a cross-sectional view of a mold 80A of the lamp body 2A. FIG. 6(B) corresponds to FIG. 4.
[0046] As shown in FIG. 6, on the rear wall 21A of the lamp body 2A, a horizontal J-shaped hook 25A that protrudes toward the lamp chamber is formed. The rear end portion of the hook 25A is connected to the upper edge portion of the breathing hole 24, protrudes into the lamp chamber from there, then bends downward by 90 degrees, and further bends backward by 90 degrees and extends slightly. The horizontal plane of the tip portion serves as a return, making it difficult for the cord C1 to come off the hook 25A.
[0047] As shown in FIG. 6(B), the mold 80A of the lamp body 2A includes a movable mold 81A and a fixed mold 82A. When the movable mold 81A and the fixed mold 82A are arranged facing each other and clamped, a molding space (cavitation) S1A corresponding to the shape of the lamp body 2A is defined inside the mold 80. Molten resin is injected into the cavitation S1A, filled, cooled, and solidified, thereby forming the lamp body 2A.
[0048] A mold release direction DR is set along the horizontal plane of the hook 25A. The horizontal plane of the base end portion of the hook 25A and the horizontal plane of the tip portion serving as a return are parallel, and the extending direction coincides with the mold release direction DR. A boundary (parting line) is provided corresponding to the J-shaped inner surface of the hook 25A, and the convex portion 81aA of the movable mold 81A for forming the hook 25A protrudes and is provided at a portion corresponding to the breathing hole 24A when the mold 80A opens. Therefore, when the mold opens, the movable mold 81A including the convex portion 81aA can move in the mold release direction DR without problems and separate from the fixed mold 82A. Even if the shape of the hook 25A is J-shaped, the lamp body 2A can be molded without creating an undercut in the mold 80A. Thus, the cross-sectional shape of the hook integrally formed at the opening is not limited to an L-shape (including an inverted L-shape), and may also be a J-shape (including an inverted J-shape).
[0049] Furthermore, the opening in the lamp body 2 into which the hook 25 is integrally formed is not limited to the breathing hole 24, but may also be a mounting hole for a part or a notch. As long as it is an opening that communicates with the outside and can form a hook without impairing its original function as an opening, the type of opening into which the hook is integrally formed is not limited.
[0050] Furthermore, in this embodiment, the hook 25 has an insertion point in a direction away from the optimal path VL1 (downward). An upward force is applied to the cord C1 hooked on the hook 25, but this is in the opposite direction to the downward insertion point, which is the direction in which the cord C1 would come off the hook 25. Therefore, the cord C1 is least likely to come off and is most securely fastened. Thus, it is preferable to provide the insertion point of the hook so that it coincides with the direction in which the hook moves away from the optimal path VL1. However, it is not limited to this, and the direction of the cord insertion point of the hook may be any direction other than the opposite direction of the separation, that intersects the optimal path VL1.
[0051] (Second Embodiment) Figure 8 shows a vehicle lighting fixture 201 according to the second embodiment. Figure 7 corresponds to Figure 3(B). Primarily, the lamp body 202 and code C2 of the vehicle lighting fixture 201 are shown, and other components are omitted as appropriate.
[0052] The vehicle light fixture 101 comprises a lamp body 102 with an open front and a lamp cover 104 (not shown). The lamp cover 104 is attached to the front opening of the lamp body 102, forming a light chamber inside. A cord C2 for electrically connecting the components of the lamp unit is located inside the light chamber.
[0053] The rear wall 121 of the lamp body 102 has breathing holes 123 and 124 formed therein, which serve as openings to communicate with the outside. Both breathing holes 123 and 124 are rectangular in shape and are arranged in pairs side by side in the left-right direction. A filter 9 (not shown) is attached to the outer surface of the rear wall 121, covering the breathing holes 123 and 124.
[0054] An upward-facing hook 125 for securing the cord C2 is integrally formed with the left breathing hole 123. Similarly, a downward-facing second hook 126 for securing the cord C2 is integrally formed with the right breathing hole 124.
[0055] The rear end of the hook 125 is connected to the lower edge of the breathing hole 123, and it extends horizontally from the rear wall 121 toward the lamp chamber, then bends upward at a 90-degree angle to form an L-shape. In contrast, the rear end of the second hook 126 is connected to the upper edge of the breathing hole 124, and it extends horizontally from the rear wall 121 toward the lamp chamber, then bends downward at a 90-degree angle to form an inverted L-shape.
[0056] Hook 125 and the second hook 126 are cord clamps, and the cord C2 is hooked onto hook 125 and the second hook 126, restricting its movement.
[0057] The hook 125 and the second hook 126 are similar in form to the hook 25 and are integrally formed in the breathing holes 123 and 124, which are openings in the rear wall 121, so that they can be molded without creating undercuts in the mold.
[0058] A male connector 103 is provided at the left end of the cord C2, and it is fitted and fixed to a female connector 114 provided at the lower end of the circuit board 113. The female connector 114 is located near the bottom surface of the lamp body 102, and the locking point of the cord C2 is near the floor surface. Therefore, the shortest path VL2 of the cord in the lamp body 102 (shown as a dotted line in Figure 8, the wiring of cord C2' that is not hooked to the hook 125 and the second hook 126) extends parallel to the bottom surface of the lamp body 102.
[0059] In this embodiment, a hook 125 is formed on the rear wall 21 of the lamp body 102 at a position offset upward by a predetermined distance L2 from the shortest path VL2 (the path of code C2'). The hook 125 is L-shaped, with the insertion opening facing upward.
[0060] When cord C2 is hooked onto hook 125, it is hooked in a roundabout way, moving upward away from the shortest path VL2, which is the path of cord C2', and tension is applied downward in the direction of the shortest path VL2, which is its original position. This restricts the vertical movement of cord C2. Furthermore, it is clamped between the vertical surface and the rear wall 121 of hook 125, restricting its movement in the front-to-back direction as well. Hook 125 restricts the movement of cord C2 in all directions.
[0061] In addition, in this embodiment, a second hook 126 is formed. The pair of hooks 125, which are formed in opposite directions, are hooked onto the second hook 126, further restricting the vertical movement of the cord C2.
[0062] The second hook 126 is a locking part that secures the cord C2 and functions the same as the protrusions 28 and 29. A hook of this configuration may be used as a locking part that secures the cord.
[0063] Furthermore, the restriction of cord movement by hooks is not limited to one direction; a single hook may be configured to restrict movement in two directions by offsetting it from the shortest path.
[0064] (Third Embodiment) Figure 9 is a rear view of the left rear of a vehicle V2 equipped with a vehicle light fixture 201 according to a preferred third embodiment of the present invention.
[0065] The vehicle lighting fixture 201 is a rear combination lamp consisting of a turn signal lamp TURN2, a stop lamp STOP2, and a reverse lamp BACK2, and is installed in pairs on the left and right rear ends of the vehicle V2.
[0066] Each lamp is roughly the same size and arranged in a roughly square shape. The upper area of the vehicle lighting fixture 201 is configured as the turn signal lamp TURN2, the central area as the stop lamp STOP2, and the lower area as the reverse lamp BACK2. Because the three lamps are arranged vertically, the vehicle lighting fixture 201 has a vertically elongated structure.
[0067] The vehicle lighting fixture 201 has a lamp body 202 as a housing with an open front, and a lamp cover 204 is attached to the front opening of the lamp body 202, thereby defining a lamp chamber inside. The lamp chamber houses the three lamp units and the cord C3 that connects to these devices.
[0068] Figure 10 shows a portion of the lamp body 202. The vertically elongated lamp body 202 has been cut out from the center in the vertical direction, corresponding to the outer shape of the vehicle light fixture 201. Other parts are omitted as appropriate, as the figure mainly shows the lamp body 202 and code C3.
[0069] The rear wall 221 of the lamp body 202 is provided with a pair of rectangular breathing holes 223 and 224 arranged side by side in the left-right direction, which are intended to connect the inside and outside of the lamp chamber and circulate air between the inside and outside of the lamp chamber.
[0070] A hook 225 is formed in the right-hand breathing hole 224, which holds the cord C3 in place. The hook 225 is a cord clamp that restricts the movement of the cord C3, which extends in the vertical direction. The cord C3 is caught on the hook 225, and its movement is restricted.
[0071] The hook 225 is integrally formed with the breathing hole 224 on the rear wall 221, and the rear end of the hook 225 is connected to the left edge of the breathing hole 224. When viewed from above, the hook 225 has an L-shape, protruding horizontally from the rear wall 221 toward the interior of the lamp, then bending 90 degrees to the right and extending, with the cord insertion point also on the right side.
[0072] Code C3 is arranged to extend vertically to correspond to the vertically elongated vehicle light fixture 201. On the rear wall 221, protrusions 228 and 229 are formed vertically, flanking the hook 225 and breathing holes 223 and 224, respectively, projecting toward the light interior. The protrusions 228 and 229 are for positioning code C3 in a predetermined location and are configured as vertically elongated rectangles, with code C3 routed along their left side.
[0073] The hook 225 is formed to the right of the left side of the protrusions 228 and 229. Using this, the cord C3 is hooked onto the hook 225 from the right and positioned along the left side of the protrusions 28 and 29. The cord C3 is alternately hooked onto the protrusions 228, hook 225, and protrusions 229 in the left-right direction and wired in a wave pattern. As a result, the movement of the cord C3 is firmly restricted.
[0074] In the lamp body 302, the code C3' arranged along the shortest path is shown by a dotted line in accordance with Figure 10. In this embodiment, the hook 225 is formed at a position spaced to the right of the shortest path VL3, with its insertion point facing to the right.
[0075] When the cord C3 is hooked onto the hook 225 located to the right of the shortest path VL3, tension is applied to the cord C3, causing it to move to the left and restricting its lateral movement. Furthermore, the cord C3 is sandwiched between the vertical plane and the rear wall 221 of the hook 225, restricting its forward and backward movement as well. By being hooked onto the hook 225, the movement of the cord C3 is firmly restricted.
[0076] Thus, since the structure of the hook that secures the cord is determined by the direction of cord extension, the offset direction of the hook, and the direction of the insertion point, it can be used not only to restrict the cord's movement in the vertical direction, but also to restrict movement in the horizontal direction as well as the forward and backward directions.
[0077] This international application claims priority based on Japanese Patent Application No. 2024-190712, filed on 30 October 2024, and the entire contents of said Japanese Patent Application No. 2024-190712 are incorporated herein by reference.
[0078] The above description of specific embodiments of the present invention is provided for illustrative purposes only. It is not intended to be exhaustive or to limit the invention to the forms described. Numerous variations and modifications are possible in light of the above description, as will be obvious to those skilled in the art. The above embodiments are examples of the present invention, and they can be combined based on the knowledge of those skilled in the art; such combinations are also within the scope of the present invention.
[0079] 1, 101, 201: Vehicle lighting fixture 2, 102, 202: Lamp body (housing) 4, 104, 204: Lamp cover (housing cover) 9: Filter (sheet) 21, 121, 221: Rear wall 23, 24, 123, 124, 223, 224: Breathing holes 25, 125, 225: Hooks 28, 29, 228, 229: Protrusions 126: Second hook C1, C2, C3: Cord L1, L2, L3: (Determined) distance VL1, VL2, VL3: Shortest path
Claims
1. A vehicle light fixture comprising: a housing with an open front; a housing cover made of translucent resin, attached to the front opening of the housing to form a light chamber; and a cord electrically connected to an electrical device placed inside the light chamber; wherein the rear wall of the housing integrally forms an opening communicating with the outside and an L-shaped or J-shaped hook projecting toward the light chamber for securing the cord; and the hook is positioned at a distance from the shortest path of the cord.
2. The vehicle light fixture according to claim 1, characterized in that the cord insertion port of the hook is provided in the direction of the distance between the shortest path and the line.
3. The vehicle light fixture according to claim 1 or 2, characterized in that a protrusion for securing the cord is formed near the hook.
4. The vehicle light fixture according to claim 3, characterized in that the protruding portion is a second hook arranged symmetrically with the hook.
5. The vehicle light fixture according to claim 1 or 2, characterized in that a breathable sheet is attached to the outer surface of the housing in which the opening is provided.
Citation Information
Patent Citations
Composite molded article
JP2012169181A
Vehicular lighting fixture
JP2023137901A
Operating and / or display unit for vehicles
US20040000616A1