JP5096967B2 - Car interior lighting case - Google Patents

Description

  The present invention relates to a case for a vehicle interior lighting device in which a design bezel is provided around the front of a case body, and a plate-like lens for transmitting illumination light is fitted inside the bezel.

  As described in Patent Document 1, as a vehicle interior lighting device to be mounted on a vehicle interior ceiling, a design bezel is provided around the front surface of the case body (the lower surface exposed to the indoor side). A device using a case in which a plate-like lens for transmitting illumination light is fitted in an opening inside a bezel is known.

  FIG. 9 is an external perspective view of a vehicle interior lighting device case 100 used in this type of vehicle interior lighting device, FIG. 10 is a side view showing a state in which a lens is fitted in the case body, and FIG. 10 is a cross-sectional view of the main part in the state shown in FIG. 10, FIG. 12 is a cross-sectional view of the main part showing a state where the fitting is completed, and FIG. 13 is a plan view for explaining the conventional problems.

  As shown in FIG. 9, the case 100 includes a case main body 110, a plate-like lens 120, and a switch knob 130. A bezel 111 for design is provided around the front surface of the case main body 110, and a plate-like lens 120 for transmitting illumination light is fitted into an opening 112 inside the bezel 111.

  As shown in FIGS. 10 and 11, each of the pair of side walls 113, 113 facing each other behind the bezel 111 of the case body 110 has a locking hole (engagement hole) 115 and a lock hole (engagement hole). ) 116 is provided, and one end and the other end of the lens 120 corresponding to the pair of side walls 113 on the case body 110 side are inserted from the inside to the outside with respect to the locking hole 115 and the lock hole 116. A locking claw 122 and a locking claw 123 are provided to be engaged.

  In addition, an inclined guide surface 123a that guides to the position where the lock claw 123 engages with the lock hole 116 while bending the lock claw 123 inward by slidingly contacting the inner edge of the bezel 111 of the case main body 110 to the outer surface of the lock claw 123. Is provided.

When fitting the lens 120 into the case main body 110, first, as shown in FIGS. 10 and 11, the locking claw 122 is inserted into the locking hole 115 and temporarily fixed. Next, the lens 120 is rotated toward the case main body 110 with the portion where the locking claw 122 is inserted into the locking hole 115 and temporarily fixed as a fulcrum, and the lock claw 123 is engaged with the lock hole 116. Thereby, the mounting | wearing to the case main body 110 of the lens 120 can be completed.
JP-A-2005-75219

  By the way, in this type of case 100, in order to prevent rattling of the lens 120, the dimension H20 between the side edges of the lens 120 is set between the inner edges of the opening 112 of the case body 110 as shown in FIG. The lens 120 is formed to be slightly larger than the dimension H10 (that is, provided with a lapping allowance), and the lens 120 is fitted so as to be press-fitted inside the bezel 111, or ribs (not shown) are fitted on the fitting surfaces of the lens 120 and the bezel 111. ) And fitting the lens 120 so as to be press-fitted inside the bezel 111 while crushing the ribs.

  However, when such fitting is performed, a large insertion force is required when the lens 120 is fitted inside the bezel 111 of the case body 110. In addition, when a rib is provided on the fitting surface of the lens 120 and the bezel 111, a gap is formed between the lens and the bezel, and it is difficult to obtain the accuracy of the fitting portion, and as shown in FIG. There is also a risk of scratching a portion indicated by S in the drawing on the surface of the bezel 111.

  In consideration of the above circumstances, the present invention can improve the accuracy of the fitting portion of the lens and the bezel, and attach the lens to the case main body without rattling with a small insertion force without damaging the bezel. An object of the present invention is to provide a case for a vehicle interior lighting device that can improve assembly and improve quality.

According to the first aspect of the present invention, there is provided a case for a vehicle interior lighting device in which a design bezel is provided around the front of the case body, and a plate-like lens for transmitting illumination light is fitted inside the bezel. In the indoor lighting device case, an engagement hole is provided in each of the pair of side walls facing each other behind the bezel of the case body, and one end and the other corresponding to the pair of side walls on the case body side of the lens Each of the ends is provided with an engaging claw that is inserted and engaged with the engaging hole from the inside to the outside, and the engaging claw on one end side of the lens is more than the engaging claw on the other end side. It is configured as a fulcrum side latching claw that temporarily inserts and engages one end side of the lens to the case body by being first inserted into the engagement hole, and the engagement claw on the other end side is configured as the fulcrum side. With the locking claw engaged with the engagement hole, By rotating the lens toward the case main body with the engaging portion as a fulcrum, the lens engages with the engaging hole later using the bending of the engaging claw, thereby locking the lens to the case main body. is configured as a locking pawl which, before Kigakarigoana and the fulcrum side latching pawl, in one or both of the side surfaces facing each other in a direction perpendicular to the insertion direction of the fulcrum side locking pawl, the engagement hole ribs for eliminating the looseness between the fulcrum side locking pawl, characterized in that it is protruded with.

A second aspect of the present invention, a vehicle interior lighting device for a case according to claim 1, the distal end outer surface of the locking pawl, by sliding contact with the case body side, to deflect the locking pawl inwardly However, an inclined guide surface that guides to a position to be engaged with the engagement hole is provided.

A third aspect of the present invention is the vehicle interior lighting device case according to the first or second aspect , wherein the rib is formed on the opposing side surface on the engagement hole side.

A fourth aspect of the present invention, and characterized in that a vehicle interior lighting device for a case according to claim 1 or 2, wherein the rib is formed on a side surface of the opposite of the fulcrum side locking pawl side To do.

Invention of Claim 5 is the case for vehicle interior lighting devices of any one of Claims 1-4 , Comprising: The said rib is formed in the mountain shape sharpened toward the protrusion front-end | tip, as the projecting tip is crushed by the opposing sides each other fulcrum side locking claw and the engaging hole when inserting the fulcrum side latching claw with the engagement hole, the height of the ribs, is envisaged It is characterized by being set larger than the size of the play.

According to the first aspect of the present invention, since the backlash provided on the mutually opposing side surfaces of the engagement hole and the fulcrum side locking claw can eliminate the backlash between the fulcrum side locking claw and the engagement hole, It can be fitted into the case body without any difficulty. Also, the ribs for eliminating the backlash, because it is located on opposite sides of the engaging hole and the fulcrum side locking pawl perpendicular to the insertion direction of the fulcrum side locking pawl, the insertion direction of the fulcrum side locking pawl perpendicular Even when the bezel in the direction to be omitted is omitted, the lens can be positioned so as not to move in that direction. In addition, since the rib is located in a place where it is difficult to see from the design surface, there is no gap between the lens and bezel fitting part, unlike the case where there is a rib on the fitting surface of the lens and bezel. There is no need to worry about scratching the surface of the bezel with ribs when fitting. Further, when the lens is fitted inside the bezel, it can be fitted with a small insertion force. In addition, since there is no rib on the fitting surface of the lens, the accuracy of the fitting portion is easily obtained. Therefore, it is possible to improve the assemblability and the quality. In particular, since the rib is provided on the opposite side surface between the fulcrum side locking claw and the engagement hole to be inserted and engaged first, when the fulcrum side locking claw is inserted and engaged in the engagement hole, it is pressed against the rib. Although a force is required, when the lock claw is locked in the engagement hole, no extra pressure contact force is required. Therefore, it is not necessary to increase the insertion force when locking the lens.

According to the invention of claim 2 , since the inclined guide surface is provided on the outer surface of the front end of the lock claw, when the lock claw is locked in the engagement hole, the inclined guide surface comes into contact with the case body side first. The fulcrum side latching claw that has been temporarily fixed can be strongly pushed into the engagement hole. Therefore, the engagement between the fulcrum side locking claw and the engagement hole can be ensured.

According to the invention of claim 3 , since the rib is provided on the side surface of the engagement hole, there is no fear that the rib hits the bezel.

According to the invention of claim 4, it is possible because a rib on the side surface of the fulcrum side latching pawls provided to easily add ribs without increasing the cost.

According to the invention of claim 5, while crushing the protruding end of the rib, the fulcrum side latching pawl can be pressed into engagement hole, the backlash of the lens can be reliably eliminated.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of the case of the embodiment as seen from the case body side (portion embedded in the ceiling), FIG. 2 is an enlarged view of a portion II in FIG. 1, and FIG. 4 is a cross-sectional view of a main part showing a state in which a lens is fitted into the case body, and FIG. 5 is an enlarged view of the same part as in FIG. 2 showing a state in which the locking claw is engaged with the locking hole. FIG. 6 is a plan view of the case of the embodiment as viewed from the case body side, and FIG. 7 is an enlarged view of the VII portion of FIG.

  This case is a case used for an in-vehicle interior lighting device, and includes a case main body 10 and a plate-like lens 20 that are respectively molded with resin, and a design bezel 11 around the front of the case main body 10. Is provided, and a plate-like lens 20 for transmitting illumination light is fitted into a rectangular opening 12 inside the bezel 11. The appearance of the case viewed from the lens 20 side is the same as that shown in FIG.

  A locking hole (engagement hole) 15 and a lock hole (engagement hole) 16 are provided in each of the pair of side walls 13, 13 facing each other behind the bezel 11 of the case body 10. Further, a locking claw (engagement) which is inserted into the locking hole 15 from the inside to the outside and engaged with each of the one end and the other end corresponding to the pair of side walls 13 on the case body 10 side of the lens 20. And a lock claw (engagement claw) 23 that is engaged with the lock hole 16 from the inside to the outside.

  The locking claw 22 provided on one end side of the lens 20 is inserted into and engaged with the locking hole 15 before the locking claw 23 on the other end side, so that one end side of the lens 20 is connected to the case body 10. This is a portion that is temporarily fixed and becomes the fulcrum (axis) side when the lens 20 is fitted.

  The lock claw 23 provided on the other end side of the lens 20 is in a state where the engagement claw 22 on the fulcrum side is engaged with the engagement hole 15 and the lens 20 is placed on the case with the engagement portion as a fulcrum. By rotating to the main body 10 side, it is a part that later engages with the lock hole 16 by utilizing inward bending, thereby locking the lens 20 to the case main body 10.

  An inclined guide surface 23a is provided on the outer surface of the front end of the lock claw 23 so as to be slidably contacted with the bezel 11 of the case body 10 to guide the lock claw 23 to the position where it engages with the lock hole 16 while being bent inward. Yes.

  Further, as shown in FIGS. 2 and 3, when the locking claw 22 is inserted first, the locking hole 15 is engaged with the side surface of the locking hole 15, which is the pivotal fulcrum side when the lens 20 is fitted. A rib 17 for projecting backlash between the pawl 22 is provided. The side surface on which the rib 17 protrudes is a surface substantially parallel to the insertion direction of the locking claw 22 and faces the side surface of the locking claw 22 and the direction orthogonal to the insertion direction of the locking claw 22. Yes.

  In this case, a beam portion 14 having a rectangular cross section is provided on the outer surface of the side wall 13, a locking hole 15 is provided in a notch portion 18 of the beam portion 14, and the rib 17 projects from the end surface of the beam portion 14. ing. The rib 17 is formed in a mountain shape that is pointed toward the protruding tip, and the height of the rib 17 is determined by the opposite side surface of the locking claw 22 when the locking claw 22 is inserted into the locking hole 15. Is set to be larger than the assumed play size.

  Next, the operation will be described.

  In order to fit the lens 20 into the opening 12 inside the bezel 11 of the case body 10, first, the locking claw 22 is inserted into the locking hole 15 and temporarily fixed as shown in FIG. Next, the lens claw 22 is rotated to the case body 10 side with the portion where the locking claw 22 is inserted into the locking hole 15 and temporarily fixed as a fulcrum, and the lock claw 23 is moved to the lock hole as shown in FIG. 16 is engaged. Thereby, the mounting of the lens 20 to the case body 10 is completed.

  At this time, as shown in FIGS. 5 to 7, the locking claw 22 is press-fitted into the locking hole 15 while crushing the protruding tip of the rib 17. Therefore, the backlash between the locking claw 22 and the locking hole 15 can be eliminated, and the lens 20 can be fitted into the case body 10 without backlash.

  Further, since the ribs 17 for eliminating the backlash are located on the opposing side surfaces of the locking claw 22 and the locking hole 15 facing each other in the direction orthogonal to the insertion direction of the locking claw 22, Even when the bezel 11 in the direction orthogonal to the insertion direction is omitted, the lens 20 can be positioned so as not to move in that direction. In addition, since the ribs 17 are located in places that are difficult to see from the design surface, unlike the case where there is a rib on the fitting surface of the lens 20 and the bezel 11, there is a gap between the fitting portion of the lens 20 and the bezel 11. There is no fear that the surface of the bezel 11 will be damaged by the rib 17 when the lens 20 is fitted. In particular, since the rib 17 is provided on the side surface on the locking hole 15 side, there is no fear that the rib 17 hits the bezel 11.

  Further, since there is no rib on the fitting surface of the lens 20 and the bezel 11, when the lens 20 is fitted inside the bezel 11, it can be fitted with a small insertion force, and the accuracy of the fitted portion can be easily obtained. Therefore, it is possible to improve the assemblability and the quality.

  In this embodiment, since the rib 17 is provided on the side surface of the fulcrum side locking hole 15 to be inserted and engaged first, when the fulcrum side locking claw 22 is inserted and engaged with the locking hole 15. However, when the lock claw 23 is locked to the lock hole 16, no extra pressure contact force is required. Therefore, it is not necessary to increase the insertion force when the lens 20 is locked.

  Further, since the inclined guide surface 23 a is provided on the outer surface of the front end of the lock claw 23, when the lock claw 23 is locked to the lock hole 16, the inclined guide surface 23 a comes into contact with the bezel 11 of the case body 10, The locking claw 22 on the fulcrum side that is temporarily fixed to the locking hole 15 can be strongly pushed into the locking hole 15. Therefore, the engagement between the locking claw 22 on the fulcrum side and the locking hole 15 can be ensured.

  In the above embodiment, the rib 17 is provided on the side surface on the locking hole 15 side, but the rib 22a may be provided on the side surface on the locking claw 22 side as shown in FIG. Also in this case, the rib 22a is formed in a sharp mountain shape toward the protruding tip, and the protruding tip is crushed by the side surface of the locking hole 15 when the locking claw 22 is inserted into the locking hole 15. The height of the rib 22a is set to be larger than the assumed play size.

  Accordingly, the locking claw 22 can be press-fitted into the locking hole 15 while crushing the protruding tip of the rib 22a, and the play of the lens 20 can be reliably eliminated. Further, when the rib 22a is provided on the side surface of the locking claw 22 as described above, the rib 22a is not increased in cost as compared with the case where the rib 17 is provided on the side surface on the locking hole 15 side as in the embodiment. The advantage that it can be easily added and provided is obtained.

It is the perspective view seen from the case body side (portion embedded in the ceiling back) of the case of the embodiment of the present invention. It is an enlarged view of the II section of FIG. In the same embodiment, it is sectional drawing of the principal part which shows the state in the middle of fitting a lens in a case main body. It is sectional drawing of the principal part which shows the state which inserted the lens in the said case main body. FIG. 3 is an enlarged view of the same portion as FIG. 2 showing a state in which a locking claw is engaged with a locking hole in the same embodiment. It is the top view seen from the case body side of the case of the embodiment. It is an enlarged view of the VII part of FIG. It is a perspective view which shows the structure of the principal part of other embodiment of this invention. It is an external appearance perspective view of the case for the conventional vehicle interior lighting device. It is a side view which shows the state in the middle of having fitted the lens in the case main body of the case. It is sectional drawing of the principal part of the state of FIG. It is sectional drawing of the principal part which shows the state which fitting of the case main body with respect to the case was completed. It is a top view for demonstrating the conventional problem.

Explanation of symbols

10 Case body 11 Bezel 13 Side wall 15 Locking hole (engagement hole)
16 Lock hole (engagement hole)
17 Rib 20 Lens 22 fulcrum side locking claw (engaging claw)
22a rib 23 lock claw (engagement claw)
23a Inclined guide surface

Claims (5)

In a vehicle interior lighting device case in which a design bezel is provided around the front of the case body, and a plate-like lens for transmitting illumination light is fitted inside the bezel,
Engagement holes are provided in each of the pair of side walls facing each other behind the bezel of the case body, and the engagement holes are respectively provided at one end and the other end of the lens corresponding to the pair of side walls on the case body side. An engaging claw that is inserted and engaged from the inside to the outside with respect to the joint hole is provided, and the engaging claw on one end side of the lens is in the engaging hole before the engaging claw on the other end side. It is configured as a fulcrum side locking claw for temporarily fixing one end side of the lens to the case body by being inserted and engaged, and the engaging claw on the other end side engages the fulcrum side locking claw. By rotating the lens toward the case body side with the engaging portion as a fulcrum in the state of being engaged with the hole, the lens is engaged with the engaging hole later by utilizing the bending of the engaging claw. Is configured as a lock claw that locks the lens to the case body, Of Kigakarigoana and the fulcrum side latching pawl, in one or both of the side surfaces facing each other in a direction perpendicular to the insertion direction of the fulcrum side locking pawl, and the engagement hole and the fulcrum side locking pawl A case for a vehicle interior lighting device, wherein ribs for protruding backlash are provided. The vehicle interior lighting device case according to claim 1,
The tip outer surface of the locking pawl, by sliding contact with the case body side and the inclined guide surface to guide the position for engaging the engaging holes while bending the locking claw inwardly are al provided A vehicle interior lighting device case. The vehicle interior lighting device case according to claim 1 or 2,
A case for a vehicle interior lighting device , wherein the rib is formed on the opposing side surface on the engagement hole side . The vehicle interior lighting device case according to claim 1 or 2 ,
The case for a vehicle interior lighting device, wherein the rib is formed on the opposing side surface on the fulcrum side locking claw side. The vehicle interior lighting device case according to any one of claims 1 to 4 ,
The rib is formed in a mountain shape sharpened toward the protruding tip, and when the fulcrum side locking claw is inserted into the engagement hole, the side surfaces of the fulcrum side locking claw and the engagement hole facing each other. The vehicle interior lighting device case is characterized in that the height of the rib is set to be larger than an assumed backlash size so that the protruding tip is crushed by .

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