JP2011106652A - Member assembling structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow each protrusion to be forwardly/backwardly displaced by each space when each protrusion is brought into contact with a plate-like body of the other half-body so as to prevent each protrusion from becoming a hindrance to assembly during assembly of half-bodies and to prevent the occurrence of a backlash by means of each protrusion that elastically returns after the assembly. <P>SOLUTION: In a member assembling structure, a lid 10 is assembled by keeping each claw 26 provided on a first half body 20 hooked by each locking part 36 provided on a second half body 30. The first half body 20 includes: each protrusion 28 protrudingly formed at a part, facing the second half body 30, on a first outer wall 22 and an inner wall 24 so as to be brought into contact with a second plate-like body 31 of the second half body 30; and each space 29 opened in the walls 22, 24, provided with each protrusion 28, so as to allow each protrusion 28 to be forwardly/backwardly displaced with resect to the second plate-like body 31. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a structure for assembling a member for assembling two halves by hooking a claw provided on any half to a locking portion provided on the corresponding half.

  As a means for assembling the two members, there is a configuration (hereinafter referred to as a claw fitting structure) in which the two members are hooked on the other member by a claw provided on one member (see, for example, Patent Document 1). In the electronic device casing 50 disclosed in Patent Document 1, a lid 56 is fixed to a box-shaped main body 52 by a claw fitting structure (see FIG. 6). The box-shaped main body 52 is provided with a stepped portion 53 provided on the upper portion of the box-shaped main body 52, and provided on the upper portion of the box-shaped main body 52 through a stepped portion 53 and a slit, with a convex engagement at the tip. And a movable piece 54 having a stopper 55. On the other hand, the tray-shaped lid 56 is provided with a concave locking portion 58 corresponding to the movable piece 54 inside the side plate 57. And the electronic device housing | casing 50 fits the stepped part 53 of the box-shaped main body 52 inside the side plate 57 of the cover body 56, and also fits the convex latching | locking part 55 in the concave latching | locking part 58, Two members 52 and 56 are assembled.

  In the claw fitting structure, if the convex locking portion 55 and the concave locking portion 58 are formed so as to be closely aligned with each other, when the lid body 56 is assembled to the box-shaped main body 52, the convex locking portion 55 and the concave locking portion 58 are convex due to molding errors or deformation. The shaped locking portion 55 and the recessed locking portion 58 may not engage. Further, if the dimension of the side plate 57 of the lid 56 and the protruding dimension of the stepped portion 53 in the box-shaped main body 52 are set strictly, before the convex locking portion 55 fits into the concave locking portion 58 due to molding error or deformation. In addition, the stepped portion 53 may come into contact with the lid body 56, and the convex locking portion 55 may not engage with the concave locking portion 58. For this reason, in the claw fitting structure, a margin space S is set in advance between the convex locking portion 55 and the concave locking portion 58 or between the stepped portion 53 of the box-shaped main body 52 and the side plate 57 of the lid 56. (See FIG. 6), the engagement between the convex locking portion 55 and the concave locking portion 58 is ensured. However, the claw fitting structure is provided with the above-described margin space S, so that rattling occurs when the box-shaped main body 52 and the lid body 56 are assembled, and is particularly adopted in a place where the vehicle or the like vibrates. Is inconvenient.

JP-A-1-266798

  Therefore, in the claw fitting structure, a cushioning material (not shown) having elasticity such as a nonwoven fabric or rubber is applied to a portion of the back surface of the lid 56 that contacts the stepped portion 53 to fill the margin space S. Prevents rattling. However, the method of applying the cushioning material has a drawback that the cost is increased due to an increase in the cushioning material itself and the number of steps for applying the cushioning material. Further, as another means, a rib 60 is formed to protrude from the upper end of the stepped portion 53 in the box-shaped main body 52, and the rib 60 is compressed to engage the convex locking portion 55 and the concave locking portion 58. On the other hand, after assembling the lid body 56 to the box-shaped main body 52, there is a configuration in which the rib 60 strongly interferes with the back surface of the lid body 56 to prevent rattling. However, since another means relies on the contact between the lid 56 and the rib 60, the optimum state is found unless the conditions such as the position and height of the rib 60 are changed and adjusted many times. There is a problem that adjustment work is very troublesome. Even if the optimum rib 60 condition is found, the rib 60 is compressed when the lid 56 is assembled to the box-shaped main body 52, so that the rib 60 is crushed and does not have the originally planned contact relationship. Sometimes. Furthermore, in another means, since the rib 60 is strongly applied to the lid 56, the lid 56 may be deformed.

  That is, the present invention has been proposed in order to suitably solve these problems inherent in the assembly structure of members according to the prior art, and provides an assembly structure of a member with less backlash. Objective.

In order to overcome the above-mentioned problems and achieve the intended object, the assembly structure of the member according to claim 1 of the present application is as follows.
The latching part which provided the nail | claw part which provided the 1st half body and the 2nd half body which have a plate-shaped main body and the wall part standingly arranged in this plate-shaped main body in any half body in the corresponding half body In the assembly structure of the member to be hooked and assembled,
A projecting portion that protrudes from a portion facing the other half of the wall portion of at least one half, and abuts against the plate-like body of the other half;
It is provided in the wall part provided with the said convex part, The space part which accept | permits the advance / retreat displacement with respect to the plate-shaped main body of the other half body in this convex part is provided.
According to the first aspect of the present invention, the convex portion moves forward and backward when the convex portion comes into contact with the plate body of the other half body by the space portion. Later, rattling can be prevented by the elastically returning convex portion.

The gist of the invention according to claim 2 is that the width of the space portion is formed larger than the width of the convex portion.
According to the invention which concerns on Claim 2, when a convex part contact | abuts to the plate-shaped main body of the other half body by a space part, it can make it easy to advance / retreat.

In the invention according to claim 3, the convex portion is provided to extend from an edge of the wall portion that is separated from the plate body of the other half, and the space portion is the convex portion at the wall portion. And the other half plate-like main body.
According to the invention which concerns on Claim 3, a convex part can be easily provided in a wall part.

In the invention according to claim 4, the first half and the second half are formed in a tray shape in which an outer wall portion is erected on the outer peripheral edge of the plate-like main body, and inside the outer wall portion of the second half body. The outer wall portion of the first half is configured to fit,
In the first half, the claw portion is erected on the outer peripheral edge of the plate-shaped main body, and the convex portion is provided on the outer wall portion extending to the side where the claw portion is disposed.
The gist of the second half is that the locking portion is formed inside the outer wall portion corresponding to the claw portion.
According to the invention which concerns on Claim 4, a convex part is displaced simultaneously with engagement operation of a nail | claw part and a latching | locking part by providing a convex part in the outer wall part extended on the same edge | side as the side in which a nail | claw part is provided. Easy to do.

  According to the member assembly structure of the present invention, rattling can be prevented when the member is assembled.

1 is an exploded perspective view of a lid according to a preferred embodiment of the present invention. It is sectional drawing which fractures | ruptures and shows the lid of an Example along a longitudinal direction. It is sectional drawing which fractures | ruptures and shows the lid of an Example along a transversal direction. It is an enlarged view which shows the principal part of the lid of an Example, (a) shows the state before the assembly | attachment of a 1st half body and a 2nd half body, (b) shows a 1st half body and a 2nd half body. Shows the state after assembly. It is a perspective view which decomposes | disassembles and shows the lid of the example of a change. It is sectional drawing which shows a general nail | claw fitting structure.

  Next, the assembling structure of the members according to the present invention will be described below with reference to the accompanying drawings by giving a preferred embodiment.

  In the embodiment, a lid of a cup holder provided in a vehicle or the like will be described as an example. As shown in FIG. 1, the lid 10 covers a first half 20 having a shaft portion 12 pivotally supported by a main body (not shown) having a storage chamber, and covers the first half 20. It is comprised from the 2nd half body 30 which comprises the design surface at the time of lid closing. The first half 20 and the second half 30 are each formed by a method such as injection molding using a synthetic resin such as polypropylene or polyethylene as a raw material. The lid 10 is configured as a single plate member in which the first half 20 is fitted inside the second half 30.

  The first half 20 includes a rectangular first plate-like main body 21 and a first outer wall portion (wall portion) 22 erected on the outer peripheral edge of the first plate-like main body 21. Are formed in a tray shape (see FIG. 1). Further, the first half body 20 is located on the inner side of the outer wall portion 22, and has an inner wall portion (wall portion) 24 erected on the first plate-like main body 21, and a short side at the outer peripheral edge of the first plate-like main body 21. And claw portions 26 erected at each of the centers. The first half body 20 extends along the long side of the first plate-like main body 21 between the outer wall portions 22, 22 in which the plurality of inner wall portions 24 are arranged to face the short sides of the first plate-like main body 21. In the embodiment, the two inner wall portions 24, 24 are spaced apart from each other with the claw portion 26 interposed therebetween. In the first half 20, a slit 23 is provided between the claw portion 26 and the outer wall portion 22, and the claw portion 26 is inwardly and outwardly independent of the outer wall portion 22 (inward toward the inner region surrounded by the outer wall portion 22. And the opposite side). In this way, the claw portions 26 are arranged in a symmetrical positional relationship with the opposing edges of the first plate-like main body 21, and bend in a direction toward each other (inward) or a direction away from each other (outward). It has become. Further, the claw portion 26 is formed so that the tip portion protrudes outward in a bowl shape (see FIG. 2).

  The second half 30 includes a rectangular second plate-shaped main body 31 and a second outer wall portion (wall portion) 32 erected on the outer peripheral edge of the second plate-shaped main body 31. As shown in FIG. 1 to FIG. 3, the tray is formed to be slightly larger than the first half 20. The lid 10 is configured such that the first half 20 is aligned with an inner portion surrounded by the second outer wall portion 32 in the second half 30. The second half 30 is provided with a locking portion 36 that can be engaged with the claw portion 26 at the center inside the second outer wall portion 32 extending to the short side of the second plate-shaped main body 31, In the second half 30 of the example, they are arranged in a symmetrical positional relationship inside the opposing second outer wall portion 32 (see FIG. 2). The locking portion 36 is formed by projecting the distal end portion of the second outer wall portion 32 inwardly in a bowl shape.

  Thus, in the lid 10, the first half 20 and the second half 30 are provided so that the claw portion 26 and the locking portion 36 correspond to each other, and the claw portion 26 and the locking portion 36 have a claw fitting structure. It is composed. In the lid 10, when the claw portion 26 and the locking portion 36 are hooked, the tip of the second outer wall portion 32 of the second half 30 and the outer surface of the first plate-like main body 21 of the first half 20 are aligned. (See FIG. 2) The first outer wall portion 22, the inner wall portion 24, and the claw portion 26 of the first half body 20 are separated from the inner surface of the second plate-shaped main body 31, and An extra space S is provided between the claws (see FIG. 2 or FIG. 3).

  The first half 20 protrudes from a portion of the first outer wall 22 and the inner wall 24 facing the second plate-like body 31 of the second half 30, and is a convex portion that contacts the second plate-like body 31. 28 and a space 29 that is opened on the walls 22 and 24 provided with the projections 28 and allows the projections 28 to move forward and backward relative to the second plate-like body 31 (FIGS. 2 and 3). Or see FIG. 4 (a)). The convex portion 28 is integrally provided by extending the leading edge of the first outer wall portion 22 or the inner wall portion 24, and is formed in an arc shape in the embodiment.

  It is desirable that the space portion 29 is provided between the convex portion 28 and the first plate-like main body 21 in the first outer wall portion 22 or the inner wall portion 24 and is biased toward the convex portion 28 side. The space portion 29 is formed so as to penetrate the wall portions 22 and 24, and the width W <b> 2 is set larger than the width W <b> 1 of the convex portion 28. Here, the width refers to the dimension of the wall portions 22 and 24 in the extending direction. The space part 29 is disposed so as to overlap at least a range in which a perpendicular line is drawn from the convex part 28 toward the first plate-shaped main body 21, and the center in the width direction of the convex part 28 and the center in the width direction of the space part 29 are arranged. It is aligned. In other words, in the embodiment, the top portion of the convex portion 28 that contacts the second plate-shaped main body 31 is located in the center portion in the width W <b> 2 of the space portion 29. The convex portion 28 is set to interfere with the second plate-shaped main body 31 in the range of 0 to 0.5 mm, and the height of the space portion 29 is set to be larger than the interference range of the convex portion 28.

  According to the lid 10 of the embodiment, when the first half body 20 and the second half body 30 are assembled, the convex portion 28 in contact with the second plate-shaped main body 31 of the second half body 30 is formed by the second plate. Displacement in the direction of retreating from the second plate-like body 31 is allowed by the presence of the space 29 in the direction in which the convex portion 28 receives the force under contact with the plate-like body 31 (see FIG. 4B). . Thereby, the lid 10 can be pushed in until the claw portion 26 is engaged with the locking portion 36 using the margin space S between the first outer wall portion 22 or the inner wall portion 24 and the second plate-shaped main body 31. . That is, the lid 10 can absorb these errors in the margin space S even if molding errors or deformations occur in the portions such as the claw portion 26, the locking portion 36, the first outer wall portion 22 or the inner wall portion 24. Therefore, the claw part 26 can be reliably hooked on the locking part 36. Further, the convex portion 28 is elastically displaced so as to be retracted from the second plate-shaped main body 31 when the first half body 20 and the second half body 30 are assembled, and therefore, like the rib 60 described in the conventional example. It is also possible to avoid the protrusion 28 from being crushed without hindering the assembling work. Furthermore, by providing the convex portion 28 on the first outer wall portion 22 extending on the same side as the side where the claw portion 26 is provided, the convex portion 28 is displaced simultaneously with the engaging operation of the claw portion 26 and the locking portion 36. Easy to do.

  When the lid 10 is engaged with the claw portion 26 and the locking portion 36 to assemble the first half 20 and the second half 30 and release the pushed state, the convex portion 28 is elastically displaced. The second plate-shaped main body 31 is pushed back by the elastic return, and the claw portion 26 and the locking portion 36 are biased in the direction in which they are hooked to each other (see FIG. 2). As a result, the lid 10 is always urged in the direction away from each other by the convex portion 28 even if the margin space S is provided between the first half 20 and the second half 30, so that Can be avoided. Therefore, the lid 10 can be used in a place where there is vibration such as a vehicle. Since the convex portion 28 moves forward and backward according to the degree of interference with the second plate-shaped main body 31, the lid 10 is easy to design because adjustment of the dimensions and arrangement of the convex portion 28 is simple or unnecessary. , Rattling can be easily suppressed. Further, since the lid 10 can omit a cushioning material having elasticity such as a nonwoven fabric or rubber from between the first half 20 and the second half 30, there is no increase in the number of members, and the lid 10 protrudes during molding with a molding die. Since the part 28 and the space part 29 can be integrally formed, the cost can be reduced as a whole.

(Example of change)
(1) As shown in FIG. 5, the convex portion 42 is formed on the first outer wall portion 22 or the inner wall portion 24 of the first half body (one half body) 20 and the second half body (the other half body) 30. You may provide in the plate surface 40 spaced apart from the 2 plate-shaped main body 31, and extending along this 2nd plate-shaped main body 31. In this case, the space 44 is formed along the convex portion 42 on the plate surface 40. For example, the plate surface 40 is provided between the tips of the adjacent inner wall portions 24, 24 of the first half 20, and the center portion of the plate surface 40 is curved so that the second plate-shaped main body 31 side is convex. Thus, the convex portion 42 is formed. The plate surface 40 is provided with space portions 44 on both sides of the convex portion 42, and the width W2 of the space portion 44 is set to be larger than the width W1 between the connecting portions of the convex portion 42 to the plate surface 40. . In addition, the convex part 42 and the space part 44 of the modified example may have a form rotated by 90 ° from the form shown in FIG.

(2) In the example, the top of the arc-shaped convex portion is in line contact with the second plate-shaped main body over the thickness direction of the convex portion, but the convex portion has a spherical shape and the top portion is tapered. The configuration may be such that the convex portion is point-contacted with the second plate-shaped body by forming a weight. By suppressing the contact area between the convex portion and the second plate-shaped main body, it is possible to prevent the generation of scratching noise between the convex portion and the second plate-shaped main body.
(3) In the embodiment, the convex portions are provided on both the outer wall portion and the inner wall portion in the first half body. However, the first half body may be provided on either the outer wall portion or the inner wall portion.
(4) In the embodiment, the example in which the inner wall portion is provided inside the outer wall portion of the first half body is shown, but the inner wall portion may be omitted.
(5) Although the convex portion is provided in the first half in the embodiment, the convex portion may be provided only in the second half or in both the first half and the second half. In this case, an inner wall portion is provided on the second plate-like main body of the second half so as not to be buffered with the outer wall portion of the first half, and a convex portion that contacts the first plate-like main body of the first half on this inner wall portion. Is set.
(6) In the embodiment, only the claw portion is provided on one half and only the locking portion is provided on the other half, but both the claw portion and the locking portion are provided on one half. Correspondingly, you may provide both a latching | locking part and a nail | claw part in the other half body.

20 1st half body, 21 1st plate-shaped main body (plate-shaped main body), 22 1st outer wall part (wall part),
24 inner wall part (wall part), 26 claw part, 28 convex part, 29 space part, 30 second half,
31 Second plate body (plate body), 32 Second outer wall portion (wall portion), 36 Locking portion

Claims (4)

The latching part which provided the nail | claw part which provided the 1st half body and the 2nd half body which have a plate-shaped main body and the wall part standingly arranged in this plate-shaped main body in any half body in the corresponding half body In the assembly structure of the member to be hooked and assembled,
A projecting portion that protrudes from a portion facing the other half of the wall portion of at least one half, and abuts against the plate-like body of the other half;
A member assembling structure, comprising: a space portion that is provided in a wall portion provided with the convex portion and allows a forward / backward displacement of the other half of the convex portion with respect to the plate-like main body.   The member assembly structure according to claim 1, wherein a width of the space portion is formed larger than a width of the convex portion.   The convex portion is provided so as to extend from an edge of the wall portion that is separated from the plate body of the other half body, and the space portion has a plate shape of the convex portion and one half body in the wall portion. The assembly structure of the member of Claim 1 or 2 provided between a main body. The first half and the second half are formed in a tray shape in which an outer wall portion is erected on the outer peripheral edge of the plate-shaped main body, and the outer wall portion of the first half is formed inside the outer wall portion of the second half body. Configured to fit,
In the first half, the claw portion is erected on the outer peripheral edge of the plate-shaped main body, and the convex portion is provided on the outer wall portion extending to the side where the claw portion is disposed.
The member assembly structure according to any one of claims 1 to 3, wherein the second half is formed with the locking portion inside an outer wall portion corresponding to the claw portion.

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