JPH0622845U - Assembling structure of assembly members - Google Patents

Abstract

(57) [Abstract] [Purpose] Increase the binding force against external force in all directions,
And the assembling property of the assembling member is improved. [Structure] An engaging hole 30 is formed in a plate-like arm portion 28 formed in the first assembling member 21 and tapering toward the tip, and the arm portion 28 is formed in the second assembling member 22. The arm 28 is inserted into an arm receiver 35 having a holding groove 36 for holding each side 28a along the insertion direction, and is engaged with an engagement hole 30 of the arm 28 and a claw 32 of the second assembly member 22. Let

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a joining structure for joining two assembling parts, and more particularly to a joining structure for an assembling member having a high joining force against an external force.

[0002]

[Prior art]

 A structure for connecting one member and the other portion by engaging the engaging hole formed in one member with the engaging hole formed in the other member is disclosed in, for example, Japanese Patent Application Laid-Open No. 62-58242. -178837, Japanese Utility Model Laid-Open No. 62-83136, Japanese Patent Publication No. 2-58549 and Japanese Utility Model Publication No. 4-2354.

FIG. 6 and FIG. 7 show an example of a conventional connecting structure of an assembling member, particularly an example applied to a blowout port of a vehicle air conditioner. As shown in FIG. 6, a register retainer 2 is coupled to an instrument cluster (hereinafter, simply referred to as a cluster) 1 which is a constituent part of a vehicle instrument panel. A register 3 including a vertical louver 4, a horizontal louver 5, and a barrel 6 is attached to the tip of the register retainer 2.

The register 3 is swingably held by the register retainer 2. Air from an air conditioner (not shown) is guided to the register retainer 2, and the direction of the air blown from the register 3 into the vehicle compartment is changed by adjusting the inclination of the balers 6 and the rotation amount of the vertical louvers 4. It is designed to be used.

The register retainer 2 and the cluster 1 are connected by the structure shown in FIG. The cluster 1 is formed with arms 7 and 8 extending horizontally and elastically deformable vertically. Square holes 9 and 10 are formed in the arm portions 7 and 8. A claw portion 11 protruding upward is formed on the upper surface side of the tip end portion of the register retainer 2, and a claw portion 12 protruding downward is formed on the lower surface side.

The openings in which the arms 7, 8 of the cluster 1 are formed are adapted to fit with the register retainer 2. When the cluster 1 is fitted with the register retainer 2, the arms 7 and 8 of the cluster 1 are elastically deformed by the contact with the claws 11 and 12, and the claws 11 are fitted in the square holes 9 and 10 of the cluster 1. , 12, the arm portions 7, 8 return to their original shape by self-elasticity, and the square holes 9, 10 and the claw portions 11, 12 are engaged with each other. This prevents the cluster 1 and the register retainer 2 from coming off in the fitting direction.

[0007]

[Problems to be solved by the device]

 However, in the case of the structure as shown in FIGS. 6 and 7, when a downward impact load is applied to the upper part of the cluster 1 as shown by an arrow C, the lower arm part 8 is lifted from the register retainer 2. However, there is a problem that the square hole 10 and the claw portion 12 are disengaged from each other. As described above, in the case of the joint structure shown in FIG. 6, the joint strength is small with respect to the load in the specific direction, and the reliability is low.

As a countermeasure against this, for example, a rib 15 for joining is formed on the register retainer 2 side and the arm portion 8 and the rib 15 are heat-welded to prevent the arm portion 8 from rising. However, in this case, since heat welding work is newly required, there arises a problem that workability deteriorates and assembling labor becomes large.

In view of the above problems, the present invention aims to provide a connecting structure of an assembling member which has a high connecting force against external force in all directions and which can improve the assembling property. To do.

[0010]

[Means for Solving the Problems]

 According to the present invention, there is provided a connecting structure for an assembling member, comprising: a first assembling member; a second assembling member to be combined with the first assembling member; and a first assembling member. A plate-like arm portion having a side that is formed on at least one side along the insertion direction and is tapered toward the tip, and an engagement hole formed in the arm portion of the first assembly member. And a holding groove provided on the second assembly member for holding each side of the arm portion of the first member and inserting the arm portion by abutting each side of the arm portion with the holding groove. And an arm receiver that regulates the movement in the direction, and the tip of the arm portion is elastically moved in the plate thickness direction by contact with the arm portion formed in the second assembly member in the process of inserting the arm portion into the arm receiver. Along with the deformation, the movement of the arm part in the insertion direction is restricted by the arm receiver. It enters the engagement hole of the first assembly member when it is state consists of those with a claw portion for the engagement hole and the engagement in the insertion direction opposite to the direction of the arm portion.

[0011]

[Action]

 In the assembling member connecting structure thus configured, the plate-like arm portion formed on the first assembling member is inserted into the arm receiver formed on the second assembling member. When the insertion of the arm portion into the arm receiver is completed, the engagement hole of the arm portion and the claw portion are engaged with each other, so that the movement of the arm portion in the direction opposite to the insertion direction is prevented.

Further, since at least one side of the arm portion is formed as an inclined surface, at the time when the insertion of the arm portion into the arm receiver is completed, the arm portion is inserted due to the effect of biting into the arm receiver. Directional movement is blocked.

Further, each side along the insertion direction of the arm portion is held in the holding groove of the arm receiver, so that the arm portion is prevented from being significantly lifted up by an external force, and the engagement hole and the claw portion caused by the arm portion lifting up are prevented. Is prevented from being disengaged.

As described above, since the movement of the arm portion in the insertion direction and the movement in the direction opposite to the insertion direction is prevented, and the significant lifting of the arm portion is prevented, the first assembling member and the second assembling member are prevented. The binding force of becomes stronger against external force in all directions. Further, since the arm receiver acts as a guide member when the arm part is inserted, it is not necessary to increase the positioning accuracy at the beginning of assembly, and the arm part is accurately positioned by the arm receiver when the insertion work of the arm part is completed. As a result, the assemblability between the first assembling member and the second assembling member is improved.

[0015]

【Example】

 Hereinafter, a preferred embodiment of a coupling structure of an assembling member according to the present invention will be described with reference to the drawings.

First Embodiment FIGS. 1 to 4 show a first embodiment of the present invention, particularly when it is applied to an air outlet of a vehicle air conditioner. In FIG. 1, reference numeral 21 denotes a cluster as a first assembly member. A register retainer 22 as a second assembly member is coupled to the cluster 21. A register 23 is attached to the tip of the register retainer 22.

The register 23 includes a barrel 24, a plurality of vertical louvers 25, and a horizontal louver 26. Each vertical louver 25 is rotatably supported by the barrel 24. Each lateral louver 26 is fixed to the barrel 24. The barrel 24 is swingably held by the register retainer 22. Air from an air conditioner (not shown) is guided to the register retainer 22. By adjusting the inclination of the barrel 24 and the turning amount of the vertical louver 25, the air blown out from the register 23 into the vehicle compartment is controlled. The direction can be changed.

The cluster 21 and the register retainer 22 are connected by the structure shown in FIGS. 2 and 3. The cluster 21 and the register retainer 22 are made of synthetic resin. The cluster 21 is formed with an opening 21a for accommodating the register 23. Plate-shaped arm portions 27 and 28 extending horizontally and elastically deformable upward and downward are formed on the upper and lower wall portions of the opening 21 a of the cluster 21, respectively. A square engagement hole 29 is formed in the upper arm portion 27. A square engagement hole 30 is formed in the lower arm portion 28.

A claw portion 31 protruding upward is formed on the upper surface side of the tip portion of the register retainer 22. One of the claw portions 31 is formed on an inclined surface, and the other is formed on a vertical surface capable of engaging with the engagement hole 29. A claw portion 32 that protrudes downward is formed on the lower surface side of the tip portion of the register retainer 22. One of the claw portions 32 is formed on the inclined surface 32a, and the other is formed on the vertical surface 32b that can be engaged with the engagement hole 30.

A pair of arm receivers 35 into which the arm portions 28 are inserted are formed on the lower surface side of the tip portion of the register retainer 22. The arm receiver 35 has an L-shaped cross section, and a holding groove 36 for holding the side 28a of the arm portion 28 is formed. The two sides 28a of the arm portion 28 are formed as inclined surfaces with respect to the axis A along the insertion direction. The inner side surface 35 a of the arm receiver 35 is parallel to the side 28 a of the arm portion 28. The pair of arm receivers 35 are arranged in a V shape, and the movement of the arm portions 28 in the inserting direction by a certain amount or more is regulated by the biting effect.

The positional relationship between the arm receiver 35 and the claw portion 32 is set as follows. In the process of inserting the arm portion 28 into the arm receiver 35, the tip of the arm portion 28 is elastically deformed by contact with the inclined surface 32a of the claw portion 32, so that the arm portion 28 is inserted. The claw portion 32 enters the engaging hole 30 when the movement in the direction is restricted by the contact with the arm receiver 35. In the present embodiment, in order to maintain this relationship, the distance from the end surface of the arm receiver 35 to the vertical surface 32b of the claw portion 32 is set to L ₁ to prevent the occurrence of significant play in the X direction at the completion of assembly. It has stopped.

Further, the clearance between the ceiling surface 35 b of the arm receiver 35 and the surface of the arm portion 28 at the time of completion of assembly is set to S. If the gap S is too small, the arm 28 cannot pass over the claw 32 when the arm 28 is inserted into the arm receiver 35. On the contrary, if the gap S is too large, the arm 28 is significantly lifted due to an impact load. Can't be stopped.

Next, the operation of the first embodiment will be described. When the cluster 21 and the register retainer 22 are assembled, the opening 21a of the cluster 21 is fitted to the tip of the register retainer 22. In this state, the arm portion 28 of the cluster 21 is inserted into the arm receiver 35 of the register retainer 22. When the amount of insertion of the arm portion 28 into the arm receiver 35 increases, the tip portion of the arm portion 28 comes into contact with the inclined surface 32a of the claw portion 32 of the register retainer 22, and the tip portion of the arm portion 28 elastically deforms downward. To do.

Further, when the insertion of the arm portion 28 is continued, the tip end portion of the arm portion 28 gets over the claw portion 32, the claw portion 32 enters the engaging hole 30 of the arm portion 28, and the claw portion 32 and The engagement with the engagement hole 30 is performed. This prevents movement of the arm portion 28 in the direction opposite to the insertion direction. When the claw portion 32 and the engaging hole 30 are engaged with each other, a biting effect is produced by the contact between the side 28a that is an inclined surface and the inner side surface 35a of the arm receiver 35, and the insertion direction of the arm portion 28 is generated. Is also prevented, so that the movement of the arm portion 28 in the X direction along the axis A is surely prevented.

In addition, due to the wedge effect of being bitten into each side 28a of the arm portion 28 and the inner side surface 35a of the arm receiver 35, there is no backlash in the arrow Y direction that is perpendicular to the inserting direction of the arm portion 28, and the arrow Y Movement in the direction is also blocked. When an impact load is applied to the upper part of the cluster 21, the arm part 28 located below is lifted in the Z direction from the register retainer 22 by the impact force, but each side 28a is held by the holding groove 36 of the arm receiver 35. As a result, the arm portion 28 is prevented from rising significantly.

In this way, the arm portion 28 is prevented from moving in any of the X direction, the Y direction, and the Z direction, and the coupling strength between the cluster 21 and the register retainer 22 is increased. Further, since the pair of arm receivers 35 are arranged in a V shape and the opening for inserting the arm portion 28 is wide, it is not necessary to perform the positioning at the initial stage of assembly with high accuracy. However, since the arm portion 28 is guided by the arm receiver 35 at the time of insertion, the assembling property is improved, and at the time of completion of insertion, the arm portion 28 is accurately positioned by the biting effect with the arm receiver 35.

Although the engaging hole 29 of the upper arm portion 27 is engaged with the claw portion 31, if the arm receiver 35 is provided here as well, the coupling strength of the arm portion 27 can be further enhanced. it can.

Second Embodiment FIG. 5 shows a second embodiment of the present invention. The second embodiment is different from the first embodiment only in the shapes of the arm portion and the arm receiver, and the other portions are the same as those in the first embodiment. Therefore, the same reference numerals are given to the corresponding portions. Therefore, the description of the corresponding parts will be omitted, and only different parts will be described.

In the first embodiment, the two sides 28a of the arm portion 28 are formed on the inclined surface, but in the present embodiment, only one side 28a is formed on the inclined surface with respect to the axis A along the insertion direction. The other side 28a is parallel to the axis A. Therefore, one of the arm receivers 35 is also arranged to be inclined with respect to the axis A, and the other arm receiver 35 is arranged parallel to the axis A.

In the second embodiment configured as described above, due to the relationship between the inclined side 28 a of the arm portion 28 and the inclined arm receiver 35, the same effect as that of the first embodiment is obtained. It becomes possible to obtain. Further, by configuring the pair of arm receivers 35 to be connected to each other, the strength of the arm receivers 35 can be increased without increasing the plate thickness.

Although each of the above-described embodiments has been applied to the air outlet of the vehicle air conditioner, the present invention is not limited to this, and may be applied to the connection of various assembling members. it can.

[0032]

[Effect of device]

 According to the present invention, the following effects can be obtained.

(1) Engagement holes are formed in a plate-like arm portion formed on the first assembly member and tapering toward the tip, and the arm portion is formed on the second assembly member. Since it is inserted into the arm receiver having the holding groove that holds each side along the insertion direction of the, and the engaging hole of the arm part is engaged with the claw part of the second assembly member, The arm portion does not easily come off with respect to an external force, and the coupling force between the first assembling member and the second assembling member can be increased.

(2) Since the arm receiver functions as a guide member at the time of inserting the arm portion, it is not necessary to improve the positioning accuracy at the initial stage of assembly, and when the insertion of the arm portion is completed, the inclined surface of the arm portion is not formed. It is possible to position the arm portion with high precision by the biting effect due to the contact between the edge and the holding groove of the arm receiver. Therefore, the assembling property can be improved as compared with the conventional structure.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a connecting structure of an assembling member according to a first embodiment of the present invention.

FIG. 2 is a bottom view of FIG.

3 is a cross-sectional view taken along the line EE of FIG.

FIG. 4 is a partially enlarged sectional view of FIG.

FIG. 5 is a bottom view of the assembly structure of the assembling member according to the second embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a coupling structure in a conventional assembly member.

FIG. 7 is a perspective view as seen from the bottom surface direction of FIG.

[Explanation of symbols]

21 1st assembly member 22 2nd assembly member 28 Arm part 30 Engagement hole 32 Claw part 35 Arm receiver 36 Holding groove L ₁ Distance from arm receiver to claw part S Gap between arm receiver and arm part

Claims (1)

[Scope of utility model registration request] 1. A first assembling member, a second assembling member coupled to the first assembling member, and at least one side formed in the first assembling member and extending along the insertion direction. A plate-like arm portion formed on an inclined surface and tapering toward the tip, an engagement hole formed in the arm portion of the first assembling member, and provided in the second assembling member, An arm receiver that has a holding groove for holding each side of the arm portion of the first member, and restricts movement of the arm portion in the insertion direction by abutting each side of the arm portion with the holding groove; Is formed on the assembly member, and the tip of the arm portion is elastically deformed in the plate thickness direction by contact with the arm portion in the process of inserting the arm portion into the arm receiver,
When the movement of the arm portion in the inserting direction is restricted by the arm receiver, the arm portion enters the engaging hole of the first assembling member and engages with the engaging hole in a direction opposite to the inserting direction of the arm portion. A coupling structure for an assembling member, comprising: a claw portion.