JPH07174113A - Joint part structure - Google Patents

Abstract

PURPOSE:To provide a temporary holding function at the time of joint and a repairing property at the time of breakage of a boss. CONSTITUTION:This device consists of a boss 1 erected on a specified base part 10 and having a receiver hole 12 of a screw 5 on a top part 11, a plural number of locate parts 2 having pins 22 at higher positions than the position of the top part 11 of the boss 1 in the circumference of the boss 1 and formed in the circumference of the boss 1 and a jointed article 3 formed with recessed parts 30 in which the pins 22 of the locate parts 2 can be sunk formed on the side of a back surface 32 and supported as it is screwed on the boss 1 by the screw 5. Additionally, it is formed to be jointed in a clearance 40 between the top part 11 of the boss l and the jointed article 3 by the screw 5 and a plate for repairing which can be fixed on the pins 22 of the locate parts 2 can be interposed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a fastening portion such as an automobile part.

[0002]

2. Description of the Related Art FIG. 9 (see Japanese Utility Model Publication No. 50-42949) discloses a structure of a fastening portion for automobile parts and the like.
As shown in FIG. 1, a receiving hole 106 of the tapping screw 104 is provided upright on a predetermined base portion 100 and a top portion 102.
A boss 108 having a boss 108, and an object 110 to be fastened which is mounted on the top portion 102 of the boss 108 and supported by being screwed onto the boss 108 by the tapping screw 104.
And consists of. Reference numeral 112 is a through hole formed in the object to be fastened 110. In addition, for example, FIG.
As shown in Japanese Patent Laid-Open No. 3), a tapping screw 104 is provided upright on a predetermined base portion 100 and a top portion 102.
A boss 108 having a receiving hole 106, a locating portion 116 having a pin 114 around the boss 108 at a position higher than the position of the top portion 102 of the boss 108, and the locating portion 11
6 of the pins 114 are fitted and supported by being screwed to the boss 108 by the tapping screw 104 and supported. Reference numerals 112 and 118 are through holes for inserting the tapping screw 104 and the pin 114 formed in the object 110 to be fastened. 12
Reference numeral 0 is a rib provided between the boss 108 and the locate portion 116.

[0003]

However, in the conventional fastening portion structure described above, in the embodiment shown in FIG.
Since there is no locate part 116 like the embodiment shown in FIG.
It is difficult to attach the article to be fastened 110, and improvement is desired. Further, in the embodiment shown in FIG. 10, although the pin 114 of the locate portion 116 is temporarily held by being inserted into the through hole 118, when the tapping screw 104 is tried to be fastened, the fastening force is exerted by the fastening force. Since 110 rotates, it is difficult to attach the article 110 to be fastened, and improvement is desired. Further, in any of the conventional examples shown in FIGS. 9 and 10, the female screw formed in the receiving hole 106 is crushed by the tapping screw 104 due to repeated fastening to the boss 108 by the tapping screw 104, and a so-called screw stupidity occurs. If it happens, repair cannot be done and the boss 108 will be fastened to
10 could not be concluded, and improvement is desired. Therefore, the present invention has been made in view of the above points, and an object thereof is to provide a fastening portion structure having a temporary holding function at the time of fastening and capable of repairability when the boss is damaged. It is provided.

[0004]

As a fastening portion structure of the present invention, a boss that is erected on a predetermined base portion and has a screw receiving hole at the top, and a position around the boss around the boss. A locating portion having a pin at a high position and formed in plural around the boss, and a recess into which the pin of the locating portion can be inserted are formed on the back surface side, and screwed to the boss by the screw. A repair plate that is fastened to the pin of the locating portion and that can be fastened by the screw in the gap between the top of the boss and the fastened object can be interposed. It is characterized by being configured as.

[0005]

[Operation] According to the fastening portion structure of the present invention, when fastening is performed by the screw so that the pin of the locate portion is immersed in the recess of the article to be fastened, the fastening force is applied through the recess of the article to be fastened. Even if it is applied to the locate portion, since the pin is immersed in the concave portion, the position of the object to be fastened is maintained and the work can be performed with one hand. That is, the mounting workability can be improved. Further, when the boss is damaged, the repair plate can be fixedly held by the pin of the locate portion. Therefore, if the fastening object is fastened to the repair plate, the fastening object is fixedly mounted on the base portion. It became possible to repair when the boss is damaged.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. The fastening structure according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5. In the figure, 1 is a boss, 2 is a locate part, 3 is an object to be fastened, and 4 is a repair plate. The boss 1 is erected at an arbitrary position of a base portion 10 made of a synthetic resin material formed to have a predetermined plate thickness, and has a top portion 11 with a receiving hole 12 into which a tapping screw 5 can be screwed.
The locating portion 2 has ribs 20 on the peripheral surface 13 of the boss 1.
A plurality of (four in this embodiment) cylindrical main bodies 21 are erected at arbitrary positions on the base portion 10 via the bases 10, in other words, positions on the main body 21, in other words, positions of the top 11 of the boss 1. It has a pin 22 integrally formed with the main body 21 at a higher position and having substantially the same diameter dimension. The object to be fastened 3 is formed in a flat plate shape, and a recess 30 formed at a position facing each other so that the pin 22 of the locate portion 2 can be inserted into the back surface 32 side thereof, and a receiving hole 12 of the boss 1. And a through hole 31 through which the tapping screw 5 is screwed. The repair plate 4 has a receiving hole 4 that can be fastened by the tapping screw 5 in a gap 40 between the top 11 of the boss 1 and the back surface 32 of the object to be fastened 3.
1 and a plate general portion 43 having an insertion hole 42 that can be fixed by penetrating the pin 22 of the locate portion 2 and thermally crimping the pin 22.

According to the fastening portion structure of the first embodiment, the pin 22 of the locate portion 2 has the recesses 30, 30, ...
When it is placed so as to be immersed and the fastening operation is performed by the tapping screw 5, the fastening force by the tapping screw 5 is applied to the pin 22 of the locate portion 2 via the recesses 30, 30 ... Also the recess 30
Since the pin 22 is immersed therein, the position of the object to be fastened 3 is held and the work can be performed with one hand. That is, the mounting workability can be improved. Further, when the boss 1 is damaged, the repair plate 4 can be fixedly held on the pin 22 of the locate portion 2. Therefore, first, as shown in FIG. 4, the insertion hole 42 of the repair plate 4 is inserted into the locate portion 2. Insert into pin 22 of. Next, as shown in FIG. 5, the locate portion 2 protruding from above the insertion hole 42 of the repair plate 4
The repair plate 4 is firmly fixed to the locating portion 2 by thermally crimping the pin 22 of the above. Next, the article to be fastened 3 is inserted so that the heat-crimped pin 22 is inserted into the recess 30.
Is placed on the repair plate 4 and is fastened by the tapping screw 5 as shown in FIG. 3,
Since the tapping screw 5 is screwed into the receiving hole 41 of the repair plate 4 to sandwich the object 3 to be fastened, as a result, the object 3 to be fastened is fixedly mounted on the base portion 10, and the boss 1 It enables repairability when damaged.

A fastening portion structure according to a second embodiment of the present invention will be described with reference to FIGS. 6 to 8. The first of this embodiment
The main difference from the embodiment is that the upper end of the locate portion is a rib instead of a pin. That is, the locating portion 6 includes a main body 61 formed of a plurality of ribs (four in this embodiment) protruding radially to the side of the peripheral surface 13 of the boss 1 and a position higher than the position of the top 11 of the boss 1. It has an upper end portion 62 as a pin which extends from the main body 61 and is integrally formed. In the case of this embodiment, the recesses 30, 30 of the object to be fastened 3 and the insertion hole 42 of the repairing plate 4 are naturally formed in the shape of an elongated hole (not shown) in conformity with the upper end 62. Of course. According to the fastening structure of the second embodiment, the locating portion 6 is mounted on the upper end portion 62 serving as a pin so that the concave portions 30, 30, ... When the work is performed, even if the fastening force by the tapping screw 5 is applied to the upper end portion 62 as the pin of the locate portion 6 via the recessed portions 30, 30 of the object to be fastened 3, the upper end as the pin is placed in the recessed portion 30. Since the part 62 is immersed, the object to be fastened 3
The position is maintained and it is possible to work with one hand. That is, the mounting workability can be improved.

Further, when the boss 1 is damaged, the repair plate 4 can be fixedly held on the upper end portion 62 as a pin of the locate portion 6, so as described above, first, the insertion hole of the repair plate 4 is inserted. 42 is inserted into the upper end portion 62 as a pin of the locate portion 6. Next, the repair plate 4 is fixed to the locate portion 6 by thermally caulking the upper end portion 62 as a pin of the locate portion 6 protruding from the insertion hole 42 of the repair plate 4. Next, the object 3 to be fastened is placed on the repair plate 4 so that the heat-crimped pin 62 is inserted into the recess 30, and as shown in FIG. 8, the fastening operation is performed by the tapping screw 5. Then, the tapping screw 5 is screwed into the receiving hole 41 of the repair plate 4 and sandwiches the object to be fastened 3, and as a result, the object to be fastened 3 is fixed to the base portion 10. The repairability when the boss 1 is damaged becomes possible.

[0010]

As described above, the fastening portion structure of the present invention has a boss which is erected on a predetermined base portion and has a screw receiving hole at the top, and the position of the top of the boss around the boss. A locating portion having a pin at a higher position and formed around the boss, and a recess into which the pin of the locating portion can be inserted are formed on the back surface side, and the screw is screwed to the boss by the screw. A repair plate that is supported by the screw and that can be fastened by the screw in the gap between the top of the boss and the fastened object and that can be firmly fixed to the pin of the locate portion. Since it is characterized in that the fastening operation is performed by the screw so that the pin of the locate portion is immersed in the recess of the object to be fastened, the fastening force will be Also applied to the locator part through the,
Since the pin is recessed in the recess, the position of the object to be fastened is maintained and the work can be performed with one hand, so that the workability of mounting can be improved. Further, when the boss is damaged, the repair plate can be fixedly held by the pin of the locate portion. Therefore, if the fastening object is fastened to the repair plate, the fastening object is fixedly mounted on the base portion. Therefore, there is a practical effect that repairability when the boss is damaged becomes possible.

[Brief description of drawings]

FIG. 1 is a sectional view of a fastening portion structure according to a first embodiment of the present invention before attachment of an object to be fastened.

FIG. 2 is a perspective explanatory view around a boss before attachment of an object to be fastened in FIG.

FIG. 3 is a cross-sectional view in which a repair plate is installed in FIG.

FIG. 4 is a perspective explanatory view before mounting a repair plate on FIG. 3.

FIG. 5 is an explanatory perspective view showing a state in which a repair plate has been installed in FIG.

FIG. 6 is a cross-sectional view of a fastening portion structure according to a second embodiment of the present invention before attachment of an object to be fastened.

FIG. 7 is a perspective explanatory view around the boss before attachment of the object to be fastened in FIG. 6;

FIG. 8 is a cross-sectional view in which a repair plate is installed in FIG.

FIG. 9 is a perspective explanatory view around the boss before attachment of an object to be fastened in the first conventional example.

FIG. 10 is a perspective explanatory view around a boss before attachment of an object to be fastened in a second conventional example.

[Explanation of symbols] 1 boss 2 locate part 3 object to be fastened 4 repair plate 5 tapping screw 10 base part 11 boss top 12 receiving hole 22 pin 30 recess 40 gap between the top of the boss and the backside of the object to be fastened

Claims (1)

[Claims] 1. A boss that is erected on a predetermined base portion and has a screw receiving hole at the top, and a pin around the boss that is higher than the position of the top of the boss, and that has a plurality of pins around the boss. The boss has a formed locating portion and a recessed portion into which a pin of the locating portion can be inserted and which is supported by being screwed into the boss by the screw. The structure of the fastening portion, wherein a repair plate that can be fastened by the screw and fixed to the pin of the locating portion can be interposed in the gap between the top and the object to be fastened. .