JPH09144726A - Fixture and member fitting method using the fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixture which unnecessary to be fitted to a fastening tool in advance. SOLUTION: A fixture 1 consists of a shaft 5 and a hollow collar 6 having a hole through which the shaft 5 is passed so that a first member is fitted to a second member. The collar 6 is locked to the shaft 5 in the condition in which the shaft 5 is passed through, and a flange 7 to be fitted to the first member is formed on one end side of the shaft 5, the collar 6 is formed transformable so that a part (a lower part) of the collar is expanded by the pressing force from the end part on the side opposite to the flange 7 to the flange side, and the second member is pressed against the first member and held by the expanded part of the collar.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener for attaching another member such as a mechanical component or an electrical component to one member such as a panel, and using this fastener to attach another member to one member. A method for attaching a member to be attached.

[0002]

2. Description of the Related Art Fasteners such as bolts and nuts and blind rivets are used to attach parts to vehicle body panels. Further, a fastener for facilitating the attachment of parts from one side of the panel is disclosed in WO 94/01687.

[0003]

In all of the above-mentioned conventional fasteners, it is necessary to previously attach a nut, a blind rivet or a collar to the nose of the fastening tool of the fastener. The time and labor required for this mounting may be increased, or a mounting error may occur. This mounting error may result in a defective mounting of the member or a waste of time.

Therefore, an object of the present invention is to provide a fastener that does not need to be attached to a fastening tool in advance, and to provide a member mounting method using the fastener.

[0005]

In order to achieve the above object, according to the present invention, there is provided a fastener for attaching another member to one member, which has a shaft and a hole through which the shaft passes. And a hollow collar formed therein, the collar being locked to the shaft in a state where the shaft penetrates, and an attachment means attached to the one member is formed on one end side of the shaft. It is formed to be deformable so that a part of it expands in diameter by a pushing force from the end on the side opposite to the mounting means to the side of the mounting means. There is provided a fastener characterized by being pressed and held to a member, and since the fastener is integrally handled as an assembly in which the collar is locked to the shaft, it is not necessary to attach the collar to the fastening tool in advance, and it is possible to reduce the installation time and time. Miss of the problem is eliminated.

In the above-mentioned fixing device, a slit or groove extending in the longitudinal direction is formed in the collar to facilitate the deformation in the radial expansion direction and ensure the attachment of the member. It is also possible to extend this slit or groove to the end of the collar and attach a thin member. In addition, the attachment means of the shaft is constituted by a flange formed at an end portion of the shaft, and the fastener is formed on the one member by forming the flange with a material and a shape suitable for welding to the one member. Can be welded. In this case, the other member can be brought into close contact with one member by making the outer diameter of the flange substantially the same as the outer diameter of the collar. Also, the collar may be provided adjacent to the shaft flange with a flange or washer having a larger diameter than the shaft flange. Further, the attachment means can be formed of a material and a shape formed on the end portion of the shaft, which is suitable for crimping to one member. Also,
As a mounting means, a diametrically expanded head may be formed at the end of the shaft, and one member and another member may be sandwiched between the diametrically expanded head and the diametrically expanded portion of the collar.

Before the collar is deformed, the shaft and the collar are locked to each other by the engagement between the outer peripheral surface of the shaft and the inner wall of the collar. The shaft and the collar may be screw-engaged with each other before the collar is deformed. The shaft is formed with a screw that engages with a small-diameter inner wall portion other than the deformed portion of the collar after deformation to strengthen the connection between the collar and the shaft after deformation and to be removable by rotating the collar. Good. Instead of the screw, the shaft may be formed with a groove or unevenness to be engaged with a small-diameter inner wall portion other than the deformed portion of the collar after the deformation to strengthen the connection between the collar and the shaft.

The collar can be made of synthetic resin. In this case, a metal insert can be provided in the non-deformable portion inside the collar made of synthetic resin to strengthen the connection between the deformed collar and the shaft. In addition, not only the connection is firm but also the removal is achieved by forming a male screw on the shaft with which the small-diameter inner wall portion other than the deformed portion of the deformed collar engages, and forming a female screw on the collar that engages with the screw. Can be easy. Further, a grip portion is formed at an end portion of the shaft opposite to the attaching means, the grip portion protruding from the collar and engaged with the jaw of the fastening tool of the fastener, and between the grip portion and another shaft portion. It is possible to form a small-diameter portion that is broken by pulling the jaws, to ensure the deformation of the collar, and to strengthen the connection between the collar and the shaft after the deformation. Further, a large-diameter portion having a larger diameter than the other shaft portion is formed on the shaft adjacent to a flange as a mounting means, and the outer diameter of the large-diameter portion is formed to have a diameter that can be expanded while the collar slides. As a result, it is possible to further increase the deformation in the radial expansion direction and to strengthen the pressing to other members. In this case, it is preferable to form slits or grooves extending in the longitudinal direction on the collar to facilitate deformation in the radial direction. Then, it is preferable to form a screw on the large-diameter portion of the shaft, with which the small-diameter inner wall portion other than the deformed portion of the collar after deformation engages.

According to the present invention, the fastener used in the member attaching method for attaching one member to another member comprises a shaft and a hollow collar having a hole through which the shaft passes, the collar being the shaft. Is engaged with the shaft in a state where it penetrates, and a mounting means for mounting to one member is formed on one end side of the shaft.
It is formed so as to be partially deformable by the pushing force from the end portion on the side opposite to the attachment means to the attachment means side. The member attachment method using this fastener is the fastener attachment means. To the one member, place the other member on the one member with the fastener protruding from the one member penetrating the mounting hole of the other member, and use the fastener of the fastener with its nose Arranged to receive the fastener protruding from the member,
The fastener includes a step of pushing the collar of the fastener toward the mounting means and deforming the collar so that the collar expands outward in the radial direction, and the deformed portion of the collar causes one member mounted on the mounting means to join another member. Since the collar is not attached to the fastening tool in advance, there is no problem of mounting time and mistake.

In the above member mounting method, in the step of deforming the collar, the jaw of the fastening tool is engaged with a grip portion provided on the shaft so as to project from the collar, the shaft is pulled by the jaw, and the collar is moved to the mounting means side. This is done by pushing in to ensure the deformation and strengthen the connection between the collar and the shaft after the deformation. In addition, the step of deforming the collar is performed by deforming the collar so that a part of the collar is expanded in diameter and the outer surface of the other collar is radially inwardly deformed by the nose of the fastening tool. It is also possible to form the collar in a hexagonal shape or the like so that the collar can be removed by a tool such as a spanner. In that case, it is preferable that the portion of the collar adjacent to the mounting means is formed thick, so that it is possible to prevent undesired deformation when the collar is narrowed down.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a fixing tool 1 according to a first embodiment of the present invention, and FIGS. 2 and 3 show the fixing tool 1 using the fixing tool 1.
The operation of attaching one member such as the panel, that is, the first member 2 to the other member such as the component, that is, the second member 3, is shown. FIG. 4 is a plan view of the fixing tool 1 after the attaching operation. . In FIG. 1, the fastener 1 is a rod-shaped shaft 5
And a hollow cylindrical collar 6 having a hole through which the shaft 5 penetrates. The collar 6 is locked to the shaft 5 in a state where the shaft 5 penetrates. In this way, the fastener 1
Is used as an integral assembly in which the collar 6 is connected to the shaft 5.

The shaft 5 may be formed of a synthetic resin rod, but in the present embodiment, it is formed of a metal rod. Similarly, the collar 6 may be formed of a synthetic resin cylindrical body, but in the present embodiment, it is formed of a metal cylindrical body. A flange 7 as an attaching means attached to the first member 2 is formed on one end (lower end in FIG. 1) of the shaft 5. On the lower surface of this flange 7, the first member 2
A weld 9 that can be welded to is formed, and the flange 7 is attached to the first member 2 by welding. A male screw portion 10 is formed on the shaft portion from the flange 7 to a certain height. A small diameter portion 11 that can be broken by pulling with a fastening tool is formed on the upper portion of the male screw portion 10.
A holding portion 13 having a large diameter is formed at a portion above the small diameter portion 11 so as to frictionally engage the inner wall of the collar 6 and lock the collar 6 on the shaft 5. Holding part 13 of shaft 5
The upper part projects from the collar 6 and extends to form a grip 14 which is engaged by the jaws of the fastening tool.

The collar 6 is formed to be deformable so that a part of the collar 6 is expanded in diameter by a pushing force from the end portion of the shaft 5 on the side opposite to the flange 7 toward the flange 7. To facilitate this deformation, the collar 6 has slits 15 (FIG. 2) extending downward from the intermediate height position in the longitudinal direction of the collar.
See also) is formed. Although the number of slits 15 can be set to an arbitrary number, a pair of slits 15 are formed facing each other in the diametrical direction in this embodiment. The collar 6 is formed with a small diameter at a portion near the upper end corresponding to the holding portion 13 of the shaft and has a locking portion 17 that frictionally engages with the holding portion 13 of the shaft 5.
Having. The inner diameter of the locking portion 17 is formed to be slightly smaller than the outer diameter of the holding portion 13 of the shaft 5, and the locking portion 17 is locked and fixed to the holding portion 13 by frictional engagement. Further, the inner diameter of the locking portion 17 is formed to be slightly smaller than the outer diameter of the male screw portion 10 of the shaft 5, and after the deformation of the collar that deforms at the slit 15, the locking portion 17 that is not deformed has a male screw portion. It is adapted to engage 10.

Using the fastener 1, one member, namely the first
An operation of attaching the member 2 to another member, that is, the second member 3 will be described with reference to FIGS. 2 and 3. First, the fastener 1
Is attached to the first member 2 by welding the flange 7 of the shaft 5 to the first member 2 with a welding machine. Next, the fastening tool 18 is positioned so that the fastener 1 standing upright from the first member 2 is received in the nose 19 of the fastening tool 18 (only the tip is shown for convenience of illustration) of the fastener. As described above, since the collar 6 is already locked to the shaft 5 of the fixing tool 1, it is not necessary to previously attach the collar 6 to the nose 19. The nose 19 causes the grip portion 14 of the shaft of the fastener 1 to be gripped by the pair of jaws 21, and the tip of the nose 19 is brought into contact with the upper end of the collar 6. When the fastening tool 18 is operated, the jaw 21 is pulled up and the grip portion 14 of the shaft is pulled up,
The reaction force causes the tip of the nose 19 to strongly press the upper end of the collar 6 downward. By this pressing, the collar 6
The part separated by the slit 15 is deformed so as to expand radially outward.

FIG. 3 shows a state in which the collar 6 is deformed so as to expand from the portion of the slit 15 extending from the middle portion to the lower portion toward both sides thereof. In FIG. 3, the jaw 21 of the fastening tool is strongly pulled upward, the grip portion 14 of the shaft is strongly pulled upward, and the shaft 5 is broken at the small diameter portion 11 (see FIG. 1). The tip of the nose 19 at this time has a strong force to press the upper end of the collar 6 downward, and deforms the collar 6 so as to expand the diameter from the slit 15 portion toward both sides thereof. The appearance of the deformed portion 22 of the collar 6 is also shown in FIG. The deformed collar portion 22 presses the second member 3 against the first member 2, and this pressing attaches the second member 3 to the first member 2. As described above, it is not necessary to previously attach the fastener 1 to the fastening tool 18, time and labor for attachment are not required, and a problem associated with an attachment error is eliminated. In addition,
A male screw portion 10 is formed on the shaft 5, and the inner wall portion of the small-diameter locking portion 17 of the deformed collar 6 is engaged with the male screw portion 10. In this way, since the collar 6 is connected by the screw engagement of the shaft 5, the connecting strength is maintained high. Then, by this screw engagement, by rotating the collar 6 with respect to the shaft 5,
It can be removed from the shaft 5 and the second member 3
It can be removed from the member 2.

FIGS. 5A to 5D show modified examples of the slits of the collar 6. In FIGS. 5A and 5B, the slit 23 of the collar 6 extends to the lower end of the collar 6. In this case, the flange 7 at the lower end of the shaft 5 has a recess 25 so that the lower end of the collar 6 does not expand. In this way, by extending the slit 23 to the lower end, the deformed collar portion 22 can be formed on the lower side of the collar 6, so that the thin second member 3 can be held by the first member 2 with a high fastening force. FIG. 5 (C)
Shows an example in which the taper groove 26 is formed in the flange 7 at the lower end of the shaft 5 so that the lower end of the collar 6 does not expand when the slit 23 extends to the lower end of the collar 6. FIG. 5D shows an example in which the slit 27 is connected only at the lower end portion of the collar 6. The slit 27 is formed so as to be separated at the final stage of deformation of the collar 6, and the deformed collar portion can be formed on the lower side of the collar 6.

FIGS. 6A to 6C show modified examples of the flange of the shaft 5. In FIG. 6A,
The flange 29 is formed so that its outer diameter is substantially the same as the outer diameter of the collar 6. In this way, the flange 2
By making the outer diameter of 9 substantially the same as the outer diameter of the collar 6, the second member can be held in close contact with the first member. In FIG. 6B, the collar 6 has a flange 3 adjacent to the flange 29 and having a diameter larger than that of the flange 29.
0 may be integrally provided. Instead of the flange 30, a washer may be inserted between the lower end of the collar 6 and the shaft flange 29. This flange or washer 30 also allows the second member to be retained on the first member at the height of the flange 29. 6C, the flange 31 of the shaft 5 does not have the lower surface welded to the first member 2 like the flange 7, but the flange upper surface has the first surface.
The structure is such that it can be welded to the member 2. In this case, a hole 33 is made in the first member 2, the collar 6 of the fixing tool is inserted into this hole, the flange 31 is brought into contact with the first member 2, and projection welding or the like is performed to fix the fixing tool. Is attached to the first member.

FIGS. 7A and 7B show an example in which the attachment means of the shaft 5 to the first member 2 is not a welding flange for welding. In FIG. 7A, the mounting means comprises a first flange 34 having a diameter considerably larger than the mounting hole of the first member and a second flange 35 having a diameter slightly larger than the mounting hole. It is crimped so that it is clamped from both sides. In this case, to prevent rotation, one or both of the flanges should have a non-circular shape (for example,
It is preferably formed into a hexagon or the like. Further, FIG. 7B shows that the shaft 5 is attached to the plastic portion of the first member 2.
An example in which the expanded diameter portion 35 is fixed by press fitting or insert molding is shown. Also in this case, the expanded portion 3
5 can be formed into a non-circular shape, or as shown in the drawing, the enlarged diameter portion 35
It is preferable to prevent the rotation by knurling the side surface of the.

8A and 8B show the shaft 5
Here, an example is shown in which the first member 2 is not attached in advance. A diametrical expansion head 37 serving as a mounting means is formed at one end of the shaft 5, and the diametrical expansion head 37 is formed in a hexagonal shape or the like. The fastener 1 having the enlarged diameter head 37 is inserted into the mounting holes of the first member 2 and the second member 3 as shown by the arrow 38, and FIG.
As shown in FIG. 5, the collar 6 is deformed in the diameter expanding direction by a fastening tool, and the deforming collar portion 22 and the diameter expanding head 37 sandwich the first member 2 and the second member 3 to attach both members to each other. . After installation, the hexagonal expanding head 3 of the shaft 5
Alternatively, it can be removed by rotating the deformed collar portion 22 of the collar 6.

9A and 9B show a modified example of the male screw portion of the shaft 5 when it is not necessary to remove it. On the shaft 5 of FIG. 9A, two large diameter portions 39 and 41 having oblique grooves formed on the side surfaces are formed vertically, and the angles of the grooves of these large diameter portions are opposite to each other. Therefore, the collar 6 does not rotate with respect to the shaft 5, thereby strengthening the connection. In (B) shaft 5 of FIG. 9, a multi-step circumferential groove 42 is formed on the outer peripheral surface of the shaft at a portion corresponding to the male screw portion. As shown in the drawing, each circumferential groove 42 is formed in a shape in which the shaft 5 is tapered toward the top. The inner wall of the locking portion 17 of the collar 6 after the deformation is engaged with the large diameter portions 39 and 41 and the circumferential groove 42 to strengthen the connection between the collar 6 and the shaft 5.

In the example of FIG. 1, in order to connect the collar 6 to the shaft 5 to form an integral assembly, the retaining portion 13 of the shaft 5 is frictionally engaged with the retaining portion 17 of the collar 6. There is. FIGS. 10 (A) and 10 (B) show a modified example of this connection. FIG. 10 (A) shows a flange 6 for connecting the collar 6 to the shaft 5 to form an integral assembly. 7 on the shaft 5 and the collar 6 adjacent to the screw 7,
An example is shown in which the above is formed and screw connection is performed. FIG. 10B shows an example in which the shaft 5 and the portion 45 of the collar 6 adjacent to the flange 7 are crimped from the outside to connect the collar 6 to the shaft 5 to form an integral assembly. There is. Although not shown, as another example, the collar 6 may be formed to have a small diameter so as to be frictionally engaged with the male screw portion 10.

11A and 11B show a modification of the slit 15 of the collar 6 of the fixing tool 1 of FIG.
In this example, a pair of grooves 46 is formed on the inner surface of the collar 6 and extends in the longitudinal direction from the intermediate height position downward. The groove 46 allows the collar 6 to be formed similarly to the slit.
It facilitates deformation in the radial direction. 12A and 12B show an example in which the slit 15 of the collar 6 of the fastener 1 of FIG. 1 is not provided. In this case, as shown in FIG. 12B, the deformed portion 47 in the radial direction of the collar 6 is formed over the entire outer periphery of the collar 6. For this reason, the non-cylindrical portion 49 that can be engaged with a tool such as a spanner is formed in the non-deformable portion of the collar 6, so that the rotation at the time of removal can be facilitated.

13A and 13B show an example in which the collar 6 is made of synthetic resin. The synthetic resin forming the collar 6 includes, for example, hard plastic and soft plastic such as rubber. In the illustrated example, a cylindrical metal insert 50 is provided in the non-deformable portion inside the collar 6 made of synthetic resin. With this metal insert 50, as shown in FIG. 13B, the deformed collar 6 securely engages with the male screw portion 10 of the shaft 5 and maintains a high coupling strength between the collar and the shaft. Also, it can be easily removed. In this example, the slit is not formed due to the strength of the synthetic resin collar 6, but the slit may be provided. When the slit is not formed, the deformed portion 51 is formed on the entire outer circumference of the collar 6. 14A and 14B also show an example in which the collar 6 is made of synthetic resin. There is no metal insert on the inner surface of the collar 6 of this example, and the male screw portion 10 of the shaft 5 is
A female screw 53 is formed to be screwed into the. This female screw 5
By 3, the connection strength between the collar and the shaft is kept high and it can be easily removed. 15A and 15B also show an example in which the collar 6 is made of synthetic resin. In this example, the shaft 5 has no gripping portion. When the collar 6 is formed of synthetic resin, the pushing force is smaller than that of the metal collar when the collar 6 is deformed, so that the collar 6 is deformed by pulling the grip portion with the fastening tool 18. Power is not needed. For this reason, in the example of FIG. 15, the shaft 5 is formed into a short rod-shaped body including the flange 7 and the male screw portion 10. In this case, as shown in FIG. 15B, it suffices to use the tool 54 to push the collar 6 at the arrow 55 as shown. Therefore, not only the shape of the shaft 5 can be simplified, but also the tool 54 can be simple and the mounting operation can be simplified. A slit may be provided also in this example.

16A to 16C show an example in which the collar 6 of the fastener 1 of FIG. 1 is squeezed from the outside to the inside in the radial direction, and the collar 6 is connected to the male screw portion 10 of the shaft 5. There is. In this example, the tip 5 of the nose 57 of the fastening tool 18
8 is formed in a shape in which a hole is formed which receives the collar 6 and squeezes inward in the radial direction. Therefore, as shown in FIG. 16 (A), the fastening tool 18 is positioned so as to receive the fastener 1 erected on the first member 2, and
As shown in (B), when the jaw 21 is pulled upward, the tip 58 of the nose 57 strongly presses the collar 6 downward, so that the collar 6 is radially expanded outward on both sides of the slit 15. Transform it. Then, as shown in (C), the tip portion 58 of the nose 57 squeezes the collar 6 from the outside to the inside in the radial direction by pulling the jaw 21 further upward, and the collar 6 is attached to the male screw portion 10 of the shaft 5. Connect strongly.

17 (A) to 17 (C), the collar of the fastener (see FIG. 12) having the collar 6 without slits is squeezed from the outer side to the inner side in the radial direction, and the side surface of the collar 6 has a hexagonal shape or the like. An example of forming a non-cylindrical shape (see the portion 59) is shown. In the fastening tool used in this example, the collar receiving hole of the nose tip portion 58 of the fastening tool in FIG. 16 is formed in a non-circular shape such as a hexagon. Therefore, the formation of the non-cylindrical portion 49 as shown in FIG. 12 is unnecessary. Due to the formed non-cylindrical portion 59, even if the deformed collar portion 47 has a circular shape, the collar 6 can be rotated and can be easily removed. The color 6 is shown in FIG.
It is preferable that the lower end portion 61 adjacent to the flange 7 is formed thick as shown in FIG. The thickness is formed in this manner in order to prevent the lower end portion 61 of the collar from being deformed by the strong collar pushing force when narrowing down to a non-cylindrical shape. If the deformation at the time of fastening can be prevented, such a thick lower end portion is not essential.

18A to 18C show the shaft 5
3 shows a fastener in which a large-diameter portion 62 having a larger diameter than other shaft portions is formed on a lower end side portion adjacent to the flange 7. The outer diameter of the large diameter portion 62 is formed to be substantially the same as the outer diameter of the collar 6, and the large diameter portion 62 is formed so that the second member 3 is not locked. The collar 6 has slits 2 extending to the lower end of the collar 6, similar to the fastener of FIG.
3 are formed. Since the large diameter portion 62 is formed on the shaft 5 in this manner, the collar 6 pushed downward by a fastening tool or the like opens on both sides of the slit 23 while the lower end portion slides the large diameter portion 62. , The deformed collar portion 63 is largely deformed in the radial direction (see FIG. 18).
(See (B) and (C)). By this deformation, the second member 3 can be strongly pressed against the first member 2 to increase the mounting strength.

In the fasteners (A) to (C) of FIG. 19 as well, a large-diameter portion 62 having a larger diameter than other shaft portions is formed in the portion of the shaft 5 on the lower end side adjacent to the flange 7. No slit is formed in the collar 6. Therefore, when the collar 6 is pushed down by a fastening tool or the like, the lower end of the collar 6 slides along the large diameter portion 62 and is deformed so as to expand its diameter to the entire outer circumference. Since the lower end of the deformed collar portion 63 is located on the entire circumference, the second member 3 is strongly pressed against the first member 2 in this case as well. In the example of FIGS. 19A and 19B, the color 6
A non-cylindrical portion 49 is formed on the outer surface of the. When this non-cylindrical portion 49 is not provided, a non-cylindrical portion 59 such as a hexagon may be formed during the fastening operation as shown in FIG. 19C. This eliminates the need to form the non-cylindrical portion 49.

Further, in the fasteners of FIGS. 20A to 20C, the diameter of the lower end side shaft 5 adjacent to the flange 7 is larger than that of the other shaft portions and the large diameter portion 62 of FIG. A slightly long large diameter portion 65 is formed, and this large diameter portion 6
A male screw 66 is formed on the member 5. A slit 23 extending to the lower end of the collar 6 is formed in the collar 6 as in the fixing device of FIG. Therefore, when the collar 6 is pushed downward by a fastening tool or the like, the lower end 69 of the collar 6 expands on both sides of the slit 23 while sliding on the large diameter portion 65, as shown in FIG. It is deformed, and this deformed portion 69 presses the second member 3. Further, the portion 70 above the portion 69 deformed in the radial direction is the male screw 66.
Is deformed in the radial direction so as to surround the entire outer periphery of the inner peripheral surface of the inner peripheral surface of the inner peripheral surface of the male screw 66. Thus, this engagement causes the collar 6 to be rigidly connected to the shaft 5 and the upper portion 7
Since 0 engages with the male screw 66 of the shaft, the collar 6 can be easily removed from the shaft 5 by rotating the deformed portion 69 of the collar with a tool or the like. FIG. 20 (C)
Unlike (A) and (B), the collar 6 has no slits. Therefore, when the collar 6 is pushed downward by a fastening tool or the like, the lower end portion 71 of the collar 6 is slid along the large diameter portion 66 and is deformed so as to be expanded in diameter over the entire outer periphery, and the deformed portion 71 causes the second member 3 to move. Pressed. The upper portion 70 of the collar 6 is (A) and (B)
Since it engages with the male screw 66 of the shaft 5 similarly to the collar 6, the collar is firmly connected to the shaft and can be easily removed by rotation. For removal, a non-cylindrical portion 49 for tool engagement is formed on the outer surface of the collar 6.

[0029]

According to the present invention, the fastener comprises a shaft and a hollow collar having a hole through which the shaft penetrates. It can be handled as an assembly, and since the shaft has means for attaching to one member,
It is not necessary to attach the collar to the fastening tool, which reduces the time required for attachment and eliminates the problem of attachment error. Further, according to the member mounting method of the present invention using such a fastener, the fastener mounting means is attached to one member, and the fastener protruding from the one member penetrates the mounting hole of the other member. Other members are arranged on the member of No. 1, and the fastening tool of the fastener is arranged so that the nose of the fastener receives the fastener protruding from the one member. By deforming so that it expands outward in the direction, other members can be attached to one member, eliminating the need to previously attach the collar to the fastening tool, omitting the installation time, and eliminating the problem of installation error. There is.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a fastener according to an embodiment of the present invention.

FIG. 2 is a front view showing a state in which a fastening tool is positioned on a fixture.

FIG. 3 is a front view showing a state in which two members are attached by fastening a fastener with a fastening tool.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5A to FIG. 5D are views showing a modification of the color slit.

6 (A) to (C) are views showing a modified example of the flange of the shaft.

7 (A) and 7 (B) are views showing a modified example of a shaft attaching means.

8A and 8B are views showing a fixture for sandwiching two members from both sides, FIG. 8A is a front view showing a state before attachment, and FIG.
[Fig. 6] is a view showing a state after attachment.

9 (A) and 9 (B) are views showing an example in place of a male screw portion of a shaft.

10 (A) and 10 (B) are views showing a modified example of a locking portion of a collar and a shaft.

FIG. 11A is a vertical cross-sectional view of a collar having a groove on an inner wall as a modified example of a slit, and FIG. 11B is a sectional view of FIG.
FIG. 6 is a sectional view taken along line BB of FIG.

FIG. 12 shows an example of a fastener without slits,
(A) is a partially broken front view of the fastener before fastening,
(B) is a partially sectional front view showing the fastener and the member after fastening.

FIG. 13 shows an example of a fastener in which a collar is formed of a synthetic resin and a metal insert, (A) is a partially cutaway front view of the fastener before fastening, and (B) is a diagram after fastening. It is a front view which shows the fixing tool and member of FIG.

FIG. 14 shows an example of a fastener in which a collar is made of synthetic resin and an internal thread is formed on the inner surface, (A) is a partially cutaway front view of the fastener before fastening, and (B). [FIG. 3] is a partially sectional front view showing a fastener and a member after fastening.

FIG. 15 shows an example of a fastener in which the collar is made of synthetic resin, an internal thread is formed on the inner surface, and the shaft has no grip portion. (A) is a partially broken front view of the fastener before fastening. It is a figure and (B) is a front view which carried out the partial cross section which shows the fixing tool after fastening, a fastening tool, and a member.

FIG. 16 shows a mounting method for squeezing and deforming the outer surface of the collar when fastening the fastener, (A) is a partially cutaway front view showing a state in which the fastening tool is positioned on the fastener, and (B) is , A partially cutaway front view showing the state in which the collar of the fixing device has been deformed but before the side surface of the collar has been narrowed down, (C)
FIG. 6 is a partially cutaway front view showing a state after the side surfaces of the collar of the fixing device have been narrowed down.

FIG. 17 shows an example in which the outer surface of the collar is narrowed and deformed into a hexagon when the fastener is fastened, (A) is a partially cutaway front view of the fastener, and (B) is a diagram of the collar of the fastener. A partially cutaway front view showing the state after finishing the side narrowing,
(C) is a top view of the fixing tool of (B).

FIG. 18 shows an example of a fastener in which a large diameter portion is formed above a flange of a shaft. (A) is a partially cutaway front view of the fastener, (B) shows a state after fastening the fastener. The partially broken front view and (C) are plan views of the fastener shown in (B).

FIG. 19 is a modification of the fastener of FIG. 18, showing a fastener without a slit in the collar, (A) is a partially cutaway front view of the fastener, and (B) is a diagram of (A). FIG. 10C is a partially cutaway front view showing a state after fastening the fastener, and FIG. 13C is a modification of the fasteners of FIGS. 9A and 9B, showing a state of the fastener after deforming the collar into a hexagon. It is a partially broken front view shown.

FIG. 20 is yet another modification of the fastener of FIG.
The fastener which formed the male screw in the large diameter part of a shaft is shown, (A) is a partial fracture front view of the fastener which has a slit in a collar, (B) is the state after fastening of the fastener of (A). FIG. 7C is a partially cutaway front view of the fixing tool without slits in the collar, which shows the fixing tool after deformation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fastener 2 1st member (1 member) 3 2nd member (other member) 5 Shaft 6 Collar 7 Flange (attaching means) 10 Male screw part 11 Breakable small diameter part 13 Holding part 14 Gripping part 15 Slit 17 Engagement Stop portion 18 Fastening tool 19 Nose of fastening tool 21 Jaw 22 Deformed collar portion 23 Slit 37 Expanding head 39, 41 Large diameter portion of shaft 42 Shaft circumferential groove 46 Color groove 47 Color deforming portion 49 For tool engagement Non-cylindrical part 50 Metal insert 51 Deformed collar part 57 Nose of fastening tool 59 Non-cylindrical part for tool engagement 62 Shaft large diameter part 63 Deformed collar part 65 Large diameter part with male screw

Claims (23)

[Claims] 1. A fastener for attaching another member to one member, comprising a shaft and a hollow collar having a hole through which the shaft penetrates, the collar being in a state where the shaft penetrates. Attachment means for engaging with the shaft is formed on one end of the shaft so as to be attached to the one member, and the collar is provided with the attachment means from an end opposite to the attachment means. It is formed to be deformable so that a part of the collar is expanded in diameter by a pushing force to the side, and the other member is pressed and held by the one member by the expanded diameter part of the collar. Fastener. 2. The fastener according to claim 1, wherein the collar is formed with a slit or groove extending in the longitudinal direction for facilitating the deformation in the radial direction. 3. The fastener according to claim 2, wherein the slit or groove extends to the end of the collar. 4. The fastener according to claim 1, wherein the attachment means of the shaft is a flange formed at the end of the shaft, the flange being made of a material suitable for welding to the one member and A fastener characterized by comprising a shape. 5. The fastener according to claim 4, wherein an outer diameter of the flange is substantially the same as an outer diameter of the collar. 6. The fastener according to claim 5, wherein the collar is provided adjacent to the shaft flange with a flange or a washer having a diameter larger than that of the shaft flange. 7. The fastener according to claim 1, wherein the attachment means of the shaft is made of a material and a shape formed on an end portion of the shaft, which is suitable for crimping to the one member. Characterized fasteners. 8. The fastener according to claim 1, wherein the attaching means of the shaft is a diameter-expanding head formed at an end portion of the shaft, and the diameter-expanding head and the collar are expanded in diameter. A fastener, wherein the one member and the other member are sandwiched by the portion. 9. The fastener according to claim 1, wherein the shaft and the collar are before deformation of the collar.
A fastener characterized in that the outer peripheral surface of the shaft and the inner wall of the collar are engaged with each other. 10. The fastener according to claim 1, wherein the shaft and the collar are screw-engaged with each other before the collar is deformed. 11. The fastener according to claim 1, wherein the shaft is formed with a screw for engaging a small-diameter inner wall portion other than the deformed portion of the collar after deformation. . 12. The fastener according to claim 1, wherein the shaft is formed with a groove or a recess for engaging a small-diameter inner wall portion other than the deformed portion of the collar after deformation. Fastener. 13. The fastener according to claim 1, wherein the collar is made of synthetic resin. 14. The fastener according to claim 13,
A fastener, wherein a metal insert is provided on a non-deformable portion inside the collar made of synthetic resin. 15. The fastener according to claim 13,
The shaft is formed with a screw that engages with a small-diameter inner wall portion other than the deformed portion of the collar after deformation, and the collar is formed with a female screw that is screwed into the screw. Fastener. 16. The fastener according to claim 1, wherein an end portion of the shaft opposite to the attaching means is formed with a grip portion protruding from the collar and engaged with a jaw of a fastener tool of the fastener. A fastener having a small diameter portion formed between the grip portion and the other shaft portion, the small diameter portion being broken by pulling of the jaw. 17. The fastener according to claim 1, wherein the attachment means of the shaft is a flange formed at the end of the shaft, the shaft having another shaft portion adjacent the flange. A larger-diameter portion having a larger diameter is formed, and an outer diameter of the large-diameter portion is formed such that the collar is expanded by sliding the large-diameter portion by the pushing. A fastener to be used. 18. The fastener according to claim 17, wherein
The fastener according to claim 1, wherein the collar is formed with a slit or groove extending in a longitudinal direction for facilitating deformation in a radial direction. 19. The fastener according to claim 17, wherein
A fixing tool characterized in that a thread is formed on the large diameter portion of the shaft so that a small diameter inner wall portion other than the deformed portion of the collar after deformation is engaged. 20. A member mounting method for mounting another member to one member using a fastener, wherein the fastener comprises a shaft and a hollow collar having a hole through which the shaft passes. , The collar is locked to the shaft with the shaft passing through,
An attachment means for attaching to the one member is formed on one end side of the shaft, and a part of the collar is expanded by a pushing force from an end portion opposite to the attachment means to the attachment means side. It is formed so as to be deformable so as to have a diameter, and the attachment means of the fastener is attached to the one member, and the fastener protruding from the one member penetrates the attachment hole of the other member. The other member is arranged on one member, and a fastening tool of the fastener is arranged so that its nose receives the fastener protruding from the one member, and the collar of the fastener is fixed by the fastening tool. The step of pushing the member to the mounting means side and deforming it so as to spread outward in the radial direction, wherein the deformed portion of the collar causes the one member mounted on the mounting means to join the other member to the other member. A method for attaching a member, characterized in that the member is attached to the member. 21. The member mounting method according to claim 20, wherein in the step of deforming the collar, the jaw of the fastening tool is engaged with a grip portion provided on the shaft so as to project from the collar, and the jaw is used to move the jaw. A method for attaching a member, comprising pulling a shaft and pushing the collar toward the attaching means. 22. The member mounting method according to claim 20, wherein in the step of deforming the collar, the collar is pushed in to deform so as to expand a part of the collar, and the outer surface of another collar part is fixed to the fastening tool. The member mounting method, characterized in that it is deformed by squeezing inward in the radial direction by the nose. 23. The member attaching method according to claim 22, wherein a portion of the collar adjacent to the attaching means is formed thick.