JPH0669418U - Detachable fixture - Google Patents

Abstract

(57) [Abstract] [Purpose] The mounting member can be easily mounted on the mounted member without losing the lock pin, and the mounting member can be easily mounted on the mounted member from the mounted member side. It can be removed and the fixture can be used over and over again. [Structure] Cylindrical member 1 which can be loosely inserted in through hole 13a of panel 13.
A flange 16c is provided at the base end of the cylinder body 16a of No. 6, and an insertion hole 16d smaller than the cylinder hole 16b is provided at the tip thereof.
The cylinder body is provided with a plurality of slits 16e extending in the longitudinal direction and reaching the insertion holes. A conical portion 18 a is provided at the tip of the lock pin 18. A tapered portion 18b having a diameter smaller than that of the insertion hole is continuously provided at the base end of the conical portion, and a tube pushing wide portion 18c having a diameter larger than that of the insertion hole is continuously provided at the base end of the tapered portion. A minimum diameter portion 18e having a diameter smaller than that of the insertion hole is formed in the cylindrical recess 18d provided subsequent to the base end of the cylindrical expansion portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fixture for detachably attaching a mounting member such as a wire harness to a mounted member such as a panel. More specifically, the present invention relates to a fixture that can be attached to and detached from a member to be attached.

[0002]

[Prior art]

 As a fixture of this type, the present applicant holds a mounting member by a lower tubular portion that can be inserted into a through hole formed in a member to be attached and two flanges that are provided following the upper end of the lower tubular portion. A male and female type plastic rivet in which a tubular hole is formed in a tubular member having an upper tubular portion and a lock pin can be inserted into the tubular hole is filed (Actual Publication No. 2-24115). A female screw thread is formed on the inner peripheral surface of the cylindrical hole of the tubular member of the rivet, and a male screw thread to be engaged with the female screw thread is formed on the outer peripheral surface of the lock pin. At the lower end of the lower cylindrical portion, a small-diameter insertion hole is formed through a tapered tapered hole, and a slit that extends in the longitudinal direction and reaches the insertion hole is formed on the outer peripheral surface thereof. Further, the lock pin has a conical portion formed at its lower end with a larger diameter larger than the diameter of the insertion hole via a tapered portion fitted into the tapered hole and a small diameter shaft fitted into the insertion hole, and the locking pin is abutted at the upper end thereof. A contacting head is formed. When the mounting member is mounted on the mounted member by this rivet, the lock pin is preliminarily assembled to the tubular member so that the conical portion projects from the insertion hole. In this state, insert the lower cylinder into the through hole of the member to be attached, and push the lock pin until its head abuts the collar.The taper of the lock pin spreads the insertion hole, The outer diameter becomes large, and the tubular member does not come out of the through hole of the mounted member. When removing the mounting member from the mounted member, the driver is inserted into the plus or minus groove formed in the head of the lock pin and rotated in the direction of pulling out the lock pin until the small diameter portion is located in the insertion hole. When the small diameter part is located in the insertion hole, the lower cylinder part elastically deforms in the direction of decreasing the inner diameter of the insertion hole, and the outer diameter of the lower cylinder part becomes less than the inner diameter of the through hole of the mounted member. It can be removed from the through hole together with the pin.

[0003]

[Problems to be solved by the device]

 However, with the above rivet, when removing the mounting member from the mounted member, the male screw of the lock pin screwed into the female thread of the tubular member must be rotated in the direction of pulling out the lock pin, which is a relatively difficult work. There was an annoying defect.

An object of the present invention is to easily attach a mounting member to a mounted member without losing the lock pin, and to easily mount the mounting member from the side where the mounting member is mounted. An object of the present invention is to provide a detachable fixture that can be detached from the body and can be used repeatedly as many times as necessary.

[0005]

[Means for Solving the Problems]

 A configuration of the present invention for achieving the above object will be described with reference to FIGS. 1 and 2 corresponding to an embodiment. According to the present invention, a cylinder body 16a having a cylinder hole 16b that can be loosely inserted into the through hole 13a of the mounted member 13 and a diameter larger than the outer diameter of the cylinder body 16a provided at the base end of the cylinder body 16a. A tubular member 16 including a collar 16c, an insertion hole 16d provided at the tip of the tubular body 16a and having a smaller diameter than the tubular hole 16b, and a plurality of slits 16e provided in the longitudinal direction of the tubular body 16a and reaching the insertion hole 16d. A conical portion 18a that can be inserted through the insertion hole 16d through the cylindrical hole 16b, a tapered portion 18b that has a tip that is provided subsequent to the base end of the conical portion 18a and has a smaller diameter than the insertion hole 16d, and a base of the tapered portion 18b. It is constituted by lock pins 18 and 58 which are provided subsequent to the end and which have cylindrical pressing and expanding portions 18c and 58c having a diameter larger than that of the insertion hole 16d, and detachably attach the attaching member 11 to the attached member 13. The fixing is improved. The characteristic structure is that the cylindrical narrowed portion 18d having the smallest outer diameter portion 18e smaller than the insertion hole 16d is provided continuously to the base end of the cylindrical push-opening portion 18c or 58c of the lock pin 18 or 58. is there.

[0006]

[Action]

 When the mounting member 11 is mounted on the mounted member 13, the lock pin 18 or 58 is previously inserted into the cylindrical hole 16b and the insertion hole 16d of the cylindrical member 16 such that the conical portion 18a of the lock pin 18a projects from the insertion hole 16d. . At this time, the tip of the taper portion 18b of the lock pin 18 or 58 is positioned in the insertion hole 16d. In this state, the fixture 12 is wound around the mounting member 11, the cylinder body 16a is loosely inserted into the through hole 13a of the mounted member 13, and the base end of the lock pin 18 or 58 is pushed into the cylinder hole 16b and the insertion hole 16d. The insertion hole 16d is expanded by the taper portion 18b and the cylinder pressing widening portion 18c or 58c, and the outer diameter of the cylinder main body 16a increases, so that the cylinder member 16 does not come off from the through hole 13a of the mounted member 13. Further, when the mounting member 11 is removed from the mounted member 13, the lock pin 18 or 58 is further pushed into the cylindrical hole 16b and the insertion hole 16d, and the minimum outer diameter portion 18e of the cylindrical recess 18d is positioned in the insertion hole 16d. . At this time, the cylinder body 16a is elastically deformed in the direction of decreasing the inner diameter of the insertion hole 16d, and the outer diameter of the cylinder body 16a becomes equal to or smaller than the inner diameter of the through hole 13a of the mounted member 13. It can be removed together with 58 from the through hole 13a. Further, when the tip of the taper portion 18b of the lock pin 18 or 58 is positioned in the insertion hole 16d of the tubular member 16, the fixture 12 can be reused.

[0007]

【Example】

 Next, an embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 to 5, the wire harness 11 which is a mounting member is mounted on the panel 13 which is a mounted member by a clamp 12 which is a fixture (FIG. 1). The clamp 12 is formed of an elastically deformable resin, and has a band 14 wound around the wire harness 11, a cylindrical member 16 integrally provided at one end of the band 14 and having a cylindrical hole 16b and an insertion hole 16d, and a band. A fitting portion 17 integrally provided at the other end of 14 and having a fitting hole 17a capable of being fitted into the cylindrical member 16 and a lock pin 18 which can be inserted into the cylindrical hole 16b and the insertion hole 16d of the cylindrical member 16 (see FIG. 1, FIG. 2 and FIG. 5). The tubular member 16 has a tubular body 16a having a tubular hole 16b with a predetermined bore diameter that is formed so as to be freely inserted into a through hole 13a formed in the panel 13, and an outer diameter of the tubular body 16a provided at the proximal end of the tubular body 16a. A flange 16c having a larger diameter, an insertion hole 16d having a smaller diameter than the cylinder hole 16b provided at the tip of the cylinder body 16a, and a plurality of slits 16e extending in the longitudinal direction of the cylinder body 16a and reaching the insertion hole 16d. And (FIGS. 1, 2, 3, and 5). In this example, four slits 16e are provided on the outer peripheral surface of the cylinder body 16a at equal intervals and parallel to each other (FIG. 4).

The lock pin 18 has a tapered conical portion 18a that can be inserted into the insertion hole 16d through the cylindrical hole 16b, a tapered tapered portion 18b provided following the base end of the conical portion 18a, and a tapered portion 18b. The cylinder pushing-out part 18c provided following the base end is provided. The conical portion 18a is formed such that its base end has a diameter larger than that of the insertion hole 16d and slightly smaller than that of the cylindrical hole 16b. The tapered portion 18b is formed so that its tip has a diameter slightly smaller than that of the insertion hole 16d, and its base end has an outer diameter substantially the same as that of the base end of the conical portion 18a. Further, the cylinder pushing-out portion 18c is formed in a cylindrical shape having the same outer diameter as the base end of the taper portion 18b (FIGS. 1, 2, 3 and 5).

The characteristic construction of this embodiment is that a cylindrical recess 18d having a minimum outer diameter portion 18e smaller than the insertion hole 16d is provided following the base end of the cylindrical push-out portion 18c of the lock pin 18. It's right there. The cylindrical recessed portion 18d is formed in a substantially drum shape, the tip and the base end thereof have the same outer diameter as the cylindrical push-out portion 18c, and the minimum outer diameter portion 18e is formed substantially in the center thereof. A guide portion 18f having the same outer diameter as that of the cylinder pressing portion 18c is continuously provided at the base end of the cylinder narrowing portion 18d (FIGS. 1, 2, 3 and 5).

When the wire harness 11 is attached to the panel 13 by the clamp 12 configured as described above, the lock pin 18 is inserted into the cylindrical hole 16b and the insertion hole 16d of the cylindrical member 16 in a state in which the conical portion 18a protrudes from the insertion hole 16d in advance. And temporarily assemble (Fig. 3). At this time, since the lock pin 18 does not come off from the tubular member 16, the lock pin 18 is not lost, and the tip of the taper portion 18b of the lock pin 18 is located inside the insertion hole 16d, so that the lock pin 18 is not outside the tubular body 18a. The diameter is smaller than the inner diameter of the through hole 13a of the panel 13. In this state, the band 14 of the clamp 12 is wound around the wire harness 11, the cylinder body 16a inserted into the fitting hole 17a at the other end of the band 14 is loosely inserted into the through hole 13a of the panel 13, and the lock pin 18 is inserted. The base end of the guide portion 18f is pushed into the cylindrical hole 16b until the base end surface becomes substantially the same as the end surface of the flange 16c of the cylindrical member 16 (FIG. 1). As a result, the insertion hole 16d is gradually expanded by the taper portion 18b of the lock pin 18, and the edge of the insertion hole 16d is locked by the cylinder expansion portion 18c, so that the outer diameter of the cylinder body 16a is the through hole of the panel 13. 13a, so that the tubular member 16 cannot come out of the through hole 13a. Therefore, the wire harness 11 is securely fixed to the panel 13 by the clamp 12. When the wire harness 11 is removed from the panel 13, the base end of the guide portion 18f of the lock pin 18 is further pushed into the cylindrical hole 16b and the insertion hole 16d (Fig. 5). At this time, the minimum outer diameter portion 18e of the cylindrical recessed portion 18d is located in the insertion hole 16d, and the cylinder body 16a is elastically deformed in the direction of decreasing the inner diameter of the insertion hole 16d. The through holes 13a and below. As a result, when the clamp 12 is pulled in the direction of the solid line arrow in FIG. 5, the cylinder body 16a comes out of the through hole 13a together with the lock pin 18. Further, when the cylinder body 16a is pulled out from the fitting hole 17a at the other end of the band 14, the clamp 12 can be removed from the wire harness 11. When the tip of the tapered portion 18b of the lock pin 18 is returned to the insertion hole 16d of the tubular member 16 of the clamp 12 removed from the wire harness 11, the wire harness 11 is reattached to the panel 13 by the clamp 12. be able to.

In the above-described embodiment, the lock pin is formed in a cylindrical shape as the cylinder pushing-out portion, but this is an example, and as shown in FIG. 6, the lock pin 58 is formed substantially in the center of the cylinder pushing-out portion 58c. You may form the shallow annular recessed groove 58g with which the peripheral edge of 16 d of insertion holes of the cylindrical member 16 latches. Further, in the above embodiment, the wire harness, which is the mounting member, is mounted on the panel, which is the member to be mounted, by the clamp having the band, the tubular member, the fitting hole, and the lock pin. Another panel, bracket, or other attachment member may be attached by a fixture having a member and a lock pin.

[0012]

[Effect of device]

 As described above, according to the present invention, the minimum outer diameter portion having a diameter smaller than the insertion hole at the tip of the barrel body is formed in the barrel recess provided subsequent to the base end of the barrel push-out portion of the lock pin. The mounting member can be easily mounted on the mounted member only by pushing the lock pin into the cylindrical hole and the insertion hole of the cylindrical member. Further, the mounting member can be detached from the mounted member by a simple work of further pushing the lock pin into the cylindrical hole and the insertion hole of the cylindrical member, and the fixing tool can be repeatedly used any number of times. Further, if the lock pin is temporarily assembled so that the tip of the taper portion of the lock pin is positioned in the insertion hole of the tubular member, the lock pin will not be lost.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a wire harness is attached and fixed to a panel by a clamp which is a detachable fixture according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the clamp.

3 is a cross-sectional view taken along the line AA in FIG. 2 showing a state in which a lock pin is inserted into a cylindrical hole and an insertion hole and a conical portion projects from the insertion hole.

FIG. 4 is a sectional view taken along line BB of FIG.

FIG. 5 is a cross-sectional view corresponding to FIG. 1, showing a state immediately before the wire harness is removed from the panel by pushing the lock pin.

FIG. 6 is a sectional view corresponding to FIG. 1, showing another embodiment of the present invention.

[Explanation of symbols]

 11 wire harness (mounting member) 12 clamp (fixing tool) 13 panel (mounting member) 13a through hole 16 cylinder member 16a cylinder body 16b cylinder hole 16c flange 16d insertion hole 16e slit 18, 58 lock pin 18a conical portion 18b taper portion 18c, 58c Cylinder pushing widening part 18d Cylinder narrowing part 18e Minimum outer diameter part

Claims (1)

[Scope of utility model registration request] 1. A cylinder body (16a) having a cylinder hole (16b) which can be loosely inserted into a through hole (13a) of a member to be mounted (13), and is provided at a base end of the cylinder body (16a). A flange (16c) having a diameter larger than the outer diameter of the cylinder body (16a), an insertion hole (16d) provided at the tip of the cylinder body (16a) and having a smaller diameter than the cylinder hole (16b), and the cylinder body ( The insertion hole (16d) provided in the longitudinal direction of 16a)
A tubular member (16) with a plurality of slits (16e) reaching
And a conical portion (18a) that can be inserted into the insertion hole (16d) through the cylindrical hole (16b), and a tip provided subsequent to the base end of the conical portion (18a) is the insertion hole (16d). ) A tapered portion (18b) having a smaller diameter, and the insertion hole provided following the base end of the tapered portion (18b).
(16d) is composed of a lock pin (18, 58) provided with a cylinder push-out portion (18c, 58c) having a larger diameter than that, and the mounting member (11) is detachably mounted to the mounted member (13). In the fixture, the cylindrical recessed portion (18d) having the smallest outer diameter portion (18e) smaller in diameter than the insertion hole (16d) is the base of the cylindrical push-out portion (18c, 58c) of the lock pin (18, 58). A detachable fixture characterized by being provided following the end.