JPH0547672U - Fastener - Google Patents

Abstract

(57) [Summary] [Purpose] The structure is such that the lock can be repeatedly engaged and disengaged at the lock part. [Structure] When the knobs of a pair of arms 10A and 10B that are elastically deformed and rotate with a substantially intermediate connecting portion as a fulcrum are gripped and pulled toward each other, the pair of arms 10A and 10A
The arms 10A and 10B are rotated respectively.
The lock claw 12 formed in the above is disengaged from the engagement recess 17 on the second ring half body 4 side so that the engagement lock can be released.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fastener for mooring wiring cables, piping, etc. in a vehicle or a home electric appliance at a predetermined position.

[0002]

[Prior Art]

 Conventionally, various fasteners of this kind have been proposed. FIG. 5 is a perspective view showing an example of a conventional fastener in use, and FIG. 6 shows a lock mechanism portion of the fastener.

In FIGS. 5 and 6, the fastener 50 is made of a resin material, and a hinge portion 51, a first ring half body 52, and a second ring half body 53 are integrally formed. Of these, the hinge portion 51 is formed by thinning it. On the other hand, the first ring half body 52 and the second ring half body 53 are each formed in a shape in which the ring is divided in half. These two ring halves 52, 53 are rotatably connected to each other at one end with the hinge portion 51 as a fulcrum, and when they are butted with each other, they form one ring body. The wiring cable 54 can be moored. In addition, between the other end side of the first ring half body 52 and the other end side of the second ring half body 53, a pair of removable lock claws that engage and lock when pushed into each other. A lock mechanism 55 having parts 56 and 57 is provided.

One of the lock claws 56 of the lock mechanism 55 is a concave groove 60 formed by a pair of standing walls 58 and 59, and protrudes into the concave groove 60 from the side of the standing walls 58 and 59, respectively. It is composed of locking claws 56a and 56b. Each lead surface 56c (see FIG. 6) of each locking claw 56a, 56b is formed as an inclined surface that gradually protrudes inward as it goes from the upper opening of the concave groove 60 to the bottom wall side. There is.

On the other hand, the other locking claw 57 includes a protrusion 61 that can be inserted into the concave groove 60 of the one locking claw 56, and locking claws 56 a and 56 b of the one locking claw 56. Corresponding to each of them, it is composed of locking claws 57a and 57b formed at the tip of the projecting piece 61. Further, each lead surface 57c (see FIG. 6) of each locking claw 57a, 57b is formed as an inclined surface that gradually inwards as it goes to the tip side.

Next, the operation of the fastener 50 will be described. First, before the wiring cable 54 is moored, the lock claws 56 and 57 of the lock mechanism 55 are disengaged from each other. Therefore, the second ring half body 53 is rotatable with respect to the first ring half body 52 with the hinge portion 51 as a fulcrum. Then, the second ring half body 53 is rotated and opened in the direction of arrow K in FIG. 5, and the wiring cable 54 is arranged between the first ring half body 52 and the second ring half body 53. After that, the second ring half body 53 is rotated by the first ring half body 52 side, that is, in the direction of arrow M in FIG. Then, immediately before the second ring half body 53 is closed, the inclined surfaces 57c of the locking claws 57a and 57b of the lock claw portion 57 contact the inclined surfaces 56c of the locking claws 56a and 56b of the lock claw portion 56. .. When the lock claw 56 is strongly pushed toward the lock claw 57 in this state, the standing wall 58 is elastically deformed toward the arrow N side in FIGS. 5 and 6 due to the shapes of the inclined surface 57c and the inclined surface 56c. Be defeated. Then, the recessed groove 60 expands as shown by the alternate long and short dash line in FIG. 6, whereby the insertion of the lock claw portion 57 is allowed. In this way, the lock claw 57 is inserted into the lock groove 60, and when the locking claws 57a and 57b have finished passing through the locking claws 56a and 56b, they have been elastically deformed and fallen outward. The standing wall 58 self-returns to the inside (the arrow R side in FIGS. 5 and 6). Then, as shown by the solid line in FIG. 6, the engagement between the locking claws 56a, 56b and the locking claws 57a, 57b is formed, and the engagement locking state is established. This completes the mooring of the distribution cable 54 to the fastener 50. Then, the fastener 50 with the wiring cable 54 moored in this manner is attached with the station 62 fixed with a screw or the like at a predetermined position in a vehicle, a home electric appliance or the like.

On the other hand, when the mooring of the wiring cable 54 with respect to the fastener 50 is released, the standing wall 58 of the locking claw portion 56 is elastically deformed by strongly prying it with a finger or a tool, and this deformation causes the standing wall 58 to be deformed. Tilt to the arrow N side in FIG. Then, the engaging claws 56a, 56b and the engaging claws 57a, 57b are disengaged, and in this state, the second ring half body 53 is rotated upward. Then, the lock claw portion 57 can be removed from the lock claw portion 56, whereby the wiring cable 54 can be removed from the fastener 50.

Therefore, in this fastener 50, by engaging and disengaging the lock claw portions 56 and 57, the first ring half body 52 and the second ring half body 53 are repeatedly engaged and disengaged many times. Can be used.

[0009]

[Problems to be solved by the device]

 However, in the above-described conventional fastener 50, when the lock claws 56 and the lock claws 57 are disengaged, the standing wall 58 of the lock claw 56 is strongly squeezed with a finger or a tool, and the arrow in FIG. Since the second ring half body 53 must be rotated upward in a state in which it is elastically deformed in the D direction and is tilted down to disengage the engagement between the locking claws 56a and 56b and the locking claws 57a and 57b. However, it is not possible for an operator to easily perform the unlocking operation with one hand or the like. For this reason, there are problems such as being unsuitable for a site that is frequently unlocked due to maintenance or the like, and limiting the site to be used.

The present invention has been made in view of the above problems, and an object thereof is to provide a fastener having a structure capable of repeatedly engaging and disengaging a lock in a lock portion.

[0011]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has a pair of lock claws, one of which is pushed into the other to be engaged and locked with each other, and the one lock claw is provided on the side of the first ring half and A resin fastener in which the other lock claw portion is provided on the second ring half body side, wherein the lock claw portion on the first ring half body side is the lock claw portion on the second ring half body side. A pair is provided corresponding to both sides sandwiching, and each of the lock claw portions on the side of the first ring half is formed by an arm that is elastically deformed and rotatable about a substantially intermediate portion as a fulcrum. A lock pawl that engages with the lock pawl portion on the side of the second ring half is provided on one end side of the arm, and a knob portion is provided on the other end side. Each knob of the arm in the pair of lock pawl portions is provided. Pinch each other Attract the one in which the pair of arms have configured as locking pawl of the is rotated first-ring half side is disengaged from the locking claw portion of the second ring-half side.

[0012]

[Action]

 According to this configuration, when the knobs of the pair of arms are pinched with fingers while the pair of lock claw portions are engaged and locked, the lock claws on the first ring half body side move to the second ring half body side. By disengaging from the lock claws, the engagement lock of the pair of lock claws can be easily released. On the other hand, when the pair of lock claws are engaged and locked, it is sufficient to push one of the lock claws into the other lock claw. Therefore, when the engagement is locked, only one of the lock claws needs to be pushed into the other lock claw, and when the engagement lock is released, it can be released simply by pinching the knob with the finger of one hand.

[0013]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing a fastener according to an embodiment of the present invention in use, FIG. 2 is a side view thereof, FIG. 3 is a perspective view thereof, and FIG. It is a disassembled perspective view which expands and shows.

In FIGS. 1 to 4, the fastener 1 is made of a resin material, and the hinge portion 2, the first ring half body 3 and the second ring half body 4 are integrally formed. Of these, the hinge portion 2 is formed by thinning it. On the other hand, the first ring half body 3 and the second ring half body 4 are each formed in a shape obtained by dividing the ring into halves. These two ring halves 3 and 4 are in a state in which one ends thereof are rotatably connected to each other with the hinge portion 2 as a fulcrum, and when they are butted with each other, they form one ring body, The wiring cable 5 can be moored in this ring body. On the other hand, on the other end side of the first ring half body 3 and the other end side of the second ring half body 4, there are provided a pair of releasable lock claw portions 6 and 7 which are engaged and locked when they are pushed into each other. A lock mechanism 8 is provided.

One of the lock claws 6 of the lock mechanism 8 has a tongue piece 9 extending substantially at a right angle from the outer peripheral surface on the other end side of the first ring half body 3. A pair of arms 10A and 10B are provided on both the left and right sides of 9, extending vertically. More specifically, the pair of arms 10A and 10B are provided so as to be offset from each other in the front-rear direction, and a dimension T is provided between the surfaces 10a and 10a that effectively face each other, as shown in FIG. .. Further, a connecting portion 11 (see FIG. 4) is integrally provided in each of the substantially middle portions of the arms 10A and 10B, and is in a state of being integrally formed with the tongue piece 9 via the connecting portion 11. .. The arms 10A and 10B can swing in the left-right direction with the elastic deformation of the connecting portion 11 with the connecting portion 11 serving as a fulcrum. In addition, locking claws 12 are integrally formed on the upper ends of the arms 10A and 10B. The locking claws 12 of the arms 10A and 10B are provided on the surfaces 10a that effectively face each other as described above in a state that they also effectively face each other. Further, the guide surface 12a (see FIG. 4) of each locking claw 12 is formed as an inclined surface that protrudes outward as it goes to the lower side of the arms 10A and 10B. On the other hand, plate-like knobs 13 are integrally formed on the lower end sides of the arms 10A and 10B, respectively, and the knobs 13 of the arms 10A and 10B are pinched by fingers at the same time (FIG. 1, FIG. 3, the arm 10A, 10B can be swung with the portion of the connecting portion 11 as a fulcrum when pushed in the direction of arrow F in FIG.

On the other hand, the other lock claw portion 7 has a tongue piece 15 extending substantially at a right angle from the outer peripheral surface on the other end side of the second ring half body 4. A block-shaped projecting piece 16 extending downward from the lower surface is provided between the pair of arms 10A and 10B of the one lock claw portion 6 in a corresponding manner. More specifically, the thickness dimension t (see FIG. 4) of the protruding piece 16 in the front-rear direction is equal to or slightly smaller than the dimension T between the pair of arms 10A and 10B, and the width dimension d on the left and right sides. (See FIG. 4) is formed to be substantially equal to the outer dimension D (see FIG. 1) of the pair of arms 10A and 10B. Further, at the front and rear surfaces corresponding to the locking claws 12 formed on the pair of arms 10A and 10B, there are provided engagement recesses 17 capable of engaging and locking with the locking claws 12. Further, at a position corresponding to the guide surface 12a of the locking claw 12, as a guide surface 16a for guiding the locking claw 12 to the engaging recess 17, the position gradually increases from the engaging recess 17 side toward the lower end side. An inclined surface is formed so that the depth of cut increases.

Next, the operation of the fastener 1 will be described. First, before the wiring cable 5 is moored, the lock claw portions 6 and 7 of the lock mechanism 8 are disengaged from each other, and the second ring half body 4 as shown by the one-dot chain line in FIG. Is in a state of being opened by being rotated in the direction of arrow O in the figure with the hinge portion 2 as a fulcrum. Then, after arranging the wiring cable 5 on the first ring half body 3, the second ring half body 4 is rotated by the first ring half body 3 side, that is, in the direction of arrow S in FIG. It Then, immediately before the second ring half body 4 is closed, the guide surface 12a of the lock claw portion 6 and the guide surface 16a of the lock claw portion 7 come into contact with each other. Further, when both lock claws 6 and 7 are strongly pressed in this state, the pair of arms 10A and 10B are elastically deformed in the direction of arrow H in FIG. The protruding piece 16 is inserted between the arms 10A and 10B. When this insertion progresses and the locking claw 12 corresponds to the engagement recess 17, the pair of arms 10A and 10B, which had been tilted in the direction of arrow H by elastic deformation until then, are self-returned and engaged in the engagement recess 17. The pawl 12 is engaged and locked. 1 and 2 are shown by solid lines, and FIG. 3 shows this engagement locked state. This completes the mooring of the wiring cable 5 to the fastener 1. Then, the fastener 1 with the wiring cable 5 moored in this manner is attached with the stay 18 fixed to a predetermined position in a vehicle, a home electric appliance or the like with a screw or the like.

On the other hand, when the mooring of the wiring cable 5 with respect to the fastener 1 is released, the knobs 13 of the pair of arms 10A and 10B in the lock claw portion 6 are pinched with fingers, and as shown in FIG. 1, FIG. 3 and FIG. Press strongly in the direction indicated by arrow F. Then, the pair of arms 10A and 10B rotate about the connecting portion 11 as a fulcrum so that the locking claw 12 side opens outward, as shown by the alternate long and short dash line in FIG. It comes off from the fitting recess 17. As a result, the engagement locking state between the lock claw portion 6 and the lock claw portion 7 is released, the second ring half body 4 is opened, and the wiring cable 5 can be removed from the fastener 1.

Therefore, according to the structure of this embodiment, when the engagement is locked, the engagement lock state can be obtained by simply pushing the projecting piece 16 of the lock claw portion 7 between the pair of arms 10A and 10B of the lock claw portion 6. On the contrary, when releasing the engagement lock, conversely, the knobs of the pair of arms 10A and 10B can be easily released by pinching the knobs from both sides, and this can be repeatedly used.

In the above embodiment, the case where the wiring cable 5 is moored has been described, but it goes without saying that it may be applied to other than this.

[0021]

[Effect of the device]

 As described above, according to the fastener of the present invention, it is sufficient to push one lock claw portion into the other lock claw portion at the time of engagement lock, and at the time of releasing the engagement lock, the knob of one hand is used. Since it can be released just by pinching, it has excellent operability and can be expected to be applied to areas where lock release is frequently repeated for maintenance.

[Brief description of drawings]

FIG. 1 is a schematic front view of a fastener according to an embodiment of the present invention in use.

FIG. 2 is a side view of the fastener shown in FIG.

FIG. 3 is a schematic perspective view of the fastener shown in FIG.

FIG. 4 is an exploded perspective view showing a partially enlarged main structure of the fastener shown in FIG.

FIG. 5 is a perspective view showing an example of a conventional fastener in a use state.

FIG. 6 is an enlarged side view of an essential part of the fastener shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Fastener 2 ... Hinge part 3 ... 1st ring half body 4 ... 2nd ring half body 6 ... Lock claw part 7 ... Lock claw part 8 ... Lock mechanism 10A ... Arm 10B ... Arm 12 ... Locking claw 13 … Knob

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H02G 3/26 P 7335-5G

Claims (1)

[Scope of utility model registration request] 1. A pair of lock claws, one of which is pushed into the other to be engaged and locked with each other, wherein the one lock claw is provided on the side of the first ring half and the other lock claw is In a resin fastener provided on the side of the second ring half, the lock claws on the side of the first ring half are made to correspond to both sides of the lock claw on the side of the second ring half. A pair is provided, and each of the lock claw portions on the first ring half body side is formed by an arm that is elastically deformed and rotatable about a substantially intermediate portion as a fulcrum, and the second end is provided on one end side of the arm. Locking pawls to be engaged with the locking pawls on the ring half body side are provided with knobs on the other end side, respectively. The arm of the ring is rotated, and the lock claw on the side of the first ring half is moved to the second side.
A fastener characterized in that it is configured to be disengaged from the lock claw portion on the ring half body side.