JP2001336509A - Clamp and engaging structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clamp and an engaging structure providing better controllability for disengagement than conventional products. SOLUTION: When the engaging member 21 and the member 23 to be engaged of the clamp 1 are brought into engagement with each other, the engaging member 21 is advanced (lowered) to an engagement position while a guided projection 35 is being guided to the inside (right side) of a guide part 51, so that an engagement pawl 33 is caught by a stepped part 43 to bring the engaging member 21 into engagement with the member 23 to be engaged. To move them out of engagement, the engaging member 21 is further advanced (lowered) to cause the end of the engaging member 21 to slide along a first inclined face 53 and cause the guided projection 35 to escape outside of the guide part 51 upon movement beyond the edge of the guide part,51. Thereafter, the engaging member 21 is moved backward (raised) to guide the guided projection 35 on the outside of the guide part 51 and allow the engagement pawl 33 to pass through the engagement position without being caught by the stepped part 43.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp for holding an object to be held at an annular portion, and an engagement structure employed to make the annular portion of this type of clamp openable.

[0002]

2. Description of the Related Art Conventionally, a clamp described in Japanese Utility Model Publication No. 5-4297 has been known as a clamp for holding an object to be held at an annular portion. According to this clamp
By attaching a clamp on the panel surface of an electric device or on a printed wiring board and bundling and holding multiple cables with the clamp, these multiple cables are routed on the panel surface or on a route along the printed wiring board can do.

[0003]

In the clamp described in the above publication, an engagement structure is provided on a side of an annular portion (electric wire holding portion), and elastic engagement in the engagement structure is provided. When the piece can be easily operated from the side, the operation of releasing the engagement can be performed relatively easily.

However, for example, when a large number of parts are arranged so as to surround the periphery of the clamp, it is difficult to operate the elastic locking piece from the side, so that it is difficult to release the engagement when releasing the engagement. There was a drawback that operability deteriorated.
The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a clamp and an engagement structure in which the operability when releasing the engagement is better than that of a conventional product.

[0005]

Means for Solving the Problems and Effects of the Invention The clamp according to the first aspect of the present invention, which has been made to achieve the above object, can be formed into an annular shape and can hold an object to be held inside the ring. A holding portion and an attachment portion capable of fixing the holding portion at a predetermined attachment position, wherein the holding portion is provided with an engagement member provided at one location and an engaged member provided at the other location. And the engaging member is capable of moving forward / backward relative to the engaged member. When the engaging member is advanced, the engaging member reaches the engaging position when the engaging member reaches the engaging position. A clamp that engages with the engaged member to form the holding portion into an annular shape, and that releases the engagement so that the held object can be taken in and out of the ring-opened portion, wherein the engaging member is configured to be the one-sided member. An extending piece extending from the portion, an engaging claw protruding from the extending piece, A guided projection protruding from a piece, wherein the engaged member is a stepped portion on which the engaging claw is hooked, and the guided member is guided such that the guided projection passes either inside or outside. A guide portion for guiding the protrusion, and when the engaging member is advanced to the engaging position in a state in which the guided protrusion is guided inside the guide portion, the engaging claw is provided with the stepped portion. The engaging member and the engaged member are engaged with each other, and when the engaging member is further advanced from the engagement position, the guided projection is When the engaging member is retracted outside the guide portion beyond the edge, and the engaging member is retracted from this state, the guided projection is guided outside the guide portion, and the engaging claw is set in the step. The extension piece is elastically deformed in a direction away from the attachment portion side, and the engaging claw is Characterized in that it is configured such that a state of not catch on the stepped portion.

[0006] In the above configuration, the forward / backward movement of the engaging member is a term used to define the relative displacement direction of the engaging member with respect to the engaged member. The displacement in the direction in which the engaging members approach each other from the separated state and eventually become partially overlapped, and retreat means that a part of the engaging member and a part of the engaged member overlap. This refers to a displacement from the state to a direction in which the engagement member and the engaged member are finally separated from each other.

The material forming the clamp has rigidity enough to maintain the state of holding the object to be held and elasticity enough to engage and disengage while elastically deforming the engaging member and the engaged member. Although it is not particularly limited as long as it is a molded article, a molded article using a synthetic resin material is generally used.

In this clamp, when the engaging member is engaged with the engaged member, the engaging member is advanced to the engaging position with the guided projection guided inside the guide portion. The engaging claw is hooked on the stepped portion, and the engaging member and the engaged member are engaged. On the other hand, when the engagement member is disengaged from the engaged member, if the engagement member is further advanced from the above-described engagement position, the guide portion is moved beyond the edge of the guide portion. Escape outside. At this point, the engagement is released, and thereafter, when the engaging member is retracted, the guided projection is guided outside the guide portion, and accordingly, the engaging claw is stepped. The extending piece is elastically deformed in a direction away from the part side, and passes through the engaging position without the engaging claw being caught by the stepped part.

That is, the operation of moving the engaging member forward is performed regardless of whether the engaging member and the engaged member are engaged or the two members are disengaged. According to the clamp configured as described above, in the operation in a single direction of moving the engagement member forward, the engagement operation and the disengagement operation can be performed only by adjusting the operation amount, Operability is better than an engagement structure that requires operation in a direction other than forward / backward.

Therefore, when releasing the engagement,
For example, it is not necessary to perform an operation of pulling the engaging member in a direction orthogonal to the forward / reverse direction, and even if any part is disposed in such a direction, the obstacle hinders the disengagement operation. And the operability when attaching and detaching the held object is improved.

Next, in the clamp according to the second aspect, when the engaging member is further advanced from the engagement position, the guided projection of the guide portion is further moved as the engaging member advances. It is characterized in that it is configured to slide along a first inclined surface having an inclination to displace outward.

According to this clamp, when the engaging member is advanced, the engaging member slides along the first inclined surface, whereby the extension piece is elastically deformed, and the guided projection is guided. Displaced gradually toward the outside of the part. Therefore, the guided protrusion is smoothly displaced toward the outside of the guide portion as compared with the case where the engagement member is not guided along the inclined surface, so that the operation of releasing the engagement becomes easier.

[0013] Next, in the clamp according to the third aspect, when the guided member is retracted after the guided projection is detached to the outside of the guide portion, the guided projection is so retracted that the guided member retreats. It is characterized in that the engaging claw slides along a second inclined surface having an inclination to displace the engaging claw away from the stepped portion.

According to this clamp, if the engaging member is retracted after the guided projection has come out of the guide portion, the guided projection slides along the second inclined surface, and accordingly, extends. The engaging claw is gradually displaced in a direction away from the stepped portion while the protrusion is elastically deformed. Therefore, as compared with the case where the guided protrusion is not guided along the inclined surface, the engagement claw is smoothly displaced in the direction away from the stepped portion, and the operation of releasing the engagement is facilitated.

Next, an engaging structure according to a fourth aspect of the present invention comprises an engaging member provided at one location and an engaged member provided at the other location. When the engaging member is advanced, the engaging member engages with the engaged member when the engaging member reaches the engaging position, and cannot be retracted. On the other hand, it is an engagement structure that can be retracted when the engagement is released,
The engagement member has an extension piece extending from the one portion, an engagement claw protruding from the extension piece, and a guided projection protruding from the extension piece. The engaged member has a stepped portion on which the engaging claw is hooked, and a guide portion for guiding the guided projection so that the guided projection passes either inside or outside; When the engagement member is advanced to the engagement position in a state where the guide protrusion is guided inside the guide portion, the engagement claw is hooked on the stepped portion, and the engagement member is engaged with the engagement member. When the engaging member is further advanced from the engaging position, the guided projection is disengaged to the outside of the guide portion beyond the edge of the guide portion. When the engaging member is retracted from this state, the guided projection is guided outside the guiding portion. State, wherein the engaging claw is configured to be elastically deformed in a direction away from the stepped portion side, so that the engaging claw does not catch on the stepped portion. Features.

In the above construction, the forward / backward movement of the engaging member is a term used to define a relative displacement direction of the engaging member with respect to the engaged member. Same as the rule. According to the engagement structure thus configured, since it is configured in the same manner as the engagement structure provided in the clamp according to the first aspect, the operation is the same as that of the clamp according to the first aspect. It works.

Therefore, in the clamp for holding the object to be held at the annular portion, if this engagement structure is adopted to make the ring openable, the operability when attaching and detaching the object to be held is improved. Become. In addition, this engagement structure can be adopted to something other than the clamp, and in that case, in the operation in a single direction of advancing the engagement member, only by increasing or decreasing the operation amount, the engagement operation can be performed. And an engagement release operation can be performed, so that the operability is better than an engagement structure that requires an operation in a direction other than forward / retreat.

[0018]

Next, an embodiment of the present invention will be described with reference to an example. In the following description,
Using the directions of up, down, left, right, front and back, which are also shown in FIG. 1, the relative positional relationship and the like of the clamps are specified, but this is only one means for making the structure of the clamps easy to understand. It does not define the absolute arrangement direction of the clamp at the place where the top, bottom, left, right, front and back are specified.

The clamp 1 shown in FIG. 1 includes a holding portion 3 capable of holding cables and a mounting portion 5 provided below the holding portion 3, and these are integrally formed of synthetic resin. The holding unit 3 includes a base 11 extending in the left-right direction,
A right side wall 13 protruding upward from the right end of the base 11,
Thin hinge portion 15 provided at the upper end of right side wall portion 13
And a pressing plate 17 provided to be swingable with respect to the right side wall portion 13 via the hinge portion 15. Further, the holding portion 3 is protruded from the free end of the holding plate 17, and when the holding plate 17 is made horizontal, the engaging member 21 whose tip is directed downward is provided.
And the engaged member 2 projecting upward from the left end of the base 11.
3 and is formed into a ring shape by engaging the engaging member 21 with the engaged member 23.

As shown in FIG. 2, the engaging member 21 includes an extension piece 31 extending from the holding plate 17, an engagement claw 33 projecting from the tip of the extension piece 31, and And a guided projection 35 projecting from the tip of the piece 31.
When the holding plate 17 is leveled, the tip of the extension piece 31 faces downward, the engaging claw 33 projects rightward, and the guided projection 35 projects rearward. Further, the engagement member 21
Has a positioning protrusion 37 that protrudes in the same direction as the engagement claw 33, as shown in FIG.

As shown in FIG. 2, the engaged member 23 has a left side wall 41 protruding upward from the left end of the base 11, and the engaging claw 33 is hooked on the left side surface of the left side wall 41. A stepped portion 43 is formed. A recess 45 into which the positioning protrusion 37 is fitted is formed behind the stepped portion 43.
Further, a connecting portion 47 extending further to the left is provided at a position on the left side of the left side wall portion 41 near the rear. The connecting portion 47 is provided with a hole 49, and the connecting portion 4
A guide portion 51 is provided to project forward from the left end of 7. A first inclined surface 53 is formed below the stepped portion 43 on the left side surface of the left wall portion 41, and a second inclined surface 55 is formed at the lower end of the guide portion 51.

On the other hand, the mounting portion 5 includes a column 61 projecting downward from the center of the lower surface of the base 11, and a pair of right and left extending from the lower end of the column 61 so as to be folded obliquely left and right. A check piece 63, an elastic connecting piece 65 connecting the upper end of each check piece 63 and the vicinity of the base of the column 61, and an elastic support piece 67 extending obliquely downward from both left and right sides near the base of the column 61. It has.

The clamp 1 configured as described above is attached to, for example, a panel of an electric device by the attaching portion 5. Specifically, a through hole is formed in advance at a mounting position on the panel, and when the support column 61 and the check piece 63 are pushed into the through hole, the check piece 63 is formed on the inner peripheral surface of the through hole. When pressed, the check piece 63 is elastically deformed, and the gap between the column 61 and the check piece 63 is reduced. In this state, the column 61 and the check piece 6
When 3 passes through the through hole, the deformed check piece 63 returns to its original shape, the gap between the column 61 and the check piece 63 expands, and the check piece 63 stops. In this state, the elastic connecting piece 65 contacts the inner peripheral surface of the through hole to suppress rattling in the front-rear and left-right directions (that is, the direction intersecting the axial direction of the through hole). The base 11 is lifted from the panel side by the elastic force generated by the elastic deformation, and the play in the vertical direction (that is, the axial direction of the through hole) is suppressed.

Next, the operation of engaging and disengaging the clamp 1 will be described. 4 (a) and 4 (b), the guided protrusion 35 is hidden by the extension piece 31 and is not visible.
The area where the guided projection 35 exists is shaded.

In this clamp 1, when the engaging member 21 and the engaged member 23 are engaged, the guided projection 35
Is guided inside the guide portion 51 (the right side in the illustrated direction), and the engaging member 21 is moved forward (downward in the illustrated direction) to the engagement position. Then, the engagement claw 33
Is hooked on the stepped portion 43, and the engaging member 21 and the engaged member 23 are engaged (see FIG. 4A).

On the other hand, when the engagement between the engagement member 21 and the engaged member 23 is released, the engagement member 2 is moved from the engagement position described above.
Advance 1 further. Then, the tip of the engaging member 21 slides along the first inclined surface 53, and accordingly, the extension piece 3
The guided projection 35 is gradually displaced toward the outside (the left side in the illustrated direction) of the guide portion 51 while the elastic deformation 1 occurs. Further, since the guided protrusion 35 is only slightly hooked on the edge (the lower end in the illustrated direction) of the guide portion 51, the guided portion 35 is slightly displaced and the guide portion 5 is displaced.
1 at which point the guided projection 35 is
(See FIG. 4B).

At this point, the engagement has been released.
Thereafter, when the engaging member 21 is retracted (increased in the illustrated direction), the guided projection 35 slides along the second inclined surface 55, and the extension piece 31 elastically deforms accordingly. While
The engaging claw 33 is gradually displaced away from the stepped portion 43. Then, the guided protrusion 35 is guided outside the guide portion 51, and the engaging member 21 retreats while the extending piece 31 is elastically deformed in a direction in which the engaging claw 33 is separated from the stepped portion 43 side, The engaging claw 33 passes through the engaging position without being caught by the stepped portion 43.

As described above, the engaging member 21 and the engaged member 2
In both cases of engaging the third member 3 and disengaging the two, the operation of moving the engaging member 21 forward is performed. According to the clamp configured as described above, in the operation in the single direction of moving the engagement member 21 forward, the engagement operation and the disengagement operation can be performed only by adjusting the operation amount. The operability is better than that of an engagement structure that requires operation in a direction other than forward / backward.

Therefore, when releasing the engagement,
For example, it is not necessary to perform an operation of pulling the engaging member 21 in a direction orthogonal to the forward / retreat direction, and even if any part is disposed in such a direction, the obstacle hinders the disengagement operation. It does not become an object, and the operability when attaching and detaching the held object is improved.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described specific embodiment.
The present invention can be implemented in various other modes. For example, in the above embodiment, the clamp 1 has been described in detail, but the engagement structure may be provided on a member other than the clamp.

[Brief description of the drawings]

FIG. 1 is a perspective view of a clamp described as an embodiment of the present invention.

FIG. 2 is a perspective view showing an engagement structure of the clamp.

FIG. 3 is a perspective view when the engaging member is viewed from another direction.

FIG. 4A is a schematic view showing an engagement state of an engagement structure;
(B) is a schematic diagram showing a disengaged state of the engagement structure.

[Explanation of symbols]

1 ... clamp, 3 ... holding part, 5 ... mounting part,
11 ... base part, 13 ... right side wall part, 15 ... hinge part, 17 ... holding plate, 21 ... engagement member, 23
... engaged member, 31 ... extension piece, 33 ... engagement claw, 35 ... guided projection, 37 ... positioning projection,
41 ... left wall part, 43 ... stepped part, 45 ... concave part, 47 ... connecting part, 49 ... hole, 51 ... guide part, 53 ... first inclined surface , 55 ... second inclined surface, 6
1 ... Support, 63 ... Check piece, 65 ... Elastic connecting piece, 67 ... Elastic support piece.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H05K 7/00 H02G 3/26 EF term (Reference) 3H023 AA04 AA05 AB02 AC08 AC13 AC21 AD18 AD22 AD54 AE08 3J022 DA11 EA32 EB14 EC14 EC22 ED28 FA05 FB07 FB12 FB24 GA06 GA16 GB27 4E352 AA01 BB04 CC01 CC40 CC43 CC52 CC56 DD05 DR02 DR18 DR19 DR26 EE03 FF11 GG12 5G363 AA16 BA01 DA13 DA15

Claims (4)

[Claims] 1. A holding portion which is formed in an annular shape and which can hold an object to be held inside the ring, and a mounting portion which can fix the holding portion at a predetermined mounting position, wherein the holding portion has one side. And an engaged member provided at the other position, wherein the engaging member is capable of moving forward / backward relative to the engaged member. When the engaging member is advanced, the engaging member engages with the engaged member when the engaging member reaches the engaging position to form the holding portion in an annular shape. A clamp that allows the object to be held in and out freely, wherein the engaging member includes an extending piece extending from the one portion; an engaging claw protruding from the extending piece; A guided projection protruding from one piece, wherein the engaged member is a stepped portion on which the engaging claw is hooked;
A guide portion for guiding the guided projection so that the guided projection passes through either the inside or the outside; and wherein the engagement member is in a state where the guided projection is guided inside the guide portion. Is advanced to the engagement position, the engagement claw is hooked on the stepped portion so that the engagement member and the engaged member are engaged with each other. When the engaging member is further advanced, the guided protrusion comes off the guide portion beyond the edge of the guide portion, and when the engaging member is retracted from this state, the guided protrusion is A state in which the engaging claw is guided outside the guide portion, and the extending piece is elastically deformed in a direction in which the engaging claw separates from the stepped portion side, is in a state where the engaging claw is not caught by the stepped portion. The clamp characterized by being comprised as follows. 2. When the engagement member is further advanced from the engagement position, the inclination of the engagement member is such that the guided projection is displaced outward of the guide portion as the engagement member advances. The clamp according to claim 1, wherein the clamp is configured to slide along a first inclined surface of the clamp. 3. When the guided member is retracted to the outside of the guide portion and the engaging member is retracted, the engaging claw is moved from the stepped portion as the guided projection is retracted. The clamp according to claim 1 or 2, wherein the clamp slides along a second inclined surface having an inclination to displace in a direction away from the clamp. 4. An engaging member provided at one position and an engaged member provided at the other position, wherein the engaging member moves forward relative to the engaged member. When the engaging member is moved forward, the engaging member engages with the engaged member and cannot be retracted when the engaging member reaches the engaging position, but can be retracted when the engaging member is released. An engaging structure, wherein the engaging member extends from the one portion, an engaging claw protruding from the extending piece, and a protruding member from the extending piece. A guided projection, wherein the engaged member is a stepped portion where the engaging claw is caught,
A guide portion that guides the guided projection so that the guided projection passes through either the inside or the outside; and wherein the guided member guides the inside of the guiding portion, the engagement member Is advanced to the engagement position, the engagement claw is hooked on the stepped portion so that the engagement member and the engaged member are engaged with each other. When the engaging member is further advanced, the guided protrusion comes off the guide portion beyond the edge of the guide portion, and when the engaging member is retracted from this state, the guided protrusion is A state in which the engaging claw is guided outside the guide portion, and the extending piece is elastically deformed in a direction in which the engaging claw separates from the stepped portion side, is in a state where the engaging claw is not caught by the stepped portion. An engagement structure characterized by being configured as described above.