JP6659319B2 - Clamp - Google Patents

Description

  The present invention relates to a clamp.

  A clamp for fixing a wire harness or the like to an object to be fixed (fixed member) is known. As described in Patent Document 1, for example, this type of clamp includes a support portion to be attached (base portion), a support portion (insertion portion) protruding from the support portion to be attached, and the support portion. An engaging portion protruding from the portion and a support flange (pressing portion) protruding from the support portion to be fastened are configured to be fixable to the fastening object.

  That is, the clamp inserts the support portion into a through-hole provided in the object to be fastened, and in the inserted state, engages the engaging portion with a peripheral portion of the through-hole to be fastened. By pressing the supporting flange against the peripheral edge of the through hole while bending the supporting flange, the object to be fixed is elastically sandwiched by the engaging portion and the supporting flange, whereby the object to be fixed can be fixed to the object to be fixed. I have.

JP 2009-299851 A

  In such a clamp, the engaging portion has a constant narrow width over the entire length in the protruding direction in consideration of the ease of inserting the support portion and the engaging portion into the through hole to be fastened. Was. Therefore, when the engagement portion is fixed to the fastening target (peripheral portion of the through hole), an engagement region (the engagement portion and the (The area of engagement with the fastening target) was small. Therefore, in this case, when the clamp receives a large load, the clamp cannot be maintained using the engagement area so as not to incline as much as possible with respect to the fastening target, and is largely tilted. In some cases, the stability of the fixed state of the clamp was impaired.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a clamp that can suppress inclination with respect to the fixing member when the clamp is attached to the fixing member.

The invention according to claim 1 is
A clamp that can be fixed to a fixing member,
A base part,
An insertion portion protruding from the base portion so that the insertion portion can be inserted into a through hole provided in the fixing member;
An engagement portion elastically deformably projecting from the insertion portion so as to be able to be inserted into the through hole together with the insertion portion and to be able to engage with the fixing member after being inserted into the through hole;
And a pressing portion protruding from the base portion so that the fixing member can be sandwiched by the engaging portion engaged with the fixing member.
The engagement portion,
A protruding direction tip end that can contact the fixing member,
A projecting direction base end portion connected to the insertion portion.
The front-end front-back width of the protruding-direction leading end that contacts the fixing member is wider than the front-rear width of the protruding-direction base end, and the protruding-direction front end is front-rear to the protruding-direction base end of the insertion portion. It is enlarged on both front and rear sides to the width . (However, this does not apply to cases where the width of the insertion portion exceeds the front-rear width of the base end in the protruding direction.)

  According to this configuration, by inserting the insertion portion and the engagement portion into the through-hole, a state where the fixing member is sandwiched between the protruding direction distal end portion of the engagement portion and the pressing portion is maintained. The clamp can be fixed to the fixing member. Moreover, in the clamp, the wide shape provided on the tip end side of the engaging portion in the protruding direction of the engaging portion allows the engaging region where the engaging portion engages with the fixing member (between the engaging portion and the fixing member). (Engagement area) can be increased. Therefore, when the clamp receives a large load when fixed to the fixing member, the clamp can be firmly supported by using the engagement area, and the inclination of the clamp with respect to the fixing member can be suppressed. As a result, the stability of the fixed state of the clamp with respect to the fixing member can be favorably maintained.

The invention according to claim 2 is the clamp according to claim 1,
The engaging portion has a divergent shape that increases in width from the base end in the protruding direction to the front end in the protruding direction .

The invention according to claim 3 is the clamp according to claim 1,
The engaging portion has a stepped shape that gradually increases in width from the base end in the protruding direction to the front end in the protruding direction .

According to a fourth aspect of the present invention, in the clamp according to any one of the first to third aspects,
And a sealing member having flexibility and configured to seal between the holding portion and the fixing member formed in an annular shape when the fixing member is fixed to the fixing member.

  ADVANTAGE OF THE INVENTION According to this invention, the clamp which can suppress inclination with respect to the said fixing member at the time of attachment to a fixing member can be provided.

It is the figure which looked at an example of the state at the time of use of the clamp concerning a 1st embodiment of the present invention from the front side. FIG. 2 is a perspective view of the clamp of FIG. 1. It is a front view of the clamp of FIG. FIG. 2 is a side view of the clamp of FIG. 1. FIG. 2 is a bottom view of the clamp of FIG. 1. It is the figure which looked at an example of the state at the time of use of the clamp of FIG. 1 from the side. It is a front view of a clamp concerning a 2nd embodiment of the present invention. It is a side view of the clamp concerning 2nd Embodiment of FIG. FIG. 8 is a side view of an example of a state when the clamp of FIG. 7 is used. It is a side view of a clamp concerning a 3rd embodiment of the present invention.

  A first embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating an example of a state when the clamp 1 according to the first embodiment of the present invention is used as viewed from the front side. FIG. 2 shows a perspective view of the clamp 1. FIG. 3 shows a front view of the clamp 1. FIG. 4 shows a side view of the clamp 1. FIG. 5 shows a bottom view of the clamp 1. FIG. 6 shows a side view of an example of a state when the clamp 1 is used.

  In the following description, the direction indicated by the arrow X in FIG. 2 is defined as the front direction of the clamp 1, the direction indicated by the arrow Y is defined to the right of the clamp 1, and the direction indicated by the arrow Z is defined above the clamp 1. Direction.

  As shown in FIG. 1, the clamp 1 is configured to be fixable to a fixing member 2 such as a panel, and can be used to fix a fixing target 3 such as a wire harness to the fixing member 2. The clamp 1 is used together with a holding member (the binding band 4 in this case) corresponding to the fixed object 3, and is attached to the holding member holding the fixed object 3 at the time of fixing to the fixed member 2. Can be maintained.

  As shown in FIGS. 2, 3, 4, and 5, the clamp 1 includes a base portion 11, an insertion portion 12, an engagement portion 13, and a holding portion 14. In the present embodiment, the clamp 1 is a resin molded product in which the base portion 11, the insertion portion 12, the engagement portion 13, and the pressing portion 14 are integrally joined, and is made of a flexible material such as nylon or polypropylene. It is manufactured using a synthetic resin having:

  The base portion 11 is configured so that the holding member (the binding band 4) can be attached thereto. In the present embodiment, the base portion 11 is formed in a rectangular parallelepiped shape, and has an insertion hole 16 through which the binding band 4 can be inserted. The base portion 11 is arranged such that the hole direction of the insertion hole 16 is in the front-rear direction, and is configured to attach the binding band 4 through the insertion hole 16.

  The insertion portion 12 is protruded from the base portion 11 so as to be inserted into the through hole 6 provided in the fixing member 2. In the present embodiment, the insertion portion 12 has a front-rear width similar to that of the base portion 11 and is formed in a column (rectangular parallelepiped) having a left-right width smaller than the base portion 11, and has a circular shape in plan view. It is configured so that it can be inserted through the through hole 6.

  The insertion portion 12 is provided so as to protrude downward from near the center of the bottom of the base portion 11 with the front surface and the rear surface substantially aligned with the front surface and the rear surface of the base portion 11, respectively. The distal end (lower end) 18 of the insertion portion 12 in the protruding direction is tapered downward so as to reduce the front-rear width, and the proximal end (upper end) 19 of the insertion portion 12 in the protruding direction is connected to the base 11. Has been established.

  The engaging portion 13 is elastically attached to the insertion portion 12 so as to be able to be inserted into the through hole 6 together with the insertion portion 12 and to be able to engage with the fixing member 2 after being inserted into the through hole 6. It is provided so as to be deformable. In the present embodiment, a plurality of (in this case, a pair of two) engagement portions 13 are provided, and are disposed on the left side and the right side, respectively, so as to take opposing positions with the insertion portion 12 interposed therebetween.

  The engaging portion 13 includes a projecting-direction distal end portion 21 that can contact the fixing member 2, and a projecting-direction base end portion 22 that is provided continuously with the insertion portion 12. The engaging portion 13 is configured such that the projecting direction distal end portion 18 (insertion direction) of the insertion portion 12 is opposed to the projecting direction proximal end portion 19 side (insertion direction front side) of the insertion portion 12. It has a curved shape in which the protruding direction from the back side in the direction is changed at the protruding direction base end portion 22.

  The engaging portion 13 is normally held in a normal posture as shown in FIG. 3 in which the distal end portion 21 in the protruding direction is located at a fixed distance from the proximal end portion 19 side of the insertion portion 12 in the protruding direction. When an external force is applied, the distal end portion 21 in the protruding direction is elastically deformed so as to approach the proximal end portion 19 in the protruding direction of the insertion portion 12 (swinged around the proximal end portion 22 in the protruding direction). You can take a posture.

  The projecting end portion 21 of the engaging portion 13 has a projection 23 that can be arranged in the through hole 6 so as to contact the inner surface of the through hole 6, and the projection 23 is arranged in the through hole 6. And a facing surface 24 facing the fixing member 2 from the back side (lower side) in the insertion direction of the engaging portion 13. After the insertion of the engaging portion 13 into the through hole 6 is completed, the fixing member The second through hole 6 can be engaged with the peripheral portion.

  In the present embodiment, the protrusion 23 is provided substantially parallel to the insertion portion 12 at a predetermined interval. The protrusion 23 is disposed in front of the front end portion 21 in the protruding direction so as to expose the facing surface 24 upward in the engagement portion 13, and has an outer peripheral surface on the side opposite to the insertion portion 12. It is arranged so as to be located closer to the insertion portion 12 than the outer peripheral surface of the facing surface 24.

  In addition, the engaging portion 13 has a shape in which the protruding direction distal end portion 21 side is formed wider than the protruding direction base end portion 22 side. In the present embodiment, as shown in FIG. 4, the engaging portion 13 has a divergent shape that widens in the front-rear direction from the base end 22 in the protruding direction to the front end 21 in the protruding direction. That is, the engagement portion 13 is formed in a reverse tapered shape in a side view.

  More specifically, the engaging portion 13 has an outer peripheral inclined portion (outer peripheral curved portion) 25 on at least one of both ends in the width direction (front-rear direction) in the protruding direction (vertical direction). A width (front-rear width) W1 suitable for insertion into the through-hole 6 on the part 22 side, and a width (front-rear width) larger than the front-rear width W1 on the tip part 21 side (the opposing surface 24) in the protruding direction. ) W2.

  The protruding end portion 21 is formed such that the facing surface 24 has a front-rear width that is substantially the same as the front-rear width W2, and the protrusion 23 has a front-rear width that is substantially the same or slightly smaller than the front-rear width W1. As the engagement area that engages with the engagement section 13 after the engagement section 13 is inserted into the fixing member 2, an engagement area that can have a front-rear width of about the front-rear width W2 can be configured. It has become.

  Here, the front and rear widths W1 and W2 of the engaging portion 13 are arbitrarily set within a range of the front and rear width W3 on the base end portion 19 side of the insertion portion 12 in the protruding direction. In the present embodiment, the ratio of the front-rear width W1 on the base end portion 22 side in the protruding direction of the engaging portion 13 and the front-rear width W2 on the front end portion 21 side in the protruding direction is about W1: W2 = 1: 2. It is set to be.

  In this manner, when the engaging portion 13 is inserted into the through hole 6 together with the insertion portion 12 from above, when the distal end portion 21 in the protruding direction strikes the fixing member 2 and an external force is applied thereto, the engaging portion 13 It is elastically deformed so that it can be inserted, and when the opposing surface 24 passes through the through-hole 6, the protrusion 23 is elastically restored so as to contact the inner surface of the through-hole 6, and the tip 21 in the protruding direction 21 To engage with the fixing member 2.

  The presser portion 14 is protruded from the base portion 11 so that the fixing member 2 can be sandwiched by the engaging portion 13 engaged with the fixing member 2. In the present embodiment, the pressing portion 14 is inclined from the base portion 11 to a position opposed to the protruding direction base end portion 19 of the insertion portion 12 so that the distal end side in the protruding direction is pressed against the fixing member 2 from above. It is extended in a shape.

  The pressing portion 14 is formed in an annular (cylindrical) shape surrounding the outer peripheral portion of the base portion 11, and an outer peripheral edge portion (that is, a protruding end portion of the pressing portion 14) is connected to the base portion 11. It is formed so as to present a skirt shape (dome shape) located below the inner peripheral edge portion. The pressing portion 14 is elastically deformable so that the outer peripheral edge side thereof comes into pressure contact with the fixing member 2.

  The clamp 1 has an overhang portion 28. The overhang portion 28 is for improving the strength of the clamp 1 and preventing an excessive shift movement in the left-right direction when the insertion portion 12 is inserted into the through hole 6. The overhanging portions 28 are provided on both the left and right sides of the insertion portion 12 so as to straddle the holding portion 14 and are displaced rearward from the protrusions 23 on the insertion portion 12 side.

  In such a configuration, when the clamp 1 is used to fasten the fixing object 3 to the fixing member 2, before or after binding and holding of the fixing object 3 by the binding band 4 attached to the clamp 1. At the same time, the insertion portion 12 is inserted into the through hole 6 of the fixing member 2 from the distal end portion 18 in the protruding direction above the fixing member 2, and at the same time, the engaging portion 13 is inserted from the base end portion 22 side in the protruding direction. Insert into hole 6.

  Thereby, as shown in FIGS. 1 and 6, the distal end 21 of the engaging portion 13 in the protruding direction is engaged with the peripheral portion of the through hole 6 of the fixing member 2 from below, and the pressing portion The distal end of the fixing member 2 in the protruding direction is pressed against the peripheral portion of the through hole 6 of the fixing member 2 from above, and the fixing member 2 is elastically clamped by the engaging portion 13 and the pressing portion 14 from above and below. Thus, the clamp 1 can be fixed to the fixing member 2.

  Moreover, in the clamp 1, the wide shape provided on the distal end 21 side of the engaging portion 13 in the protruding direction of the engaging portion 13 allows the engaging region (the engaging portion 13) where the engaging portion 13 engages with the fixing member 2. And the fixing member 2 can be enlarged. Therefore, when the clamp 1 receives a large load during fixing to the fixing member 2, the clamp 1 is firmly supported by using the engagement area, and the inclination of the clamp 1 with respect to the fixing member 2 is suppressed. be able to. As a result, the stability of the fixed state of the clamp 1 with respect to the fixing member 2 can be favorably maintained.

  Next, a second embodiment of the present invention will be described with reference to the drawings.

  FIG. 9 shows a front view of a clamp 51 according to the second embodiment of the present invention. FIG. 10 shows a side view of the clamp 51. In the drawings, the same components as those of the first embodiment are denoted by the same reference numerals.

  The clamp 51 according to the present embodiment is different from the clamp 1 according to the first embodiment in that the clamp 51 includes a sealing material 55.

  As shown in FIGS. 9 and 10, the sealing material 55 is configured to seal between the fixing member 2 and the pressing portion 14 when the clamp 51 is fixed to the fixing member 2. I have. In the present embodiment, the sealing material 55 is formed in an annular (cylindrical) shape having an opening 56, and is arranged so as to surround the insertion portion 12 and the overhang portion 28.

  Specifically, the sealing material 55 has flexibility, and when the clamp 51 is fixed to the fixing member 2, the internal space of the through hole 6 of the fixing member 2 and the external space above the clamp 1 In order to cut off the communication between the holding member 14 and the fixing member 2, the holding member 14 and the fixing member 2 can be sealed so as to seal the space between the holding member 14 and the fixing member 2.

  The sealing material 55 is formed so as to have substantially the same outer diameter as the pressing portion 14 and substantially the same inner diameter as the diameter of the through hole 6, and is disposed coaxially with the pressing portion 14. It is fixed to the lower surface of the holding section 14. The sealing member 55 is formed such that when fixed to the holding portion 14, the lower surface is located at the same vertical position as the facing surface 24 of the engaging portion 13.

  With such a configuration, when the clamp 51 is fixed to the fixing member 2 using the sealing material 55, the fixing member 2 is removed from one side (upper or lower) space via the through hole 6. It is possible to prevent a fluid such as water from leaking into a space on the opposite side (lower or upper side) across the fixing member 2. Further, as shown in FIG. 9, when the clamp 51 receives a load, its inclination can be suppressed, so that the sealing member 55 can be kept in a close contact state, and the performance of the clamp 51 to prevent fluid leakage can be improved. Can be maintained well.

  Next, a third embodiment of the present invention will be described with reference to the drawings.

  FIG. 9 shows a side view of a clamp 61 according to the third embodiment of the present invention. In the drawings, the same components as those of the first embodiment are denoted by the same reference numerals.

  The clamp 61 according to the present embodiment is different from the clamp 1 according to the first embodiment in that the engaging portion 13 has a wide shape in which the projecting direction distal end 21 side is formed wider than the projecting direction base end 22 side. Different.

  As shown in FIG. 10, in the clamp 61, the engaging portion 13 has the wide shape and gradually increases in width (front-rear width) from the projecting direction base end 22 side to the projecting direction distal end 21 side. It has a stepped shape to spread. More specifically, the engaging portion 13 has one or more steps 65 on at least one of a front outer peripheral portion and a rear outer peripheral portion, and has a shape having front and rear widths W1 and W2.

  With such a configuration, the clamp 61 can achieve the same effect as the clamp 1 according to the first embodiment. Further, the clamp 61 can be provided with a sealing member (corresponding to the sealing member 55) which is not shown. In this case, the same effect as the clamp 51 according to the second embodiment can be obtained. I have.

  In the above-described embodiment, the clamp according to the present invention is the clamps 1, 51, and 61 provided separately from the holding member such as the binding band 4 or the like. It is also possible. Further, the engaging portion in the present invention is not limited to the engaging portion 13 having the wide shape described above, as long as the engaging portion 13 has a wide shape at the distal end side in the protruding direction with respect to the base end portion in the protruding direction.

DESCRIPTION OF SYMBOLS 1 Clamp 2 Fixing member 6 Through-hole 11 Base part 12 Insertion part 13 Engagement part 14 Holding part 21 Protrusion tip part 22 Protrusion base part 51 Clamp 55 Seal material 61 Clamp

Claims (4)

A clamp that can be fixed to a fixing member,
A base part,
An insertion portion protruding from the base portion so that the insertion portion can be inserted into a through hole provided in the fixing member;
An engagement portion elastically deformably projecting from the insertion portion so as to be able to be inserted into the through hole together with the insertion portion and to be able to engage with the fixing member after being inserted into the through hole;
A holding portion projecting from the base portion so that the fixing member can be sandwiched by the engaging portion engaged with the fixing member;
The engagement portion,
A protruding direction tip end that can contact the fixing member,
A protruding direction base end portion connected to the insertion portion,
The front-end front-rear width of the protruding-direction distal end that comes into contact with the fixing member is wider than the front-rear width of the protruding-direction base end, and the front-rear width of the protruding-direction front end is the protruding-direction base end of the insertion portion. It is enlarged on both front and rear sides toward the front and rear width of the part (except when exceeding the front and rear width of the base end in the protruding direction of the insertion part).
A clamp characterized in that:   2. The clamp according to claim 1, wherein the engagement portion has a divergent shape that increases in width from the base end in the protruding direction toward the front end in the protruding direction. 3.   2. The clamp according to claim 1, wherein the engaging portion has a stepped shape that gradually increases in width from the base end in the protruding direction to the front end in the protruding direction. 3.   A sealing material having flexibility and configured to seal between the holding portion and the fixing member formed in an annular shape when the fixing member is fixed to the fixing member. The clamp according to any one of claims 1 to 3.

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