JP4704180B2 - Clamp - Google Patents

Description

  The present invention relates to a clamp used for attaching a pipe or the like around a fuel tank of an automobile to a flange or the like for a fuel tank.

  Around the fuel tank of an automobile, a fuel pipe or the like is attached at a predetermined position via a clamp. For example, in Patent Document 1, this clamp is attached to a housing portion of a main body capable of holding a pipe. From the opening, two or more pipes can be received in order.

In addition, an elastic retaining piece is provided on the inner wall of the accommodating portion, and among these, the elastic retaining pieces other than the uppermost stage are placed on the upper side of the pipe together with a locking portion that prevents the pipe in the accommodating portion from coming off. This elastic retaining piece has both a function to hold the lower pipe and a function to hold the pipe from above, so the upper pipe is on the lower side. It is easy to shift to.
JP 2000-120935 A

  In view of the above facts, an object of the present invention is to provide a clamp that can reliably hold a plurality of pipes.

The invention according to claim 1 is provided in a clamp, a fitting portion fixed to an attachment object, a substantially U-shaped clamp portion connected to the fitting portion, and a central portion of the clamp portion. A first receiving portion that receives the first rod-like object inserted from the insertion opening of the clamp portion, and a second rod-like shape that is provided at the back of the clamping portion and that has been inserted from the insertion opening and passed through the first receiving portion. A second receiving portion for receiving an object, and extending from the insertion port to the space between the first receiving portion and elastically deforming to allow the first rod-like object to enter; A first elastic piece that holds an object, and extends from an inner wall of the clamp part toward a center part of the second receiving part, elastically deforms to allow the second rod-like object to enter, and the second receiving part a second elastic piece which holds the second stick-shaped material, provided with a claw on the end of the first receiving portion is formed by the , First the distance to the extending toward the center of the second stick-shaped material held by the second receiving portion, the claws and the surface of the second stick-shaped material to be held in the second receiving portion is held in the first receiving portion It is characterized by being shorter than the radius of one rod-like object.

  In the first aspect of the present invention, the first rod-like object inserted from the insertion port of the clamp part is inserted into the center part of the substantially U-shaped clamp part provided continuously to the fitting part fixed to the attachment object. The 1st receiving part which receives is provided, and the 2nd receiving part which receives the 2nd rod-shaped object inserted from this insertion slot and passed through the 1st receiving part is provided in the back part of the clamp part.

  Thus, since the 1st rod-like object and the 2nd rod-like object can be inserted from the same insertion slot, workability at the time of attaching a pipe to a clamp part is good, and work man-hours can be reduced. Moreover, the installation area of a clamp part can be made small by arrange | positioning a 1st rod-shaped object and a 2nd rod-shaped object in two steps.

Further, the first elastic piece and the second elastic piece extend from the inner wall of the clamp portion. The first elastic piece extends between the first receiving portions, elastically deforms to allow the first rod-like object and the second rod-like object to enter, and holds the first rod-like object with the first receiving portion. To do. The second elastic piece extends toward the center of the second receiving part, elastically deforms to allow the second bar-like object to enter, and holds the second bar-like object with the second receiving part.

Here, a claw is formed at the end of the first receiving part, extended toward the center of the second bar-shaped object held by the second receiving part, and the second bar-shaped object held by the claw and the second receiving part The distance to the surface is shorter than the radius of the first rod-like object held by the first receiving part . This ensures that it is possible to prevent movement of the first rod-shaped product to be entered into the second receiving portion.

By applying a pressing force of a predetermined value or more to the first rod-shaped object held by the first receiving portion, the first receiving portion can be passed, but the first rod-shaped object is held by the first receiving portion. In the state where the first rod-like object is displaced to the second receiving part side, the claw formed at the end of the first receiving part prevents the first rod-like object from entering the second receiving part, The first rod-shaped object does not fall to the second receiving part side.

The passage through which the first rod-shaped object passes is formed by extending the claw formed at the end of the first receiving portion toward the center of the second rod-shaped object held by the second receiving unit. It will become narrower as it goes to the end of the part. For this reason, when the 1st rod-shaped object slip | deviates to the 2nd receiving part side, the reaction force with respect to this shift | offset | difference arises in the edge part of a 1st receiving part. That is, a force (hereinafter referred to as “returning force”) for returning the first rod-like object to the first receiving portion side works. For this reason, a 1st rod-shaped object will be reliably hold | maintained with a 1st receiving part and a 1st elastic piece.

The invention described in claim 2 is the clamp according to claim 1, wherein said pawl is formed respectively on an end portion of the first receiving portion of the pair.

In the invention according to claim 2 , by arranging the claws on both sides of the first rod-like object held by the first receiving portion, the return force and the insertion force can be stabilized on the left and right of the rod-like object.

According to a third aspect of the present invention, in the clamp according to the first or second aspect , the pair of first receiving portions is inclined in a direction gradually approaching toward the second receiving portion side. And

In the invention according to claim 3 , the first rod-shaped object is held and the second rod-shaped object is inserted by inclining the pair of first receiving portions toward the second receiving portion side gradually toward the second receiving portion side. It can be a guide when you do.

Since the present invention is configured as described above, in the invention according to claim 1, the workability when attaching the pipe to the clamp part is good, the work man-hours can be reduced, and the installation area of the clamp part is reduced. Can be small. Moreover, the movement of the 1st rod-shaped object which tries to approach into a 2nd receiving part can be blocked | prevented, and a 1st rod-shaped object does not fall to the 2nd receiving part side. Further, when the first rod-like object is displaced toward the second receiving portion, a reaction force is generated at the end portion of the first receiving portion, so that the force for returning the first rod-like object to the first receiving portion side is generated. Thus, the first rod-like object is securely held by the first receiving portion and the first elastic piece .

In the invention according to claim 2 , the return force and the insertion force can be stabilized on the left and right sides of the rod-like object. In invention of Claim 3 , while being able to hold | maintain a 1st rod-shaped object, it can be used as a guide when inserting a 2nd rod-shaped object.

  The clamp 10 which concerns on this form is shown by FIGS. 1-3. The clamp 10 includes a fitting body 12 having a triangular shape in a front view and a clamp body 14 having a quadrangular shape. The clamp body 14 includes fuel pipes 16, 18, 20 as rod-shaped objects. Is retained.

  On the other hand, the fitting body 12 is provided with a fitting portion 26 that fits into a rectangular hole 24A formed in a tank flange 24 provided in a fuel tank of an automobile. The fitting portion 26 has a rectangular tube shape that hangs down from the lower surface side of the clamp 10 (for convenience of explanation, the insertion direction (arrow direction) of the pipe 16 shown in FIG. 2 into the clamp body 14 is a downward direction). The fitting body 12 side of the clamp 10 is the left side, and it is possible to pass through the rectangular hole 24A.

  In addition, an opening 26A is formed in a pair of side walls facing the fitting portion 26, and a claw portion 28 is formed in the opening 26A so as to protrude from the surface of the side wall of the fitting portion 26. Yes. The upper surface of the claw portion 28 and the lower surface of the clamp 10 are provided with a gap substantially the same as the thickness of the tank flange 24. The fitting portion 26 is inserted into the rectangular hole 24A, and the claw portion 28 is reduced in diameter. When the rectangular hole 24A passes and is restored, the upper surface of the claw portion 28 is locked to the peripheral edge of the rectangular hole 24A, and the peripheral surface of the rectangular hole 24A is sandwiched between the lower surface of the clamp 10 and clamped to the tank flange 24. 10 can be fixed.

  On the other hand, the clamp body 14 is provided with holding bodies 30 and 32 formed in a substantially U shape, and the side wall 34 of the holding body 30 located on the fitting body 12 side is more than the side wall 36 of the holding body 32. Is also shorter. Further, the holding body 30 and the holding body 32 are partitioned by a partition wall 38. The holding body 30 is provided with a holding portion 40 capable of holding one pipe 16, and the holding body 32 is provided with two pipes 18 (second rod-shaped object) and 20 (first rod-shaped object). Holding parts 42 (second receiving parts) and 44 (first receiving parts) that can be held are provided.

  Each of the holding bodies 30 and 32 can be elastically deformed, and the side wall 34 and the partition wall 38 constituting the holding body 30 or the side wall 36 and the partition wall 38 constituting the holding body 32 can be brought into and out of contact with each other. ing. Therefore, if the separation distance between the side wall 34 and the partition wall 38 or the side wall 36 and the partition wall 38 is increased, the pipe 16 can enter the holding body 30 and the pipes 18 and 20 enter the holding body 32, respectively. It becomes possible.

  Here, the holding body 30 will be described.

  An elastic piece 46 extends from the upper end side of the side wall 34 and the partition wall 38 of the holding body 30 toward the center portion of the holding portion 40 described later. The separation distance between the upper surfaces 46 </ b> A of the elastic pieces 46 is narrower than the outer diameter of the pipe 16, and can be elastically deformed toward the side wall 34 or the partition wall 38, respectively.

  The elastic piece 46 is formed along the width direction of the side wall 34 and the partition wall 38, and a rectangular hole 48 is formed at the center in the width direction to facilitate elastic deformation of the elastic piece 46. ing. Further, an arc surface 46B having a radius of curvature substantially the same as the outer diameter dimension of the pipe 16 is formed on the tip surface of the elastic piece 46 so that the pipe 16 held by the holding portion 40 can come into surface contact. .

  In addition, a semicircular holding portion 40 having a radius of curvature substantially the same as the outer diameter dimension of the pipe 16 is recessed in the inner portion of the holding body 30 so that the inserted pipe 16 can be brought into surface contact. ing. Here, the separation distance between the side wall 34 and the partition wall 38 is larger than the outer diameter dimension of the pipe 16, and one end portion of the holding portion 40 and the side wall 34, or the other end portion of the holding portion 40 and the partition wall 38. A connecting wall 50 that allows this dimensional difference is provided in between. Thereby, the elastic piece 46 can be easily spread and the pipe 16 can be easily inserted into the holding portion 40.

  Next, the holding body 32 will be described.

  An elastic piece 54 (first elastic piece) extends from the upper end side of the partition wall 38 and the side wall 36 of the holding body 32 toward the center portion of the holding portion 44 described later. Here, pipes 18 and 20 having a smaller diameter than the pipe 16 inserted into the holding body 30 are inserted into the holding body 32, and the separation distance of the elastic piece 54 is larger than the separation distance of the elastic piece 46. Is also getting smaller.

  The separation distance between the upper surfaces 54A of the elastic pieces 54 is smaller than the outer diameter of the pipes 18 and 20, and can be elastically deformed toward the side wall 36 or the partition wall 38, respectively. The elastic piece 54 is formed along the width direction of the partition wall 38 and the side wall 36, and a rectangular notch 56 is formed at the center in the width direction to elastically deform the elastic piece 54. It is easy. Further, an arc surface 54B having a radius of curvature substantially the same as the outer diameter dimension of the pipe 20 is formed on the tip surface of the elastic piece 54, and the pipe 20 held by the holding portion 44 can come into surface contact. Yes.

  Here, the holding portion 44 is configured by a pair of receiving portions 58 and 60 projecting in a substantially triangular shape in front view from the central portion of the partition wall 38 and the side wall 36 of the holding body 32. Each of the side walls 36 is formed along the width direction.

  Further, a gap capable of holding the pipe 20 is provided between the upper surface 58A of the receiving portion 58 and the upper surface 60A of the receiving portion 60, and the distance between them becomes narrower toward the depth of the holding body 32. ing. The pipe 20 is held by the two receiving portions 58 and 60. Hollow portions 58B and 60B are provided in the central portions of the receiving portions 58 and 60 to prevent sink marks after molding due to thickness, and ensure the dimensions between the receiving portions 58 and 60.

  In addition, a semicircular holding portion 42 having a radius of curvature substantially the same as the outer diameter dimension of the pipe 18 is recessed in the inner portion of the holding body 32 so that the pipe 18 can come into surface contact. Further, an elastic piece 52 (second elastic piece) extends from the partition wall 38 to the lower portion of the receiving portion 58 toward the central portion of the holding portion 42 and can be elastically deformed toward the partition wall 38. ing.

  The elastic piece 52 is formed along the width direction of the partition wall 38, and a rectangular hole 61 is formed at the center in the width direction to facilitate elastic deformation of the elastic piece 52. Further, an arc surface 52B having a radius of curvature substantially the same as the outer diameter dimension of the pipe 18 is formed on the tip surface of the elastic piece 52, and the pipe 18 held by the holding portion 42 can come into surface contact. Yes.

  Here, the holding portion 42 holds the pipe 18 having a smaller diameter than the pipe 16 held by the holding portion 40, and the curvature radius of the holding portion 42 is smaller than the curvature radius of the holding portion 40. It has become.

  On the other hand, a holding claw 62 having a substantially triangular shape in front view extends from the lower end of the receiving portion 58 toward the center of the pipe 18 held by the holding portion 42. The distance L from the tip of the holding claw 62 to the surface of the pipe 18 is shorter than the radius R of the pipe 20. This prevents the pipe 20 from entering the holding portion 42 and prevents the pipe 20 from falling to the holding portion 42 side.

  By the way, in the region other than the holding portions 40, 42, 44 of the clamp 10, the meat stealing portion 64 is recessed so that the surface of the clamp 10 does not sink. Moreover, the rib 66 is bridged along the up-down direction of the clamp 10, and the intensity | strength of the clamp 10 is aimed at.

  Next, the operation of the clamp according to this embodiment will be described.

  As shown in FIGS. 1 to 3, first, the fitting portion 26 of the clamp 10 is inserted into the rectangular hole 24A of the tank flange 24, and the claw portion 28 is locked to the peripheral edge portion of the rectangular hole 24A. The clamp 10 is fixed to 24. Next, the pipe 16 is attached to the holding body 30 of the clamp body 14, and the pipes 18 and 20 are attached to the holding body 32.

  Here, when the pipe 16 is to be inserted from the insertion port of the holding body 30 in order to attach the pipe 16 to the holding body 30, the pipe 16 comes into contact with the upper surface 46 </ b> A of the elastic piece 46. When the pipe 16 is pushed into the holding portion 40 in this state, the elastic piece 46 is elastically deformed toward the side wall 34 and the partition wall 38, and the side wall 34 and the partition wall 38 are interposed via the elastic piece 46. It is pushed out.

  In this state, the pipe 16 is moved into the holding portion 40 along the upper surface 46 </ b> A of the elastic piece 46. When the pipe 16 exceeds the corner of the elastic piece 46, the elastic piece 46, the side wall 34, and the partition wall 38 are restored, the pipe 16 comes into surface contact with the holding portion 40, and the outer peripheral surface of the pipe 16 is elastic piece. The pipe 16 is held by the holding portion 40 in contact with the circular arc surface 46 </ b> B of 46.

  Next, in order to attach the pipes 18 and 20 to the holding body 32, the pipe 18 is inserted from the insertion port of the holding body 32. In a state where the pipe 18 is in contact with the upper surface 54 </ b> A of the elastic piece 54, when the pipe 18 is pushed toward the back of the holding portion 42, the pipe 18 passes through the elastic piece 54, and the pipe 18 is received by the receiving portions 58 and 60. It is once held by the holding unit 44 configured.

  When the pipe 18 is further pushed into the holding body 32 from this state, the side wall 36 and the partition wall 38 are pushed out via the receiving portions 58 and 60, and the pipe 18 is exposed to the surfaces of the receiving portions 58 and 60. , Passes and contacts the elastic piece 52.

  When the pipe 18 is further pressed, it moves into the holding portion 42 along the upper surface 52A of the elastic piece 52, and when the pipe 18 exceeds the tip corner of the elastic piece 52, the elastic piece 52, the partition wall 38 and the side wall are moved. 36 is restored, and the pipe 18 comes into surface contact with the holding portion 42, and the outer peripheral surface of the pipe 18 comes into contact with the arc surface 52 </ b> B of the elastic piece 52, so that the pipe 18 is held by the holding portion 42. Next, the pipe 20 is inserted from the insertion port of the holding body 32 and the elastic piece 54 is allowed to pass through. As a result, the pipe 20 is held by the holding unit 44.

  As described above, in the holding bodies 30 and 32, the pipes 16, 18, and 20 can be inserted from the same insertion port, respectively. Therefore, work for attaching the pipes 16, 18, and 20 to the holding bodies 30 and 32 is performed. The workability can be reduced. Moreover, the installation area of the clamp 10 can be reduced by arranging the pipes 18 and 20 in two stages like the holding body 32.

In addition, a holding claw 62 (claw) is provided at the lower end of the receiving portion 58 and extends toward the center of the pipe 18 held by the holding portion 42. This prevents the pipe 20 from entering the holding portion 42 and prevents the pipe 20 from falling to the holding portion 42 side.

  Further, since the holding claw 62 extends toward the holding portion 44, the passage through which the pipe 20 passes becomes narrower as it goes to the tip of the holding claw 62. For this reason, when the pipe 20 is displaced toward the holding portion 42, a reaction force against the deviation is generated in the holding claw 62. That is, a force for returning the pipe 20 to the holding portion 44 side (hereinafter referred to as “return force”) is applied. For this reason, the pipe 20 is reliably held by the holding portion 44 and the elastic piece 54.

  Here, when the return force by the holding claw 62 is increased, the insertion force (hereinafter referred to as “insertion force”) that allows the holding claw 62 to pass in order to hold the pipe 18 by the holding portion 42 becomes large, and workability is improved. Will get worse. For this reason, the return force and the insertion force can be appropriately set by inclining the holding claws 62 toward the center of the pipe 18 with respect to the insertion direction of the pipe 18.

  Further, by extending the holding claw 62 from the lower end portion of the receiving portion 58, the holding claw 62 can be strengthened, and the shape of the holding body 32 can be simplified. Furthermore, by tilting the receiving portions 58 and 60 gradually toward the holding portion 42 side, the pipe 20 can be held and used as a guide when the pipe 18 is inserted.

  In addition, this form is an Example to the last, and it cannot be overemphasized that it can change suitably in the range which does not deviate from the main point of this invention.

  For example, in this embodiment, the holding claw 62 is provided on the receiving portion 58 side, but may be provided on the receiving portion 60 side. Thereby, the return force and the insertion force can be stabilized on the left and right of the pipe 20.

  In this embodiment, the holding body 30 is provided. However, the holding body 30 is not necessarily required. Further, only one pipe 16 can be held in the holding body 30. The holding bodies 30 and 32 may each have a three-stage configuration.

  In addition, the fitting portion 26 has a rectangular tube shape, a claw portion 28 is provided, and is engaged with a rectangular hole 24A formed in the tank flange 24. The shape of the fitting portion 26 is on the tank flange 24 side. It changes together, and is not limited to the shape of this embodiment.

It is a perspective view which shows the clamp which concerns on embodiment of this invention. It is a front view which shows the clamp which concerns on embodiment of this invention. It is a perspective view showing the state where a pipe was held with a clamp concerning an embodiment of the invention.

Explanation of symbols

10 Clamp 26 Fitting part 32 Holding body (Clamp part)
42 Holding part (second receiving part)
44 Holding part (first receiving part)
52 Elastic piece (second elastic piece)
54 Elastic piece (first elastic piece)
58 Receiving part (first receiving part)
60 receiving part (first receiving part)
62 Holding claws (nails)

Claims (3)

A fitting portion fixed to an object to be attached;
A substantially U-shaped clamp portion connected to the fitting portion;
A pair of first receiving portions provided at a central portion of the clamp portion and receiving a first rod-shaped object inserted from an insertion port of the clamp portion;
A second receiving portion that is provided at the back of the clamp portion and receives a second rod-shaped object that has been inserted from the insertion port and passed through the first receiving portion;
Extending toward between the insertion opening of the first receiving portion, a first elastic piece to permit entry of the first stick-shaped material is elastically deformed to hold the first stick-shaped material in said first receiving portion ,
A second member that extends from the inner wall of the clamp portion toward the center of the second receiving portion, elastically deforms to allow the second rod-like object to enter, and holds the second rod-like object with the second receiving portion. Two elastic pieces;
With
A claw is formed at the end of the first receiving portion, extends in the center direction of the second rod-shaped object held by the second receiving portion, and reaches the surface of the second rod-shaped object held by the claw and the second receiving portion. The distance is made shorter than the radius of the 1st rod-shaped object hold | maintained at a 1st receiving part, The clamp characterized by the above-mentioned. The clamp according to claim 1, wherein the claws are respectively formed at end portions of the pair of first receiving portions . The clamp according to claim 1 or 2, wherein the pair of first receiving portions are inclined in a direction gradually approaching toward the second receiving portion side .

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