JP2000337558A - Clamp device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make fixable a brake pipe, etc., to a car body, etc., easily and certainly. SOLUTION: The clamp device is composed of a clamp 10 and a stud pin 30, wherein the clamp 10 has a slit 11 approx. in the center of its oversurface so as to form overhangs 12 and 13. The overhang 12 is provided with a cavity 14 while the other 13 is provided with a cavity 15. The cavities 14 and 15 share a common space about the direction B so as to form a holding part 16. Adjacent to the holding part 16, a projection 17 is formed. An insertion part to receive the stud pin 30 provided upright on a car body is formed on the bottom surface of the clamp 10, and if insertion is made to this insertion part, it is unlikely to slip off and assembling can be made rotatably. When a brake pipe 40 is inserted into the slit 11 and turned round, it is held by the holding part 16, and reverse rotation is prevented by the projection.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp device for fixing a pipe or a long circular member to a main body of an automobile, for example.

[0002]

2. Description of the Related Art In automobiles, pipes are used to supply liquids and gases, such as fuel, cooling water, various lubricating oils, brake fluids, and negative pressures, to respective parts. Various types of fixing members (hereinafter, referred to as clamps) are used to fix these at predetermined positions. As a general one, there is a type which is fixed by a resin clamp 71 as shown in FIG. This includes several pipes 72, 73,
There is a method in which the members 74 are fixed in the air, and a method in which the state is fixed to studs (not shown) such as panels. Also,
As shown in FIG. 8, there is also a type in which a sheet metal 81 processed into a plate shape to be wound around a pipe 83 is fixed with, for example, bolts 82.

[0003]

However, in the case of a brake pipe or the like having a flare nut (not shown) at the end, the pipe may rotate at the time of tightening and may not be arranged at a predetermined position. In such a case, the clamp 71 shown in FIG.
74 has a large restoring force and may be separated. In the case shown in FIG. 8, a tool such as a screwdriver is required. The present invention has been made in view of such circumstances, and has as its object to provide a clamp device that can easily and reliably fix a brake pipe or the like to a vehicle body or the like.

[0004]

SUMMARY OF THE INVENTION A clamping device according to the present invention has been made in order to solve the above-mentioned problem, and has a base, and extends upright from the base, and then extends to one side to form the base. A first overhanging portion having a first cavity formed therebetween, and a second cavity extending upright from the base and extending to one side opposite to the one side and extending to the base. A second overhanging portion that forms a portion and is separated from the first overhanging portion;
Mounting means for mounting the base on a mounting surface, wherein the rod-shaped member is inserted between the first overhanging portion and the second overhanging portion, and then the first hollow portion and the second hollow portion are inserted. And the rod-shaped member is fixed to the base by being sandwiched between the first overhanging portion and the second overhanging portion.

The mounting means can mount the base to the mounting surface. For example, a stud pin having a plurality of enlarged diameter portions is provided on the mounting surface side, and a claw recess for receiving the stud pin is provided on the base side. A case where the grommet is provided on the mounting surface side and a snap which engages with the grommet is provided on the base side may be adopted. Further, these members may be provided on the opposite side. It is preferable that the attachment means can be attached without using a tool such as a screwdriver, and it is preferable that the attachment means be detachable from the attachment surface.

[0006] It is preferable that the mounting means is such that when the flexibility of the rod-shaped member is small, the base can be rotatably mounted on the mounting surface. That is, if the flexibility is large, the rod-shaped member is inserted between the first overhanging portion and the second overhanging portion, and then bent to guide the first and second hollow portions. It is also possible to fix the base member to the base, but when the flexibility is low, it is preferable that the mounting means be rotatably mounted on the base instead of bending the rod-shaped member. In this way, the base can be guided to the first cavity and the second cavity by rotating the base.

[0007] The rod-shaped member referred to here is a long member having a smaller cross-sectional area than its length, for example, a pipe or a pipe. Since the shapes of the first cavity portion and the second cavity portion can be determined according to the cross-sectional shape, the cross-sectional shape does not matter.

[0008] Either or both of the distance between the base and the first protrusion in the first cavity and the distance between the base and the second protrusion in the second cavity. May be slightly smaller than the outer dimensions of the rod-shaped member.

The phrase "slightly smaller interval" means that the first overhanging portion and the second overhanging portion can be elastically deformed.
The length is appropriately determined depending on the length of each overhang portion, its material, and the like. It is preferable to provide a gentle mountain-shaped projection at the "slightly reduced interval". Further, in order to prevent the rod-like member once fixed to the base from coming off the first overhanging portion and the second overhanging portion, the inclined surface of the projection portion is
Optimally, the entrance to the cavity should be gentle and the exit from the cavity should be sharp. The specific shape may be appropriately determined according to the cross-sectional shape of the rod-shaped member. It is preferable that the position at which the protrusion is provided is shifted to the distal end side of the first overhanging portion and the second overhanging portion by the outer dimension of the rod-shaped member.

The projection may be provided only on the first overhanging portion and the second overhanging portion, or may be provided only on the corresponding base portion. In addition, the first overhang portion side and the second overhang portion
The protrusions may be provided on both the overhanging portion side and the corresponding base side. Furthermore, it may be provided only on one of the first overhanging portion side and the second overhanging portion side.

The mounting means includes a stud pin provided on a mounting surface in advance, an enlarged diameter portion provided at a predetermined interval in the axial direction of the stud pin, a concave portion provided on the base portion for receiving the stud pin, And a claw portion provided on the inner surface of the tongue and engaging with the enlarged diameter portion. Note that a plurality of enlarged diameter portions may be provided as described above, but if sufficient strength is ensured, a single enlarged diameter portion may be provided.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a clamp device according to the present invention will be described with reference to the drawings. A clamp device according to an embodiment of the present invention has an appearance as shown in FIGS. 1 and 2, and includes a clamp 10 and a stud bolt 3.
0 (see especially FIG. 3). That is, the clamp 10 is fixed to the stud pins 30 attached to the surface to be fixed (the vehicle body 50 side) (see FIG. 4 in particular).

As shown in FIGS. 1 to 6, the clamp 10 has a substantially cubic shape, and has an overhang portion 12 and an overhang portion 13 on its upper surface. As shown in FIG. 1, FIG. 2, or FIG. 5B, the projecting portions 12 and 13 are formed by one slit 11 having both ends opened substantially at the center of the clamp 10. That is, the slit width s
Only (see FIG. 5 (b)), the overhang portion 12 and the overhang portion 13 are separated from each other. The slit width s is larger than the diameter of the fixed brake pipe 40 (see FIG. 1).

As shown in FIGS. 1, 2, and 5 (a) and (b) or FIGS. 6 (a) and 6 (b),
A cavity 14 is formed, and a cavity 15 is formed in the overhang 13. The cavity 14 and the cavity 15
Are open in opposite directions (see especially FIG. 2). That is, the overhang portion 12 and the overhang portion 13 are provided so as to respectively extend upward and then extend to one side. Each direction extending to the side includes the overhang 12 and the overhang 1
3 and the reverse direction. As shown in FIGS. 6A and 6B, the bottoms of the cavity 14 and the cavity 15 are
It is formed continuously with the slit bottom 11a and is substantially flat.

As shown in FIGS. 1 or 5A and 5C, the clamp 10 has a holding portion 16 in a direction B substantially perpendicular to the longitudinal direction A of the slit 11. This holding part 16
Are formed in the cavities 14 and 15 in a common space in the direction B. That is, a space penetrating in the direction B is formed. The holding portion 16 corresponds to the cross-sectional shape and size of the fixed brake pipe 40, and has a shape slightly larger than the size.

As shown in FIGS. 1 and 5, (a) to (c) or (a) and (b) of FIG. 6, the holding portion 16 has a projection 17 (projection). . The convex portion 17 is formed on the side of the slit bottom 11 a and the hollow portion 1 of the overhanging portions 12 and 13.
They are provided on the sides 4 and 15, respectively, and are formed in a gentle mountain shape. That is, the distance between the slit bottom 11a and the overhang 12 in the cavity 14 and the cavity 1
In FIG. 5, the interval between the slit bottom 11a and the overhang 13 is slightly reduced in part. As shown in FIG.
The brake pipe 40 held by the holding part 16 does not move in the cavities 14 and 15 carelessly. As described above, the brake pipe 40 is prevented from easily passing through the convex portion 17. However, since the protruding portions 12 and 13 have free ends at their ends and are elastically deformable, the brake pipe 40 is held. Even if the projecting portion 17 is climbed over the projecting portion 17 when being inserted into or taken out of the portion 16, the projecting portions 12, 13 are not damaged, and no special tool is required. Note that the height of the convex portion 17 may be within the range of elastic deformation, and is specifically determined by the material of the clamp 10 and the cross-sectional shape and length of the overhang portions 12 and 13.

As shown in FIG. 1 to FIG.
The lower portion 18 is thin, and a recessed stud insertion portion 21 (see FIG. 5C) is provided at a substantially central portion of the bottom portion 19. The insertion opening 22 of the stud insertion portion 21 is located on the bottom surface 19 side and is formed in a circular shape. Inside the stud insertion portion 21, a substantially rectangular space 23 (see FIG. 3) larger than the insertion opening 22 is formed, and its side walls 24a and 24b (see FIG. 4) are in the depth direction (upward direction in the drawing). ) Are provided with a plurality of claw portions 25 (see FIG. 3) at predetermined intervals. The claw portion 25 is elastically deformable, and a pair of side walls 24 a facing each other in the longitudinal direction A of the slit 11.
24b, and is not provided on the other pair of side walls. The claws 25 are provided so as not to abut (contact) with each other, and as shown in FIGS. 3 to 5, the tips of the claws 25 are provided so as to be inclined to the back side. The insertion opening 22 of the stud insertion portion 21 is deformable so that a diameter-enlarged portion 31 of a stud pin 30 described later can pass therethrough (see FIG. 4). In addition, the clamp 10 can be manufactured integrally with an elastic material such as plastic. As the material, for example, polyacetal (POM), nylon, polypropylene (PP), or the like can be used.

Next, the stud pins 30 will be described with reference to FIGS. The stud pin 30 has a pin shape, and has a plurality of enlarged portions 31 (see FIG. 3) formed at predetermined intervals in the axial direction. The enlarged diameter portion 31 is formed in a shape and size corresponding to the claw portion 25 of the clamp 10. In the present embodiment, the stud pin 30 is used, but, for example, a threaded stud bolt (not shown) may be used.

Next, the mounting procedure will be described with reference to FIGS. First, the stud pins 30 are erected on the vehicle body 50 side and fixed (see FIG. 3). The fixing position is an arbitrary position in a region where the brake pipe 40 is provided. Thereafter, as shown in FIGS. 3 and 4, the stud pin 30 is inserted deeply into the stud insertion portion 21 of the clamp 10 to engage the claw portion 25 (on the clamp 10 side) with the enlarged diameter portion 31 (on the vehicle body 50 side). . In this state, while the clamp 10 is not easily detached from the stud pin 30, the clamp 10 is rotatable around the axis of the stud pin 30.

Then, as shown in FIG.
Is adjusted so that the longitudinal direction A of the slit 11 is parallel to the mounting direction of the brake pipe 40, and the brake pipe 40 is inserted into the slit 11. In this state, the brake pipe 40 is located at the slit bottom 11a. Thereafter, as shown in FIG. 2, when the clamp 10 is rotated 90 degrees (counterclockwise C in plan view), the brake pipe 40 passes from the cavities 14 and 15 over the convex portion 17 to the holding portion 16. You will be guided. The rotation of the brake pipe 40 in the holding portion 16 in the reverse direction is prevented by the convex portion 17, and the direction in which the brake pipe 40 is removed is restricted, so that the separation is prevented. Even when a flare nut is attached to the end of the brake pipe 40 or when the restoring force of the brake pipe 40 is large, the brake pipe 40 can be easily and reliably fixed to the vehicle body 50 side. As described above, since the brake pipe 40 can be fixed only by inserting it into the slit 11 and rotating it, it can be assembled very easily.

The present invention can be applied to all motorcycles, four-wheeled vehicles, lawn mowers, boats, personal watercrafts, houses, and the like where piping and round members need to be fixed.

[0022]

The clamping device according to the present invention comprises:
A first overhang extending from the base and extending to one side and then forming a first cavity with the base; and a first overhang extending from the base and extending opposite to the one side thereafter A second overhang that extends to one side and forms a second cavity between the base and the base, and a second overhang separated from the first overhang; mounting means for mounting the base to a mounting surface; And inserting the rod-shaped member between the first overhanging portion and the second overhanging portion, guiding the rod-shaped member into the first cavity portion and the second cavity portion, and setting the first overhanging portion. Since the rod-shaped member is fixed to the base portion by being sandwiched between the protrusion and the second projecting portion, the rod-shaped member can be fixed easily and reliably.

[0023] Either one or both of the distance between the base and the first overhang in the first cavity and the distance between the base and the second overhang in the second cavity. Is slightly smaller than the external dimensions of the rod-shaped member, even if the restoring force of the rod-shaped member is large,
The rod member once fixed can be prevented from coming off.

The mounting means includes a stud pin provided on a mounting surface in advance, an enlarged diameter portion provided at a predetermined interval in an axial direction of the stud pin, a concave portion provided on the base portion for receiving the stud pin, When the claw portion is provided on the inner surface of the concave portion and engages with the enlarged diameter portion, the work of assembling the base portion to the mounting surface can be easily performed, and it is difficult for the base portion to be detached once assembled to the base portion. Therefore, assembling can be performed more reliably, and the assembling workability can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state before a brake pipe is assembled to a clamp device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a brake pipe is assembled to the clamp device of FIG. 1;

FIG. 3 is a partial cross-sectional view showing a state before the clamp in the clamp device of FIG. 1 is attached to a stud pin (showing an external appearance).

FIG. 4 is a partial cross-sectional view showing a state in which the clamp in the clamp device of FIG. 1 is assembled to a stud pin (showing an external appearance).

5A and 5B are projection views of the clamp in the clamp device of FIG. 1, in which FIG. 5A is a rear view with a part cut away, FIG. 5B is a plan view, and FIG.

FIGS. 6A and 6B are projection views of the clamp in the clamp device of FIG. 1, wherein FIG. 6A is a left side view, and FIG. 6B is a right side view.

FIG. 7 is a perspective view showing a conventional clamping device,
(A) shows a state before assembling, and (b) shows a state of assembling completed.

FIG. 8 is a perspective view showing another conventional clamping device,
(A) shows a state before assembly, and (b) shows a state before assembly is completed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Clamp 11 Slit 11a Slit bottom part 12, 13 Overhang part 14, 15 Cavity part 16 Holding part 17 Convex part 18 Lower part 19 Bottom part 21 Stud insertion part 22 Insertion opening 23 Substantially rectangular space 24a, 24b Side wall 25 Claw part 30 Stud pin 31 Large-diameter portion 40 Brake pipe 50 Body A Longitudinal direction of slit 11 B Direction substantially orthogonal to longitudinal direction A of slit 11 C Rotation direction of clamp 10 s Slit width

Claims (3)

[Claims] 1. A base, a first overhang extending from the base and extending to one side and forming a first cavity between the base and the base, and a first overhang from the base. A second bulge extending from the first bulge and extending away from the first bulge and extending to one side opposite to the one bulge to form a second cavity between the base and the base; Mounting means for mounting the rod-shaped member to the mounting surface, and after inserting the rod-shaped member between the first overhanging portion and the second overhanging portion, the rod-shaped member is inserted into the first hollow portion and the second hollow portion. A clamp device for guiding and fixing the rod-shaped member to the base by sandwiching the first and second overhangs between the first and second overhangs. 2. One of a distance between the base and the first protrusion in the first cavity and a distance between the base and the second protrusion in the second cavity. 2. The clamping device according to claim 1, wherein both of them are slightly smaller than the outer dimensions of the rod-shaped member. 3. 3. The mounting means includes a stud pin provided on a mounting surface in advance, an enlarged diameter portion provided at a predetermined interval in an axial direction of the stud pin, a concave portion provided on the base portion for receiving the stud pin, The clamp device according to claim 1, wherein the claw portion is provided on an inner surface of the concave portion and is engaged with the enlarged diameter portion.