JP6629653B2 - Piping fixture - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe fixing device used in a cargo handling vehicle, and more particularly, to a pipe fixing device for fixing a hydraulic pipe for a cargo handling vehicle having flexibility to the cargo handling vehicle.

  For example, a hose clamp described in Patent Literature 1 sandwiches a hose by sandwiching the hose with a pair of clamp members formed in a block shape.

JP 2003-172316 A

  However, in the invention described in Patent Literature 1, when the outer diameter of the hose is different, a different clamp member is required for each outer diameter. For this reason, clamp members having the same shape but different dimensions increase.

  The present invention has been made in view of the above circumstances, and has as its object to provide a pipe fixture capable of supporting pipes having various outer diameters.

  In the present application, a clamp member (3) for contacting the hydraulic pipe (P) and holding the hydraulic pipe (P), and a fixing member (5) for fixing the clamp member (3) to the cargo handling vehicle. Is provided.

  Thus, in the present application, it is possible to use the fixing member (5) as a common component and the clamp member (3) as a dedicated component for each hydraulic pipe (P). A pipe fixing device that can handle (3) can be obtained.

  That is, even when the outer diameter of the hydraulic pipe (P) to be fixed is different, it is sufficient to use the clamp member (3) suitable for the hydraulic pipe (P), and the fixing member (5) is changed. No need to do. Therefore, it is possible to obtain a pipe fixing tool that can cope with hydraulic pipes (P) having various outer diameters.

  Incidentally, the reference numerals in the parentheses above are examples showing the correspondence with the specific configurations and the like described in the embodiments described later, and the present invention is limited to the specific configurations and the like indicated in the parentheses. Not something.

It is a perspective view of piping fixture 1 concerning a 1st embodiment of the present invention. It is a perspective view of clamp member 3 concerning a 1st embodiment of the present invention. FIG. 2 is a perspective view of a fixing member 5 according to the first embodiment of the present invention. It is AA sectional drawing of FIG. It is a top view of clamp member 3 concerning a 1st embodiment of the present invention. FIGS. 7A and 7B are views showing a state when the fixing member 5 is fitted to the clamp member 3 according to the first embodiment of the present invention. A is a top view of the clamp member 3 according to the second embodiment of the present invention. FIG. 7B is a sectional view taken along line AA of FIG. 7A. It is a figure showing the state at the time of fitting fixed member 5 to clamp member 3 concerning a 2nd embodiment of the present invention. It is a perspective view of piping fixture 1 concerning a 3rd embodiment of the present invention. It is a figure showing the feature of piping fixture 1 concerning a 4th embodiment of the present invention. It is a perspective view of piping fixture 1 concerning a 5th embodiment of the present invention.

  The “embodiment of the invention” described below shows an example of an embodiment belonging to the technical scope of the present invention. That is, the invention-specifying matters described in the claims are not limited to the specific configurations and structures shown in the following embodiments.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that arrows and the like indicating the directions attached to the respective drawings are provided for easy understanding of the relationship between the respective drawings. The invention is not limited to the directions given in the figures.

At least one member or site described with a reference numeral is provided, unless otherwise specified, such as "plural" or "two or more".
(1st Embodiment)
In the present embodiment, the present invention is applied to a pipe fixing device for fixing a hydraulic pipe used for a cargo handling vehicle such as a forklift to the cargo handling vehicle. The hydraulic pipe is a flexible pipe such as a rubber hose. The hydraulic pipe according to the present embodiment is a pipe for sending a hydraulic pressure to a hydraulic cylinder (not shown) for a cargo handling device.

1. Structure of Piping Fixture As shown in FIG. 1, the pipe fixing device 1 fixes the hydraulic pipe P to the body of a cargo handling vehicle so as to cover a part of the hydraulic pipe P. The pipe fixture 1 includes at least a clamp member 3 (see FIG. 2) and a fixing member 5 (see FIG. 3).

  The clamp member 3 is a member for contacting and holding the hydraulic pipe P. Specifically, the clamp member 3 is provided with a tunnel-like groove 3A for covering a part of the hydraulic pipe P as shown in FIG. The clamp member 3 according to the present embodiment is made of a resin such as polyamide.

The fixing member 5 is a member for fixing the clamp member 3 to the body of the cargo work vehicle. Fixing member 5 according to this embodiment, as shown in FIG. 1, is pressed against the clamp member 3 covers the clamping member 3 so as to straddle the clamp member 3 in a direction perpendicular to the axial direction L1 to the vehicle body. The “axial direction L1” refers to a direction parallel to the extending direction of the groove 3A.

  That is, as shown in FIG. 3, the fixing member 5 has a bent portion 5A bent in a “U-shape” or “C-shape” covering the clamp member 3, and a fastener such as a bolt or a screw is inserted. It has a mounting portion 5C provided with a through hole 5B.

  In the present embodiment, two attachment portions 5C are provided, and one of the attachment portions 5C is provided on one end side of the bent portion 5A, and the other is provided on the other side of the bent portion 5A. In the present embodiment, one metal plate is subjected to plastic working such as press working, and the pair of mounting portions 5C and the bent portions 5A are integrally formed of metal.

  As shown in FIG. 1, the clamp member 3 is provided with a holding portion 3B for holding the fixing member 5. The holding portion 3B according to the present embodiment is configured to have a pair of locking projections that hook on a part of the fixing member 5 and lock the part. Hereinafter, the locking projections forming the holding portion 3B are referred to as “locking projections 3B”.

  As shown in FIG. 4, each locking projection 3B is provided on each of a pair of wall surfaces 3C substantially orthogonal to the axial direction L1. Each locking projection 3B protrudes from the wall surface 3C on which the locking projection 3B is provided to the other wall surface 3C side. For this reason, a hook-shaped locking structure bent in a substantially L-shape is constituted by each locking projection 3B and each wall surface 3C.

  The pair of wall surfaces 3C are surfaces facing each other, and are surfaces that face each end 5D (see FIG. 3) of the bent portion 5A when the pair of locking projections 3B are hooked on the bent portion 5A. That is, since each end 5D contacts each wall 3C, relative movement of the clamp member 3 with respect to the fixed member 5 in the axial direction L1 is suppressed.

  By fitting the clamp member 3 into the bent portion 5A, the relative movement of the clamp member 3 with respect to the fixed member 5 in the direction orthogonal to the axial direction L1 is suppressed. Since the fixing member 5 is held by the clamp member 3 by the pair of locking projections 3B, the clamp member 3 is prevented from dropping off from the fixing member 5 in a process before the fixing member 5 is fixed to the vehicle body. Is done.

  As shown in FIG. 5, a through-hole 3D reaching the groove 3A is provided at a portion of the clamp member 3 where the pair of locking projections 3B are provided. The through hole 3D is a through hole for enabling a slide core for forming the pair of locking projections 3B to be omitted.

  That is, when the penetrating direction of the through hole 3D is the vertical direction, by providing the through hole 3D, for example, the clamp member 3 is formed by the upper die and the lower die having the positions of the pair of locking projections 3B as the mold splitting surfaces. Can be molded.

The dimension from each wall surface 3C to the tip of each locking projection 3B (hereinafter referred to as a protruding dimension), the bending rigidity of each locking projection 3B, and the like are determined according to, for example, the following concept.
The assembly worker fits the fixing member 5 to the clamp member 3 by fitting the bent portion 5A into a space surrounded by the pair of locking projections 3B and the pair of wall surfaces 3C as shown in FIG. Assemble.

  That is, by bending the pair of locking projections 3B in the elastic deformation region, the bent portion 5A fits into a space surrounded by the pair of locking projections 3B and the pair of wall surfaces 3C. After the bent portion 5A fits into the space, the pair of locking protrusions 3B is bent and the deformation is eliminated, so that the bent portion 5A is locked in a state of being caught by the pair of locking protrusions 3B.

  Therefore, the pair of locking projections 3B are (a) elastic enough to be fitted without plastic deformation when the bent portion 5A is fitted into the space surrounded by the pair of locking projections 3B and the pair of wall surfaces 3C. It is necessary to have a deformable bending stiffness and (b) a protruding dimension capable of exerting a binding force to the extent that the bent portion 5A does not fall out of the space when the bent portion 5A fits into the space. is there.

2. How to Use Pipe Fixing Tool and Features When fixing the hydraulic pipe P to the vehicle body using the pipe fixing tool 1, the worker first fits the fixing member 5 into the clamp member 3, and the fixing member 5 State. Next, the worker attaches the pipe fixing tool 1 to the hydraulic pipe P such that the hydraulic pipe P fits into the groove 3A of the clamp member 3 (see FIG. 1).

  Thereafter, the operator inserts a mechanical fastener such as a bolt into the through hole 5B to fix the fixing member 5 to the vehicle body. Accordingly, the clamp member 3 is held between the fixing member 5 and the vehicle body, so that the hydraulic pipe P is fixed to the vehicle body.

  In this embodiment, since the clamp member 3 that contacts the hydraulic pipe P and holds the hydraulic pipe P and the fixing member 5 that fixes the clamp member 3 to the vehicle body are separate members, the fixing member 5 is a common component. Thus, it is possible to use the clamp member 3 as a dedicated part for each hydraulic pipe P.

  That is, the dimensions of the outer dimensions of the clamp member 3 that fit into the bent portion 5A are the same regardless of the outer diameter of the hydraulic pipe P. The groove diameter of the groove portion 3A formed in a tunnel shape has a size corresponding to the outer diameter of the hydraulic pipe P.

  Therefore, even when the outer diameter of the hydraulic pipe P to be fixed is different, it is sufficient to use the clamp member 3 having the groove diameter suitable for the hydraulic pipe P, and there is no need to change the fixing member 5. . Furthermore, since the fixing member 5 can be shared, the positions of the screw holes provided in the vehicle body can be shared without changing for each type of the hydraulic piping P.

  By the way, if the hydraulic pipe P is directly fixed to the vehicle body with a metal pipe fixing tool, the hydraulic pipe P may be damaged. For this reason, in the pipe fixture having such a configuration, a protection member for protecting the hydraulic pipe P is usually interposed at a contact point between the hydraulic pipe P and the pipe fixture. However, in the pipe fixing device 1 according to the present embodiment, since the clamp member 3 that contacts the hydraulic pipe P is made of resin, it is not necessary to separately provide a protective member.

  As described above, the pipe fixing device 1 according to the present embodiment can cope with the hydraulic pipes P having various outer diameters regardless of the type of the hydraulic pipes P and fixes the hydraulic pipes P to the vehicle body at low cost. It becomes possible.

  In the present embodiment, since the holding portion 3B (a pair of locking projections 3B) is provided, the clamp member 3 and the fixing member 5 can be treated as one component when the pipe fixing tool 1 is assembled to the vehicle body. it can. Therefore, the workability of assembling the pipe fixture 1 can be improved.

  Incidentally, if the holding portion 3B is not provided, the worker has to fix the fixing member 5 to the vehicle body while holding down the clamp member 3 during the assembling operation. Therefore, when the holding portion 3B is not provided, the assembling workability may be reduced.

(2nd Embodiment)
In the first embodiment, the pair of locking projections 3B constituting the holding portion are provided on each of the pair of opposed wall surfaces 3C.

  On the other hand, in the present embodiment, as shown in FIG. 7B, the locking projection 3B is provided only on one wall surface 3C, and as shown in FIG. 7A, the locking projection 3B is formed on the other wall surface 3C. The thickness of the portion facing is larger than other portions.

  That is, in the clamp member 3 according to the present embodiment, a substantially L-shaped locking structure is formed on the right side of the drawing by the locking projections 3B and the wall surfaces 3C, and no locking structure exists on the left side of the drawing. Note that the same components and the like as those in the above-described embodiment are denoted by the same reference numerals as those in the above-described embodiment, and thus redundant description will be omitted.

  Then, in the present embodiment, as shown in FIG. 8, the operator first inserts the fixing member 5 (bent portion 5A) into the substantially L-shaped locking structure on the right side of the paper, and then the wall surface on the left side of the paper. The fixing member 5 is pressed toward the through-hole 3D so that the end of the bent portion 5A is pressed against the end 3C. Thereby, the fixing member 5 is held by the clamp member 3.

(Third embodiment)
This embodiment is a piping fixture 1 using a clamp member 3 provided with a plurality of grooves 3A, as shown in FIG. The same components and the like as those in the above-described embodiment are denoted by the same reference numerals as those in the above-described embodiment, and thus redundant description will be omitted.

  In FIG. 9, one clamp member 3 is provided with a plurality of grooves 3A. However, the present embodiment is not limited to this. For example, the pipe fixing device 1 may include a plurality of clamp members 3 having one groove 3 </ b> A, and the plurality of clamp members 3 arranged in parallel may be fixed to the vehicle body by one fixing member 5. .

  The holding portion shown in FIG. 9, that is, the locking projection 3B has the same configuration as that of the first embodiment, but the present embodiment is not limited to this. That is, for example, (a) a configuration similar to the second embodiment, or (b) a configuration in which one or two locking projections 3B hold the groove 3A regardless of the number of grooves 3A may be used.

  The present embodiment can be applied even when the outer diameters of the plurality of hydraulic pipes P are different. That is, if each groove diameter corresponds to the outer diameter of each hydraulic pipe P, it is possible to correspond to hydraulic pipes P having various outer diameters without changing the fixing member 5.

(Fourth embodiment)
In the present embodiment, as shown in FIG. 10, the holding portion 3B is configured by a mushroom-shaped locking projection 3E penetrating the bent portion 5A. Note that the same components and the like as those in the above-described embodiment are denoted by the same reference numerals as those in the above-described embodiment, and thus redundant description will be omitted.

(Fifth embodiment)
In the present embodiment, as shown in FIG. 11, the holding portion 3B is configured by an adhesive layer 3F made of a double-sided tape or an adhesive applied to the fixing member 5 or the clamp member 3. Note that the same components and the like as those in the above-described embodiment are denoted by the same reference numerals as those in the above-described embodiment, and thus redundant description will be omitted.

(Other embodiments)
In the embodiment described above, only the hydraulic pipe P is fixed to the vehicle body by the pipe fixing device 1 according to the present invention. However, the present invention is not limited to this. For example, both the electric harness and the hydraulic pipe P can be fixed to the vehicle body with the pipe fixing device 1 according to the present invention. In this case, the groove diameter of the clamp member 3 needs to be a dimension corresponding to the outer diameter of the electric harness.

In the above-described embodiment, the present invention has been described by taking a forklift as an example of a cargo handling vehicle, but the present invention is not limited to this and can be applied to other cargo handling vehicles.
Although the fixing member 5 according to the above-described embodiment is made of metal, the present invention is not limited to this, and may be made of resin having excellent strength such as engineering plastic.

  In the above embodiment, the holding portion 3B is provided on the clamp member 3, but the present invention is not limited to this. That is, a configuration in which the holding unit 3B is provided in the fixing member 5, a configuration in which the holding unit 3B is omitted, or the like may be used.

  The through-hole 5B according to the above-described embodiment was a through-hole whose outer edge drawn a closed curve. However, the present invention is not limited to this. For example, the through hole 5B may be configured by a substantially U-shaped through hole that is partially open.

  The present invention is not limited to the above-described embodiment as long as it conforms to the gist of the invention described in the claims.

DESCRIPTION OF SYMBOLS 1 ... Piping fixture 3 ... Clamping member 3A ... Groove 3B ... Holding part (locking projection)
3C: wall surface 3D: through hole 3E: locking projection 3F: adhesive layer 5: fixing member 5A: bent portion 5B: through hole 5C: mounting portion P: hydraulic piping

Claims (5)

A pipe fixing device used for a cargo handling vehicle, wherein the pipe fixing device for fixing a hydraulic pipe for a cargo handling vehicle having flexibility to the cargo handling vehicle.
A clamp member that contacts the hydraulic pipe and holds the hydraulic pipe;
A fixing member for fixing the clamp member to the cargo handling vehicle ,
The clamp member,
A groove for covering a part of the hydraulic pipe,
A pair of wall surfaces substantially orthogonal to the extending direction of the groove, and
Wherein a holding portion provided on at least one wall surface of the pair of wall surfaces, piping fixture, characterized in that that having a holding portion for holding the fixing member. The said fixture is provided in each of the said pair of wall surfaces , The piping fixture of Claim 1 characterized by the above-mentioned. The holding portion, the pipe fastener according to claim 1 or 2, characterized in that caught the part of the fixing member is configured to have a locking projection for locking the part such. When the fixing member is fitted in a space surrounded by the holding portion and the pair of wall surfaces, the holding portion has a bending rigidity that can be elastically deformed to an extent that it can be fitted without plastic deformation . The piping fixture according to any one of claims 1 to 3, characterized in that: The piping fixture according to any one of claims 1 to 4, wherein a through hole reaching the groove is provided at a position of the clamp member corresponding to the holding portion .

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