JP2005331044A - Pipe holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe holder easily and firmly installable in a car body, and holding by regulating relative displacement of a pipe different in an outer diameter. <P>SOLUTION: This pipe holder A has an installation part 10 and a diametrally different pipe holding part 20. The installation part 10 is formed of a through-hole 11 for inserting a stud bolt arranged in the car body, engaging claws 12 and 13 integrally engaging with the stud bolt, and a projecting part 12c integrally formed in the engaging claw 12 and regulating displacement of the claw 12. The holding part 20 is formed of a receiving part 21 formed in a substantially U shape, holding arms 22 and 23 projecting in an inclined shape in the receiving part 21 direction, a first holding claw 24 and a second holding claw 25 for regulating relative displacement to the receiving part 21 by elastically contacting with the pipe. This constitution can easily and firmly install the holder A, and can regulate the relative displacement in the axial direction of the pipe. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pipe holder, and more particularly, to a pipe holder suitable for holding a brake pipe and a fuel pipe in a vehicle.

  2. Description of the Related Art Conventionally, for example, a clamp for a tubular body that holds a pipe (such as a brake pipe or a fuel pipe) and is assembled to a vehicle body as shown in Patent Document 1 below is known. This conventional tube clamp engages with a stud bolt provided on the vehicle body to hold a plurality of pipes integrally with the vehicle body, and selectively selects pipes having different outer diameters from the clamp body. A different-diameter tubular body holding portion that can be held is provided. The different-diameter tube body holding portion is composed of a clamp groove into which a pipe can be fitted and two holding arms protruding with different lengths. In the tube clamp provided with this different diameter tube body holding portion, it is possible to selectively fit a different diameter pipe into the clamp groove by utilizing the bending deformation of both holding arms, and after the pipe is inserted, the holding arm The pipe is held by returning to its original state.

  In general, a pipe holder such as a clamp that integrally holds a plurality of pipes with respect to a vehicle body, for example, has a function of holding the holder itself and the pipe without dropping due to vibration generated in the vehicle. However, it is desired that the pipe and the pipe holder have a function of preventing relative displacement in the axial direction. This is because, for example, if the pipe and the pipe holder (more specifically, the contact portion with the pipe) are relatively repeatedly displaced in the axial direction, the surface treatment layer applied to the surface of the pipe may be peeled off. Because there is. By the way, in the conventional tube clamp, even when different diameter pipes are held, the two holding arms prevent the pipe from dropping off well. However, in order to firmly hold the tube clamp with respect to the stud bolt, it is necessary to assemble the stud bolt with another member (for example, a nut or the like). Furthermore, the displacement of the pipe and the tube clamp in the relative axial direction is not actively prevented.

JP-A-11-230415

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to easily and firmly assemble a pipe to a vehicle body and regulate and hold relative displacement of pipes having different outer diameters. It is to provide a holding tool.

  A feature of the present invention is that, in a pipe holder that is fitted to a vehicle body by inserting and holding a plurality of pipes, a through hole through which a stud bolt provided in the vehicle body is inserted, and a stud bolt that is inserted through the through hole are integrated. An engaging claw to be engaged, and a convex portion that is formed integrally with the engaging claw and that abuts against a portion where the through hole is formed and regulates the displacement of the engaging claw engaged with the stud bolt. And a receiving portion formed in a substantially U shape for supporting pipes having different outer diameters, and capable of fitting and holding pipes having different outer diameters. Elastically contact the two holding arms that can be elastically deformed by projecting in an inclined manner toward the receiving portion with different lengths on the open end side, and the inserted pipes having different outer diameters. Relative to the receiving part of the pipe Lies in the arrangement and a pipe holding portion formed and a holding claw for regulating the position.

  In this case, it is preferable that the holding arm of the pipe holding portion is formed to have a large thickness at a portion contacting the inserted pipe having a different outer diameter. The holding claw of the pipe holding part may be formed of two holding claw pieces that are provided on the receiving part and elastically contact the inserted pipes having different outer diameters.

  According to these, by inserting the stud bolt provided in the vehicle body from the through hole formed in the mounting portion of the pipe holder, the engaging claw engages with the thread portion of the stud bolt, and the pipe holder is attached to the vehicle body. Can be assembled. In this case, the engaging claw is preferably provided so as to be elastically deformed and retracted when the stud bolt is inserted. In this way, in a state where the stud bolt and the engaging claw are engaged, that is, in a state where the pipe holder is assembled to the vehicle body, for example, a force acts in a direction to remove the pipe holder due to vibration accompanying traveling of the vehicle. In this case, the protrusion formed integrally with the engaging claw comes into contact with the formation portion of the through hole, thereby restricting the displacement of the engaging claw in the retracting direction (disengagement direction). As a result, even if a force acts in the direction in which the pipe holder is removed, the engaging claw can firmly oppose the acting force by restricting the displacement thereof, and the pipe holder is detached. Can be reliably prevented. Moreover, since the pipe holder can be firmly assembled without using other members only by inserting the stud bolt into the through-hole of the mounting portion, the burden on the operator who performs the assembly operation can be reduced. .

  Moreover, since the pipe holding part has a receiving part and two long and short holding arms, it is possible to reliably hold pipes having different outer diameters. More specifically, when the pipe is fitted in the receiving portion direction, the two holding arms are elastically deformed to allow the pipe to enter. When holding a small-diameter pipe, after passing through the pipe, the short holding arm is restored to its original shape by the elastic force, and the long holding arm is also restored to its original shape. Hold securely by contacting with. On the other hand, when holding a large-diameter pipe, of the two holding arms, the short holding arm returns to its original shape by elastic force after passing through the pipe, and the short holding arm that has returned to its original shape comes into contact with the large-diameter pipe. To hold it securely.

  In this case, by increasing the thickness of the portion of the holding arm that comes into contact with the pipe, for example, even when a force in the direction of removal acts on the inserted pipe, the amount of deformation of the holding arm itself can be reduced. It can be made small, and can be strongly countered against the same acting force. Therefore, the pipe can be held more reliably. Further, by increasing the plate thickness of the portion of the holding arm that contacts the pipe, the inserted pipe can easily come into contact with the two holding arms, and the holding arm can be easily elastically deformed. Therefore, the load at the time of inserting the pipe can be reduced. As described above, the pipe holding portion can hold the pipe that is securely inserted even when pipes having different outer diameters are inserted.

  Furthermore, since the pipe holding portion has a holding claw that elastically contacts the inserted pipe, a predetermined frictional force can be applied to pipes having different outer diameters. The relative displacement with respect to the receiving portion can be restricted. In this case, when the holding claw is formed from two holding claw pieces that elastically contact the inserted pipe, in addition to the restriction of the relative displacement by the predetermined frictional force, the corners of the holding claw pieces ( It is also possible to restrict relative displacement by bringing the edge portion into firm contact with the surface of the inserted pipe. Therefore, relative displacement of the pipes having different outer diameters inserted into the pipe holding part with respect to the receiving part can be restricted, and peeling and wear of the surface treatment layer can be prevented.

  An embodiment of the present invention will be described below with reference to the drawings. 1A to 1C are perspective views schematically showing a pipe holder A according to the present invention. The pipe holder A is formed of a resin material, and a mounting portion 10 that is assembled to a stud bolt provided so as to protrude from the floor panel of the vehicle body is formed at a substantially central portion thereof. Further, the pipe holder A is formed with a different-diameter pipe holding portion 20 and a plurality (two in the present embodiment) of large-diameter pipe holding portions 30 on one side of the attaching portion 10. A plurality of (two in the present embodiment) small-diameter pipe holding portions 40 are formed on the other side.

  The mounting portion 10 includes a through hole 11 for inserting a stud bolt in the vertical direction of the pipe holder A, a pair of two engaging claws 12 and a pair of two engaging with a threaded portion of the inserted stud bolt. The engaging claw 13 is configured. The through hole 11 has a slightly larger inner diameter than the outer diameter of the stud bolt, and the stud bolt is inserted into the mounting portion 10.

  The engaging claw 12 is provided at a position close to the through-hole 11 and includes a connecting portion 12a, an engaging portion 12b, and a convex portion 12c as shown in detail in FIG. The connecting portion 12a elastically connects the engaging portion 12b and the side wall of the mounting portion 10, and protrudes obliquely toward the stud bolt insertion direction. The engaging portion 12b is formed in a convex shape arranged so as to match the pitch of the threaded portion of the stud bolt, and engages with the threaded portion of the inserted stud bolt. The convex portion 12c can be brought into contact with the upper wall of the mounting portion 10 in which the through hole 11 is formed, and the stud bolt is removed from the state in which the stud bolt is engaged with the engaging portion 12b (above the pipe holder A). When it is displaced, the abutment against the upper wall of the mounting portion 10 is performed, and the displacement of the engaging portion 12b, that is, the displacement of the stud bolt is regulated.

  The engaging claw 13 is provided in parallel below the engaging claw 12 and includes a connecting portion 13a and an engaging portion 13b formed in the same manner as the connecting portion 12a and the engaging portion 12b of the engaging claw 12. It is configured. For this reason, since the connection part 13a and the engagement part 13b of the engagement claw 13 function similarly to the connection part 12a and the engagement part 12b of the above-mentioned engagement claw 12, the detailed description is abbreviate | omitted.

  The different-diameter pipe holding part 20 enables fitting of pipes having different outer diameters, that is, large-diameter pipes and small-diameter pipes, and integrally holds the pipes fitted therein. For this reason, the different diameter pipe holding part 20 has a receiving part 21 formed in a substantially U shape, and the receiving part 21 has a different length in the direction of the receiving part 21 on the open end side. It has the 1st arm part 22 and the 2nd arm part 23 which protrude in the inclined form toward it. In the present embodiment, the lengths of the first arm portion 22 and the second arm portion 23 are set so that the second arm portion 23 is longer than the first arm portion 22.

  Each of the first arm portion 22 and the second arm portion 23 is provided so as to be elastically deformable, and when the pipe is inserted in the direction of the receiving portion 21, the first arm portion 22 and the second arm portion 23 are retracted by elastic deformation to allow the pipe to enter. . When the pipe that has entered reaches the receiving portion 21, if the pipe is a large-diameter pipe, the first arm portion 22 returns from the elastic deformation and is pressed against the receiving portion 21 and held integrally. To do. At this time, the second arm portion 23 is maintained in an elastically deformed state. On the other hand, when the entering pipe is a small-diameter pipe, the first arm portion 22 and the second arm portion 23 both return from elastic deformation, and the second arm portion 23 presses the small-diameter pipe against the receiving portion 21 so as to be integrated. Hold on.

  Moreover, the front-end | tip part of the 1st arm part 22 and the 2nd arm part 23 is formed in the substantially S shape as shown in FIG. In this way, by forming the tip portion, it is possible to easily contact the pipe to be inserted, and the first arm portion 22 and the second arm portion 23 can be easily elastically deformed when the pipe is inserted. On the other hand, by increasing the thickness of the tip portion in contact with the pipe, the amount of deformation (more specifically, the amount of crushing deformation) of the first arm portion 22 and the second arm portion 23 can be reduced, and the pipe is removed. (Hereinafter, this force is referred to as the removal force) can be increased.

  Further, the different diameter pipe holding portion 20 is provided with a first holding claw for applying a frictional force (hereinafter, this frictional force is referred to as a thrust force) that holds the inserted pipe to the pipe holder A so as not to be displaced in the axial direction. 24 and a second holding claw 25 are provided. As shown in FIG. 1B, the first holding claw 24 has one end connected to the outer surface of the mounting portion 10 so as to be elastically deformable, and the other end matches the outer surface of the inserted pipe. As shown in FIG. The first holding claw 24 is provided so as to protrude from the surface of the receiving portion 21 by a predetermined amount. When the small-diameter pipe is inserted into the different-diameter pipe holding portion 20, the first holding claw 24 is inserted into the small-diameter pipe inserted by elastic deformation. On the other hand, a predetermined pressing force is applied. Further, when the large-diameter pipe is inserted into the different-diameter pipe holding portion 20, the first holding claw 24 is allowed to enter the large-diameter pipe to the receiving portion 21 by elastically deforming and retracting. ing.

  The second holding claw 25 is composed of two holding claw pieces 25a and 25b as shown suitably in FIG. 1 (c) and FIG. These holding claw pieces 25a and 25b are connected to the receiving portion 21 so as to be elastically deformable. The second holding claw 25 is provided so as to protrude from the surface of the receiving portion 21 by a predetermined amount. When a large-diameter pipe or a small-diameter pipe is inserted into the different-diameter pipe holding portion 20, the second holding claw 25 is elastically deformed to have a large diameter. A predetermined pressing force is applied to the pipe or the small diameter pipe.

  As shown in FIG. 1, the large-diameter pipe holding portion 30 includes a receiving portion 31 that has a substantially same curvature radius as the outer diameter of the large-diameter pipe and is formed in a substantially U shape. A holding arm 32 that protrudes in an inclined manner toward the receiving portion 31 is provided on the open end side of the receiving portion 31. Further, as shown in FIG. 1, the small-diameter pipe holding portion 40 includes a receiving portion 41 having a substantially same curvature radius as the outer diameter of the small-diameter pipe and formed in a substantially U shape. On the open end side of the receiving portion 41, a holding arm 42 that protrudes in an inclined manner toward the receiving portion 41 is provided. Here, the leading end portions of the holding arm 32 of the large-diameter pipe holding portion 30 and the holding arm 42 of the small-diameter pipe holding portion 40 are also formed in a substantially S shape as shown in FIG. Also in this case, by forming the tip portion in a substantially S shape, the elastic deformation of the holding arm 32 or the holding arm 42 when the large-diameter pipe or the small-diameter pipe is fitted can be facilitated, and the large-diameter pipe or The plate thickness of the tip portion in contact with the small diameter pipe can be increased, and the removal force can be increased.

  Next, the operation of the pipe holder A configured as described above will be described in detail. First, as shown in FIG. 5, the pipe holder A holds the fuel pipe Pf as a large-diameter pipe in the large-diameter pipe holder 30 and the brake pipe Pb as a small-diameter pipe in the small-diameter pipe holder 40. Hold. Further, the pipe holder A holds the different diameter pipe Ps having different outer diameters (for example, 10 mm, 8.4 mm, etc.) by the different diameter pipe holding part 20 according to the vehicle type and required performance. Thus, the pipe holder A is assembled to the stud bolt SB protruding from the floor panel of the vehicle while holding the fuel pipe Pf, the brake pipe Pb, and the different diameter pipe Ps. At this time, for example, the assembling operator inserts the stud bolt SB into the through hole 11 of the attachment portion 10 of the pipe holder A holding the pipes Pf, Pb, Ps, thereby engaging the engagement claws 12. , 13 sequentially engage with the threaded portion of the stud bolt SB, so that the pipe holder A is assembled integrally with the vehicle body.

  The pipe holder A assembled with the vehicle body (specifically, the stud bolt SB) in this way is, for example, when a force in the direction of dropping due to vibration in the vehicle body vertical direction generated when the vehicle travels is input. Even if it exists, when the convex part 12c provided in the engagement claw 12 contact | abuts with the upper wall of the attachment part 10, the displacement of the engagement claw 12 is controlled and the drop-off of the pipe holder A is prevented reliably. The pipes Ps, Pf, and Pb held by the different diameter pipe holding part 20, the large diameter pipe holding part 30, and the small diameter pipe holding part 40 are respectively the first arm part 22 or the second arm part 23, and the holding claws. 32, the holding claw 42 prevents the pipe holder A from falling off.

  Further, the different diameter pipe Ps fitted in the different diameter pipe holding portion 20 is given a predetermined thrust force by the first holding claw 24 and the second holding claw 25, and moves in the axial direction relative to the pipe holder A. Is prevented from being displaced. This will be described in detail from the case where the small-diameter pipe Pss is inserted into the different-diameter pipe holding portion 20. When the small-diameter pipe Pss is fitted into the different-diameter pipe holding portion 20, the small-diameter pipe Pss is held by the receiving portion 21 and the second arm portion 23 of the different-diameter pipe holding portion 20, as schematically shown in FIG. ing. The small-diameter pipe Pss is held in a state where a predetermined thrust force is applied by the first holding claw 24 and the second holding claw 25 being elastically deformed. Here, the first holding claw 24 presses the small-diameter pipe Pss inserted by the elastic force resulting from the elastic deformation toward the second holding claw 25.

  If the small diameter pipe Pss is displaced relative to the pipe holder A in the longitudinal direction of the axis (the paper surface direction in FIG. 6), the edge portions of the holding claw pieces 25a and 25b of the second holding claw 25 are the small diameter pipe. By making firm contact with the surface of Pss, a predetermined thrust force is applied to the small-diameter pipe Pss. More specifically, the second holding claw 25 is configured by being divided into two holding claw pieces 25a and 25b. For example, the small diameter pipe Pss is relatively forward with respect to the pipe holder A. When displacing (upward on the paper surface in FIG. 6), a thrust force is applied by the edge portion of the holding claw piece 25a firmly contacting the surface of the small diameter pipe Pss. Due to the applied thrust force, the forward displacement of the small diameter pipe Pss is restricted. On the other hand, when the small-diameter pipe Pss is displaced rearward relative to the pipe holder A, a thrust force is applied by the edge portion of the holding claw piece 25b being firmly in contact with the surface of the small-diameter pipe Pss. The displacement of Pss toward the rear of the axis is restricted.

  Next, when the large-diameter pipe Psl is fitted into the different-diameter pipe holding portion 20, the large-diameter pipe Psl is received by the receiving portion 21 and the first arm of the different-diameter pipe holding portion 20, as schematically shown in FIG. While being held by the portion 22, the first holding claw 24 is elastically deformed downward. The large-diameter pipe Psl is held in a state where a predetermined thrust force is applied from the second holding claw 25. Here, when the large-diameter pipe Psl is fitted into the different-diameter pipe holding portion 20, the outer peripheral surface of the large-diameter pipe Psl and the surface of the receiving portion 21 are held in a substantially coincident state.

  If the large-diameter pipe Psl is displaced relative to the pipe holder A in the longitudinal direction of the axis (the paper surface direction in FIG. 7), the edge portions of the holding claw pieces 25a and 25b of the second holding claw 25 are large. By making firm contact with the surface of the diameter pipe Psl, a predetermined thrust force is applied to the large diameter pipe Psl. This will be described in more detail. Since the second holding claw 25 is divided into two holding claw pieces 25a and 25b, for example, the large-diameter pipe Psl is relatively disposed with respect to the pipe holder A. When displacing forward (upward in the drawing in FIG. 7), a thrust force is applied by the edge portion of the holding claw piece 25a firmly contacting the surface of the large-diameter pipe Psl. Due to the applied thrust force, the displacement of the large-diameter pipe Psl forward in the axial direction is regulated. On the other hand, when the large-diameter pipe Psl is displaced rearward relative to the pipe holder A, a thrust force is imparted by the edge portion of the holding claw piece 25b firmly contacting the surface of the large-diameter pipe Psl. The rearward displacement of the large diameter pipe Psl is restricted.

  As can be understood from the above description, according to the embodiment, the engaging claw 12 of the mounting portion 10 is provided with the convex portion 12c. Thus, even when a force in the direction of dropping acts on the pipe holder A, the convex portion 12c is engaged by being brought into contact with the upper wall in which the through hole 11 of the mounting portion 10 is formed. The displacement of the claw 12 is restricted, so that the pipe holder A is prevented from dropping off. Therefore, in the assembling work, the operator simply inserts the stud bolt SB of the vehicle body into the mounting portion 10 of the pipe holder A, and does not need a separate work for fixing the pipe holder A to the vehicle body. The pipe holder A can be firmly and securely assembled to the vehicle body.

  Further, the first holding claw 24 and the second holding claw 25 are provided in the different diameter pipe holding portion 20 into which different diameter pipes Ps having different outer diameters can be fitted. As a result, a predetermined thrust force can be applied to the large-diameter pipe Psl or small-diameter pipe Pss inserted into the different-diameter pipe holding portion 20, and the pipe holder for the inserted large-diameter pipe Psl or small-diameter pipe Pss. Relative displacement with respect to A. Specifically, axial displacement can be regulated. Therefore, for example, it is possible to prevent the surface treatment layer applied to the surface of the different diameter pipe Ps from being peeled off or worn out due to the axial displacement over a long period of time. Further, the relative axial displacement of the different-diameter pipe Ps is restricted by the different-diameter pipe holding portion 20, so that the fuel pipe Pf and the small-diameter pipe holding portion held by the large-diameter pipe holding portion 30 of the pipe holder A are used. The relative axial displacement of the brake pipe Pb held at 40 with respect to the pipe holder A can also be reduced. Therefore, it is possible to effectively reduce peeling and wear of the surface treatment layer of the fuel pipe Pf and the brake pipe Pb, which is preferable.

  Here, the present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above-described embodiment, the pipe holder A is provided with the different-diameter pipe holding portions 20, but it is also possible to provide a plurality of different-diameter pipe holding portions 20. Even in this case, the same effects as those of the above embodiment can be obtained, and, depending on the vehicle type and required performance, for example, even if the outer diameter of the fuel pipe Pf is different, different pipe holders for different outer diameters. This makes it possible to share parts.

(A)-(c) is the perspective view which showed schematically the pipe holder which concerns on one Embodiment of this invention. It is the schematic for demonstrating the structure of the engaging claw which forms the attachment part of the pipe holder of FIG. It is the schematic for demonstrating the shape of the front-end | tip part of each arm part of the pipe holder of FIG. It is the schematic for demonstrating the structure of the 2nd holding claw of the pipe holder of FIG. FIG. 2 is a diagram schematically showing a state in which the pipe holder of FIG. 1 is assembled to a vehicle and a state in which each pipe is held. It is a figure for demonstrating the state in which the 1st holding claw and the 2nd holding claw are giving thrust force with respect to the small diameter pipe inserted by the different diameter pipe holding part of the pipe holder of FIG. It is a figure for demonstrating the state in which the 2nd holding claw is giving the thrust force with respect to the large diameter pipe inserted by the different diameter pipe holding part of the pipe holder of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Mounting part, 11 ... Through-hole, 12, 13 ... Engagement claw, 20 ... Different diameter pipe holding part, 21 ... Receiving part, 22 ... 1st arm part, 23 ... 2nd arm part, 24 ... 1st holding | maintenance Claw, 25 ... second holding claw, 25a, 25b ... holding claw piece, 30 ... large diameter pipe holding portion, 31 ... receiving portion, 32 ... holding arm, 40 ... small diameter pipe holding portion, 41 ... receiving portion, 42 ... holding arm

Claims (3)

In a pipe holder that fits into and holds a plurality of pipes,
A through-hole through which a stud bolt provided in the vehicle body is inserted, an engaging claw that is integrally engaged with a stud bolt inserted through the through-hole, and the through-hole that is integrally formed with the engaging claw A mounting portion formed to have a convex portion that abuts against the formed portion and regulates the displacement of the engaging claw engaged with the stud bolt;
Pipes with different outer diameters can be inserted and held, and the receiving part formed in a substantially U shape for supporting the inserted pipes with different outer diameters is different on the open end side of the receiving part. Two long and short holding arms that can be elastically deformed by projecting in an inclined shape toward the receiving portion in length, and the pipes having different outer diameters elastically contacted with each other and relative to the receiving portion of the pipe A pipe holder characterized by comprising a pipe holder formed with a holding claw for restricting general displacement. In the pipe holder according to claim 1,
The pipe holder is characterized in that the holding arm of the pipe holding part is formed to have a large plate thickness at a portion contacting the inserted pipe having a different outer diameter. In the pipe holder according to claim 1,
The pipe holding portion is formed of two holding claw pieces that are provided in the receiving portion and elastically contact the inserted pipes having different outer diameters. Ingredients.

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