JP2011094745A - Clamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clamp which effectively absorbs even variations of the outer diameter of an object to be fixed, and improves the production workability. <P>SOLUTION: The clamp 10 includes a base plate 11 and two or more receivers 20 which hold two or more objects P to be fixed in parallel. Each receiver 20 has two or more supports 22 along the held object P to be fixed in the axial direction. At least one of the supports 22 arranged in the axial direction is provided with a holding claw 26 which holds the object P to be fixed against pulling-out. Passages 30 extending along with a plurality of receivers 20 in the parallel direction are formed between the supports 22. Elastic supports 40 comprised of an elastic resin, preferably a forming resin, are provided along the passages 30 on their bottom surfaces 31, with the elastic supports 40 being configured to abut on the held object P fixed to the respective receivers 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a clamp for holding and fixing an object to be fixed such as a pipe or a tube disposed at a predetermined location of an automobile, for example.

  For example, a plurality of objects to be fixed in a linear, tubular, or rod shape such as pipes and tubes used in fuel systems, cooling systems, cables and wire harnesses used in electrical components are arranged in an automobile. .

  If the plurality of objects to be fixed are randomly arranged in a vehicle having a limited space, there is a risk of interference with other members or damage. For this reason, a predetermined position in the axial direction of the object to be fixed is fixed by using a clamp, and a plurality of objects to be fixed are held at predetermined positions in the automobile.

  As this type of conventional clamp, the following Patent Document 1 discloses that one or more fittings in which the object to be fixed is fitted to a clamp body having a fixing portion for fixing the object to be fixed at a predetermined position. A recess is formed, and at least a part of the inner surface of the fitting recess is formed with a slip prevention layer made of an elastic resin material having a large frictional resistance along the axial direction of the fixed object to be fitted. There is disclosed a clamp in which a slip prevention layer is fixed to a clamp body around both side edges of the fitting recess in a substantially U shape.

  In the clamp of Patent Document 1, the clamp body is formed from a synthetic resin such as polyacetal or polypropylene, while the slip prevention layer on the inner surface of the fitting recess is formed from an elastic resin material such as a polyamide-based elastomer or an olefin-based elastomer. Both are formed by two-color molding, and a slip prevention layer is integrally formed on the clamp body.

JP-A-9-79432

  However, in the clamp of the above-mentioned Patent Document 1, in order to provide a slip prevention layer made of an elastic resin material for each insertion recess and so that both side edges of the insertion recess wrap around in a substantially U shape. There was a problem that manufacturing workability deteriorated and the mold structure became complicated.

  Therefore, an object of the present invention is to provide a clamp that can effectively absorb even if the outer diameter of the object to be fixed varies, and can improve the manufacturing workability.

  In order to achieve the above object, the present invention is a clamp for holding and fixing an object to be fixed in a linear, tubular or rod shape, and is provided in parallel on a substrate and a plurality of the objects to be fixed. A plurality of receiving portions that are held in parallel, and each of the receiving portions is fixed in a state in which a supporting portion formed to receive the fixed object is held between a pair of column portions. A holding claw for holding the object to be fixed is provided on at least one of the plurality of support parts arranged along the axial direction. Between the support portions arranged in the axial direction, a passage extending in the parallel direction is formed across the plurality of receiving portions, and an elastic support portion made of elastic resin on the bottom surface along the passage. And the elastic support portions are held by the receiving portions. Providing a clamp, characterized in that contacts the Jobutsu.

  In the present invention, it is preferable that the support portions provided with the holding claws are shifted in the axial direction so as not to be adjacent to each other between the adjacent receiving portions.

  In the present invention, the elastic support portion is preferably made of a foamed resin.

  In the present invention, a protrusion is provided on the bottom surface of the passage along the passage, and the foamed resin is attached to cover the protrusion to form the elastic support portion. Is preferred.

  In the present invention, it is preferable that a groove is formed on the bottom surface of the passage along the passage, and the foamed resin is filled into the groove to form the elastic support portion. .

  In the present invention, a protrusion provided along the passage and a groove provided on at least one side of the protrusion are formed on the bottom surface of the passage. It is preferable that the elastic support portion is formed while covering the strip and entering the groove.

  In the present invention, it is preferable that an elastic piece that elastically contacts and supports the bottom of the fixed object is formed on the bottom of at least one of the supports of the receiving portion.

  According to the present invention, when an object to be fixed is inserted into the receiving part, the object to be fixed is supported by the support part of the receiving part, and is retained by the holding claws. At this time, the passage provided between the support portions arranged in the axial direction is provided with an elastic support portion made of an elastic resin, and the elastic support portion is in contact with the fixed object between the holding claws. Since the object is held elastically, the object to be fixed is held without backlash, and even if the outer diameter varies due to the dimensional error or the type of the object to be fixed, the outer diameter variation is made of an elastic resin. Can be effectively absorbed, and versatility can be enhanced.

  Further, since the elastic support portion extends along the passage so as to intersect the axial direction of the fixed object, even if a force along the axial direction acts on the fixed object, the elastic support portion is covered by the frictional force of the elastic support portion. The axial displacement of the fixed object can be effectively prevented. In addition, since the elastic support portion extends along the passage and is fixed to the bottom surface of the passage with a large area, even if a large force acts in the axial direction of the object to be fixed, it can be made difficult to peel off. .

  Furthermore, the elastic support portion can be formed at a time with respect to the plurality of receiving portions arranged in parallel by adhering and forming the elastic resin along the passage, so that the workability of manufacturing the clamp can be improved.

It is a perspective view which shows 1st Embodiment of the clamp of this invention. It is a front view of the clamp. It is a top view of the clamp. The clamp is shown, (a) is sectional drawing in the DD arrow line of FIG. 3, (b) is sectional drawing in the EE arrow line of FIG. It is sectional drawing of the state by which the to-be-fixed object was hold | maintained using the clamp. It is principal part sectional drawing which shows 2nd Embodiment of the clamp of this invention. It is principal part sectional drawing which shows 3rd Embodiment of the clamp of this invention. It is principal part sectional drawing which shows 4th Embodiment of the clamp of this invention. The 5th Embodiment of the clamp of this invention is shown, (a) is principal part explanatory drawing which shows the one shape, (b) is principal part explanatory drawing which shows another shape.

  Hereinafter, with reference to FIGS. 1-5, 1st Embodiment of the clamp of this invention is described.

  As shown in FIG. 1, the clamp 10 has a linear shape, a tubular shape or a rod shape such as a pipe or tube used in a fuel system or a cooling system of an automobile, or a cable or wire harness used in an electrical component. A substrate 11 and a plurality of receiving portions 20 provided in parallel on the substrate 11 and holding a plurality of the objects to be fixed P in parallel are held and fixed to the object P (see FIG. 5). I have.

  In this embodiment, the substrate 11 extends long in a predetermined direction, and is on the surface side (upper surface side) of the substrate 11, and in the middle of the longitudinal direction, the mounted member 1 such as a vehicle body panel (see FIG. 5). A cylindrical clamp mounting column 13 for mounting the clamp 10 is provided protruding. A bolt insertion hole 13a is formed in the clamp mounting column 13 so as to penetrate the substrate 11 (see FIGS. 3 and 5). A plurality of bolt engaging claws 13b that engage with the stud bolt 3 (see FIG. 5) that is integrally projected are provided. Further, at both ends in the longitudinal direction on the back surface side of the substrate 11, blade-like pieces 15, 15 that elastically abut against the surface of the attached member 1 and suppress the play of the clamp 10 are provided.

  On the surface side of the substrate 11, a plurality of column portions 21 are erected at predetermined intervals along the longitudinal direction. In addition, the column parts 21 and 21 disposed diagonally opposite both ends in the longitudinal direction of the substrate 11 are formed lower than the other column parts 21. An upper space of the substrate 11 is divided by the plurality of column portions 21 and the clamp mounting column portion 13, and a plurality of receiving portions 20 are provided in parallel along the longitudinal direction of the substrate 11. The plurality of objects to be fixed P are held in parallel by the plurality of receiving portions 20 so that the axial direction thereof is orthogonal to the longitudinal direction of the substrate 11.

  Each receiving portion 20 is covered between a pair of adjacent column portions 21 and between the clamp mounting column portion (which constitutes a “column portion” in the present invention) 13 and a column portion 21 adjacent thereto. A plurality of support portions 22 formed to receive the fixed object P are provided along the axial direction of the fixed object P in a held state. In this embodiment, support portions 22 and 22 provided with arc-shaped support recesses 24 are respectively arranged on both sides along the longitudinal direction of the substrate 11, and the pair of support portions 22 and 22 are arranged in each row. The receiving part 20 is comprised.

  Further, the support portions 22 provided on one side of each receiving portion 20 and the support portions 22 provided on the other side are arranged side by side along the parallel direction of the receiving portion 20. A passage 30 extending between the plurality of receiving portions 20 is formed between them (see FIGS. 1, 3, 4 and 5). In addition, in this embodiment, since there is the clamp mounting column 13 in the middle of the passage 30, the passage 30 is divided in the middle and divided into two.

  Further, in this embodiment, since the adjacent support portions 22 are arranged along the parallel direction of the receiving portion 20, the passage 30 extends linearly along the longitudinal direction of the substrate 11. However, the present invention is not limited to this. For example, the interval between the support portions 22 arranged in the axial direction (here, the interval between the pair of support portions 22 and 22 adjacent in the axial direction) differs between the receiving portions 20 arranged in parallel. Alternatively, the passage 30 only needs to be formed so as to communicate between the plurality of receiving portions 20 through the support portions 22 arranged in the axial direction.

  Further, at least one of the support portions 22 arranged along the axial direction of each receiving portion 20 is provided with a holding claw 26 that holds and holds the fixed object P. In this embodiment, a holding claw 26 extends obliquely downward from the upper end of the column portion 21 of the one support portion 22 in the axial direction toward the support recess 24, and the fixed object P is retained and held at this portion. It is supposed to be. In addition, the holding claw 26 is not provided in the other support part 22 in the axial direction, and the object P is simply received and supported by the support recess 24.

  Further, in this embodiment, holding claws 26 and 26 are respectively provided on one support portion 22 of each receiving portion 20 except for the receiving portions 20 located on the left and right sides of the clamp mounting column portion 13. And the support part 22 in which the holding nail | claw 26 was provided is shifted in the axial direction so that it may not adjoin the support part 22 in which the holding claw 26 of the other adjacent receiving part 20 was provided. The receiving portions 20 and 20 on both sides of the clamp mounting column 13 are fixed by holding convex portions 13c and 13c protruding from both side surfaces of the clamp mounting column 13 and holding claws 26 adjacent thereto. The object P is retained and retained. Further, a notch groove 25 is formed at the bottom of each support recess 24, thereby making the column portion 21 provided on the side of the support recess 24 easy to be bent, and the fixed object P in the receiving portion 20. Is easier to insert.

  On the other hand, the passage 30 intersects the axial direction of the fixed object P along the parallel direction of the plurality of receiving portions 20 between the support portions 22 and 22 and on the surface side of the central portion in the width direction of the substrate 11. It has a shape that extends so long. More specifically, the passage 30 includes a flat bottom surface 31 extending along the parallel direction of the receiving portion 20, and both inner side surfaces 32 extending perpendicularly to the bottom surface 31 along both longitudinal edges of the bottom surface 31. , 32 (see FIG. 1 and FIG. 4B), forming a concave groove shape with a constant width, and being cut off by the clamp mounting column 13 on the way, but reaching the longitudinal end of the substrate 11. As a result, both ends in the longitudinal direction of the substrate 11 are open. The bottom surface 31 of the groove-shaped passage 30 is formed to be lower than the support surface of the support recess 24 of the support portion 22 (see FIGS. 2 and 4). In addition, the passage 30 in this embodiment has a concave groove shape with a constant width, but the inner side surface 32 may be an inclined surface, or the bottom surface 31 may be an arcuate surface. What is necessary is just to extend in those parallel directions.

  Then, a foamed resin such as foamed polyurethane, foamed polypropylene, foamed polyethylene, and polystyrene foam is attached to the bottom surface 31 along the passage 30, and the bottom surface 31 of the passage 30 is held by each receiving portion 20. An elastic support portion 40 that comes into contact with the fixed object P is provided. Since the elastic support portion 40 is provided along the passage 30, the elastic support portion 40 has a shape extending long so as to intersect the axial direction of the fixed object P along the parallel direction of the plurality of receiving portions 20. . Further, as shown in FIGS. 2, 4 (a), and 5, the elastic support portion 40 is formed so as to be positioned above the support surface of the support recess 24 provided in each support portion 22. When the fixed object P is inserted into the receiving part 20 and enters the support recess 24 of each support part 22, the elastic support part 40 is compressed so that the fixed object P is elastically supported. It has become.

  The elastic support portion 40 is formed by adhering an elastic resin material pre-formed to fit the shape of the passage by a method such as adhesion or fitting, instead of being formed by adhering foam resin. You can also

  Further, each component of the clamp 10 other than the elastic support portion 40 is integrally formed with a synthetic resin such as polyethylene, polypropylene, polyamide, polyacetal, polybutylene terephthalate, or the like.

  Next, the method of using the clamp 10 of the present invention and the operation and effect will be described.

  First, the manufacturing process of the clamp 10 will be described. That is, a part including the substrate 11 and the plurality of receiving parts 20 is integrally formed by a mold and an injection molding machine (not shown), the part is taken out from the mold, and then along the passage 30 extending in a groove shape. Then, foamed resin such as foamed polyurethane is linearly extruded from a nozzle or the like of a molding machine (not shown) and attached.

  At this time, the passage 30 extends across the plurality of receiving portions 20 between the support portions 22 and 22 that are divided and arranged in the axial direction of the fixed object P along the parallel direction of the receiving portions 20. It is formed as follows. Therefore, it is possible to continuously fill the foamed resin along the passage 30 without interruption, and it can be attached to the bottom surface 31 of the passage 30, and the elastic support portion 40 is formed at a time for the plurality of receiving portions 20 arranged in parallel. Therefore, the manufacturing workability of the clamp 10 can be improved.

  Instead of the foam resin, the elastic support material 40 is provided by attaching an elastic resin material preliminarily formed into a shape suitable for the passage 30 by means such as adhesion and fitting along the passage. You can also. Even in this case, since the elastic support portion 40 can be provided at once over the plurality of receiving portions 20, the manufacturing workability can be improved.

  And if the to-be-fixed object P is inserted from the upper opening of each receiving part 20 of such a clamp 10, holding nail | claw 26 provided in one support part 22 of the axial direction of each receiving part 20 will be bent. The fixed object P is inserted into the receiving portion 20. Thereafter, when the fixed object P passes through the tip of the holding claw 26, the bent holding claw 26 is elastically restored, and the fixed object P enters the support recesses 24 of the support portions 22 and 22. Then, the fixed object P comes into contact with the elastic support part 40, the elastic support part 40 is compressed, the bottom peripheral surface of the fixed object P is elastically supported, and the inner periphery of the support recess 24 is The fixed object P abuts, the side peripheral surface of the fixed object P is held, and the tip of the holding claw 26 that has been elastically restored engages with the upper peripheral surface of the fixed object P. P is held out. Moreover, in the support part 22 of each receiving part 20 where the holding claw 26 is not provided, the side part of the fixed object P is held by the support recessed part 24.

  In addition, in the receiving portions 20 and 20 on both sides of the clamp mounting column portion 13 of the clamp 10, the holding convex portion 13 c and the holding claw 26 projecting from the side surface of the clamp mounting column portion 13 are arranged on the upper periphery of the fixed object P. The pair of left and right holding claws 26, 26 engage with the upper peripheral surface of the fixed object P and hold it in place so that it is engaged with the surface and prevented from coming off. ing.

  Thus, in this clamp 10, the elastic support part 40 which consists of foamed resin is provided in the channel | path 30 between the support parts 22 and 22 arranged in the axial direction, and this elastic support part 40 is to-be-fixed. Since the fixed object P is elastically held between the holding claw 26 that elastically abuts on the P and holds the fixed object P in place, the fixed object P is held without looseness. In addition, even if the outer diameter varies due to dimensional errors or types of the fixed object P, the variation in the outer diameter is effectively absorbed by the elastic support portion 40 made of foamed resin, thereby improving versatility. be able to. In addition, the to-be-fixed object P is hold | maintained without rattling, and the hitting sound produced by the position shift, vibration, etc. of the to-be-fixed object P can be prevented.

  Further, since the elastic support portion 40 intersects the axial direction of the fixed object P and extends along the passage 30, even if a force along the axial direction acts on the fixed object P, the elastic support portion 40. The frictional force can effectively prevent the displacement of the fixed object P in the axial direction.

  Further, since the elastic support portion 40 extends long along the passage 30 and is fixed to the bottom surface 31 of the passage 30 with a large area, even if a large force acts in the axial direction of the fixed object P, the elastic support portion 40 is peeled off. Can be difficult.

  Moreover, in this embodiment, the support part 22 provided with the holding claw 26 is shifted in the axial direction so as not to be adjacent to each other between the adjacent receiving parts 20. Therefore, even when the support portion 22 provided with the holding claw 26 is bent when inserting the fixed object P, it is possible to prevent the adjacent receiving portions 20 from being bent and interfere with each other. Even if the interval in the parallel direction of 20 is narrowed, the object P can be inserted, the clamp 10 can be made compact, and the arrangement interval of the objects P can be narrowed.

  After holding the fixed object P as described above, as shown in FIG. 5, the stud bolt 3 protruding from the mounting member 1 such as a vehicle body panel is inserted into the bolt mounting portion 13 of the clamp mounting portion 13 of the clamp 10. When inserted into the hole 13a, the bolt engaging claw 13b is engaged with the thread groove on the outer periphery of the stud bolt 3, and the blade-like pieces 15 and 15 of the clamp 10 are elastically brought into contact with the surface of the mounted member 1 to be covered. The clamp 10 can be attached to the attachment member 1 without rattling. It is also possible to fix the clamp 10 to the attachment member 1 in advance and insert and hold the object P to be fixed thereto.

  FIG. 6 shows a second embodiment of the clamp of the present invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the clamp 10 </ b> A of this embodiment, a protrusion 35 extending along the passage 30 is provided in the center of the width direction of the bottom surface 31 of the passage 30 (the same direction as the axial direction of the fixed object P). Then, foamed resin is attached to the bottom surface 31 of the passage 30 so as to cover the protrusion 35, and the elastic support portion 40 shown in FIG. 6 is formed. The protrusion 35 of this embodiment has a long and narrow streak shape with an arc cross section provided at a predetermined height from the bottom surface 31 of the passage 30, but is not limited thereto, and is a protrusion with an angular cross section or the like. There may be.

  In this embodiment, since the foamed resin is filled in the passage 30 so as to cover the protrusion 35 along the passage 30 and the elastic support portion 40 is formed, the foamed resin is equal to the volume of the protrusion 35. The elastic support portion 40 can be raised by the height of the ridge 35, the height of the elastic support portion 40 can be increased, and the surface of the ridge has a foamed resin. Makes it possible to increase the contact area of the foamed resin and make it difficult to peel the elastic support portion 40 from the bottom surface 31 of the passage 30.

  FIG. 7 shows a third embodiment of the clamp of the present invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the clamp 10 </ b> B of this embodiment, a groove 36 extending along the passage 30 is provided at the center in the width direction of the bottom surface 31 of the passage 30. When the foamed resin is filled into the passage 30, the groove 36 is filled so that the foamed resin enters, and the elastic support portion 40 shown in FIG. 7 is formed. The groove 36 of this embodiment has a so-called dovetail shape in which the upper opening on the bottom surface 31 side of the passage 30 is narrowly closed and the lower part is wider than that, but is limited to this. is not.

  In this embodiment, as described above, since the foamed resin enters the groove 36 formed along the passage 30 to form the elastic support portion 40, the contact area of the foamed resin is increased. Thus, the elastic support portion 40 can be made difficult to peel off from the bottom surface 31 of the passage 30.

  FIG. 8 shows a fourth embodiment of the clamp of the present invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The clamp 10 </ b> C of this embodiment is provided with a protrusion 35 extending along the passage 30 at the center in the width direction of the bottom surface 31 of the passage 30. A pair of grooves 36, 36 extending along the passage 30 are provided on both sides. The foamed resin covers the protrusions 35 of the passage 30 and enters the pair of grooves 36, 36, respectively, so that the elastic support portion 40 shown in FIG. 8 is formed. The ridge 35 has a circular arc shape in the same manner as the clamp 10A of the second embodiment, and the groove 36 has a dovetail shape similar to the clamp 10B of the third embodiment, but is limited to these aspects. is not.

  In this embodiment, the protrusion 35 can reduce the filling amount of the foamed resin, and the height of the elastic support portion 40 can be increased. Further, both the protrusion 35 and the groove 36 allow the foam resin to be expanded. , The elastic support part 40 can be made difficult to peel off from the bottom surface 31 of the passage 30.

  FIG. 9 shows a fifth embodiment of the clamp of the present invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted. In the clamp according to this embodiment, among the support portions 22 of the plurality of receiving portions 20, at the bottom portion of at least one support portion 22, an elastic piece that elastically contacts and supports the bottom portion of the fixed object P is formed. Has been.

  The bottom of the predetermined support portion 22 of the clamp 10D shown in FIG. 9A can be bent by extending from one inner surface 32 of the passage 30 so as to be curved in an arc shape toward the upper holding claw 26. A cantilever-like elastic piece 37 is formed.

  On the other hand, at the bottom of the predetermined support portion 22 of the clamp 10E shown in FIG. 9 (b), the center portion has an arc shape, and both ends thereof are connected to the bottom surface 31 and the inner side surface of the passage 30, respectively. Frame-shaped elastic pieces 38 are formed.

  The elastic support portions 40 provided on the respective clamps 10D and 10E are located above the bottom of the elastic piece 37 having a cantilever shape and the bottom of the elastic piece 38 having a frame shape. Is formed.

  And in this embodiment, since the bottom part of the to-be-fixed object P hold | maintained at the receiving part 20 is supported by the elastic support part 40 which consists of foamed resins, it is also supported by each elastic piece 37,38. The fixed object P can be stably held.

10, 10A, 10B, 10C, 10D, 10E Clamp 11 Substrate 20 Receiving part 22 Supporting part 26 Holding claw 30 Passage 31 Bottom face 35 Projection line 36 Groove 37, 38 Elastic piece 40 Elastic supporting part P Fixed object

Claims (7)

A clamp for holding and fixing an object to be fixed in a linear, tubular or rod shape,
A substrate and a plurality of receiving portions that are provided in parallel on the substrate and hold a plurality of the fixed objects in parallel;
Each of the receiving portions has a plurality of support portions formed so as to receive the object to be fixed between a pair of pillars along the axial direction of the object to be fixed in a held state. At least one of the plurality of support portions disposed along the holding portion is provided with a holding claw for retaining the object to be fixed.
Between each support part arrange | positioned in the axial direction of the said to-be-fixed object, the channel | path extended in those parallel directions over several receiving parts is formed,
A clamp characterized in that an elastic support portion made of an elastic resin is provided on the bottom surface along the passage, and the elastic support portion abuts on the object to be fixed held by the receiving portions.   The clamp according to claim 1, wherein the support portions provided with the holding claws are shifted in the axial direction so as not to be adjacent to each other between adjacent receiving portions.   The clamp according to claim 1, wherein the elastic support portion is made of foamed resin.   The clamp according to claim 3, wherein a protrusion is provided on a bottom surface of the passage along the passage, and the foamed resin is attached to cover the protrusion to form the elastic support portion. .   The clamp according to claim 3, wherein a groove is formed in the bottom surface of the passage along the passage, and the foamed resin is filled into the groove to form the elastic support portion.   On the bottom surface of the passage, a protrusion provided along the passage and a groove provided on at least one side of the protrusion are formed, and the foamed resin covers the protrusion, The clamp according to claim 3, wherein the elastic support portion is formed by entering the groove.   The elastic piece which elastically contacts and supports the bottom part of the said to-be-fixed object is formed in the bottom part of the at least 1 support part among the support parts of the said receiving part. Clamp described in one.