WO2020218034A1 - クランプ - Google Patents

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Publication number
WO2020218034A1
WO2020218034A1 PCT/JP2020/016165 JP2020016165W WO2020218034A1 WO 2020218034 A1 WO2020218034 A1 WO 2020218034A1 JP 2020016165 W JP2020016165 W JP 2020016165W WO 2020218034 A1 WO2020218034 A1 WO 2020218034A1
Authority
WO
WIPO (PCT)
Prior art keywords
holding portion
deformation
long member
fixed
rigidity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/016165
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
達也 奈良
昭仁 東原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Publication of WO2020218034A1 publication Critical patent/WO2020218034A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/14—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using wedges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/02—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
    • F16L3/04—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing and pressing it against a wall or other support

Definitions

  • the present disclosure relates to a clamp for fixing a long member.
  • Patent Documents 1 to 3 propose clamps for fixing long members such as rods and pipes by utilizing elastic deformation of a resin material.
  • the clamp that utilizes the elastic deformation of the resin material has low followability to the diameter variation of the long member to be fixed. Specifically, when the diameter of the long member is small, the holding force is small, and when the diameter is large, the resin material is plastically deformed and the holding force is lowered.
  • the clamp that utilizes the elastic deformation of the resin material creeps and deforms after long-term use, and the holding force gradually decreases.
  • the present disclosure includes a deformation holding portion and a fixed holding portion in a clamp for fixing a long member to a member to be attached.
  • the deformation holding portion is elastically deformed by being pushed by the long member when the long member comes into contact with it.
  • the fixed holding portion is provided on the side where the deformation holding portion is displaced by elastic deformation, and the rigidity in the direction in which the deformation holding portion is elastically deformed and displaced is higher than that of the deformation holding portion.
  • the fixed holding portion limits the elastic deformation of the deformation holding portion.
  • the fixed holding portion is provided with a low-rigidity portion having a lower rigidity than other portions at a portion in contact with the deformation holding portion.
  • the deformation holding portion that is elastically deformed by contact with the long member is supported by the fixed holding portion. Then, the deformation of the low-rigidity portion makes it possible to absorb the dimensional variation of the long member, and it is possible to reliably hold the long member.
  • the deformation holding portion is supported by the fixed holding portion having high rigidity, even if the deformation holding portion is plastically deformed or creep deformed, the holding force of the long member by the deformation holding portion is increased. It is possible to suppress the decrease.
  • FIG. 2 is a perspective view of the clamp, the long member, and the attached member of this embodiment. It is a top view of a clamp. It is a bottom view of a clamp. 2 is a sectional view taken along line IV-IV of FIGS. 2 and 3. It is a figure which shows the state before the long member is fixed by a clamp. It is a figure which shows the state which a long member was fixed by a clamp. It is an enlarged view of the deformation holding part, the fixed holding part, and the low rigidity part in FIG. It is an enlarged view of the deformation holding part, the fixed holding part, and the low-rigidity part when the diameter of a long member is large.
  • the clamp is applied to a vehicle air conditioner.
  • the direction connecting the front side and the back side of the paper surface is the longitudinal direction of the long member 20, and in FIGS. 2 and 3, the vertical direction of the paper surface is the long member 20. Longitudinal.
  • the clamp 10 of the present embodiment is used to attach the long member 20 to the attached member 30.
  • the long member 20 is an elongated long object such as a rod body or a pipe body, and for example, a pipe of a vehicle air conditioner can be used.
  • the long member 20 of the present embodiment has a circular cross section.
  • the attached member 30 is a member to which the long member 20 is attached, and for example, an air conditioning case for accommodating a component of a vehicle air conditioner can be used.
  • the clamp 10 is made of a synthetic resin such as polypropylene.
  • the clamp 10 can be manufactured by resin molding using a mold.
  • the vertical direction of FIG. 1 can be the die cutting direction.
  • the clamp 10 includes a main body 11.
  • the main body portion 11 is provided with an engaging portion 12 and an accommodating portion 13.
  • the engaging portion 12 is a portion for fixing the clamp 10 to the mounted member 30, and is formed so as to be hooked on an engaging portion (not shown) of the mounted member 30.
  • the accommodating portion 13 is formed in a U-shape or a U-shape with one end open, and constitutes a space for accommodating the long member 20. A part of the long member 20 in the longitudinal direction is accommodated in the accommodating portion 13.
  • the housing portion 13 is provided with a deformation holding portion 14 and a fixed holding portion 15.
  • the deformation holding portion 14 and the fixing holding portion 15 are used to hold the long member 20 fixed to the attached member 30.
  • two sets of the deformation holding portion 14 and the fixed holding portion 15 are provided around one long member 20. That is, two sets of the deformation holding portion 14 and the fixed holding portion 15 are provided for one long member 20.
  • the two sets of the deformation holding portion 14 and the fixed holding portion 15 are arranged at symmetrical positions with the long member 20 interposed therebetween.
  • the deformation holding portion 14 is provided so as to protrude from the plate surface of the accommodating portion 13.
  • the deformation holding portion 14 projects in the direction in which the long member 20 is inserted.
  • the deformation holding portion 14 is formed in a plate shape.
  • the plate surface of the deformation holding portion 14 is arranged along the longitudinal direction of the long member 20.
  • the plate surface of the deformation holding portion 14 is parallel to the longitudinal direction of the long member 20.
  • a pair of deformation holding portions 14 are provided for one long member 20.
  • the pair of deformation holding portions 14 are arranged so that their plate surfaces are parallel to each other.
  • the distance between the pair of deformation holding portions 14 is shorter than the diameter of the long member 20.
  • the deformation holding portion 14 comes into contact with the long member 20 inserted into the accommodating portion 13.
  • the plate surface of the deformation holding portion 14 is in contact with the side surface of the long member 20 inserted into the accommodating portion 13.
  • the long member 20 is sandwiched between the pair of deformation holding portions 14.
  • the deformation holding portion 14 is elastically deformed by being pushed by the long member 20, and is displaced so that the tip spreads outward.
  • the pair of deformation holding portions 14 are displaced in a direction in which their tips are separated from each other by elastic deformation.
  • the fixed holding portion 15 is provided close to the deformed holding portion 14.
  • a predetermined gap is provided between the deformation holding portion 14 and the fixed holding portion 15.
  • the fixed holding portion 15 is provided in parallel with the deformed holding portion 14 in a state where it is not elastically deformed.
  • the fixed holding portion 15 is arranged outside the pair of deformed holding portions 14.
  • the fixed holding portion 15 is provided on the side where the deformation holding portion 14 pushed by the long member 20 is displaced by elastic deformation.
  • the elastically deformed deformation holding portion 14 comes into contact with the fixed holding portion 15.
  • a plurality of fixed holding portions 15 are provided for one deformation holding portion 14.
  • two fixed holding portions 15 are provided for one deformation holding portion 14.
  • the two fixed holding portions 15 are provided at positions corresponding to both ends of the deformed holding portion 14 in the longitudinal direction of the long member 20.
  • the fixed holding portion 15 is a rigid body and has higher rigidity than the deformed holding portion 14.
  • the fixed holding portion 15 has a higher rigidity than the deformed holding portion 14 in the direction in which the deformation holding portion 14 is elastically deformed and displaced, that is, in the direction intersecting the longitudinal direction of the long member 20.
  • the plate surface of the fixed holding portion 15 is arranged in a direction intersecting the longitudinal direction of the long member 20. As a result, the rigidity of the long member 20 in the radial direction can be increased.
  • the plate surface of the fixed holding portion 15 is arranged in a direction orthogonal to the longitudinal direction of the long member 20.
  • the opposite side of the fixed holding portion 15 facing the deformed holding portion 14 is in contact with the wall surface of the accommodating portion 13. This also makes it possible to increase the rigidity of the long member 20 of the fixed holding portion 15 in the radial direction.
  • the elastic deformation amount is zero, or the elastic deformation amount is smaller than that of the deformation holding portion 14.
  • the fixed holding portion 15 supports the deformed holding portion 14 that has been elastically deformed, and limits the elastic deformation of the deformed holding portion 14.
  • the fixed holding portion 15 is provided with a low-rigidity portion 16 at a portion facing the deformation holding portion 14.
  • the low-rigidity portion 16 is provided at a portion of the fixed holding portion 15 where the elastically deformed deformation holding portion 14 comes into contact.
  • the tip side of the elastically deformed deformation holding portion 14 comes into contact with the fixed holding portion 15. Therefore, the low-rigidity portion 16 is provided on the tip end side of the fixed holding portion 15.
  • a portion facing the deformation holding portion 14 is formed in a wedge shape or a V-shaped cross section.
  • the low-rigidity portion 16 has a lower rigidity than the other portions of the fixed holding portion 15.
  • the low-rigidity portion 16 is plastically deformed by the surface pressure received from the plate surface of the deformation holding portion 14.
  • the low-rigidity portion 16 has a smaller dimension in the longitudinal direction of the long member 20 toward the deformation holding portion 14.
  • the portion of the low-rigidity portion 16 facing the deformation holding portion 14 is a corner portion where the two surfaces intersect, and the contact area with the long member 20 is small.
  • the corner portion of the low-rigidity portion 16 facing the deformation holding portion 14 has an acute angle.
  • the plate surface of the deformation holding portion 14 displaced by elastic deformation (see FIG. 6) is inclined with respect to the plate surface of the deformation holding portion 14 that has not been elastically deformed (see FIG. 5).
  • the low-rigidity portion 16 is provided so that the plate surface of the deformed holding portion 14 in the elastically deformed state comes into contact with the plate surface, and is inclined with respect to the plate surface of the deformed holding portion 14 which is not elastically deformed.
  • the long member 20 is inserted into the accommodating portion 13 of the clamp 10.
  • the deformation holding portion 14 is pushed by the side surface of the long member 20.
  • the deformation holding portion 14 starts elastic deformation toward the outside.
  • the long member 20 begins to be held by the deformation holding portion 14 that has started elastic deformation.
  • the plate surface of the elastically deformed deformed holding portion 14 comes into contact with the fixed holding portion 15.
  • the deformation holding portion 14 is supported by the fixed holding portion 15 having high rigidity, and the deformation holding portion 14 is restricted from elastic deformation.
  • the deformation holding portion 14 is fixed in a state of being sandwiched between the long member 20 and the fixed holding portion 15.
  • the plate surface of the elastically deformed deformation holding portion 14 comes into contact with the low rigidity portion 16 of the fixed holding portion 15.
  • the long member 20 can be held by the reaction force caused by the low-rigidity portion 16 being crushed by the surface pressure received from the deformation holding portion 14.
  • the deformed holding portion 14 is sandwiched between the long member 20 and the fixed holding portion 15 to exert a wedge effect, and generates a large holding force with respect to the long member 20.
  • the deformation holding portion 14 that is elastically deformed by contact with the long member 20 is supported by the fixed holding portion 15 having high rigidity. Therefore, even if the deformation holding portion 14 is plastically deformed or creep deformed, it is possible to prevent the deformation holding portion 14 from reducing the holding force of the long member 20.
  • the low-rigidity portion 16 at the portion of the fixed holding portion 15 where the deformation holding portion 14 abuts, it is possible to absorb the variation in the diameter of the long member 20.
  • the diameter of the long member 20 is larger than that in the example shown in FIG.
  • the amount of deformation of the low-rigidity portion 16 is increased, so that the dimensional variation of the long member 20 can be absorbed and the long member 20 is reliably held. It becomes possible to do.
  • a plurality of fixed holding portions 15 are provided for one deformation holding portion 14.
  • the deformation holding portion 14 can be effectively supported by the fixed holding portion 15, and the holding of the long member 20 by the deformation holding portion 14 can be stabilized.
  • two sets of the deformation holding portion 14 and the fixed holding portion 15 are provided so as to sandwich one long member 20.
  • the long member 20 can be stably held from both sides by the pair of deformation holding portions 14.
  • the low-rigidity portion 16 is provided so as to be inclined corresponding to the plate surface of the deformed holding portion 14 which is elastically deformed.
  • the front end side plate surface of the deformation holding portion 14 displaced by the elastic deformation can be appropriately brought into contact with the low rigidity portion 16, and the contact area can be increased.
  • the plate surface of the deformation holding portion 14 is provided along the longitudinal direction of the long member 20, the plate surface of the deformation holding portion 14 comes into contact with the side surface of the long member 20. Therefore, even if a part of the portion of the long member 20 held by the deformation holding portion 14 has a reduced diameter due to bending or the like, a sufficient holding force is provided by the other portion of the long member 20. Can be obtained.
  • each component of the clamp 10 is formed in one direction (that is, the vertical direction in FIG. 1). Therefore, undercutting is not required when molding the clamp 10 with resin, and the mold can be molded in one direction. As a result, it is possible to suppress the complicated manufacturing process of the clamp 10, and it is possible to manufacture the clamp 10 at low cost.
  • the tip side of the low-rigidity portion 16 facing the deformation holding portion 14 has an acute angle. It does not have to be, and it may be slightly curled.
  • the side of the fixed holding portion 15 facing the deformation holding portion 14 is in contact with the wall surface of the accommodating portion 13, but the side of the fixed holding portion 15 facing the deformation holding portion 14 is not necessarily in contact with the wall surface. The opposite side does not have to be in contact with the wall surface of the accommodating portion 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Supports For Pipes And Cables (AREA)
PCT/JP2020/016165 2019-04-25 2020-04-10 クランプ Ceased WO2020218034A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-084009 2019-04-25
JP2019084009A JP6981446B2 (ja) 2019-04-25 2019-04-25 クランプ

Publications (1)

Publication Number Publication Date
WO2020218034A1 true WO2020218034A1 (ja) 2020-10-29

Family

ID=72941961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/016165 Ceased WO2020218034A1 (ja) 2019-04-25 2020-04-10 クランプ

Country Status (2)

Country Link
JP (1) JP6981446B2 (https=)
WO (1) WO2020218034A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000346245A (ja) * 1999-06-04 2000-12-15 Piolax Inc 棒状体ホルダー
JP2002031270A (ja) * 2000-07-17 2002-01-31 Nippon Stud Welding Co Ltd チューブクランプ
JP2011247350A (ja) * 2010-05-27 2011-12-08 Nippon Pop Rivets & Fasteners Ltd 長尺部材の保持具

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000346245A (ja) * 1999-06-04 2000-12-15 Piolax Inc 棒状体ホルダー
JP2002031270A (ja) * 2000-07-17 2002-01-31 Nippon Stud Welding Co Ltd チューブクランプ
JP2011247350A (ja) * 2010-05-27 2011-12-08 Nippon Pop Rivets & Fasteners Ltd 長尺部材の保持具

Also Published As

Publication number Publication date
JP6981446B2 (ja) 2021-12-15
JP2020180650A (ja) 2020-11-05

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