Holding device

The holding device with a vibration-damping member enhances stability by preventing disconnection under excessive force and reducing vibration transmission, addressing the risk of disengagement in existing designs.

WO2025203813A1PCT designated stage Publication Date: 2025-10-02PIOLAX INC
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Patent Information

Application Number
PCT/JP2024/038571
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-29
Filing Date
2024-10-29
Publication Date
2025-10-02

AI Technical Summary

Technical Problem

Existing holding devices risk disconnecting when subjected to excessive external forces due to the potential disengagement of insertion ribs from grooves.

Method used

A holding device design featuring a fixing member, a holding member, and a vibration-damping member made of an elastic material, with a housing portion and grooves/holes to secure the connection, utilizing a vibration-damping member to separate the fixing and holding members and enhance bonding strength.

Benefits of technology

The design prevents the disconnection of the holding and fixing members under excessive force, ensuring a stable attachment and reducing vibration transmission.

✦ Generated by Eureka AI based on patent content.

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Abstract

A holding device 10 includes a fixed member 12 fixed to a mounting member, a holding member for holding a long member, and a vibration control member 16 formed of an elastic material and provided at least between the fixed member 12 and the holding member 14. The holding member 14 has a housing part for housing a part of the fixed member 12. The fixed member 12 has a shaft part rising from the fixing part, and a flange part that projects from the shaft part in a direction crossing the axial direction and that is housed in the housing part. The vibration control member is disposed between the housing part and the flange part so as to separate the housing part and the flange part, and a groove part and / or a hole part is formed on the fixed-part side of the flange part. The vibration control member 16 is configured to enter the groove part and / or the hole part.
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Description

holding device

[0001] The present invention relates to a holding device that holds an elongated member and is attached to an attachment member.

[0002] Patent Document 1 discloses a holder including a holding member for holding an elongated member, a fixing member for engaging with a mounting panel, and a vibration-damping member attached to the fixing member and held by the holding member. The vibration-damping member has a pair of insertion grooves on both sides. The holding member has a pair of insertion ribs that are inserted into the pair of insertion grooves, respectively. The direction in which the elongated member inserts the holding member is perpendicular to the direction in which the insertion ribs protrude.

[0003] Japanese Patent Application Laid-Open No. 2022-96575

[0004] In the technology described in Patent Document 1, when an external force is applied from the long member to the holding member in a direction that causes the long member to slip out of the holding member, the insertion rib gets caught in the insertion groove, but if an excessive external force is applied further, there is a risk that the insertion rib will come out of the insertion groove.

[0005] An object of the present invention is to provide a holding device that makes it difficult for the holding member and the fixing member to come off the connection when an excessive external force is applied.

[0006] To solve the above problems, one aspect of the present invention provides a holding device comprising: a fixing member fixed to a mounting member; a holding member that holds an elongated member; and a vibration-damping member formed of an elastic material and disposed at least between the fixing member and the holding member. The holding member has a holding portion that holds the elongated member and a housing portion that houses a portion of the fixing member and connects the holding portion to the fixing member via the vibration-damping member. The fixing member has a fixing portion that is fixed to the mounting member, a shaft portion that stands upright from the fixing portion, and a flange portion that extends from the shaft portion in a direction intersecting the axial direction and is housed in the housing portion. The housing portion has an opening through which the shaft portion is inserted. The vibration-damping member is disposed between the housing portion and the flange portion to separate them, and at least one of a groove and a hole is formed on the fixing portion side of the flange, and the vibration-damping member is configured to fit into at least one of the groove and the hole.

[0007] According to the present invention, it is possible to provide a holding device that makes it difficult for the connection between the holding member and the fixing member to come off when an excessive external force is applied.

[0008] Fig. 2 is a perspective view of a holding device of an embodiment. Fig. 3 is a front view of a fixing member and a holding member, showing the holding device excluding a vibration-isolating member. Fig. 4 is a cross-sectional view of the holding device shown in Fig. 1 along line A-A. Fig. 5 is a diagram for explaining the operation of the holding device when the elongated member is lifted. Fig. 6 is a cross-sectional view of a holding device of a modified example.

[0009] FIG. 1 is a perspective view of a retention device 10 according to an embodiment. The retention device 10 is used to attach an elongated member to a mounting member. For example, the retention device 10 is used to secure a pipe to a vehicle body panel. The elongated member may be a pipe or a rod-shaped member, and the mounting member may be a vehicle body panel or an interior member. In the embodiment, the retention device 10 is shown attached to a mounting hole formed in a vehicle body panel. Furthermore, the retention device 10 is not limited to being attached to a vehicle body panel located on the underside, and may also be attached to a vehicle body panel that intersects horizontally.

[0010] The holding device 10 includes a fixing member 12, a holding member 14, and a vibration-damping member 16. The fixing member 12 is fixed to the mounting member by a locking claw portion 26. The holding member 14 holds the elongated member by a holding portion 34. The vibration-damping member 16 is formed from an elastic material that is more flexible than the fixing member 12 and the holding member 14, for example, an elastomer material.

[0011] The vibration-isolating member 16 is provided at least between the fixed member 12 and the holding member 14, and prevents contact between the hard fixed member 12 and the holding member 14. A part of the fixed member 12 and the connecting portion 62 are provided inside the housing portion 50 of the holding member 14. As a result, the fixed member 12 and the holding member 14 are connected via the vibration-isolating member 16.

[0012] The first seat 64 and the second seat 66 of the vibration-isolating member 16 seat on the mounting member, softening the contact between the retaining device 10 and the mounting member.

[0013] 2 is a front view of the fixing member 12 and the holding member 14, showing the holding device 10 without the vibration-isolating member 16. The fixing member 12 has a fixing portion 20, a shaft portion 22, a flange portion 24, a first outer wall portion 30a, a second outer wall portion 30b, a first wall portion 32a, a second wall portion 32b, a first groove portion 33, and a second groove portion 35. As shown in FIG. 1, the vibration-isolating member 16 covers the front and back surfaces of the fixing member 12 within the accommodation portion 50, and is provided so that the flange portion 24 is not exposed.

[0014] The fixing portion 20 is formed in a columnar shape and is inserted into a mounting hole of the mounting member. The fixing portion 20 has a pair of locking claws 26 that are flexible in the radial direction. The shaft portion 22 stands upright from the upper end of the fixing portion 20 and is formed in a rectangular columnar shape. The direction along the central axis of the shaft portion 22 is called the axial direction, and the axial direction is the direction in which the shaft portion 22 stands upright from the fixing member 12. The fixing member 12 is symmetrical with respect to the axial direction.

[0015] The flange portion 24 projects radially outward from the upper end of the shaft portion 22. The flange portion 24 extends in a direction that intersects the axial direction and in a direction in which the multiple holding portions 34 are aligned. The flange portion 24 extends in a flat plate shape in a direction perpendicular to the axial direction.

[0016] The first groove 33 is formed on the back side of the flange 24, i.e., on the flange 24 on the fixing portion 20 side. The first outer wall 30a and the second outer wall 30b (when not distinguishing between them, referred to as the "outer wall 30") hang down from the outer edge of the flange 24 and form the outer surface of the first groove 33. The outer wall 30 hangs down in the axial direction parallel to the shaft 22. In other words, the first groove 33 is formed by the shaft 22, the flange 24, and the outer wall 30, and is formed on the fixing portion 20 side of the flange 24, i.e., on the back side of the flange 24.

[0017] The first wall portion 32a and the second wall portion 32b stand upright from the surface 28 of the flange portion 24. The first wall portion 32a and the second wall portion 32b are positioned radially inwardly of the first outer wall portion 30a and the second outer wall portion 30b. A second groove portion 35 is formed between the first wall portion 32a and the second wall portion 32b. The first wall portion 32a and the second wall portion 32b constitute the inner wall of the second groove portion 35.

[0018] The holding member 14 has a holding portion 34, a base portion 36, a connecting hole portion 46, and a storage portion 50. The holding portion 34 has a side wall portion 38, a retaining portion 40, an elastic arm portion 42, and a curved bottom surface 44. The holding portion 34 holds an elongated member. A plurality of holding portions 34 are arranged in a line along a direction perpendicular to the axial direction. The direction in which the plurality of holding portions 34 are arranged is called the parallel direction. The storage portion 50 and the holding portions 34 are also arranged in the parallel direction.

[0019] The side walls 38 are erected from the base 36 and are disposed facing each other at equal intervals. A pair of retaining portions 40 extend inward from adjacent side walls 38 to approach each other and then hang downward. The retaining portions 40 prevent the elongated member from moving in the direction of removal.

[0020] The pair of elastic arms 42 extend inward from adjacent sidewalls 38 toward each other and then hang down. The elastic arms 42 can elastically contact elongated members of different diameters. The curved bottom surface 44 is located at the center of the underside of the holding portion 34. The connecting hole 46 has a flat plate parallel to the base 36, forming a gap on the back side of the base 36.

[0021] The accommodation portion 50 is located above the fixing portion 20 and forms an accommodation space for the flange portion 24. The accommodation portions 50 are located side by side in a direction perpendicular to the axial direction, similar to the multiple holding portions 34. The accommodation portion 50 has a bottom portion 52, a first protrusion 54, an opening 56, a ceiling surface 58, an inclined portion 59, and a second protrusion 60. The bottom portion 52 extends close to the shaft portion 22. The bottom portion 52 is formed with an opening 56 through which the shaft portion 22 is inserted. The bottom portion 52 faces the ceiling surface 58 and is disposed parallel to the ceiling surface 58. The second protrusion 60 protrudes downward from the center of the ceiling surface 58.

[0022] The first protrusion 54 extends from the bottom 52 toward the flange 24. The first protrusion 54 is located on the edge of the opening 56 and is located inside the first outer wall 30a and the second outer wall 30b. The first protrusion 54 is also recessed in the first groove 33 and faces the first outer wall 30a and the second outer wall 30b. In other words, the first protrusion 54 is positioned so as to overlap the first outer wall 30a and the second outer wall 30b in a direction perpendicular to the axial direction.

[0023] The flange portion 24 is housed in the housing portion 50 and is located between the bottom portion 52 and the ceiling surface 58. The housing portion 50 functions to connect the holding portion 34 to the fixed member 12 via the vibration-isolating member 16.

[0024] The second protrusion 60 is positioned between the first wall 32 a and the second wall 32 b, and faces and overlaps the first wall 32 a and the second wall 32 b in a direction perpendicular to the axial direction, i.e., in the parallel direction. The second protrusion 60 fits into the second groove 35. The second protrusion 60 can increase the rigidity of the ceiling surface 58 of the storage section 50.

[0025] The inclined portion 59 is formed so as to be inclined from the ceiling surface 58 to the side surface, thereby removing the corners inside the storage portion 50 and increasing the rigidity of the storage portion 50.

[0026] Figure 3 is a cross-sectional view of the retaining device 10 shown in Figure 1 taken along line A-A. Figure 3 also shows the retaining device 10 attached to a mounting member 18. A mounting hole 18a is formed in the mounting member 18. The fixing portion 20 is inserted into the mounting hole 18a and engages with the edge of the mounting hole 18a. The vibration-isolating member 16 has a connecting portion 62, a first seating portion 64, a second seating portion 66, an insertion portion 68, and an insertion portion 70.

[0027] The connecting portion 62 of the vibration-damping member 16 is disposed within the housing portion 50. The vibration-damping member 16 is disposed at least between the housing portion 50 and the flange portion 24, separating the housing portion 50 and the flange portion 24. This prevents the fixing member 12 and the holding member 14 from contacting each other, and allows vibrations to be damped between the elongated member and the vehicle body.

[0028] The first seat 64 is located below the holding portion 34 and seats on the mounting member 18. The second seat 66 is located below the accommodating portion 50 and seats on the mounting member 18. The first seat 64 and the second seat 66 are arranged with the fixing member 12 in between. The first seat 64 and the second seat 66 prevent the holding portion 34 and the accommodating portion 50 from hitting the mounting member 18 and generating abnormal noise. The upper end surface 27 of the fixing portion 20 is filled with the vibration-damping member 16.

[0029] The insertion portion 68 is inserted into the connecting hole portion 46, and the first seat portion 64 is integrally connected to the holding portion 34 by the insertion portion 68. The insertion portion 68 is formed across the multiple holding portions 34. When the holding portion 34 is lifted together with the elongated member in a direction away from the mounting member 18, the first seat portion 64 can follow the holding portion 34, preventing the holding portion 34 and the first seat portion 64 from separating. The connecting portion 62 and the second seat portion 66 sandwich the bottom 52 of the storage portion 50 from above and below.

[0030] The connecting portion 62 has an insertion portion 70 that fits into the first groove portion 33. This increases the bonding strength between the flange portion 24 of the fixing member 12 and the connecting portion 62 of the vibration-damping member 16. The first protrusion 54 of the accommodating portion 50 fits inside the insertion portion 70. A space recessed from bottom to top is formed inside the insertion portion 70, and the first protrusion 54 fits into this recessed space, supporting the base of the insertion portion 70. This increases the bonding strength between the accommodating portion 50 of the holding member 14 and the insertion portion 70 of the vibration-damping member 16.

[0031] The first outer wall portion 30a is provided facing the first protruding portion 54 in a direction perpendicular to the axial direction. The first outer wall portion 30a is positioned so as to overlap the first protruding portion 54 in the direction perpendicular to the axial direction. This positions the first outer wall portion 30a and the first protruding portion 54 so as to be hooked together.

[0032] The vibration-damping member 16 disposed in the housing portion 50, i.e., the connecting portion 62, covers the entire periphery of the shaft portion 22 and flange portion 24 of the fixing member 12 as shown in Figures 1 and 3. This prevents the shaft portion 22 and flange portion 24 from being exposed.

[0033] The manufacturing method of the holding device 10 will now be described. The fixing member 12 and the holding member 14 are molded separately. With the flange portion 24 housed in the housing portion 50, the fixing member 12 and the holding member 14 are placed in a mold, and the mold is filled with liquid vibration-damping material 16. Once the vibration-damping material 16 has solidified, the holding device 10 is completed.

[0034] 4 is a diagram for explaining the operation of the holding device 10 when the elongated member 72 is lifted. In FIG. 4, the shaft portion 22 and the flange portion 24 are shown by dashed lines in an upright state, but in reality they are slightly tilted to the left in the drawing.

[0035] The holding portion 34 located farthest from the accommodation portion 50 holds the elongated member 72. The elongated member 72 is in a lifted state due to a force in a direction away from the mounting member 18, and the holding portion 34 is lifted together with the elongated member 72.

[0036] At this time, the accommodation portion 50 also tilts in conjunction with the holding portion 34 and moves away from the fixing member 12. Because the insertion portion 70 is inserted into the first groove portion 33, the insertion portion 70 gets caught in the first groove portion 33. Therefore, even if the holding portion 34 receives an excessive load in a direction that moves it away from the mounting member 18, the vibration-damping member 16 is less likely to come off the first groove portion 33, and the connection between the fixing member 12 and the holding member 14 can be strengthened.

[0037] Furthermore, since the first protrusion 54 is recessed into the inside of the insertion portion 70, the strength of the insertion portion 70 is increased. Therefore, the insertion portion 70 is less likely to come off the first groove portion 33.

[0038] Furthermore, since the first protrusion 54 is positioned opposite the first outer wall portion 30a, the first protrusion 54 acts to catch on the first outer wall portion 30a via the vibration-proof member 16. This makes it difficult for the accommodation portion 50 to come off the flange portion 24.

[0039] Furthermore, because the second protrusion 60 faces the second wall 32b, it acts to catch on the second wall 32b via the vibration-damping member 16. Even if the accommodation section 50 is subjected to rotational torque, the rotational torque can be dispersed and received not only by the hooking of the insertion section 70 and the first groove 33 but also by the hooking action of the second protrusion 60 and the second wall 32b. This makes it even more difficult for the flange insertion section 70 to come off the first groove 33.

[0040] Fig. 5 is a cross-sectional view of a modified holding device 100. The holding device 100 shown in Fig. 5 is attached to the mounting member 18, and the multiple holding portions 34 are omitted because they have the same shape. The modified holding device 100 differs from the holding device 10 shown in Fig. 3 in the method of connecting the fixing member 112 and the vibration-isolating member 116.

[0041] The flange portion 124 has a hole 133 formed on the side of the fixing portion 20. An outer wall portion 130 hanging down from the outer edge of the flange portion 24 forms the outer surface of the hole 133. The hole 133 penetrates from the front to the back and may be a square hole or a round hole. The outer wall portion 130 is provided at a position overlapping the first protrusion 54 in the parallel direction.

[0042] The insertion portion 170 of the vibration-isolating member 116 fits into the hole 133 and protrudes from the front to the back. The vibration-isolating member 116 covers the front and back of the fixing member 112 inside the housing 50, and both ends of the insertion portion 170 are connected to the covering portions. This firmly bonds the fixing member 112 and the vibration-isolating member 116 inside the housing 50. A first groove 33 may be formed on the inner diameter side of the hole 133.

[0043] The present invention is not limited to the above-described embodiments and modifications, and various design changes and other modifications may be made to the embodiments and modifications based on the knowledge of those skilled in the art, and such modified embodiments may also be included within the scope of the present invention.

[0044] Although the embodiment has been described in which three holding portions 34 are provided side by side, the number is not limited to this. For example, the number of holding portions 34 may be one, two, or four or more.

[0045] In addition, in the embodiment, the opposing direction of the pair of locking claw portions 26 is perpendicular to the axial direction and the direction perpendicular to the parallel arrangement of the plurality of holding portions 34, but this is not limited to this. The opposing direction of the pair of locking claw portions 26 may also be along the parallel arrangement direction of the holding portions 34. In other words, the pair of locking claw portions 26 may be arranged to face each other in the parallel arrangement direction.

[0046] Furthermore, in the embodiment, the second groove 35 is formed on the surface of the flange 24, and the second protrusion 60 is formed on the ceiling surface 58 of the accommodating portion 50, but this is not limiting. For example, the second groove 35 may be formed on the ceiling surface 58 of the accommodating portion 50, and the second protrusion 60 may be formed on the surface of the flange 24. In other words, the second groove 35 is formed on one of the surface of the flange 24 and the ceiling surface 58 of the accommodating portion 50 facing the flange 24, and the second protrusion 60 that fits into the second groove 35 is formed on the other. In either case, the second protrusion 60 fits into the second groove 35.

[0047] The present invention relates to a holding device that holds an elongated member and is attached to an attachment member.

[0048] 10 Retaining device, 12 Fixed member, 14 Retaining member, 16 Vibration-damping member, 18 Mounting member, 20 Fixed portion, 22 Shaft portion, 24 Flange portion, 26 Locking claw portion, 28 Surface, 30 Outer wall portion, 30a First outer wall portion, 30b Second outer wall portion, 32a First wall portion, 32b Second wall portion, 33 First groove portion, 34 Retaining portion, 35 Second groove portion, 36 Base portion, 38 Side wall portion, 40 Anti-slip portion, 42 Elastic arm portion, 44 Curved bottom surface, 46 Connecting hole portion, 50 Storage portion, 52 Bottom portion, 54 First protrusion portion, 56 Opening portion, 58 Ceiling surface, 60 Second protrusion portion, 62 Connecting portion, 64 First seating portion, 66 Second seating portion, 68 Insertion portion, 70 Insertion portion, 72 Elongated member.

Claims

1. A holding device comprising: a fixing member fixed to a mounting member; a holding member for holding an elongated member; and a vibration-damping member formed of an elastic material and provided at least between the fixing member and the holding member, wherein the holding member has: a holding section for holding the elongated member; and a accommodating section for accommodating a part of the fixing member and connecting the holding section to the fixing member via the vibration-damping member, wherein the fixing member has: a fixing section fixed to the mounting member, a shaft section erected from the fixing section, and a flange section extending from the shaft section in a direction intersecting the axial direction and accommodated in the accommodating section, wherein the accommodating section has an opening through which the shaft section is inserted, the vibration-damping member being arranged between the accommodating section and the flange section so as to separate them, and wherein at least one of a groove section and a hole section is formed in the flange section facing the fixing section, and the vibration-damping member is configured to fit into the groove section or the hole section.

2. A holding device as described in claim 1, characterized in that the flange portion has a first groove portion formed on the fixed portion side, and the storage portion has a bottom portion that forms the opening, and a first protrusion portion that protrudes from the bottom portion toward the flange portion and fits into the first groove portion.

3. A holding device as described in claim 1 or 2, characterized in that a second groove portion is formed on one of the surface of the flange portion and the ceiling surface of the storage portion facing the flange portion, and a second protrusion portion that fits into the second groove portion is formed on the other.

Citation Information

Patent Citations

  • Vibration control type clip

    JP1997303621A

  • Clip for bar-type body

    JP2001343089A