WO2018013418A1 - Spring end cap with improved retention - Google Patents

Spring end cap with improved retention Download PDF

Info

Publication number
WO2018013418A1
WO2018013418A1 PCT/US2017/041074 US2017041074W WO2018013418A1 WO 2018013418 A1 WO2018013418 A1 WO 2018013418A1 US 2017041074 W US2017041074 W US 2017041074W WO 2018013418 A1 WO2018013418 A1 WO 2018013418A1
Authority
WO
WIPO (PCT)
Prior art keywords
planar
spring
end cap
circumferential surface
coil
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/US2017/041074
Other languages
French (fr)
Inventor
Felipe De Lima Zocca
Phani Krishna KALAPALA
Scott Strong
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.)
Schaeffler Technologies AG and Co KG
Schaeffler Group USA Inc
Original Assignee
Schaeffler Technologies AG and Co KG
Schaeffler Group USA Inc
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 Schaeffler Technologies AG and Co KG, Schaeffler Group USA Inc filed Critical Schaeffler Technologies AG and Co KG
Priority to JP2018551454A priority Critical patent/JP2019522756A/en
Priority to DE112017003495.7T priority patent/DE112017003495T5/en
Priority to CN201780037858.7A priority patent/CN109312801A/en
Publication of WO2018013418A1 publication Critical patent/WO2018013418A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/12—Attachments or mountings
    • F16F1/125—Attachments or mountings where the end coils of the spring engage an axial insert
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/06—Wound springs with turns lying in cylindrical surfaces
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/123—Wound springs
    • F16F15/1232—Wound springs characterised by the spring mounting
    • F16F15/12326—End-caps for springs

Definitions

  • the invention relates generally to a spring end cap, and more specifically to a spring end cap with improved retention
  • Example aspects broadly comprise a spring end cap including a central axis, first and second parallel planar ends, and first and second circumferential surfaces.
  • the planar ends are orthogonal to the central axis.
  • An outer diameter of the first planar end is larger than an outer diameter of the second planar end.
  • the first and second circumferential surfaces are disposed about the axis and between the planar ends.
  • the first circumferential surface is disposed between the first planar end and the second circumferential surface.
  • the first circumferential surface has a diameter smaller than a diameter of the second circumferential surface.
  • the diameter of the first circumferential surface is larger than the outer diameter of the second planar end. In an example embodiment, the diameter of the second circumferential surface is larger than the outer diameter of the second planar end.
  • the spring end cap has a first conical surface disposed about the axis and extending between the second circumferential surface and the second planar end. In an example embodiment, the spring end cap has a second conical surface disposed about the axis and extending between the first and second circumferential surfaces.
  • the spring end cap has a third planar surface.
  • the third planar surface is parallel to the first planar end, has an outer diameter equal to the outer diameter of the first planar end, and is disposed axially between the first planar end and the first circumferential surface.
  • the spring end cap has a third circumferential surface extending between the first planar end and the third planar surface.
  • the spring end cap has an undercut portion. The undercut portion has a third conical surface extending from the third planar surface towards the first planar end, a fourth planar surface parallel to the first planar end and extending from the third conical surface, and a partial toroidal surface connecting the fourth planar surface with the first circumferential surface.
  • the coil spring in an unassembled state, includes a first end coil with a first inner diameter and a second coil with a second inner diameter, larger than the first inner diameter. In an example embodiment, the first inner diameter is less than the diameter of the first circumferential surface. In some example embodiments, the coil spring includes at least one dead coil and a plurality of active coils. All of the at least one dead coil is in contact with the spring end cap and all of the plurality of active coils are devoid of contact with the spring end cap. In an example embodiment, the coil spring includes at least one transition coil extending from the at least one dead coil to the plurality of active coils. In an example embodiment, the coil spring is arcuately shaped.
  • Figure 1 is a cross-section view of a spring end cap with improved retention according to an example aspect
  • Figure 2 is detail cross-section view of the spring end cap of Figure 1 assembled with a spring showing interference
  • Figure 3 is a cross-section view of the spring assembly of Figure 2.
  • Figure 1 is a cross- section view of spring end cap 100 with improved retention according to an example aspect.
  • Spring end cap 100 includes a central axis 102 and parallel planar ends 104 and 106 orthogonal to the central axis. Outer diameter 108 of planar end 104 is larger than outer diameter 1 10 of planar end 106.
  • Spring end cap 100 also includes circumferential surfaces 112 and 114 disposed about axis 102 and between planar ends 104 and 106.
  • Circumferential surface 112 is disposed between planar end 104 and circumferential surface 114.
  • Surface 112 has diameter 116 smaller than diameter 118 of circumferential surface 114.
  • Diameter 116 of circumferential surface 112 is larger than diameter 1 10 of planar end 106.
  • Diameter 118 of circumferential surface 114 is larger than outer diameter 110 of planar end 106.
  • End cap 100 also includes conical surface 120 disposed about axis 102 and extending between circumferential surface 1 14 and planar end 106. End cap 100 also includes conical surface 122 disposed about axis 102 and extending between circumferential surfaces 112 and 114. End cap 100 has planar surface 124. Surface 124 is parallel to planer end 104. Surface 124 has outer diameter 126 equal to outer diameter 108 of planar end 104. Surface 124 is disposed axially between the planar end 104 and circumferential surface 112.
  • Spring end cap 100 includes circumferential surface 128 extending between planar end 104 and planar surface 124.
  • End cap 100 includes undercut portion 128.
  • Portion 128 includes conical surface
  • Undercut portion 128 also includes planar surface 132 parallel to planar end 104 and extending from conical surface 130. Undercut portion also includes partial toroidal surface 134 connecting planar surface 132 with circumferential surface 112.
  • FIG. 2 is detail cross-section view of spring end cap 100 of Figure 1 assembled with spring 202 showing interference.
  • Spring assembly 200 includes spring end cap 100 and coil spring 202 fixedly secured to spring end cap 100.
  • coil spring 202 includes end coil 204 with inner diameter 206 and coil 208 with inner diameter 210.
  • Inner diameter 210 is larger than inner diameter 206.
  • Inner diameter 206 is less than diameter 1 16 of circumferential surface 112.
  • Coil spring 202 includes dead coil 212 and active coils 214. By dead coil, we mean that adjacent spring coils rest upon one another such that there is no compression in that part of the spring.
  • Dead coil 212 is in contact with spring end cap 100 (as indicated by interference region 216).
  • Active coils 214 are devoid of contact with spring end cap 100.
  • Spring 202 includes transition coil 218 extending from dead coil 212 to active coils 214.
  • Figure 3 is a cross-section view of spring assembly 200 of Figure 2.
  • Coil spring 202 is arcuately shaped. In other applications (not shown), spring 202 may be a straight spring.
  • the two steps of interference between the spring and end cap improve retention of endcap 100 in spring 202. That is, the groove formed at surface 1 12 retains the endcap on the spring by retaining in two directions. For example, the spring is retained by the compression of coil 212 on surface 1 12 and the need to expand coil 212 over larger diameter surface 114 to remove the spring from the endcap.
  • the groove works in conjunction with a press-fit of transition coil 218 at surfaces 1 14 and 120. Axial lengths of surfaces 1 12 and 114 are selected based on wire diameter and number of dead coils. Active coils 214 are designed with diameters large enough to avoid contact with the endcap for improved durability, but the transition coil(s) must avoid aggressive transitions between diameters due to stress concerns but allow larger active coils and maximized interference with the end cap.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Abstract

A spring end cap includes a central axis, first and second parallel planar ends, and first and second circumferential surfaces. The planar ends are orthogonal to the central axis. An outer diameter of the first planar end is larger than an outer diameter of the second planar end. The first and second circumferential surfaces are disposed about the axis and between the planar ends. The first circumferential surface is disposed between the first planar end and the second circumferential surface. The first circumferential surface has a diameter smaller than a diameter of the second circumferential surface.

Description

SPRING END CAP WITH IMPROVED RETENTION
FIELD
[0001] The invention relates generally to a spring end cap, and more specifically to a spring end cap with improved retention
BACKGROUND
[0002] Springs with end caps are known. Examples are shown in United States Patent
No. 5,772,515 and 6,041,905.
BRIEF SUMMARY
[0003] Example aspects broadly comprise a spring end cap including a central axis, first and second parallel planar ends, and first and second circumferential surfaces. The planar ends are orthogonal to the central axis. An outer diameter of the first planar end is larger than an outer diameter of the second planar end. The first and second circumferential surfaces are disposed about the axis and between the planar ends. The first circumferential surface is disposed between the first planar end and the second circumferential surface. The first circumferential surface has a diameter smaller than a diameter of the second circumferential surface.
[0004] In an example embodiment, the diameter of the first circumferential surface is larger than the outer diameter of the second planar end. In an example embodiment, the diameter of the second circumferential surface is larger than the outer diameter of the second planar end. In an example embodiment, the spring end cap has a first conical surface disposed about the axis and extending between the second circumferential surface and the second planar end. In an example embodiment, the spring end cap has a second conical surface disposed about the axis and extending between the first and second circumferential surfaces.
[0005] In some example embodiments, the spring end cap has a third planar surface. The third planar surface is parallel to the first planar end, has an outer diameter equal to the outer diameter of the first planar end, and is disposed axially between the first planar end and the first circumferential surface. In an example embodiment, the spring end cap has a third circumferential surface extending between the first planar end and the third planar surface. In an example embodiment, the spring end cap has an undercut portion. The undercut portion has a third conical surface extending from the third planar surface towards the first planar end, a fourth planar surface parallel to the first planar end and extending from the third conical surface, and a partial toroidal surface connecting the fourth planar surface with the first circumferential surface. [0006] Other example embodiments broadly comprise a spring assembly including the spring end cap and a coil spring fixedly secured to the spring end cap. In some example embodiments, in an unassembled state, the coil spring includes a first end coil with a first inner diameter and a second coil with a second inner diameter, larger than the first inner diameter. In an example embodiment, the first inner diameter is less than the diameter of the first circumferential surface. In some example embodiments, the coil spring includes at least one dead coil and a plurality of active coils. All of the at least one dead coil is in contact with the spring end cap and all of the plurality of active coils are devoid of contact with the spring end cap. In an example embodiment, the coil spring includes at least one transition coil extending from the at least one dead coil to the plurality of active coils. In an example embodiment, the coil spring is arcuately shaped.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The nature and mode of operation of the present invention will now be more fully described in the following detailed description taken with the accompanying drawing figures, in which:
Figure 1 is a cross-section view of a spring end cap with improved retention according to an example aspect;
Figure 2 is detail cross-section view of the spring end cap of Figure 1 assembled with a spring showing interference;
Figure 3 is a cross-section view of the spring assembly of Figure 2.
DETAILED DESCRIPTION
[0008] At the outset, it should be appreciated that like drawing numbers appearing in different drawing views identify identical, or functionally similar, structural elements. Furthermore, it is understood that this invention is not limited only to the particular embodiments, methodology, materials and modifications described herein, and as such may, of course, vary. It is also understood that the terminology used herein is for the purpose of describing particular aspects only, and is not intended to limit the scope of the present invention, which is limited only by the appended claims.
[0009] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this invention belongs. Although any methods, devices or materials similar or equivalent to those described herein can be used in the practice or testing of the invention, the following example methods, devices, and materials are now described.
[0010] The following description is made with reference to Figure 1. Figure 1 is a cross- section view of spring end cap 100 with improved retention according to an example aspect. Spring end cap 100 includes a central axis 102 and parallel planar ends 104 and 106 orthogonal to the central axis. Outer diameter 108 of planar end 104 is larger than outer diameter 1 10 of planar end 106. Spring end cap 100 also includes circumferential surfaces 112 and 114 disposed about axis 102 and between planar ends 104 and 106. Circumferential surface 112 is disposed between planar end 104 and circumferential surface 114. Surface 112 has diameter 116 smaller than diameter 118 of circumferential surface 114. Diameter 116 of circumferential surface 112 is larger than diameter 1 10 of planar end 106. Diameter 118 of circumferential surface 114 is larger than outer diameter 110 of planar end 106.
[0011] End cap 100 also includes conical surface 120 disposed about axis 102 and extending between circumferential surface 1 14 and planar end 106. End cap 100 also includes conical surface 122 disposed about axis 102 and extending between circumferential surfaces 112 and 114. End cap 100 has planar surface 124. Surface 124 is parallel to planer end 104. Surface 124 has outer diameter 126 equal to outer diameter 108 of planar end 104. Surface 124 is disposed axially between the planar end 104 and circumferential surface 112. Spring end cap 100 includes circumferential surface 128 extending between planar end 104 and planar surface 124.
[0012] End cap 100 includes undercut portion 128. Portion 128 includes conical surface
130 extending from planar surface 124 towards planar end 104. Undercut portion 128 also includes planar surface 132 parallel to planar end 104 and extending from conical surface 130. Undercut portion also includes partial toroidal surface 134 connecting planar surface 132 with circumferential surface 112.
[0013] The following description is made with reference to Figures 1-2. Figure 2 is detail cross-section view of spring end cap 100 of Figure 1 assembled with spring 202 showing interference. Spring assembly 200 includes spring end cap 100 and coil spring 202 fixedly secured to spring end cap 100. In an unassembled state (or as shown with interference in Figure 2), coil spring 202 includes end coil 204 with inner diameter 206 and coil 208 with inner diameter 210. Inner diameter 210 is larger than inner diameter 206. Inner diameter 206 is less than diameter 1 16 of circumferential surface 112. Coil spring 202 includes dead coil 212 and active coils 214. By dead coil, we mean that adjacent spring coils rest upon one another such that there is no compression in that part of the spring. Dead coil 212 is in contact with spring end cap 100 (as indicated by interference region 216). Active coils 214 are devoid of contact with spring end cap 100. Spring 202 includes transition coil 218 extending from dead coil 212 to active coils 214.
[0014] The following description is made with reference to Figures 1-3. Figure 3 is a cross-section view of spring assembly 200 of Figure 2. Coil spring 202 is arcuately shaped. In other applications (not shown), spring 202 may be a straight spring.
[0015] The two steps of interference between the spring and end cap (i.e., at surfaces 112 and 114) improve retention of endcap 100 in spring 202. That is, the groove formed at surface 1 12 retains the endcap on the spring by retaining in two directions. For example, the spring is retained by the compression of coil 212 on surface 1 12 and the need to expand coil 212 over larger diameter surface 114 to remove the spring from the endcap. The groove works in conjunction with a press-fit of transition coil 218 at surfaces 1 14 and 120. Axial lengths of surfaces 1 12 and 114 are selected based on wire diameter and number of dead coils. Active coils 214 are designed with diameters large enough to avoid contact with the endcap for improved durability, but the transition coil(s) must avoid aggressive transitions between diameters due to stress concerns but allow larger active coils and maximized interference with the end cap.
[0016] Of course, changes and modifications to the above examples of the invention should be readily apparent to those having ordinary skill in the art, without departing from the spirit or scope of the invention as claimed. Although the invention is described by reference to specific preferred and/or example embodiments, it is clear that variations can be made without departing from the scope or spirit of the invention as claimed.

Claims

CLAIMS What We Claim Is:
1. A spring end cap comprising:
a central axis;
first and second parallel planar ends orthogonal to the central axis, an outer diameter of the first planar end being larger than an outer diameter of the second planar end; and,
first and second circumferential surfaces disposed about the axis and between the planar ends, the first circumferential surface disposed between the first planar end and the second circumferential surface and having a diameter smaller than a diameter of the second
circumferential surface.
2. The spring end cap of claim 1 wherein:
the diameter of the first circumferential surface is larger than the outer diameter of the second planar end; or,
the diameter of the second circumferential surface is larger than the outer diameter of the second planar end.
3. The spring end cap of claim 1 further comprising:
a first conical surface disposed about the axis and extending between the second circumferential surface and the second planar end; or,
a second conical surface disposed about the axis and extending between the first and second circumferential surfaces.
4. The spring end cap of claim 1 further comprising a third planar surface:
parallel to the first planar end;
having an outer diameter equal to the outer diameter of the first planar end; and, disposed axially between the first planar end and the first circumferential surface.
5. The spring end cap of claim 4 further comprising a third circumferential surface extending between the first planar end and the third planar surface.
6. The spring end cap of claim 4 further comprising an undercut portion including:
a third conical surface extending from the third planar surface towards the first planar end;
a fourth planar surface parallel to the first planar end and extending from the third conical surface; and,
a partial toroidal surface connecting the fourth planar surface with the first
circumferential surface.
7. A spring assembly comprising:
the spring end cap of claim 1 ; and,
a coil spring fixedly secured to the spring end cap.
8. The spring assembly of claim 7 wherein, in an unassembled state, the coil spring includes a first end coil with a first inner diameter and a second coil with a second inner diameter, larger than the first inner diameter.
9. The spring assembly of claim 7 wherein:
the coil spring includes at least one dead coil and a plurality of active coils;
all of the at least one dead coil is in contact with the spring end cap; and, all of the plurality of active coils are devoid of contact with the spring end cap.
10. The spring assembly of claim 7 wherein the coil spring is arcuately shaped.
PCT/US2017/041074 2016-07-11 2017-07-07 Spring end cap with improved retention Ceased WO2018013418A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2018551454A JP2019522756A (en) 2016-07-11 2017-07-07 Spring end cap with improved retention
DE112017003495.7T DE112017003495T5 (en) 2016-07-11 2017-07-07 Spring cover with improved safety
CN201780037858.7A CN109312801A (en) 2016-07-11 2017-07-07 Spring end cap with improved retention

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662360779P 2016-07-11 2016-07-11
US62/360,779 2016-07-11

Publications (1)

Publication Number Publication Date
WO2018013418A1 true WO2018013418A1 (en) 2018-01-18

Family

ID=60910570

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2017/041074 Ceased WO2018013418A1 (en) 2016-07-11 2017-07-07 Spring end cap with improved retention

Country Status (5)

Country Link
US (1) US20180010662A1 (en)
JP (1) JP2019522756A (en)
CN (1) CN109312801A (en)
DE (1) DE112017003495T5 (en)
WO (1) WO2018013418A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3779232A4 (en) * 2018-03-29 2022-01-05 NHK Spring Co., Ltd. COIL SPRING ASSEMBLY

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7301346B2 (en) * 2019-05-08 2023-07-03 株式会社佐原 Hook member and tension spring
CN112674536B (en) * 2019-10-17 2024-08-02 厦门新技术集成有限公司 Elastic module and elastic pad for furniture
CN111412238A (en) * 2020-04-26 2020-07-14 北京强度环境研究所 Back plate type metal shock absorber
KR102349748B1 (en) * 2020-08-12 2022-01-11 엘지전자 주식회사 Enclosed compressor
CN113187839A (en) * 2021-06-09 2021-07-30 广东湾区智能终端工业设计研究院有限公司 Spring structure and assembly method
CN115813148B (en) * 2022-02-15 2023-12-15 厦门新技术集成有限公司 Elastic module and elastic pad for furniture
JP2023160337A (en) * 2022-04-22 2023-11-02 日立Astemo株式会社 buffer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462608A (en) * 1983-09-01 1984-07-31 General Motors Corporation Steerable suspension bearing assembly
US20050008276A1 (en) * 2001-09-12 2005-01-13 Eric Beghini Bump stop device
US20060208406A2 (en) * 2004-10-20 2006-09-21 Basf Corporation Spring seat assembly
JP2007064345A (en) * 2005-08-31 2007-03-15 Suncall Corp Damper spring
WO2015194192A1 (en) * 2014-06-19 2015-12-23 日本発條株式会社 Coiled spring assembly

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896940A (en) * 1958-08-29 1959-07-28 Jose A Lightbourn Coil spring lowering and stabilizing devices
JPS551322Y2 (en) * 1976-01-31 1980-01-16
JPS59177839U (en) * 1983-05-17 1984-11-28 株式会社　東京発条製作所 Coil spring end fixing structure
EP0135807B1 (en) * 1983-09-13 1987-12-02 Gebr. Ahle GmbH & Co. Arrangement for connecting a helical spring to a motor vehicle wheel suspension arm
DE3436193C2 (en) * 1984-10-03 1987-04-09 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt eV, 5300 Bonn Valve spring retainer and method for its manufacture
JP2816958B2 (en) 1995-10-27 1998-10-27 株式会社エフ・シー・シー Torque damper
JPH1182582A (en) 1997-09-08 1999-03-26 Exedy Corp Coil spring assembly for lockup damper
US6293240B1 (en) * 2000-03-28 2001-09-25 Fuji Oozx Inc. Valve spring retainer and a valve operating mechanism
US6311661B1 (en) * 2000-03-28 2001-11-06 Fuji Oozx Inc. Valve spring retainer and a valve operating mechanism
SG157949A1 (en) * 2004-07-28 2010-01-29 Panasonic Refrigeration Device System for reducing compressor noise and suspension spring and snubber arrangement therefor
JP2006125289A (en) * 2004-10-28 2006-05-18 Fuji Oozx Inc Valve spring retainer for internal combustion engine
JP4699273B2 (en) * 2006-04-27 2011-06-08 株式会社東郷製作所 Spring seat member and spring assembly
JP5311918B2 (en) * 2008-08-04 2013-10-09 日本発條株式会社 Spring retainer and spring system
US8317169B1 (en) * 2009-09-21 2012-11-27 Christopher Ralph Cantolino Vibration isolator
US10274036B2 (en) * 2015-11-24 2019-04-30 Basf Se Energy management jounce bumper assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462608A (en) * 1983-09-01 1984-07-31 General Motors Corporation Steerable suspension bearing assembly
US20050008276A1 (en) * 2001-09-12 2005-01-13 Eric Beghini Bump stop device
US20060208406A2 (en) * 2004-10-20 2006-09-21 Basf Corporation Spring seat assembly
JP2007064345A (en) * 2005-08-31 2007-03-15 Suncall Corp Damper spring
WO2015194192A1 (en) * 2014-06-19 2015-12-23 日本発條株式会社 Coiled spring assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3779232A4 (en) * 2018-03-29 2022-01-05 NHK Spring Co., Ltd. COIL SPRING ASSEMBLY
US11339844B2 (en) 2018-03-29 2022-05-24 Nhk Spring Co., Ltd. Coil spring assembly

Also Published As

Publication number Publication date
CN109312801A (en) 2019-02-05
US20180010662A1 (en) 2018-01-11
DE112017003495T5 (en) 2019-05-02
JP2019522756A (en) 2019-08-15

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