GB2157394A - Spring system, tilting bearing - Google Patents
Spring system, tilting bearing Download PDFInfo
- Publication number
- GB2157394A GB2157394A GB08409543A GB8409543A GB2157394A GB 2157394 A GB2157394 A GB 2157394A GB 08409543 A GB08409543 A GB 08409543A GB 8409543 A GB8409543 A GB 8409543A GB 2157394 A GB2157394 A GB 2157394A
- Authority
- GB
- United Kingdom
- Prior art keywords
- supporting member
- mass
- spherical surface
- spring system
- housing
- 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.)
- Granted
Links
- 230000035939 shock Effects 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 230000000295 complement effect Effects 0.000 claims abstract description 6
- 239000013013 elastic material Substances 0.000 claims description 10
- 239000012858 resilient material Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000013536 elastomeric material Substances 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 230000010358 mechanical oscillation Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- -1 polytetrafluorethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
-
- 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
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/14—Plastic spring, e.g. rubber
- B60G2202/143—Plastic spring, e.g. rubber subjected to compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/125—Mounting of rubber type springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/45—Stops limiting travel
- B60G2204/4504—Stops limiting travel using cable or band to prevent extension
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
A spring system for resiliently supporting a mass 15 with respect to a base 1 comprises a supporting member 6 coupled to the mass 15, which supporting member is bounded by at least a portion of a spherical surface 5, which substantially bears against a concentric complementary guiding spherical surface portion 4 which is rigidly fixed with respect to the base 1 for guiding said supporting member 6 so that it is allowed to rotate in all directions around the center point of the sphere, means 17, 18, 19 being provided for keeping the spherical surface portion of the supporting member 6 always in engaging relationship with the guiding spherical surface portion 4, resilient means 17 in engagement with the supporting member 6 and supported with respect to the base 1, and means 7, 9 for coupling the supporting member 6 to the mass 15 at a point inside the resilient means 17 so that on radial shock loads or the radial component of shock loads acting on the mass 15, said supporting member 6 is tilted while its spherical surface 5 is guided along the guiding spherical surface 4 and by the deformations of the resilient means as a result thereof, a resilient couple and/or a radial resilient force is developed which tends to move said supporting member 6 back into the initial position. The spherical surfaces 4 and 5 may be separated by an elastomeric layer (28, Fig. 2). <IMAGE>
Description
SPECIFICATION
Spring system
The invention relates to a spring system for resiliently supporting a mass with respect to a base which mass is subjected to loads in particular shock loads.
The object of the invention is to provide such spring system which is capable to take up relative large displacements in all radial directions with respect to a base which displacements are due to a shock, and to limit the acceleration forces acting on the resiliently supported mass to calculatable and acceptable values and to return to the initial position with a predetermined accuracy.
This object is achieved in that the spring system according to the invention comprises a supporting member mounted for a movement and adapted for being coupled to the mass, which supporting member is bounded by at least a portion of a spherical surface, which spherical surface substantially bears against a concentric complementary guiding spherical surface portion which is rigidly fixed with respect to the base for guiding said supporting member so that it is allowed to rotate in all directions around the center point of the sphere, means being provided for keeping the spherical surface portion of the supporting member always in engaging relationship with the guiding spherical surface portion, and circular resilient means are arranged which are in engagement with the supporting member and which on the other hand are supported with respect to the base, and means are provided for coupling the supporting member to the mass at a point inside the circular resilient means so that by the radial shock loads or by the radial component of shock loads acting on the mass, said supporting member is tilted while its spherical surface is guided along the guiding spherical surface and by the deformations of the resilient means as a result thereof, a resilient couple and/or a radial resilient force is developed which tends to move said supporting member into the initial position.
Preferably means for coupling said supporting member with the mass are formed by a spring member of which the axis coincides with a radius of the sphere and which is received between two spaced apart supports arranged for a movement towards each other in compressing said spring member and which each are restrained from moving away from each other by means of an abutment member, which abutment members are in fixed connection with said supporting member whereas said supports are connected with the mass. In a spring system formed this way also axial shocks or shock-components in both directions can be absorbed by said spring member.
Advantageously the abutment members are formed on a sleeve-shaped housing which is fixed to said supporting member and the one support is formed by a disc-shaped member arranged for a sliding movement inside the housing and fixed to the one terminal end of a rod which extends through the sleeve-shaped housing, which rod is connected at its other end to the mass so that in a displacement of said mass with respect to the base in the one axial direction the mass engages the rod, whereas the other support is formed by a second disc-shaped member arranged for sliding movement with respect to the sleeveshaped housing and through which the rod is slidably passed, said second disc-shaped member being in connection with the mass so that when said mass is displaced with respect to the base in the other axial direction, said mass engages said second disc-shaped member.
Preferably said means for keeping the spherical surface portion of the supporting member in engagement with the guiding spherical surface portion are formed by the circular resilient means which are prestressed.
Said prestressing must be always at least equal to the maximum shock load in axial direction.
In an advantageous embodiment the supporting member has substantially the shape of a segment of a sphere whereas the guiding spherical surface portion is formed substantially at the inside of an annular member disposed around the supporting member, which annular member is securely fixed on a housing connected with the base.
Between the flat portion of the supporting member formed as a segment of a sphere and the resilient means a substantially disc-shaped member may be provided of which at least the outer circumference abuts against a head face of said annular member. Said discshaped member forms so to speak an intermediate construction which is also tilted when shock loads occur. However this tilting movement of the disc-shaped member occurs about a tilting point disposed on the head face of the annular member whereby, after a shock load, said disc-shaped member is returned with certainty to the initial position by a resilient moment acting on said member, so that also is assured that the supporting member returns accurately into its initial position.
Between the flat portion of the supporting member shaped as a segment of a sphere and the disc-shaped member a layer of an elastic material may be provided whereby any mechanical vibrations and contact sounds are damped.
In order to prevent the layer of elastic material from being deformed too much when the supporting member is tilted with respect to the disc-shaped member and/or when a too large axial force occurs, the outer circum ference of the flat portion of the supporting member formed as a segment of a sphere projects beyond the outer circumference of the layer of elastic material and is provided with an abutment edge which is permitted to abut against the disc-shaped member.
Between the spherical surface of the supporting member and the guiding spherical surface, a layer of an elastic material may be provided which is secured to both said spherical surfaces. In this way tilting of the supporting member is attended with a shearing deformation of the layer of elastic material whereby any mechanical oscillations and contact sounds are damped and the spring system operates silently.
The resilient means may be formed by a tubular cylindrical body of a resilient material, said body preferably being formed by a plurality of superimposed annular bodies of a resilient material, rings of a rigid material being interposed between said bodies so that with each body such a ring of a rigid material is connected at both its head ends.
Preferably the sleeve-shaped housing extends through the supporting member to the inside of the circular resilient means, whereas the rod extending through said sleeve-shaped housing is preferably provided with a universal joint for coupling the mass.
The invention is described in more detail by referring to the drawing wherein:
Figure 1 shows in axial cross section a spring system according to the invention,
Figure 2 shows in axial cross section another embodiment of the radial portion of a spring system according to the invention, and
Figure 3 shows in axial cross section a third embodiment of the radial portion of a spring system according to the invention.
As shown in Fig. 1 the spring system comprises a cylindrical housing 2 mounted on a base 1. An annular member 3 is provided at the top side of said housing, which annular member 3 is bounded at its inner side by a portion of a spherical surface 4. Said portion of a spherical surface 4 serves as a guiding means for the complementary portion of a spherical surface 5 of a supporting member 6 shaped in the form of a truncated segment of a sphere. The supporting member 6 has a central orifice in which a sleeve-shaped housing 7 is securely fixed.
The housing 7 has a bottom 8 forming the support for a spring, which bottom is slidable up and down inside the housing 7 and abuts in its lower position against an abutment edge 7' formed to housing 7. The housing 7 has an open upper side in which a second sleeveshaped housing 9 is received for an up and down sliding movement, the upward movement being limited by the inner abutment edge 7" formed to the housing 7 and a shoulder 9' formed on the housing 9 which cooperates with the abutment edge 7".The housing 9 is provided with a head wall 10 forming a second spring support and in which a central orifice is formed for passing the rod 11 which at its one end is fixed to the bottom 8 and at its other end carries a ball 1 2 arranged for a sliding movement along rod 11 and which is retained in its shown position by the collar 1 3 formed on the rod 11 and sleeve 14 supported by head wall 10 and arranged for a sliding movement along rod 5. The ball 1 2 forms a universal joint for the coupling with a resiliently supported mass 1 5 which is not shown in more detail.
Between the bottom 8 of housing 7 and head wall 10 of housing 9 a spring 1 6 is mounted which is capable to take up the axial shock load components in two directions.
For taking up the radial shock load components, a packet of one or more superimposed annular bodies 1 7 of a resilient material e.g.
rubber or another elastomeric material which may be reinforced by fibers is provided, which body is clamped in prestressing it between the base 1 and a loose ring 1 8. The ring 1 8 bears at its other side against the lower head faces of the ring-shaped member 3 and the supporting member 6 which faces extend in one and the same plane. On both sides of each annular body 1 7 of a resilient material a ring 1 9 of a rigid material is attached for instance by vulcanisation, so that the bodies 1 7 abut against each other and against the base 1 and ring 1 8 respectively through said rings 1 9.
When, for instance as a result of a shock load, a force acts on mass 1 5, the axial component of said force will be taken up by spring 16, whereby in the one axial direction the sleeve-shaped housing 9 and in the other axial direction the bottom 8 will slide to the inside into the sleeve-shaped housing 7 in compressing spring 16. By the radial component of such force the entire assembly of housings 7, 9 and supporting member will swing about the center point of the concentric spheres of which the spherical surface portions 4 and 5 respectively forms a part, the spherical surface portion 5 of supporting member 6 sliding along the spherical surface portion 4 of the annular member 3. The ring 1 8 will then be tilted around a tilting point disposed on the lower head face of the annular member 3 so that the annular resilient bodies 1 7 are more compressed at the one side and are kept substantially in the same state at the other side so that a resilient couple is generated tending to the return ring 1 8 and supporting member 6 into their initial positions. When the force has fallen off the spring 1 6 returns into its initial position whereas by said resilient couple, ring 1 8 is returned to its initial position until it abuts against the lower head face of annular member 3 whereby also the supporting member 6 is returned with certainty in its initial position and thereby the entire spring assembly.
It will be understood that the pre-stress in the resilient bodies 1 7 must be at least equal to the maximum axial component of the shock load since otherwise the spherical surface 5 will be permitted to get disengaged from the spherical surface 4.
The ring 1 8 is not essential as shown in
Fig. 2.
In Fig. 2 only the lower portion of the spring assembly is shown which serves for taking up radial force-components. For the sake of simplicity the assembly for taking up the axial force-components is only indicated by the sleeve-shaped housing 20 in Fig. 2 which housing corresponds to the sleeveshaped housing 7 as shown in Fig. 1. Around said housing 20 a supporting member 22 is securely fixed which supporting member is shaped as a segment of a sphere which is bounded by the spherical surface portion 23.
The annular spring means 24 which may be formed in the same way as shown in Fig. 1 by annular bodies 1 7 having rings of rigid material 19, are in direct engagement with the supporting member 22, said spring means 24 being also pre-stressed between the supporting member 22 and the housing 25.
On the housing 25 annular member 26 is mounted which is bounded at its inner side by a spherical surface portion 27 which is complementary with spherical surface 23.
As shown in Fig. 2 between the spherical surface portion 23 and 27 a layer 28 of an elastic material for instance rubber or another elastomeric material is provided, which layer is fixed by vulcanisation or in a different way to spherical surface portion 23 and 27 so that a tilting movement of supporting member 22 with respect to annular member 26, in taking the radial force components, is accompagnied by a shearing deformation in layer 28 whereby mechanical oscillations and contact noise will be absorbed and the spring system operates more siliently.
In this embodiment the spring means 24 are compressed at the one side and expanded at the other side in a tilting movement of the supporting member 22.
However it is not essential that the layer 28 is provided since it also possible to make the supporting member 22 and annular member 26 self-lubricating or to provide a lubricating film for instance of polytetrafluorethylene between the spherical surfaces 23 and 27.
Also in the embodiment shown in Fig. 3 only the lower portion of the spring assembly is shown which portions serve for taking up radial force components whereas the assembly for taking up the axial force components is also only shown by sleeve-like housing 29.
Around said housing 29 a supporting member 30 is fixed which is bounded by the spherical surface 31. In the same way as shown in Fig.
2 a housing 32 is provided on which the annular member 33 is mounted which is bounded at its inner side by a spherical surface portion 34 which is complementary with the spherical surface portion 31, between said spherical surface portions 31 and 34 a layer 35 of an elastic material for instance rubber or another elastomeric material being provided, which layer is fixed by vulcanisation or in a different way to spherical surface portions 31 and 34 in the same way as shown in Fig.
2. However in this case a flat portion 36 is formed on the inner side of annular member 33, which portion is formed for cooperation with the flattened top side 37 of supporting member 30 through a portion of layer 35 of elastic material to prevent the layer 35 from being deformed too much as a result of the tilting movement of supporting member 30 and/or of a too large axial force.
The annular spring means 38 which may be formed in the same way as shown in Fig. 1, are pre-stressed between the housing 32 and annular member 39 which annular member corresponds substantially to the annular member 1 8 in Fig. 1. However in this case the annular member 38 does not abut directly against supporting member 30 but through a ring 40 of a resilient material. The outer circumferential portion of ring 39 is bent upwardly so that the outer edge of said ring abuts against an abutment face 41 of annular member 33. An auxiliary ring 42 is fixed to the bottom side of supporting member 30, which auxiliary ring is provided at its outer circumference with an enlarged edge 43 which forms an abutment for supporting member 30, which abutment is permitted to abut against the ring 39 so that the ring 40 of a resilient material is prevented from being overloaded in a tilting and/or axial movement of the supporting member 30 with respect to ring 10.
Claims (11)
1. A spring system for resiliently supporting a mass with respect to a base which mass is subjected to loads in particular shock loads, characterized in that the spring system comprises a supporting member mounted for a movement and adapted for being coupled to the mass, which supporting member is bounded by at least a portion of a spherical surface, which spherical surface substantially bears against a concentric complementary guiding spherical surface portion which is rigidly fixed with respect to the base for guiding said supporting member so that it is allowed to rotate in all directions around the center point of the sphere, means being provided for keeping the spherical surface portion of the supporting member always in engaging relationship with the guiding spherical surface portion, and circular resilient means are arranged which are in engagement with the supporting member and which on the other hand are supported with respect to the base, and means are provided for coupling the supporting member to the mass at a point inside the circular resilient means so that by the radial shock loads or by the radial component of shock loads acting on the mass, said supporting member is tilted while its spherical surface is guided along the guiding spherical surface and by the deformations of the resilient means as a result thereof, a resilient couple and/or a radial resilient force is developed which tends to move said supporting member into the initial position.
2. Spring system according to claim 1, characterized in that said means for coupling said supporting member with the mass are formed by a spring member of which the axis coincides with a radius of the sphere and which is received between two spaced apart supports arranged for a movement towards each other in compressing said spring member and which each are restrained from moving away from each other by means of an abutment member, which abutment members are in fixed connection with said supporting member whereas said supports are connected with the mass.
3. Spring system according to claim 2, characterized in that said abutment members are formed on a sleeve-shaped housing which is fixed to said supporting member and the one support is formed by a disc-shaped member arranged for a sliding movement inside the housing and fixed to the one terminal end of a rod which extends through the sleeveshaped housing, which rod is connected at its other end to the mass so that in a displacement of said mass with respect to the base in the one axial direction the mass engages the rod, whereas the other support is formed by a second disc-shaped member arranged for sliding movement with respect to the sleeveshaped housing and through which the rod is slidably passed, said second disc-shaped member being in connection with the mass so that when said mass is displaced with respect to the base in the other axial direction, said mass engages said second disc-shaped member.
4. Spring system according to claims 1-3, characterized in that said means for keeping the spherical surface portion of the supporting member in engagement with the guiding spherical surface portion are formed by the circular resilient means which are prestressed.
5. Spring system according to claims 1-4, characterized in that supporting member has substantially the shape of a segment of a sphere whereas the guiding spherical surface portion is formed substantially at the inside of an annular member disposed around the supporting member, which annular member is securely fixed on a housing connected with the base.
6. Spring system according to claim 5, characterized in that between the flat portion of the supporting member formed as a segment of a sphere and the resilient means a substantially disc-shaped member is provided of which at least the outer circumference abuts against a head face of said annular member.
7. Spring system according to claim 6, characterized in that between the flat portion of the supporting member shaped as a segment of a sphere and the disc-shaped member a layer of an elastic material is provided.
8. Spring system according to claim 7, characterized in that the outer circumference of the fiat portion of the supporting member formed as a segment of a sphere projects beyond the outer circumference of the layer of elastic material and is provided with an abutment edge which is permitted to abut against the disc-shaped member.
9. Spring system according to claims 1-8, characterized in that said resilient means is formed by a tubular cylindrical body of a resilient material.
10. Spring system according to claim 9, characterized in that said body is formed by a plurality of superimposed annular bodies of a resilient material, rings of a rigid material being interposed between said bodies so that with each body such a ring of a rigid material is connected at both its head ends.
11. Spring system according to claims 3-10, characterized in that said sleeve-shaped housing extends through the supporting member to the inside of the circular resilient means.
1 2. Spring system according to claims 3-11, characterized in that said rod extending through said sleeve-shaped housing is provided with a universal joint for coupling the mass.
1 3. A spring system substantially as hereinbefore described with reference to, and as shown in, Fig. 1 or Fig. 2 or Fig. 3 of the accompanying drawings.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8203630A NL191635C (en) | 1982-09-20 | 1982-09-20 | Spring system. |
| GB08409543A GB2157394B (en) | 1984-04-12 | 1984-04-12 | Spring system |
| US07/085,223 US4738436A (en) | 1982-09-20 | 1987-08-13 | Spring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08409543A GB2157394B (en) | 1984-04-12 | 1984-04-12 | Spring system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8409543D0 GB8409543D0 (en) | 1984-05-23 |
| GB2157394A true GB2157394A (en) | 1985-10-23 |
| GB2157394B GB2157394B (en) | 1988-07-06 |
Family
ID=10559583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08409543A Expired GB2157394B (en) | 1982-09-20 | 1984-04-12 | Spring system |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2157394B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0288126A1 (en) * | 1987-04-24 | 1988-10-26 | Koninklijke Philips Electronics N.V. | Device for supporting a sub-frame of a disc record player on frame, and disc record player comprising such a device |
| EP0562899A1 (en) * | 1992-03-24 | 1993-09-29 | EUROCOPTER FRANCE, Société Anonyme dite: | Sight device for a rotorcraft |
| US20140001684A1 (en) * | 2012-06-29 | 2014-01-02 | Showa Corporation | Seat damper |
| CN108612963A (en) * | 2016-12-13 | 2018-10-02 | 青岛海尔洗衣机有限公司 | A kind of household electrical appliance footing and household electrical appliance |
| WO2020224671A3 (en) * | 2020-07-25 | 2021-04-29 | 苏州喜全软件科技有限公司 | Anti-shock device for mechanical apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266492B (en) * | 2018-01-25 | 2019-08-02 | 山东东山矿业有限责任公司株柏煤矿 | A kind of winning equipment damping load carrier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB863743A (en) * | 1957-09-24 | 1961-03-29 | Zd Y V I Plzen | A support member for machine parts |
| GB932439A (en) * | 1960-05-02 | 1963-07-24 | Luxembourg Brev Participations | Improvements in devices for forming a resilient connection between two parts of structures |
| GB1470554A (en) * | 1973-07-18 | 1977-04-14 | Lord Corp | Rotor blade retention system |
| EP0015118A1 (en) * | 1979-02-16 | 1980-09-03 | A/S Kongsberg Väpenfabrikk | Shock absorber arrangement for mounting delicate equipment |
-
1984
- 1984-04-12 GB GB08409543A patent/GB2157394B/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB863743A (en) * | 1957-09-24 | 1961-03-29 | Zd Y V I Plzen | A support member for machine parts |
| GB932439A (en) * | 1960-05-02 | 1963-07-24 | Luxembourg Brev Participations | Improvements in devices for forming a resilient connection between two parts of structures |
| GB1470554A (en) * | 1973-07-18 | 1977-04-14 | Lord Corp | Rotor blade retention system |
| EP0015118A1 (en) * | 1979-02-16 | 1980-09-03 | A/S Kongsberg Väpenfabrikk | Shock absorber arrangement for mounting delicate equipment |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0288126A1 (en) * | 1987-04-24 | 1988-10-26 | Koninklijke Philips Electronics N.V. | Device for supporting a sub-frame of a disc record player on frame, and disc record player comprising such a device |
| EP0562899A1 (en) * | 1992-03-24 | 1993-09-29 | EUROCOPTER FRANCE, Société Anonyme dite: | Sight device for a rotorcraft |
| FR2689089A1 (en) * | 1992-03-24 | 1993-10-01 | Eurocopter France | Aiming device for rotary wing aircraft. |
| US5461796A (en) * | 1992-03-24 | 1995-10-31 | Societe Anonyme Dite: Eurocopter France | Gunsight device for rotating-wing aircraft |
| US20140001684A1 (en) * | 2012-06-29 | 2014-01-02 | Showa Corporation | Seat damper |
| US8985563B2 (en) * | 2012-06-29 | 2015-03-24 | Showa Corporation | Seat damper |
| CN108612963A (en) * | 2016-12-13 | 2018-10-02 | 青岛海尔洗衣机有限公司 | A kind of household electrical appliance footing and household electrical appliance |
| WO2020224671A3 (en) * | 2020-07-25 | 2021-04-29 | 苏州喜全软件科技有限公司 | Anti-shock device for mechanical apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2157394B (en) | 1988-07-06 |
| GB8409543D0 (en) | 1984-05-23 |
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| Date | Code | Title | Description |
|---|---|---|---|
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20030412 |