JP2009162365A - Compression-type shock absorber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compression-type shock absorber having durability and capable of improving compression force absorbing performance by efficiently using elastic force of an elastic body. <P>SOLUTION: The shock absorber is composed of flat-plate elastic rubber 10 having desired elasticity and allowing input of compression force F, a penetration hole 12 formed inside the flat-plate elastic rubber 10, a belt-like plate 20 arranged inside the penetration hole 12, and vulcanizing adhesive for integrating the belt-like plate 20 to the flat-plate elastic rubber 10. The belt-like plate 20 is arranged in the compression direction of the compression force F, which means, a direction crossing to a direction of thickness D. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a shock absorber capable of absorbing a compressive force using an elastic material such as rubber.

2. Description of the Related Art Conventionally, a shock absorber has been proposed in which an elastic body such as rubber and another member are combined to improve the compression force absorbing performance such as impact.
For example, the cushioning material proposed in Patent Document 1 is a compression material that embeds a steel pipe in a rubber material and integrally forms it to form a cushioning material having an intermediate elastic modulus between the rubber material and the steel pipe, and absorbs the compressive force. Improves power absorption performance.

  However, the buffer material proposed in Patent Document 1 uses elastic deformation of the steel pipe, and the steel pipe is repeatedly deformed by repeatedly inputting the compressive force, which may cause fatigue failure, and is durable. Reliability related to sex was low.

JP 2001-263398 A

  An object of the present invention is to provide a compression-type buffer body that is durable and that efficiently uses the elastic force of an elastic body to improve the compression force absorption performance.

  According to the present invention, an elastic body having desired elasticity and allowing an input of a compressive force, a cavity formed inside the elastic body, a thin plate material arranged inside the elastic body, and the thin plate material It is characterized by comprising a compression type shock absorber comprising a thin plate material arranged in a direction crossing the compression direction of the compression force.

The elastic body includes an elastic body made of natural rubber, synthetic rubber or the like.
The thin plate material is formed of a thin plate shape such as metal or resin and includes a plate material having appropriate strength.
The integration means includes integration means for integrally forming a thin plate material at the time of forming the elastic body, or integration means for inserting and integrating the thin plate material into the formed elastic body.

  Thereby, the input compression force can be absorbed by the elastic body. Specifically, the elastic body to which the compression force is input is elastically deformed, and the elastic force can be absorbed by the elastic deformation. In addition, since the cavity is formed inside the elastic body, the elastic body can be deformed toward the cavity, that is, in the direction of crushing the cavity. Due to this deformation, the thin plate material arranged inside the elastic body is rotated about the axis in the direction orthogonal to the compression direction. By the rotational movement of the thin plate material integrated with the elastic body by the integration means, a shearing force is generated at the interface between the thin plate material and the elastic body, and a tensile force is applied to the elastic body by the shearing force. . By this tensile force, the input compressive force can be absorbed more efficiently.

  Thus, by forming the cavity inside, it is greatly deformed inward by the input compressive force, and the thin plate material arranged inside is rotated by this deformation, and the elastic movement of the boundary portion of the thin plate material is caused by this rotational movement. It is possible to obtain a compression-type buffer body that imparts a tensile force to the body, maximizes the elastic performance of the elastic body itself, and improves the compression force absorption performance.

  In addition, since the thin plate material arranged inside the elastic body is not deformed by the applied compressive force, there is no fear of fatigue failure due to repeated loads, and a durable compression buffer can be configured.

  As an aspect of the present invention, the elastic body is formed of a flat plate elastic body that allows the input of the compressive force in the thickness direction, and the compressive force transmission thin that transmits the input compressive force to the flat plate elastic body. A plate material can be provided on both end faces of the flat plate elastic body in the thickness direction.

  Thereby, compressive force can be input into the said flat elastic body substantially equally via the compressive force transmission thin plate material. Moreover, since the compression force transmission thin plate material is provided on both end surfaces in the thickness direction, the possibility that the flat plate elastic body is damaged from the outside can be reduced.

  In addition, by configuring the elastic body with a flat plate-shaped elastic body that allows the input of the compressive force in the thickness direction, for example, the elastic body is prevented from being deformed in the out-of-plane direction by a compressive force. It can be reliably deformed in the inner direction.

  Accordingly, the thin plate material disposed therein can be reliably rotated by the compression force uniformly input by the compression force transmitting thin plate material, and the compression force absorption performance can be reliably improved by this rotational movement.

  Further, as an aspect of the present invention, the cavity is constituted by a through-hole penetrating in the length direction of the flat plate elastic body, and the thin plate material is disposed along the length direction of the flat plate elastic body, It can arrange | position in the direction which cross | intersects with respect to the thickness direction of the said flat elastic body, and the width direction.

  Thereby, for example, compared with the case where the air is sealed, the cavity is constituted by a through hole penetrating in the length direction of the flat plate elastic body, so that the deformation in the thickness direction, that is, the through hole is formed. The space to be formed can be easily deformed in the direction of crushing.

  Further, since the thin plate member is disposed in the length direction of the flat plate elastic body, that is, substantially parallel to the through hole, and in the thickness direction of the flat plate elastic body and in the direction intersecting the width direction, the thickness direction The thin plate material can be rotated and moved more efficiently by the above deformation, that is, the deformation in the direction of crushing the space forming the through hole.

  Further, as an aspect of the present invention, the thin plate member can be provided with a rotation center axis in the length direction which is a rotation center of rotation in a width direction cross section configured in the thickness direction and the width direction.

  Thereby, the rotational movement of the thin plate material by the deformation of the elastic body can be ensured. Specifically, for example, even when a force in the width direction is applied to the thin plate material by deformation in the direction of crushing the space forming the cavity due to compressive force, the force in the width direction is rotated around the rotation center axis. The thin plate material can be rotated by being converted into force. Therefore, the compressive force absorption performance by the rotational movement of the thin plate material can be reliably improved.

As an aspect of the present invention, the thin plate material can be provided with an integrated reinforcing means for reinforcing the integration of the thin plate material and the elastic body by the integrating means.
The integrated reinforcing means includes a thin plate material through-hole penetrating in the thickness direction of the thin plate material, and an unevenness formed on the surface of the thin plate material and a friction force increasing means by surface treatment.

  As a result, the integration of the thin plate material and the elastic body can be made firmer, so that the tensile force in the shear direction accompanying the rotational movement of the thin plate material by the input compressive force is reliably applied to the elastic body near the boundary. The compression force absorbing performance of the compression buffer can be further improved.

  Further, as an aspect of the present invention, the elastic body is made of a rubber material, and the integration means is made of vulcanization adhesion for bonding the rubber material and the thin plate material when the rubber material is vulcanized. can do.

The rubber material includes a synthetic rubber material such as a damping rubber, a natural rubber material, or the like.
The above-mentioned vulcanization adhesion is an adhesion means for bonding a thin plate material and a rubber material at the same time as vulcanization using heat and pressure at the time of vulcanization molding of a rubber material, and direct vulcanization adhesion and adhesion without applying an adhesive. Including indirect vulcanization adhesion in which an agent is applied.

  As a result, the rubber material and the thin plate material can be more reliably integrated, and since the integration with the thin plate material has already been completed when the formation of the rubber material is completed, after the rubber material is formed, Compared with the case where a thin plate material is inserted and integrated, the step of forming the compression buffer can be reduced.

  According to the present invention, it is possible to configure a compression-type buffer body that is durable and that efficiently uses the elastic force of the elastic body to improve the compression force absorption performance.

Hereinafter, an embodiment of the present invention will be described.
The compression shock absorber 1 will be described together with FIG. 1 showing a perspective view of the compression shock absorber 1 and FIG. 2 showing an explanatory view of a sectional view of the compression shock absorber 1 in the plane direction.

  The compression shock absorber 1 includes a flat plate-like flat elastic rubber 10, a steel plate 11 that is disposed on the front and back of the flat elastic rubber 10 and sandwiches the flat elastic rubber 10 in a sandwich shape, and a flat elastic rubber 10. It is comprised with the arrange | positioned strip | belt-shaped strip | belt-shaped plate 20. FIG.

  The flat elastic rubber 10 is formed in a vertically long and wide rectangular parallelepiped shape, and penetrates the flat elastic rubber 10 in the vertical direction at a position that divides the width W (the length in the left-right direction in FIG. 2) into approximately three equal parts. A cylindrical through hole 12 having a diameter of about 1/3 of the thickness D of the rubber 10 (the length in the vertical direction in FIG. 2) is provided, and a half circle of the through hole 12 is formed on the side surface 10a of the flat elastic rubber 10. A semi-cylindrical recess 13 formed in a cross section is provided.

The flat elastic rubber 10 is composed of a high damping rubber. High damping rubber is a rubber material that is compounded and designed to have both friction damping between rubber molecules and viscous damping due to viscous materials existing between the molecules.
The steel plate 11 is a thin metal plate that covers the entire front and back surfaces of the flat elastic rubber 10, and is bonded and fixed to the front and back surfaces of the flat elastic rubber 10.

  The belt-like plate 20 is made of a metal belt-like thin plate material, and has a length L (in the vertical direction in FIG. 1) between the semi-cylindrical recess 13 and the through-holes 12 and between the through-holes 12. (Length), that is, parallel to the through hole 12.

  In addition, the arrangement | positioning direction of the strip | belt-shaped plate 20 is a direction which cross | intersects the thickness D direction, as shown to Fig.2 (a) which is sectional drawing of the compression type buffer body 1 of the state before the compression force F is provided. In other words, the adjacent belt-like plates 20 and 20 are arranged so as to have a square shape in plan view.

  The belt-like plate 20 is coated with a vulcanized adhesive and indirectly vulcanized and bonded to the flat elastic rubber 10 using heat and pressure during the vulcanization molding of the flat elastic rubber 10. You may adhere by direct vulcanization adhesion which is not used.

  When the compression-type shock absorber 1 configured in this way is compressed with a compressive force F in the thickness D direction, the compressive force F is transmitted to the flat elastic rubber 10 via the steel plate 11, and the flat elastic rubber 10 is compressed in the compressive direction (thickness). (Inward direction of D).

  The deformation in the compression direction will be described in detail. By the input compression force F, the upper side of the C-shape formed by the belt-like plates 20 and 20 adjacent to each other through the through-hole 12 (the left-hand and middle belt-like plates 20 in FIG. 2). In the case of the left cross-section constituting the upper part of FIG. 2, and in the case of the right cross-section constituted by the central and right belt-like plates 20, the rice bowl has a convex shape. Further, the flat elastic rubber 10 is deformed so that the semi-cylindrical recess 13 has the same shape as the half cross section of the through hole 12.

  In addition, in more detail about the deformation | transformation which becomes a rice ball shape, as shown in FIG.2 (b), as shown in FIG.2 (b), one direction is deform | transformed inside (arrow di) among three equal intervals of the through-hole 12 of a planar view circular cross section, The remaining two directions are deformed outward (arrow do).

  Thereby, as shown in FIG. 2B, which is a cross-sectional view of the compression-type shock absorber 1 in a state where the compression force F is applied and deformed, the flat elastic rubber 10 has a reduced thickness D, and the belt-like plate 20 has an arrow. It rotates as shown by r, and is deformed so that the skirt of the C-shaped plan view formed by the adjacent belt-like plates 20 and 20 spreads.

  At this time, the deformation of the through-hole 12 and the semi-cylindrical recess 13 having a convex shape on the upper side of the C-shape and the rotational movement of the band-shaped plate 20 by the arrow r causes the band-shaped plate 20 and the flat elastic rubber 10 to move. A shearing force S indicated by an arrow S is generated at the boundary portion (see FIG. 2B).

  The shear force S is a force applied to both sides of the belt-like plate 20 in parallel to the width direction of the belt-like plate 20 and in the opposite directions. A tensile force is imparted to the flat elastic rubber 10 by the shear force S. Will be.

  Therefore, the compression force F input to the compression type shock absorber 1 is formed of damping rubber, and the energy of the compression force F is absorbed by the damping effect of the elastic elastic plate 10 that is elastically deformed. 10 is further absorbed by the tensile force based on the shearing force S generated by the rotational movement of the belt-like plate 20 accompanying the 10 elastic deformation.

  As described above, the compression-type shock absorber 1 is input by disposing the belt-like plate 20 inside the flat elastic rubber 10 and forming the through hole 12 and the semi-cylindrical recess 13 so as to be adjacent to the belt-like plate 20. The elastic performance of the flat elastic rubber 10 itself can be sufficiently exerted against the compression force F, and the energy of the compression force F can be absorbed efficiently.

  In addition, by arrange | positioning the strip | belt-shaped plate 20 in a staggered direction between the through-holes 12 and the semi-cylindrical recessed parts 13, or between the through-holes 12, the through-holes 12 and the semi-cylindrical recessed parts 13 are deformed into a rice bowl shape, The belt-like plate 20 can be effectively rotated in the direction of the arrow r. Therefore, it is possible to effectively apply a tensile force to the flat elastic rubber 10 near the boundary with the belt-like plate 20 and absorb the compressive force F.

  Moreover, since the through-hole 12 penetrating the flat elastic rubber 10 in the vertical direction is provided, the through-hole 12 can be easily deformed in the crushing direction. More specifically, for example, in the case of a cavity that does not penetrate the flat elastic rubber 10 and air is sealed inside, the air inside the cavity becomes a compression resistance and suppresses deformation of the flat elastic rubber 10 in the direction of crushing the cavity. However, as described above, since the through hole 12 penetrates the flat elastic rubber 10, it can be easily deformed in the direction of crushing the space forming the through hole 12, that is, in the thickness direction. Therefore, it is possible to easily improve the compressive force absorbing performance of the flat elastic rubber 10 due to the deformation of the flat elastic rubber 10 in the direction of crushing the through holes 12.

  Furthermore, the belt-like plate 20 disposed inside the flat elastic rubber 10 rotates and moves inside the flat elastic rubber 10 by the applied compressive force F, but does not deform, and thus is caused by repeated deformation due to repeated compressive force F. There is no fear of fatigue failure, and it is possible to construct a durable compression-type shock absorber 1.

  As one of the impact absorbing devices using the compression buffer 1 configured as described above, a bumper device 110 equipped in the passenger car 100 will be described with reference to FIG. 3 showing a plan view of the passenger car 100 equipped with the bumper device 110.

  The bumper device 110 is a bumper arranged at the front and rear ends of the passenger car 100, and includes a compression type shock absorber 1 arranged in parallel in the width direction w, and the compression type shock absorber 1 is directly fixed to the front and rear parts of the vehicle body.

  With this configuration, even when the passenger car 100 collides in the front-rear direction, the impact of the collision is input as a compression force to the compression-type shock absorber 1 inside the bumper device 110. Can be absorbed. Therefore, it is possible to reduce the influence of the impact caused by the collision on the vehicle body.

  In addition, when the vehicle body front part of the passenger car 100 collides with an oncoming vehicle, there are a full lap collision in which all the vehicle body front parts collide and an offset collision in which only a part of the vehicle body front part collides. In the safety standards of the Road Transport Vehicle Law, it is mandatory to satisfy both the full lap collision and the offset collision. In the case of an offset collision, where the collision area is smaller than that of a full lap collision, it is necessary to increase the rigidity of the vehicle body in order to keep it at the same level as the damage level in a full wrap collision. However, the inertial force at the time of a collision accompanying the increase in the weight of the vehicle body has increased, and the effect of reducing the damage level due to the strengthening of rigidity has not been significant.

  As described above, by providing the compression buffer 1 in the bumper device 110, it is possible to improve the compression force absorption performance of the bumper device 110 with a small weight increase compared to the case where the rigidity of the vehicle body is enhanced. it can. Therefore, the passenger car 100 including the bumper device 110 that can clear both the full lap collision and the offset collision standards according to the safety standards of the Road Transport Vehicle Law can be configured.

  In addition, since the compression force absorption performance of the bumper device 110 can be improved with a small weight increase as compared with the case where the rigidity of the vehicle body is enhanced, a reduction in fuel consumption of the passenger car 100 can also be suppressed.

  Next, as one of the shock absorbers using the compression-type shock absorber 1 configured as described above, a longitudinal cross-sectional view of the damping connecting girder bridge 200 in the installation portion of the damping device 210 is shown for the damping device 210 incorporated in the continuous girder bridge. 4 showing FIG. 4, FIG. 5 showing a cross-sectional view of the damped connection girder bridge 200 at the cross-sectional position shown in FIG. 4, and FIG. 6 showing a plane direction cross-sectional view of the damped connection girder bridge 200 at the cross-sectional position shown in FIG. It explains together.

  In FIG. 5, the cross-sectional view on the left side of the center line CL shows a cross-sectional view in the direction of arrow AA in the cross-section of the damped connection girder bridge 200, and the cross-sectional view on the right side of the center line CL shows the damped connection girder. A cross-sectional view in the direction of arrows BB in the cross section of the bridge 200 is shown. 6 shows a cross-sectional view in the direction of arrows CC shown in FIG. 4, and FIG. 4 shows a cross-sectional view in the direction of arrows DD shown in FIG.

The damping connection girder bridge 200 includes a bridge pier 220, a T-type PC girder 230 supported via a support portion 221 installed on the upper surface of the pier 220, and a damping device 210.
The T-shaped PC girder 230 includes a horizontal floor 231 and a main girder 232 having a vertically long rectangular cross section disposed in the bridge axis direction (left and right in FIG. 4) on the bottom surface of the floor 231. A plurality of main girders 232 are arranged at a predetermined interval in the width direction (see FIG. 5), and a horizontal girder 233 in the width direction for connecting adjacent main girders 232 is provided in the pier 220 portion.

  Further, since the vertical load of the T-type PC girder 230 is supported by the bridge pier 220 by the support part 221 constituted by an elastic sliding bearing which is one of the movable supports, about 10% when the T-type PC girder 230 moves horizontally. It has an energy reduction effect due to friction.

  The damping device 210 protrudes from the upper surface of the compression type buffer part 211 provided on both sides in the bridge axis direction of the cross beam 233 of the T-type PC girder 230 and the part corresponding to the cross beam 233 at both ends of the bridge pier 220 in the bridge axis direction. It is comprised with the heel wall 212 made to do.

  As shown in the enlarged view of part a in FIG. 4 and the enlarged view of part b in FIG. 6, the compression-type shock absorber 211 has two flat elastic rubbers 10 juxtaposed in the bridge axis direction. Steel plates 11 arranged at both ends of the flat elastic rubber 10 are arranged to form a laminated state.

Each flat elastic rubber 10 constituting the compression-type shock absorber 211 includes a through hole 12 penetrating in the length direction (vertical direction in FIG. 5), and a half, like the flat elastic rubber 10 of the compression-type shock absorber 1 described above. A cylindrical recess 13 and a semi-cylindrical recess 13 and a belt-like plate 20 disposed between the through holes 12 or the through holes 12 are provided.
The compression type buffer part 211 is arranged so as to be sandwiched between the cross beam 233 and the eaves wall 212.

  When horizontal ground motion is input to the damped girder bridge 200 configured as described above, specifically, when horizontal ground motion of the supporting ground is input to the pier 220, the horizontal ground motion is transmitted to the T-type PC via the support portion 221. Input into digit 230.

  However, since the compression type buffer part 211 is arrange | positioned between the gutter wall 212 on both sides of the cross beam 233, the input horizontal seismic motion is input into the compression type buffer part 211 as a compression force, and a compression type buffer part 211 absorbs the vibration energy of horizontal seismic motion. Therefore, the horizontal ground motion input from the pier 220 and transmitted to the T-type PC girder 230 can be reduced, and the durable damped connection girder bridge 200 can be configured.

  Moreover, since the compression type buffer part 211 can absorb the vibration energy of a horizontal earthquake motion and can reduce the horizontal earthquake motion transmitted to the T-type PC girder 230, the amount of horizontal movement of the T-type PC girder 230 is reduced. Therefore, the clearance between the T-type PC girder 230 and the adjacent structure can be set narrow.

  In addition, also in the existing bridge, a bridge wall 212 is added to the bridge axial direction end of the upper surface of the pier supported by the movable support, and the compression type buffer part 211 is installed in the cross beam 233, so that the above existing bridge is attenuated. A bridge with the device 210 can be retrofitted.

  Further, in the case of a box girder bridge, a protruding portion corresponding to the horizontal girder 233 of the damped connecting girder bridge 200 is added in such a manner as to protrude downward from the bottom surface of the box girder, and a compression type buffer portion 211 is installed in the protruding portion. At the same time, a box girder bridge provided with the damping device 210 can be configured by adding the anchor wall 212 to the pier.

  Furthermore, as shown in FIG. 7, for example, a compression-type buffer portion 211a may be used as the attenuation device 210a of the attenuation building structure 200a. 7 shows an explanatory view of the attenuation building structure 200a. Specifically, FIG. 7 (a) shows a longitudinal sectional view of the attenuation building structure 200a provided with the attenuation device 210a, and FIG. The plane direction cross section of the EE arrow direction shown to 7 (a) is shown, FIG.7 (c) has shown the enlarged view of c part in FIG.7 (b).

  In this case, an installation recess 212a having an octagonal shape in a plan view is provided on the upper surface of the foundation structure 220a that supports the vertical load of the ground structure 230a in the ground via the support member 221a. A bottom-view octagonal octagonal projection 201a that protrudes downward from the bottom surface of the structure 230a and loosely fits in the installation recess 212a is installed, and a compression-type buffer is provided between the vertical inner surface of the installation recess 212a and the outer surface of the octagonal projection 201a The part 211a is installed.

  As shown in the enlarged view of part c in FIG. 7C, the compression-type shock absorber 211a has two flat elastic rubbers 10 juxtaposed in the radial direction of the octagonal protrusion 201a, that is, in the radial direction. And the steel plates 11 arranged at both ends of the flat elastic rubber 10 are arranged in a laminated state.

  Each flat elastic rubber 10 constituting the compression-type shock absorber 211a has a through-hole 12 penetrating in the length direction (vertical direction in FIG. 7A) in the same manner as the flat elastic rubber 10 of the compression-type shock absorber 1 described above. And a semi-cylindrical recess 13 and a belt-like plate 20 disposed between the semi-cylindrical recess 13 and the through hole 12 or between the through holes 12.

  When horizontal earthquake motion is input to the attenuation building structure 200a configured as described above, specifically, when horizontal earthquake motion is input to the attenuation building structure 200a via the foundation structure 220a, the horizontal earthquake motion is supported by the support member 221a. To the ground structure 230a.

  However, since the compression type buffering part 211a is arranged between the octagonal protrusion 201a and the installation concave part 212a, the input horizontal seismic motion is input to the compression type buffering part 211a as a compressive force, and the compression type buffering part 211a. Absorbs the vibration energy of horizontal earthquake motion. Therefore, the horizontal ground motion input from the foundation structure 220a and transmitted to the ground structure 230a can be reduced. Therefore, the durable attenuation building structure 200a can be comprised.

  As described above, an impact absorbing device or a shock absorbing device can be configured by using the compression type shock absorber 1 configured as described above, and the input compressive force can be efficiently absorbed. Further, as shown in FIG. In addition, the compression type buffer body 1a may be constituted by a belt-like plate 21 having a thin plate material through hole 21a penetrating in the thickness direction of the plate. 8A shows a cross-sectional view of the compression type shock absorber 1a in a state before the compression force F is applied, and FIG. 8B shows a compression type buffer in a state where the compression force F is applied and deformed. Sectional drawing of the body 1a is shown.

  Thereby, the flat elastic rubber 10 can penetrate the thin plate material through hole 21a, and the flat elastic rubber 10 on both sides of the belt-like plate 21 can be integrated. Therefore, a tensile force can be reliably applied to the flat elastic rubber 10 by the shearing force S generated at the boundary portion between the belt-like plate 21 and the flat elastic rubber 10. Therefore, the compression type buffer body 1a which has reliable compressive force absorption performance can be comprised.

  Moreover, as shown in FIG. 9, you may comprise the compression type buffer body 1b with the strip | belt-shaped plate 22 provided with the integrated convex part 22a which protrudes in the thickness direction of a plate. FIG. 9A shows a cross-sectional view of the compression buffer 1b in a state before the compression force F is applied, and FIG. 9B shows a compression buffer in a state in which the compression buffer F is deformed. Sectional drawing of the body 1b is shown.

  As shown in FIG. 9, the belt-like plate 22 has a semicircular cross section on each surface on both sides of the belt-like plate 22 from the center position in the longitudinal direction of the belt-like plate 22 to the longitudinal half on the tip side of the arrow r. A plurality of semi-cylindrical integrated convex portions 22a are provided.

  Thereby, since the flat elastic rubber 10 and the belt-like plate 22 can be integrated more firmly, by the rotational movement in the direction of the arrow r due to the deformation of the flat elastic rubber 10 in the direction of crushing the through hole 12 or the semi-cylindrical recess 13. The shearing force S can be generated at the boundary between the flat elastic rubber 10 and the belt-like plate 22 without losing energy. Therefore, a tensile force can be reliably applied to the flat elastic rubber 10. Therefore, the compression type buffer body 1b which has reliable compressive force absorption performance can be comprised.

  Even if the belt-like plate 22 is not provided with the integrated convex portion 22a, the flat elastic rubber 10 and the belt-like plate 22 may be more firmly integrated by the roughening process performed on the surface of the belt-like plate 22. it can.

  Furthermore, as shown in FIGS. 10 and 11, the compression buffer 1c may be constituted by a belt-like plate 23 having a rotating shaft 23a. FIG. 10A shows a perspective view of the compression buffer 1c, and FIG. 10B shows an exploded perspective view of 1b. FIG. 11A shows a plan view of the compression buffer 1c in a state before the compression force F is applied, and FIG. 11B shows a compression buffer 1c in a deformed state with the compression force F applied. The top view of is shown.

  The compression type shock absorber 1c is a flat plate elastic rubber 10 provided with a through hole 12 and a semi-cylindrical recess 13 as in the case of the compression type shock absorber 1, and a steel plate formed with a length L protruding from the upper and lower ends of the flat plate elastic rubber 10. 11b.

  Note that a U-shaped loose fitting ring 23b that allows loose fitting of the rotary shaft 23a is provided at desired positions of the upper and lower ends of the upper and lower protruding portions of the steel plate 11b. More specifically, a total of two loosely fitting rings 23b are provided at the left and right positions in the width W direction at the upper end of the steel plate 11b on the front side (lower side in FIG. 11) of the flat elastic rubber 10, and the rear side (upper side in FIG. 11). One loose-fitting ring 23b is provided at the center of the upper end of the steel plate 11b in the width W direction. The lower end of the steel plate 11b is the opposite, and is provided with one loose-fitting ring 23b at the front-side center and loose-fitting rings 23b on the back and right sides.

  The belt-like plate 23 is disposed at the center position in the width direction and the thickness direction of the upper and lower end faces of the belt-like plate, and includes a rotating shaft 23 a that protrudes from the upper and lower surfaces of the flat plate elastic rubber 10 in a state of being integrated with the flat plate elastic rubber 10. ing. In addition, the rotating shaft 23a is loosely fitted to the loosely fitting ring 23b in the compression buffer 1c so as to be rotatable and slidable in the thickness D direction.

  When the compression-type buffer body 1c configured in this way is compressed with a compression force F in the thickness D direction, the flat elastic rubber 10 is deformed in the compression direction in the same manner as the compression-type buffer body 1. At this time, the through-hole 12 and the semi-cylindrical recess 13 of the compression buffer 1 c are also deformed in the same manner as the compression buffer 1.

  Due to the deformation of the flat elastic rubber 10, the belt-like plate 23 rotates as indicated by an arrow r, and is deformed so that a square shape in plan view formed by the adjacent belt-like plates 23 spreads.

  At this time, for example, a force in the width W direction may be applied to the belt-like plate 23 due to deformation of the through hole 12 and the semi-cylindrical recess 13 in the direction of the arrow di and the arrow do. Since the movement in the width W direction is restricted by the loose fitting ring 23b, the belt-like plate 23 based on the deformation of the flat elastic rubber 10 by the compressive force F is converted into a rotational force in the direction of the arrow r. The amount of rotation can be increased.

  Therefore, the shear force S generated at the boundary portion between the belt-like plate 23 and the flat elastic rubber 10 with the increased amount of rotation is increased, and the tensile force applied to the flat elastic rubber 10 is also increased with the shear force S. The energy absorption performance of the mold buffer 1c can be improved.

In correspondence between the configuration of the present invention and the above-described embodiment,
The compression buffer of the present invention corresponds to the compression buffer 1, 1a, 1b, 1c or the compression buffer 211, 211a,
Similarly,
The elastic body and the flat elastic body correspond to the flat elastic rubber 10,
The cavity and the through hole correspond to the through hole 12,
The thin plate material corresponds to the belt-like plates 20, 21, 22, 23,
The integration means supports indirect vulcanization adhesion,
The compression force transmission thin plate material corresponds to the steel plates 11 and 11c,
The thickness direction corresponds to the thickness D,
The width direction corresponds to the width W,
The length direction corresponds to the length L,
The integrated reinforcing means corresponds to the thin plate material through hole 21a and the integrated convex portion 22a,
The rotation center axis corresponds to the rotation axis 23a,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

The perspective view of a compression type buffer. Explanatory drawing of a compression-type buffer. The top view of a passenger car provided with the bumper device using a compression buffer. The longitudinal cross-sectional view of the attenuation connection girder bridge of the installation part of an attenuation device. A cross-sectional view of a damped girder bridge. The plane direction sectional view of an attenuation connection girder bridge. Explanatory drawing of an attenuation building structure. Explanatory drawing of the compression-type buffer of another embodiment. Explanatory drawing of the compression-type buffer of another embodiment. An explanatory view of a compression type buffer of another embodiment. An explanatory view of a compression type buffer of another embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1a, 1b, 1c ... Compression type buffer 11, 11c ... Steel plate 10 ... Flat elastic rubber 12 ... Through-hole 20, 21, 22, 23 ... Band-shaped plate 21a ... Thin plate material through-hole 22a ... Integrated convex part 23a ... Rotating shaft 211, 211a ... Compression type buffer D ... Thickness F ... Compression force L ... Length W ... Width

Claims (6)

An elastic body having a desired elasticity and allowing an input of a compressive force;
A cavity formed inside the elastic body;
A thin plate disposed inside the elastic body;
The thin plate material is constituted by an integration means for integrating the elastic body with the elastic body,
A compression-type shock absorber in which the thin plate material is disposed in a direction crossing the compression direction of the compression force. The elastic body is composed of a flat plate-shaped elastic body that allows the input of the compressive force in the thickness direction,
The compression type shock absorber according to claim 1, wherein a compression force transmitting thin plate material for transmitting the input compression force to the flat plate elastic body is provided on both end surfaces of the flat plate elastic body in the thickness direction. The cavity is constituted by a through-hole penetrating in the length direction of the flat plate elastic body,
While arranging the thin plate material along the length direction of the flat plate elastic body,
The compression type shock absorber according to claim 2, which is disposed in a direction intersecting with a thickness direction and a width direction of the flat plate elastic body. In the thin plate material,
The compression type shock absorber according to claim 1, 2 or 3, further comprising a longitudinal rotation center axis serving as a rotation center of rotation in a width direction cross section configured in a thickness direction and a width direction. In the thin plate material,
The compression-type shock absorber according to any one of claims 1 to 4, further comprising integrated reinforcing means for reinforcing integration of the thin plate material and the elastic body by the integrating means. The elastic body is made of a rubber material,
The integration means;
The compression-type shock absorber according to any one of claims 1 to 5, which is configured by vulcanization adhesion for adhering the rubber material and the thin plate material at the time of vulcanization of the rubber material.

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