JPS6246738B2 - - Google Patents
Info
- Publication number
- JPS6246738B2 JPS6246738B2 JP20491082A JP20491082A JPS6246738B2 JP S6246738 B2 JPS6246738 B2 JP S6246738B2 JP 20491082 A JP20491082 A JP 20491082A JP 20491082 A JP20491082 A JP 20491082A JP S6246738 B2 JPS6246738 B2 JP S6246738B2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- piston
- tip
- piston rod
- center
- 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.)
- Expired
Links
- 239000007788 liquid Substances 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 6
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000002238 attenuated effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/22—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger
- F16F9/28—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger with two parallel cylinders and with the two pistons or plungers connected together
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Description
【発明の詳細な説明】
本発明は衝撃を直接物体又は人体に及ぼさずに
緩和された衝撃を物体又は人体に及ぼして衝撃に
よる損害の減少を図ることを目的とするものであ
る。DETAILED DESCRIPTION OF THE INVENTION An object of the present invention is to reduce damage caused by the impact by applying a softened impact to the object or the human body without directly applying the impact to the object or the human body.
本発明は特に油圧利用の緩衝装置に関する。 The present invention particularly relates to a hydraulic shock absorber.
油を収容したシリンダー内のピストンの片側に
復原ばねを介在させ、ピストンロツドの先端を復
原ばねを介在させた側と反対側のシリンダーカバ
ーより突出させ、ピストンロツドの先端を衝突受
部とする緩衝器の緩衝効果は相当見るべきものが
あるが、本発明者は従来の緩衝器では不十分と考
え、本発明をなしたのである。 A shock absorber in which a restoring spring is interposed on one side of a piston in a cylinder containing oil, the tip of the piston rod protrudes from the cylinder cover on the opposite side to the side where the restoring spring is interposed, and the tip of the piston rod is used as a collision receiving part. Although the buffering effect is quite remarkable, the inventor of the present invention believed that conventional shock absorbers were insufficient, and thus created the present invention.
即ち、油液内において復原用ばねによつて絶え
ず押圧力を受けているピストンを備えている内部
に油液を収容した内径の異なる複数個のシリンダ
ーを小から大の順に油液流通路をもつて相互に連
結し、第１シリンダーのピストンに連結したピス
トンロツドの先端を復原用ばねの押圧する側と反
対側のシリンダーカバーより突出させて衝突受部
とし、最終のシリンダーのピストンに連結したピ
ストンロツドの先端を前記ピストンロツドの突出
方向と反対方向にシリンダーカバーより突出させ
て被衝突物取付部とし、衝突部が第１シリンダー
のピストンロツドの先端の衝突受部に加わつた衝
撃力は第１シリンダーの油液及び復原ばねにより
弾力的に減衰されてピストン前面の油液に伝えら
れ、ピストンにより押圧された油液の一部は第２
シリンダーとの油液通路を経て第２シリンダー内
に進入して第２シリンダーのピストンを押圧する
が、第２シリンダー内の油液及び復原ばねにより
押圧力はさらに減衰されてピストン前面の油液に
伝えられ、ピストンにより押圧された油液の一部
が第３シリンダーとの油液通路を経て第３シリン
ダー内に進入して第３シリンダーのピストンを押
圧する。 In other words, the cylinder is equipped with a piston that is constantly subjected to a pressing force by a restoring spring in the oil, and has a plurality of cylinders with different inner diameters that house the oil inside, and has an oil flow passage in order from small to large. The tip of the piston rod connected to the piston of the first cylinder is made to protrude from the cylinder cover on the side opposite to the side pressed by the restoring spring to serve as a collision receiving part, and the tip of the piston rod connected to the piston of the last cylinder is The tip of the piston rod is made to protrude from the cylinder cover in the opposite direction to the protruding direction of the piston rod to serve as a collision object attachment part, and the impact force applied to the collision receiving part of the tip of the piston rod of the first cylinder is absorbed by the oil fluid of the first cylinder. and is elastically damped by the restoring spring and transmitted to the oil on the front surface of the piston, and a portion of the oil pressed by the piston is transferred to the second
The oil enters the second cylinder through the oil passage with the cylinder and presses the piston of the second cylinder, but the pressing force is further attenuated by the oil in the second cylinder and the restoring spring, and the oil flows to the front of the piston. A portion of the oil that is transmitted and pressed by the piston enters the third cylinder through the oil passage with the third cylinder and presses the piston of the third cylinder.
かくして、第１シリンダーのピストンロツドの
先端の衝突受部に加わつた衝撃力はシリンダーを
経由するにつれて順次減衰されて行き、最終シリ
ンダーのピストンに加わる押圧力は第１シリンダ
ーのピストンロツドの衝突受部に加わつた衝撃力
に比較すると著るしく弱小となつているから、最
終シリンダーのピストンロツドのシリンダー外に
突出した取付部を被衝突物に取付けておけば不慮
の衝突に際して物体又は人体に対する被害を防止
することができる。 In this way, the impact force applied to the collision receiver at the tip of the piston rod of the first cylinder is gradually attenuated as it passes through the cylinders, and the pressing force applied to the piston of the final cylinder is applied to the collision receiver of the piston rod of the first cylinder. Since the impact force is significantly weaker than the impact force caused by an accident, it is possible to prevent damage to the object or human body in the event of an unexpected collision by attaching the attachment part of the piston rod of the final cylinder that protrudes outside the cylinder to the object being hit. Can be done.
次に、本発明の実施例を図について説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
シリンダー１は数個の内径の異る気筒２を同心
的に大小の順に順次嵌合する形態となし、中心の
気筒２′を除き他の気筒２は外側の気筒壁と内側
の気筒線との間には平面円鍔形の空間３が相互に
形成されている。 The cylinder 1 has a configuration in which several cylinders 2 with different inner diameters are fitted concentrically in order of size, and the other cylinders 2 except for the central cylinder 2' are connected to the outer cylinder wall and the inner cylinder line. A planar circular brim-shaped space 3 is formed between them.
中心の気筒２′内のピストン４に連結されたピ
ストンロツド５の先端を一方のシリンダーカバー
６の中心より外側に突出させてその先端に衝突受
部７を設け、中心の気筒２′内のピストン４の往
動側に復原用の圧縮ばね８を介在させてピストン
４を絶えずピストン４の復動方向に圧力を加えて
いる様にする。 The tip of a piston rod 5 connected to the piston 4 in the center cylinder 2' projects outward from the center of one cylinder cover 6, and a collision receiving part 7 is provided at the tip, so that the piston 4 in the center cylinder 2' A compression spring 8 for restoring is interposed on the forward movement side of the piston 4 so that pressure is constantly applied to the piston 4 in the backward movement direction of the piston 4.
中心の気筒２′の気筒壁のピストン４の往動終
点に近い個所に油液流通孔９を設け、中心の気筒
２′とその外側の気筒２とを連通させる。 An oil flow hole 9 is provided in the cylinder wall of the center cylinder 2' near the end point of forward movement of the piston 4, so that the center cylinder 2' and the cylinders 2 on the outside communicate with each other.
第２の気筒２のピストン１０は鍔形をなし、中
心の気筒２′の外周に摺動自在に嵌合し、第２気
筒２の気筒壁のピストン１０の往復方向の前記油
液流通孔９開設位置と反対位置に油液流通孔１１
を設け、気筒２内のピストン１０の往動側に復原
用の圧縮ばね１２を介在させる。 The piston 10 of the second cylinder 2 has a flange shape, and is slidably fitted to the outer periphery of the central cylinder 2'. Oil flow hole 11 in the opposite position to the opening position
A compression spring 12 for restoring is interposed on the forward movement side of the piston 10 in the cylinder 2.
最外側の気筒２″のピストン１３も鍔形をな
し、中間の気筒２の外周に摺動自在に嵌合し、ピ
ストン１３に連結されたピストンロツド１４の先
端を他方のシリンダーカバー１５より外側に突出
させてその先端に被衝突物取付部１６を設け、最
外側の気筒２″内のピストン１３の往動側に復原
用の圧縮ばね１７を介在させる。そして、中心の
気筒２′内のピストン４の往動側、中間の気筒２
及び最外側の気筒２″内のピストン１３の復動側
に油液１８を充満させる。 The piston 13 of the outermost cylinder 2'' also has a flange shape and is slidably fitted to the outer periphery of the middle cylinder 2, with the tip of a piston rod 14 connected to the piston 13 protruding outward from the other cylinder cover 15. A colliding object attachment part 16 is provided at the tip thereof, and a compression spring 17 for restoring is interposed on the forward movement side of the piston 13 in the outermost cylinder 2''. Then, on the forward movement side of the piston 4 in the center cylinder 2', the intermediate cylinder 2
The reciprocating side of the piston 13 in the outermost cylinder 2'' is filled with oil 18.
本発明は上記の様に構成されているから、被衝
突物取付部１６を被衝突物１９に取付けて衝突受
部７を前方に突出させると、衝突受部７に物体が
衝突すると、その衝撃力によりピストン４が前進
し、復原用ばね８と共に気筒２′内の油液１８を
押圧し、圧縮ばね８は収縮し油液１８の一部は油
液流通孔９を通つて中間の気筒２に流入し、中間
の気筒２内の油液１８は一緒になつて気筒２内の
ピストン１０を押圧し前進させるが、ピストン１
０の表面積は中心の気筒２′の表面積よりも大で
あるから、ピストン４の油液１８に作用する押圧
力はピストン１０の油液１８に作用する押圧力よ
り小である。 Since the present invention is constructed as described above, when the collision receiving part 7 is projected forward by attaching the collision object attachment part 16 to the collision object 19, when the object collides with the collision reception part 7, the impact The piston 4 moves forward due to the force, presses the oil 18 in the cylinder 2' together with the restoring spring 8, the compression spring 8 contracts, and a part of the oil 18 passes through the oil flow hole 9 to the middle cylinder 2. The oil fluid 18 in the intermediate cylinder 2 presses the piston 10 in the cylinder 2 and moves it forward, but the piston 1
Since the surface area of 0 is larger than the surface area of the central cylinder 2', the pressing force acting on the oil 18 of the piston 4 is smaller than the pressing force acting on the oil 18 of the piston 10.
次に、ピストン１０に押圧されて中間気筒２と
最外側気筒２″との間の油液流通孔１１を通つて
最外側気筒２″に進入する油液１８の速度は更に
緩和される。 Next, the speed of the oil 18 that is pressed by the piston 10 and enters the outermost cylinder 2'' through the oil flow hole 11 between the intermediate cylinder 2 and the outermost cylinder 2'' is further reduced.
そして、最外側気筒２″のピストン１３に加わ
る油液１８の押圧力は衝撃受部７に加わつたとき
に比べてはるかに弱小となつているからピストン
ロツド１４、被衝突物取付部１６を経て被衝突物
に伝わる衝撃力は微弱であり、物体又は人体に対
する損害を極小に止めることができる。 Since the pressing force of the oil 18 applied to the piston 13 of the outermost cylinder 2'' is much weaker than that applied to the impact receiving part 7, the pressing force of the oil liquid 18 is much weaker than that applied to the impact receiving part 7, so it is The impact force transmitted to the colliding object is weak, and damage to the object or human body can be kept to a minimum.
そして、衝突受部に加わる押圧力が消滅すると
各ピストンは復原ばねにより押し戻されて原の状
態となる。 Then, when the pressing force applied to the collision receiver disappears, each piston is pushed back by the restoring spring and returns to its original state.
本器の被衝突物取付状態の安定確保のためには
最外側気筒２″のピストンロツド１４を鍔形ピス
トン１３の左右対称位置に１本づつ設けるとよ
い。油液流通孔９，１１の数も複数個設けるとよ
い。 In order to ensure the stability of the attachment of the object to be collided with this device, it is recommended to install one piston rod 14 in the outermost cylinder 2'' at a symmetrical position on the left and right sides of the flanged piston 13. It is recommended to provide multiple units.
また、シリンダー１は内径の異なる数個の気筒
を小より大の順に並列し、油液流通路により相互
に連結しても前例と同じ作用、効果が行われる。 Further, even if the cylinder 1 includes several cylinders having different inner diameters arranged in parallel in order from small to large and connected to each other by an oil flow passage, the same operation and effect as in the previous example can be achieved.
図面は本発明に係る緩衝装置の縦断面図であ
る。
符号説明、１……シリンダー、２……気筒、３
……空間、４……ピストン、５……ピストンロツ
ド、６……シリンダーカバー、７……衝突受部、
８……圧縮ばね、９……油液流通孔、１０……ピ
ストン、１１……油液流通孔、１２……圧縮ば
ね、１３……ピストン、１４……ピストンロツ
ド、１５……シリンダーカバー、１６……被衝突
物取付部、１７……圧縮ばね、１８……油液、１
９……被衝突物。
The drawing is a longitudinal sectional view of a shock absorber according to the present invention. Code explanation, 1...Cylinder, 2...Cylinder, 3
... Space, 4 ... Piston, 5 ... Piston rod, 6 ... Cylinder cover, 7 ... Collision receiver,
8... Compression spring, 9... Oil flow hole, 10... Piston, 11... Oil flow hole, 12... Compression spring, 13... Piston, 14... Piston rod, 15... Cylinder cover, 16 ... Collided object attachment part, 17 ... Compression spring, 18 ... Oil liquid, 1
9...Collided object.
Claims (1)
力を受けているピストンを備えている内部に油液
を収容した内径の異なる複数個のシリンダーを小
から大の順に油液流通路をもつて相互に連結し、
第１シリンダーのピストンに連結したピストンロ
ツドの先端を復原用ばねの押圧する側と反対側の
シリンダーカバーより突出させて衝突受部とし、
最終のシリンダーのピストンに連結したピストン
ロツドの先端を第１シリンダーのピストンロツド
の突出方向と反対方向にシリンダーカバーより突
出させて被衝突物取付部とすることを特徴とする
緩衝装置。 ２ 内径の異る気筒を同心的に大小の順に順次嵌
合する形態となしたシリンダーの中心の気筒内の
ピストンに連結されたピストンロツドの先端を一
方のシリンダーカバーの中心より突出させてその
先端に衝突受部を設け、中心気筒内のピストンの
往動側に復原ばねを介在させ、中心気筒の気筒壁
のピストンの往動終点に近い個所に油液流通孔を
設け、中心気筒の外側の第２気筒のピストンは鍔
形をなしていて中心気筒の外周に摺動自在に嵌合
され、復原ばねが附設されており、第２気筒の気
筒壁のピストンの往動方向の前記油液流通孔開設
位置と反対位置に油液流通孔を設け、最外側の気
筒のピストンも鍔形をなして第２気筒の外周に摺
動自在に嵌合され、かつ復原ばねが附設され、該
ピストンに連結されたピストンロツドの先端を他
方のシリンダーカバーより突出させてその先端に
被衝突物取付部を設け、中心気筒内のピストン往
動側、第２気筒及び最外側の気筒体のピストンの
復動側に油液を充満させて成る特許請求の範囲第
１項記載の緩衝装置。[Scope of Claims] 1 A plurality of cylinders with different inner diameters each containing an oil liquid and each having a piston that is constantly subjected to a pressing force by a restoring spring in the oil liquid are filled with the oil liquid in order from small to large. interconnected with distribution channels,
The tip of the piston rod connected to the piston of the first cylinder is made to protrude from the cylinder cover on the side opposite to the side pressed by the restoring spring to serve as a collision receiving part,
A shock absorbing device characterized in that the tip of a piston rod connected to a piston of a last cylinder is made to protrude from a cylinder cover in a direction opposite to the protruding direction of the piston rod of a first cylinder, and is used as a colliding object attachment part. 2. The tip of the piston rod connected to the piston in the cylinder at the center of the cylinder is designed to fit cylinders with different inner diameters concentrically in order of size, and the tip of the piston rod is made to protrude from the center of one of the cylinder covers. A collision receiving part is provided, a restoring spring is interposed on the forward movement side of the piston in the center cylinder, an oil flow hole is provided in the cylinder wall of the center cylinder near the end of the forward movement of the piston, and a The pistons of the two cylinders have a flange shape and are slidably fitted on the outer periphery of the center cylinder, and a restoring spring is attached to the pistons. An oil flow hole is provided at a position opposite to the opening position, and the piston of the outermost cylinder also has a collar shape and is slidably fitted to the outer periphery of the second cylinder, and a restoring spring is attached and connected to the piston. The tip of the piston rod protrudes from the other cylinder cover, and a collided object attachment part is provided at the tip, and the piston rod is attached to the forward movement side of the piston in the center cylinder, and to the return movement side of the piston in the second cylinder and the outermost cylinder body. The shock absorber according to claim 1, which is filled with an oil liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20491082A JPS5997335A (en) | 1982-11-22 | 1982-11-22 | Buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20491082A JPS5997335A (en) | 1982-11-22 | 1982-11-22 | Buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5997335A JPS5997335A (en) | 1984-06-05 |
| JPS6246738B2 true JPS6246738B2 (en) | 1987-10-05 |
Family
ID=16498405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20491082A Granted JPS5997335A (en) | 1982-11-22 | 1982-11-22 | Buffer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5997335A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0384352U (en) * | 1989-12-20 | 1991-08-27 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2088111A4 (en) * | 2006-11-28 | 2013-08-21 | Mitsubishi Electric Corp | ELEVATOR SHOCK ABSORBER |
| JP5275201B2 (en) | 2009-10-09 | 2013-08-28 | 株式会社東芝 | Shock absorber for operation mechanism for switchgear and lubrication method thereof |
-
1982
- 1982-11-22 JP JP20491082A patent/JPS5997335A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0384352U (en) * | 1989-12-20 | 1991-08-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5997335A (en) | 1984-06-05 |
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