JPS61136029A - Damper - Google Patents
DamperInfo
- Publication number
- JPS61136029A JPS61136029A JP25518184A JP25518184A JPS61136029A JP S61136029 A JPS61136029 A JP S61136029A JP 25518184 A JP25518184 A JP 25518184A JP 25518184 A JP25518184 A JP 25518184A JP S61136029 A JPS61136029 A JP S61136029A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- adjustment
- adjusting
- braking force
- 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
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
- F16F9/32—Details
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
- F16F9/49—Stops limiting fluid passage, e.g. hydraulic stops or elastomeric elements inside the cylinder which contribute to changes in fluid damping
-
- 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
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0245—Means for adjusting the length of, or for locking, the spring or dampers
-
- 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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は例えば自動車のグローブボックスなど、物品収
納用のボックスが開閉作動するような場合、当該開成動
、閉成動に対して常に適切な制動力を個毎して、望まし
い緩除な開成と適切なスピードでの開成ができるよう6
ニした緩衝装置に関する。[Detailed Description of the Invention] [Industrial Application Field] When a box for storing articles, such as a glove box of a car, opens and closes, the present invention always provides an appropriate method for the opening and closing operations. The braking force is adjusted individually so that the desired slow opening and opening at an appropriate speed can be achieved.
This invention relates to a shock absorber.
既知のように前記グローブボックスなどについても、そ
の開成作動時に、全く制動力が個毎されないとすれば、
特にボックス内に多くの物品が入れられていると、開成
限度にあってストッパ一部材と、その受は部材とが強く
衝当し、騒音が大き々なってくる。As is known, if no braking force is applied to the glove box or the like when the glove box is opened, then
Particularly when a large number of items are placed in the box, the stopper member and the receiver member will strongly collide with each other at the limit of opening, resulting in a large amount of noise.
そこで、上記のような急速な開成による騒音発生を抑止
するため、既に当該ボックスの開成に対して制動力を付
与し、これ番こより緩徐な開動を行わせるようにし、さ
らに閉動操作時には、上記のような大きな制動力でなし
に、小さな抗抵を与えるようにしそ、適度に速やかな当
該操作が可能となるよう番こした緩衝装置が、既に提案
されている。Therefore, in order to suppress the noise generated by the rapid opening as described above, a braking force is already applied to the opening of the box, so that the opening is performed more slowly than this, and when the closing operation is performed, the braking force is applied to the opening of the box. A shock absorbing device has already been proposed which is designed to provide a small amount of resistance without applying such a large braking force, so that the operation can be performed appropriately quickly.
上記装置(実公昭59−27558号)は第3図番こ示
す通り、シリンダーaの通気孔すが貫設された一端側と
、同シリンダーaに進退自在なるよう内嵌した作動ピス
トンCとを、夫々所望部材に連結し、同図talのよう
に当該部材が開成されて作動ピストンCが矢印Aの伸長
方向へ移動するときには、同ピストンCの先頭部に嵌合
係止されているひれ状の弾性弁体dにおけるシール周縁
部d′が、シリンダーaの内周面へ強(圧接するように
なり、これにより作動ピストンCの当該移動に対する制
動力が強められ、これ薔こ対し同図(blの如く所要部
材の閉成操作により矢印A′の収縮方向へ移動したとき
は、弾性弁体dが縮径状態となってシール周縁部dとシ
リンダーaとの間に通隙が生じ、これによって作動ピス
トンCの当該移動に対する抵抗が弱められ、同ピストン
Cは速やかに移動するよう構成されたものである。As shown in Figure 3, the above device (Japanese Utility Model Publication No. 59-27558) has one end of a cylinder a through which a vent hole is penetrated, and an operating piston C fitted inside the cylinder a so as to be able to move forward and backward. , are connected to desired members, respectively, and when the members are opened and the actuating piston C moves in the direction of extension of arrow A as shown in FIG. The seal peripheral edge d' of the elastic valve body d comes into strong (pressure) contact with the inner circumferential surface of the cylinder a, thereby increasing the braking force against the movement of the actuating piston C. When the elastic valve body d is moved in the contraction direction of arrow A' by the closing operation of the required member as shown in bl, the diameter of the elastic valve body d is reduced and a gap is created between the seal periphery d and the cylinder a. The resistance to the movement of the working piston C is weakened by this, and the piston C is configured to move quickly.
また同図のe、e・・・・・は突条であって、当該突条
e、e・・・・・上に弾性弁体dを嵌合当接させてお(
ことにより、長期間不使用状態が続イテモ、コム等によ
る弾性弁体dとシリンダーaの内周面との膠着が生じて
始動不能となる如き支障を解消しようとしている。Further, in the same figure, e, e... are protrusions, and the elastic valve body d is fitted onto and abutted on the protrusions e, e...
By doing so, we are trying to eliminate problems such as when the elastic valve body d and the inner circumferential surface of the cylinder a stick together due to a valve comb or the like after a long period of non-use, resulting in the inability to start.
しかし、上記既応装置によるときは、通気孔すは所定通
気量であるから、弾性弁体dのシール周縁部d′がシリ
ンダーaの内周面に圧接する力だけに制動力を依存して
いることとなり、所要部材が軽量負荷(カセット式テー
プレコーダのカセット装填蓋など)の場合には有効に利
用できるものの、大荷重のときは充分な空気抵抗が得ら
れず、開成スピードも大となって騒音抑止の効果が減殺
されてしまい、さらに特殊形状の弾性弁体dを、作動ピ
ストンci二組込まねばならないので取付工数も多(な
り、また当該弁体dの耐久性にも問題が残される。However, when using the above-mentioned existing device, since the ventilation hole has a predetermined ventilation amount, the braking force depends only on the force of the seal peripheral edge d' of the elastic valve body d coming into pressure contact with the inner circumferential surface of the cylinder a. Although it can be used effectively when the required material has a light load (such as the cassette loading lid of a cassette tape recorder), when the load is large, sufficient air resistance cannot be obtained and the opening speed becomes high. In addition, since the specially shaped elastic valve body d must be incorporated into the actuating piston ci2, the number of installation steps is large (and there are also problems with the durability of the valve body d). .
また第3図のように突条e、e・・・・・を突設して始
動を保証しようとすると、弾性弁体dが突条e、e・・
・・・に嵌り込んでいるとき、シール周縁部d′とシリ
ンダーaの内周面との開−こ可成りの通隙が出来ること
となり、この結果同弁体dが突条e、e・□・・・・に
嵌入してい(とき、逆に脱出するとき何れも急激な抵抗
差が生じ、満足すべき開閉動が期待し難いこととなる。Also, if you try to ensure starting by providing protrusions e, e... as shown in Fig. 3, the elastic valve body d will cause the protrusions e, e...
..., a considerable gap is created between the seal peripheral edge d' and the inner circumferential surface of the cylinder a, and as a result, the valve body d is fitted into the protrusions e, e, □... When it gets stuck in (or conversely, when it comes out), a sudden difference in resistance occurs, making it difficult to expect satisfactory opening and closing movements.
本発明は、」1記従来の難点に鑑み作動ピストンとシリ
ンダーとの圧接状態を可変とするのではな(、シリンダ
ー内と連通ずる通気孔の大きさを可変としてやることに
よって、開成外力が大き々なって、所要部材の開成スピ
ードが太き(なった場合には、通気孔からの通気量を制
御して、小さな荷重から充分に大きな荷重に至るまで、
常に緩徐な作動を保証し、これにより不快な騒音の発生
を完全に抑止すると共に、閉動操作すなわちと記外力の
方向が反対になったときにも、当該操作スピードを充分
に早くしても、その場合の負荷が大とならないように制
動力が自動調整され、これ番こより通常の操作スピード
の場合と同等の力で閉成することを可能となし、かつ、
かかる緩衝装置を空気圧の利用に際し、作動ピストンに
特殊構成の弁体を用いることなしに簡潔な構成により安
価に提供し、しかも始動を保証するようにする場合にも
、従来例のように開閉作動時における極端な前記抵抗差
を生じなくてすむようにするのが、その目的である。The present invention has been developed by making the pressure contact state between the actuating piston and the cylinder variable in view of the conventional difficulties described in 1. By making the size of the ventilation hole communicating with the inside of the cylinder variable, the opening external force is large. As a result, the opening speed of the required parts increases (if this happens, the amount of ventilation from the ventilation holes is controlled and the load is increased from a small load to a sufficiently large one).
It always guarantees slow operation, thereby completely suppressing the generation of unpleasant noise, and even when the direction of the external force is opposite to the closing operation, even if the operation speed is sufficiently high. In that case, the braking force is automatically adjusted so that the load does not become large, and from this point on, it is possible to close with the same force as at normal operating speed, and
When using air pressure, such a shock absorber can be provided at low cost with a simple configuration without using a specially configured valve body for the operating piston, and when starting is guaranteed, the opening/closing operation as in the conventional example The purpose is to avoid the need for extreme resistance differences at times.
本発明は上記の目的を達成するため、緩衝装置にあって
シリンダーには、その一端側に作動ピストンを、また、
通気孔を設けた他端側に第1の調整空間を介して対向し
、かつ当該他端倶11帰用スフリングにより連結された
調整ピストンを、夫々進退自在なるよう密接内嵌し、上
記シリンダーの周壁には、作動ピストンの夫々急速伸長
、急速縮小による第2の調整空間の拡大負圧化、縮小昇
圧により、調整ピストンが復帰用スプリングを夫々伸長
変移、圧縮変移することで開口度合が削減、増大される
位置に調整通孔を貫設する構成バしたことを特徴として
いる。In order to achieve the above object, the present invention provides a shock absorber, in which the cylinder has an actuating piston at one end thereof, and
An adjustment piston facing the other end provided with the ventilation hole via a first adjustment space and connected to the other end by a return suffling 11 is closely fitted inside the cylinder so as to be able to move forward and backward. On the peripheral wall, the adjustment piston expands and compresses the return spring by expanding and reducing the pressure of the second adjustment space by rapidly expanding and contracting the operating piston, respectively, thereby reducing the degree of opening. It is characterized by a structure in which an adjustment through hole is provided through the increased position.
本発明は上記の通り構成することによって、大きな一方
向の外力を受け、これにより急速に摺動する作動ピスト
ンの変位により、前記第2の調整空間の内圧な負圧化さ
せ、これによって調整ピストンを、このような急速変位
のときだけ移動させるようにし、当該移動番こよって調
整通孔の開口度合を絞ってしまい、これにより第2の調
整空間と外気との通気量を減殺することで、前記作動ピ
ストンの変位に対する第2の調整空間への外気流入量を
抑制し、かくして作動ピストンの当該動きに対する制動
力を増大させるようになし、一方送方向への外力付加時
にあっては、同じ(調整ピストンを移動させるが、今度
は逆に当該移動によって調整通孔の開口度合を大とし、
これにより第2の調整空間と外気との通気量を増大させ
ることで、前記作動ピストンの変位による第2の調整空
間からの流出通気量を大とし、かくして同作動ピストン
の変位に対する制動力を減殺させ得るようにするのであ
る。By configuring as described above, the present invention receives a large external force in one direction, and as a result, the internal pressure of the second adjustment space becomes negative due to the displacement of the rapidly sliding actuating piston, and thereby the adjustment piston is moved only during such rapid displacement, and the degree of opening of the adjustment hole is narrowed depending on the movement time, thereby reducing the amount of ventilation between the second adjustment space and the outside air. The amount of outside air flowing into the second adjustment space with respect to the displacement of the working piston is suppressed, thus increasing the braking force against the movement of the working piston, while the same ( The adjustment piston is moved, but this time, the degree of opening of the adjustment hole is increased by the movement,
This increases the amount of ventilation between the second adjustment space and the outside air, thereby increasing the amount of air flowing out from the second adjustment space due to the displacement of the working piston, thus reducing the braking force due to the displacement of the working piston. We will make it possible for them to do so.
本発明を先ず第1図の実施例によって詳記すれば、シリ
ンダ一連結部1を具備したシリンダー3には、その一端
側に通気孔4を貫設した開通端5が形成され、その中心
部から直交状に上記のシリンダ一連結部1が外側へ突設
されており、同連結部1の先端には図示されていない所
望取付箇所に連結ピンにより枢着するための連結環1′
が形成され、同シリング−3の他端側は全開状態の開通
端6′となっている。First, the present invention will be described in detail with reference to the embodiment shown in FIG. The above-mentioned cylinder connecting portion 1 is provided perpendicularly to the outside and protrudes outward, and at the tip of the connecting portion 1 is a connecting ring 1' which is pivotally attached to a desired attachment point (not shown) by a connecting pin.
is formed, and the other end of the sill 3 is an open end 6' in a fully open state.
さらに当該シリンダー3の周壁3′には調整通孔6が、
長手方向略中央部に穿設されており、図示例では長手方
向へ所定間隔だけ離間させた左端側から順次大径の第1
小孔らa、小径の第2、第3小孔6b、6cによって構
成されているがシリンダー長手方向に長い細長孔として
1つの孔としてもよい。Furthermore, an adjustment hole 6 is provided in the peripheral wall 3' of the cylinder 3.
The holes are formed approximately in the center in the longitudinal direction, and in the illustrated example, the first holes with larger diameters are formed in order from the left end side at a predetermined interval in the longitudinal direction.
Although it is composed of a small hole a, and second and third small holes 6b and 6c having small diameters, it may be formed as one elongated hole extending in the longitudinal direction of the cylinder.
次に−F記シリンダー3・内には、その右端側にあって
作動ピストン7が摺動自在に嵌合され、同ピストン7の
作動杆7aは前記開通端6′から外側へ延出されており
、同杆7aの廷出端には連結孔を穿設することで、所望
取付箇所にこれまた連結ピンなどで連結するためのピス
トン連結部2が形成され、図中7b、7bは作動ピスト
ン7の外周に嵌合係止したOリングを示している。Next, an operating piston 7 is slidably fitted into the cylinder 3 indicated by F on its right end side, and an operating rod 7a of the piston 7 extends outward from the open end 6'. By drilling a connecting hole in the protruding end of the rod 7a, a piston connecting part 2 is formed for connecting with a connecting pin or the like at a desired attachment point, and 7b and 7b in the figure are actuating pistons. 7 shows an O-ring that is fitted and locked onto the outer periphery of 7.
さらに同シリンダー3内の左端側には調整ピストン8が
第1の調整空間10bを介し前記開通端5に対向してこ
れまた摺動自在なるよう嵌合されていると共に同ピスト
ン8と前記開通端6とが、シリンダー3内ζこ配設され
た復帰用スプリング9にて連結されている。Furthermore, an adjustment piston 8 is fitted on the left end side of the cylinder 3 so as to be slidable therebetween, facing the open end 5 through a first adjustment space 10b, and also to be slidable between the piston 8 and the open end 5. 6 are connected by a return spring 9 disposed within the cylinder 3.
図中83は当該調整ピストン8に嵌合係止の摺動Oリン
グであり、前記ピストン8は平常時にあって第1図のt
blに示された位置に存し、従って上記両摺動Oリング
8a、8aが調整通孔6の第1小孔6aにおける左右両
側にあって、シリンダー3の内周面と気密に圧接し、こ
れにより、上記第1小孔6aから外気がシリンダー3内
に流入しない状態にある。83 in the figure is a sliding O-ring that fits and locks the adjusting piston 8, and the piston 8 is in normal condition at t in FIG.
The sliding O-rings 8a, 8a are located on both left and right sides of the first small hole 6a of the adjustment hole 6, and are in airtight pressure contact with the inner circumferential surface of the cylinder 3. As a result, outside air does not flow into the cylinder 3 through the first small hole 6a.
そして、さらに上記平常時にあっては、作動ピストン7
が同上図の位置にあり、従って同ピストン7と調整ピス
トン8との間にあって、調整通孔6の第2、第3小孔6
b、6cにて外気と連通状態にある第2の調整空間10
aが形成されることになる。Furthermore, in the above-mentioned normal state, the operating piston 7
is located in the position shown in the above figure, and is therefore between the piston 7 and the adjustment piston 8, and the second and third small holes 6 of the adjustment through hole 6
The second adjustment space 10 is in communication with the outside air at points b and 6c.
a will be formed.
そこで上記した緩衝装置を、所定の部材に、例えば自動
車用グローブボックスのハウジング側にシリンダ一連結
部1の連結環1′を、また前記ハウジング内に回動自在
に枢支されるグローブボックス本体側にピストン連結部
2を、それぞれ回動自在に枢着して使用すれば第1図の
(blに示す平常時の状態から同図1cIに示す如く作
動杆7aの右動する如き外力が作用し、しかもこの際当
該外力が、それほど大きくないときには、同図1c)の
通り前記第2の調整空間10aが上記の図1blにおけ
る状態よりも、拡大されて負圧化されるものの、外気が
第2、第3通孔6b。Therefore, the above-mentioned shock absorber is attached to a predetermined member, for example, the connecting ring 1' of the cylinder connecting part 1 is attached to the housing side of an automobile glove box, and the connecting ring 1' of the cylinder connecting part 1 is attached to the glove box main body side which is rotatably supported in the housing. If the piston connecting portions 2 are rotatably connected and used, an external force such as moving the operating rod 7a to the right from the normal state shown in FIG. 1 (bl) to the right as shown in FIG. At this time, when the external force is not so large, the second adjustment space 10a is enlarged and has a negative pressure than the state in FIG. 1bl, as shown in FIG. 1c), but the outside air is , third through hole 6b.
6cから同空間に流入するので、開孔6b、6Cからの
通気量に対応して緩徐なスピードにより作動ピストン7
の当該右動が許容され、前掲例のグローブボックスなど
が、ゆっくりと開放されることとなる。Since it flows into the same space from 6c, the actuating piston 7 moves at a slow speed corresponding to the amount of ventilation from the openings 6b and 6C.
This movement to the right is allowed, and the glove box, etc. in the above example is slowly opened.
次に上記外力が可成り大きい場合、すなわちグローブボ
ックスに大重量の荷重がかかっていたとすれば、作動杆
7aの右動スピードが大となり、これにより負圧化が急
速に進むため第2、第3小孔らb、6cからの外気導入
では間に合わす番こ、当該負圧化が進行して調整ピスト
ン8が復帰用スプリング9の弾発力に抗してこれを伸長
する右方向へ移動し、この結果同図の(dlに示す如く
調整ピストン8が第2小孔6bをも閉塞してしまい、第
3小孔6cだけが第2の調整空間1oaを外気と連通ず
ることになる。Next, if the above-mentioned external force is quite large, that is, if a heavy load is applied to the glove box, the rightward movement speed of the operating rod 7a will be large, and as a result, negative pressure will rapidly progress, and the second and second When outside air is introduced through the small holes b and 6c, the negative pressure progresses and the adjustment piston 8 moves to the right to extend against the elastic force of the return spring 9. As a result, as shown in (dl) in the figure, the adjustment piston 8 also closes the second small hole 6b, and only the third small hole 6c communicates the second adjustment space 1oa with the outside air.
そして、この際復帰用スプリング9の弾力が、第2の調
整空間10aの負圧と一致するに至る位置まで調整ピス
トン8が右動する。At this time, the adjustment piston 8 moves to the right until the elasticity of the return spring 9 matches the negative pressure in the second adjustment space 10a.
この結果上記第2の調整空間10aに流入する空気の量
が削減されることとなり、従って作動ピストン7の右動
スピードは減少、すなわち同ピストン7の移動に対して
、より大なる制動力が付与され、ボックスが重いような
ときでも、急速な開放とはならず、緩徐な開放スピード
が確保される。As a result, the amount of air flowing into the second adjustment space 10a is reduced, and the rightward movement speed of the actuating piston 7 is therefore reduced, which means that a greater braking force is applied to the movement of the piston 7. Therefore, even when the box is heavy, it does not open quickly, but maintains a slow opening speed.
上記のようにしてグローブボックスが開放状態となれば
、作動ピストン7が右動限度で停止し、爾後第3小孔ら
Cからの外気流入により、第2の調整空間10 aの内
圧が上昇するから、調整ピストン8が復帰用スプリング
9により左動復帰する。When the glove box is opened as described above, the actuating piston 7 stops at the limit of rightward movement, and then the internal pressure of the second adjustment space 10a increases due to the inflow of outside air from the third small hole C. Then, the adjustment piston 8 is returned to the left by the return spring 9.
次に」ユ記の如き状態から、今度は逆に延出した作動杆
7aを押し込む方向へ外力が加えられた場合には、$2
図telに示す通り作動ピストン7が左動することにな
り、この際作動ピストン7の押し込みスピードが、ゆる
やかであれば、第2の調整空間10aは正圧になるもの
の第1、第2小孔6b、6cから外気へ適度に排出され
、所望程度の軽い制動力に抗した前掲ボックス等の閉成
が可能となる。Next, if an external force is applied in the direction of pushing in the operating rod 7a that has extended in the opposite direction from the state shown in "Y", the amount of $2
As shown in Figure 1, the actuating piston 7 will move to the left. At this time, if the pushing speed of the actuating piston 7 is slow, the second adjustment space 10a will have positive pressure, but the first and second small holes 6b and 6c are appropriately discharged to the outside air, making it possible to close the aforementioned boxes and the like against a desired level of light braking force.
ここで上記外力が、例えば閉成操作を急速に行った場合
のものであれば、作動ピストン7の左動スピードが大と
なり、この結果第2の調整空間10aの正圧が大となる
から、調整ピストン8が平常時の位置から同図のけ)に
示す如(、復帰用スプリング9を圧縮して左動し、これ
により大径とした第1小孔6aの閉塞が解かれ、調整通
孔6が全開状態となるから、作動ピストン7の左動スピ
ードが大であっても、当該空間1oaからの排気量が増
大することで、小さな力によりボックス等の閉成操作な
どが可能となる。Here, if the above-mentioned external force is caused by, for example, rapidly performing a closing operation, the leftward movement speed of the actuating piston 7 becomes large, and as a result, the positive pressure in the second adjustment space 10a becomes large. The adjustment piston 8 moves from its normal position to the left by compressing the return spring 9, as shown in the figure (see figure), thereby unblocking the first small hole 6a, which has a large diameter, and opening the adjustment passage. Since the hole 6 is fully open, even if the leftward movement speed of the operating piston 7 is high, the displacement from the space 1 oa increases, making it possible to close boxes, etc. with a small force. .
次に本発明の第2実施例を第2図によって詳記すると、
その基本的構成は前実施例のものと同じで、同一部材に
は同一符号が付されているが、その相違するところは、
作動ピストン7と調整ピストン8とに、夫々第2の調整
空間1oaに向けて先細りとした内向先端部7′、外向
先端部8′コが対向して突設されている点にある。Next, the second embodiment of the present invention will be described in detail with reference to FIG.
Its basic structure is the same as that of the previous embodiment, and the same members are given the same symbols, but the differences are as follows:
The operating piston 7 and the adjusting piston 8 have an inward tip 7' and an outward tip 8', respectively, which are tapered toward the second adjustment space 1oa and protrude from each other.
そして当該実施例では、平常時iこあって第2図tal
の如く作動ピストン7により左方へ押動された調整ピス
トン8が復帰用スプリング9を圧縮しており、このこと
により同スプリング9が所望の復原力を蓄勢させておく
のである。In this embodiment, in normal times, there is a
As shown, the adjusting piston 8 pushed leftward by the operating piston 7 compresses the return spring 9, so that the spring 9 stores a desired restoring force.
従って上記平常時には調整ピストン8と作動ピストン7
との間にあって、両ピストンの衝当番こより鼓状の第2
の調整空間1oaが形成され、当該空間10 aは第1
、第2、第3小孔6a。Therefore, under normal conditions, the adjusting piston 8 and the operating piston 7
There is a second drum-shaped part between the two pistons.
An adjustment space 1oa is formed, and the space 10a is the first adjustment space 1oa.
, second and third small holes 6a.
6b、らCのすべてを介して外気と連通状態にある。6b, et c. are all in communication with the outside air.
そこで上記した緩衝装置を、所定の部材に、例えば自動
車用グローブボックスのハウジング側にシリング一連結
部1の連結環1′を、また前記ハウジング内務こ回動自
在に枢支されるグローブボックス本体側にピストン連結
部2を、それぞれ回動自在に枢着して使用すること番こ
なるが、第2図talの如き平常状態から同図の(b)
に示す如々作動杆7aの右動する如き外力が作用した際
、復原力を蓄勢していた復帰用スプリング9が圧縮状態
から伸長することで、調整ピストン8が強制的に右動さ
れ、同図1b)に示す位置、すなわち摺動リング8a、
8aの間に第1小孔6aが存する状態となる。Therefore, the above-mentioned shock absorber is attached to a predetermined member, for example, the coupling ring 1' of the Schilling series coupling part 1 is attached to the housing side of an automobile glove box, and the coupling ring 1' of the Schilling series coupling part 1 is attached to a predetermined member, and the coupling ring 1' of the Schilling series coupling part 1 is attached to a predetermined member. The piston connecting portions 2 are rotatably attached to each other for use, but from the normal state as shown in FIG. 2 to the state shown in FIG.
When an external force is applied to move the operating rod 7a to the right as shown in the figure, the return spring 9, which had stored restoring force, expands from the compressed state, and the adjustment piston 8 is forcibly moved to the right. The position shown in FIG. 1b), that is, the sliding ring 8a,
The first small hole 6a exists between the holes 8a.
このため前掲グローブボックスに用いたときなどには、
当該ボックスの開成始動時に復帰用スプリング9が調整
ピストン8と作動ピストン7との双方を強制的に右動さ
せることとなり、従って当該実施例によるときは、緩衝
装置が不使用状態により前記の如(摺動01Jング7b
。Therefore, when used in the glove box mentioned above,
When the box is started to open, the return spring 9 forcibly moves both the adjustment piston 8 and the operating piston 7 to the right. Therefore, in this embodiment, when the shock absorber is not in use, the return spring 9 is forced to move to the right. Sliding 01J 7b
.
7b、8a、8aがシリンダー3の内周面に膠着するよ
うなことがあっても、上記スプリング9の圧縮による復
原力の大きさを適度に設定しておけばこれが剥離されて
可動状態となり、不本意な作動不能状態となることを防
止することかできる。Even if 7b, 8a, and 8a stick to the inner peripheral surface of the cylinder 3, if the magnitude of the restoring force due to the compression of the spring 9 is set appropriately, they will be separated and become movable. It is possible to prevent an involuntary inoperable state.
そして木実施例のその後の作動状態すなわち伸長方向へ
の外力がそれほど大きくないとき、大きいとき、そして
収縮方向への外力が緩徐であるとき、急速であるときの
動作は同図(bl tcl (dlte+に示す通りで
、前実施例と全4同じである。The subsequent operating states of the wooden embodiment, that is, when the external force in the direction of extension is not so large or large, and when the external force in the direction of contraction is slow or rapid, are shown in the same figure (bl tcl (dlte+ As shown in , all four are the same as in the previous embodiment.
ここで摺動0リング7b、7b、8a、8aを用いるこ
とは本発明に必ずしも必要ではないが同上Oリングを用
いるようにすることで、より空気抵抗を正確齋こ規制で
き、所望緩徐な作動を保証することが可能となる。Although the use of the sliding O-rings 7b, 7b, 8a, and 8a is not necessarily necessary for the present invention, by using the same O-rings as above, air resistance can be more precisely regulated and the desired slow operation can be achieved. It becomes possible to guarantee.
また調整通孔6を1個だけ長手方向に太き々穿設するよ
りは、図示例の如々複数個だけ散在させ小孔すなわちオ
リフィス状のものを形成してやる方が、極めて緩徐な作
動を実現でき、これにて大荷重に耐え得る緩衝装置の提
供が容易となる。Also, rather than drilling only one adjustment hole 6 with a large diameter in the longitudinal direction, it is better to scatter a plurality of adjustment holes 6 to form small holes, or orifices, as shown in the illustrated example, to achieve extremely slow operation. This makes it easy to provide a shock absorber that can withstand large loads.
本発明は前記のよ5 +i構成され、上記実施例の如く
具現できるものであるから、前記ボックスなどの開閉装
置等に使用することで、単に所望物体の動きに対し、制
動力を付与して騒音発生を抑止できるというだけでなく
、当該動きが大なる外力によるときは、当該制動力を自
動的に増大させ、従って外力が小さいときも大きいとき
にも、空気圧の利用により常に緩徐な開放作動を確保す
ることができ、しかも上記外力の逆行時にあっても、そ
の逆行が速やかに行われたときには、自動的に当該送動
に対する制動力−15=
が低減され、これにより、ゆっ(りと逆行がなされた場
合と変らない軒い外力にょる遊動が可能となり、使い勝
手のよい緩衝装置を提供できる。Since the present invention has the above-mentioned structure and can be implemented as in the above-mentioned embodiments, it can be used in the opening/closing device of the box, etc., to simply apply a braking force to the movement of a desired object. Not only can noise generation be suppressed, but when the movement is caused by a large external force, the braking force is automatically increased, and therefore the opening operation is always gradual by using air pressure, regardless of whether the external force is small or large. Moreover, even when the external force is reversed, if the reverse is quickly performed, the braking force -15= for the relevant transmission is automatically reduced, and as a result, the The eaves can be moved by the external force in the same way as when the eaves are moved backwards, and an easy-to-use shock absorber can be provided.
さらに本発明によるときは、作動ピストンに特殊な弁体
を形成したり組込み工程を必要とせず、従って安価に提
供でき、制動力の調整を、シリンダー内へ流入またはシ
リンダー外に流出する通気量の制御によって行うように
したので、大荷重と対しても充分に対処できる緩衝装置
を容易に製作でき、しかも始動を保証しようとするとき
も、従来例の如く開閉作動における極端な抵抗差なしに
、その目的を達成することができる。Furthermore, according to the present invention, there is no need to form a special valve body on the actuating piston or an assembly process, and therefore it can be provided at low cost, and the braking force can be adjusted by adjusting the amount of air flowing into or out of the cylinder. Since this is done through control, it is easy to create a shock absorber that can adequately handle large loads, and even when trying to guarantee starting, there is no extreme difference in resistance between opening and closing operations as in the conventional case. That purpose can be achieved.
第1図のtalは本発明に係る緩衝装置の一実施例を示
す斜視図、同図のtb)以下に同装置の作動状態を説示
するもので(blがその平常状態、+c+が緩徐な伸長
状態、tdlが急速な伸長状態、(e)が緩徐な収縮状
態、lflが急速な収縮状態における夫々の縦断正面図
、第2図は同発明装置の他実施例を示し、そのtalが
平常状態、tblが緩徐な伸長状態、telが急速な伸
長状態、td)が緩除な収縮状態、telが急速な収縮
状態における夫々の縦断正面図、第3図は従来の緩衝装
置を示し、その(alは伸長状態、tb)は収縮状態に
おける夫々要部縦断正面図である。
3・・・・・シリンダー
3′・・・・シリンダーの周壁
4・・・・・通気孔
6・・・・・調整通孔
7・・・・・作動ピストン
8−0・・調整ピストン
9・・・・・復帰用スプリングtal in FIG. 1 is a perspective view showing an embodiment of the shock absorbing device according to the present invention, and tb in the same figure shows the operating state of the device (bl is its normal state, +c+ is a slow expansion Fig. 2 shows another embodiment of the device of the invention, and tal is in the normal state. , tbl is a slow extension state, tel is a rapid extension state, td) is a slow contraction state, and tel is a rapid contraction state. al is a longitudinal sectional front view of the main part in the extended state, and tb) is the main part in the contracted state. 3...Cylinder 3'...Cylinder peripheral wall 4...Vent hole 6...Adjustment hole 7...Operating piston 8-0...Adjustment piston 9.・・・Return spring
Claims (1)
通気孔を設けた他端側に第1の調整空間を介して対向し
、かつ当該他端側と復帰用スプリングにより連結された
調整ピストンを、夫々進退自在なるよう密接内嵌し、上
記シリンダーの周壁には、作動ピストンの夫々急速伸長
、急速縮小による第2の調整空間の拡大負圧化、縮小昇
圧により、調整ピストンが復帰用スプリングを夫々伸長
変移、圧縮変移することで開口度合が削減、増大される
位置に、調整通孔を貫設するようにしたことを特徴とす
る緩衝装置。The cylinder has an actuating piston at one end thereof, and
An adjusting piston, which faces the other end provided with the ventilation hole via a first adjustment space and is connected to the other end by a return spring, is closely fitted inside the cylinder so as to be able to move forward and backward. On the peripheral wall, the adjustment piston expands and compresses the return spring by expanding and reducing the pressure of the second adjustment space by rapidly expanding and contracting the operating piston, respectively, thereby reducing the degree of opening. A shock absorbing device characterized in that an adjusting hole is provided through the increasing position.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25518184A JPS61136029A (en) | 1984-12-03 | 1984-12-03 | Damper |
DE19853542700 DE3542700A1 (en) | 1984-12-03 | 1985-12-03 | SHOCK ABSORBER |
US06/804,144 US4776440A (en) | 1984-12-03 | 1985-12-03 | Shock absorber with resiliently biased adjustment piston |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25518184A JPS61136029A (en) | 1984-12-03 | 1984-12-03 | Damper |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61136029A true JPS61136029A (en) | 1986-06-23 |
JPH056044B2 JPH056044B2 (en) | 1993-01-25 |
Family
ID=17275160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP25518184A Granted JPS61136029A (en) | 1984-12-03 | 1984-12-03 | Damper |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61136029A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0258137U (en) * | 1988-10-24 | 1990-04-26 | ||
KR20020040240A (en) * | 2000-11-24 | 2002-05-30 | 밍 루 | Shock absorber |
KR100597721B1 (en) * | 2005-07-04 | 2006-07-07 | 한일이화주식회사 | Air damper |
JP2010025150A (en) * | 2008-07-15 | 2010-02-04 | Honda Motor Co Ltd | Damper device |
CN110439405A (en) * | 2017-09-17 | 2019-11-12 | 曹云霞 | A kind of damper of slide guide device |
CN110439408A (en) * | 2017-09-17 | 2019-11-12 | 曹云霞 | A kind of slide guide device |
-
1984
- 1984-12-03 JP JP25518184A patent/JPS61136029A/en active Granted
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0258137U (en) * | 1988-10-24 | 1990-04-26 | ||
KR20020040240A (en) * | 2000-11-24 | 2002-05-30 | 밍 루 | Shock absorber |
KR100597721B1 (en) * | 2005-07-04 | 2006-07-07 | 한일이화주식회사 | Air damper |
JP2010025150A (en) * | 2008-07-15 | 2010-02-04 | Honda Motor Co Ltd | Damper device |
CN110439405A (en) * | 2017-09-17 | 2019-11-12 | 曹云霞 | A kind of damper of slide guide device |
CN110439408A (en) * | 2017-09-17 | 2019-11-12 | 曹云霞 | A kind of slide guide device |
CN110439410A (en) * | 2017-09-17 | 2019-11-12 | 曹云霞 | A kind of damper of slide guide device |
CN110469224A (en) * | 2017-09-17 | 2019-11-19 | 曹云霞 | A kind of damper of slide guide device |
CN110485843A (en) * | 2017-09-17 | 2019-11-22 | 曹云霞 | A kind of damper of slide guide device |
Also Published As
Publication number | Publication date |
---|---|
JPH056044B2 (en) | 1993-01-25 |
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