JPH0442312Y2 - - Google Patents
Info
- Publication number
- JPH0442312Y2 JPH0442312Y2 JP1986147807U JP14780786U JPH0442312Y2 JP H0442312 Y2 JPH0442312 Y2 JP H0442312Y2 JP 1986147807 U JP1986147807 U JP 1986147807U JP 14780786 U JP14780786 U JP 14780786U JP H0442312 Y2 JPH0442312 Y2 JP H0442312Y2
- Authority
- JP
- Japan
- Prior art keywords
- sliding member
- pair
- surface pressure
- frame members
- tightening
- 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
Landscapes
- Vibration Dampers (AREA)
- Warehouses Or Storage Devices (AREA)
- Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、緩衝装置に関するもので、詳しく
は、自動倉庫や配送センタなどの物流システムお
よび生産ラインや走行型クレーンにおいて、有軌
道台車またはクレーン用のエンドバンパなどに利
用されるものである。[Detailed description of the invention] Industrial application field The present invention relates to a shock absorber. Specifically, it is used in logistics systems such as automated warehouses and distribution centers, production lines, and traveling cranes. It is used for end bumpers, etc.
従来の技術
従来のこの種の緩衝装置、とくに、非常用緩衝
装置は、たとえば、第４図または第５図に示すよ
うなものが知られている。すなわち、第４図に示
すものは、走行用レール２１の端部に上方に凸出
したストツパ２２を設け、該走行用レール２１に
沿つて走行する車輪２３を有する台車２４の前端
部に、非常用緩衝装置としてのゴムまたはスプリ
ング２５を設けている。または第５図に示すもの
は、台車２４の前端部に、非常用緩衝装置として
の油圧式シヨツクアブソーバ２６を設けている。2. Description of the Related Art Conventional shock absorbers of this type, particularly emergency shock absorbers, are known, for example, as shown in FIG. 4 or FIG. 5. That is, in the one shown in FIG. 4, a stopper 22 protruding upward is provided at the end of a running rail 21, and an emergency stopper is provided at the front end of a truck 24 having wheels 23 that run along the running rail 21. A rubber or spring 25 is provided as a shock absorbing device. Alternatively, in the one shown in FIG. 5, a hydraulic shock absorber 26 is provided at the front end of the truck 24 as an emergency shock absorber.
考案が解決しようとする問題点
前述のように、第４図に示したものは、非常用
緩衝装置がゴムまたはスプリング２５からなるの
で、ストロークが短く、全エネルギーを吸収する
ことができなく、かつ、作用力が大きくなり、台
車２４やストツパ２２に無理な荷重がかかるう
え、エネルギーの大半がゴムまたはスプリング２
５内に貯えられて反発するという問題点がある。
また第５図に示したものは、非常用緩衝装置が油
圧式シヨツクアブソーバ２６からなるので、スト
ロークが長くなつて配置しにくく、構造が複雑で
あつて非常に高価なものとなり、かつ、メインテ
ナンスにも多くの費用がかかるという問題点があ
る。本考案は、このような問題点を解決すること
を目的とするものである。Problems to be Solved by the Invention As mentioned above, the emergency shock absorber shown in FIG. , the acting force becomes large and an unreasonable load is applied to the trolley 24 and the stopper 22, and most of the energy is absorbed by the rubber or spring 2.
There is a problem that it is stored in the 5 and rebounds.
Furthermore, in the case of the emergency shock absorber shown in FIG. 5, which consists of a hydraulic shock absorber 26, the stroke becomes long and it is difficult to arrange the shock absorber, and the structure is complicated and very expensive. The problem is that it also costs a lot of money. The present invention aims to solve these problems.
問題点を解決するための手段
上記目的を達成するために、本考案の緩衝装置
は、摺動部材と、この摺動部材を規定の面圧力で
摺動可能にサンドイツチ状に挾み込んだ１対のフ
レーム部材と、該１対のフレーム部材に設けられ
て該摺動部材の摺動時に前記規定の面圧力が発生
するように該１対のフレームの間を締付けている
多数の締付けボルトと、該摺動部材の上下にそれ
ぞれ設けられて前記各締付けボルトを貫通させて
いるスペーサとからなり、かつ、該スペーサが前
記摺動部材より面側にそれぞれ適量寸法だけ小さ
くしたものからなつていて、この適量寸法が０に
なるように前記各締付けボルトによつて締め込ま
れて、前記規定の面圧力が得られているものとし
た。Means for Solving the Problems In order to achieve the above object, the shock absorbing device of the present invention includes a sliding member and a sandwich member sandwiched between the sliding member in a sandwich shape so as to be able to slide with a specified surface pressure. a pair of frame members; and a number of tightening bolts provided on the pair of frame members and tightened between the pair of frames so as to generate the specified surface pressure when the sliding member slides. , and spacers provided on the upper and lower sides of the sliding member so as to allow each of the tightening bolts to pass therethrough, and each of the spacers is made smaller by an appropriate amount on the surface side than the sliding member. It is assumed that the above-mentioned tightening bolts are tightened so that this appropriate amount dimension becomes 0, and the above-mentioned specified surface pressure is obtained.
作 用
摺動部材と１対のフレーム部材との間に規定の
面圧力が発生するようにスペーサを介在させて締
付けボルトを締付ける。そして、１対のフレーム
部材が地上などの固定側に設けられているとき
は、台車などの走行体が走行して摺動部材に衝突
する。また１対のフレーム部材が台車などの走行
体側に設けられているときは、走行体が走行して
摺動部材が固定側に設けられたストツパに衝突す
る。すると、いずれの場合も、摺動部材が１対の
フレーム部材に対して相対的に摺動する。このと
き、走行体が有していた運動エネルギーが、１対
のフレーム部材と摺動部材の間の面圧力による摩
擦力と摺動距離の積に比例した摩擦熱エネルギー
に変換され、前記運動エネルギーが摩擦熱エネル
ギーと等しくなつた摺動距離で、走行体は停止す
る。その後、摩擦熱エネルギーは大気に放散され
る。Operation: Tighten the tightening bolt with a spacer interposed so that a specified surface pressure is generated between the sliding member and the pair of frame members. When the pair of frame members is provided on a fixed side such as on the ground, a traveling body such as a truck runs and collides with the sliding member. Further, when the pair of frame members is provided on the side of a traveling body such as a truck, the traveling body travels and the sliding member collides with a stopper provided on the fixed side. Then, in either case, the sliding member slides relative to the pair of frame members. At this time, the kinetic energy that the traveling body had is converted into frictional thermal energy proportional to the product of the frictional force due to the surface pressure between the pair of frame members and the sliding member and the sliding distance, and the kinetic energy is The traveling body stops at the sliding distance when becomes equal to the frictional heat energy. The frictional thermal energy is then dissipated into the atmosphere.
実施例
第１図ないし第３図は本考案の一実施例を示し
ている。Embodiment FIGS. 1 to 3 show an embodiment of the present invention.
第１図ないし第３図において、１は第１フレー
ム部材、２は第２フレーム部材、３は前記第１フ
レーム部材１と第２フレーム部材２を地上に固定
したアンカーボルト、４は前記第１フレーム部材
１と第２フレーム部材２の間に設けられて摺動可
能にサンドイツチ状に挾み込まれた摺動部材、５
は前記第１フレーム部材１と第２フレーム部材２
にまたげて設けられて摺動部材４の摺動時に規定
の面圧力Ｐが発生するように両フレーム部材１と
２の間を締付ける多数の締付けボルト、６は前記
摺動部材４の上下にそれぞれ設けられたスペー
サ、７は台車、８はその車輪、９は走行用レール
である。 1 to 3, 1 is a first frame member, 2 is a second frame member, 3 is an anchor bolt that fixes the first frame member 1 and the second frame member 2 to the ground, and 4 is the first frame member. A sliding member 5 provided between the frame member 1 and the second frame member 2 and slidably inserted in the shape of a sandwich
are the first frame member 1 and the second frame member 2
A large number of tightening bolts 6 are provided on the upper and lower sides of the sliding member 4 and tighten between both frame members 1 and 2 so that a specified surface pressure P is generated when the sliding member 4 slides. The respective spacers are provided, 7 is a truck, 8 is its wheel, and 9 is a running rail.
第１図ないし第３図に示すように構成された緩
衝装置においては、台車７はＷの重量で、Ｖの速
度で、緩衝装置の摺動部材４に衝突するとすれ
ば、台車７がもつている運動エネルギーEKCは、
EEC＝Ｗ・V2／２ｇ ……(1)
ただし、上記(1)式中のｇは重力加速度である。 In the shock absorber configured as shown in FIGS. 1 to 3, if the truck 7 collides with the sliding member 4 of the shock absorber with a weight of W and a speed of V, the truck 7 will be The kinetic energy E KC is E EC =W·V 2 /2g (1) where g in the above equation (1) is the gravitational acceleration.
またスペーサ６の寸法は、第３図にみられるよ
うに、摺動部材４より両側にそれぞれ適量寸法δ
だけ小さくし、このδが０になるように各締付け
ボルト５を締め込めば、両側にそれぞれ規定の面
圧力Ｐが得られるように設計されているので、各
締付けボルト５により、その面圧力Ｐを発生する
まで締め付ける。 In addition, the spacer 6 has an appropriate size δ on both sides of the sliding member 4, as shown in FIG.
The design is such that by tightening each tightening bolt 5 so that δ becomes 0, a specified surface pressure P can be obtained on both sides. Tighten until it occurs.
ここで、摺動部材４と第１フレーム１および第
２フレーム２の間のそれぞれの動摩擦係数をとも
にμdとすると、摺動部材４が摺動するときの所要
力Ｆは、２面すべりであるため、
Ｆ＝2μd・Ｐ ……(2)
となり、したがつて、台車７が衝突し、摺動部材
４が第１図にみられる摺動距離Ｓ（Ｓ≦ｌ）だけ
摺動して台車７が停止するとすれば、そのときの
吸収エネルギーESBは、
ESB＝2μd・Ｐ・Ｓ ……(3)
となる。したがつて、上記(1)式と(3)式を等しいと
して、上記(3)式の摺動距離Ｓを求めると、
Ｓ＝Ｗ・V2／４ｇ・μd・Ｐ ……(4)
となる。したがつて、上記(4)式のμd、Ｐ、Ｓをパ
ラメータとし、種々の適当な緩衝装置を設計する
ことができる。 Here, if the coefficients of dynamic friction between the sliding member 4 and the first frame 1 and the second frame 2 are both μ d , the required force F when the sliding member 4 slides is a two-sided slip. Therefore, F=2μ d・P ...(2) Therefore, when the truck 7 collides, the sliding member 4 slides by the sliding distance S (S≦l) shown in Fig. 1. If the truck 7 stops at this time, the absorbed energy E SB at that time is E SB =2μ d・P・S (3). Therefore, assuming that equations (1) and (3) above are equal, and calculating the sliding distance S in equation (3) above, S=W・V 2 /4g・μ d・P ...(4) becomes. Therefore, various suitable shock absorbers can be designed by using μ d , P, and S in the above equation (4) as parameters.
なお第１図にみられるアンカーボルト３には、
上記(2)式の力が引抜き力として働くので、この力
に十分耐える強度にしなければならない。またこ
の力によるずれ止めも必要となる。 The anchor bolt 3 shown in Figure 1 has
Since the force in equation (2) above acts as a pulling force, it must be strong enough to withstand this force. It is also necessary to use this force to prevent slippage.
考案の効果
本考案は、摺動部材をサンドイツチ状に挾み込
んだ１対のフレーム部材と、該１対のフレーム部
材に設けられて該摺動部材の摺動時に規定の面圧
力が発生するように該１対のフレームの間を締付
ける多数の締付けボルトとからなるので、構造が
簡単であつて小型となり、メインテナンスも殆ん
どその必要がなく、かつ、高エネルギーを吸収す
るとともに、その吸収エネルギーを貯えないで熱
に交換してしまうから、反発生がなく、安全であ
り、しかも、その吸収エネルギーの調整が締付け
ボルトの締付けトルクで加減でき、非常用として
好適なものである。Effects of the invention The present invention consists of a pair of frame members in which a sliding member is sandwiched in a sanderch-like manner, and a device provided on the pair of frame members to generate a specified surface pressure when the sliding member slides. As it consists of a large number of tightening bolts that tighten between the pair of frames, the structure is simple and compact, requires almost no maintenance, and absorbs high energy. Since energy is exchanged into heat without being stored, there is no reaction and it is safe.Moreover, the absorbed energy can be adjusted by adjusting the tightening torque of the tightening bolt, making it suitable for emergency use.
とくに、本考案では、該摺動部材の上下にそれ
ぞれ設けられて前記各締付けボルトを貫通させて
いるスペーサを有し、かつ、該スペーサが前記摺
動部材より両側にそれぞれ適量寸法だけ小さくし
たものからなつていて、この適量寸法が０になる
ように前記各締付けボルトにによつて締め込まれ
て、前記規定の面圧力が得られるようにしている
ので、前記面圧力の値がその寸法の大小によつて
決定されることになり、したがつて、規定の面圧
力を正確に得られるようにすることの設計が、き
わめて容易となる。 In particular, in the present invention, spacers are provided above and below the sliding member and pass through each of the tightening bolts, and the spacers are made smaller on both sides by an appropriate amount than the sliding member. The bolts are tightened so that the appropriate dimension becomes 0, and the prescribed surface pressure is obtained, so that the value of the surface pressure is equal to that dimension. It is determined by the size, and therefore it is extremely easy to design a way to accurately obtain a specified surface pressure.
第１図は本考案の一実施例を示した側面図、第
２図は第１図の緩衝装置の部分の平面図、第３図
は第２図の正面図、第４図は従来の技術の１つの
例を示した側面図、第５図は同じくもう１つの例
を示した側面図である。
１……第１フレーム部材、２……第２フレーム
部材、４……摺動部材、５……締付けボルト、６
……スペーサ。
Fig. 1 is a side view showing an embodiment of the present invention, Fig. 2 is a plan view of the shock absorbing device shown in Fig. 1, Fig. 3 is a front view of Fig. 2, and Fig. 4 is a conventional technique. FIG. 5 is a side view showing another example. DESCRIPTION OF SYMBOLS 1...First frame member, 2...Second frame member, 4...Sliding member, 5...Tightening bolt, 6
……Spacer.
Claims (1)
動可能にサンドイツチ状に挾み込んだ１対のフレ
ーム部材と、該１対のフレーム部材に設けられて
該摺動部材の摺動時に前記規定の面圧力が発生す
るように該１対のフレームの間を締付けている多
数の締付けボルトと、該摺動部材の上下にそれぞ
れ設けられて前記各締付けボルトを貫通させてい
るスペーサとからなり、かつ、該スペーサが前記
摺動部材より面側にそれぞれ適量寸法だけ小さく
したものからなつていて、この適量寸法が０にな
るように前記各締付けボルトによつて締め込まれ
て、前記規定の面圧力が得られていることを特徴
とする、緩衝装置。 a sliding member, a pair of frame members sandwiching the sliding member in a sandwich shape so as to be able to slide with a specified surface pressure; and a frame member provided on the pair of frame members to allow the sliding member to slide. a large number of tightening bolts tightening the space between the pair of frames so as to generate the specified surface pressure at the same time; and spacers provided above and below the sliding member and passing through each of the tightening bolts. , and the spacer is made of a spacer having an appropriate dimension smaller on the surface side than the sliding member, and is tightened by each of the tightening bolts so that the appropriate dimension becomes 0, A shock absorber characterized in that a specified surface pressure is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986147807U JPH0442312Y2 (en) | 1986-09-29 | 1986-09-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986147807U JPH0442312Y2 (en) | 1986-09-29 | 1986-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6356176U JPS6356176U (en) | 1988-04-14 |
| JPH0442312Y2 true JPH0442312Y2 (en) | 1992-10-06 |
Family
ID=31061511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986147807U Expired JPH0442312Y2 (en) | 1986-09-29 | 1986-09-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442312Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555314A (en) * | 2017-08-24 | 2018-01-09 | 芜湖市长江起重设备制造有限公司 | A kind of dolly limit damper of bridge crane |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5057716B2 (en) * | 2006-07-31 | 2012-10-24 | 日本輸送機株式会社 | End-of-orbit buffer structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5342243Y2 (en) * | 1973-06-02 | 1978-10-12 | ||
| JPS57165676U (en) * | 1981-04-13 | 1982-10-19 |
-
1986
- 1986-09-29 JP JP1986147807U patent/JPH0442312Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555314A (en) * | 2017-08-24 | 2018-01-09 | 芜湖市长江起重设备制造有限公司 | A kind of dolly limit damper of bridge crane |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6356176U (en) | 1988-04-14 |
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