JPH0527411Y2 - - Google Patents
Info
- Publication number
- JPH0527411Y2 JPH0527411Y2 JP12259089U JP12259089U JPH0527411Y2 JP H0527411 Y2 JPH0527411 Y2 JP H0527411Y2 JP 12259089 U JP12259089 U JP 12259089U JP 12259089 U JP12259089 U JP 12259089U JP H0527411 Y2 JPH0527411 Y2 JP H0527411Y2
- Authority
- JP
- Japan
- Prior art keywords
- cam
- locking pawl
- platform
- locking
- lifting
- 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 - Lifetime
Links
- 230000003028 elevating effect Effects 0.000 claims description 7
- 210000000078 claw Anatomy 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、上昇する昇降台が突出した係止爪を
後退させ上昇完了後に係止爪が昇降台の下方に復
帰するようにした昇降装置に関するもので、吊り
上げ形式の駐車場や倉庫における昇降台の安全装
置として利用される。[Detailed description of the invention] (Field of industrial application) The present invention is an elevating device in which a rising elevating platform retreats a protruding locking pawl so that the locking pawl returns to the bottom of the elevating platform after the lifting is completed. It is used as a safety device for lifting platforms in parking lots and warehouses.
（従来技術とその問題点）
この種の係止爪は、例えば特開昭61−109873号
のように、パレツト（昇降台）が一定の位置まで
上昇した段階でラツチ（係止爪）を突出させた
り、或いは特開昭63−51575号のように、パレツ
トが通過した直後に係合部材（係合爪）が突出す
る構成のものが盛用されている。(Prior art and its problems) This type of locking pawl is disclosed in Japanese Patent Application Laid-Open No. 61-109873, in which the latch (latching pawl) is projected when the pallet (elevating platform) has risen to a certain position. Alternatively, as in Japanese Patent Application Laid-Open No. 63-51575, a structure in which an engaging member (engaging pawl) protrudes immediately after the pallet passes is widely used.
しかしながら、何れの係合装置であつても、係
合爪を前進及び／又は後退させるための駆動機構
が別途に必要となる。そのため、昇降台の昇降と
係止爪の進退とをタイミングよく制御する必要が
あり、この制御機能が損なわれて誤動作をする
と、そのまま昇降台が落下したり、昇降台がの昇
降が不能になつたりする不都合があつた。 However, either type of engagement device requires a separate drive mechanism for moving the engagement claw forward and/or backward. Therefore, it is necessary to control the lifting and lowering of the platform and the advancement and retreat of the locking claw in a timely manner.If this control function is impaired and malfunctions, the platform may fall or become unable to move up and down. There were some inconveniences.
（技術的課題）
本考案は、上昇する昇降台が突出した係止爪を
後退させ上昇完了後に係止爪が昇降台の下方に復
帰するようにした昇降装置において、昇降台の昇
降を利用して係止爪を進退させることを課題とし
たものである。(Technical Problem) The present invention utilizes the lifting and lowering of the lifting platform in a lifting device in which the lifting platform moves back the protruding locking pawl so that the locking pawl returns to the bottom of the lifting platform after the lifting is completed. The problem is to move the locking pawl forward and backward.
（技術的手段）
この技術的課題を解決するための技術的手段
は、
(イ) 係止爪の上方に配置し外方へ付勢させた可動
部材に揺動カムを枢着し、
(ロ) 係止爪にカム下部との係合部を設け、
(ハ) カム先端部の下降時にカムが係合部に係合し
て係止爪を後退させること、
である。(Technical means) The technical means for solving this technical problem are: (a) A swing cam is pivotally attached to a movable member placed above the locking pawl and urged outward; ) The locking pawl is provided with an engaging portion that engages with the lower part of the cam, and (c) the cam engages with the engaging portion when the tip of the cam descends, causing the locking pawl to retreat.
（技術的手段の作用）
係止爪上乃至上方にある昇降台を上昇させる
と、昇降台は係止爪の上方に配置したカムに接す
るが、このカムは外方へ付勢させた可動部材に取
り付けられているために、昇降台が付勢力に抗し
てカムを後退させ、昇降台はカムの上方に達する
ことになる。(Operation of technical means) When the lifting platform located on or above the locking pawl is raised, the lifting platform comes into contact with a cam placed above the locking pawl, but this cam is moved by a movable member that is biased outward. Since the lifting platform is attached to the cam, the lifting platform will move the cam backward against the force, and the lifting platform will reach above the cam.
その状態から昇降台を下降させると、昇降台は
枢着されたカムの先端部に当接してこれを下方に
揺動させる。揺動させられたカムは、下方に位置
する係止爪の係合部内に臨み、そのまま揺動角度
を大きくさせることになる。 When the elevator table is lowered from this state, the elevator table contacts the tip of the pivoted cam and swings it downward. The swung cam faces into the engaging portion of the locking pawl located below, and the swiveling angle is increased as it is.
昇降台の下降と共にカムの揺動角が大きくなつ
てカムは可動部材と共に後退させられ、これに伴
つてカムにおされた係止爪が後退させられること
になる。 As the elevator platform descends, the swing angle of the cam increases, causing the cam to move backward together with the movable member, and in conjunction with this, the locking pawl set on the cam is moved backward.
従つて、昇降台の下降がカムを動作して係止爪
を後退させるため、昇降台の昇降を利用して係止
爪を進退させることが可能となる。 Therefore, since the lowering of the elevator platform operates the cam and causes the locking pawl to retreat, it becomes possible to move the locking pawl forward and backward using the ascent and descent of the elevator platform.
（本考案の効果）
昇降台の昇降を利用して係止爪を進退させられ
る結果、昇降台の昇降を操作するだけで昇降台の
落下防止と係止爪の解除が行えるため、別途に係
止爪を駆動するための装置や制御装置も不要とな
り、昇降機構自体を簡素化できる利点がある。(Effects of the present invention) As a result of the locking pawl being moved forward and backward using the lifting and lowering of the lifting platform, it is possible to prevent the lifting platform from falling and release the locking pawl by simply moving the lifting platform up and down. There is no need for a device or a control device for driving the pawl, and there is an advantage that the elevating mechanism itself can be simplified.
また、昇降台が下降させるべく作動させない限
り昇降台が落下することがなく、従来発生した制
御装置の故障や誤動作に基づく事故を回避できる
利点もある。 In addition, the lifting platform does not fall unless the lifting platform is operated to lower it, which has the advantage of avoiding accidents caused by failures or malfunctions of the control device that have conventionally occurred.
（実施例）
次に、上記技術的手段の具体例について、図面
を参酌しながら説明する。(Example) Next, a specific example of the above technical means will be described with reference to the drawings.
第１図は、本考案に係る安全装置１の要部の一
部を断面で示した拡大図である。 FIG. 1 is an enlarged cross-sectional view of a part of the main parts of a safety device 1 according to the present invention.
係止爪３は、ブラケツト２内に収納してあつ
て、コイルバネ４によつて外方に付勢され、常時
突出状態となつている。係止爪３の先端部下面は
テーパ壁５にしてあり、昇降台２０はこのテーパ
壁５に沿いながら上昇するため、係止爪を後退さ
せることになる（第３図ａ，ｂ参照）。 The locking pawl 3 is housed within the bracket 2, and is urged outward by a coil spring 4, so that it is always in a protruding state. The lower surface of the distal end of the locking pawl 3 is formed into a tapered wall 5, and since the lifting table 20 rises along this tapered wall 5, the locking pawl is moved backward (see FIGS. 3a and 3b).
尚、符号７はバネ４内に臨んだ案内軸である。 Note that the reference numeral 7 is a guide shaft facing into the spring 4.
昇降台２０が係止爪３を越えた段階で、係止爪
３はバネ４の押圧力によつて自動的に復帰し突出
する（第３図ｃ参照）。 When the lifting platform 20 passes over the locking pawl 3, the locking pawl 3 automatically returns to its original position and projects due to the pressing force of the spring 4 (see FIG. 3c).
ブラケツト２内で係止爪３の上方に配置したカ
ム１１は、バネ１２で押圧力を付与された可動部
材としての支持体１３に枢着してある。 A cam 11 disposed above the locking pawl 3 within the bracket 2 is pivotally connected to a support 13 as a movable member to which a pressing force is applied by a spring 12.
この支持体１３には、先端部に段部１４が設け
てあり、後端部をコイルバネ１５によつてブラケ
ツト２内方に引き寄せられたカム１１の背面壁が
段部１４と当接し、カム１１の先端部が係止爪３
と平行になるようにしてある。 This support body 13 is provided with a stepped portion 14 at its tip, and the back wall of the cam 11 whose rear end is drawn inward to the bracket 2 by a coil spring 15 comes into contact with the stepped portion 14, and the cam 11 The tip of the locking claw 3
It is made to be parallel to.
尚、符号１６はブラケツト２の先端部に設けた
ストツパで、カム１１が上向きに回動するのを防
止している。 Incidentally, reference numeral 16 is a stopper provided at the tip of the bracket 2, which prevents the cam 11 from rotating upward.
従つて、上昇する昇降台２０は、カム面１０に
沿つてカム１１を押圧して支持体１３を後退さ
せ、昇降台２０がカム１１上に達した段階でカム
１１が復帰し突出する（第３図ｄ，ｅ参照）。 Therefore, the ascending/descending table 20 presses the cam 11 along the cam surface 10 to move the support body 13 backward, and when the elevating table 20 reaches above the cam 11, the cam 11 returns and protrudes (first step). (See Figure 3 d, e).
次いで、昇降台２０を下降させると、昇降台２
０はカム１１の先端部に当接するが、カムは支持
体１３に枢着されているために下に向かつて回動
する。この時、係止爪３の先端部に係止凹部とし
ての切り欠き部６が形成されているために（第２
図参照）、カム１１の下部が切り欠き部６内に臨
み、昇降台２０の下降と共に係止爪３が押されて
後退することになる（第３図ｆ参照）。 Next, when the elevator platform 20 is lowered, the elevator platform 2
0 comes into contact with the tip of the cam 11, but since the cam is pivoted to the support 13, it rotates downward. At this time, since a notch 6 as a locking recess is formed at the tip of the locking pawl 3 (second
(see figure), the lower part of the cam 11 faces into the notch 6, and as the elevator platform 20 descends, the locking pawl 3 is pushed and retreats (see Figure 3f).
上記実施例では、付勢手段及び引き寄せ手段と
してコイルバネを使用しているが、空気圧を利用
したりゴム等の弾性体を利用するなど、他の公知
の手段を利用することかできる。 In the above embodiment, a coil spring is used as the biasing means and the pulling means, but other known means may be used, such as using air pressure or using an elastic body such as rubber.
また、係止爪の係合部として切り欠き部を形成
した例を示しているが、凹部等、カムが係合でき
る構造であればどのような形態のものであつても
良い。 Further, although an example is shown in which a notch is formed as the engagement part of the locking pawl, it may be of any form, such as a recess, as long as it can be engaged with the cam.
図面は、上記技術的手段の具体例を説明するた
めのもので、第１図は安全装置の要部拡大図、第
２図は係止爪の平面図、第３図は係止爪の作動を
示す工程図である。
１……安全装置、３……係止爪、４，１２，１
５……コイルバネ、５……テーパ壁、６……係合
切り欠き部、１０……カム面、１１……カム、１
３……支持体、１４……段部、１６……ストツ
パ。
The drawings are for explaining specific examples of the above-mentioned technical means. Fig. 1 is an enlarged view of the main parts of the safety device, Fig. 2 is a plan view of the locking pawl, and Fig. 3 is a diagram showing the operation of the locking pawl. FIG. 1... Safety device, 3... Locking claw, 4, 12, 1
5... Coil spring, 5... Tapered wall, 6... Engagement notch, 10... Cam surface, 11... Cam, 1
3... Support body, 14... Step portion, 16... Stopper.
Claims (1)
昇完了後に係止爪が昇降台の下方に復帰するよう
にした昇降装置において、係止爪の上方に配置し
外方へ付勢させた可動部材に揺動カムを枢着し、
係止爪にカム下部との係合部を設け、カム先端部
の下降時にカムが係止部に係合して係止爪を後退
させる安全装置。 In an elevating device in which a lifting platform moves upward by retracting a protruding locking pawl so that the locking pawl returns to the bottom of the platform after the lift is completed, the movable platform is placed above the locking pawl and biased outward. A swing cam is pivotally attached to the member,
A safety device in which the locking pawl is provided with an engaging portion that engages with the lower part of the cam, and when the cam tip descends, the cam engages with the locking portion and the locking pawl retreats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12259089U JPH0527411Y2 (en) | 1989-10-19 | 1989-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12259089U JPH0527411Y2 (en) | 1989-10-19 | 1989-10-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0362076U JPH0362076U (en) | 1991-06-18 |
| JPH0527411Y2 true JPH0527411Y2 (en) | 1993-07-13 |
Family
ID=31670586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12259089U Expired - Lifetime JPH0527411Y2 (en) | 1989-10-19 | 1989-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0527411Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001307168A (en) * | 2000-04-27 | 2001-11-02 | Fujitsu Ltd | Method and device for transaction |
| CN108946358A (en) * | 2017-05-25 | 2018-12-07 | 哈尔滨理工大学 | A kind of bio-mechanism for preventing elevator high level from crashing ----machinery crotch |
-
1989
- 1989-10-19 JP JP12259089U patent/JPH0527411Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0362076U (en) | 1991-06-18 |
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