JPH0289199U - - Google Patents
Info
- Publication number
- JPH0289199U JPH0289199U JP16906788U JP16906788U JPH0289199U JP H0289199 U JPH0289199 U JP H0289199U JP 16906788 U JP16906788 U JP 16906788U JP 16906788 U JP16906788 U JP 16906788U JP H0289199 U JPH0289199 U JP H0289199U
- Authority
- JP
- Japan
- Prior art keywords
- main body
- notch
- protrusion
- pair
- edge
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Ladders (AREA)
Description
第１図は、本考案の構造を示す分解斜視図、第
２図は、本考案の第一操作状態を示す説明図、第
３図は、本考案の第二操作状態を示す説明図、第
４図は、本考案の第三操作状態を示す説明図、第
５図は、本考案の第四操作状態を示す説明図、第
６図は、本考案のトリガが元の位置に戻る状態を
示す説明図、第７図は、本考案のロツク部材が切
込部内に係合する前の状態を示す断面図、第８図
は、本考案のロツク部材が切込部内に係合した後
の状態を示す断面図である。
１０……第一部材、１１……梯子脚接続部、１
２……軸孔、１３……切込部、２０……第二部材
、２１……梯子脚接続部、２２……軸孔、２３…
…円板、２４……スライドスロツト、２７……階
段部、３０……トリガ、３１……柄部、３２……
翼部、３３……前エツジ部、３４……傾斜エツジ
部、３５……後エツジ部、４０……アーチ状シー
ト、４２……貫通孔、５０……ロツク部材、５１
……ロツク部材の前面、５２……突起、５３……
突部、５４……押し棒、５５……コイルスプリン
グ。
FIG. 1 is an exploded perspective view showing the structure of the present invention, FIG. 2 is an explanatory diagram showing the first operating state of the invention, and FIG. 3 is an explanatory diagram showing the second operating state of the invention. 4 is an explanatory diagram showing the third operating state of the present invention, FIG. 5 is an explanatory diagram showing the fourth operating state of the present invention, and FIG. 6 is an explanatory diagram showing the state in which the trigger of the present invention returns to its original position. FIG. 7 is a sectional view showing the state before the locking member of the present invention is engaged in the notch, and FIG. 8 is a sectional view showing the state after the locking member of the present invention is engaged in the notch. It is a sectional view showing a state. 10...First member, 11...Ladder leg connection part, 1
2... Shaft hole, 13... Notch, 20... Second member, 21... Ladder leg connection part, 22... Shaft hole, 23...
... Disk, 24 ... Slide slot, 27 ... Stairs, 30 ... Trigger, 31 ... Handle, 32 ...
Wing part, 33... Front edge part, 34... Inclined edge part, 35... Rear edge part, 40... Arch-shaped sheet, 42... Through hole, 50... Lock member, 51
...Front surface of locking member, 52...Protrusion, 53...
Projection, 54...Push rod, 55...Coil spring.
Claims (1)
材は、中空円盤状本体と該本体の一側に突設した
梯子脚接続部とを有し、第二部材は、一対の平行
した円板からなる本体と該本体の一側に突設した
梯子脚接続部とその本体周縁部に設けた複数個の
切込部とを有し、かつ第一部材と第二部材は、第
一部材が第二部材に内装するように一体に軸着さ
れるように構成した折りたたみ梯子用ジヨイント
であつて、上記第二部材の各円板上には、それぞ
れその梯子脚接続部に近いスライドスロツトが開
けてあり、一対のスライドスロツトが互い対向し
ていると共に、それらの一側の対向した孔縁には
、それぞれ階段部が形成されてあり；この一対の
スライドスロツトの一端の間に、アーチ状シート
が固定されてあり、このシートの内部には、押し
棒がコイルスプリングに包囲されるようにその長
さ方向に弾性的に移動自在に設けてあり；この押
し棒の前端には、一側に上記階段部に軽く係合で
きるようにした突起が設け、他の一側には突部が
設けてあるロツク部材が配置されてあり；上記第
二部材の本体とその梯子脚接続部の連接部分には
、前部付近に上記ロツク部材に当接してそれをコ
イルスプリングの弾性力に抗して後に向つて後退
させ得る前エツジ部、傾斜エツジ部、後エツジ部
とを有するトリガが軸着されてあり；上記折りた
たみ梯子が所定の広げた状態に保持された際、上
記ロツク部材が上記切込部内に進入してそれと係
合してあることにより上記広げた状態を保持する
ことができ、上記広げた状態を変えようとする際
、上記トリガを作動させてその前エツジ部、傾斜
エツジ部と後エツジ部とが上記ロツク部材の突部
と前端面を押すことにより上記ロツク部材を上記
コイルスプリングの弾性力に抗してその突起が上
記階段部に軽く係合するように後退させることに
より上記ロツク部材を切込部から脱出してその前
端面により上記第二部材の周縁に沿つてスライド
させることができると共に、スライドされたロツ
ク部材が次の切込部に達した場合、自然に該切込
部内に進入してそれと係合できるようにしたこと
を特徴とする、上記折りたたみ梯子用ジヨイント
。 It consists of a first member and a second member that are pivoted together, the first member having a hollow disc-shaped main body and a ladder leg connection part protruding from one side of the main body, and the second member having a pair of parallel members. It has a main body made of a disc, a ladder leg connecting part protruding from one side of the main body, and a plurality of notches provided on the peripheral edge of the main body, and the first member and the second member are connected to the first member. A joint for a folding ladder configured such that a member is integrally pivoted so as to be internally attached to a second member, wherein a slide slot is provided on each disk of the second member near the connection portion of the ladder leg. A pair of slide slots are opened, and a pair of slide slots are opposed to each other, and a stepped portion is formed at the opposite edge of the hole on one side; between one end of the pair of slide slots. An arch-shaped seat is fixed to the seat, and a push rod is provided inside the seat so as to be elastically movable in the longitudinal direction so as to be surrounded by a coil spring; The main body of the second member and its ladder leg are provided with a protrusion on one side that can be lightly engaged with the step part, and a lock member with a protrusion on the other side. The connecting portion of the connecting portion has a front edge portion, an inclined edge portion, and a rear edge portion near the front portion that can abut the locking member and cause it to retreat rearward against the elastic force of the coil spring. A trigger is pivoted; when the folding ladder is held in a predetermined unfolded state, the locking member enters into the notch and engages with it, thereby maintaining the unfolded state. When attempting to change the expanded state, the trigger is actuated so that the front edge, inclined edge and rear edge press against the protrusion and front end surface of the lock member, thereby locking the lock member. By retracting the member against the elastic force of the coil spring so that its protrusion lightly engages with the step part, the lock member escapes from the notch and its front end surface touches the periphery of the second member. and when the slid lock member reaches the next notch, it can naturally enter into the notch and engage with it. Joint for folding ladders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16906788U JPH0624560Y2 (en) | 1988-12-27 | 1988-12-27 | Folding ladder joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16906788U JPH0624560Y2 (en) | 1988-12-27 | 1988-12-27 | Folding ladder joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0289199U true JPH0289199U (en) | 1990-07-16 |
| JPH0624560Y2 JPH0624560Y2 (en) | 1994-06-29 |
Family
ID=31458804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16906788U Expired - Lifetime JPH0624560Y2 (en) | 1988-12-27 | 1988-12-27 | Folding ladder joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624560Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538107A (en) * | 2019-01-18 | 2019-03-29 | 安徽冠廷科技有限公司 | Multi-functional folding ladder |
| JP2020112001A (en) * | 2019-01-16 | 2020-07-27 | 特殊梯子製作所有限会社 | Ladder with handrail |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200468863Y1 (en) * | 2012-02-20 | 2013-09-05 | 최인규 | Ladder rollover preventing apparatus |
-
1988
- 1988-12-27 JP JP16906788U patent/JPH0624560Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020112001A (en) * | 2019-01-16 | 2020-07-27 | 特殊梯子製作所有限会社 | Ladder with handrail |
| CN109538107A (en) * | 2019-01-18 | 2019-03-29 | 安徽冠廷科技有限公司 | Multi-functional folding ladder |
| CN109538107B (en) * | 2019-01-18 | 2023-12-29 | 安徽冠廷碳纤维科技股份有限公司 | Multifunctional folding ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0624560Y2 (en) | 1994-06-29 |
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