JPH0337149U

JPH0337149U -

Info

Publication number: JPH0337149U
Application number: JP9887389U
Authority: JP
Priority date: 1989-08-24
Filing date: 1989-08-24
Publication date: 1991-04-10
Anticipated expiration: 2004-08-24
Also published as: JPH072885Y2

Description

[Brief explanation of drawings]

第１図及び第２図は本考案にかかるロツク装置
を適用した昇降装置の断面図であつて、第１図は
昇降台が降下した状態を示し、第２図は昇降台が
上昇した状態を示している。また第３図は本考案
にかかるロツク装置の一例を示す要部の断面図、
第４図はその平面図、第５図はロツク装置の解除
途中の状態を示す要部の断面図、第６図はその概
略平面図、第７図は本考案にかかるロツク装置を
適用した昇降装置の概略斜視図である。１……ベース部材、１０……ロアレール、２…
…昇降台、２０……アツパレール、３ａ……第１
アーム、３ｂ……第２アーム、５……ロツクレバ
ー、６……ロツクピン、７……ロツク解除機構。 1 and 2 are cross-sectional views of a lifting device to which the locking device according to the present invention is applied, in which FIG. 1 shows the lifting platform in a lowered state, and FIG. 2 shows the lifting platform in a raised state. It shows. FIG. 3 is a sectional view of essential parts showing an example of a locking device according to the present invention;
Fig. 4 is a plan view thereof, Fig. 5 is a cross-sectional view of the main part showing the state in which the locking device is in the process of being released, Fig. 6 is a schematic plan view thereof, and Fig. 7 is a lift using the locking device according to the present invention. FIG. 2 is a schematic perspective view of the device. 1...Base member, 10...Lower rail, 2...
... Lifting platform, 20... Atsupararu, 3a... 1st
Arm, 3b...second arm, 5...lock lever, 6...lock pin, 7...lock release mechanism.

Claims

[Scope of utility model registration request]

A first arm and a second arm are pivotally connected in a crosswise manner, one longitudinal end of the first arm is attached to a lifting platform provided with an upper rail, and one longitudinal end of the second arm is provided with a lower rail. Each of the arms is pivotally connected to the base member, and the other end of the first arm in the length direction is movably connected to the lower rail, and the other end of the second arm in the length direction is movably connected to the upper rail. In the elevating device that raises and lowers the elevating platform with respect to the base member by swinging, a lock lever is pivotally attached to both longitudinal ends of at least one of the arms, and the length of the arm provided with the lock lever is A lock pin is provided on the rail to which the other end in the widthwise direction is movably connected, the lock pin engages with the lock lever to lock the lifting platform in the raised position, and the lifting platform is further moved relative to the raised position. The lock lever is disengaged from the lock pin when ascending from the ascending position to the maximum ascending position, and the movement trajectory of the lock lever when descending from the maximal ascending position avoids the lock pin. 1. A locking device for an elevating and lowering device, characterized in that the locking device is provided with a lock release mechanism for changing the locus of the locking lever and releasing the engagement of the locking lever with the locking pin.