JPH0179045U

JPH0179045U -

Info

Publication number: JPH0179045U
Application number: JP1987175455U
Authority: JP
Priority date: 1987-11-16
Filing date: 1987-11-16
Publication date: 1989-05-26

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例としての上部ユニツ
トロツク機構の斜視図、第２図ａ〜ｃはそれぞれ
上部ユニツトロツク機構を表すとともに、その動
作を説明するための側面図、第３図は上記上部ユ
ニツトロツク機構が具備された画像形成装置の該
略図である。３……上部ユニツト、４……下部ユニツト、８
……ダンパー、３０……上部ユニツトロツク機構
、３２……フツク爪、３６……ロツク解除規制部
、３６ａ……ロツク爪、４０……操作部、５２…
…係止部。 FIG. 1 is a perspective view of an upper unit lock mechanism as an embodiment of the present invention, FIGS. 2 a to c are side views showing the upper unit lock mechanism and explain its operation, and FIG. 1 is a schematic diagram of an image forming apparatus equipped with a unit lock mechanism. 3... Upper unit, 4... Lower unit, 8
...Damper, 30...Upper unit lock mechanism, 32...Hook pawl, 36...Lock release regulation section, 36a...Lock pawl, 40...Operation section, 52...
...Latching part.

Claims

[Claims for Utility Model Registration] 1. A clamshell type image forming apparatus in which an upper unit is rotatably connected to a predetermined portion of a lower unit, and the upper unit is biased in the opening direction by a spring member. In the upper unit lock mechanism, which removably locks the locking member provided on the other unit with respect to the locking portion provided on one unit, the locking member is engaged with a predetermined portion of the locking member. A lock release regulating part for regulating the movement of the locking member in the unlocking direction, and a lock release regulating part provided approximately in the center of the rotation tip side of the upper unit to prevent the movement of the locking member by the lock release regulating part. An operation section for releasing the lock, which is linked to the operation of the operation section, holds the locking member in the unlocked state when the upper unit is opened, and connects the locking member to the locking section when the upper unit is closed. 1. An upper unit locking mechanism for a clamshell type image forming apparatus, comprising a locking member holding means that is engageably released. 2. The locking member is composed of two hook claws fixed to a rotation shaft provided on the upper unit,
The locking part is constituted by an engagement hole in which each of the hook claws can be respectively locked, the lock release regulating part is removably abutted against an engagement plate integrally attached to the rotation shaft, and the operation part is configured to be able to release the restriction on the movement of the locking member by the lock release regulating section and push down the upper unit by pressing downward, and the locking member holding means moves the hook claw in the release direction. Claim 1 of the above-mentioned utility model registration claim comprising a lock pawl that engages with the engagement plate when rotated, and a spring member that elastically biases the engagement member in the engagement direction with respect to the engagement portion. Upper unit lock mechanism of clamshell type image forming device.