Pivot hinge for construction tools

Abstract

As shown in the "Reference Front View Showing the Usage State", this article is attached to the upper corner of the door and used in engagement with a support fitting provided laterally at the upper end of the door frame. As shown in the "Plan View", "Reference Plan View 1 When the Hook Portion is Rotated", and "Reference Plan View 2 When the Hook Portion is Rotated", the hook-shaped hook portion is rotatable. With the support fitting accommodated in the central space portion of the hook portion, the door can be supported on the door frame by engaging the hook portion with the support fitting. Normally, the biasing force of the spring provided inside the main body acts on the hook portion, closing the opening of the main body, but it is possible to grip and rotate the knob of the hook portion.

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