Hinge and door device

Abstract

The invention provides a hinge for reliably holding a door open state without requiring additional mounting of a bracket on a frame and a door member. One hinge plate 41 rotatably supports thereon the other hinge plate 43 by a shaft member 42 in an openable and closable manner. A bracket section 77 is formed integrally with the upper edge of an end of the other hinge plate 43, which is located on the side opposite the side on which the shaft member 42 is mounted, and a vertical shaft section 79a of a hold-stay rod 79 is loosely fitted in a shaft hole 78 in the bracket section 77 so as to be pivotable and vertically slidable. A horizontal shaft section 79b of the hold-stay rod 79 is slidably inserted in a guide hole 73H in a guide plate 72 welded to the hinge plate 41, and an locking section 79c is formed by bending at the front end of the hold-stay rod 79. When the other hinge plate 43 is opened, the engaging section 79c is moved from a guide section 76 to a receiving plate section 74 and inserted into an engaging hole 75. The engaging section 79c is removed from the engaging hole 75 by pushing the engaging section up by a finger.

Description

technical field [0001] The present invention relates to a hinge for attaching a door panel main body to a frame, and a door device that can be freely opened and closed by the hinge. Background technique [0002] Figure 31 Shown is a hydraulic excavator 10 as an operating machine, and an upper revolving body 12 is rotatably provided on a lower traveling body 11 , and a driver's cab 13 , a working device 14 , and a power unit 15 such as an engine are attached to the upper revolving body 12 . The power unit 15 is covered by an upper cover 16, a side door 17, and the like. Side door 17 is installed to be able to open and close freely by hinge 18, through Figure 32 to Figure 34 A holding mechanism 19 is shown to hold the side door 17 open. [0003] about the Figure 32 to Figure 34 Shown existing retaining mechanism 19, when closing side door 17, as Figure 33 As shown, the strut (round rod) 19s bent into a U-shape is accommodated across the holes between the brackets 19a a...

AI Technical Summary

Problems solved by technology

[0007] In addition, with regard to the existing holding mechanism 19, when the side door 17 is opened, it should be as follows: Figure 34 As shown, the strut 19s is hooked between the holes of the brackets 19a and 19d in a straddling manner. However, since it is a position alignment operation accompanying the loading and unloading of the strut 19s, it takes a lot of work, and there are still some problems on the construction site. may omit the assignment

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