JPH03127345U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1a shows a first embodiment of the present invention, and is a schematic side view of the device body with the upper body opened from the first angular position to the maximum second angular position;
Figure b is an explanatory diagram of the action of the center of gravity when the upper body is in the second angular position, Figure 2 a is a configuration diagram of the opening/closing device when the upper body is closed in the first embodiment, and Figure 2 b is an explanatory diagram of the operation of the opening/closing device shown in Fig. 2a, showing a state in which the upper body is opened to the first angular position, and Fig. 2c is an operation explanatory diagram showing a state in which the upper body is opened to the second angular position. The operation explanatory diagram shown in Fig. 3a shows the second embodiment, and the configuration diagram of the opening and closing device when the upper body is closed, Fig. 3b shows the second embodiment.
In the switchgear shown in Figure 3a, the upper body is the first
An explanatory diagram of the operation showing the state in which it is opened to the angular position,
Fig. 3c is an explanatory view of the operation showing the state in which the upper body is opened to the second angular position; Fig. 4 is a cross-sectional view of the rotary one-way oil damper section shown in the embodiment of the present invention; FIG. 5 is a schematic side view showing a conventional example of a printer equipped with an opening/closing function, and FIG. 6 is a schematic side view showing a conventional opening/closing device. 14...Equipment body, 15...Lower fuselage, 15a
...Frame, 15b...Stopper, 15c...
Stopper, 16... Upper fuselage, 17... Fulcrum shaft,
18... Frame, 18a... First protrusion, 18
b...Second protrusion, 19...One-way damper part, 19a...Rotating gear, 20...Transmission gear, 20
a...Large diameter gear, 20b...Small diameter gear, 21...
Rotating member, 21a... Gear part, 21b... Stopper, 22... Spring member, 23... Damper cover,
24... Gear member, 24a... Internal gear part, 25... Rotating member, 25a... Slit, 2
5b...stopper, 26...one-way damper section, 26a...rotating gear,...first angular position,
...Second angular position.

Claims (1)

[Scope of Claim for Utility Model Registration] A fuselage opening/closing device in which the fuselage main body is divided into an upper fuselage and an upper fuselage, and the upper fuselage can be opened and closed from the lower fuselage using one end as a fulcrum, which is formed along an arc centered on the fulcrum. a rotating gear that engages with the gear portion directly or via a transmission gear and is rotatable in conjunction with the opening/closing operation of the upper body, and the rotating gear has a closing operation of the upper body. a one-way damper mechanism having a rotational speed control function in a predetermined rotational direction corresponding to the rotational direction; When the rotation gear is opened to an opening angle of A fuselage opening/closing device comprising: a one-way damper control mechanism that disables the rotational speed control function based on non-rotation of the rotary gear during a closing operation of the upper fuselage.