JPS6219672U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing the state of the toggle mechanism and its operating system when the heat roller and the pressure roller are pressed into contact with each other, which is an embodiment of the fixing device of the present invention, and FIGS. 2 and 3 are conventional 4 is a partial front view showing an embodiment of the fixing device of the present invention, and FIG. 5 is a side view of the fixing device of the present invention, and FIG. 6 is a schematic side view showing the state of the toggle mechanism and its operation system when the pressure roller is separated from the heat roller, and FIG. 7 is a schematic side view showing the state of the toggle mechanism and its operation system when the pressure roller is separated from the heat roller. A schematic side view showing the released state of the latch mechanism when the pusher roller is separated; FIG. 8 is a side view showing another embodiment of the inner frame pair; FIG. 9 is a side view showing another embodiment of the operating lever. It is a side view which shows an example. In the figure, 1... Outer frame pair, 2... Heat roller, 3... Rotating shaft, 4... Pressure roller, 5
... Rotating shaft, 20 ... Window, 21 ... Inner frame pair, 22 ... Roller holding member, 23 ... Rotating shaft, 24 ... Bending lever, 25 ... Elongated hole, 26 ...
... Stopper, 27 ... Long hole, 28, 29 ... Rod, 30, 31, 32 ... Connection shaft, 33 ... Rotating shaft, 34 ... Tension spring, 35 ... Abutment plate,
36...Manual lever, 37...Operation rod, 38...
Latch, 39... Rotating shaft, 40... Locking part, 41
...Torsion spring, 42...Stopper, 43
... window, 44 ... operation axis, 45 ... rod.

Claims (1)

[Scope of utility model registration request] A heat roller is rotatably disposed at a proper position on the upper part of the outer frame pair, and a pressure roller, which is disposed at a proper position on the lower part of the heat roller so that it can be pressed against and separated from the heat roller, and its operating mechanism, etc. are attached to the outer frame pair. an inner frame pair provided so as to be able to move in and out of the inner frame, a roller holding member for attaching both ends of the rotating shaft of the pressure roller to the inner frame pair, and one end of the roller holding member attached to the inner frame pair; A rotation shaft for rotatably attaching to the inner frame pair, and a toggle mechanism for raising and lowering the other end of the roller holding member to press and separate the pressure roller from the heat roller of the outer frame pair; a manual lever rotatably provided at an appropriate position on the paper ejection side of the pair of inner frames;
The manual lever and the toggle mechanism are integrated into one unit using an operating rod inserted between the manual lever and the toggle mechanism, while a penetrating rod is inserted between the manual lever of the unit and the toggle mechanism at a suitable place inside the pair of outer frames. By providing a latch mechanism for locking both ends of the mounted operating rod, the unit equipped with the pressure roller and its operating mechanism can be moved in and out of the pair of outer frames, and the unit can be moved in and out of the pair of outer frames. pressing and separating the pressure roller from the heat roller, and locking both ends of the operating rod to the latch mechanism;
A fixing device for use in an electrophotographic device or the like, characterized in that operations such as release can be performed by operating one of the manual levers.