JPH0451877Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The present invention is a paper shredding device that has a switch that turns the shredding mechanism on and off when paper is input. , Reverse command is easy.
This invention relates to a device that can perform the process reliably.

``Prior Art'' Conventionally, a technology has been proposed for a paper shredding device in which forward and reverse rotation is commanded by a single switch button, such as in U.S. Pat.
This includes parts such as lock claws for forward rotation, and parts such as locking claws for reverse rotation.
Each member, such as a butting rubber, is provided with its own dedicated mechanism.

``Problems to be solved by the invention'' Conventionally, the structure described above has led to uncertainties in operation and increased costs due to the large number of parts.

"Means for Solving the Problem" The paper shredding device of the present invention has a switch cover pivotably supported between the forward rotation side switch position and the reverse rotation switch position, and the switch cover is pivotally supported between the forward rotation side switch position and the reverse rotation switch position. includes a first recess for maintaining a forward rotation command, and a first recess provided at a lower portion on a surface integral with the first recess that acts to release the forward rotation command when reverse rotation is commanded. a slope of the ampullae that is higher than a slope of the recess;
A second recess is provided between the first recess and the enlarged portion below the first recess, and is set continuously from the enlarged portion for maintaining a standby state in which neither normal rotation nor reverse rotation is activated. In addition, the bottom of the switch mechanism section has the first recess for maintaining the forward rotation command, the second recess for maintaining the standby state, and the enlarged portion for canceling the forward rotation command. The elastic body is provided with a biasing portion having a bent tip for positioning and biasing the cam portion provided with the cam portion.

``Operation'' Therefore, the operation command for the paper thin sectioning device can be executed with a structure that has a small number of parts and more reliably than conventional devices.

"Embodiment" Below, an embodiment of a switch body of a paper shredding device (not shown) will be described in detail.

In FIG. 3, this device has a shredding mechanism (not shown) installed inside the main body, in which paper (not shown) is inserted into a paper input slot 2 provided on the front side of the main body cover 1. shredded by
The shredded paper is sent out from an outlet 3. The operating command for this device is given by a switch body 25 located on the rear right side to perform forward or reverse rotation.

FIG. 1 is a sectional view of FIG. 4, in which an oval-shaped space for a switch mechanism 25 is provided in the main body cover 1.

As shown in FIG. 4, the bottom portion 9 is provided with two receiving portions 10 at the front and rear for receiving the guide shaft 11 (FIG. 1) at the center thereof. On the left front side, a normal rotation limit switch 5 housed in a holding part 12 and a clamping piece 13 is provided. Similarly, on the right rear side, there is provided a reverse limit switch 6 housed in a holding part 12 and a clamping piece 13. Also, on the left rear side, a cam portion 1 provided on the switch cover 4 is provided.
An elastic body 22 for positioning by biasing the elastic body 22 protrudes from the window 26 and is fixed with a screw 23 as desired into the switch mechanism.

The switch cover 4 has an approximately oval shape on the top and has a thick wall portion 14 on the top surface. A guide shaft 11 is provided in the center so as to rest on a receiving part 10 rising from the bottom part 9, and supports the switch cover 4 so as to balance the left and right sides. . On the rear left side of the switch cover 4, a cam portion 17 is provided integrally with the switch cover 4 and has a frame 16 in the center and has a substantially H-shaped cross section. Furthermore, protrusions 15a and 15b integral with the thick portion 14 are provided at positions corresponding to the passive portion 7 of the forward limit switch 5 and the passive portion 8 of the reverse limit switch 6, respectively.

Here, the forward rotation and reverse rotation operation commands will be described.

FIG. 5-A shows the standby state. The cam portion 17 provided on the switch cover 4 is provided with a first recess 18 , a second recess 19 and an enlarged portion 20 . In the standby state, the biasing portion 24 of the elastic body 22 for biasing is engaged with the second recess 19 . In this state, neither the forward nor reverse limit switches 5, 6 are operated. When issuing a forward rotation command, as shown in Fig. 5-C, when the left side of the switch cover 4 is lightly pressed, the biasing part 24 of the elastic body 22 crosses over from the second recess 19 to the first recess 18. , and is locked in that position. At this time, the protrusion 15a provided on the switch cover 4 holds the driven portion 7 of the forward rotation limit switch 5 in a depressed state.

It should be noted that the right side of the switch cover 4 rises upward with the guide shaft 11 as a fulcrum and does not operate the reverse limit switch 6. The above first recess 1
By locking the elastic body 22 to the paper shredding mechanism 8, the paper shredding mechanism is held in a normal rotation command state.

In the case of a reverse rotation command, the state is shown in Fig. 5-B.
When the right side of the switch cover 4 is pushed down, the left side rises. At this time, the biasing part 24 of the elastic body 22 rides on the slope 21 of the enlarged part 20 that swells further outward than the slopes 27 and 28 of the first recess 18 and the second recess 19, and the biasing part 24 of the elastic body 22 rides on the slope 21 of the enlarged part 20, which swells further outward than the slopes 27 and 28 of the first recess 18 and the second recess 19. A great urging force is exerted. When the push-down is released, the switch cover 4 returns to its equilibrium state (FIG. 5-A) due to the repulsive force of the elastic body 22. When the right side is being pushed down, the protrusion 15b provided on the switch cover 4 is pushing down the passive part 8 of the reverse limit switch 6, and only when the switch cover 4 is being pushed down.
A reverse command is issued.

As mentioned above, when forward rotation is commanded, by lightly pressing the left side of the switch cover 4, the elastic body 22
It is easily locked in the first recess 18 and released from that state by lightly pressing down on the opposite side (right side) to return to the standby state in which the elastic body 22 is released. When paper becomes jammed in the shredding mechanism or other trouble occurs, a reverse rotation command is issued by simply pressing down on the right side of the switch cover 4. At this time, as mentioned above, the biasing part 24 of the elastic body 22 rides on the slope 21 of the enlarged part 20, so compared to when commanding normal rotation,
It is not locked in the pressed down state and must be kept pressed down with great force. When the push-down is released, the repulsive force quickly returns to the standby state.

One embodiment of the present invention has been described above, but
It is not limited to this.

"Effect of the invention" According to the paper shredding device according to the invention, there is a member that positions and holds the switch cover in the standby state, a member that urges the switch cover to return to the standby state during a reverse rotation command, and a member that biases the switch cover to return to the standby state during a reverse rotation command. The elastic body is made of a single common member, and the structure is simple and inexpensive, and the operation can be performed reliably.

In addition, the device for the switch mechanism has a simple structure consisting of only a cam part integrated with the switch cover and an elastic body, which simplifies operation and can reliably issue forward and reverse rotation commands, and the device is inexpensive to provide. It is something that can be done.

[Brief explanation of the drawing]

Each drawing is an embodiment of the present invention. 1st
The figure is a sectional view of Fig. 4, and Fig. 2 is a sectional view of Fig. 4.
It is a sectional view of the figure. FIG. 3 is also an external view of the present invention. FIG. 4 shows the switch mechanism on the right rear side of the main body cover, and is a plan view with the switch cover removed. Fig. 5 is an enlarged view showing the relationship between the cam part provided on the left side of the switch cover and the elastic body, in which Fig. A is the standby state, Fig. B is the state when the reverse rotation is commanded, and Fig. C is the state when the forward rotation is commanded. It is in a state of 1...Body cover, 2...Paper input slot, 4...
Switch cover, 5...Forward rotation limit switch, 6...Reverse rotation limit switch, 15a, 1
5b... Protrusion, 17... Cam part, 18... First recessed part, 19... Second recessed part, 20... Ampulla, 21...
...Slope, 22...Elastic body.

Claims (1)

[Claims for Utility Model Registration] A paper shredding mechanism for shredding paper input from the paper input port 1 is separately provided at the bottom 9 of the switch mechanism 25 to command forward and reverse rotation. In a paper shredding device equipped with switches 5 and 6 and a single switch cover 4 that operates the switches 5 and 6, the switch cover 4 is oscillated between a forward rotation side switch position and a reverse rotation side switch position. In addition to being freely pivoted, the lower portion on the forward rotation switch side includes a first recess for maintaining the forward rotation command, and the first recess that acts to cancel the forward rotation command when the reverse rotation is commanded. and the slope 27 of the first recess provided at the lower part of the integral surface.
The enlarged part 20 is located between the slope 21 of the enlarged part 20 which is higher than the first recess and the enlarged part 20 located below the first recess and is maintained in a standby state in which neither forward rotation nor reverse rotation is applied. The cam part 17 is provided with a second recess 19 that is set more continuously, and the bottom part 9 of the switch mechanism part 25 is provided with the first recess 18 that maintains the forward rotation command and the cam part 17 that maintains the normal rotation command and the cam part 17 that maintains the normal rotation command. An elastic body 22 is provided with a biasing part 24 with a bent tip for positioning and biasing the second recessed part 19 and the cam part 17 provided with the enlarged part 20 for canceling the normal rotation command. A paper shredding device that is characterized by being able to provide forward rotation and reverse rotation commands.