JPH08126968A - Lead cutter blade gripping device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a lead cutter blade gripping device capable of safely and easily attaching and detaching a blade of a lead cutter. [Structure] A rubber suction cup 1 for adsorbing a lead cutter blade and a hollow handle 2 are airtightly integrated with each other. When the lever 5 provided with the return spring 4 provided on the hand insertion portion 6 of the handle 2 is pulled, the movable stopper 5A that is a part of the lever 5 is pushed up into the handle internal passage 2A, and the inside of the handle generated by this pushing up The check valve 3 in the handle 2 opens due to the air pressure, the air in the handle 2 flows into the suction cup 1,
The suction of the suction cup 1 is released.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead cutter blade gripping device used when attaching and detaching a blade of a lead cutter.

[0002]

2. Description of the Related Art As shown in FIG. 2, a blade 20 of a lead cutter has a disk shape, and has a shaft hole 21 at its center. 20A is the front surface of the blade and 20B is the back surface.

When the blade of the lead cutter is to be detached from the cutter device as needed, for example, by polishing, the leather gloves are put on and detached directly by hand in consideration of safety.

Therefore, there has been a problem that the work time at the time of attachment and detachment is long, and the danger to the human body due to mistaken attachment and detachment is high.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a lead cutter blade gripping device capable of safely and simply attaching and detaching a blade of a lead cutter. It is in.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention integrates a hollow handle with a rubber sucker for sucking a lead cutter blade so as to be airtightly communicated with the inner space of the sucker. A hole is provided in the center of the lower surface of the handle facing the insertion part of the hand for gripping, and a lever with a return spring is provided in the insertion part that can be pulled by the amount of grip force of the handle. A movable plug body as a part is fitted in the hole, while a check valve is provided in the internal passage of the handle, and the check valve pushes up the movable plug body when the lever is pulled. It is set to open by the air pressure inside the handle generated as a result.

[0007]

According to the above construction, when the grip is grasped and the suction cup is pressed against the lead cutter blade, the pressure inside the suction cup is reduced and the lead cutter blade is adsorbed. As a result, the lead cutter blade can be taken out of the lead cutter device without touching it and taken out to the polishing device as it is.

When the lever is pulled while the handle is gripped, the movable stopper is pushed up, and the push-up raises the air pressure in the handle internal space (handle internal passage) to open the check valve, so that the air in the handle internal space is released. It is fed into the internal space of the suction cup and the lead cutter blade comes off. Therefore, a series of work for attaching and detaching the lead cutter blade can be realized quickly and directly without touching it.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG.

FIG. 1A is a sectional view of a lead cutter blade gripping device as an embodiment, and FIG. 1B is a perspective view thereof.

Reference numeral 1 is a bowl-shaped rubber suction cup. Since the lead cutter blade of this suction cup presents a donut-shaped disc as shown in FIG.
An annular inner space 1A for suction is secured between the rubbers.

A plastic U-shaped hollow handle 2 is provided above the suction cup 1, and the handle 2 is integrated with the suction cup 1 so that the internal passage 2A communicates with the suction cup internal space 1A in an airtight manner. It is as a mounting structure. In addition, a hole 7 is provided in the center of the lower surface 2B of the handle 2 facing the hand inserting portion 6 for gripping the handle, and the inserting portion 6 is pulled by the degree of grasping force of the handle 2. A lever 5 with a return spring 4 that can be operated is provided.

The lever 5 is provided with a projection 5A serving as a movable plug body on a part thereof, and the movable plug body 5A is airtightly fitted into the hole 7 on the handle 2 side. The internal passage 2A of the handle 2 is provided with check valves 3 on both sides thereof, and the check valve 3 is
When the lever 5 is pulled, the movable stopper 5A is pushed up and is opened by the air pressure inside the handle.

Next, the attaching / detaching operation of the lead cutter blade using the above gripping device will be described.

When the grip 2 is gripped and the suction cup 1 is pressed against the surface 20A of the lead cutter blade 20 shown in FIG. 2, the suction cup 1 is depressurized and the lead cutter blade 20 is adsorbed. At this time, the check valve 3 is in a closed state. As a result, the lead cutter blade 20 can be taken out of the lead cutter device (not shown) without touching it, and can be taken out to the polishing device as it is.

When the lever 5 is pulled while the handle 2 is held, the movable stopper 5A is pushed up, and the air pressure in the handle internal space 2A is increased by this pushing up, the check valve 3 is opened, and the air in the handle internal space 2A is opened. Is the inner space 1A of the suction cup 1
Sent to. As a result, the lead cutter blade 20 comes off the suction cup 1. Therefore, a series of work for attaching and detaching the lead cutter blade can be realized quickly and directly without touching it.

[0017]

As described above, according to the present invention, a series of work for attaching and detaching the lead cutter blade can be quickly and directly touched by the lever operation of the suction cup and the handle provided on the suction cup. Therefore, a simple and safe lead cutter gripping device can be provided. Further, the structure of the gripping device is simple and lightweight, which is convenient for handling.

[Brief description of drawings]

FIG. 1A is a longitudinal sectional view according to an embodiment of the present invention,
(B) is the perspective view.

2A is a plan view of a lead cutter blade, and FIG. 2B is a vertical cross-sectional view thereof.

[Explanation of symbols]

 1 Sucker 1A Sucker internal space 2 Handle 2A Handle internal passage 3 Check valve 4 Return spring 5 Lever 5A Movable plug 7 hole

Claims (2)

[Claims] 1. A rubber suction cup for adsorbing a lead cutter blade is airtightly integrated with a suction cup inner space to be integrated with a hollow suction cup, and a central bottom surface of the handle facing the insertion part for holding the handle. In addition to providing a hole, a lever with a return spring is provided in the insertion part that can be pulled by the amount of grip force of the handle, and a movable stopper that is a part of this lever is fitted into the hole. A check valve is provided in an internal passage of the handle, and the check valve is set so as to be opened by air pressure inside the handle generated when the movable stopper is pushed up when the lever is pulled. A lead cutter blade gripping device characterized by the above. 2. The rubber suction cup has a double rubber arrangement to secure an internal space for suction between the rubbers, and the internal space and the inside of the handle communicate with each other through the check valve. A lead cutter blade gripping device characterized by being made.