JPH0716762U - cutter - Google Patents

Abstract

(57) [Summary] [Purpose] In the cutter blade insertable type cutter,
Improve safety during use by making simple improvements. [Structure] A cutter blade 1, a frame body 2 for holding the cutter blade 1 in a retractable manner, and a frame body 2 connected to the cutter blade 1.
In a cutter having a movable operation part 3 for engaging and disengaging the cutter blade 1 for moving in and out, a support member 4 engaged with the frame body 2 so as to be relatively movable in the moving direction of the movable operation part 3. A cutter provided with fixing means 6 for fixing the support member 4 to the frame body 2, and connecting the movable operation unit 3 and the support member 4 with an elastic member 10 having a restoring force.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a cutter, such as a folding blade type cutter, which involves taking in and out the cutter blade when it is used.

[0002]

[Prior art]

 As represented by a folding blade type cutter, a cutter that involves the operation of inserting and removing the cutter blade during use is widely known. It is used in various industrial fields, for example, in the work of cutting an object, for example, for sampling to measure the characteristics of a product.

A conventional cutter of this kind is constructed, for example, as shown in FIG. In the figure, 31 indicates a cutter blade held in a frame 32 so as to be slidable in and out. The cutter blade 31 is connected to a movable operation member 33, and the movable operation member 33 is slid in an arrow direction. Thus, the tip end side is taken in and out. Reference numeral 34 denotes a positioning / fixing portion 34 for temporarily stopping and fixing the movable operation member 33. The movable operation member 33 is locked at any position of the positioning / fixing portion 34. The blade edge of the cutter blade 31 is projected from the desired amount frame 32 and is fixed at that position.

[0004]

[Problems to be solved by the device]

 However, in the conventional cutter as described above, the tip end side of the cutter blade 31 is often left out of the frame body 32 even when the cutter blade 31 is not actually used for cutting while using the cutter. However, there is a risk that the cutter blade 31 may be touched by hand and an unexpected situation may occur. In addition, once the tip side of the cutter blade 31 is removed from the frame 32, the cutter blade 31 remains fixed at that position, but during work involving the use of a cutter, for example, when the operator is conscious of cutting work. If moved to other than, there is a possibility that the blade edge of the cutter blade 31 is temporarily forgotten. In such a case, the above-mentioned unexpected situation is likely to occur.

The present invention focuses on such a problem, and aims to greatly improve the safety in use by making a simple improvement in a cutter blade insertion / retraction type cutter that is widely used. To aim.

Another object of the present invention is to secure the safety in the above-mentioned use, and at the same time, to easily and without waste and inconvenience of the cutter blade over its entire usable range. It is about being able to use up.

[0007]

[Means for Solving the Problems]

 A cutter of the present invention for this purpose inserts and removes a cutter blade, a frame body that holds the cutter blade so that the cutter blade can be taken in and out, and a cutter blade that is connected to the cutter blade and is movably engaged with the frame body. In a cutter provided with a movable operation section for moving the movable operation section to the frame body at a position opposite to the cutter blade with respect to the movable operation section, the frame can be relatively moved in the movable operation section moving direction. In addition to providing a supporting member to be engaged, a fixing means for fixing the supporting member to the frame body is provided, and the movable operating portion and the supporting member are connected by an elastic member having a restoring force. It consists of

[0008]

[Action]

 In such a cutter, by moving the movable operation part to the support member side when using the cutter, the blade edge of the cutter blade is easily pushed out of the frame body, but the movable operation part and the support member provide a restoring force. Since the elastic members are connected to each other, once the force applied to the movable operating portion is released, the cutting edge of the cutter blade is automatically returned to the inside of the frame by the restoring force of the elastic member. Therefore, it is possible to reliably prevent an unexpected situation that would occur if you accidentally touch the cutter while the cutter blade is still exposed. Also, in order to keep the cutter blade out for use, it is necessary to hold the movable operation part with your finger, which increases the awareness that the cutter is in use.

Further, the support member is movable in the moving direction of the movable operation portion, and is fixed to the frame body by the fixing means after being moved to a substantially arbitrary position. Therefore, when the length of the folding blade type cutter blade becomes shorter, the position of the support member can be moved to a position closer to the blade protruding side. When the cutter blade becomes short, the operating position of the movable operating part for ejecting the cutting edge comes to the position on the protruding side of the frame body from the blade tip side, but by changing the position of the supporting member, the movable operating part and the supporting member The relative positional relationship with, that is, the expansion margin of the elastic member does not have to be substantially changed. As a result, the cutter blade can be used up to its root easily, and at the same time, stable operation of the movable operation section and the telescopic member can be obtained at all times.

[0010]

【Example】

 Hereinafter, preferred embodiments of the cutter of the present invention will be described with reference to the drawings. 1 and 2 show the configuration of a cutter according to an embodiment of the present invention. In the figure, 1 indicates a cutter blade which is held in the frame body 2 so as to be slidable in and out, and 3 is provided in the frame body 2 so as to be movable relative to the frame body 2 (slideable). The dynamic operation part (movable operation member) is shown. The cutter blade 1 is connected to the movable operating member 3 via the connecting portion 5, and the tip end portion is taken in and out by moving the movable operating member 3 in the arrow direction.

Reference numeral 4 denotes a support member that is movably engaged with the frame body 2 in the moving direction of the movable operation member 3. A butterfly screw 6 as a fixing means for fixing the support member 4 to the frame body 2 is attached to the support member 4. The support member 4 is moved in the direction of the arrow along the frame 2 and then fixed in position by the thumbscrew 6. As the fixing means, a bolt, a round screw or the like may be used instead of the thumbscrew. The movable operating part 3 and the supporting member 4 are connected by a tension spring 10 as an elastic member having a restoring force.

FIG. 3 shows a structure of a cutter according to another embodiment of the present invention. In the figure, 13 denotes a convex portion provided on the support member 4, 14 denotes a convex portion 14 provided on the movable operation member 3, and the convex portions 13 and 14 are elastic members having a restoring force. A body 11 (for example, a rubber body) is wound around, and the movable operation member 3 and the support member 4 are connected to each other similarly to the cutter of FIG. Further, the supporting member 4 is provided with a thumbscrew 6 as a fixing means.

In the cutter configured as described above, when the movable operating member 3 is applied with force from the fingertip toward the opposite side of the supporting member 4 during use, the blade tip of the cutter blade 1 is outside the frame body 2. The desired amount is delivered. At this time, the tension spring 10 that connects the movable operation member 3 and the support member 4 is stretched.

When the force applied to the movable operation member 3 is released by releasing the cutter from the hand or releasing the finger from the movable operation member 3 at the end of work or at the time of interruption, the tension spring 10 is released. Due to the restoring force, the movable operating member 3 is pulled back to the support member 4 side. With this operation, the cutter blade 1 connected to the movable operation member 3 is automatically housed in the frame body 2.

Therefore, if the hand or finger is separated from the cutter after using the cutter, the cutter blade 1 is automatically stored in the frame body 2, and an unexpected situation occurs when the cutter blade that has been left untouched is touched by the hand. It is prevented and work safety is secured.

Further, in order to hold the cutter blade 1 in the extended state, it is necessary to hold the movable operating member 3 with a finger, and by keeping this operating state, the operator is currently using the cutter. It is possible to give a consciousness that it is, and safety is further improved from this aspect as well.

When the length of the folding blade type cutter blade 1 is shortened, the position of the support member 4 is moved in the blade protruding direction as shown in FIG. This operation can be easily performed by temporarily loosening the thumbscrew 6, moving the support member 4 by a desired amount, and then tightening the thumbscrew 6 again.

By moving the support member 4 in this way, even when the cutter blade 1 becomes short, the relative positional relationship between the support member 4 and the movable operation member 3, the free length of the spring 10, the cutter blade 1 It is possible to keep the expansion and contraction allowance at the time of taking in and out the same as that at the time of the operation shown in FIG.

Therefore, the cutter blade 1 can be easily used up to the root portion (root portion of the usable range), and the cutter blade insertion / removal operation allowance can be made substantially constant, so that stable operation can be achieved.

Further, as shown in FIG. 3, even if the elastic body 11 is used for the elastic member having a restoring force, the same effect as described above can be obtained by the same action.

[0021]

[Effect of device]

 As described above, in the cutter of the present invention, the movable operation member and the support member are connected by the elastic member having a restoring force, and the fixing position of the supporting member can be appropriately changed. The cutter blade can be automatically stored in the frame to greatly improve the safety during use, and the cutter blade can be used up easily over the entire usable range. The blade insertion / extraction operation can be stabilized.

[Brief description of drawings]

FIG. 1 is a plan view of a cutter according to an embodiment of the present invention.

FIG. 2 is a plan view showing another usage state of the cutter shown in FIG.

FIG. 3 is a plan view of a cutter according to another embodiment of the present invention.

FIG. 4 is a plan view of a conventional cutter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cutter blade 2 Frame body 3 Movable operation member 4 Support member 5 Connecting portion 6 Fixing means 10 Tension spring 11 Elastic body 13,14 Convex portion

Claims (3)

[Scope of utility model registration request] 1. A cutter blade, a frame body for holding the cutter blade so as to be able to be taken in and out, and a movable operation section for taking in and out the cutter blade that is connected to the cutter blade and engages with the frame body so as to be relatively movable. In a cutter with and
A supporting member that engages with the frame body so as to be relatively movable in the moving direction of the movable operation portion is provided at a position of the frame body on the side opposite to the cutter blade with respect to the movable operation portion. A cutter, characterized in that a fixing means for fixing the same is provided, and the movable operating portion and the supporting member are connected by an elastic member having a restoring force. 2. The cutter according to claim 1, wherein the elastic member comprises a tension spring. 3. The elastic member is formed of an elastic material.
Cutter.