JP3144310U - Safety cutter - Google Patents

Abstract

A safety cutter is provided.
A safety cutter has a blade piece and a pressure rod that extend and contract in the main body, has an elastic element in the main body, applies elasticity to the pressure rod, and the pressure rod is not subjected to external force action. Extend. When the pressure rod is not in use, it can be retracted into the main body and extended from the main body when necessary.The length is longer than the length of the blade, and when the cut object is cut, The cut object is controlled to prevent the cut object from moving and is cut with a blade. The pressure rod is appropriately expanded and contracted according to the blade piece at any time to avoid the risk of injury when the user's finger is holding the material to be cut.
[Selection] Figure 2

Description

  The present invention relates to a cutter, and more particularly, to a cutter having a design that has an elastic expansion / contraction pressure control rod in front of a blade piece and a blade at the time of cutting, and protects a finger from injury by timely elastic expansion / contraction.

The cutter is used for creation and paper cutting. To prevent the object to be cut from moving during cutting, hold the object with one hand, hold the cutter with the other hand, and cut. When using a scale together, one hand holds the scale and the cutter performs a stable cut along the scale.

An object of the present invention is to provide a cutter that improves that the object to be cut and the hand holding the scale are easily injured when a known cutter is used.

  The cutter of the present invention is a cutter having an expansion / contraction pressure rod, and the pressure rod is positioned in front of the blade piece. When using the cutter, the pressure rod is operated and extended, and the pressure rod is first cut when cutting. After the object is pressed, the blade piece cuts the cut object, and when the user's hand is holding the cut object, the object is protected by a suitable elastic expansion / contraction pressure bar to achieve a safety effect. When the cutter is not used, the blade piece and the pressure rod are retracted into the cutter body, so that storage and carrying are not affected.

  When using a known cutter, it is a cutter that improves the possibility of injury to the object to be cut and the hand holding the scale. When the cutter is not used, the blade and the pressure rod are retracted into the cutter body. It also has the advantage of not affecting storage and carrying.

  FIG. 1, FIG. 2, and FIG. 6 are views showing a preferred embodiment of the safety cutter according to the present invention, which is composed of a main body 1 having the same structure as a general cutter. Two tanks 12 are installed, and a blade piece 13 is mounted in the first tank 11. By installing a button part 131 at an appropriate position of the blade piece 13 and pressing the button part 131, the blade piece 13 can be extended or retracted from the first tank 11. It is the same.

  A feature of the present invention is that the pressure rod 2 is installed for sliding in the second tank 12. The pressure rod 2 extends from one end of the second tank 12 to form a curved head 21. The pressure rod 2 is provided with a U-shaped tank 211 extending toward the head 21 in the direction of the side surface of the blade piece 13, and the other end in the second tank 12 is elastic between the back end of the second tank 12. Element 3 is installed. Elasticity is applied to the pressure control rod 2 by the elastic element 3, and the pressure control rod 2 is automatically repelled from the second tank 12 under a natural state where it is not subjected to external force action. In order for the pressure rod 2 to be retracted to the limit of the second tank 12 and to extend to the limit of the second tank 12 and to be fixed respectively, the present invention is arranged at an appropriate location on the side wall of the pressure rod 2. The cave 22 is installed. A switch 14 and a chain divider 15 that are respectively fitted to the cave 22 are installed at appropriate positions on the side wall adjacent to the second tank 12 of the main body 1. In the embodiment of the present invention, the chain divider 15 is pivoted on the main body 1, and the inner side surface of the chain coupler 15 is provided with a convex column 151 (shown in FIG. 3) to be inserted into the cave 22 to control the chain. When the rod 2 extends to the limit of the second tank 12, the cave 22 corresponds to the position of the convex column 151 of the chain coupler 15. At this time, if the chain divider 15 is actuated in one direction, the convex column 151 is inserted into the cave hole 22 to be fitted and fixed, and the pressure rod 2 is prevented from being retracted into the second tank 12. When the chain coupler 15 is operated in the opposite direction, the convex column 151 is detached from the cave 22 and the pressure rod 2 is elastically stretched. At this time, the pressure rod 2 is applied with pressure, and the second tank 12, when the pressure rod 2 is retracted to the limit of the second tank 12, a fitting structure (not shown) inside the switch 14 fits the cave 22, and the pressure rod 2 is in the second tank 12. When the switch 14 is not pushed again, the fitting of the cave 22 cannot be released, and the elastic force of the elastic element 3 pushes the pressure rod 2.

  4A to 4C are views showing a cutting process by the cutter of the present invention. First, the head 21 of the extended pressure rod 2 controls the surface of the cut object (shown in FIG. 4A), and then the pressure rod. 2 applies pressure to the cut object, suitably retracts the pressure rod 2 into the body (shown in FIG. 4B), increases the pressure on the cut object of the pressure rod 2, moves the cutter and cuts.

  FIGS. 5A to 5C are diagrams showing a process of returning the cutter after completion of cutting. First, the tip of the blade piece 13 leaves the cut material (shown in FIG. 5A), and then the blade piece 13 is moved up. The pressure rod 2 is extended by the action of the elastic element 3, the pressure of the pressure rod received by the cut material is reduced (shown in FIG. 5B), and the head 21 is cut after the pressure rod 2 is fully extended. It does not generate oppression against the object and returns completely (shown in Figure 5C)

  As shown in FIG. 7, when the cutter of the present invention is cut with respect to the cut object 5, the pressure rod 2 is completely extended and fixed by the chain divider 15, and then directly cut. 5 is placed between the blade piece 13 and the pressure rod 2 and is cut by the blade piece 13 and has an appropriate inclination angle A between the blade of the blade piece 13 and the pressure rod 2 so that the cutting of the cut object 5 is easy. is there. A preferable angle of the inclination angle A is 5 to 10 degrees.

  As shown in FIG. 8, in the method in which the cutter of the present invention cuts using the scale 4, the pressure bar 2 controls the cut material, and the blade 13 performs the cutting on the cut material.

It is an external appearance three-dimensional view of the cutter of the present invention. FIG. 4 is a three-dimensional view of an embodiment in which main structural features of the cutter of the present invention and a pressure rod extend to the front end of the main body. FIG. 3 is a three-dimensional view of an embodiment in which the pressure rod in FIG. 2 completely extends from the main body and is fixed. It is a local solid view of the Example which the pressure rod and blade piece of this invention press and cut a cutting thing in order. It is a local solid view of the Example which the pressure rod and blade piece of this invention press and cut a cutting thing in order. It is a local solid view of the Example which the pressure rod and blade piece of this invention press and cut a cutting thing in order. It is the local three-dimensional figure of the Example which the blade piece and pressure rod of this invention return in order. It is the local three-dimensional figure of the Example which the blade piece and pressure rod of this invention return in order. It is the local three-dimensional figure of the Example which the blade piece and pressure rod of this invention return in order. It is the structure three-dimensional view which installed the control rod of this invention in the local part of the main body. It is a three-dimensional view of the Example which uses the cutter of this invention for the cutting of the cut object which hangs directly. It is a three-dimensional view of the Example which uses the cutter of this invention together with a scale, and cuts the cut thing placed on the desk.

Explanation of symbols

Body 1
Pressure rod 2
Elastic element 3
First tank 11
Second tank 12
Blade 13
Switch 14
Chain divider 15
Head 21
Cave 22
Button part 131
Convex column 151
U-shaped tank 211

Claims (3)

A safety cutter,
A main body comprising a first tank and a second tank, and a switch and a chain divider installed on a side wall adjacent to the second tank;
A blade piece that is installed in the first tank of the main body, is combined with a button, extends or retracts from the first tank,
The second tank is installed in the second tank of the main body, and has one end with an elastic element between the second tank and the elastic element to which elastic force is applied and no external force is applied. A pressure rod having a cave that fits into the switch or the chain coupler on the side wall;
A safety cutter characterized by comprising The pressure rod has a curved head at one end extending the second tank, and the pressure rod has a U-shaped tank on one side facing the blade piece, and the pressure rod and the The safety cutter according to claim 1, wherein an appropriate inclination angle is provided between blades of the blade piece. The chain is pivoted on the main body, and has a convex column on the inner surface of the chain, and when the cave of the pressure rod corresponds to the position of the chain, the chain is operated. The safety cutter according to claim 1, wherein the convex column is inserted and fixed into the cave.

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