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KR-20260063956-A - Safety Knife Structure

KR20260063956AKR 20260063956 AKR20260063956 AKR 20260063956AKR-20260063956-A

Abstract

The present invention relates to a safety knife structure. Specifically, the blade is configured to be housed inside the body, but the blade is exposed with elasticity upon the user's pressing operation, thereby enabling safe use of the knife by controlling the exposure and non-exposure of the blade with simple operation. Furthermore, through holding operation, the blade can also be used in a fixed state, and Furthermore, the invention relates to a safety knife structure that enables safer knife use by controlling the frictional force from the bottom of the safety knife structure to prevent it from slipping easily.

Inventors

  • 이인혜

Assignees

  • 이인혜

Dates

Publication Date
20260507
Application Date
20241031

Claims (5)

  1. Cover (10) and; A body (30) in which a pressing body (31) is exposed on one side of the cover (10), the rest is received inside the cover (10), and a blade (35) is attached to the lower side; A button (20) that rotates to be operable on one side of the above cover (10); An elastic body (40) that enables elastic movement in a body (30) coupled to the above cover (10); A lower body (50) coupled to the lower side of the body (30) to cause the body (30) to be spaced apart from the floor at a certain distance; A safety knife structure characterized by including a regulator (60) that is fitted onto the outer surface of the lower body (50) and moves up or down.
  2. In claim 1, The above cover (10) is, In the form of a case with an open bottom surface, a portion of the top surface is opened to form an open area (11), and a button coupling surface (12) to which a button is coupled is formed on one side. A safety knife structure characterized by including: a shaft hole (13) communicating the inside and outside of the cover (10) in the button coupling surface (12); and an elongated hole (14) formed on the lower side of the shaft hole (13).
  3. In claim 2, The button (20) is, A coupling shaft (21) inserted into a shaft hole (13); and a device that rotates around the coupling shaft (21) as an axis. A safety knife structure characterized by including at least two grooves (22, 23) on the other side of the surface where the coupling shaft (21) of the above button (20) is formed.
  4. In claim 3, The body (30) is a structure that is accommodated in the internal space of the cover (10), A pressing body (31) that leaks to the outside of the cover (10) through the open area (11) of the cover (10) on the upper side; An insertion groove (32) formed to correspond to the position of the elongated hole (14) on one side of the body (30); A guide groove (33) formed to correspond to the position of the shaft hole (13) and extended to have a predetermined height in the upper/lower direction; It includes a shaft (34) inserted into the insertion groove (32); and a blade (35) coupled to the lower surface of the body (30). The above shaft (34) is, With the other end inserted into the insertion groove (32), it passes through the elongated hole (14) of the cover (10) and is positioned to come into contact with the rear surface of the button (20). By selectively inserting into the grooves (22, 23) according to the operation of the above button (20), Fixed at the upper side of the slot (14) to control the descent of the blade (35), or A safety knife structure characterized by being fixed at the lower side of the slot (14) and controlling the rise of the blade (35).
  5. In claim 1, By imparting elasticity to the rising and falling of the body (30) by the above elastic body (40), When the above-mentioned pressing body (31) is pressed, the body (30) descends, and when the pressure is removed, the body (30) automatically ascends. The above elastic body (40) is, For a rod portion (41) having a predetermined length, a screw thread (42) is formed on the upper outer surface of the rod portion (41), and an elastic portion (43) is connected to the lower end. The above elastic part (43) provides elasticity to the rod part (41) through a spring, and A safety knife structure characterized in that the rod portion (41) of the above elastic body (40) penetrates through the through hole (36) of the body (30) and is coupled to one side of the cover (10).

Description

Safety Knife Structure The present invention relates to a safety knife structure. Specifically, the blade is configured to be housed inside the body, but the blade is exposed with elasticity upon the user's pressing operation, thereby enabling safe use of the knife by controlling the exposure and non-exposure of the blade with simple operation. Furthermore, through holding operation, the blade can also be used in a fixed state, and Furthermore, the invention relates to a safety knife structure that enables safer knife use by controlling the frictional force from the bottom of the safety knife structure to prevent it from slipping easily. There is a utility knife that students mainly use as school supplies. Generally, a cutter knife includes a main body having a guide rail with a plurality of protrusions formed in the longitudinal direction, a stopper that moves along the guide rail, and a cutter with one end connected to the stopper and the other end protruding toward the exit side of the main body. In this cutter knife, the cutter is extended from the main body as the stopper is moved along the guide rail in the direction of travel. When in use, the cutter is extended from the main body, and when not in use, the cutter is retracted into the main body. However, with such a cutter knife, the blade is exposed to the outside, and during the cutting process, the cutter may deviate from the intended cutting area due to carelessness, potentially causing injury to the hand. In addition, there was a problem in that there was a high possibility of injury from the cutter even in the case of young children's mistakes or minor pranks. In particular, when removing a dull blade using a cutter knife cap, there was a risk that the detached blade would fly off and cause injury to the human body. Furthermore, the detached blade fell to the floor, making it difficult to find, and the detached blade was very thin and small, making it very difficult to pick up by hand. There was also a persistent risk that if the detached blade could not be found and was left unattended, safety accidents such as foot injuries would occur later. In order to solve this problem, Utility Model Registration No. 0354396, "Cutter knife equipped with a waste blade collection container," discloses a cutter blade structured such that a waste blade collection container is provided inside the cap to collect and dispose of waste blades all at once, but solving the problem of separated blades does not make the use of the knife safe for students. In addition, Utility Model Registration No. 0419152, "Cutter Blade Cutting Machine," discloses a cutting machine having a structure equipped with a fixing button supported by a spring on a cap so that the cutter blade can be cut safely after being fixed so that it does not move. However, there was a problem in that when cutting a dull blade, the fixing button protruding from the cap had to be pressed hard by hand, causing pain in the fingers. Accordingly, recently, safety-conscious cutter knives have been developed to overcome the aforementioned problems; however, since they are configured in a way that makes cutter replacement impossible, their range of use has inevitably been limited depending on the application. FIG. 1 is an exploded perspective view showing a safety knife structure according to the present invention. Figure 2 shows the rear side of the button of the safety knife structure according to the present invention. FIG. 3 shows an example in which the cover and body of a safety knife structure according to the present invention are combined. Figure 4 shows an example of the connection of the body of a safety knife structure according to the present invention. FIG. 5 shows an example in which a button and a regulator of a safety knife structure according to the present invention are combined. FIG. 6 shows an example of the operation of a regulator of a safety knife structure according to the present invention. Terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention. Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application. Before proceeding with the following description with reference to the drawings, it should be noted that matters not necessary to reveal the gist of the invention, namely known configurations that a person skilled in the art with ordinary knowledge c