JP4242103B2 - Safety fence - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bag that is safe to handle, and more particularly, to a bag that is optimal for school children.
[0002]
[Prior art]
Conventionally, there has been a spear that prevents the blade from opening when not in use. For example, the safety rod described in Japanese Utility Model Registration No. 3067697 has a slight gap between both handles, and the leading end side portion and the proximal end side portion of the handle alternately inward and outward with the stop shaft as a fulcrum. When the blade body is closed with the blade body closed, pressing the side surface of the tip of the blade body inward prevents the blade body from moving open by overlapping the blade tip portion with the overlapping portion. By pushing the side surface of the end portion inward, the overlapped state of the tip side portion of the blade portion is canceled and the blade body can be opened.
[0003]
That is, as described in the detailed description of the invention disclosed in the official gazette, the inner surface of the handle is not brought into close contact, and a slight gap is provided between the two. By providing this gap, the tip end side part and the base end side part of the handle can be displaced inward and outward alternately like a seesaw with the support shaft as a fulcrum, and the tips of both blade parts are closed when the blade part is closed. It is intended to prevent the blade portion from opening by overlapping.
[0004]
Furthermore, as shown in the above publication, the scissors with the blade edges facing each other adhere to the leading surface of the blade that faces the direction of travel when the blade is closed when the adhesive tape is cut. To do. At this time, when the leading surface of the blade is wide as in the above publication, the cut piece of the adhesive tape adheres to the leading surface entirely.
[0005]
[Problems to be solved by the invention]
A normal scissors performs a cutting action while being pressed so that a pair of blades cross and press each other. The force with which the blade is pressed is called blade pressure. In order to apply blade pressure, there is a gap between both blades in the support shaft, and a contact point is provided on the blade portion behind the support shaft, and the contact force is pressed by the contact force between the two contact points. Give. Therefore, although the tip of the blade is given a force to move toward the other blade, the tip of the blade is not touched even if both handles are pushed inward to release the tip of the blade. Will not leave.
[0006]
It is natural that the tip of the blade does not leave even if both patterns are pushed inward, and if the tip of the blade is separated, the intersecting blade will be separated while being pressed during cutting. is there. It is well known that the blades can be broken when the intersecting blades are separated during cutting, and that the object cannot be cut when the blades are broken.
[0007]
In the utility model gazette described as a conventional example, the handle is usually in a parallel posture, a gap is provided between both handles, and the blade part passes by the opening and closing operation of the blade body, so that paper etc. It can be cut. In other words, there are no touch points on this bag. Therefore, it is obvious that the blade will be twisted when cutting thick paper or the like. Further, the means for preventing the blade body from opening has a configuration in which the tip side portions of the blade portion are simply overlapped with each other. Therefore, there is a possibility that the blade body may be opened only by applying a slight force to the blade tip or the base end portion of the handle. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a kite that can reliably prevent the blade from opening and is extremely safe for use by school children. It is another object of the present invention to provide a ridge that can easily cut thick paper or the like.
[0008]
Further, as described above, when the leading surface of the blade is wide as in the above publication, the cut piece adheres to the leading surface entirely when the adhesive tape is cut. Therefore, when a schoolchild tries to peel off the cut piece, it cannot be easily peeled off, and the work is performed close to the edge of the blade, which may damage the skin. Further, it is often experienced that only a part of the cut piece is peeled off during the peeling and the remaining cut piece remains attached to the leading surface. In such a case, it is more difficult to peel off the remaining cut pieces, which increases the risk for school children. Therefore, in the embodiment of the present invention , a wrinkle that can easily peel off the cut piece from the leading surface when cutting the adhesive tape and that is not dangerous when cutting the adhesive tape has been disclosed .
[0009]
[Means for Solving the Problems]
According to a first aspect of the present invention, a pair of slimming members each having a blade body mounting substrate are coupled by a support shaft, and a blade portion is constituted by the substrate and the blade body mounted on the substrate. The blade can be freely opened and closed by rotating around the support shaft, and the blades are attached to the substrate so that the blade edges of both blades face inward, and both blade edges cooperate. In the scissors that work to make a cutting action, a triangular locking part is formed by bending the corners of both blade edge tips so as to incline toward the back of each blade part, and the blade part is closed When the edge of the edge of the blade body where the blade edges are facing each other is removed, the finger-addressed surface for applying force in the direction in which the locking portions overlap is located at the tip of both substrates against the substrate The locking part overlaps with the locking part and enters the locked state, and the blade part opens. It is configured to regulation.
[0010]
When the cutting piece of the adhesive tape cut | disconnected in the case of cut | disconnecting an adhesive tape adheres to the leading surface at least one of the leading surface of the board | substrate which has faced the advancing direction when closing both blade parts, An element provided with means for facilitating the peeling of the cut piece is added to claim 1 .
[0011]
A third aspect of the present invention is a configuration in which an element for facilitating the peeling of the cut piece of the adhesive tape is added to the second aspect, wherein the adhesive surface area of the tape on the leading surface is substantially reduced .
[0012]
According to a fourth aspect of the present invention, an element in which the means for facilitating peeling of the cut piece of the adhesive tape is a protrusion provided side by side in the length direction of the leading surface is added to the third aspect .
[0013]
According to a fifth aspect of the present invention, an element in which the means for facilitating the peeling of the cut piece of the adhesive tape is a wave-shaped unevenness provided side by side in the length direction of the leading surface is added to the fourth aspect .
[0014]
【The invention's effect】
The present invention is configured as described above, and in claim 1, a triangular locking portion is formed by bending a corner portion of both blade edge tips so as to incline toward the back of each blade portion, When the blade part is closed, the facing parts of the blade edges facing each other at the edge of the blade body are removed from each other, and the finger contact surface for applying force in the direction in which the locking parts overlap is the tip of both boards Are provided obliquely with respect to the substrate, and the locking portions are overlapped to be locked and the blade portion is prevented from being opened . Therefore, it is possible to provide a safe scissors that reliably prevents the blade portion from opening when an impact or some force is applied to the scissors. Since the latching portion can be provided only by bending the blade portion without requiring any special parts, it is easy to manufacture and costs little. Moreover, since the operation | work which removes the facing state of blade edge parts and the operation | work which superimposes a latching | locking part can be performed continuously with a finger | toe addressing | attaching a finger | toe to a finger address surface, handling is easy. In addition, since the finger-addressed surface is provided at the tip of the substrate, it is possible to perform superposition work with a slight force, so that a user without physical strength such as a schoolchild can easily use .
[0015]
When the cutting piece of the adhesive tape cut | disconnected in the case of cut | disconnecting an adhesive tape adheres to the leading surface at least one of the leading surface of the board | substrate which has faced the advancing direction when closing both blade parts, In this configuration, means for facilitating peeling of the cut piece is provided . Therefore, the adhesive tape can be easily cut and the cut piece adhering to the leading surface can be easily removed, so there is no risk of taking the pain near the blade edge, especially when the cut piece is short. Safe when cutting short.
[0016]
According to a third aspect of the present invention, the means for facilitating peeling of the cut piece of the adhesive tape substantially reduces the adhesive area of the tape on the leading surface. According to a fourth aspect of the present invention, the means for facilitating the peeling of the cut piece of the adhesive tape is a protrusion provided side by side in the length direction of the leading surface. According to a fifth aspect of the present invention, the means for facilitating the peeling of the cut piece of the adhesive tape is wavy unevenness provided side by side in the length direction of the leading surface. Therefore, means for facilitating peeling of the cut piece of the adhesive tape can be provided at low cost.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. The scissors have a pair of slimmings 1 and 2 coupled around a support shaft 3, and the blades 4 and 5 can be freely opened and closed. The blade portions 4 and 5 have a configuration in which L-shaped metal blade bodies 8 and 9 are attached to substrates 6 and 7 integral with the slimming body. The blade edge portions 10 and 11 of the blade body are not sharp but are formed in a flat shape as shown in the drawing and bent inward. The two blade edge portions 10 and 11 contact each other at their intersecting positions and rub against each other to make a cutting action.
[0018]
The front end portions of the blade edge portions 10 and 11 are formed with locking portions 14 and 15 by bending the corners so as to incline toward the back portions 12 and 13 of the blade portion. Therefore, the shape of the locking portions 14 and 15 is a triangle.
[0019]
The substrates 6 and 7 are integrally formed with the plastic slimmings 1 and 2, and are formed by integrally attaching the blade bodies 8 and 9 at the time of molding. Finger facing surfaces 16 and 17 are provided along the backs 12 and 13 at the tips of the substrates 6 and 7. The finger-facing surfaces 16 and 17 are provided obliquely with respect to the substrates 6 and 7 in order to remove the facing state of the blade edge portions 10 and 11 and apply a force in the direction in which the locking portions 14 and 15 are overlapped. ing. The finger facing surfaces 16 and 17 may be planar or concave.
[0020]
FIG. 4 shows a cross-section at each position of A, B, and C in FIG. 3 during use. Since the planar blade edge portions 10 and 11 facing each other rub against each other to form a cutting action, both the blade edge portions 10 and 11 are in the same plane at each position. FIG. 5 shows cross-sections at positions A, B, and C in FIG. 3 when the locking portions 14 and 15 are overlapped to be locked after use. FIG. 5A is a cross-section at the position A, and the bent locking portions 14 and 15 are overlapped to be locked and the blade portion is prevented from opening. (B) is a cross section at the position B, and the blade edge portions 10 and 11 slightly bite into the other blade portion. As understood from this, the locking portions 14 and 15 overlap each other because the blade portions 4 and 5 are bent inward by its own elasticity.
[0021]
FIG. 6 illustrates an operation for putting the locking portions 14 and 15 into the locked state. As shown in the drawing, when the blades 4 and 5 are closed and then the finger-facing surfaces 16 and 17 are pushed with the fingertips, the blade edge portions 10 and 11 facing each other are displaced from each other and the superposed state is released. When pressed further, the blade parts 4 and 5 move so as to approach each other, and the locking parts 14 and 15 are overlapped to be in a locked state as shown in FIG. As a result, since the blade portions 4 and 5 are locked in a closed state, the blade portions do not open even if a slight force or impact is applied to the blade portions 4 and 5, which is safe. Since the finger-addressed surfaces 16 and 17 are formed so as to be inclined with respect to the blade portions 4 and 5, once the finger is addressed to the finger-addressed surfaces 16 and 17, the fingers are locked without being replaced. be able to. As shown in FIG. 5 (b), the blade edge portions 10 and 11 are bitten by the other edge portion of the blade edge portions 10 and 11 when the blade portions 4 and 5 are in the locked state. .
[0022]
FIG. 7 illustrates an operation for releasing the locking of the blade parts 4 and 5 in the locked state. As shown in the drawing, when the inner surfaces of the blade portions 4 and 5 in the locked state are pushed outward with fingers, the overlapping locking portions 14 and 15 are displaced so as to be separated from each other, so that the locked state is released. Can do. As a result, the bag can be put into use.
[0023]
Protrusions 20 and 21 are integrally provided on the leading surfaces 18 and 19 of the blade portion that faces the traveling direction when both blade portions are closed, that is, on the surface opposite to the back 12 and 13 of the blade portion. Since the protrusions 20 and 21 are for substantially reducing the adhesive area of the tape on the leading surfaces 18 and 19, any configuration may be used as long as the same effect can be obtained. For example, as shown in FIG.
[0024]
When the adhesive tape is cut with the scissors provided with the protrusions 20 and 21 or the projections and depressions 22 on the leading surfaces 18 and 19, the cut pieces do not adhere to the leading surfaces 18 and 19 and can be easily peeled off. . Even if there are no protrusions, anyone can easily peel off the adhesive tape when the cut piece is long, but when the cut piece is short, it is very difficult to remove it, which is dangerous for school children. . However, since the cut pieces can be easily peeled off by providing the protrusions or the like, the operation of cutting the adhesive tape can be performed safely. Since the blade edge portions 10 and 11 extend over almost the entire length of the blade portions 4 and 5, it is possible to cut a wide adhesive tape. In this case, too, the adhesive tape attached to the leading surface is cut. The piece can be easily peeled off.
[Brief description of the drawings]
1 is a perspective view of the tip of the blade Figure 2 is a front view of a front view of the tip of the blade the present invention; FIG 4 (a) before the locked state of the locking portion 3 a-a cross-sectional end view of, (b) is the section B-B end view, (c) the section C-C end view in FIG. 5 (a) is 3 after the locked state of the locking portion FIG. 6B is an end view of the AA cross section, FIG. 6B is an end view of the BB cross section, and FIG. 6C is an end view of the CC cross section . FIG. 7 is an explanatory view showing the direction of force for releasing the locking state of the locking portion. FIG. 8 is a perspective view showing an example of means for facilitating the peeling of the cut piece of the adhesive tape. Explanation】
DESCRIPTION OF SYMBOLS 1 Slimming 2 Slimming 3 Support shaft 4 Blade part 5 Blade part 6 Board | substrate 7 Board | substrate 8 Blade body 9 Blade body 10 Blade edge part 11 Blade edge part 12 Blade part back 13 Blade part back 14 Locking part 15 Locking Part 16 Fingered part 17 Fingered part 18 Leading surface 19 Leading surface 20 Protrusion 21 Protrusion 22 Wavy unevenness

Claims (5)

A pair of slimming bodies having a substrate for attaching a blade body are coupled by a support shaft, and a blade portion is constituted by the substrate and the blade body attached to the substrate, and the slimming body rotates around the support shaft. The blades can be opened and closed freely, and the blades are attached to the substrate so that the blade edges of both blades face inward, and both blade edges cooperate to perform the cutting action. In this case, a triangular locking portion is formed by bending the corners of both blade edge tips so as to incline toward the back of each blade portion, and when the blade portion is closed, the blade at the tip of the blade body Remove the facing state of the part where the edges are facing each other, and a finger-addressed surface for applying force in the direction in which the locking part overlaps is provided at the tip of both boards diagonally with respect to the board. characterized by regulating the opening a blade unit section is overlapped becomes locked state Safety scissors to. When the cut piece of the adhesive tape cut in the case of cutting the adhesive tape is attached to the leading surface on at least one of the leading surfaces of the substrate facing the traveling direction when closing both the blades, the cutting piece 2. A safety rod according to claim 1, wherein means for facilitating peeling is provided. 3. The safety device according to claim 2, wherein the means for facilitating peeling of the cut piece of the adhesive tape is configured to substantially reduce the adhesive area of the tape on the leading surface. 4. The safety rod according to claim 3, wherein the means for facilitating the peeling of the cut piece of the adhesive tape is a protrusion provided side by side in the length direction of the leading surface. The safety device according to claim 4, wherein the means for facilitating peeling of the cut piece of the adhesive tape is a wavy unevenness provided side by side in the length direction of the leading surface.

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