JP2012245019A - Scissors permitting separation of handle portion from blade portion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide scissors capable of easily and firmly connecting or linking a handle portion to a blade portion in a clean and smooth state without projections in the periphery of the connected or linked part, capable of easily separating the handle portion from the blade portion, and capable of being easily manufactured.SOLUTION: Engagement recess and projection 12 are formed on a side surface of each proximal end part 11, and a screw hole 13 to which a countersunk screw 30 can be screwed is formed in the proximal end part 11. A blade support part 22, which supports the proximal end part 11 of each blade portion 10 and which has a hole 23 for the countersunk screw 30, is left at the center in an attaching base 21 of each handle portion 20. A first housing recess 24 for housing the proximal end part 11 and a cover 40 is formed on one side of the blade support part 22, and a second housing recess 25 for housing the cover 40 only is formed on the other side of the blade support part 22. A projection 26 to be engaged with the engagement recess and projection 12 of the brade portion 10 is formed on a sidewall of the first housing recess 24.

Description

  The present invention relates to scissors for cutting paper, cloth, and the like, and more particularly to scissors in which a handle portion and a blade portion are separable.

  Scissors that cut paper and cloth are constructed by attaching handle parts made of various materials such as plastic and wood to two metal blade parts that are fixed by one pivot. The general method for attaching the handle to the blade is to “mold” the handle to the blade when the handle is made of synthetic resin. If the handle is made of wood, use screws, nails or pins. It was to stop.

  However, according to the general stopping method as described above, it has been very difficult to separate the handle portion and the blade portion for, for example, “separate collection of garbage”. Further, when both are stopped by a method other than the above “molding” method, it is difficult to determine the stop position of both from the outside.

  In order to simplify “separation” and “how to stop” in the conventional scissors as described above, for example, there is a technique as disclosed in Patent Document 1.

Japanese Patent Application Laid-Open No. 2004-187741, Summary, Representative Diagram

  The "scissors that can separate the handle and the blade part" proposed in Patent Document 1 was made for the purpose of "providing a method for easily separating and joining the blade and the handle of the scissors without using a tool". As shown in FIG. 6, “there is a blade body A, a handle D, and a stopper B, and the two protrusions A ′, A ″ of the blade A and the outer side D ′, D ″ of the handle D side. The blade body A and the handle D are fixed by inserting the C portion of the stopper B therebetween. " As a result, the “scissors that can separate the handle and the blade portion” proposed in Patent Document 1 are “the handle D and the blade A are removed by removing the C portion of the stopper B from the blade protrusions A ′ and A ″. Can be easily separated ".

  However, the “scissors capable of separating the handle and the blade portion” proposed in Patent Document 1 have “two projections A ′ and A ″ of the blade A”. Since the C portion of the stopper B is inserted between the projections A ′ and A ″ and the handle D side outer side D ′ and D ″ portions, as shown in FIG. The stopper B protrudes greatly at the boundary with the handle D.

  This protruding portion is likely to become a catching portion of the cut paper or cloth when cutting the paper or cloth, and it may be difficult to perform the cutting operation. Above all, it is not easy to manufacture the scissors proposed in Patent Document 1, and it is considered that the scissors must be increased in cost.

  Accordingly, the present inventors can connect or connect the handle portion and the blade portion without a protruding portion around the handle portion, and can easily separate the handle portion and the blade portion. As a result of various studies on what to do, the present invention has been completed.

  In other words, the object of the present invention is that the handle portion and the blade portion can be connected or connected firmly and easily, and the connection or connecting portion has a clean state without a protruding portion. Another object of the present invention is to provide a scissor that can be easily separated from the handle portion and the blade portion and that can be easily manufactured.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the embodiments described later.
“The scissors 100 are obtained by individually attaching the handle portions 20 separately from the blade portions 10 to the base end portions 11 of the pair of blade portions 10, respectively.
While forming the engagement unevenness 12 on the side surface of each base end portion 11, forming a screw hole 13 into which the countersunk screw 30 can be screwed to each base end portion 11,
One of the blade support portions 22 is left on the attachment base portion 21 of each handle portion 20 with the blade portion support portion 22 supporting the base end portion 11 of the blade portion 10 and having a hole 23 for the countersunk screw 30 being left in the center. A first storage recess 24 for storing the base end portion 11 and the cover 40 is formed on the side, and a second storage recess 25 for storing only the cover 40 is formed on the other side of the blade portion support portion 22. 1 A protrusion 26 is formed on the side wall of the storage recess 24 to engage with the engagement unevenness 12 of the blade portion 10;
By screwing the countersunk screw 30 inserted through the hole 23 for the countersunk screw 30 into the screw hole 13 of the base end part 11 stored in the first storage recess 24 from the blade part support part 22 side, The part 11 is supported by the blade support part 22,
Further, an attachment hole or attachment pin 27 for attaching the cover 40 is formed on both sides of the blade portion support portion 22, and an attachment pin or attachment hole 41 inserted into the attachment hole or attachment pin 27 is formed in the cover 40. The scissors 100 are characterized in that each cover 40 is mounted in the first and second storage recesses 24 and 25 by these mounting holes and mounting pins 27 and 41.
It is.

  In the scissors 100 according to the present invention configured as described above, the base end portion 11 of each blade portion 10 is stored in the first storage recess 24 of each handle portion 20, and then the blade portion is supported by the countersunk screw 30. It can be formed by fixing to the portion 22, covering with a cover 40 from above, and covering the second storage recess 25 on the opposite side of the blade portion support portion 22 with the cover 40, and a pair of blade portions 10. Since the connection by the pivot 50 is performed in the conventional manner, it can be easily manufactured in a very short time.

  Of course, when the scissors 100 are used, the pair of blade portions 10 and the handle portion 20 and the pivot shaft 50 for pivotally attaching them are naturally at least two countersunk screws 30 and the attachment base portion 21 of each handle portion 20. Since it is only necessary to prepare a total of four covers 40 on both the front and back sides, the number of parts can be very small. Further, as shown in FIG. 2, each blade part 10, the attachment base part 21 of each handle part 20, and the four covers 40 can be formed by stamping or molding with the same mold, thereby reducing the cost of the production mold. It can be kept low. In particular, with respect to the cover 40, by making the shapes of the first storage recess 24 and the second storage recess 25 the same, it is possible to manufacture all four pieces with the same mold, thereby reducing the overall cost of the scissors 100. It can be reduced.

  Further, the base end portion 11 of each blade portion 10 is in a state in which the engagement unevenness 12 formed on the side surface is engaged with the protrusion 26 formed in the first storage recess 24 on the handle portion 20 side. The blade portion 10 and the handle portion 20 are firmly connected or connected to each other because they are stored in the first storage recess 24 and are connected to the blade portion support portion 22 of the handle portion 20 by the countersunk screws 30. Even if the scissors 100 are used for a long time or used with a large force, the handle portion 20 does not loosen with respect to the blade portion 10, and neither of them will come off.

  Further, in the scissors 100, as shown in FIGS. 1A and 1B, there is any protruding portion by being covered by the cover 40 at the connecting portion between each blade portion 10 and the handle portion 20. Even if it compares with FIG. 6 which shows the technique of patent document 1, it is finished beautifully. For this reason, the scissors 100 do not have any portion that is caught by paper, cloth, or the like that is cut during use, so that the cutting operation can be performed smoothly.

  In the scissors 100, each cover 40 is attached to the attachment hole or attachment pin 27 on the handle portion 20 side by the attachment pin or attachment hole 41. For example, the blade 10 side end of each cover 40 is minus. Each cover 40 can be easily removed from the handle portion 20 if it is caused by the tip of a screwdriver. Then, each blade part 10 and the handle | steering-wheel part 20 can be easily isolate | separated if each countersunk screw 30 is removed with a driver. For this reason, the separated blade part 10 and handle part 20 can easily respond to the separate collection of dust and can be discarded as garbage.

  Therefore, the scissors 100 according to the present invention can firmly and easily connect or connect the handle portion 20 and the blade portion 10 and have a clean state in which there is no protruding portion around the connection or connection portion. Thus, the handle portion 20 and the blade portion 10 can be easily separated from each other, and can be easily manufactured.

As described above, the scissors 100 according to the present invention are
“The scissors 100 are obtained by individually attaching the handle portions 20 separately from the blade portions 10 to the base end portions 11 of the pair of blade portions 10, respectively.
While forming the engagement unevenness 12 on the side surface of each base end portion 11, forming a screw hole 13 into which the countersunk screw 30 can be screwed to each base end portion 11,
One of the blade support portions 22 is left on the attachment base portion 21 of each handle portion 20 with the blade portion support portion 22 supporting the base end portion 11 of the blade portion 10 and having a hole 23 for the countersunk screw 30 being left in the center. A first storage recess 24 for storing the base end portion 11 and the cover 40 is formed on the side, and a second storage recess 25 for storing only the cover 40 is formed on the other side of the blade portion support portion 22. 1 A protrusion 26 is formed on the side wall of the storage recess 24 to engage with the engagement unevenness 12 of the blade portion 10;
By screwing the countersunk screw 30 inserted through the hole 23 for the countersunk screw 30 into the screw hole 13 of the base end part 11 stored in the first storage recess 24 from the blade part support part 22 side, The part 11 is supported by the blade support part 22,
Further, an attachment hole or attachment pin 27 for attaching the cover 40 is formed on both sides of the blade portion support portion 22, and an attachment pin or attachment hole 41 inserted into the attachment hole or attachment pin 27 is formed in the cover 40. The cover 40 is mounted in the first and second storage recesses 24 and 25 by these mounting holes and mounting pins 27 and 41. "
There is a characteristic in the structure, and thereby, the connection or connection between the handle part 20 and the blade part 10 can be performed firmly and easily, and there is no protruding part around the connection or connection part. It is possible to provide the scissors 100 that can be brought into a state, can be easily separated from the handle portion 20 and the blade portion 10, and can be easily manufactured.

The scissors 100 which concern on this invention are shown, (a) is a front view, (b) is a side view. It is a top view mainly of the components which comprise the scissors 100, and what is bundled with {includes a longitudinal section and a bottom view. 2 is a front view of a state in which a base end portion 11 of one blade portion 10 is housed in a first housing recess 24 of a handle portion 20. FIG. The state in which the base end portion 11 of one blade portion 10 is held by the countersunk screw 30 while being housed in the first housing recess 24 of the handle portion 20 is shown, (a) is an exploded view, and (b) is an exploded view. It is sectional drawing. FIG. 4 is a cross-sectional view showing a state in which a base end portion 11 of one blade portion 10 is stopped by a countersunk screw 30 while being stored in a first storage recess 24 of a handle portion 20. It is a front view of scissors shown by patent documents 1.

  Next, the present invention configured as described above will be described with reference to the scissors 100 according to the embodiment shown in the drawings. FIG. 1 shows a front view (a) and a side view of the scissors 100 according to the present embodiment. (B) is shown. The scissors 100 have left and right blade portions 10 pivotally attached by a pivot 50, and the base end portions 11 of these blade portions 10 (shown in FIGS. 2 to 5 because they cannot be represented in FIG. 1). The handle portion 20 made of a synthetic resin formed separately from the blade portion 10 is attached. As shown in FIG. 1, the pivot 50 is connected to the double-edged portion 10 through a washer 51 as shown in FIG. 2 so as to be openable and closable.

  FIG. 2 shows parts necessary for manufacturing the scissors 100 according to the present embodiment. First, in the upper stage of FIG. 2, from the left, a washer 51, two covers 40, and a pair of blades are shown. Two handle portions 20 are shown attached to the portion 10. Here, the washer 51 is expressed by a plan view and a side view, and is enclosed by {, and the two covers 40 are expressed by a bottom view, a longitudinal sectional view, and a plan view, In addition to these two covers 40, two other identical covers 40 are used. Each cover 40 shown in FIG. 2 is used for each of the two handle portions 20 shown on the right side thereof. Of course, the pivot hole 14 into which the pivot 50 and the washer 51 are inserted is formed in the central portion of each blade portion 10.

  In the lower part of FIG. 2, the countersunk screw 30, the pivot 50, and one blade part 10 are shown from the left. The countersunk screw 30 is screwed into the screw hole 13 formed in the base end part 11 mentioned later of each blade part 10 via the blade part support part 22 by the side of the handle part 20, and is shown in FIG. Two handles are used for each of the handle portions 20. As shown in FIG. 1, the pivot shaft 50 pivotally attaches two blade portions 10 via the washer 51, and only one pivot shaft 50 is used.

  Each blade portion 10 is formed of metal so that it is the same on the left and right sides, and so-called “blade attachment” is made on the opposing surfaces of the left portion of the pivot 50 in FIG. As shown also in FIG. 2, the base end part 11 is integrally formed in the part. Each base end portion 11 is completely stored in the first storage recess 24 or the second storage recess 25 of the handle portion 20 when the scissors 100 are completed, and is covered by a cover 40 described later from the surface side. Therefore, as shown in FIG. 1, it is a portion that is completely invisible from the outside.

  Moreover, as shown in FIGS. 2-5, the engagement unevenness | corrugation 12 and the screw hole 13 are formed in the base end part 11 in this embodiment of each blade part 10. As shown in FIG. As shown in FIG. 2, the engagement unevenness 12 is formed on the side surface of the base end portion 11, and a protrusion 26 corresponding to the engagement unevenness 12, that is, an engageable protrusion 26 of the handle portion 20 described later. A protrusion is formed in the first storage recess 24. The number of screw holes 13 formed in the base end portion 11 itself is two in the case of this embodiment, but may be one or more than two. The countersunk screw 30 shown in FIG. 2 can be screwed. Further, the whole countersunk screw 30 is screwed and stored in the screw hole 13, and a recess in which the “dish part” of the countersunk screw 30 is stored is shown in FIG. And as shown in FIG. 5, it forms in the upper part of the said screw hole 13. As shown in FIG.

  As shown in FIGS. 1 and 2, each handle portion 20 of the embodiment is formed for the thumb and other fingers, that is, the left and right ones are slightly different in shape. It may be formed as a shape. While leaving the blade portion support portion 22 on the attachment base portion 21 (the portion to which the base end portion 11 of the blade portion 10 is attached) of each handle portion 20 having a slightly different shape in this embodiment, in particular, FIG. As shown in FIG. 1, the first storage recess 24 and the second storage recess 25 are formed on both sides of the blade support 22.

  The blade portion support portion 22 formed on the attachment base portion 21 of each handle portion 20 is a place where the base end portion 11 of each blade portion 10 is attached by a countersunk screw 30 as shown in FIG. As shown in FIG. 4A, the blade portion support portion 22 has a hole 23 through which the screw portion of the countersunk screw 30 is inserted.

  The first storage recess 24 is formed on one side of the blade portion support portion 22 to store the base end portion 11 and the cover 40, and the second storage recess 25 is a portion of the blade portion support portion 22. It is formed on the other side and houses only the cover 40. Then, in these first storage recess 24 and second storage recess 25, as shown in FIG. 2A and the like, mounting pins or mounting holes 41 of the respective covers 40 described later are inserted. Although the mounting hole or mounting pin 27 is formed, if the mounting hole or mounting pin 27 is “mounting pin”, the mounting pin or mounting hole 41 is “mounting hole”.

Further, in the first storage recess 24 for storing the base end portion 11 and the cover 40, as shown in FIG. 2A in particular, the engagement unevenness formed on the base end portion 11 on the blade portion 10 side. A projection 26 with which the blade 12 is engaged is formed, and this projection 26 serves to position and prevent the proximal end portion 11 of the blade portion 10 from being positioned.

  The cover 40 attached to each mounting hole or mounting pin 27 of the first storage recess 24 and the second storage recess 25 by the mounting pin or mounting hole 41 has a planar shape as shown in FIG. Each of the first storage recess 24 and the second storage recess 25 is formed of a synthetic resin as a material that is completely stored in the first storage recess 24 and the second storage recess 25, respectively. 2 It is molded into a flat shape that matches the shape of the storage recess 25. In other words, if each handle portion 20 is formed to be bilaterally symmetric, the first storage recess 24 and the second storage recess 25 may be formed to have the same shape in plan view. The cover 40 is formed with the same shape in plan view.

  Of course, the mounting pin or mounting hole 41 of each cover 40 is formed at the same position as the mounting hole or mounting pin 27 on the handle portion 20 side, and the length thereof is also the mounting hole or mounting pin. It is the same as the depth of 27. The mounting pins or mounting holes 41 are integrally formed with the main body of each cover 40 by the same synthetic resin material.

DESCRIPTION OF SYMBOLS 100 Scissors 10 Blade part 11 Base end part 12 Engagement unevenness 13 Screw hole 14 Pivot hole 20 Handle part 21 Mounting base 22 Blade part support part 23 Hole 24 1st storage recess 25 2nd storage recess 26 Projection 27 Installation hole or Mounting pin 30 Countersunk screw 40 Cover 41 Mounting pin or mounting hole 50 Axis 51 Washer

Claims (1)

A pair of scissors 100 each having a handle portion 20 separately attached to each base end portion 11 of each of the pair of blade portions 10 separately from the blade portions 10,
While forming the engagement unevenness 12 on the side surface of each base end portion 11, forming a screw hole 13 into which the countersunk screw 30 can be screwed to each base end portion 11,
One of the blade support portions 22 is left on the attachment base portion 21 of each handle portion 20 with the blade portion support portion 22 supporting the base end portion 11 of the blade portion 10 and having a hole 23 for the countersunk screw 30 being left in the center. A first storage recess 24 for storing the base end portion 11 and the cover 40 is formed on the side, and a second storage recess 25 for storing only the cover 40 is formed on the other side of the blade portion support portion 22. 1 A protrusion 26 is formed on the side wall of the storage recess 24 to engage with the engagement unevenness 12 of the blade portion 10;
By screwing the countersunk screw 30 inserted through the hole 23 for the countersunk screw 30 into the screw hole 13 of the base end part 11 stored in the first storage recess 24 from the blade part support part 22 side, The part 11 is supported by the blade support part 22,
Further, an attachment hole or attachment pin 27 for attaching the cover 40 is formed on both sides of the blade portion support portion 22, and an attachment pin or attachment hole 41 inserted into the attachment hole or attachment pin 27 is formed in the cover 40. The scissors 100 are characterized in that the cover 40 is mounted in the first and second storage recesses 24 and 25 by these mounting holes and mounting pins 27 and 41.

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