JP5512189B2 - Cutting tool for strip member - Google Patents

Description

  The present invention relates to a cutting tool for cutting a band-shaped member such as a band used as a packing material.

  2. Description of the Related Art Conventionally, as disclosed in Patent Documents 1 to 3, a cutting tool in which a blade is provided at the tip is known. These cutting tools are intended to improve cutting workability by adopting a special mechanism in accordance with the characteristics of the object to be cut and the work location (for example, a high place).

  As disclosed in these patent documents, while those using a special mechanism are known, scissors having a well-known structure (in a V shape) are used for cutting a belt-like member such as a general string or band. A scissor having a pair of pivoted blades is used as a cutting tool.

  For example, as in the form of packing shown in FIG. 8A, the material 81 stacked on the pallet 80 is covered with the packing film 82, and the packing film 82 is applied from the outside so as not to collapse. Suppose there is something that surrounds. In the case of such packing, when unpacking, it is possible to cut the packing band 83 using scissors 84 having a known structure. In such packaging, a packaging band 83 made of a synthetic resin such as polypropylene is often used.

JP-A-8-66820 Japanese Patent Laid-Open No. 9-110021 Utility Model Registration No. 3071627 Specification

  In the case of the packing form shown in FIG. 8A, the packing band 83 of the stacked material 81 is firmly tightened to prevent the collapse of the load. As shown in b), a tension 90 is generated in the packing band 83. For this reason, during the unpacking operation, when the cut 85 is made in the packing band 83 by scissors, the tension 90 is concentrated on the uncut portion 86 where the cut 85 is not formed, and the uncut portion 86 is It was confirmed that the phenomenon of tearing occurred.

  And when the uncut part 86 is torn off in this way, the broken piece 87 of the band 83 for packing may fly, and we are anxious also about the unexpected malfunction generate | occur | produced by this scattering. In particular, the packing band 83 made of a synthetic resin is concerned that the fibrous fragments 87 are formed, and since the fragments 87 are minute, it is considered that the possibility of scattering increases. .

  On the other hand, for example, according to the work by two people that one worker eases the tension by pressing both sides of the cutting part of the packing band with hand and the other worker cuts with scissors It is considered that the above problem is solved. However, if it is a work involving two people, a new problem arises, such as a problem of staffing and a decrease in work efficiency.

  On the other hand, the scissors having a known structure are easy to operate, easy to carry, and clear that they are simple. It is hoped that it can be solved.

  Therefore, in view of the above problems, the present invention is a novel structure in which the occurrence of tearing is suppressed when cutting a belt-shaped member in which tension such as a packing band is generated, and which is simple. A cutting tool is proposed.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, as described in claim 1,
A blade for cutting the strip-shaped member;
A clamping mechanism for clamping the parts on both sides of the cut part of the belt-shaped member;
Each having a pair of arm members,
The band-shaped member cutting tool, wherein the pair of arm members are rotatably connected,
In the state of sandwiching the parts on both sides of the part to be cut in each clamping mechanism of the both arm members,
The cut portion is configured to be cut by the blade portions of the both arm members,
Each of the arm members on the opposite side of the blade portion is provided with a finger insertion portion for inserting a finger,
Each of the clamping mechanisms includes a base member fixed to the arm member, and a clamping member connected to the base member via an elastic member and movable relative to the base member.
Each elastic member of each clamping mechanism of each arm member is compressed to generate an elastic reaction force, and both sides of the belt-shaped member are held by the clamping member by the elastic reaction force,
The clamping members are respectively provided on both sides of the blade portions of the arm members,
Each of the holding members is provided so as to be independently movable.
A cutting tool for strip-shaped members.

According to a second aspect of the present invention, the base member is configured to be detachable from the arm member.

Further, as described in claim 3 , the surface of the clamping member that contacts the belt-like member is constituted by a friction surface.

According to a fourth aspect of the present invention, the side of the arm member on which the finger insertion portion is arranged is connected by a string-like member.

  As effects of the present invention, the following effects can be obtained.

That is, in the invention described in claim 1, by cutting the arm member, it is possible to cut the portion to be cut without directly applying the tension acting on the band-shaped member to the portion to be cut. In the cutting process, it is possible to prevent a problem that the uncut portion is torn off, and it is possible to reliably prevent the generation and scattering of fragments at the cut site. In addition, the band-shaped member can be cut by inserting the finger into the finger insertion portion and rotating the arm member so that the blade portions are brought close to each other to sandwich the band-shaped member, and the cutting operation is performed by the same operation as the scissors having a known structure. The operability is extremely good. Needless to say, the cutting operation can be performed by one worker because the operation can be performed with one hand. Further, in a state where the band-shaped member is clamped by the clamping mechanism, the elastic member is compressed to generate an elastic reaction force, and the band-shaped member can be firmly clamped by this elastic reaction force.

In the invention described in claim 2, when the blade portion of the arm member is worn, etc., the blade portion can be easily maintained by removing the base member.

Further, in the invention described in claim 3 , a high frictional force is generated between the belt-like member and the friction surface, and when the belt-like member is sandwiched by the sandwiching mechanism, the belt-like member slips from the sandwiching mechanism. It is possible to prevent the disconnection more reliably.

Further, in the invention described in claim 4 , even when the cutting is completed and the force applied to the finger insertion portion is released, the distance that the finger insertion portion separates is limited by the string-like member. The reaction force generated when the elastic member returns elastically can prevent the distance between the finger insertion portions from being greatly opened, and a large burden or impact on the inserted finger can be prevented.

The figure shown about one Example of the cutting tool of this invention. The figure shown about the state which decomposed | disassembled the cutting tool. (A) is a figure shown about fixation to the arm member of a clamping mechanism. (B) is a figure shown about the state which fixed the stopper member to the rod-shaped member. (C) is a figure shown about the structural member of a clamping mechanism. (A) is a figure shown about the state before clamping a strip | belt-shaped member. (B) is a figure shown about the state which clamped the strip | belt-shaped member. (C) is a figure shown about the state which cut | disconnects a strip | belt-shaped member. (A) is a figure shown about the state which clamped the strip | belt-shaped member. (B) is a figure shown about the state which cut | disconnects a strip | belt-shaped member. (C) is a figure shown about the state by which the strip | belt-shaped member was cut | disconnected. (A) is a figure shown about the state which clamped the strip | belt-shaped member. (B) is a figure shown about the state which cut | notched a part of strip | belt-shaped member. (C) is a figure shown about the state which cut | notched all the strip | belt-shaped members. (D) The figure shown about the state by which the strip | belt-shaped member was cut | disconnected. The figure shown about the other structural example of a cutting tool. (A) is a figure shown about one form of the conventional packaging. (B) is a figure explaining the situation at the time of a packing band being cut | disconnected by the scissors of a known structure.

Next, embodiments of the invention will be described.
As shown in the embodiment of FIG.
Blade portions 21 and 31 for cutting the belt-shaped member 5;
Clamping mechanisms 23 and 33 for clamping the parts on both sides of the cut part 5a of the band-shaped member 5;
A pair of arm members 2, 3 each having
A cutting tool 1 in which the pair of arm members 2 and 3 are rotatably connected,
In the state where the parts on both sides of the part to be cut 5a are clamped by the clamping mechanisms 23, 33 of the arm members 2, 3
The cut portion 5a is configured to be cut by the blade portions 21 and 31 of the both arm members 2 and 3,
The cutting tool 1 is used.
Details of the examples will be described below.

  As shown in FIG. 1, the cutting tool 1 has a configuration in which a pair of arm members 2 and 3 are rotatably connected by a rotation shaft 4. Blade portions 21 and 31 are provided, and finger insertion portions 22 and 32 for inserting fingers are provided on the other end side, respectively.

  With this configuration, as shown in FIG. 1, the fingers are inserted into the finger insertion portions 22 and 32, and the arm members 2 and 3 are rotated with the rotation shaft 4 as a fulcrum to bring the blade portions 21 and 31 closer to each other to form a belt shape. The band-shaped member 5 can be cut by sandwiching the member 5. Note that the band-like member 5 to be cut includes a belt-like member having a width as shown in FIG. 1 and a member having a circular, elliptical, or polygonal cross section.

  Moreover, as shown in FIG. 1, in each arm member 2 * 3, it is set as the structure by which the clamping mechanism 23 * 33 is each provided in the site | part in which the blade parts 21 * 31 are formed. The sandwiching mechanisms 23 and 33 are configured to sandwich and sandwich both sides of the cut portion 5a of the strip member 5 when the strip member 5 is cut.

FIG. 2 shows a state in which the pair of arm members 2 and 3 are disassembled.
The arm members 2 and 3 are formed at the first arm portions 2a and 3a where the blade portions 21 and 31 are formed, and at portions opposite to the blade portions 21 and 31 of the first arm portions 2a and 3a. Second arm portions 2b and 3b. In the second arm portions 2b and 3b, the base members 23c and 33c of the clamping mechanisms 23 and 33 are fixed, respectively.

  Moreover, the clamping mechanisms 23 and 33 shown in FIG. 2 show a disassembled state. The clamping mechanisms 23 and 33 of both arm members 2 and 3 have the same configuration, and the configuration of the clamping mechanism 23 of the arm member 2 will be described with reference to FIGS. 3 (a), 3 (b), and 3 (c). The clamping mechanism 23 is connected to a base member 23c fixed to the second arm portion 2b of the arm member 2 and the base member 23c via elastic members 23s and 23s, and is capable of relative movement with respect to the base member 23c. The members 23a and 23b are included.

  As shown in FIGS. 3A, 3B, and 3C, the base member 23c is a plate-like member having a vertical width W1 and a horizontal width W2, and one side surface of the base member 23c is the second arm portion 2b of the arm member 2. It is fixed by welding or adhesive. The base member 23c is provided with through holes 23d and 23d at a plurality of locations (four locations in the present embodiment).

  3A, 3B, and 3C, the clamping members 23a and 23b are plate-like members having a vertical width W3 and a horizontal width W4, respectively. In this embodiment, rod-like members 23e and 23e are projected at two locations. The elastic members 23s and 23s are attached to the rod-like members 23e and 23e so as to penetrate the rod-like members 23e and 23e inward. In this embodiment, the elastic members 23s and 23s are spiral spring members, and rod-like members 23e and 23e are inserted into the spring members. The elastic members 23s and 23s can be made of various materials such as metal, rubber, and resin, and are not particularly limited. Moreover, not only a spiral thing but a cylindrical thing and a leaf | plate spring-like thing may be sufficient, and it does not specifically limit.

  Further, as shown in FIGS. 3A, 3B, and 3C, the elastic members 23s and 23s are attached to the rod-like members 23e and 23e, and the tip portions 23f and 23f of the rod-like members 23e and 23e are attached to the base. The through-holes 23d and 23d of the member 23c are respectively inserted, and the tip portions 23f and 23f are projected from the base member 23c. The inner diameters of the through holes 23d and 23d are larger than the outer diameters of the rod-like members 23e and 23e (tip portions 23f and 23f) so that the rod-like members 23e and 23e can advance and retreat through the through-holes 23d and 23d. Yes.

  Further, as shown in FIGS. 3A, 3B, and 3C, stopper members 23g and 23g having outer diameters larger than the inner diameters of the through holes 23d and 23d are provided at the tip portions 23f and 23f protruding from the base member 23c. Mounted. Thereby, the rod-shaped members 23e and 23e are in a state where they do not fall out of the base member 23c. In the present embodiment, the rod-like members 23e and 23e are constituted by a bolt member in which a male screw is formed at the distal end portions 23f and 23f, and the stopper members 23g and 23g are constituted by nut members. A simple structure can be realized, but is not particularly limited to this configuration.

  Further, as shown in FIG. 3C, the holding members 23a and 23b are arranged so that a gap 23h having a width W5 is formed therebetween. The first arm portion 2a and the second arm portion 2b of the arm member 2 are arranged between the gap 23h, and the first arm portion 2a passes through the gap 23h as will be described later. Thus, the strip member can be cut.

  As described above, as shown in FIGS. 3A, 3B, and 3C, in the clamping mechanism 23, the clamping members 23a and 23b are attached to the base member 23c via the elastic members 23s and 23s, respectively. It becomes a state. Further, the distance between the holding members 23a and 23b and the base member 23c is configured to be changed by deformation of the elastic members 23s and 23s. The clamping members 23a and 23b are arranged on the blade portion 21 side of the first arm portion 2a.

  The configuration of the clamping mechanism 23 on the arm member 2 side shown in FIGS. 3A, 3B, and 3C is similarly applied to the clamping mechanism 33 provided on the arm member 3 shown in FIG. The description of the clamping mechanism 33 is omitted. Further, as shown in FIG. 5A, the clamping mechanisms 23 and 33 are arranged to face each other, so that the respective clamping members 23a and 23b and the clamping members 33a and 33b are arranged to face each other. It has become so.

Next, the cutting of the belt-like member 5 will be described with reference to FIGS.
As shown in FIG. 4A, the clamping mechanisms 23 and 33 are provided on the arm members 2 and 3, respectively, and the clamping members 23a and 33a face each other. In this state, the arm members 2 and 3 are rotated in a state where the belt-like member 5 is disposed between the holding members 23a and 33a. If it does so, as shown in FIG.4 (b), it will be in the state by which the strip | belt-shaped member 5 was clamped between the member 23a * 33a for clamping.

  Moreover, in the state of FIG.4 (b), as shown to Fig.5 (a), it is the state by which the strip | belt-shaped member 5 was clamped by clamping member 23a * 33a and clamping member 23b * 33b. Further, since the gaps 23h and 33h having the width W5 exist between the clamping members 23a and 23b and the clamping members 33a and 33b, the belt-like member 5 is not clamped in a range corresponding to the width W5. It is in a state. Within the range corresponding to the width W5 of the belt-like member 5 that is not sandwiched, the part to be cut 5a (part to be cut by the blade portions 21 and 31) is formed.

  Further, as shown in FIGS. 4B and 5A, in a state where the belt-like member 5 is sandwiched by the sandwiching mechanisms 23 and 33, the elastic members 23s and 33s are compressed, and the sandwiching members 23a and 23b The distance between the base member 23c and the distance between the holding members 33a and 33b and the base member 33c are reduced. Moreover, by this, the rod-shaped members 23e and 33e are protruded from the base members 23c and 33c, respectively. By being in such a state, an elastic reaction force is generated in the elastic members 23s and 33s, and the belt-like member 5 is firmly held by the elastic reaction force.

  Further, in the state of FIG. 4B, as shown in FIG. 5A and FIG. 6A, even if the tension T1 and T2 is acting on the belt-like member 5, it is to be cut. As for the part 5a, since both sides thereof are sandwiched by the sandwiching members 23a and 33a and the sandwiching members 23b and 33b, the tension T1 and T2 are not directly applied to the part 5a to be cut. It has become. As described above, in the belt-like member 5, the tensions T <b> 1 and T <b> 2 do not act directly on the cut site 5 a by sandwiching both sides of the cut site 5 a by the clamping mechanisms 23 and 33. The tensions T1 and T2 are generated by tightly tightening the belt-like member 5 to prevent the collapse of the load during packing, and the belt-like member 5 is clamped by the clamping mechanisms 23 and 33. Even in this case, a tension exists in the cut site 5a, but this tension is extremely smaller than the tensions T1 and T2 acting on the entire belt-shaped member 5.

  4B, the blade portions 21 and 31 do not reach the cut portion 5a of the belt-like member 5 as shown in FIG. 5A. That is, before the blade portions 21 and 31 reach the belt-like member 5, the clamping of the belt-like member 5 by the clamping mechanisms 23 and 33 is completed.

  And as shown in FIG.4 (c), by further rotating arm member 2 * 3, the strip | belt-shaped member 5 is cut | disconnected by the blade parts 21 * 31. At the time of this cutting, as shown in FIG. 5 (b), since both sides of the cut portion 5a are held by the holding mechanisms 23 and 33 in the strip member 5, the tension T1 is applied to the cut portion 5a. -Cutting can be performed in a situation where T2 does not act directly.

  Further, as shown in FIG. 6B, even when the cutting at the cut site 5a is started and the cut 5b is entered, the tension T1 and T2 do not act directly on the cut site 5a. For this reason, as shown in FIG.6 (c), cutting | disconnection can be completed, without opening the location of the cut 5b largely with tension | tensile_strength T1 * T2.

  In addition, as shown in FIG. 6B, in the cutting process, the tensions T1 and T2 are not directly cut because the tensions T1 and T2 are not directly applied to the uncut portion 5c that is not provided with the cut 5b. There is no direct concentration on the location 5c. For this reason, it can suppress reliably that the uncut location 5c is torn off by tension | tensile_strength T1 * T2.

  As described above, as shown in FIGS. 4C and 5B, when the cutting of the belt-like member 5 is completed and the force of the hand that has rotated the arm members 2 and 3 is loosened, first, FIG. As shown in FIG. 5B and FIG. 5C, the blade portions 21 and 31 of the arm members 2 and 3 are separated from the belt-like member 5, and then, as shown in FIG. When the holding members 23a and 33a of 33 are separated from each other, the belt-like member 5 is opened, and the cutting work of the belt-like member 5 can be completed as shown in FIG. 6 (d).

As described above, the present invention can be implemented.
That is, as shown in FIG.
Blade portions 21 and 31 for cutting the belt-shaped member 5;
Clamping mechanisms 23 and 33 for clamping the parts on both sides of the cut part 5a of the band-shaped member 5;
A pair of arm members 2, 3 each having
A cutting tool 1 in which the pair of arm members 2 and 3 are rotatably connected,
In the state where the parts on both sides of the part to be cut 5a are clamped by the clamping mechanisms 23, 33 of the arm members 2, 3
The cut portion 5a is configured to be cut by the blade portions 21 and 31 of the both arm members 2 and 3,
The cutting tool 1 is used.

  As a result, by simply rotating the arm members 2 and 3, the cut portion 5 a can be cut without directly applying the tensions T <b> 1 and T <b> 2 acting on the band-shaped member 5 to the cut portion 5 a. In the cutting process, it is possible to prevent a problem that an uncut portion is torn off, and it is possible to reliably prevent generation and scattering of fragments of the cut site 5a.

  Moreover, as shown in FIG. 1, it is set as the structure by which the finger insertion part 22 * 32 for inserting a finger is each provided in the site | part on the opposite side of the said blade parts 21 * 31 in both said arm members 2 * 3. Is.

  Thereby, while putting a finger in the finger insertion parts 22 and 32, the arm members 2 and 3 are rotated, the blade parts 21 and 31 are brought close to each other, and the belt-like member 5 is sandwiched, whereby the belt-like member 5 can be cut. A cutting operation can be performed by an operation equivalent to a scissors having a known structure (scissors having a pair of blades pivoted in a V shape), and the operability is extremely good. Needless to say, the cutting operation can be performed by one worker because the operation can be performed with one hand.

  Further, as shown in FIG. 1, the clamping mechanisms 23 and 33 are connected to base members 23c and 33c fixed to the arm members 2 and 3, and the base members 23c and 33c via elastic members 23s and 33s, The holding members 23a and 23b are movable relative to the base members 23c and 33c.

  As a result, as shown in FIGS. 4B and 5A, in the state where the belt-like member 5 is sandwiched by the sandwiching mechanisms 23 and 33, the elastic members 23s and 33s are compressed and elastic reaction force is generated. The belt-like member 5 can be firmly held by the elastic reaction force.

  Further, in addition to the above-described embodiments, as shown in FIG. 7, the base members 23c and 33c may be configured to be detachable from the arm members 2 and 3.

  Thereby, when the blade parts 21 and 31 of the arm members 2 and 3 are worn, the blade parts 21 and 31 can be easily maintained by removing the base members 23c and 33c. The specific configuration that enables the base members 23c and 33c to be attached and detached is not particularly limited. For example, the groove portions 23k and the like for fitting and fixing the arm members 2 and 3 to the base members 23c and 33c. This can be realized by providing 33k.

  Moreover, as shown in FIG. 7, the surface which touches the strip | belt-shaped member 5 in clamping member 33a * 33b (similarly the clamping members 23a * 23b) is good also as being comprised by the friction surfaces 33m * 33m.

  As a result, a high frictional force is generated between the belt-like member 5 and the friction surfaces 33m and 33m. When the belt-like member 5 is sandwiched by the sandwiching mechanisms 23 and 33, the belt-like member 5 slips and the sandwiching mechanism 23 is sandwiched. -It becomes possible to prevent from coming off 33 more reliably. In addition, as a method of forming the friction surfaces 33m and 33m, a method of forming a surface with an uneven surface or affixing a sheet-like material that generates high friction on the surface can be applied.

  Further, as shown in FIG. 7, the side of the arm members 2 and 3 where the finger insertion portions 22 and 32 are arranged (the side opposite to the blade portions 21 and 31 with the rotating shaft 4 interposed) is a string-like member. 6 may be connected.

  Thereby, even when the cutting is completed and the force applied to the finger insertion portions 22 and 32 is released, the distance between the finger insertion portions 22 and 32 is limited by the string-like member 6. The reaction force generated when the elastic members 23 s and 23 s are elastically restored increases the distance between the finger insertion portions 22 and 32, thereby preventing a large burden or impact from being generated on the inserted finger.

  INDUSTRIAL APPLICABILITY The present invention can be widely used as a cutting tool for cutting a band-like member in a state where tension is generated, such as a packing band.

DESCRIPTION OF SYMBOLS 1 Cutting tool 2 Arm member 3 Arm member 4 Rotating shaft 5 Band-shaped member 5a Cutting part 21 Blade part 22 Finger insertion part 23 Clamping mechanism 23a Clamping member 23c Base member 23s Elastic member 33 Clamping mechanism T1 Tension T2 Tension

Claims (4)

A blade for cutting the strip-shaped member;
A clamping mechanism for clamping the parts on both sides of the cut part of the belt-shaped member;
Each having a pair of arm members,
The band-shaped member cutting tool, wherein the pair of arm members are rotatably connected,
In the state of sandwiching the parts on both sides of the part to be cut in each clamping mechanism of the both arm members,
The cut portion is configured to be cut by the blade portions of the both arm members,
Each of the arm members on the opposite side of the blade portion is provided with a finger insertion portion for inserting a finger,
Each of the clamping mechanisms includes a base member fixed to the arm member, and a clamping member connected to the base member via an elastic member and movable relative to the base member.
Each elastic member of each clamping mechanism of each arm member is compressed to generate an elastic reaction force, and both sides of the belt-shaped member are held by the clamping member by the elastic reaction force,
The clamping members are respectively provided on both sides of the blade portions of the arm members,
Each of the holding members is provided so as to be independently movable.
Cutting tool for strip-shaped member. The base member is configured to be detachable from the arm member.
The strip-shaped member cutting tool according to claim 1 . Surface in contact with the belt-shaped member in the pinching member is composed of a friction surface,
The strip-shaped member cutting tool according to claim 1 or 2 , characterized by the above. The side on which the finger insertion part of the arm member is arranged is configured to be tied with a string-like member.
The cutting tool of the strip | belt-shaped member as described in any one of Claim 2 or Claim 3 characterized by the above-mentioned.

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