JPH0314313Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cutting device for cutting a long sheet, such as a synthetic resin sheet, cloth, paper, etc. wound around a cylinder.

[Conventional technology]

Conventional long sheet cutting devices place the sheet on sheet holders arranged in parallel with a slight interval between them, and then place a presser rail on top of the sheet to fix the sheet. , was configured to cut the sheet by sliding a cutting handle having a blade extending between the sheet retaining plates onto the holddown rail.

[Problems that this invention attempts to solve]

In the above-mentioned conventional cutting device, the blade protrudes downward or sideways from the lower surface of the cutting handle, so there is a risk that inexperienced workers or children may inadvertently come into contact with the blade and be injured. Further, the blade is either fixed to the cutting handle or very difficult to replace, and even if the cutting function of the blade deteriorates, there is a problem that it cannot be easily replaced with a new blade.

The present invention was devised in view of the above-mentioned problems with conventional long sheet cutting devices.The purpose of the present invention is to provide a simple and inexpensive structure, and to avoid the risk of workers etc. coming into contact with the blade. To provide a long sheet cutting device that is safe and has blades that can be easily replaced.

[Structure of the idea]

In order to solve the above problem, the present invention has the following structural features. That is, the present invention includes a sheet holding member, a pair of pressing rails arranged in parallel that presses a long sheet on the sheet holding member,
A holding plate that is inverted T-shaped and has vertically upward blade grooves on both lower protrusions and a projection on the upper end of the central protrusion, and a parallelogram-shaped holding plate that is inserted into the blade grooves. It has a pair of cutting blades with blades formed in the upper part that becomes the bevel when the blade is turned, and a contact surface with complementary uneven parts centered on the boundary surface, and the protrusion engages with the boundary surface. It consists of a pair of handle members provided with a retaining plate groove having a notch and further provided with a grip part that engages with the rail parallel to the boundary surface, and the central protruding part of the retaining plate is formed in the assembly of each of the above members. The long sheet cutting device is characterized in that the upper end of the blade reaches near the bottom of the handle member.

〔Example〕

Hereinafter, a cutting device according to an embodiment of the present invention will be explained based on the drawings. As shown in FIG. 1, the cutting device includes a pair of sheet holding members 2 and 4 arranged horizontally in parallel with an interval of about 5 mm, for example, and a cylinder including a midline between the sheet holding members 2 and 4. Press rails 8, 10 are rotatably supported along the plane and placed on the sheet holding members 2, 4 during cutting, and a handle device 12 is slidably mounted on the press rails 8, 10. Consisting of

As shown in FIG. 2, the handle device 12 includes a pair of handle members 14 formed in the same shape, which are integrated by a bolt 16 and a nut (not shown), and a blade member 20 is fixed between them. It becomes. As shown in FIG. 3, the handle member 14 is generally a rounded isosceles triangle, and the surfaces 22 on which the two handle members 14 come into contact are complementary with the mounting surface of the blade member 20 as the center, That is, one is the low surface 24, the other is the high surface 26, and the low surface 2
4 is provided with a protrusion 30 that fits into a recess 28 provided on the high surface 26. Holes 32 through which the bolts 16 pass are provided in the recesses 28 and the projections 30, respectively. A notch 34 is provided at the boundary surface 27 between the low surface 24 and the high surface 26 to prevent the blade member 20 from coming off.
The portion below 4 is set back from the blade mounting surface by half the thickness of the blade member 20, and is provided with a retaining plate groove for holding the blade member 20 there. Grips 42 that fit into the press rails 8 and 10 are provided on both sides of the bottom 40 of the handle member 14.

The blade member 20 is generally shaped like an inverted T, as shown in FIG.
Holding plate 2 constructed by welding two shaped metal plates
1, and a notch 3 at the upper end of the central protrusion 50.
A protrusion 52 is provided which engages with 4. Also,
A lower protrusion 60 extending to both sides at the lower part of the holding plate 21
is provided with a triangular cutting groove 62, into which a parallelogram-shaped cutting blade 66 with a blade 64 formed on one side is inserted.

In the above configuration, the blade member 2
1, and both handle members 14 are connected by bolts 16 and nuts. At this time, the upper end of the cutting blade 66 is in contact with the bottom 40 of the handle member 14, and the protrusion 34 of the blade member 20 is engaged with the notch 52, so the blade member 20 will not come off from the handle device 12. . The cutting device formed as described above is mounted with the grip portion 42 fitted to the press rails 8 and 10. Then, the sheet 6 is placed on the sheet holding members 2 and 4 so that the cutting line of the sheet coincides with the middle of these members, and the top of the sheet 6 is further pressed by the pressing rails 8 and 10. The sheet 6 is cut by sliding the handle device 12 on the pressure rails 8, 10.

On the other hand, the cutting blade 66 can be easily replaced by removing the bolt 16 and nut from the handle device 12 and taking out the blade member 20.

[Effect of idea]

As explained above, the handle member of the present invention can be manufactured at low cost by combining two members of the same shape, and since the blade faces the handle device main body, it is easy for workers and children to use the handle member. There is less risk of inadvertent contact, the device is easy to assemble and disassemble, and the blades can be easily replaced.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a cutting device according to an embodiment of the present invention;
FIG. 2 is a perspective view of the handle device, FIG. 3 is a perspective view of the handle member, and FIG. 4 is a front view of the blade member. 2, 4... Seat holding member, 8, 10... Pressing rail, 12... Handle device, 14... Handle member, 20... Blade member, 27... Boundary surface, 64
...blade, 66...cutting blade.

Claims (1)

[Scope of utility model registration request] a sheet holding member; a pair of parallel pressing rails for pressing the long sheet on the sheet holding member; an inverted T-shape with vertically upwardly directed blade grooves on both lower protrusions; a holding plate having a protrusion at the upper end of the central protrusion; a pair of cutting blades that are parallelogram-shaped and have blades formed in the upper oblique portion when inserted into the blade groove; and an interface. a retaining plate groove having a notch in which the protrusion engages is provided on the boundary surface, and further engages with the rail parallel to the boundary surface. and a pair of handle members provided with a gripping portion to
A long sheet cutting device characterized in that the central protrusion of the holding plate is such that the upper end of the blade reaches near the bottom surface of the handle member in the assembly of the respective members.