JPH0137918Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a tube cutter with a measure.

[Conventional technology]

FIG. 6 shows a conventional tube cutter 40 of this kind, in which a blade 44 is exchangeably attached to an upper arm 42 of a clip-shaped main body rotatably attached at the tip, and a lower arm 46 is mounted on a V-shaped tube cutter. The tube to be cut is placed on the placement part 48, and the upper arm 42 is pushed down so that the blade 44 cuts the tube to the required length.

[Problem that the invention attempts to solve]

However, the tube cutter 40 described above also has the following problems.

That is, tubes to be cut by the tube cutter 40 have various uses, but in the case of an air circulation tube for a pneumatic circuit, the cutting operation is performed when assembling pneumatic equipment. There are many cases.

In this case, the dimensions of the tube to be cut can be determined by measuring with a measurer carried separately and marking lines with a ballpoint pen, or if a measurer is not carried, the actual dimensions of the air circuit. The only way to do this is to do it visually.

However, carrying a separate mezier each time is cumbersome and easy to forget. On the other hand, setting dimensions visually tends to be inaccurate.

Therefore, the present invention was devised to solve the above-mentioned problems, and its purpose is to easily measure the dimensions of the tube to be cut, and to use an elastic means to store the measurer in the upper part. To provide a tube cutter with a measurer which is easier to use, has fewer parts, and is more compact by automatically pushing up the arm.

[Means for solving problems]

In order to solve the above problems, the present invention has the following configuration.

That is, in a tube cutter that has a tube placement part on a base and cuts a tube placed on the tube placement part to a required length by pushing down a blade body that approaches and separates in the direction of the base, the above-mentioned The upper arm is attached to the base so that it can rotate within a certain range,
The blade body is attached to the upper arm, a measurer equipped with elastic means for pressing in the storage direction is provided on the base so as to be freely drawn out, and the upper arm is connected to the elastic means to separate the blade body from the base. It is characterized by being pressed in the direction.

[Effect]

Since the present invention has the above configuration, when cutting a tube to the required length, first pull out the scale of the measurer, align the tip of the tube with the tip of the pulled out scale, measure the required length, and then cut the tube to the required length. The tube can be cut according to the cut, and after cutting, the blade is automatically pushed up by the force of the elastic means to prepare for the next cut.

〔Example〕

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

1 to 4 are explanatory diagrams showing an example of a tube cutter according to the present invention.

In the figure, reference numeral 10 is the base, and reference numeral 11 is the blade 1.
2 is a movable body that is an upper arm to which it can be detachably attached.

The movable body 11 is fixed to a fan-shaped plate 14 which is supported by a support shaft 13 on the base 10, and is attached to the base 10 so as to be freely rotatable about the support shaft 13. Note that the rotation of the movable body 11 is based on the base 10.
The mounting portion 11a protruding from the movable body 11 for mounting the blade 12 is brought into contact with the stepped portion 10a formed in the step portion 10a, so that rotation in one direction (counterclockwise direction in FIG. 1) is achieved. is limited. On the other hand, the base 10 has a tube mounting portion 10b protruding from the mounting portion 1.
1a, the rotation in the other direction (clockwise in FIG. 1) is restricted, and therefore, the movable body 11
The rotation is made within a certain range.

As shown in FIG. 5, the blade body 12 has a hexagonal overall shape, and a cutting edge 12a is provided at each vertex and all of the edges. Blade body 1
2, six mounting holes 12b are formed at equal intervals.

The blade body 12 is attached to the mounting portion 11a of the movable body 11 with two
It is removably mounted while being positioned using the mounting screws 12c. In addition, at that time, the movable body 1
When the blade 1 rotates, one vertex of the blade 12 is set to face the tube mounting portion 10b.

A tube mounting section 10 protruding from the base 10
b is formed with a groove 10c into which the corresponding apex of the blade 12 and both ridges sandwiching the apex can fit when the mounting portion 11a of the movable body 11 is brought into contact with the movable body 11. Further, the tube mounting section 10b is formed so that the upper surface thereof is approximately V-shaped so that the tube to be cut can be easily placed thereon, and the tube (not shown) is stably held in a fixed position on the tube mounting section 10b. It will be posted. The position where this tube can be stably placed is the position where when the movable body 11 is rotated and the blade body 12 is lowered, the position of the corresponding apex of the blade body 12 is slightly off from the center line of the tube. It is preferable to set it as follows.

A measure storage portion 10d having a circular cross section is formed so as to surround the support shaft 13 of the base 10. A groove 10e is formed in the tangential direction in this measure storage portion 10d, and the groove 10e communicates with the outlet 10f. A measurer 15 is stored in a spiral shape in the measurer storage portion 10d. The spiral inner end of the measurer 15 is connected to the outer end of a spiral spring 16, which is an elastic means.
The outer end thereof is extendable to the outside of the measure storage portion 10d through the groove 10e and the outlet 10f, and is attached with a handle 17 bent into an L-shape that abuts the outlet 10f. There is. Further, the inner end of the spiral spring 16 is connected to the plate body through the support shaft 13 or the pin 18 (in the drawing, the pin 18 is used).
4. Therefore, the inner end of the spiral spring 16 is connected to the movable body 11, and the spring 16 always moves the movable body 11 in the direction away from the tube mounting portion 10b (the state shown by the two-dot chain line in FIG. 1). Pressed by

Since the tube cutter according to the present invention is as described above, in order to cut the tube to the required length, hold the handle 17 and pull out the measurer 15 from the measurer storage part 10d against the elasticity of the spiral spring 16. , measure the position where the tube should be cut. Then, while marking the position with your finger or the like, release the force to pull out the measurer 15 and remove the measurer 15.
is completely wound up in the measure storage section 10d by the return elasticity of the spiral spring 16, and then the tube is placed on the tube mounting section 10b so that the measured position is in the groove 10c. Next, the movable body 11 is rotated in a direction approaching the tube mounting portion 10b against the elasticity of the spiral spring 16, and the tube is cut into a predetermined length by inserting the blade 12 into the groove 10c. do it.

After cutting the tube, if the force for rotating the movable body 11 is relaxed, the movable body 11 is automatically rotated in the direction away from the tube mounting portion 10b by the pressing force of the spiral spring 16, and the blade is rotated. The body 12 is a concave groove 10
c, and the tube is then automatically prepared for cutting.

Furthermore, even if the cutting edge 12a at one apex of the blade body 12 is damaged, by loosening the screw 12c and setting the other apex so that it faces downward, the blade body 12 can be replaced each time as in the conventional case. The tube can always be cut properly with a sharp cutting edge. Further, the blade body 12 is not limited to a hexagonal shape.

As described above, if the tube mounting portion 10b is set so that the apex of the blade 12 and the tube are slightly shifted, the cutting will be started by the ridge first, and then the apex will lead the cutting. Since it lasts longer, it becomes easier to cut.

[Effect of idea]

As described above, according to the tube cutter with a measurer according to the present invention, the cutting position of the tube can be easily measured and the tube can be cut to a desired length. Furthermore, after cutting, the movable body, which is the upper arm, is automatically rotated in the direction away from the tube mounting part by the spiral spring, which is an elastic means, and preparations for cutting the tube are automatically made. In addition, since the spiral spring is also used as the spiral spring used to press the measurer in the storage direction, the number of parts can be reduced, making it possible to manufacture at a lower cost.
Moreover, it has effects such as being able to be made compact.

[Brief explanation of the drawing]

Fig. 1 is a front view of the cutter according to the present invention, Fig. 2 is a rear view of the cutter, Fig. 3 is a plan view of the cutter, Fig. 4 is a right side view of the cutter, and Fig. 5 is the blade body. FIG. 6 is a front view and a perspective view of a conventional tube cutter. DESCRIPTION OF SYMBOLS 10...Base, 10a...Step part, 10b...Tube mounting part, 10c...Concave groove, 10d...Measure storage part, 10e...Groove, 10f...Exit, 11...Movable body,
12...Blade body, 12a...Cutting blade, 12b...Mounting hole, 1
2c...Mounting screw, 13...Spindle, 14...Plate, 15
...Mejiya, 16...Spiral spring, 17...Handshake, 1
8...Pin.

Claims (1)

[Scope of utility model registration request] In a tube cutter that has a tube placement section on a base and cuts a tube placed on the tube placement section to a required length by pushing down a blade that approaches and separates in the direction of the base, the base An upper arm is attached to the upper arm so as to be rotatable within a certain range, the blade body is attached to the upper arm, a measurer having elastic means for pressing in the storage direction is provided on the base so as to be freely drawn out, and the upper arm is attached to the elastic means. A tube cutter with a measure, which is configured to connect the blades and press the blade in a direction away from the base.