JP3216749U - Portable hose cutter - Google Patents

Abstract

Provided is a portable hose cutter which can manufacture a hose having a predetermined length quickly and easily with high accuracy, and can reduce variations in the finish of a cut portion. A length-measuring unit in which a length-measuring mechanism for measuring a length of a hose that has passed through an insertion path 12 of the case 11 and displaying the measured value is built in the case 11 and a receiving blade 52 and a cutter unit 50 having a cutting edge 54. The receiving blade 52 of the cutter unit 50 is fixed to the casing 11 of the length measuring unit 10. The cutting edge 59 of the receiving blade 52 is positioned at a position where the hose sent out through the insertion path 12 rides up. The length measurement unit 10 has a measurement value reset function for setting a measurement value as a reference value. For the cutter unit 50, a hose cutting rod 51 can be used. [Selection] Figure 1

Description

  The present invention relates to a portable hose cutter used for cutting a long hose into an arbitrary length.

  When pipe construction is performed using a resin or rubber hose or tube (hereinafter referred to as “hose”), the long hose may be cut to produce the required length of hose. Is called. In addition, the work of cutting the long hose to produce the required length hose is not limited to pipe construction, but is performed in various situations as needed when the hose to be used is too long .

  Conventionally, when a hose having a required length is manufactured by cutting a long hose, the length of a predetermined portion of the hose is measured to mark the cut portion, and the portion is cut. When measuring the length, a measure was used, and when cutting, a hose cutting rod was used (conventional example).

  On the other hand, various instruments and devices for measuring the length of a long cable have been conventionally proposed (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3). The instrument for measuring the length of a cable proposed by Patent Document 1 or Patent Document 2 employs a mechanical length measuring mechanism, and moves the cable in the axial direction by contacting the cable with a roller. The roller is rotated following the movement of the cable, and the amount of movement of the cable calculated from the number of rotations is displayed in units of length. In addition, there is also known a method in which an axial movement amount of a cable is measured optically or electronically and the movement amount is displayed in a unit of length. Moreover, in the instrument for measuring the length of the cable proposed by Patent Document 3, the indicator that displays the measured length of the cable has a reset button, and the measured value is reset by the reset button. Can be done.

Japanese Utility Model Publication No. 56-23402 Japanese Utility Model Publication No. 58-129104 Japanese Utility Model Publication No. 1-96471

  However, when measuring the length and cutting with separate tools, as in the conventional example using a measure for measuring the length and using a hose cutting rod for cutting, it is called a measure and a hose cutting rod. Not only is it cumbersome and troublesome to carry two instruments in advance and use them at different timings, it is difficult to increase the accuracy of length measurement, and there are variations in the finish of multiple cutting points. There was a problem that it was easy.

  Therefore, the inventor of the present application uses an instrument for mechanically measuring the length of a cable as proposed in Patent Document 1 or Patent Document 2, and the cable to be used is the use of the hose cutter of the present invention. Focusing on the fact that it is a long object like the target hose, and making a device that measures the length of the hose by adopting the basic structure of the device and making a simple design change It came to the idea that is possible. The same can be said for instruments for measuring length optically or electronically. Then, by combining and combining a device for measuring the length of a hose manufactured under such a concept (hereinafter referred to as “hose length measuring device”) and a hose cutting rod, the length It was thought that the cutting work of the hose for which the measurement was performed could be performed quickly and easily, the length measurement accuracy was easy to improve, and variations in the finish of the cut portion would not easily occur.

  The present invention has been made under the above circumstances, and includes a length measuring unit capable of measuring the length of a hose and displaying the measured value, and a cutter unit capable of cutting the hose. It is an object of the present invention to provide a portable hose cutter that can manufacture a hose having a predetermined length quickly and easily with high accuracy and that can reduce variations in the finish of the cut portion based on the combination.

  A portable hose cutter according to the present invention includes a length measuring unit that has a built-in length measuring mechanism that measures the length of a hose that has passed through the insertion path and displays the measured value in a housing having a hose insertion path. And a cutter unit having a receiving blade and a cutting blade that can be opened and closed between an opening position with respect to the receiving blade and an overlapping closed position. The receiving blade of the cutter unit is fixed to the housing of the length measuring unit, and an outlet of the insertion path is formed in an open space formed between the receiving blade and the cutting blade at the open position. The cutting edge of the receiving blade is positioned at a position where the hose sent out through the insertion path rides up.

  According to the portable hose cutter configured in this way, since the length measuring unit and the cutter unit are integrated, it is only possible to carry both units as a single instrument to the working position easily. Instead, the length of the hose can be quickly and easily manufactured by cutting the hose with the cutter unit based on the measured value displayed by measuring the length of the hose with the length measuring unit. Furthermore, by adopting a configuration in which the cutting edge of the receiving blade is positioned at a position where the hose sent through the insertion path rides up, the hose that is supported by riding on the cutting edge of the receiving blade is supported. Since the cutting is performed by the cutter unit, the hose having a predetermined length can be accurately manufactured without twisting or bending the hose at the time of cutting, and variation in the finish of the cut portion is reduced.

  In the present invention, the length measuring unit sets the measured value in a state in which the tip of the hose sent out through the insertion path is in contact with the side surface of the cutting blade in the closed position as a reference value. It is desirable to have a measurement value reset function. According to this, the tip of the hose sent out through the insertion path of the length measurement unit is brought into contact with the side surface of the cutting blade at the closed position in the cutter unit, and in that state, the measured value is reset using the measured value reset function. After setting the value to the reference value, open the cutting blade and pull out the hose from the insertion path through the open space between the receiving blade and the cutting blade. The value is displayed. Therefore, if the hose is cut by the cutter unit when the measured value indicates the desired length, the hose having a predetermined length is accurately manufactured.

  In the present invention, the cutter unit is a hose cutting rod in which the receiving blade and the cutting blade are separately connected to each of two handles connected to each other through a fulcrum so as to be opened and closed. It is possible to adopt the configuration of. According to this, the operator can feed the hose into the insertion path with one hand, pull it out from the outlet, and operate the hose cutting rod with the other hand to cut the hose. There is an advantage that it is easy to use.

  In the present invention, a feed roller that comes into contact with the hose inserted in the insertion passage of the housing is built in, and the hose that has passed through the insertion passage is rotated forward and backward by rotating the feed roller forward and backward. It is possible to adopt a configuration in which the casing is equipped with a rotary operation knob for adjusting the length. According to this, since it becomes possible to adjust the length of the hose that has passed through the insertion passage of the housing by operating the rotary operation knob, it is possible to further improve the manufacturing accuracy of the hose having a predetermined length. become.

  In the present invention, the “hose length measuring instrument” that can measure the length of the hose and display the measured value as described in the beginning can be diverted to the length measuring unit. The hose cutting rod having the same basic structure as the well-known hose cutting rod known in the art as described at the beginning can be used for the cutter unit.

  As described above, according to the present invention, the length measuring unit capable of measuring the length of the hose and displaying the measured value and the cutter unit capable of cutting the hose are combined and integrated. Therefore, not only can a hose having a predetermined length be manufactured quickly and easily with high accuracy, but also there is an advantage that variations in the finish of the cut portion are less likely to occur. Moreover, the convenience that it is possible to easily cut the hose by carrying it to the work site is also obtained.

It is a schematic perspective view of the hose cutter which concerns on embodiment of this invention. It is explanatory drawing of a use state. It is explanatory drawing of a use state. It is explanatory drawing which illustrated the counter of the length measurement unit.

  FIG. 1 is a schematic perspective view of a hose cutter according to an embodiment of the present invention. 2 and 3 are explanatory diagrams of the usage state, and FIG. 4 is an explanatory diagram exemplifying a counter that displays measurement values provided in the length measurement unit.

  The hose cutter according to the embodiment shown in FIG. 1 is configured by combining a box-shaped length measuring unit 10 and a cutter unit 50.

  The length measuring unit 10 has a box-shaped housing 11 having an insertion path 12 for a hose (not shown in FIG. 1), and a hose inserted from an inlet (not shown in FIG. 1) of the insertion path 12 13 is drawn. This casing 11 has a built-in measuring mechanism. The length measuring mechanism measures the length of the hose that has passed through the insertion passage 12 of the housing 11 and displays the measured value. Although the specific configuration of the length measuring mechanism is not shown, the hose inserted through the insertion passage 12 of the housing 11 is brought into contact with the roller built in the housing 11 and moved in the axial direction. The amount of movement of the hose is calculated as a measured value from the number of rotations, and the measured value is displayed by the counter 14 in units of length. The length measurement unit 10 has a measurement value reset function for setting the measurement value as a reference value. This measurement value reset function is exhibited by pressing a reset button 15 provided in the length measurement unit 10. In this embodiment, the reference value is set to a numerical value displayed by the counter 14 shown in FIG. 4, specifically “000.00” m. The instrument having the length measuring mechanism and the measurement value reset function of the length measuring unit 10 described above is the reset disclosed by the intestinal function of the “hose length measuring instrument” described at the beginning and Patent Document 3 described at the beginning. It is possible to use the function.

  In this embodiment, the roller built in the housing 11 is used as a feed roller, and the length of the hose that has passed through the insertion passage 12 by rotating the feed roller forward and backward to advance and retract the hose. As shown in FIG. 2 or FIG. 3, the casing 11 is equipped with a rotary operation knob 16 for adjusting the increase / decrease.

  The cutter unit 50 includes a receiving blade 52 and a cutting blade 54 that can be opened and closed between an open position with respect to the receiving blade 52 and an overlapping closed position. In this embodiment, a hose cutting rod 51 having the same basic structure as a widely sold hose cutting rod is used as the cutter unit 50. As is apparent from FIG. 1, the hose cutting rod 51 is provided with the receiving blade 52 and the cutting blade 54 on each of the two handles 56 and 57 that are connected to each other through one fulcrum 55 so as to be opened and closed. Are connected separately. Therefore, when the two handles 56 and 57 are grasped by hand and swung in the closing direction, the cutting blade 54 is moved from the open position shown in the figure to the closed position where it overlaps the receiving blade 52. Reference numeral 58 denotes a return spring that constantly urges the two handles 56 and 57 and the receiving blade 52 and the cutting blade 54 in the opening direction.

  The hose cutting rod 51 as the cutter unit 50 has a receiving blade 52 fixed to the housing 11 via a fixture 60. The cutting edge 59 of the receiving blade 52 is formed in a planar shape having a certain width. And the exit 13 of the insertion path 12 faces the open space S formed between the receiving blade 52 and the cutting blade 54 at the open position. 1, the cutting edge 59 of the receiving blade 52 faces the lower end of the outlet 13 from the front side at the same height as the lower end of the outlet 13 of the insertion path 12 of the housing 11. Is positioned. When the cutting edge 59 of the receiving blade 52 is positioned in this way, the hose sent out through the insertion path 12 naturally rides on the cutting edge 59.

  Next, the state of use will be described. As shown in FIG. 2, the cutting blade 54 of the hose cutting rod 51 is closed as shown by the arrow D to be in the closed position, inserted into the insertion passage 12 of the housing 11 and pulled out from the outlet 13 thereof. The tip 101 is brought into contact with the side surface of the cutting blade 54 as shown in the figure, and the reset button 15 is pushed in this state. When this reset operation is performed, the numerical value displayed by the counter 14 is reset to the reference value, and the numerical value displayed by the counter 14 as shown in FIG. 4 becomes the reference value “000.00” m.

  Next, as shown in FIG. 3, the cutting blade 54 of the hose cutting rod 51 is opened to the open position as indicated by an arrow U, and then the hose 100 is pulled out through the open space S between the receiving blade 52 and the cutting blade 54. . In this way, the hose 100 rides on the planar cutting edge 59 of the receiving blade 52 and is pulled out as indicated by an arrow P, and the length L of the hose 100 that has passed through the insertion path 12 of the housing 11 is measured. The measured value is displayed on the counter 14. Therefore, for example, when it is desired to manufacture a hose having a length of 1 m, it is confirmed that the display of the counter 14 shown in FIG. 4 indicates “001.00” m, and when the numerical value is displayed, the hose 100 is pulled out. The hose 100 is cut by stopping and closing the cutting blade 54 of the hose cutting rod 51. In this case, when the numerical value displayed by the counter 14 slightly exceeds the length of the hose 100 to be manufactured, or conversely, when the length of the hose 100 to be manufactured is slightly short, the rotary operation knob 16 The numerical value displayed by the counter 14 can be made to exactly match the length of the hose 100 to be manufactured by rotating the feed roller forward and backward by operating.

  According to this embodiment, the operator can, for example, send the hose 100 to the insertion passage 12 with the left hand and pull it out from the outlet 13 and operate the hose cutting rod 51 with the right hand to cut the hose 100 with ease. . Further, since the cutting edge 59 of the receiving blade 52 is positioned at a position where the hose 100 sent through the insertion passage 12 rides up, the hose 100 is not only smoothly drawn out from the insertion passage 12 but also received by the receiving blade 52. Since the hose 100 that is supported by riding on the cutting edge 59 of the blade 52 is cut with the hose cutting rod 51, the hose having a predetermined length can be quickly and easily formed without being twisted or bent during cutting. Can be manufactured with high accuracy, and variations in the finish of the cut portion are reduced. This action is more remarkably exhibited when the cutting edge 59 of the receiving blade 52 is formed in a planar shape.

  Furthermore, the hose cutter of the embodiment has the convenience that the length measuring unit 10 and the hose cutting rod 51 are integrated, so that they can be easily carried to the working position as one instrument. can get.

  The hose cutter according to the present invention can be used not only when the hose is made of resin but also when it is made of rubber. Of course, a hose made of a resin or rubber tube can be used in the same manner.

DESCRIPTION OF SYMBOLS 10 Measuring unit 11 Housing | casing 12 Insertion path 13 Exit of insertion path 15 Reset button 16 Rotation operation knob 50 Cutter unit 51 Hose cutting rod 52 Receiving blade 54 Cutting blade 55 Support point 56,57 Handle 59 Receiving blade edge 100 Hose S Open space

Claims (4)

A length-measuring unit that has a built-in length-measuring mechanism that measures the length of a hose that has passed through the insertion path and displays the measured value in a housing having a hose insertion path, a receiving blade, and an opening to the receiving blade And a cutter unit having a cutting blade that can be opened and closed between the position and the overlapping closed position,
The receiving blade of the cutter unit is fixed to the housing of the length measuring unit, and the outlet of the insertion path faces an open space formed between the receiving blade and the cutting blade at the open position. And the cutting edge of the said receiving blade is positioned in the position which the hose sent out through the said insertion path rides up, The portable hose cutter characterized by the above-mentioned.   The length measuring unit has a measured value reset function for setting the measured value in a state in which the tip of the hose sent out through the insertion passage is in contact with the side surface of the cutting blade in the closed position as a reference value. The portable hose cutter according to claim 1, comprising:   The said cutter unit consists of a hook for cutting a hose in which the receiving blade and the cutting blade are separately connected to each of two handles connected to each other through a fulcrum so as to be opened and closed. The portable hose cutter according to claim 2.   A feed roller that contacts the hose inserted in the insertion path of the housing is built in, and the length of the hose that has passed through the insertion path is increased or decreased by rotating the feed roller forward and backward to advance and retract the hose. The portable hose cutter according to any one of claims 1 to 3, wherein a rotation operation knob for adjustment is provided in the casing.

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