JP7373461B2 - Bending tools and display members - Google Patents

Description

The present invention relates to a bending tool used for bending an elongated member such as an elongated member, and a display member used for confirming the angle of the elongated member bent by the bending tool.

BACKGROUND ART Conventionally, when bending a long member, a bending tool has been used because there is a limit to bending with bare hands. As a bending tool used in this bending work, there is a bending tool described in Patent Document 1. The bending tool of Patent Document 1 has a curved part and a locking part at the tip of the shaft, and holds the elongated member so as to intersect with the shaft and bends the elongated member using the principle of leverage. is possible.

Japanese Patent Application Publication No. 2016-209927

When bending a long member, it is generally necessary to check the bending angle after bending. In this regard, the bending tool described in Patent Document 1 does not mention any method for checking the bending angle, and there is room for improvement.

The present invention has been made to solve the above problems, and its main purpose is to provide a bending tool that can bend a long member and that can easily check the angle after bending. It is in.

The first configuration is a bending tool used for bending an elongated member, which is provided with a shaft having a first direction as its axis, and a lateral side on one end side with respect to the shaft, a bent portion that is recessed toward the axis and is open at both ends in a direction intersecting the first direction; A display unit that displays an angle with respect to the first direction.

In the first configuration, since the bending portion is provided in a direction intersecting the axis, the elongated member can be bent using a lever. In addition, since the display section is provided on the outer surface on the opposite side of the bending part, the bending angle can be checked without changing the orientation of the bending part after the bending tool is removed from the elongated member. . Therefore, it becomes possible to perform the bending process and the angle confirmation process in rapid succession, and it is possible to improve the efficiency of the bending operation of the elongated member. In addition, when bending a long member at multiple locations, you can check the angle of each bent location, and even when bending a long member at multiple locations to form a three-dimensional shape, You can check each angle.

In a second configuration, in addition to the first configuration, the display section includes a straight line display that is a straight line indicating the first direction, and an angle display that is a straight line inclined from the straight line display.

In the second configuration, the bending angle can be confirmed by arranging the elongated member along the linear display and the angle display, so that the bending angle can be confirmed intuitively.

In a third configuration, in addition to the first or second configuration, the display section is provided in a detachable manner.

In the third configuration, the display section can be changed depending on the angle required for the bending operation, the diameter of the elongated member that is the object of the bending operation, and the like.

A fourth configuration, in addition to any one of the first to third configurations, further includes an indicator indicating the mounting direction of the display unit, and the angle display unit is attached in accordance with the indicator.

With the fourth configuration, it is possible to suppress angular deviation with respect to the first direction when attaching the display section.

A fifth configuration includes a shaft whose axis is in the first direction, and a shaft provided on one end side of the shaft, recessed toward the shaft center, and in a direction intersecting the first direction. a bending part with both ends open, and a display member that can be attached to the end side of a bending tool opposite to the side where the bending part is provided, the display member being attached to the side opposite to the side where the bending part is provided, It includes a display section that displays the angle.

If the display member of the fifth configuration is used, the display part can be replaced in the bending tool of the first configuration, so if the angle of the display part is different from the angle required for bending the elongated member, or the display part is If the display member deteriorates, the display member can be changed. Moreover, if the display member according to the sixth configuration is attached to a bending tool that does not have a display section, it is possible to obtain a bending tool that has an effect similar to that of the first configuration.

It is a perspective view of a bending tool. It is a perspective view of a bending tool from another direction. It is a front view of a bending tool. FIG. 3 is a rear view of the bending tool. It is a side view of a bending tool. It is a top view of a bending tool. FIG. 3 is a bottom view of the bending tool. FIG. 3 is an enlarged front view of the holder part. It is a figure showing the relationship between a holder part and a display part. FIG. 3 is a rear view illustrating how to bend the elongated member. It is a front view explaining the confirmation method of the bending angle of an elongate member.

A bending tool 10 according to this embodiment will be explained with reference to FIGS. 1 to 8. The bending tool 10 according to this embodiment is used for bending long members such as wire rods and pipe materials. The overall shape of the bending tool 10 is elongated, and the longitudinal direction is defined as the up-down direction. Further, the side that is visible when a person holds it is defined as the front side.

The bending tool 10 includes an elongated cylindrical shaft portion 20 that extends in the vertical direction. The cross-sectional shape of this shaft portion 20 is circular, and the shape is substantially the same in the vertical direction (longitudinal direction). Further, the material of the shaft portion 20 is not particularly determined, but since it is used for bending a long member, it is made of metal such as stainless steel or steel, for example.

A long handle portion 30 extending in the vertical direction is provided at the lower end side of the shaft portion 20. The handle portion 30 has a cylindrical shape with a bottom, and the inner diameter is approximately equal to the outer diameter of the shaft portion 20, and the outer diameter is approximately constant over the longitudinal direction. Then, the shaft portion 20 is inserted into the handle portion 30, and the shaft portion 20 and the handle portion 30 are connected by screwing or the like. Note that the material of the handle 30 is not particularly specified, but since it is a part that is held by a person, it is preferably made of a material that has a certain anti-slip effect, such as rubber.

A holder portion 40 is provided at the upper end of the shaft portion 20 . The outer shape of the holder part 40 is a cylinder whose central axis is in the front-rear direction, and the diameter of the cylinder is larger than the diameter of the shaft part 20. This holder part 40 is integrally molded with a cylindrical connecting part 41 whose inner diameter is approximately equal to the outer diameter of the shaft part 20, and is connected to the shaft part 20 by inserting the shaft part 20 into the connecting part 41. ing.

A bent portion 42 is provided on the back side of the holder portion 40 and is recessed toward the front side and is open on both left and right sides. A bent portion center 43, which is near the center of the bent portion 42 in the left-right direction, is provided from the center in the left-right direction to each predetermined position in the left-right direction. This bent portion center 43 is constituted by a pair of planes that face each other in the vertical direction and a curved surface that connects the front sides of the planes and has an arc shape when viewed from the side. A right end 44 of the bent portion is formed on the right end side of the center 43 of the bent portion, and includes a pair of curved surfaces that are gradually spaced apart in the vertical direction, and a curved surface that connects the front sides of the curved surfaces and has an arc shape when viewed from the side. ing. Similarly, on the left end side of the bending part center 43, a left end 45 of the bending part is composed of a pair of curved surfaces that are gradually spaced apart in the vertical direction, and a curved surface that connects the front sides of the curved surfaces and has an arc shape when viewed from the side. is formed.

A depression 46 is provided on the front surface of the holder portion 40, which is circular when viewed from the front and has a substantially uniform depth. An indicating portion 47 recessed upward is provided on the circumferential surface of the upper end of the recess 46 . The position of this indicator portion 47 is located on the extension line of the axis of the shaft portion 20 in plan view. A display section 50 is attached to the depression 46, as shown in FIG. This display section 50 is a circular sheet whose back surface is coated with an adhesive, and when attaching the display section 50 to the recess 46, the upper end of the display section 50 is made to approximately coincide with the position of the instruction section 47. paste.

On the display section 50, a right-side straight line display 60, which is a straight line parallel to the front-back direction, is displayed by printing or the like, slightly to the right of the center in the front-back direction. Linear right side first to fifth angle indications 61 to 65 are displayed by printing or the like so as to branch from this right side straight line indication 60. The right side first angle display 61 is a line segment extending to the right so that the angle with the right side straight line display 60 is 30°, and is connected to the right side straight line display 60 by an arcuate line. A first numerical display 61a on the right side, which is a numerical display indicating the angle of 30°, is provided by printing or the like along the upper side of the line segment.

Similarly, the right side second to fifth angle displays 62 to 65 are line segments extending to the right such that the angles with the right straight line display 60 are 45°, 60°, 75°, and 90°, respectively. The straight line display 60 is connected by an arcuate line. Second to fifth numerical displays 62a to 65a on the right side, which numerically indicate the angles 45°, 60°, 75°, and 90°, are provided by printing or the like along the upper side of each line segment. ing.

On the display section 50, a left straight line display 70, which is a straight line parallel to the front-back direction, is displayed by printing or the like, slightly to the left of the center in the front-back direction. Linear left first to fifth angle displays 71 to 75 are displayed by printing or the like so as to branch from this left straight line display 70. The left first angle display 71 is a line segment extending to the left so that the angle with the left straight line display 70 is 30 degrees, and is connected to the left straight line display 70 by an arc-shaped line. A first numerical display 71a on the left side, which is a numerical display indicating the angle of 30°, is provided by printing or the like along the upper side of the line segment.

Similarly, the left side second to fifth angle displays 72 to 75 are line segments extending to the left so that the angles with the left straight line display 70 are 45°, 60°, 75°, and 90°, respectively. The straight line display 70 is connected by an arcuate line. Second to fifth numerical displays 72a to 75a on the left side, which numerically indicate the angles 45°, 60°, 75°, and 90°, are provided by printing or the like along the upper side of each line segment. ing.

As described above, since the right side straight line display 60 and the right side first to fifth angle displays 61 to 65 are provided, the right side straight line display 60 is a straight line along the direction in which the shaft portion 20 extends, and the right side first to fifth angle displays 61 to 65 are provided. The fifth angle displays 61 to 65 indicate angles clockwise from the direction in which the shaft portion 20 extends. Similarly, the left straight line display 70 is also a straight line along the extending direction of the shaft portion 20, and the left side first to fifth angle displays 71 to 75 indicate angles counterclockwise from the extending direction of the shaft portion 20. That will happen.

A method of using the bending tool 10 described above to bend a long member 100 to be bent will be described with reference to FIGS. 10 to 12. Note that FIGS. 10 to 12 show examples of curving to the right at an angle of 60° when viewed from the front. At this time, as the elongated member 100 to be bent, a member whose diameter is approximately equal to the width of the bending part center 43 or smaller than the width of the bending part center 43 is used. In other words, it can be said that the internal space of the bent portion 42 is larger than the outer diameter of the elongated member 100.

First, the elongated member 100 is arranged so as to be sandwiched between the bending part center 43 of the bending part 42 . At this time, as shown in FIG. 11, the elongated member 100 contacts the curved surface of the left end 45 of the bent portion at the upper side, and the curved surface of the right end 44 of the bent portion at the lower side. At this time, the handle 30 etc. act as a point of effort, the left end 45 of the bending part acts as a fulcrum, and the right end 44 of the bending part acts as a point of action to bend the elongated member 100 using the principle of leverage. be able to.

After bending the elongated member 100, the elongated member 100 is removed from the bending tool 10, and the bending angle of the elongated member 100 is confirmed using the display section 50. At this time, the linear portion of the elongated member 100 is located directly below the shaft portion 20 so as to substantially match the extending direction of the shaft portion 20, and the bent portion of the elongated member 100 is located at the holder portion. The elongated member 100 is arranged directly below the bending tool 10 so as to be located approximately directly below the bending tool 40. After adjusting the positional relationship between the bending tool 10 and the elongated member 100 in this way, the position beyond the bent part of the elongated member 100 is on the right side indicating that the elongated member 100 has been bent by 60 degrees to the right. It is confirmed whether or not it substantially matches the third angle display 63. At this time, if the position of the elongated member 100 is toward the second angle display 62 on the right side, the bending is insufficient and it is sufficient to perform further bending work. On the other hand, if the position of the elongated member 100 is toward the fourth angle display 64 on the right side, it means that the elongated member 100 is bent too much, and the bending angle may be slightly corrected.

Note that the method of using the bending tool 10 described above is just an example, and when bending a long member at multiple locations, it is possible to check the angle of each bent location, and also to bend the long member at multiple locations. Even when bending at multiple locations to form a three-dimensional shape, the angle of each bent location can be confirmed.

With the above configuration, the bending tool 10 according to the present embodiment has the following effects.

- Since the bending portion 42 is open in the direction intersecting the shaft portion 20, the elongated member 100 can be bent using a lever. In addition, since the display section 50 is provided on the outer surface of the holder section 40 on the side opposite to the side on which the bending section 42 is provided, the direction of the bending tool 10 can be changed after the bending tool 10 is separated from the elongated member. You can check the bending angle without changing it. Therefore, it becomes possible to perform the bending process and the angle confirmation process in rapid succession, and it is possible to improve the efficiency of the bending operation of the elongated member.

- Since the straight line indicators 60, 70 and angle indicators 61 to 65, 71 to 75 are linear, the bending angle can be confirmed by placing the elongated member 100 along them, and the bending angle can be confirmed. can be done intuitively.

- Since the shape of the internal space of the bending portion 42 is larger than the outer shape of the elongated member 100, it can be used for bending work of various elongated members having different cross-sectional shapes.

- Since the display section 50 is detachable, the display section 50 can be changed depending on the angle required for the bending operation, the diameter of the elongated member 100 that is the object of the bending operation, etc.

- Since the indicator part 47 is provided, when the display part 50 is attached, it is possible to suppress the angular deviation with respect to the first direction.

- Since the display part 50 is a seal, the display part can be replaced, and if the angle of the display part 50 is different from the angle required for bending the elongated member 100 or the display part 50 deteriorates. In this case, the display unit 50 can be replaced.

- The straight line displays 60, 70 on the display unit 50 and the angle displays 61-65, 71-75 are connected by arc-shaped lines, and the curved part of the elongated member 100 to be bent is also arc-shaped. Because of this, the angle can be adjusted intuitively.

<Modified example>
- Although the bent portion 42 of the holder portion 40 is assumed to be open on both sides in the direction orthogonal to the first direction, which is the longitudinal direction (vertical direction) of the shaft portion 20, it is not necessarily opened on both sides in the orthogonal direction. It is not necessary, and due to the nature of utilizing the principle of leverage, it is sufficient that the openings are opened on both sides in the direction intersecting the first direction.

- In the embodiment, the bent portion 42 has a shape that is concave toward the axial direction and beyond the extension line of the axial center; It may be recessed to the extent that it does not. In either case, since the bent portion 42 can hold the elongated member 100 in a direction different from the first direction, which is the axial direction of the shaft 20, the elongated member 100 can be It can be used to curve.

- In the embodiment, the vertical width of the bent portion 42 of the holder portion 40 is constant near the center on the left and right, and gradually widens toward the left and right ends, but the vertical width is constant until the left and right ends. Various changes can be made to the shape, such as narrowing the range where the vertical width is constant. Furthermore, the shape of the front end of the bent portion 42 may not be arcuate but may be planar. That is, it does not have to be U-shaped in side view.

- In the embodiment, the bent portion 42 is provided on the holder portion 40 attached to the shaft portion 20, but the bent portion may be provided directly on the side surface of the shaft portion 20. In this case, it can be said that the shaft section 20 includes a holder section, or that the shaft section 20 also functions as a holder section.

- In the embodiment, the bending part 42 of the holder part 40 has an internal space larger than the outer diameter of the elongated member to be bent. It may be an internal space.

- Although the outer shape of the holder portion 40 is approximately cylindrical, the shape is not limited to this. In other words, it is sufficient that it has a bent portion that is open at both left and right ends, and a display portion is provided on the side opposite to the side where the bent portion is provided.

- The position and shape of the indicating section 47 are merely examples, and various changes can be made as long as they serve as a reference when attaching the display section 50.

- In the embodiment, the first to fifth angle displays 61 to 65 and 71 to 75 are provided so that multiple angles can be confirmed on one display unit 50, but it is not necessary to limit the number of angle displays to any one of them. It's okay. In this case, it may be specialized for bending to the indicated angle. Furthermore, the number of angle displays and the angles corresponding to the angle displays can be changed in various ways. Furthermore, the angle may be displayed only on either the left or right side, or the angle display may be provided with different angles on each of the left and right sides.

- In the embodiment, the linear displays 60, 70 and the angle displays 61-65, 71-75 are linear, but various changes are possible, such as displaying them with dots, symbols, etc. That is, it is sufficient if there is a display indicating the angle from the first direction, which is the direction in which the shaft portion 20 extends.

- The display section 50 does not need to be a sticker with adhesive, and may be provided by printing or stamping directly on the top surface of the holder section 40. Alternatively, the display section 50 may be attached to the holder section 40 using screws or the like, or a structure in which a barb is provided on the top surface of the holder section 40 and the sheet-like display section 50 is engaged with the barb. You can also use it as Furthermore, one of the holder part and the display part 50 may be provided with a magnet, and the other may be made of iron, and the two may be attached by magnetic attachment.

- In the embodiment, the display section 50 is fixed to the upper surface of the holder section 40 as a seal, but it may be rotatable on the upper surface of the holder section 40. In this case, for example, a rotatable member may be provided on the upper surface of the holder portion 40, and the display portion 50 may be attached to, pasted on, or engraved on the member. Further, as described above, in the case where a barb is provided on the upper surface of the holder part 40 and the sheet-like display part 50 is engaged with the barb, the sheet-like display part 50 may be rotatably engaged. .

- A plurality of types of display parts 50 may be provided and used by replacing them depending on the required bending angle.

- In the embodiment, the display section 50 is circular, but it may have another shape such as a polygon.

- An angle display function may be provided by attaching a long sticker or the like to the holder portion 40 at a predetermined angle. Alternatively, a rotatable member like a clock hand may be provided in a recess of the holder, and the angle may be indicated by the position of the member.

- In the embodiment, the display section 50 is provided with the linear displays 60, 70 and the angle displays 61-65, 71-75, but the angle is checked by placing the elongated member 100 along the shaft section 20. Since the shaft portion 20 can be said to have the function of the linear indicators 60 and 70, the linear indicators 60 and 70 do not need to be provided.

・If a member similar to the display part 50 according to the embodiment or the display part 50 shown in each modification is attached to a bending tool that does not include the display part 50, an effect similar to the bending tool 10 according to the embodiment can be obtained. It is possible to obtain a bending tool that performs well.

Bending tool...10, Shaft part...20, Handle part...30, Holder part...40, Bending part...42, Indication part...47, Display part...50, Right straight line display...60, Right side 1st to 5th angle display... 61 to 65, left straight line display...70, left side 1st to 5th angle display...71 to 75

Claims (5)

A bending tool used for bending a long member,
an axis centered on the first direction;
a bent portion provided on one end side of the axis, recessed toward the axis, and open at both ends in a direction intersecting the first direction;
A bending tool, comprising: an angle display section that is provided on a side of the end portion opposite to a side where the bending section is provided, and that displays an angle with respect to the first direction. The angle display section is
a straight line display that is a straight line indicating the first direction;
The bending tool according to claim 1, further comprising an angular display that is a straight line inclined from the straight line display. The bending tool according to claim 1 or 2, wherein the angle display section is provided in a detachable manner. The bending tool according to any one of claims 1 to 3, further comprising an indicator indicating a mounting direction of the angle indicator, and the angle indicator is attached in accordance with the indicator. A shaft having a first direction as its axis, and a shaft provided on one end side of the shaft, recessed toward the shaft center, and open at both ends in a direction intersecting the first direction. A bending tool comprising: a bending portion;
A display member that can be attached to a side opposite to a side where the bent portion is provided on the end side,
A display member comprising an angle display section that displays an angle with respect to the first direction.

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