JP2012013623A - Measurement method and tape measure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape measure capable of stably measuring without buckling when a tape-shaped scale is pulled out.SOLUTION: When measuring the distance to a remote location by using a tape measure with a tape-shaped scale 13, maintaining members 32 for maintaining a state that a cross section of the tape-shaped scale 13 is arcuately bent so as to be concaved upward are installed at predetermined intervals while pulling out the tape-shaped scale 13. Then, a tip of the tape-shaped scale is brought to the remote location to perform measurement.

Description

  The present invention relates to a measurement method using a convex and a convex.

  A small tape measure called a convex is provided with a tape-like scale wound around a casing by a spiral spring, and a hook is provided at the tip thereof. The cross section of the tape scale is curved, and the scale is displayed on the concave surface. A hook that is a flat plate having the same width as the tape-like scale is attached to the tip of the tape-like scale and bent vertically, and there are a fixed type and a movable type. In the fixed type, the hook is fixed to the tip of the tape-like scale, and the part bent vertically is hooked on the object to be measured. In the mobile type, the hook is attached to the tip of the tape scale, but it is slid in the tape scale's pull-out direction to correct the reference point by the thickness of the hook and is bent vertically. The portion is hooked on or pressed against the object to be measured (for example, see Patent Document 1).

  When actually measuring the length of the plate using this convex, hook the hook to one end of the plate, pull the housing to the other end, read the scale on the other end, The length to the end can be measured. Also, when measuring the distance between the opposite wall surfaces, pull the housing to the other wall surface while pressing the vertical bent part of the hook on one wall surface and read the scale on the other wall surface. The distance between the opposing wall surfaces can be measured.

  As described above, convexes are used in various places such as construction sites, manufacturing sites, and homes as measuring tools that are small and easy to carry.

Japanese Utility Model Publication No. 06-082501

  As described above, there is a problem in that the convex structure is small and convenient to carry in the overhead line construction between the tower and the electric wire at a high place where the operation range is limited while being used in various places. Convex's tape-shaped scale has a concave cross-section and is difficult to bend.However, if it is pulled out of the casing for a long time, it will be bent in the direction of gravity due to its own weight, etc. There was a problem.

  In view of such circumstances, the present invention, when pulling out a tape-like scale from the housing, can be pulled out and measured without being bent due to its own weight, etc. The objective is to provide a convex that can be measured.

  A first aspect of the present invention that achieves the above object is a circle having a concave cross-section upward while pulling out the tape-like scale when measuring the distance to a remote place using a convex having the tape-like scale. In the measuring method, a holding member that holds the bent state in an arc shape is installed at predetermined intervals, and the tape-shaped scale tip part reaches a remote place for measurement.

  According to this aspect, the holding members are installed at predetermined intervals in the width direction of the tape-like scale, and the strength against bending in the gravitational direction is maintained by holding the bent state in an arc shape in which the cross section is concave upward. The tip of the tape scale can reach a remote location.

  And the 2nd aspect of this invention is wound in the housing | casing in the spiral shape, the tape-shaped scale provided so that drawing | extracting accommodation is possible, and it attaches to the said tape-shaped scale so that attachment or detachment is possible, The cross section of the said tape-shaped scale And a holding member that holds the bent state in a circular arc that is concave upward at predetermined intervals.

  According to this aspect, the cross section of the curved tape-shaped scale drawn out from the housing can be held in a state of being bent into a circular arc that is concave upward at predetermined intervals.

  According to a third aspect of the present invention, in the convex described in the second aspect, an electric wire pressing portion that extends in a direction perpendicular to the tape-shaped scale pull-out direction provided at the tip of the tape-shaped scale, and the tape And an electric wire holding portion extending in an extending direction with respect to the direction of drawing out the scale.

  According to this aspect, when the distance from the outer peripheral portion of the electric wire is measured by contacting the electric wire pressing portion and the electric wire holding portion with the electric wire in the remote place, the measurement reference position can be set stably. .

  According to a fourth aspect of the present invention, in the convex described in the third aspect, the electric wire holding portion is rotatably attached to the electric wire pressing portion, and is orthogonal to the tape scale drawing direction. The convex is held at a first position which is a direction and a second position which is an extension direction with respect to the tape scale drawing direction.

  According to this aspect, when the convex is used, the electric wire holding part can be held in the opened second position, and when the convex is not used, the electric wire holding part can be held in the closed first position.

  According to a fifth aspect of the present invention, in the convex described in any one of the second to fourth aspects, the casing includes a storage portion that stores the holding member.

  According to this aspect, the holding member can be stored in the storage unit.

  In addition, a sixth aspect of the present invention is the convex described in the fifth aspect, wherein either the storage portion or the holding member includes a magnet, and the other includes a magnetic body. It is in the convex.

  According to this aspect, it is possible to hold the holding member that holds the state in which the cross section of the tape-like scale is bent in an arc shape that is concave upward in the storage portion.

  In the present invention, while pulling out the tape-like scale, the state in which the cross-section of the tape-like scale is bent upwardly into a concave arc shape is held by the holding member at every predetermined interval, thereby increasing the strength against bending in the direction of gravity. The distance to the object to be measured can be measured stably and accurately without breaking the waist.

It is a perspective view of a convex concerning one embodiment of the present invention. It is an exploded perspective view of a convex concerning one embodiment of the present invention. It is explanatory drawing of the tape-shaped scale front-end | tip part which concerns on the convex based on one Embodiment of this invention. It is use explanatory drawing of the tape-shaped scale and holding member which concern on the convex concerning one Embodiment of this invention. It is explanatory drawing of the convex to which the holding member which concerns on one Embodiment of this invention was attached. It is explanatory drawing of the work environment in the overhead wire construction which concerns on one Embodiment of this invention.

Hereinafter, the present invention will be described in detail based on embodiments.
1 is a perspective view of a convex according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the convex according to an embodiment of the present invention, and FIG. 3 is a tape-like scale according to the convex according to the embodiment of the present invention. Explanatory drawing of a front-end | tip part, FIG. 4 is use explanatory drawing of the tape-shaped scale and holding member which concern on the convex based on one Embodiment of this invention.

  The housing 10 in the convex 1 has two housing structures of a lid 10a and a receiving body 10b, and an outlet 14 is provided at an appropriate position on each side surface. In the receiving body 10b, the spiral spring 12 is perpendicular to the center of the bottom of the housing. A mounting shaft 11 for mounting is projected.

  As shown in FIG. 2, the spiral spring 12 has one end at the center of the spiral fixed to the mounting shaft 11 and the other end outside the spiral wound with a tape scale 13 in the same direction as the spiral spring. The elastic force of the spiral spring 12 is acting so that the tape scale 13 is wound around the mounting shaft 11 at all times. Since this elastic force is necessary and sufficient to draw the tape-shaped scale 13 into the housing 10, when the tape-shaped scale 13 is housed in the housing 10 as shown in FIG. Due to this elastic force, the hook 16 provided at the tip of the tape-shaped scale 13 is pulled in until it stops at the outlet 14. When the tape scale 13 is pulled out from the housing 10, the tape scale 13 can be pulled out while maintaining the elastic force of the spiral spring 12 as shown in FIG. It is pulled in as shown in (a).

  As shown in FIG. 4 (a), the tape-like scale 13 is always concavely curved upward, and is difficult to bend in the gravity direction due to its own weight when the concave surface is pulled upward. Further, a scale 15 is provided on the concave surface, and the scale 15 is read at the time of measurement to measure the distance. As shown in FIG. 3 (a), a hook 16 that is bent vertically is attached to the tip of the tape-like scale 13, and the electric wire pressing portion 20 is bonded to the hook 16 with an adhesive or a pin. A convex portion 20 a is projected from the center of the end of the wire pressing portion 20. The surface of the electric wire pressing portion 20 is attached so as to be flush with the surface of the tape-shaped scale 13, and the convex portion 20 a protruding from the center of the end of the electric wire pressing portion 20 is formed on the tape-shaped scale 13. It is provided in the extension direction. On the other hand, the electric wire holding part 21 has a notch part 21a fitted to the convex part 20a at one end part, and a convex part 21b projecting in a direction perpendicular to the notch part 21a at the other end part. ing. The electric wire holding portion 20 and the electric wire holding portion 21 are rotated by a pin 23 that penetrates both of the protruding portions 20a projecting from the electric wire holding portion 20 and fitted into the notch portion 21a of the electric wire holding portion 21. It is linked movably. In addition, when the electric wire holding part 21 rotates in the opening direction, the surface of the tape-shaped scale 13 and the surface of the electric wire holding part 21 are flush with each other (see FIG. 3B).

  When the tape-like scale 13 is pulled into the housing 10, as shown in FIG. 3 (a), the electric wire holding part 21 is rotated to the storage state (first position) where it is overlapped in parallel with the electric wire pressing part 20. It is held in motion. In this state, the convex portion 21b is engaged with the distal end portion of the electric wire pressing portion 20, and the electric wire holding portion 21 is held at the first position.

  When the tape-shaped scale 13 is pulled out from the housing 10 and used, as shown in FIG. 3B, the electric wire holding part 21 is rotated in the opening direction, and the surface of the tape-shaped scale 13 and the electric wire holding part 21 are A use state in which the surface is flush with the surface is set (second position). In this state, the end surface of the electric wire holding portion 21 on the side of the notch portion 21a is held in contact with the hooking tool 16, and the electric wire holding portion 21 is prevented from further rotating. Thus, after rotating the electric wire holding part 21 in the opening direction and holding it in the second position, the lower surface of the electric wire holding part 21 is placed on the electric wire 22 as shown in FIG. Thereby, the electric wire 22 is hold | maintained between the electric wire pressing part 20 and the convex part 21b, and the electric wire 22 does not come off easily by the convex part 21b. Further, as shown in FIG. 3D, by bringing the wire pressing portion 20 into contact with the electric wire 22, the distance from the outlet 14 (see FIG. 1) to the front side of the outer peripheral portion of the electric wire 22 is reduced. It can be measured accurately without including the thickness of.

  In addition, although this embodiment demonstrated that each edge part of the electric wire pressing part 20 and the electric wire holding | maintenance part 21 was connected with the pin 23 so that rotation was possible, it attaches a hinge to each edge part so that it can open and close Anyway. The wire pressing unit 20 and the wire holding unit 21 may be quadrangular, round, or triangular as long as the surfaces in contact with the electric wires 22 are flat. Moreover, since it pulls out without supporting the tape-shaped scale 13, it becomes the minimum magnitude | size required for hold | maintaining the electric wire 22. FIG. The electric wire holding portion 21 and the electric wire holding portion 21 may be an integral L-shaped holding portion without making the electric wire holding portion 21 rotatable.

  The holding member 32 wound around the tape-shaped scale 13 shown in FIG. 5 is a string in which the wire 33 is coated with vinyl 34 as shown in FIG. 4B, and has a magnet 31 at one end. This holding member 32 twists and restrains the wound tip, and as shown in FIG. 4 (c), the holding member 32 tightens the width direction of the tape-shaped scale 13 and the cross section is concave upward. It is held in a state bent in an arc shape. Here, the bent state is a state in which the original curved state is further curved. The holding member 32 only needs to be able to hold the tape-like scale 13 in a state of being bent into a concave arc shape, and may be a wire having a holding force or a clip-like one. And the holding member 32 has the magnet 31, and can be hold | maintained in the accommodating part 30 (refer FIG. 1) which is a magnetic body. In this embodiment, the holding member 32 has the magnet 31 and the storage portion 30 is described as a magnetic body. However, the present invention is not limited to this, and the holding member 32 is a magnetic body and the storage portion 30 has the magnet 31. It is sufficient that the holding member 32 is a magnetic body, the casing 10 has the magnet 31 without the storage portion 30, and the holding member 32 can be held by the casing 10.

  Hereinafter, an example of a measurement method for measuring a distance to a separated position using the convex of the present embodiment will be described. First, as shown in FIG. 3B, the electric wire holding part 21 is held at the second position on the extension of the tape-like scale 13, and the tape-like scale 13 is pulled out from the housing 10 so that the concave surface is on the upper side. . At this time, the holding member 32 held in the storage portion 30 is held at a predetermined interval so that the cross section of the tape-like scale 13 is bent in a concave arc shape as shown in FIG. Each time, the tape-shaped scale 13 is tightened in the width direction.

  Then, as shown in FIG. 5, the tape-shaped scale 13 is pulled out to the electric wire 22 that is the object to be measured while the holding member 32 is tightened in the width direction of the tape-shaped scale 13 at predetermined intervals. By pulling out the tape-like scale 13 while attaching the holding member 32 in this way, the tape-like scale 13 can be pulled out without being bent, and the wire holding portion 21 is mounted on the wire 22 as shown in FIG. Can be placed. Further, as shown in FIG. 3D, the electric wire pressing portion 20 is pressed against the electric wire 22 while the electric wire holding portion 21 is placed on the electric wire 22. As a result, the electric wire 22 comes into contact with the electric wire holding portion 21 and the electric wire pressing portion 20, and the measurement reference position of the tape-like scale 13 is set in a stable state. At this time, the tape-like shape coming out from the housing 10 at hand. By reading the scale 15 of the scale 13, the distance from the electric wire 22 can be measured stably and accurately.

  After the measurement, with the concave surface of the tape-shaped scale 13 facing upward, the housing 10 on the hand is tilted slightly upward so that the tape-shaped scale 13 does not fold down, so that the electric wire holding part 21 is lifted from the electric wire 22 and the tape-shaped scale 13 I will pull in. At this time, the holding member 32 holding the tape-shaped scale 13 in a state where the cross section of the tape-like scale 13 is bent in a concave arc shape is removed and held in the storage unit 30. The tape-like scale 13 from which the holding member 32 has been removed becomes a normal curved state as shown in FIG. Then, as shown in FIG. 3 (a), when the hook 16 is retracted until it stops at the outlet 14, the wire holding portion 21 is closed and held at the first position.

  The measurement method using the convex 1 described above has the following effects.

  By turning the holding member 32 in the width direction of the tape-shaped scale 13 at predetermined intervals while pulling out the tape-shaped scale 13 with the concave surface of the tape-shaped scale 13 having a curved cross-section facing upward, Further, by holding the bent state in the shape of a concave arc, when the holding member 32 is not used, even if the tape-shaped scale 13 is pulled out to such a length that the waist is bent, the waist can be prevented from being folded. . Furthermore, the distance between the housing 10 and the electric wire 22 can be accurately measured without including the thickness of the electric wire 22 by holding and pressing the measurement object by the electric wire holding portion 21 and the electric wire pressing portion 20. it can. And in the case of using the convex 1 in the overhead line construction of the tower 40 and the electric wire 22 at a high place as shown in FIG. 6, without tightening the waist by tightening the holding member 32 in the width direction of the tape-shaped scale 13, The tape-like scale 13 can be pulled out stably. Moreover, the electric wire holding part 21 and the electric wire pressing part 20 hold | maintain the electric wire 22, and can measure the distance of the housing 10 and the electric wire 22 correctly, without including the thickness of the electric wire 22, by pressing. it can. In addition, in this embodiment, although distance measurement of the housing 10 and the electric wire 22 by the convex 1 was demonstrated, not only the electric wire 22 but a measuring object other than the electric wire 22 can also be used.

  The present invention can be used in an industrial field that requires distance measurement using a convex.

DESCRIPTION OF SYMBOLS 10 Housing | casing 10a Cover 10b Receptacle 11 Attachment axis | shaft 12 Spiral spring 13 Tape scale 14 Outlet 15 Scale 16 Hook 20 Wire pressing part 20a Convex part 21 Electric wire holding part 21a Notch part 21b Convex part 22 Electric wire 23 Pin 30 Storage unit 31 Magnet 32 Holding member 33 Wire 34 Vinyl 40 Steel tower

Claims (6)

When measuring a distance to a remote place using a convex having a tape-like scale, a holding member that holds the bent state in an arc shape with a transverse cross-section upward while pulling out the tape-like scale is set at a predetermined interval. A measuring method, characterized in that it is installed every time and the tip of the tape-shaped scale reaches a remote place for measurement. A tape-like scale that is spirally wound inside the housing and is provided so as to be able to be pulled out and stored, and a circle that is detachably attached to the tape-like scale, and that has a cross section that is recessed upward at predetermined intervals. And a holding member that holds the bent state in an arc shape. The convex according to claim 2,
It comprises an electric wire pressing portion that extends in a direction perpendicular to the tape-shaped scale pull-out direction, and an electric wire holding portion that extends in an extension direction with respect to the tape-shaped scale pull-out direction. Convex. The convex according to claim 3,
The electric wire holding part is rotatably attached to the electric wire pressing part, and is a first position that is orthogonal to the tape scale drawing direction and an extension direction that is an extension direction with respect to the tape scale drawing direction. Convex characterized by being held in two positions. In the convex according to any one of claims 2 to 4,
The convex has a housing portion in which the housing houses the holding member. The convex according to claim 5,
One of the storage part and the holding member includes a magnet, and the other includes a magnetic body.

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