JP2009258043A - Measuring tape - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a measuring tape which one operator can not only measure long distance, but also not causing a trouble when rolling up is faced. <P>SOLUTION: In this measuring tape, a long-length ruler band 1 is rolled out from the state that winding is rolled round or is rolled round into the state that winding is rolled round. A temporary fixation means 2 is attached at a tip of this ruler band 1. The temporary fixation means 2 includes a projection piece 10 which is possible to change in directions both a downward posture which serves as the downward posture from the ruler band 1 which is rolled out and a horizontal posture which has the similar direction as a length direction of the ruler band 1, and a lock mechanism 20 which is locking the projection piece 10 at the downward posture and which is released the locking state by being pulled in order to roll round the ruler band 1 which is rolled out. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape measure that is drawn out from a state in which a long scale band with a scale is wound and wound up in a wound state. It relates to a tape measure that can be measured.

  The tape measure is provided with a long scale band with a scale, and a case (including only a combination of a plurality of rod-shaped members) stored in a state where the scale band is wound, Various types are provided according to the application. For example, when surveying a distance of 10 m or more, generally, two operators, a main worker and an assistant, use one tape measure. That is, the assistant holds the tip of the scale band, aligns the tip with the survey start point, the supervisor moves to the survey end point while pulling out the scale band, reads the scale, and records and collects the survey data.

  However, there are cases where one worker has to survey a distance of 10 m or more. In such a case, for example, one worker places a weight such as a stone at the tip of the graduation band at the survey start point, moves to the survey end point while pulling out the scale band, and returns to the survey start point after the survey. The weight placed at the end of the scale band must be removed. However, such work is troublesome and it cannot be said that work efficiency is good. In addition, when surveying without placing a weight on the tip of the scale band, one operator moves while pulling out the scale band, so that the tip of the scale band is displaced and the surveying accuracy may be lowered. .

  Therefore, Patent Document 1 discloses a tape measure with an auxiliary tool that enables even a single worker to measure a long distance. As shown in FIG. 10, this auxiliary measuring tape measure has a claw portion 102 attached to the tip of the scale band 101, and a claw holding portion 110 with a stop needle portion 111 protruding from the claw portion 102. . This tape measure with an auxiliary tool pulls the scale band 101 by fixing the stop needle portion 111 to a measuring object that can be stopped. Therefore, this tape measure with an auxiliary tool can measure a long measurement object even by one person.

Japanese Patent Laid-Open No. 10-253302

  In the tape measure with an auxiliary tool disclosed in Patent Document 1, since the stop needle portion 111 protrudes from the nail holding portion 110, when the drawn scale band 101 is taken up after measurement, the stop needle portion 111 is It may hit an object and cause trouble. For example, when the land is being surveyed, it is difficult to wind up the scale band 101 by the stop needle portion 111 being caught on the vegetation or rubbing the ground. Further, when measuring a floor or furniture, the stop needle portion 111 damages the floor or furniture.

  Accordingly, an object of the present invention is to provide a tape measure in which not only one worker can measure a long distance but also does not cause any trouble in winding.

  The tape measure according to the present invention is a tape measure that is drawn out from a state in which a long scale band is wound, and is wound up in a wound state, and is in a drooping posture downward from the scale band that is drawn out. And a protruding piece that can be changed to a horizontal posture that is the same direction as the length direction of the scale band, the protruding piece is locked in a suspended position, and the lock is released by pulling out the drawn scale band. A temporary fixing means including a locking mechanism is attached to the tip of the scale band.

  According to this tape measure, one operator can measure by projecting the projecting piece as a hanging posture, for example, piercing from the ground into the ground, and moving to the measurement end point while feeding out the scale band. Even if the scale band is extended, the protruding piece is locked in the suspended position by the locking mechanism and remains stuck at the measurement starting point. Therefore, even if the scale band is drawn out and pulled, the tip end side of the scale band is not attracted and can be measured accurately. Then, after the measurement, when the operator pulls the scale band forward, the lock mechanism is unlocked, the protruding piece is pulled out from the ground, and the horizontal posture coincides with the length direction of the scale band. Therefore, when winding the scale band, the projecting piece does not get caught on plants or the like or rub the ground, so when winding the scale band in a wound state, temporary fixing means attached to the tip of the scale band Can be drawn smoothly toward the operator.

  Further, in the tape measure according to the present invention, the lock mechanism is provided in a cover that covers and supports the base end portion side of the protruding piece, and a locking portion provided at the base end portion of the protruding piece; A spring member that restricts the protruding piece to a hanging posture and a horizontal posture by contacting the locking portion, and a cover provided to lock the locking portion when the protruding piece is in the hanging posture. It is preferable to provide the to-be-latched part.

  According to this tape measure, when the locking mechanism is provided in the base end portion of the protruding piece, the spring member that restricts the protruding piece to the hanging posture and the horizontal posture, and when the protruding piece is in the hanging posture. By providing the locked portion that locks the locking portion, a simple configuration can be obtained, and it is difficult to break down due to dust or the like, and the durability can be improved.

  According to the tape measure of the present invention, the temporary fixing means is attached to the tip of the scale band, and the temporary fixing means can change the direction between the hanging posture and the horizontal posture, and the locking mechanism that maintains the protruding piece in the hanging posture. In addition to being able to accurately measure by one operator and wind up the scale band after the measurement efficiently, there is a problem in winding the scale band. Can not be.

  The configuration of the first embodiment of the tape measure according to the present invention will be described with reference to FIGS. This tape measure is characterized in that a temporary fixing means 2 is attached to the tip of a long scale band 1 with a scale (not shown).

  The scale band 1 is unwound from a state wound in a case (not shown), and is wound into a state wound in the case. The temporary fixing means 2 is a tongue-shaped projecting piece 10 that can be changed between a hanging position and a lateral position, and is locked so that the projecting piece 10 maintains the hanging position, and unlocked so that the projecting position can be a horizontal position. And a cover 30 that houses the lock mechanism 20 and the proximal end portion 12 side of the protruding piece 10.

  The cover 30 has a U-shaped bottom plate portion 31 in plan view, a pair of side plate portions 32, 32 erected on both side edges of the bottom plate portion 31, and a ceiling spanned over the upper edges of the side plate portions 32, 32. It has the board part 33. The bottom plate portion 31 has two protruding portions 31b and 31b protruding from one end of the base portion 31a, and a notch portion 31c is formed between the protruding portions 31b and 31b.

  Further, the cover 30 is provided with an opening 34 on the cutout portion 31 c side of the bottom plate portion 31, and the top plate portion 33 is inclined so that a narrowed portion is provided on the base plate portion 31 a side of the bottom plate portion 31. And the front-end | tip of the scale band 1 is inserted in the cover 30 from a constriction part, and is fixed to the base part 31a of the baseplate part 31 with the screw | thread 3 etc. FIG. Therefore, the temporary fixing means 2 can be attached to the existing tape measure scale band 1.

  When the bottom plate portion 31 and the side plate portions 32 and 32 are integrated and the top plate portion 33 is a separate body, the bottom plate portion 31 and the top plate portion 33 are fasteners 36 formed of bolts and nuts, etc. May be integrated. By doing so, the temporary fixing means 2 can repair or replace the lock mechanism 20 when the lock mechanism 20 breaks down.

  Further, the projecting piece 10 is a plate-like member and has a semicircular shape or a pointed shape (not shown) on the distal end portion 11 side so as to be easily stabbed into the ground or the like. The projecting piece 10 is provided with a rotating shaft 13 at the base end portion 12, and the rotating shaft 13 is attached to each side plate portion 32, 32 of the cover 30, and faces downward from the scale band 1 from which the projecting piece 10 is fed out. It is possible to change the direction between a drooping posture and a horizontal posture that is in the same direction as the length direction of the scale band 1. That is, since the notch 31 c is formed in the bottom plate portion 31 of the cover 30, the protruding piece 10 can change the direction between the hanging posture and the horizontal posture through the notch 31 c. Since the part 34 is formed, the protruding piece 10 can be in a horizontal posture.

  The lock mechanism 20 is attached to the base end portion 12 of the projecting piece 10, and normally includes a spring member 21 that urges the projecting piece 10 in a lateral posture, and a mechanism provided at the base end portion 12 of the projecting piece 10. When the stop portion 22 and the protruding piece 10 are in the hanging position, the locking portion 22 is locked (locked), and when the scale strip 1 is pulled up, the lock is released. And a locked portion 23.

  The spring member 21 can use a torsion coil spring. For example, when the spring member 21 is a torsion spring as shown, a small hole for winding the central portion of the spring member 21 is formed in the projecting piece 10. One end of the member 21 is in contact with the bottom surface of the protruding piece 10. However, although not shown, the spring member 21 may be configured such that the central portion of the torsion coil spring is wound around the rotating piece 13 around the protruding piece 10 and one end is in contact with the bottom surface of the protruding piece 10.

  In any case, the other end portion of the spring member 21 is in contact with the top plate portion 33 of the cover 30. In order to prevent the other end portion of the spring member 21 from slipping on the top plate portion 33 of the cover 30, an engagement portion that holds the other end portion of the spring member 21 on the top plate portion 33 of the cover 30. 35 is provided. As shown in the figure, the engaging portion 35 may be constituted by a protrusion protruding on the inner surface of the top plate portion 33 of the cover 30, or by a hollow portion in which the inner surface of the top plate portion 33 of the cover 30 is recessed. It may be configured.

  The locking portion 22 has a length close to the top plate portion 33 of the cover 30 when the protruding piece 10 is in the hanging position. As shown in the drawing, the spring member 21 is connected to the protruding piece 10. When it is wound around the central portion, it is provided at each end of the rotating shaft 13, and when not shown, the spring member 21 is wound around the rotating shaft 13 and is provided at the central portion of the protruding piece 10. In any case, a locked portion 23 that locks the locking portion 22 provided on the protruding piece 10 in the hanging posture is provided on the inner side surface of the top plate portion 33 of the cover 30.

  When the locking portion 22 is locked to the locked portion 23, the protruding piece 10 is locked so as to maintain the hanging posture. However, the locked portion 23 is released from the locked portion 23 when the scale band 1 is pulled to wind the scale band 1 that has been fed out after measurement, and the lock is released. . In addition, the to-be-latched part 23 may have moderate elasticity.

  Next, the configuration of the second embodiment of the tape measure according to the present invention will be described with reference to FIGS. Similar to the first embodiment, this tape measure is also characterized in that a temporary fixing means 2 is attached to the tip of a long scale band 1 with a scale (not shown), which is the same as the first embodiment. Parts will be described with the same reference numerals.

  Similar to the first embodiment, the temporary fixing means 2 of the second embodiment includes a tongue-like protruding piece 10, a lock mechanism 20, a base end side of the protruding piece 10, and a cover 30 that houses the lock mechanism 20. And. However, the locking mechanism 20 is different from the first embodiment in that the spring member 21 mounted on the protruding portions 31b and 31b of the bottom plate portion 31 and the elliptical locking mounted on the rotating shaft 13 of the protruding piece 10 are used. In order to lock and unlock the portion 22 and the state in which the protruding piece 10 is in the hanging posture, a locked portion 23 that locks the locking portion 22 is provided.

  One end of the spring member 21 is fixed to the projecting portions 31 b and 31 b of the bottom plate portion 31 by pins (rivets) 4 or the like, and the other end thereof faces the base portion 31 a of the bottom plate portion 31, so It is composed of a leaf spring that floats up.

  And the latching | locking part 22 is attached to the rotating shaft 13 of the protrusion piece 10, and is comprised by the block-shaped member of the ellipse shape in front view. When the protruding piece 10 is in a horizontal posture, the locking portion 22 of this piece-shaped member is in contact with the other end of the spring member 21 where the lower apex 22a on the short side of the ellipse is in a horizontal position. When the posture is maintained and the protruding piece 10 is in the hanging posture, the upper vertex 22b of the long axis of the ellipse is locked to the locked portion 23.

  The locked portion 23 is protruded from the top plate portion 33 of the cover 30 so that the protruding piece 10 changes from the hanging position to the horizontal position, and becomes upward when the protruding piece 10 is in the hanging position. The long-axis apex 22b is locked, and the long-axis apex 22c that faces downward also pushes the spring member 21 to lock the protruding piece 10 and pulls the drawn scale band 1 to wind it up after measurement. When unlocked, release the lock. In addition, this to-be-latched part 23 may have moderate elasticity.

  Here, the usage method of the tape measure of 1st and 2nd embodiment comprised as mentioned above is demonstrated. Before storing or measuring the tape measure, as shown in FIGS. 1 to 4 and FIGS. 6 to 8, the protruding piece 10 is in a lateral orientation. At this time, the protruding piece 10 is restricted by the spring member 21 and maintains a horizontal posture, and does not become an inclined posture or a hanging posture.

  Then, one worker picks the protruding piece 10 to make the hanging posture. Then, the locking portion 22 is locked to the locked portion 23, and the protruding piece 10 is locked by the lock mechanism 20 and maintains the hanging posture. The protruding piece 10 is provided with a notch 31c in the bottom plate portion 31 of the cover 30 and passes between the two protruding portions 31b and 31b to be in a hanging posture.

  Then, as shown in FIGS. 5 and 9, one worker pierces the distal end portion 11 or the intermediate portion of the protruding piece 10 from the measurement starting point, for example, the ground into the ground. Subsequently, this one operator moves to the measurement end point while feeding the scale band 1 with the tape measure. At this time, the projecting piece 10 is locked by the locking mechanism 20 and is not pulled out from the ground in order to maintain the hanging posture, and the tip end side of the scale band 1 and the temporary fixing means 2 are moved by one moving operator. It cannot be drawn toward, in other words, it will not be displaced.

  One worker reads the scale at the measurement end point, and records and collects the measurement data. Since the tip side of the scale band 1 is not displaced from the starting point to be measured, accurate measurement data can be recorded and collected.

  Thereafter, one operator pulls the graduation band 1 toward the front at the measurement end point. Then, the lock of the lock mechanism 20 is released, and the distal end portion 11 or the intermediate portion of the projecting piece 10 assumes a lateral posture while being pulled out from the ground. Therefore, the tip 11 of the projecting piece 10 is not caught on a plant or the like or rubs the ground, and one operator can draw the temporary fixing means 2 and smoothly wind the scale band 1. . Thus, by using this tape measure, one operator can measure efficiently and accurately.

  The present invention can be variously modified without being limited to the above embodiment. For example, although the tip of the scale band 1 is shown with only the temporary fixing means 2 attached, a strap is also attached so that it is easy to use when two workers measure. You can also. Moreover, although the case where the protrusion piece 10 was stabbed in the ground was demonstrated in the said embodiment, it can also measure by locking the protrusion piece 10 to a side groove | channel.

It is a perspective view which shows 1st Embodiment of the tape measure which concerns on this invention. It is 1st Embodiment of the tape measure which concerns on this invention, Comprising: It is a cross-sectional front view of the III-III sectional view of FIG. 3 which shows the state by which the protrusion piece was made into the horizontal attitude | position. It is 1st Embodiment of the tape measure which concerns on this invention, Comprising: It is a cross-sectional top view of the II-II line cross section of FIG. 2 which shows the state by which the protrusion piece was made into the horizontal attitude | position. It is 1st Embodiment of the tape measure which concerns on this invention, Comprising: It is a side view which shows the state by which the protrusion piece was made into the horizontal attitude | position. It is 1st Embodiment of the tape measure which concerns on this invention, Comprising: It is a cross-sectional front view which shows the state by which the protrusion piece was made into the hanging position. It is 2nd Embodiment of the tape measure which concerns on this invention, Comprising: It is a cross-sectional front view of the VII-VII line cross section of FIG. 7 which shows the state by which the protrusion piece was made into the horizontal attitude | position. It is 2nd Embodiment of the tape measure which concerns on this invention, Comprising: It is a cross-sectional top view of the VI-VI line cross section of FIG. 6 which shows the state by which the protrusion piece was made into the horizontal attitude | position. It is 2nd Embodiment of the tape measure which concerns on this invention, Comprising: It is a side view which shows the state by which the protrusion piece was made into the horizontal attitude | position. It is 2nd Embodiment of the tape measure which concerns on this invention, Comprising: It is a cross-sectional front view which shows the state by which the protrusion piece was made into the hanging posture. It is a perspective view which shows the conventional tape measure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Scale band 2 ... Temporary fixing means 10 ... Protruding piece 12 ... Base end part 20 ... Locking mechanism 21 ... Spring member 22 ... Locking part 23 ... Locked part 30 ... Cover

Claims (2)

A tape measure which is drawn out from a state in which a long scale band is wound, and wound up in a wound state,
A projecting piece that can be changed into a drooping posture that is downward from the fed scale band and a horizontal position that is in the same direction as the length direction of the scale band, the projecting piece is locked in the drooping position, and is fed out. A tape measure characterized in that a temporary fixing means including a lock mechanism for releasing the lock by pulling the scale band is attached to the tip of the scale band.   The lock mechanism is provided in a cover that covers and pivotally supports the base end side of the protruding piece, and comes into contact with the locking portion provided at the base end of the protruding piece, A spring member for restricting the protruding piece to a hanging posture and a horizontal posture, and a locked portion provided on the cover to lock the locking portion when the protruding piece is in the hanging posture. The tape measure according to claim 1.

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