JPH0662319U - Vertical measuring device that also serves as a steady stop for plumb bob - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the swing of the plumb bobbin 1 at an early stage, and to easily and accurately measure the distance from the surface of the measurement target surface A of the building structure to the thread 1. [Structure] A groove-shaped hole 111 for loosely inserting the bobbin thread 1 is formed in the longitudinal direction, and a scale 112 is formed along the groove-shaped hole 111.
With a ruler plate 110 provided with a fixed structure and fixing means 124 and 127 for fixing to the building structure, and an abutment 120 for supporting the ruler plate 110 at a right angle to the measurement target surface of the building structure.
And a ruler plate 110 for the abutment 120.
Are slidably engaged in the width direction Y thereof.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a steady-state vertical measuring instrument which is also used in a construction work for suppressing the vibration of a plumb bob hanging on a vertical construction portion and performing a verticality confirmation work.

[0002]

[Prior art]

 In construction work, plumb bob is used as a tool to check the verticality of vertical construction parts of building structures such as columns and steel frames, that is, the verticality with respect to the horizontal plane. In this plumb bob, a plumb bob cage is attached to the upper part of the surface to be measured, and the plumb bob body, which is a weight, is hung at the lower end of the thread fed from this cage to measure the verticality of the measurement surface. To do. However, the length of the drooping thread is usually 4 to 5 m, and in some cases even 10 m, and the weight of the plumb bob main body is about 1200 g, which has a large inertia, so the vibration does not stop easily, especially Since there are many work opportunities outside the building for steel-framed building structures, that is, there are many works that are exposed to the outside air, it is easy to be affected by the wind, and it is not possible to wait until the shake naturally subsides. However, it is extremely inconvenient in terms of work efficiency. Therefore, it is indispensable to use the steady rest to deal with the poor runout of the yarn. Conventionally, as the steady rest, a rod-shaped one that is attached to the surface to be measured and is brought into contact with the thread is typically used.

[0003]

[Problems to be solved by the device]

 The above-mentioned steady rest has a certain damping effect against the initial runout having a relatively large amplitude, but the runout restraint due to contact with the thread can be restricted from only one direction. There is still a problem that it takes a considerable amount of time until the vibration is completely settled after the amplitude is regulated to some extent by the contact with. In addition, since this rod-shaped steady rest is not designed to be attached orthogonally to the surface to be measured of the building structure and the yarn, even if the yarn is completely damped, the vertical In order to check the thread, it is necessary to move it at a right angle to the thread or re-install it. Moreover, by moving or reattaching such a steady rest, a new thread is required. May cause a shake of. Furthermore, in order to check the verticality, it is necessary to measure not only the visual distance but also the distance from the surface of the surface to be measured to the thread accurately. Since there is no means for making accurate measurements, an appropriate ruler must be prepared separately, and this must be read at right angles to the surface of the surface to be measured and the state of the ruler read while reading the scale of the ruler. Absent. Therefore, it has been difficult to obtain highly reliable measurement accuracy due to uncertainty and complexity in the work in such an unreasonable posture.

The present invention has been made under the circumstances as described above, and its technical problem is to quickly suppress the swing of the plumb bobbin and to measure the measurement target surface of the building structure. It is to be able to measure the distance from the surface to the thread easily and accurately.

[0005]

[Means for Solving the Problems]

 The above technical problems can be effectively solved by the present invention. In other words, the plumb bob / stopper vertical measuring device according to the present invention comprises a ruler plate in which a grooved hole for loosely inserting a bobbin thread is formed in the longitudinal direction, and a scale is provided along the grooved hole. It comprises a fixing means for fixing to a structure and an abutment for supporting the ruler plate at right angles to the surface to be measured of the building structure. Further, in this case, as a preferred embodiment, a ruler plate is slidably engaged with the abutment in the width direction thereof, and a magnetic body holding portion is formed on the ruler plate. It

[0006]

[Action]

 The steady-state vertical measuring device of the present invention is constructed by inserting a plumb bob that hangs vertically into a groove-like hole in a ruler plate and fixing the abutment to the measurement surface of the building structure by its fixing means. , The ruler plate is held at right angles to the surface to be measured, that is, horizontally, and regulates the vibration of the yarn passing through the grooved hole from both sides in the vibration direction by contact with both edges extending in the longitudinal direction of the grooved hole. . When the yarn is stationary, the distance from the surface to be measured to this yarn can be read by a scale provided along the groove.

According to a preferred embodiment of the present invention, when the yarn is in contact with one edge of the slotted hole in a stationary state, the fixed position of the abutment is changed with respect to the surface to be measured of the building structure. Without moving the ruler plate, the grooved hole is moved to the position where it does not come into contact with the thread by sliding the ruler plate in the plate surface direction at right angles to the longitudinal direction, that is, in the horizontal direction. Correct the thread verticality by. In addition, by holding a member made of a magnetic material such as steel in the magnetic material holding portion formed on the ruler plate when carrying the device, this vertical measuring device that also serves as a steady rest can be It can be carried in a state in which it is attracted to the magnetic attraction unit and the like together with the magnetic body.

[0008]

【Example】

 The structure of the vertical measuring device of the present invention, which also serves as a steady rest, will be described with reference to the preferred embodiment shown in FIGS. 1 to 5, together with its operation. First, in FIG. The steady-state vertical measuring instrument also shown in FIG. 1 includes a ruler plate 110 and an abutment 120 integrally attached to the ruler plate 110.

The ruler plate 110 is entirely made of synthetic resin, and has a groove-shaped hole extending in the longitudinal direction X substantially at the center in the width direction Y (direction of the plate surface and at right angles to the longitudinal direction X). 111 is formed, and one surface 110a in the thickness direction Z is provided with graduations 1 in 1 mm units along the edges 111a and 111b on both sides of the groove-like hole 111, and on the opposite side. As shown in FIGS. 2 and 5, on the surface 110b, a ridge portion 113 as a magnetic material holding portion extends in a substantially rectangular shape across both sides of the groove-shaped hole 111. A slide rail portion 114 extending along the width direction Y is formed at the base end of the ruler plate 110. The width W of the groove-like hole 111 is larger than the wire diameter (thickness) of the bobbin thread 1, that is, the thread 1 is inserted into the groove-like hole 111 with an appropriate gap. Further, the scale 112 has a mounting surface 120a of an abutment 120, which will be described later, as a starting point (0 position).

The abutment 120 has a split resin main body 121 made of synthetic resin, which is joined to each other in the thickness direction via a pair of screw members 122. A sandwiching piece 123 having a groove portion 123a corresponding to the slide rail portion 114 is formed on the opposing surface, and the base end portion of the ruler plate 110 including the slide rail portion 114 has a width by the sandwiching piece 123. It is slidably engaged in the direction Y. A mounting surface 120a is formed at the end opposite to the sandwiching piece 123. The mounting surface 120a is perpendicular to the longitudinal direction X of the ruler plate 110 supported by the sandwiching piece 123, and It is formed parallel to the width direction Y and the thickness direction Z.

FIG. 2 shows an internal structure of the engaging portion between the ruler plate 110 and the abutment 120 by removing one of the split main body 121 of the abutment 120, and FIG. 120 is seen from the mounting surface 120a side. That is, on the mounting surface 120a side between the main bodies 121 and 121, as the first fixing means of the abutment 120, the permanent magnet 124a and the magnetic poles on both sides in the thickness direction thereof are attracted and part thereof is exposed to the mounting surface 120a. A magnetic attracting member 124 made up of a pair of magnetic frames 124b made of a steel plate is fitted, and a part of the permanent magnet 124a is pressed against the inner surface of the main body 121 at the inner position of the magnetic attracting member 124b. There is provided a spring member 125 made of a synthetic resin that prevents the occurrence of the above and presses the slide rail portion 114 of the ruler plate 110 against the stepped surfaces of the groove portions 123a of the both holding pieces 123 to provide an appropriate friction resistance. Further, a protrusion 126 is formed in the groove 123a, and the protrusion 126 engages with an elongated hole 115 formed in the slide rail portion 114 of the ruler plate 110 and extending in the width direction Y. The amount of movement of the ruler plate 110 in the width direction Y with respect to is regulated and is prevented from coming off.

Further, a hooking protrusion 127 having a mosquito-shaped hooking hole 127a is formed as a second fixing means of the abutment 120 on a portion of the main bodies 121, 121 on the side of the mounting surface 120a. The engagement protrusion 127 engages the engagement hole 127a with the head of a nail or a wood screw driven into the measurement target surface A of the building structure, thereby moving the abutment 120 to the measurement target surface A. It is something that is fixed.

FIG. 4 shows a usage state of the steady rest / vertical measuring instrument 100 according to the present embodiment. The yarn 1 fed from the plumb bob cage 2 fixed to the upper part of the surface A to be measured is a ruler plate. It hangs down through the groove-shaped hole 111 of 110, and the lower body is attached to the lower end thereof. The steady rest vertical measuring device 100 is fixed to the surface A to be measured so as to be located directly below the down swing retainer 2 and in the vicinity of the lower end of the thread 1, and the ruler plate 110 is attached to the abutment 120. Since it is perpendicular to the surface 120a, it is held at a right angle to the measurement target surface A, that is, substantially horizontal. The vibration of the yarn 1 about the yarn feeding port 2a of the bobbin retainer 2 as a fulcrum is regulated from both sides in the vibration direction by the contact with both edges 111a and 111b of the groove-like hole 111 of the ruler plate 110. , Will be dampened early. When the thread 1 stands still in the groove hole 111, the distance from the surface A to be measured to the thread 1 can be accurately read by the scale 112.

Further, when the yarn 1 is stopped while being in contact with one edge of the groove-shaped hole 111, the verticality of the yarn 1 is slightly impaired. Since it is slidable in the width direction Y with respect to 110, in this case, by appropriately moving the ruler plate 110 in the width direction Y, the groove-like hole 111 does not come into contact with the yarn 1, Thereby, the verticality of the yarn 1 can be easily corrected. Then, in this case, as long as the position of the groove-like hole 11 1 at the beginning of the installation of the steady rest vertical measuring device 100 is not significantly deviated from the vertical stop position of the thread 1, the abutment 120 with respect to the surface A to be measured is measured. Since the position of the groove-shaped hole 111 can be finely adjusted only by the sliding movement of the ruler plate 110 without re-fixing the thread, the amplitude of the thread 1 can be suppressed to be extremely small even if a new vibration occurs.

Further, as shown in FIG. 5, the steady rest vertical measuring instrument 100 according to this embodiment has a strip portion 4 formed of a magnetic material such as steel on a ruler plate 110 in a rectangular shape. And the magnetic attraction part 2b, which is a means for fixing the down swing holder 2 to the surface A to be measured by a permanent magnet, by using this plate piece 4, and is held integrally with the down swing holder 2. Can be carried on the phone. In this case, the plate piece 4 can be prevented from being lost by being attached between the hook 5 for detachably attaching the plumb bob body 3 and the lower end portion of the thread 1. Alternatively, the ruler plate 110 may be adhesively held from the beginning at a position other than the groove-shaped hole 111.

[0016]

[Effect of device]

 According to the vertical measuring device of the present invention which also functions as a steady rest, the following effects can be obtained. (1) Since the vibration of the drooping thread is regulated from both sides in the vibration direction within the groove-shaped hole of the ruler plate, it is possible to quickly brake the vertical state. (2) Since the distance from the surface to be measured of the building structure to the yarn that is stationary in the grooved hole can be read by the scale provided along the grooved hole, the measurement can be performed accurately and quickly. You can (3) The deviation between the vertical stop position of the thread and the groove hole can be corrected only by the sliding movement of the ruler plate with respect to the abutment, so the verticality of the thread can be easily corrected. New vibration of the yarn can be suppressed to a minimum. (4) The magnetic body held by the magnetic body holding portion of the ruler plate can be carried in a state of being attracted to the magnetic attraction portion or the like of the swing-back holder, which facilitates handling and management.

[Brief description of drawings]

FIG. 1 is a perspective view of an entire steady-state vertical measuring device 100 showing a preferred embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an internal structure of an engaging portion of a ruler plate 110 and an abutment 120 in the steady rest vertical measuring instrument 100.

FIG. 3 is a view of an abutment 120 in the steady-state vertical measuring device 100 as viewed from the mounting surface 120a side thereof.

FIG. 4 is an explanatory view showing a usage state of the steady rest vertical measuring device 100.

FIG. 5 is a perspective view showing a state in which the steady rest vertical measuring device 100 is sucked and held by a down swing holder 2.

[Explanation of symbols]

 1 thread 2 bobbin retainer 3 bobber main body 4 plate piece (magnetic material) 110 ruler plate 111 groove-shaped hole 112 scale 113 protrusions (magnetic material holding portion) 114 slide rail part 120 abutment 123 clamping piece 124 magnetic attraction Member (fixing means) 127 Engagement protrusion (fixing means)

Claims (3)

[Scope of utility model registration request] 1. A ruler plate having grooved holes for loosely inserting a bobbin thread formed in the longitudinal direction and scales provided along the grooved holes, and a fixing means for fixing to a building structure, and the ruler. A vertical measuring device that also serves as a steady rest for plumb bob, which consists of an abutment that supports the plate at right angles to the surface of this building structure. 2. The vertical measuring device also for steady swing of swing-down according to claim 1, wherein a ruler plate is slidably engaged with the abutment in the width direction thereof. 3. The vertical measuring device also as a steady rest for down swing according to claim 1, wherein a magnetic body holding portion is formed on the ruler plate.