JPH0713992U - Auxiliary device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Make it possible to easily and accurately implement the top leveling of foundations during foundation work. A level part associated with a level detector is movably attached to a positioning tool, and a longitudinal rod-shaped auxiliary tool body 11 associated with the positioning tool is provided with a screw hole that opens at an upper end thereof. The adjusting screw body 14 is screwed so as to be able to move forward and backward according to the setting of the setting unit 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a crowning assisting device.

[0002] This type of top-end assisting device is a so-called top-end leveling of concrete cast into an iron formwork during foundation work of foundations such as buildings and foundation columns, that is, a predetermined height of foundation. It is useful because it is configured so that the level of so-called crowning, that is, the level at which the crowning material is poured onto the poured concrete is accurately represented when obtaining the level and leveling the surface horizontally. .

[0003]

[Prior art]

 Generally, in foundation works such as foundations for buildings and foundation pillars, it is necessary to obtain a predetermined foundation height and level the foundation surface. In this case, a plurality of nails are buried in concrete, which is conventionally used as a foundation, with the head showing a predetermined driving level. Since the concrete poured here generally has poor fluidity, some unevenness remains on the surface after setting and solidification. Therefore, until the surface of the concrete that has been driven close to the specified level reaches the level of the nail head, pour further crown leveling material on the top surface of the concrete to the level set by the nail, This will give the foundation a certain height and make the surface highly level for a beautiful finish.

[0004]

[Problems to be solved by the device]

 However, as described above, it is extremely difficult to position each head of each nail at a predetermined level in the structure in which a plurality of simple nails are driven into the concrete that has been driven in the foundation work. Therefore, for example, it has been troublesome to make the level detector using a laser beam and the like cooperate well with the nail and to reliably set the top end projection level by the head of the nail. In addition, there is a problem that even if the nail is initially positioned at a predetermined level, the nail will sink and tilt, and the predetermined level cannot be expressed accurately.Therefore, a structure that can set the level with high accuracy is required. Was there.

Therefore, the object of the present invention is to accurately position the top end assisting tool at a predetermined level with respect to the poured concrete, to obtain a predetermined height of the foundation and to make the surface highly level. An object is to provide a top-end assisting device that can effectively contribute to making a product beautiful.

[0006]

[Means for Solving the Problems]

 According to the present invention, the object is to provide a positioning tool having an elongated positioning body 1 having an engaging portion 2 at the lower end and having a level setting portion, and a receiving member having an opening at the upper end of a longitudinal rod-shaped auxiliary tool body 11. An adjusting screw body 14 is screwed into the screw hole 13 so as to be able to move forward and backward, and a top end assisting tool having an engaging portion 16 with an engaging portion 2 of the positioning body 1 is provided on the upper surface of the adjusting screw body 14. This is achieved by the auxiliary device for crowning.

[0007]

[Action]

 Therefore, according to the invention of claim 1, since the adjusting screw body 14 is provided at the upper end portion of the auxiliary tool main body 11 in the top end assisting device so as to be able to move forward and backward, it is adjusted by the positioning tool which is linked with the level detector LD. By rotating the screw body 14 with respect to the auxiliary tool main body 11 to move it back and forth, the height position of the head of the adjusting screw body 14, that is, the head position of the top end assisting tool can be freely adjusted.

According to the second aspect of the present invention, since the level setting section linked to the level detector is attached to the longitudinal positioning tool, the level detector can determine an appropriate level. The adjusting screw body 14 of the top end assisting tool can be accurately positioned at a predetermined position corresponding to the set level.

Further, according to the invention of claim 3, an upper blade part made of a mesh material is provided on the upper part of the auxiliary tool body 11 and extends in a direction perpendicular to the auxiliary tool body 11 and horizontally. Since the lower blade part 17 extending in the direction perpendicular to and perpendicular to the auxiliary tool body 11 is provided at the lower part of the main body 11, the degree of connection with the concrete material or the top leveling material, in other words, the concrete material or the top leveling material. The supporting force of the timber can be improved, and the subsidence and tilt of the top-end assisting tool can be suppressed.

[0010]

【Example】

 1 to 3, the top end assisting device according to the present invention includes a positioning tool and a top end assisting tool. The positioning tool includes a positioning main body 1. The positioning main body 1 is composed of, for example, a round bar-shaped core shaft portion 1a and a hollow outer body 1b having a rectangular cross section. Further, the lower end of the core shaft portion 1a is provided with an engaging portion 2 in the form of a driver tip, the operation disk portion 3 is provided at the upper end, and the core shaft portion 1a is rotatably provided in the outer enclosure 1b. ing. A cursor 5 which is a level setting portion in association with a level detector LD described later is attached to the outer envelope 1b, and the cursor 5 is fixed to an appropriate position on the outer peripheral surface of the outer envelope 1b by a fixing screw 4. . Here, the core shaft portion 1a is configured to be rotatable within the outer envelope 1b, but is configured so as not to move relative to the outer envelope 1b in the axial direction. That is, the fixed holder 5a is attached to the lower part of the core shaft portion 1a, and the lower surface of the operation disk portion 3 and the upper end of the fixed holder 5a are arranged so as to be in sliding contact with the upper and lower ends of the outer enclosure 1b. While the shaft portion 1a is rotatable with respect to the outer envelope body 1b, it is axially fixed to the outer envelope body 1b via the lower surface of the operation disk portion 3 and the upper end of the fixed holder 5a. At this time, it is preferable that the fixed holder 5a has a threaded portion on the core shaft portion 1a and is screwed into the threaded portion.

On the other hand, referring to FIGS. 4 and 5, the top end assisting tool according to the present invention is provided with a longitudinal rod-shaped assisting tool main body 11. The outer shape of the auxiliary tool body 11 may be generally in the form of a round bar, but may be in the form of a square bar. Further, it is preferable that the lower end of the auxiliary tool body 11 is sharpened in a conical shape and irregularities such as nicks are provided on the periphery in order to improve the bondability with the concrete material or the top end material. The auxiliary tool main body 11 is provided with an upper blade portion 12 which extends at a right angle to the auxiliary tool main body 11 and extends horizontally. The upper blade portion 12 is preferably formed of a mesh material, but a perforated plate may be used. Further, the auxiliary tool main body 11 is provided with a screw receiving hole 13 opening at the upper end thereof.

An adjusting screw body 14 is screwed into the receiving screw hole 13 of the auxiliary tool body 11 so as to be able to move forward and backward, and the adjusting screw body 14 is smoothly rotated on the upper surface 15 of the adjusting screw body 14. For example, the engaging groove 16 capable of accommodating an appropriate jig in the form of a driver is provided. At this time, the adjustment screw body 14 is provided to move back and forth by at least 1 to 3 cm or more. Further, when the adjusting screw body 14 is screwed into the receiving screw hole 13, the adjusting screw body 14 is preferably provided so that the upper portion 15 can be screwed to a position substantially aligned with the opening end of the adjusting screw body 14. In this case, in particular, as shown in FIGS. 4 and 5, it is also preferable that the upper portion 15 of the adjusting screw body 14 is provided in a dish shape and the receiving screw hole 13 is formed in a tapered surface corresponding to this. Further, although the receiving screw hole 13 is desirably screwed with the adjusting screw body 14, a plurality of grooves extending in the axial direction are provided so that the adjusting screw body 14 can be escaped even if foreign matter such as sand enters when the adjusting screw body 14 is screwed. Are formed so as to be spaced apart from each other in the circumferential direction. That is, it will be understood that the female screws of the receiving screw holes 13 are circumferentially spaced and are intermittently arranged in the axial direction.

Further, the lower part of the auxiliary tool body 11 is preferably provided with a lower blade portion 17 extending in a direction perpendicular to and perpendicular to the auxiliary tool body 11. The lower blade portion 17 is also preferably made of mesh material, but a perforated plate may be used.

However, in the crowning assisting device according to the present invention for foundation work, for example, a crowning assisting tool as shown in FIG. 6 is buried in concrete. At this time, the cursor 5 as a level setting unit is fixed to the positioning main body 1 into which the engaging portion 2 is inserted in the engaging groove 16 of the top end assisting tool, and the laser beam emitted horizontally from the level detector LD is fixed. Until the cursor 5 hits the reference line, the core shaft 1a and then the adjusting screw body 14 are rotated in one direction via the operation handle portion 3 to rotate the adjusting screw body 14 and the adjusting screw body 14 relative to the auxiliary tool body 11. The core shaft portion 1a is moved back and forth. This makes it possible to position the crowning aid with a high degree of accuracy and set a suitable crowning level for pouring the crowning material after solidification of concrete.

Further, the auxiliary tool main body 11 is provided with an upper blade portion 12 extending in a direction perpendicular to the auxiliary tool main body 11 and horizontally, and a mesh extending perpendicularly to the auxiliary tool main body 11 in the lower part of the auxiliary tool main body 11 is provided. Since the lower blade portion 17 of the material is provided, the concrete material flows into the mesh of both blade portions 12 and 17, and the holding force of the concrete material or the top end leveling material increases, and the sinking or The tilt can be effectively suppressed.

In place of the cursor 5 of the positioning body 1 of the positioning tool described above, a light receiving element may be provided, and a level setting section 6A of another mode may be attached or provided side by side with a screw 7A (see FIG. 3). Further, it is preferable to attach a magnet 3a to the core portion 1a of the positioning main body 1, so that the positioning tool can be prevented from being scattered by being attracted and fixed to the steel material forming the formwork at the construction site.

[0017]

[Effect of device]

 According to the crowning assisting device of the present invention configured as described above, especially the head of the crowning assisting device can be easily positioned at a predetermined driving level, so that the crowning material for the foundation concrete can be easily positioned. Practical effects such as highly leveling of the surface can be achieved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a top end assisting device of the present invention.

FIG. 2 is a side view of a positioning tool of the top end assisting device of FIG.

FIG. 3 is a side view of another embodiment of the positioning tool of the crowning assisting device of FIG. 1.

FIG. 4 is a side view of the top end assisting tool shown in FIG. 1.

5 is a cross-sectional view of the top end assisting tool shown in FIG.

FIG. 6 is an operation explanatory view of the top end assisting device of FIG. 1.

[Explanation of symbols]

 1 Positioning Main Body 1a Core Shaft Part 1b Enclosure 2 Engagement Part 3 Operation Disc Part 4 Fixing Screw 5 Level Setting Part 5a Fixed Holder 11 Auxiliary Tool Body 12 Upper Blade Part 13 Receiving Screw Hole 14 Adjustment Screw Body 15 Top 16 Engagement Recess Groove 17 Lower blade part

Claims (3)

[Scope of utility model registration request] 1. A positioning tool having an elongated positioning body 1 having an engaging portion 2 at its lower end and having a level setting portion, and a screw receiving hole 13 opened at the upper end of a longitudinal rod-shaped auxiliary tool body 11. The adjusting screw body 14 is screwed so as to be able to move forward and backward, and the engaging portion 2 of the positioning body 1 is provided on the upper surface of the adjusting screw body 14.
And a top end assisting device having an engaging portion 16 for engaging with the top end assisting device. 2. The top end assisting device according to claim 1, wherein the level setting section 5 is mounted on the outer peripheral surface of the positioning main body 1 of the positioning tool. 3. The upper part of the auxiliary tool body 11 made of mesh material,
An upper blade portion (12) extending perpendicularly and horizontally to the auxiliary tool body (11) is provided, and a lower blade portion (17) made of a mesh material is provided at a lower portion of the auxiliary tool body (11) extending perpendicularly and vertically. Auxiliary auxiliary device