JPH084516Y2 - Auxiliary device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a top end assisting device.

This type of top-end assisting device is a so-called top-end of concrete cast into an iron formwork in foundation work such as a foundation or pillar of a building, that is, a predetermined height of the 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 the surface is leveled and the surface is obtained.

[0003]

2. Description of the Related Art In general, in foundation works such as a foundation stand and a foundation pillar of a building or the like, 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 to be conventionally driven as a foundation so that the head shows 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 to a level close to the specified level reaches the level of the head of the nail, pour the top leveling material of the concrete further into the level set by the nail,
A predetermined height of the foundation is obtained and the surface is highly leveled for a beautiful finish.

[0004]

However, in the structure in which a plurality of simple nails are simply driven into concrete that has been driven in the foundation work as described above, it is extremely difficult to position each head of the nails at a predetermined level. . Therefore, it has also been complicated to satisfactorily link the level detector using a laser beam or the like with the nail and to reliably set the top end projection level by the head of the nail. Further, even if the nail is initially set at a predetermined level, there is a problem that the nail cannot be accurately expressed because the sinking or tilting of the nail occurs, and a structure capable of setting the level with high accuracy is required. It was

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. It is to provide a top end assisting device that can effectively contribute to beauty.

[0006]

According to the present invention, a purpose of the present invention is to provide 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 longitudinal rod-shaped auxiliary tool. The adjusting screw body 14 is screwed into the screw receiving hole 13 opened at the upper end of the main body 11 so as to be able to move forward and backward, and the engaging portion 16 for engaging with the engaging portion 2 of the positioning main body 1 is provided on the upper surface of the adjusting screw body 14. This is achieved by a crowning assisting device including a crowning assisting tool.

[0007]

According to the first aspect of the invention, since the adjusting screw body 14 is provided at the upper end of the auxiliary tool body 11 in the top end assisting device so as to be able to move forward and backward, the positioning is linked with the level detector LD. With the tool, the adjusting screw body 14 is rotated with respect to the auxiliary tool body 11 to move back and forth, so that the head position of the adjusting screw body 14, that is, the height position of the head 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, an appropriate level can be indexed by the level detector. The adjusting screw body 14 of the end aid can be accurately positioned at a predetermined position corresponding to the set level.

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

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 3, a top end assisting device according to the present invention comprises 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. Moreover, the lower end of the core shaft portion 1a is provided with an engaging portion 2 in the form of a driver tip portion, and the upper end is provided with an operation disk portion 3.
Moreover, the core shaft portion 1a is rotatably provided in the outer enclosure 1b. A cursor 5 which is a level setting unit in association with a level detector LD described later is attached to the outer envelope 1b, and the cursor 5 is fixed to a proper 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 body 1b, but is configured so as not to move relative to the outer envelope body 1b in the axial direction. That is, the fixed holder 5a is attached to the lower portion 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 above the outer enclosure 1b.
By arranging the core shaft 1a so as to be slidably contacted with the lower end, the core shaft portion 1a is rotatable with respect to the outer body 1b, while the outer body 1b is interposed via the lower surface of the operation disc portion 3 and the upper end of the fixed holder 5a. Is fixed in the axial direction. 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 this 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 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. Also, the auxiliary tool body 11
It is preferable that the lower end be sharpened in a conical shape and that the periphery be provided with irregularities such as notches in order to improve the bondability with the concrete material or the top end leveling material. The auxiliary tool main body 11 is provided with an upper blade portion 12 which is orthogonal to the auxiliary tool main body 11 and extends horizontally at the upper part. 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 which opens 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 a driver form is provided. At this time, the adjustment screw body 14 is provided to advance and retreat at least 1 to 3 cm, or more. Moreover, the adjusting screw body 14 is provided with the receiving screw hole 13
When screwed in, the upper part 15 is preferably provided so that it can be screwed to a position substantially aligned with the open end of the adjusting screw body 14. In this case, in particular, as shown in FIGS. 4 and 5, the upper portion 15 of the adjusting screw body 14 is provided in a dish shape, and the receiving screw hole 13 is formed.
It is also preferable to form a taper surface in accordance with this. The receiving screw hole 13 preferably has a plurality of grooves extending in the axial direction so that the adjusting screw body 14 can be screwed into the receiving screw hole 13, but even if foreign matter such as sand enters when the adjusting screw body 14 is screwed in, the adjusting screw body 14 can escape. Are formed so as to be spaced apart from each other in the circumferential direction. That is, it will be understood that the female threads of the receiving screw holes 13 are circumferentially spaced and are intermittently arranged in the axial direction.

Further, a lower blade portion 17 extending at right angles to and perpendicular to the auxiliary tool body 11 is preferably provided on the lower portion of 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 is embedded in concrete as shown in FIG. 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 concave groove 16 of the top end assisting tool, and the laser beam emitted horizontally from the level detector LD is Operation handle 3 until the cursor 5 hits the reference line
The core shaft portion 1a and then the adjustment screw body 14 are rotated in one direction via the to move the adjustment screw body 14 and the core shaft portion 1a with respect to the auxiliary tool body 11. This makes it possible to position the top end assisting tool with high accuracy and to appropriately set the top end applying level at which the top end leveling material is poured after the concrete is solidified.

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 member extending below the auxiliary tool main body 11 in a direction perpendicular to the auxiliary tool main body 11 vertically. Since the lower blade portion 17 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 inclination of the top end assisting tool. Can be effectively suppressed.

Instead 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]

EFFECTS OF THE INVENTION According to the top end assisting device of the present invention constructed as described above, the head of the top end assisting tool can be particularly easily positioned at a predetermined driving level. Practical effects such as highly leveling of the lining material 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