JPS61172902A - Joint frame clamp jig - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a joint frame fastener, and particularly to a joint frame fastener for concrete construction joints.

[Conventional technology]

Conventionally, in road or ground concrete paving work,
Construction joints will be placed on the paved road on the 1st.

For this construction joint, the joint plate is fixed by driving a bottle into the roadbed at the construction end. As this fixing method, the joint plates were fixed through a seal.

[Problem that the invention seeks to solve]

The above method had the following problems.

(a) When the roadbed is hard or when bulk earth work is to be carried out on an existing concrete platform, it is time consuming to drill holes and drive the bottles. Furthermore, it takes a lot of effort and time to set the fasteners, and during this time there is a loss in that machines such as the finisher are stopped and idle.

(b) Because the machine was pounding the bottles, the machine had to stop before the bottles, which required manual concrete laying, which was inefficient, and post-processing such as removing the bottles took time.

[Means for solving problems]

The present invention solves the above-mentioned problems and provides a joint frame fastener that is effective in installing construction joints in a short time with a simple configuration and operation, and increasing the amount of work per day. The purpose is to
Attach formwork hooks symmetrically to both ends of the joint frame support,
The formwork hanging assembly is configured as a joint frame fastener characterized in that a hooking part is formed on the top and outside of the main body part, and the hooking part is configured to be hooked to the upper part of the wall of the side formwork.

[For production]

According to the present invention having the above configuration, the formwork hanging bodies are attached symmetrically to both ends of the joint material support, so that the formwork hanging bodies are simply hooked to the upper edges of the concrete formworks on both sides. In addition, the joint plate can be fixed with the joint material supports without driving pins into the roadbed as in the conventional method, and the joint material supports only protrude slightly from the upper edges of the formwork on both sides. By retracting the arm of the support from the joint, a machine such as a finisher can approach the joint boundary.

〔Example〕

An embodiment in which the present invention is applied to cement concrete pavement of roads will be described based on the drawings. FIG. 1 is a plan view showing the first embodiment, and FIG. 2 is a front view.

The joint frame stopper 1 is constructed by integrally attaching formwork hooks 3, 3' to both ends of a joint frame support 2 in a symmetrical manner.

The joint frame support 2 is formed into a rectangular tubular shape, and its length is matched to the width of the formworks 5 on both sides arranged to match a predetermined path width.

The formwork hanging body 3.3' has a main body part 3a which is vertical in the front, and a hanging part 3 which is horizontally disposed at the upper end of the main body part 3a.
b and an outer edge portion 3c attached downward from the outer end of the hooking portion 3b to form a broken circuit shape. Both formwork hooking bodies 3, 3' The main body parts 3a, 3a face each other and are pivoted to both ends of the joint frame support 2.

In the drawings, reference numeral 4 indicates a roadbed, 5 indicates a side formwork, 6 indicates a rail support, and 7 indicates a rail. As shown in the figure, the side formwork 5 is generally formed in a broken-circuit shape with a wall 5a and a fixed part 5b, and is arranged parallel to both roadside ends with the walls 5a facing each other. Ru.

The joint frame stopper 1 is attached to the engaging portions 3b, 3 of both formwork hanging bodies 3.3'.
The portion b is engaged with the upper end portion of the wall 5a of the side formwork 5, and is constructed in such a manner that the wall 5a is sandwiched between the main body portion 3a and the outer edge portion 3c.

In the above configuration, an example of use will be explained as follows.

In FIG. 1, part A is a block where concrete is being poured, and part B is a block where concrete will be poured next. Now that we are about to finish today's concrete pouring, we will set the construction joints by attaching the joint frame stopper 1 to the engaging part 3.
b and 3b were hung horizontally on the walls 5a of the formwork 5 on both sides.

As a result, since the joint frame stopper 1 is configured to sandwich the wall body 5a between its main portion 3a and outer edge portion 3c, it does not move due to the frictional force. In particular, the more force is applied to the joint frame support 2, the greater the frictional resistance, and it will not move.

However, the lower joint frame 8 was placed on the roadbed 4 of block A during pouring.
is arranged in contact with the joint frame support 2. An upper joint frame 9 is arranged on the lower joint frame 8, and a plurality of slip bars 10, 10... are placed between both joint frames 8 and 9 at predetermined intervals in the longitudinal direction of the joint frame 8... to be placed.

After that, cement concrete is poured in close proximity to the joint frame, and the surrounding area is manually leveled using slip par lO, and then the surface finishing machine on the rail 7 is moved to finish it flat.

As a result, the joint frames 8.9 are fixed in position by the joint frame stops 1 and do not move, and the joint frame stops 1 are simply engaged with the walls 5a of the side forms, resulting in a simple structure. The operation is extremely simple, and more time can be used effectively than with conventional methods, which can be expected to increase the amount of work per day.

FIG. 4 is a plan view showing the second embodiment. This embodiment differs only in that the joint frame support is expandable and retractable.
It has the same configuration as the embodiment. Therefore, the same members as in the first embodiment are designated by the same reference numerals.

The joint frame support 2 is formed into a rectangular tubular shape and is divided into two parts at the longitudinal center, and a relay body 2a is arranged between the two opposing parts, and the relay body 2a is connected to the pipes of both joint frame supports 2.2''. Hole 2b, 2b
It is slidably fitted into the '.

Reference numeral 2d in the drawings indicates a pin hole.

In this embodiment with the above configuration, even if the opposing distances of the formworks 5.5 on both sides are different, the joint frame supports 2.2' on both sides can be expanded and contracted via the relay body 2a, so one can be used for many purposes. The relay body 2a and the joint frame supports 2, 2'
Each bottle hole 2d with.

It can be fixed by fitting a pin into 2d, or by a fixing screw 2e.

Further, the symbol 2C in FIG. 5 is a spacer, which is the relay body 2.
This is a member for replenishing the amount that has become thinner because it is fitted into the pipe hole 2d of the joint frame support 2.

In addition, in FIG. 4, the joint frame support 2' on the right side of the drawing
It is also possible to omit this and attach the formwork assembly 3 to the fabric end of the relay body 2a in the drawing.

FIG. 6 is a plan view showing the third embodiment. In this embodiment, the same members as those in the previous embodiment will be described using the same reference numerals.

The joint frame supports 2, 2' are formed into rectangular tube shapes, and the other small diameter support 2' is slidably inserted into one of the pipe holes 2b.
It is constructed so that its overall length can be adjusted, and is fixed with a fixing screw 2e.

Therefore, arms 2f are attached to both ends of the joint frame supports 2, 2'.
, 2f are attached to formwork hooking bodies 3, 3, respectively.

The arms 2f, 2f are perpendicular to the joint frame supports 2, 2', and their tips are directed toward the next pouring block B, and the formwork hooking body 3.3 is located on the outside of the tips of the arms 2f, 'lf. It is attached to the department.

Therefore, the formwork hook 3.3 is in a manner that moves away from the joint frame supports 2, 2', as a result of which the rail 7.7
A machine such as a surface finisher advances to a position where it straddles the joint frame support 2, and mechanical work can be performed without the formwork hanging assembly 3 getting in the way.

The present invention is not limited to the above configuration, and the design can be changed as appropriate. For example, a diagonal reinforcing arm may be provided between the joint frame support 2 and the formwork hanging assembly 3.

Further, the joint frame support 2 and the formwork hanging assembly 3 can be made detachable by screwing or the like, or can be rotatably attached by pivoting. Furthermore, the cross section of the support body 2 is not limited to a rectangular tubular shape.

〔effect〕

Since the present invention is configured as described above, it has the following excellent effects.

(b) The structure is extremely simple, so it is easy to operate.
The production cost is also low.

(II) Just hang the formwork hanging body to the formwork on both sides,
The installation work can be completed in a short time by one person, which previously required several people for a long time, so there is no loss in labor costs, and there is less time to play with the machine, which means that a considerable amount of work can be done per day. It is possible to increase the number of pours.

[Brief explanation of the drawing]

The drawings relate to the present invention; FIG. 1 is a plan view of a joint frame stopper, FIG. 2 is a front view, FIG. 3 is a sectional view taken along line AA in FIG. 1, and FIG. 4 shows a second embodiment. FIG. 5 is a sectional view taken along line BB in FIG. 4, and FIG. 6 is a plan view showing the third embodiment.

Claims (1)

[Claims] Attach formwork hooks symmetrically to both ends of the joint frame support,
A joint frame fastener characterized in that the formwork hanging body is configured to form a hooking part on the top and outside of the main body part, and the hooking part is hooked to the upper part of the wall of the side formwork.