JPS64294Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Objective) The present invention relates to a bridge construction tool used with a remote control device inserted into a space of temporary concrete frames separated by a predetermined distance.

As a remote control device, it is inserted into a space of temporary concrete frames that are placed side by side at a distance that is too narrow for people to enter and work, and performs work far away from that space.
For example, a device disclosed in Japanese Patent Application No. 56-130773 (Japanese Unexamined Patent Publication No. 58-34764) was recently developed by the inventor of the present invention. This device is equipped with a rotary drive shaft that extends to a distant position, converts the rotation of this rotary drive shaft into a direction that intersects the longitudinal direction of this shaft, and transmits it to the screw.
This allows the screws to be installed far away from the inner surface of the temporary concrete frame. According to the device related to Japanese Patent Application No. 56-130773 (Japanese Unexamined Patent Publication No. 58-3474),
Screws can be installed very easily in remote locations in fairly narrow spaces.

The present invention is a bridge structure developed to be used in conjunction with such a remote control device, and its purpose is to be inserted into a space of temporary concrete frames that are arranged side by side at fairly narrow intervals, so that work can be carried out at a distance within the space. By supporting a long remote control device capable of pendulum movement, it is possible to make the use of the remote control device more convenient in a narrow space.

(Configuration) The configuration of the present invention is a bridge structure that is placed over a temporary concrete frame in order to maintain a long remote control device inserted into the space, which performs work at a distance within the space of the temporary concrete frame separated by a predetermined distance. The device comprises legs that are temporarily fixed to the concrete temporary frame, and a support that supports the upper end of the remote control device so that its lower end can swing toward the inner surface of the concrete temporary frame. It is.

The drawings are based on the present invention in Japanese Patent Application No. 130773 (1982).
This is an example in which the present invention is applied to a remote control device according to Japanese Patent Publication No. 34764, and the bridge structure according to the present invention will be specifically explained below with reference to the example shown in this drawing. First, for convenience of explanation, the remote control device will be explained in parentheses, and then the bridge will be explained in parentheses.

() Fig. 1 is a perspective view showing the entire device, Fig. 2 is a front view with the cover 23 and the lid of the box body 14 removed, and Fig. 3 is a cross-sectional plan view thereof. Here, 11 is a rotary drive shaft, 12 is a long operation box housing the rotary drive shaft 11, 13 is a height scale part for detecting the screw mounting height position provided on the peripheral wall of the operation box 12, and 15 is a rotation A worm 16 provided at the lower end of the drive shaft 11 is a worm foil for converting the rotation direction of the rotation drive shaft 11 into a direction perpendicular to the longitudinal direction of the rotation drive shaft 11. Reference numeral 17 denotes a screw to be attached to the temporary concrete frame, and in this example, this screw 17 has a hexagonal head 17a and a tapered neck 17.
b, a collar-shaped stopper 17c, and a male screw 1
7d. 18 is a screw fixing part attached to the worm wheel 16 with a bolt 19, 20 is a hexagonal hole provided in the screw fixing part 18, 21 is a magnet, and the head 17a of the screw 17 is made of a magnetic material. This is for temporarily fixing the screw 17 when the screw 17 is in use. When the rotary drive shaft 11 is driven to rotate with the screw 17 provisionally fixed as described above, this rotation is decelerated and direction-changed via the worm 15 and the worm foil 16, and the screw fixing portion 18 and this The signal is transmitted to the screw 17 fixed to the screw 17, so that the screw 17 rotates. Therefore, if the exposed tip of the screw 17 is slightly bitten into the temporary concrete frame, the screw 17 will move forward in the direction of arrow A shown in FIG. 3 as the screw 17 rotates.

() Now, let me explain about the bridge fittings. In the case of the bridge trestle 26 in this example shown in the drawings, a rectangular frame portion 2 is provided in the central portion as shown in FIGS. 1 and 4.
6a is provided, and leg portions 26b, 2 are provided at both ends.
6bb is provided. This leg portion 26b, 2
In this example, 6bb is sharpened to be temporarily fixed to the upper end of the temporary frame 24, but instead of this, a hole is provided in the flat plate leg and a screw or the like is inserted through the hole to attach it to the upper end of the temporary frame 24. It may be temporarily fixed.
Reference numeral 26e denotes a screw serving as a support portion, which is screwed into the upper end of the device M to support the device M. As a result, the lower end of the device M can swing toward the inner surface of the temporary frame 24, that is, in the direction of arrow E and in the opposite direction of arrow E, as shown in FIG.

In addition, in the above example, the frame part is
26a is supported from both sides, but instead, it may be supported from one side as long as the device M can be supported in a pendulum motion.

Then, with the height adjusted by inserting the screw 26e of the frame 26a into the desired position of the device M, the device M is moved in the direction of the arrow D as shown in FIG.
By moving the upper end, screw the lower end of device M
Make a pendulum movement in the direction of arrow E using 6e as a fulcrum,
This pendulum movement causes the tip of the screw 17 to bite into the temporary frame 24.

(Effects) If the device M is made to swing in a pendulum motion using the bridge tool 26 in this manner, the screw 17 can be inserted into the inner surface of the temporary frame 24 very easily. If a bridge tool is not used, in order to drive the screws 17 into the inner surface of the temporary frame 24, it is necessary to hold the device M with your fingers and move it in the direction of the arrow E, which can be difficult. be. Furthermore, as in the example shown in the drawings, it is extremely difficult to carry out this work at the upper end of the concrete temporary frame 24, which is located at a high position where the footing for the worker is not good and the worker has to leave. In the case of the present invention in which this point bridge frame 26 is provided, it is very convenient to perform operations such as easily inserting a screw in a narrow space and at a far position in the space just by making the above pendulum movement. It is. This is the effect of the present application.

(Effects of Example) By the way, when the bridge structure 26 of this example shown in the drawings is used, the legs 26b and 26bb may not be aligned with the arrow F shown in FIG.
The device M rotates in the direction shown by the two-dot chain line, and the device M
b, there is a risk of tilting around 26bb. If the upper end of the device M, which is the side closer to the operator's hand, is even slightly tilted, the vicinity of the screw 17, which is located considerably lower than the legs 26b and 26bb, which are the fulcrum, will be tilted by many times that amount. In this regard, if the level gauge 22 is provided on the bridge structure 26 as in the present example shown in the drawings, there is an advantage that the inclination can be reliably detected and the bridge corrected immediately. That is, if it is tilted, it will not be possible to install the screw 17 in the correct mounting position, and even if the height position is accurately determined with the height scale part 13, the advantages of the height scale part 13 will not be fully realized. Problems arise when they are unable to perform to their full potential. When the point level 22 is provided, the above-mentioned problem does not occur because the inclination of the device M can be reliably detected and the inclination can be immediately corrected. still,
In the case of the example shown in the drawings, once the tip of the screw 17 has been bitten into the inner surface of the temporary frame 24 using the pendulum motion described above, it is time to move the hand-held electric drill 25 as shown in FIG. 11 and drive it. Of course, it may be driven by other means than the hand-held electric drill 25. As a result of such driving, rotation is transmitted to the screw 17 via the worm 15, worm wheel 16, and screw fixing portion 18, and the screw 17 automatically attaches to the temporary frame 24 by self-tapping.
The screw 17 advances inward until the stopper 17c comes into contact with the surface of the temporary frame 24. During this time, the bridge member 26 supports the device M, making the work easier. In this example, once the screws 17 have been installed, the box 27, which is a concrete buried body, is lowered into the temporary concrete frame 24 as shown in FIG. Let it hang.

By the way, BOX 2, which is a concrete buried body,
7. The hooking screw 17 is required to be installed in a predetermined position with fairly high precision. This is because if the box 27 is installed in a shifted position, it is impossible to change the box 27, which is firmly buried in the concrete, to its normal position unless the concrete is destroyed. Therefore, Special Application No. 130773 (Sho 56-130773)
The device according to Japanese Patent Publication No. 58-34764 is provided with a height scale portion 13 in order to mount the screw 17 at an accurate position. In connection with this, the following various considerations have been made in the bridge fitting 26 of this example shown in the drawings in order to mount the screws 17 in accurate positions.

The reason why the legs 26b and 26bb are sharp is to facilitate temporary fixing and to allow the device M to hang down in the vertical direction as much as possible. In other words, if the bottom of the leg is flat, if there is any unevenness such as concrete slag or depressions on the upper end of the temporary frame 24, the leg will be affected by the unevenness and the device M will not move in the true vertical direction. There is a possibility that the screw 17 may not be installed in the correct position because the screw 17 does not hang down. If the point legs 26b, 26bb are made sharp, they are hardly affected by unevenness and can be attached regardless of the condition of the upper end of the temporary frame 24. Further, the length of leg 26b is considerably shorter than the length of leg 26bb. Therefore, although the pendulum movement is made, the pendulum movement in the direction of the arrow E is slight because of the provision of the temporary frame 24, as is clear from FIG. This is to prevent the installation height position of the screw 17 from shifting due to the pendulum movement. Moreover, the bridge fittings 26
The reason why the frame portion 26a is provided is to ensure that the device M is supported by the screws 26e from both sides of the frame portion 26a, and the legs 26 as shown in FIG.
This is to make the axes M' of the screws 26bb and 26bb overlap or be close to each other.

(Summary) The present invention has been specifically explained in accordance with the embodiments above, but in short, the present invention is based on the technical matter stated in the first claim of the utility model registration, and is a remote control device. By making the remote control device capable of pendulum movement, the use of the remote control device in a narrow space can be made more convenient.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the entire device, Fig. 2 is a front view showing the internal structure of the box of the device, Fig. 3 is a cross-sectional plan view of Fig. 2, Fig. 4 is a perspective view of the bridge structure, and Fig. 5 is a perspective view of the entire device. The figure is a side view showing how to use the bridge equipment, and FIG. 6 is a side view showing the concrete buried body being installed. In the figure, 24 shows a concrete temporary frame, 26 shows bridge fittings, 26b shows a leg part, and 26e shows a screw (supporting part).

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A long remote control device that performs work at a distance within a space of temporary concrete frames that are spaced a predetermined distance apart in order to be inserted into the space and spanned over the temporary concrete frames. A bridge trestle, comprising legs temporarily fixed to ends of the concrete temporary frame, and a support part supporting the upper end of the remote control device so that its lower end can swing pendulumly toward the inner surface of the concrete temporary frame. A bridge tool. 2. The bridge structure according to claim 1 of the utility model registration, characterized in that a spirit level is provided and the leg portions are sharp.