JPH079960Y2 - Support equipment for concrete inserts - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete insert supporting device for supporting an insert to be embedded in a concrete product such as a U-shaped groove and a basin in a mold when molding the concrete product.

[0002]

2. Description of the Related Art A conventional technique is shown in FIG. In FIG. 3, reference numeral 1 is a mold, and a through hole 2 with which an insert 4 abuts is formed at a predetermined position of the mold 1, and a bolt 3 is inserted into the through hole 2 from the outside (left side). The screw part 3 a is projected into the frame 1. Insert 4 above
Is made of a metal material in a cylindrical shape with a bottom, and has an internal thread 4a formed on the inner periphery thereof. The internal thread 4a is screwed into the threaded portion 3a of the bolt 3 to form the outer end surface 4 of the insert 4.
The mold 1 is clamped by b and the head 3b of the bolt 3 to vertically support the insert 4 in the mold 1.

[0003]

In the above-mentioned prior art, since the head 3b of the bolt 3 supporting the insert 4 is close to the mold 1, the rib 1a of the mold 1 can be used with a normal tool such as a spanner. However, there is a drawback that it is difficult to engage it with the head portion 3b due to such obstacles, or the rotation angle becomes small and it takes time to mount the insert 4. Also, the outer end surface 4b of the insert 4 with respect to the axial center of the insert 4
If the orthogonal accuracy of the insert is incorrect or if the insert 4 is loosely screwed into the bolt 3, water containing cement during molding is inserted into the insert 4 and its outer end surface 4b.
From the inside, the insert 4 is fixed to the bolt 3,
There was a defect that the female screw 4a was clogged. It is an object of the present invention to obtain a novel supporting device for concrete inserts which overcomes the above-mentioned drawbacks.

[0004]

In order to achieve the above-mentioned object, the present invention is configured as follows. That is,
A large-diameter flange is formed at the front end of the rod-shaped body, and a support shaft projecting forward from the axial center of the flange is provided, and a screw is formed on the outer periphery of the front end of the support shaft. An O-ring is fitted to the outer periphery of the base of the support shaft, a rod-shaped handle protruding in the radial direction is provided at the rear end of the body, and a tool engaging portion protruding rearward from the handle is provided. The engaging portion has a configuration in which the cross-sectional shape of the outer periphery is formed in a polygonal shape.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, FIG. 1 is a sectional view showing an embodiment of the present invention,
FIG. 2 is a cross-sectional view of an essential part showing its usage state. In FIG. 1, 5 is a supporting device. The supporting device 5 is formed as follows. That is, the support shaft 7 made of a bolt is inserted from the left into the pipe-shaped body 6 having the large-diameter flange 6a at the front end (right end). The support shaft 7 is fixed by welding (a) by engaging the left end head portion 7a with the left end surface of the body portion 6. The front portion 7c of the shaft portion 7b is projected forward (leftward) from the axial center portion of the flange 6a.

A screw 8 is formed on the outer circumference of the front end portion (right end portion) of the front portion 7c of the support shaft 7, and is located at the base portion of the front portion 7c, that is, at the intermediate portion between the male screw 8 and the flange 6a. A tubular groove (reference numeral omitted) is formed on the outer periphery of the front portion 7c to be formed, and the O-ring 9 is fitted into the groove. A hexagonal tubular tool engaging portion 10 is coaxially arranged on the rear end surface (left end surface) of the head portion 7a and fixed by welding (a), and a rod shape is provided at the front end portion (right end portion) of the tool engaging portion 10. The handle 11 is penetrated in the orthogonal direction and fixed by welding (c).

In FIG. 2, reference numeral 12 denotes a metal plate frame having a reinforcing rib 12a on the outer side thereof, and a through hole 13 with which the insert 14 abuts is formed at a predetermined position therethrough. The through hole 13 is formed to have a diameter that allows the shaft portion 7b of the support device 5 to be loosely fitted. Further, the insert 14 has a female screw 14a into which the male screw 8 of the supporting device 5 is screwed at the inner deep portion of its axial center.
The opening is formed in a smooth circular hole 14b into which the O-ring 9 of the supporting device 5 is press fitted.

The front portion 7c of the shaft portion 7b of the supporting device 5
Is inserted into the through hole 13 of the form 12 from the outside (left side), and the male screw 8 and the O-ring 9 of the front portion 7c are attached to the form 12
Make it protrude inside. Next, the insert 14 is inserted into the front portion 7c from the inside of the mold 12, the handle 11 is manually operated to rotate the supporting device 5 in the screwing direction, and the male screw 8 thereof is screwed into the female screw 14a of the insert 14. The O-ring 9 is fitted to the circular hole 14 of the insert 14
Press it into b and finally insert a tool such as a wrench into the tool engagement part 10
The support device 5 is tightened by engaging with, and the mold 12 is clamped by the outer end surface 14c of the insert 14 and the flange 6a of the support device 5 to firmly and vertically support the insert 14 in the mold 12.

According to the above-described embodiment, since the handle 11 and the tool engaging portion 10 of the supporting device 5 project outward from the mold 12, the supporting device 5 is obstructed by the ribs 12a of the mold 12 and the like. Without it, it can be rotated easily by hand or by a tool such as a spanner. Further, when the insert 14 is supported by the supporting device 5, the O-ring 9 of the supporting device 5 is pressed against the circular hole 14 b on the opening side of the insert 14 to close the opening of the insert 14. For this reason, water containing cement does not enter into the insert 14 at the time of molding, and the insert 14 is fixed to the support device 5 by the cement or the female screw 14a.
Does not become clogged, and the supporting device 5 can be easily separated from the insert 14 after molding.

[0010]

As is apparent from the above description, the present invention enables the insert to be mounted on the mold quickly and with a large holding force. Further, water containing cement does not enter the insert during molding, the internal thread of the insert is protected, and the support device can be easily separated from the insert after molding.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of an essential part showing a usage state of the present invention.

FIG. 3 is a cross-sectional view of a conventional state of use.

[Explanation of symbols]

 5 Four-limb device 6 Body part 6a Flange 7 Support shaft 7a Head part 7b Shaft part 7c Front part 8 Male screw 9 O-ring 10 Tool engaging part 11 Handle 12 Form 12a Rib 13 Through hole 14 Insert 14a Female screw 14b Circular hole 14c Outer edge

Claims (1)

[Scope of utility model registration request] 1. A large-diameter flange is formed at the front end of a rod-shaped body, and a support shaft projecting forward from the axial center of the flange is provided, and a screw is attached to the outer periphery of the front end of the support shaft. A rod-shaped handle that is formed at the rear end of the body is fitted with an O-ring on the outer periphery of the base of the support shaft, and a tool engaging portion that projects rearward from the handle. And a tool-engaging portion having a polygonal cross-section on the outer periphery.