JPH02269576A - C clamp - Google Patents

Abstract

PURPOSE:To securely bind and support the main body of a concrete formwork and a lid body together without allowing vibration to reduce the binding support force of the main body of the concrete formwork and the lid body by providing at one end of the roughly U-shaped main body of a C clamp a support stand comprising a support member installed therein via an elastic body. CONSTITUTION:A roughly U-shaped C clamp is used at the connecting portion of the main body of a concrete framework with a lid body corresponding thereto, and, concrete is injected into the main body of the concrete formwork as the main body is vibrated by placing of the main body on a vibrating device. In this case, a supporting member 14 is mounted in the support stand 5 of the C clamp via an elastic body 15, and the clamping tool of the C clamp is made to abut to the supporting member 14 via the main body of the concrete framework and the lid body. As a result, even with vibration, the elastic body 15 acts elastically against the vibration so that the C clamp is prevented from detaching from the main body of the concrete formwork and the lid body.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides joint support between a concrete form body and a lid body,
This invention relates to a shako vise used for various types of joint support such as joint support between a drilling machine and a workpiece.

(Prior Art) Conventionally, a shako vise has a substantially U-shaped shako vise body provided with a fastener at one end and a support base simply provided at the other end of the shako vise body.

(Problems to be Solved by the Invention) Conventionally, as described above, in the manufacturing process of the materials to be bonded and supported, especially concrete workpieces, high strength is required for concrete 1 and workpieces. When manufacturing concrete products using concrete formwork and lids, large vibrations were usually applied using a vibrating device.

Due to the synergistic effect of vibration from this vibration device, concrete 1
~The tightening part of the formwork and lid body-- A large deforming force is sometimes applied, and the clamping part of the mold vise may become loose (or the vise itself may be distorted). The joint support force of the Shaco vise was weakened, and there was a risk that the Shaco vise would come off from the concrete formwork and the lid.For this reason, a large and heavy Shaco vise was used, but it was difficult to handle. It was a problem.

In view of these drawbacks, the present invention has been devised to provide an easy-to-handle shank that does not reduce the supporting force of the bonded materials even when vibration is applied to the bonded materials, can reliably bond and support the bonded materials, and is easy to handle. Its purpose is to provide a vise.

(Means for Solving the Problems) A first aspect of the present invention is a tightening tool that is screwed onto one end of a substantially U-shaped shako vise body toward the other end of the shako vise body so as to be slidable in the vertical direction. A support base is provided at the other end of the shank vise body, and a support member is installed inside the shank vise body so as to protrude toward one end of the shank vise body via an elastic body.

Part 2 of the present invention is that in order to prevent the tightening tool of the invention of Part 1 from loosening over time, the tightening tool of the invention of Part 1 and the body of the shako vise have a threaded portion and a polygonal prism portion with a cross-sectional shape inscribed in this threaded portion. A plurality of fixing holes are provided at equal intervals on the circumferential surface of a first ring body having a polygonal hole that fits into the polygonal column portion of the fastener. A first support body is provided in a direction perpendicular to the direction, a second ring body is provided corresponding to the first ring body of the first support body, and the first support body is fixed to the circumferential surface of the second ring body. Fixing holes one less than the number of holes are provided at equal intervals in a direction perpendicular to the diameter direction of the second ring body,
A second support body is provided on one surface side of the second ring body, and includes a sliding member that is vertically slidable along one end of the approximately U-shaped shako vise body. A sliding member is attached to one end of the shako vise body so as to be slidable in the vertical direction, a second support is attached to the shako vise body, and a polygonal shape of the first support is attached to the polygonal column portion of the fastener. At the same time as inserting the hole, screw the threaded part to one end of the Shaco vise body, attach the fastener to one end of the Shaco vise body so as to be able to slide vertically, and attach it to the other end of the Shaco vise body. A support base is provided with a support member protruding toward one end of the body of the mantis shrimp vise through an elastic body, and tightening is performed by connecting the identification hole of the first support member and this fixing member after completion of the work. This is characterized in that a fixing tool is fitted into a fixing hole of the second support body corresponding to the hole to prevent loosening of the tightening tool and the main body of the shank vise.

(for production) The present invention will be described in detail.

When using the shako vise according to the present invention, it can be used in the same way as a normal shako vise. For example, it can be used at the connection point between the concrete 1 formwork body and the lid body corresponding to this concrete formwork body. However, when pouring concrete into the concrete form body, it is customary to place the concrete form body on a vibrating device -1- and perform the pouring while applying vibrations. When vibration is applied by a vibration device, since the support member is attached to the support base of the Shaco vise via an elastic body, the clamping tool of the Shaco vise is attached to the support member and the concrete formwork body and lid body. Since they come into contact with each other through the interposition, even if vibrations are applied, the elastic body acts elastically against the vibrations and prevents the shank vise from coming off from the concrete form body and the lid body.

Moreover, when the shank vise according to the second aspect is used, since the fastener and one end of the shank vise body can be fixed, loosening of the fastener can be prevented.

(Example) Embodiments of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, a mantis shrimp vise 1 according to the first aspect of the present invention has the following configuration.

A cylindrical support piece 4 having a thread groove 3 on the inner circumferential surface toward the other end of the roughly U-shaped shako vise body 2 and toward the other end of the shako vise body 2.
This is provided.

A support stand 5 is provided at the other end of the mantis shrimp vise main body 2, with one side closed and the open side of the cylindrical support stand 5 having a hollow portion 5a facing one end of the mantis shrimp vise wooden body 2. . The support base 5 of this embodiment includes a support member 14 and an elastic body 15, which will be described later.
The bottom part 5b is removably screwed together so that it can be easily attached and removed.

A gripping piece 8 is provided at one end of a threaded rod 7 having a threaded thread 6 on its peripheral surface corresponding to the threaded groove 3 of the support piece 4 so as to be slidable in a direction perpendicular to the axial direction of the threaded rod 7. Fastener 9
This is provided. In this embodiment, a stopper 16 is provided at one end in the longitudinal direction of the gripping piece 8 to prevent it from being pulled out, and a stopper 16a that can be freely inserted and removed is provided at the other end in the longitudinal direction of the gripping piece 8. It can be freely inserted and removed from the rod 7.

The threaded rod 7 of this fastener 9 is screwed into the threaded groove 3 of the support piece 4 to attach the fastener 9 to the support piece 4.

A lid 13 is provided which corresponds to the support base 5 and has an insertion hole 12 in the center.

A support member 14 is provided whose tip corresponds to the insertion hole 12 of the lid 13 and whose base end corresponds to the inner periphery of the support base 5.

An elastic body 15 corresponding to the inner periphery of the hollow portion 5a is inserted into the hollow portion 5a of the support base 5. In this embodiment, the elastic body 15 is made of cylindrical urethane rubber whose diameter is slightly smaller than the diameter of the hollow portion 5a of the support base 5. Furthermore, rubber materials with different thicknesses or rubber materials with different spring coefficients may be used depending on the load. The shape of the elastic body 15 is as shown in FIG.
, ii, or as shown in FIG. 4, a notch hole 15b may be provided from the bottom of the cylinder toward the center, or a cylinder having air bubbles 15C inside may be used. In addition, the material is not limited to rubber, but it is also easy to consider combinations of rubber and iron plates, rubber and ceramics, or other materials such as springs.

A support member 14 is inserted above the elastic body 15 in the hollow portion 5a of the support base 5, and the insertion hole 12 of the lid 13 is fitted to the tip of the support member 14, so that the lid 13 is attached to and removed from the support base 5. It can be set freely. The means for attaching and detaching the lid body 13 of this embodiment is provided with a screw thread 10 on the peripheral edge of the open side of the support base 5.
A corresponding thread groove 11 is provided in the lid 13, and the support base 5 and the lid 13 can be attached and detached by screwing together.

When using the giant clam vise 1 according to the first claim of the present invention,
As shown in FIG. 9, a concrete form body K is placed on a vibration device M, and a lid body corresponding to this concrete form body K is placed on the concrete form body.

Next, the shako vise 1 is attached to the concrete form body at a required location on the periphery of the lid (portion A in the figure) by tightening the clamping tool 9.

Next, concrete C is injected into the concrete form body through the opening DE of the lid, and approximately 3400 cycles of vibration are applied by the vibration device M.

This frequency is changed depending on the processing content.

Further, FIGS. 5 to 8 show an embodiment of a mantis shrimp vise 1' according to the second aspect of the present invention.

In the shako vise 1'' of the present embodiment, the draw rod 7 of the tightening tool 9 of the shako vise 1 is replaced by a shank rod 7'' formed by combining a threaded portion 7a and a polygonal column portion 7b, and a fixing hole 19 is used. A first support 20 having a fixing hole 21 and a second support 26 having a fixing hole 21
After the work, tighten the fixing hole 19 of the first support body 20.
A fixing tool 23 is attached to the fixing hole 21 surface of the second support body 26 corresponding to this fixing hole 19 to prevent loosening.The structure thereof is shown below.

The polygonal column portion 7b of the threaded rod 7' is provided so as to be inscribed in the outer periphery of the wedge portion 7a.

A fastening tool 9' is provided at the tip of the polygonal column portion 7a of the threaded rod 7' and is provided with a gripping piece 8' that is detachably attached.

The first support body 20 is a first ring body which has a polygonal hole 17 in the center corresponding to the polygonal column portion 7b of the threaded rod 7''.
A plurality (9 in this embodiment) of fixing holes 19 are provided at equal intervals in a direction perpendicular to the diameter direction of the first ring body 18. In this embodiment, the polygonal column portion 7b of the threaded rod 7' is a square column, and the polygonal hole 17 of the first ring body 18 is a regular square.

The second support body 26 is the first ring body 18 of the first support body 2o.
A second ring body 22 is provided corresponding to the second ring body 22.
1 ([1i1
A small number (eight in this embodiment) of fixing holes 21 are provided at equal intervals in a direction perpendicular to the diameter direction, and the supporting piece 4 of the shank vise body 2 is attached to one side of the second ring body 22 in the axial direction. A cylindrical sliding member 25 having a notch 24 corresponding to the width of one end thereof is provided.

The sliding member 25 of this second support body 26 is
The second support body 26 is attached to the support piece 4 by fitting it into the support piece 4. At this time, since the notch 24 of the sliding member 25 of the second support body 26 corresponds to the width of one end of the mantis shrimp vise body 2 provided with the supporting piece 4, the rotation of the sliding member 25 with respect to the supporting piece 4 is made. The sliding member 25 is configured to be able to slide vertically along the support piece 4.

The polygonal hole 7 of the first support body 20 is fitted into the polygonal column portion 7b of the threaded rod 7'' of the fastener 9'', and the threaded rod 7
The fastener 9' is attached to the support piece 4 by screwing the threaded portion 7a of the threaded portion 7a into the screw a3 of the support piece 4. At this time, the polygonal column portion 7b of the threaded rod 7'' is attached to the first support. Since the first support body 20 is fitted into the polygonal hole 17 of the body 20, the push rod 7
', and the first support 20 and the second
The support rest 26 can be securely fixed by inserting the fixing tool 23 into both fixing holes 19.21. In addition, when tightening the fastener 9' to screw the threaded keyhole 7° into the threaded groove 3 of the support piece 4, the polygonal column portion 7b of the threaded rod 7'
Since the size is such that it is inscribed in the outer periphery of the threaded portion 7a of the threaded rod 7 corresponding to No. 3, it does not come into contact with the thread groove 3 of the support piece 4, and does not interfere with the tightening work.

Also, the length of the threaded part 7a of the threaded rod 7'' is the length of the vise 1.
” is determined according to the length of the working part.

Therefore, when tightening a wide object (an object with a long working part), the boundary 7c between the threaded part 7a of the screw pJ7' and the polygonal column part 7b moves upward from the support piece 4 of the shako vise body 2. moved to a protruding position, and the first support body 20 is located above the support piece 4 corresponding to the position of this boundary part 7c,
The second support 26 fixed to the first support 20 by the fixture 25 moves upward along the support piece 4. At this time, since the second support 26 is restrained from rotating with respect to the support piece 4, the fastener 9', the first support 20, and the second support 26 are securely fixed, and the fastener 9° never loosens.

In addition, when tightening a narrow object (an object with a short working part), the threaded part 7a of the 7" thread and the polygonal pillar part 7b are
The boundary part 7c with the shank vise main body 2 moves downward in the screw #3 of the support piece 4, but even if the position of this boundary part 7C moves, the first support body 20 7゛ polygonal prism part 7
b to be positioned on the second support body 26, and the first support body 2
0 and the second support body 26 fixed by the fixture 25 remains in the position where it is attached to the support piece 4. At this time, since the second support body 26 is restrained from rotating relative to the support piece 4,
Since the fastener 9' and the first support 20 and the second support 26 are securely fixed, the fastener 9 will not loosen.
Since the threaded portion 7a of the threaded rod 7' is threaded into the threaded groove 3 of the support piece 4, the fastener 9' is securely fixed to the support piece 4.

In this embodiment, since there are nine fixing holes 19 in the first support body 20, they are arranged at intervals of 40'' along the circumferential surface, and the fixing holes 21 in the second ring body 22 of the second support body 26 are arranged at intervals of 40'' along the circumferential surface. Since there are eight fixing holes, they are arranged at intervals of 45 degrees along the circumferential surface, so that both fixing holes 19 and 21 match every 56 along the circumferential surface.

Incidentally, by increasing the number of fixed holes 19 and 21 between both fixed holes, it is easy to reduce the interval at which both fixing holes 19 and 21 meet (to reduce the angle).

In addition, in this embodiment, the number of fixing holes 21 in the second support body 26 is one less than the number of fixing holes j90 in the first support body 20, but the number of fixing holes 19 in the first support body 20 is smaller by one. It is also possible to increase the number of fixing holes 21 of the second support body 26 by one.

Furthermore, in this embodiment, the fixture 23 uses an L-shaped pin. This fixture 23 is not limited to an L-shaped pin, but may be any other fixing means such as a clamp.

Further, the sliding member 25 of the second support body 26 has a cylindrical shape corresponding to the cylindrical support piece 4, but if the support piece 4 is made into a polygonal column shape, the sliding member 25 may also be made into a polygonal column shape. Further, the sliding member 25 may have any shape as long as it can be attached to the support piece 4 so as to be slidable in the vertical direction.

(Effects of the Invention) According to the mantis shrimp vise according to the present invention, a support base is provided at the other end of the approximately U-shaped mantis shrimp vise body with a support member interposed therebetween, so that, for example, When manufacturing a concrete workpiece through the concrete form body and lid, even when concrete is poured into the concrete form body while applying vibration with a vibrating device, it is large and heavy as in the conventional method. Even if you do not use a shako vise, the elastic body acts elastically against the vibration of the vibrating device, so the vibration does not reduce the joint support force between the concrete formwork body and the lid body, ensuring reliable The concrete form body and lid can be connected and supported, and it is easy to handle.

According to the second aspect of the present invention, the first support has a plurality of fixing holes, the second support has one fixing hole less than the number of fixing holes in the first support, By adding both of these to the shako vise according to the first claim, and by configuring the threaded rod by a combination of a threaded portion and a polygonal column portion, loosening during tightening can be prevented.

Further, the application of the Shako vise according to the present invention is not limited to the joint support of the concrete form body and the lid, but can be utilized for various joint support such as joint support of a drilling machine and a workpiece.

[Brief explanation of drawings]

FIG. 1 is a front view of a mantis shrimp vise according to the present invention, FIG. 2 is an enlarged vertical cross-sectional view taken along the line X-X of FIG. 1, FIGS. 3 and 4 are perspective views of another elastic body, and FIG. 5 is a front view of the embodiment according to the second claim, FIG. 6(a) is a plan view of the first support, FIG. ) is a plan view of the second support, (b) is a front view, FIG. 8 is an enlarged exploded perspective view of the main part of the embodiment according to the second claim, and FIG. 9 is a partially broken view of the second support. It is a front view. (Explanation of symbols of main parts) 1, 1°...Shako vise 2...Shako vise main body 5...Support stand 7a...Threaded part 7b...Polygonal column part 9.9゛・... Fastener 14 ... Support member 15 ... Elastic body 17 ... Polygonal hole 18 ... First ring body 19 ... Fixing hole 20 ... First support body 21 ... Fixing hole 22...Second ring body 23...Fixing tool 25...Sliding member 26...Second support M Fig.

Claims (1)

[Claims] 1. A tightening tool (9) that is screwed onto one end of the substantially U-shaped shako vise body (2) and slidable vertically toward the other end of the shako vise body (2). ), and a supporting member (14) is provided at the other end of the shako vise body (2) and is internally provided so as to protrude toward one end of the shako vise body (2) via an elastic body (15). A mantis shrimp vise characterized by being provided with a support stand (5). 2. A fastener having a threaded portion (7a) and a polygonal column portion (7b) with a cross-sectional shape inscribed in the threaded portion (7a) (
9'), and the polygonal column part (7b
) having a polygonal hole (17) that fits into the first ring body (
18) is provided with a first support (20) having a plurality (N) of fixing holes (19) provided at equal intervals in a direction perpendicular to the diameter direction of the first ring body (18); 1 support (20
) corresponding to the first ring body (18) of the second ring body (2
2), and the number (N-1) is one less than the number of fixing holes (19) of the first support body (20) on the circumferential surface of the second ring body (22).
) are provided at equal intervals in a direction perpendicular to the diameter direction of the second ring body (22).
A second support body (26) is provided on one surface side, and the second support body (26) is provided with a sliding member (25) that is vertically slidable along one end of the approximately U-shaped shako vise body (2). 2 supports (26)
The sliding member (25) is attached to one end of the shako vise body (2) so as to be slidable in the vertical direction, the second support body (26) is attached to the shako vise body (2), and the tightening is performed. The polygonal hole (17
) and screw the threaded part (7a) onto one end of the shako vise body (2) so that the fastener (9') can be slid vertically onto one end of the shako vise body (2). Attach it to the
A support base (5) is provided at the other end of the mantis shrimp vise body (2) with a support member (14) protruding toward one end of the mantis shrimp vise body (2) via an elastic body (15). ), and after the tightening work is completed, the fixing hole (19) of the first support (20) and the fixing hole (21) of the second support (26) corresponding to this fixing hole (19) are provided. A mantis shrimp vise characterized in that a fixing member (23) is fitted to prevent loosening of a tightening member (9') and a mantis shrimp vise body (2).