JPH0533481A - Lever foot plate clamp - Google Patents

Abstract

PURPOSE:To surely secure a foot plate by holding the foot plate with the use of a retaining leaf spring in such a condition that the foot plate is fixed to a foot pipe so that the foot plate is depressed for clamping the same, and by laying a retaining ring therebetween. CONSTITUTION:A lever foot plate clamp 3 is disposed between a foot plate 2 set on a foot pipe 1 and a foot plate 2 adjacent thereto, and a retaining leaf spring is set on both foot plates 2. Then, the retaining leaf spring is compressed while a clamp labor 7 is pulled up for rotation so as to engage an engaging hole 6 onto an engaging pin 10 for clamping. Then, a retainer 14 is depressed in order to prevent disengagement. Hook parts of adjacent retainer plates 8 are coupled together by means of a retaining ring 4. In order to release the clamp, the retainer 14 is pulled up so as to remove the clamp lever 7 from an engaging pin 10, overcoming the resilient force of the leaf spring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever scaffolding plate clamp for pressing a scaffolding plate of a temporary scaffolding material used for temporary scaffolding.

[0002]

2. Description of the Related Art Conventionally, when a scaffolding board is laid and a working floor is laid by constructing a frame with a single pipe scaffolding material, the scaffolding board is simply tied to a pipe with a wire (iron wire).

[0003]

In this case, the wire is wound around the pipe, then twisted and tightened, and the excess length is cut and bent. Next, when removing the scaffolding plate, it was necessary to cut the wire with a cutter, remove the entangled wire, and put away the cutting scraps collectively, which took a lot of time and effort to attach and detach the scaffolding plate. In addition, since the wire cannot be reused, it is expensive.

An object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to provide a lever scaffolding plate clamp which enables quick and easy work of attaching and detaching the scaffolding plate and which can be repeatedly used many times.

[0005]

SUMMARY OF THE INVENTION The present invention is a lever scaffolding plate clamp for mounting and fixing a scaffolding plate on a scaffolding pipe, which is rotatably supported by a lower end portion of an arm and has a first opening on the open end side. Clamp lever provided with the engaging means and capable of being attached to the lower end side of the scaffolding pipe, a holding plate arranged on the upper end side of the arm, and a holding plate spring arranged below the holding plate. Second engaging means provided on the arm and engageable with the first engaging means of the clamp lever, and a guide plate attached to the arm and allowing the clamp lever to press the engaging pin. A spring, a stopper that is rotatably attached to the arm and that maintains an engaged state when the first engaging means and the second engaging means are engaged with each other, and that is disposed on the scaffold plate; With a presser ring that is hung between adjacent presser plates It is those with a.

[0006]

According to the present invention, the scaffold plate can be attached to and detached from the scaffold pipe simply by disengaging the first engaging means and the second engaging means of the clamp lever. Can be done quickly and easily. Further, when the first engaging means is engaged with the second engaging means, since it is guided by the guide leaf spring, the clamp lever can be fast and surely fixed. Further, since the engagement state is held by the stopper plate in the state where the first engagement means and the second engagement means are engaged, the disengagement of the clamp lever can be reliably stopped. Further, in a state in which the scaffold plate is fixed on the scaffold pipe by the lever scaffold plate clamp of the present invention, the scaffold plate is pressed by the press plate spring and the press plate is clamped from above, and the press ring is pressed from one clamp to the other. Since it is hung on the clamp of, the scaffolding board can be securely fixed. Further, the lever scaffolding plate clamp of the present invention can be used repeatedly many times, so that the cost is low.

[0007]

The present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 is a front view showing an embodiment of a lever scaffolding plate clamp according to the present invention, FIG. 2 is a side view of FIG. 1, FIG.
4 is a sectional view taken along line III-III and line IV-IV of FIG. 1, FIG. 5 is a front view of the lever scaffolding plate clamp showing a state in which the scaffolding plate is opened, FIG. 6 is a side view of FIG. 5, and FIG. It is a perspective view which shows the state which clamped the scaffolding board with the lever scaffolding board clamp. Note that in FIG. 7, the spacing of the scaffolding plates is drawn wider than the actual spacing for easy understanding. A plurality of scaffolding boards 2 are laid out on the scaffolding pipe 1. The lever scaffolding plate clamp 3 for mounting and fixing the scaffolding plate 2 on the scaffolding pipe 1 is
An arm 4 and a clamp lever 7 rotatably supported at the lower end of the arm 4 via a pin 5 and having an engaging hole 6 as a first engaging means on the open end side are provided. I have it. At the upper end side of the arm 4, a holding plate 8 formed so as to bend upward is arranged. A pressing plate spring 9 is provided below the pressing plate 8. On the open end side of the arm 4, as shown in detail in FIG. 3, an engaging pin 10 as a second engaging means which has an inclined portion 10A and is engageable with the engaging hole 6 of the clamp lever 7 is provided. A leaf spring for guiding a clamp lever, which is fixedly mounted on the open end side of the arm 4 via a rivet 11 at a position further to the right of the engaging pin 10 and is arranged with a slight gap from the arm 4. And 12 are provided. At a position on the left side of the engagement pin 10 on the open end side of the arm 4, a stopper plate 14 pivotally supported via a pin 13 and attachable on the engagement pin 10, and an adjacent lever scaffold are provided. A holding ring 15 is provided so as to be stretched between the holding plates 8 of the plate clamp.

The clamp lever 7 is curved so that it can be attached to the lower end side of the scaffolding pipe 1, and a draw hole 16 is formed at the open end. further,
At both ends of the holding plate 8, hook portions 8A that are hooked on the ends of the holding ring 15 arranged on the scaffolding plate 2 are bent and formed. The length between the hook portions 8A of the holding plate 8 is made slightly shorter than the distance between the adjacent holding rings 15, so that the hook portion 8A of the holding plate 8 has the holding ring 1A.
When hooked on the end portion of 5, the scaffolding plate 2 is configured to be pulled by a force in the width direction (arrangement direction of the pressing ring 15).

Next, the work of clamping the scaffolding plate 2 on the scaffolding pipe 1 using the lever scaffolding plate clamp 3 will be described. First, the lever scaffolding plate clamp 3 is provided between the scaffolding plate 2 placed on the scaffolding pipe 1 and the scaffolding plate 2 adjacent thereto.
Is inserted and arranged, and the holding plate spring 9 is located below the holding plate 8.
Are placed on both scaffolding boards 2. Next, a tool is inserted from the gap between the scaffold plates 2 and hooked in the pull hole 16 to pull up the clamp lever 7, and at the same time, presser plate 8 is pressed.
Is pressed with a foot or the like to compress the pressing leaf spring 9, and the clamp lever 7 is rotated as if it is pulled up to engage the engaging hole 6 with the engaging pin 10 and clamp. That is, when the clamp lever 7 is pulled up, the leaf spring 12 serves as a guide, and the clamp lever 7 moves up along the arm 4 and up the inclined portion 10A of the engagement pin 10, so that the engagement pin 6 moves to the engagement pin 10. Engage. At this time, due to the lever action of the clamp lever 7, the upper pressing leaf spring 9 is compressed to press the scaffolding plate 2 and the clamping force of the clamp can be held, and a reliable clamp is obtained. In addition, the stopper plate 14 that was raised is pin 13
The engaging pin 10 is rotated by pushing it down like
If it is covered with the above, the clamp lever 7 can be prevented from coming off the engagement pin 10. After that, if the hook portions 8A of the adjacent pressing plates 8 are connected by the pressing ring 4, the scaffolding plate 2 can be surely pressed.

When the clamp is to be removed, the hook 14A of the stopper 14 is pulled to raise the stopper 14, and the clamp lever 7 is removed from the engaging pin 10 against the elasticity of the leaf spring 12. , The clamped state is released.

In the above description, the clamp lever is provided with the engaging hole and the arm is provided with the engaging pin. However, the clamp lever may be provided with the engaging pin and the arm may be provided with the engaging hole. You may make it engage by engaging means other than an engaging hole and an engaging pin.

[0013]

As described above, according to the lever scaffolding plate clamp of the present invention, the arm is rotatably held at the lower end of the arm, and the first engaging means is provided at the open end side. A clamp lever that can be attached to the lower end side of the scaffolding pipe, a holding plate arranged on the upper end side of the arm, a holding plate spring arranged on the lower side of the holding plate, and provided on the arm, Second engaging means engageable with the first engaging means of the clamp lever, a guide leaf spring attached to the arm and capable of pressing the clamp lever toward the arm, and rotatable with respect to the arm. Attached to the first engaging means and the second engaging means and holding the engaged state in the engaged state, and the retainer arranged on the scaffolding plate and bridged between the adjacent holding plates. By having a structure with a presser ring, Not only can the scaffold plate be attached and detached more quickly and easily than in the past, but when the clamp lever is engaged with the second engaging means, the clamp lever is guided by the guide leaf spring, so the clamp lever can be quickly and reliably attached. Can be fixed to. Further, when the clamp lever is engaged with the second engaging means, the clamp lever prevents the clamp lever from coming off, so that the clamp lever can be reliably prevented from coming off and the scaffolding plate clamp of the present lever scaffolding plate clamp. With the scaffolding plate fixed on the pipe, the scaffolding plate is pressed by the presser plate spring and is clamped by the pressing plate from the top.Furthermore, since the pressing ring is hung from one clamp to the other clamp, the scaffolding plate is Can be securely fixed. Furthermore, since this lever scaffolding plate clamp can be repeatedly used many times, it has various excellent effects that it can be manufactured at a lower cost than the conventional one.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a lever scaffolding plate clamp according to the present invention.

FIG. 2 is a side view of FIG.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a front view of the lever scaffolding plate clamp showing a state in which the scaffolding plate is released.

FIG. 6 is a side view of FIG.

FIG. 7 is a perspective view showing a state where the scaffold plate is clamped by the lever scaffold plate clamp.

[Explanation of symbols]

 1 Scaffold pipe 2 Scaffold plate 3 Lever Scaffold plate clamp 4 Arm 6 Engagement hole 7 Clamp lever 8 Presser plate 9 Presser plate spring 10 Engagement pin 12 Leaf spring 14 Clasp 15 Presser ring

Claims (1)

Claim: What is claimed is: 1. A lever scaffold plate clamp for mounting and fixing a scaffold plate on a scaffold pipe, wherein the lever scaffold plate clamp is rotatably supported by a lower end portion of an arm and has a first engaging member on an open end side. A clamp lever provided with coupling means and capable of being attached to the lower end side of the scaffolding pipe, and a holding plate arranged on the upper end side of the arm,
A holding plate spring arranged below the holding plate, a second engaging means provided on the arm and engageable with the first engaging means of the clamp lever, and attached to the arm. A guide leaf spring capable of pressing the clamp lever to the arm side, and a rotatably attached to the arm,
Of the engaging means and the second engaging means are held in an engaged state, and a retaining ring arranged on the scaffolding plate and stretched between adjacent retaining plates. Lever scaffolding board clamp characterized by that.