JPH0828036A - Hang lamp - Google Patents

Abstract

PURPOSE:To make it sure to clamp or remove easily and swiftly without using a wrench or the like by pivoting turnably a lower jaw which clamps a rod-like article, and what is more, pressing the lower jaw with a turnable presser piece and holding its state. CONSTITUTION:A spacing between an upper jaw 2 and a lower jaw 3 of a hang lamp 1, which are used to assemble a temporary scaffolding or mount a temporary lighting, is preliminarily adjusted with an adjusting screw 9 in conformity with the diameter of a rod-like article A. Then, the rod-like article A is clamped with the upper jaw 2 and the lower jaw 3 and a presser piece 4 is lowered, centering on a rotary shaft 46, thereby pushing up the lower jaw 3 against the force of a spring 12 and pressing the rod-like article A so that it may be clamped. Furthermore, a fit-in claw 5 is engaged with a rotary shaft 4b in a clamped state, thereby holding the clamped state of the claw 5. When a clamp is removed, the presser piece 4 is pulled up by operating in reverse mode, thereby removing the clamp. This construction makes it possible to remove the rod-like article positively without using any tool, such as a wrench Wand thereby reduce working hours.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hang clamp which is useful in the field of construction, particularly in the assembly of stage equipment.

[0002]

2. Description of the Related Art Conventionally, wire rods and clamps have been used for assembling temporary scaffolds for constructing buildings such as the stage outdoors or indoors, but tools such as ratchets and spanners have been used to compact the clamps. Had to be used and required a great deal of time to set up and remove.

When installing or suspending temporary lighting pipes, temporary curtains or temporary rails in a theater,
The same construction work as above was required, and this also required a great deal of work time.

[0004] Also, the hanging operation of the sleeve curtain and the tool curtain is done by a method of tying each one with a string, but especially in the work of hanging the tool curtain, for example, a string is laid at a pitch of 30 cm at a width of 18 meters. Since it is attached, the work of connecting to each one here requires a lot of labor and time.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a hang clamp that can be surely and quickly attached to and detached from a rod-like object without using a tool such as a ratchet or a spanner.

A second object of the present invention is to provide a hang clamp which can be attached / detached to / from a rod-like object with one hand and with one touch.

A third object of the present invention is to provide a stage hang clamp useful for attaching or suspending temporary lighting pipes, temporary sleeves, temporary tool curtains or temporary rails on the stage.

[0008]

According to the present invention, a gripping portion composed of upper and lower jaws for firmly gripping a rod-shaped object, a spring connecting the one jaw in an opening direction, and a jaw that resists the contracting force of the spring. The present invention relates to a hang clamp, comprising a pressing portion for pressing in a closing direction, a locking portion for locking the pressed state of the pressing portion, and a connecting portion that can be connected to other members.

It is preferable to attach a lower jaw, a pressing portion, a locking portion and a connecting portion to the extension portion of the upper jaw. This allows the overall structure to be simple and robust.

The pressing portion is a linear shape when pressed to the lower end of the lower jaw, but when it is not pressed, the two metal pieces have a dogleg shape so that they can be bent in a dogleg shape. A structure in which they are connected by a rotating shaft provided at a refraction point can be adopted. By adopting this structure, even if the locking state of the locking portion is released, the pressed state is not immediately released and the safety is high.

The pressing portion has a pressing lever formed by extending a metal piece adjacent to the lower jaw, and a second lever for changing the linear state of the two metal pieces on the pressing lever into a dogleg shape. It is preferable that a lever is attached.

The locking portion may have a structure having a fitting claw that fits with the rotary shaft to hold the pressing portion in a straight line and a first lever for releasing the fitting.

It is preferable that the fitting claw in the locking portion is automatically moved in the fitting direction when the pressing of the first lever for releasing the fitting is released.

In the hang clamp of the present invention, it is preferable to additionally provide an adjusting mechanism capable of adjusting the distance between the upper jaw and the lower jaw when grasping the rod according to the diameter of the rod-shaped object.

The first lever and the second lever are preferably provided on the same side of the hang clamp. Since the worker handles the temporary lighting pipe, the temporary sleeve, the temporary tool curtain or the temporary rail with his dominant arm, he / she can operate the lever of the hang clamp with the other hand, so that he can operate the two levers with one hand. Therefore, it is preferable that the first lever and the second lever are on the same side.

With respect to the relationship between the grip portion and the connecting portion, it is preferable that the center of the connecting portion be on the center line of the grip portion. As a result, in the hang clamp, the center of the grip portion and the line passing through the center of the connecting portion coincide with the vertical direction. If you use a hang clamp to hang a large number of sleeve curtains or tool curtains on the stage, these curtains are lined up at the front and back at intervals of 10 cm or 15 cm. The positional relationship shifts,
The hang clamp moving up and down is caught on the rod-shaped object that lowers the front and rear sleeves and tool curtains, and it is not possible to move up and down smoothly, and if the thing that was caught naturally comes off, it will be a temporary force. It is very dangerous because it takes a lot of time.

In order to avoid this danger, it is preferable to consider that the center of the grip portion and the center of the connecting portion coincide with the vertical direction as described above, but at the same time, when the outer shape of the entire hang clamp moves up and down, It is preferable to have a shape that does not catch on the hanging object next to it. Therefore, it is preferable to take care so that there are as few horizontal structural surfaces as possible.

Further, since the diameter of the rod-shaped object for suspending the sleeve curtain or the tool curtain is not necessarily one, there is an adjusting portion for controlling the width of the gripping portion in accordance with the diameter of the rod-shaped material. It is preferable to attach it. The adjusting unit may move the pressing unit up and down with an adjusting screw.

It is preferable that the upper and lower jaw surfaces are provided with a slip prevention mechanism for improving the gripping condition. The anti-slip mechanism may be provided with unevenness on a line or unevenness in a dot shape.

[0020]

An embodiment of the present invention will be described with reference to the drawings. 1 is a side view of the embodiment product, FIG. 2 is a side view seen from the opposite side, FIG. 3 is a front view thereof, FIG. 4 is a perspective view thereof, and FIG.
It is sectional drawing.

The upper jaw 2 is integrated with the extension portion 1 of the upper jaw 2, and the extension portion 1 has a shape such that no structural surface is generated in the horizontal direction, and the sleeve curtain is hung adjacent to the front and rear. It has a structure that makes it difficult to get caught in hanging objects such as furniture and tool curtains, and has rounded corners to prevent workers from being injured.

The upper jaw 2 has a L-shaped cross section, so that the rod-like object A is sandwiched by the lower jaw 3. On the surface of the upper jaw 2, a group of linear grooves 2a,
The groove 3a is provided in the groove to minimize slippage between the groove and the rod-shaped object A.

The lower jaw 3 is supported on the extension portion 1 by a support shaft 1a, and constitutes a pressing portion in a perpendicular shape passing through the centers of the rod upper object A, the upper jaw 2, and the lower jaw 3 to form a straight line. The rotating shaft 4a supports a pressing portion for applying pressure and releasing it in a V shape. Further, the lower jaw 3 is connected to the extension portion 1 via the spring 12 to itself or to the extension portion 3b thereof, so that the lower jaw 3 is prevented from being pressed by the pressing portion.
The lower jaw 3 is adapted to descend downward when is released.

The pressing portion is composed of an upper metal piece 4 and a lower metal piece 7, and the upper metal piece 4 and the lower metal piece 7 are rotatably connected by a rotating shaft 4b.

The locking portion is fitted around the fitting claw 5 having the fitting notch 5c and the supporting shaft 5a thereof by the first lock release lever 10 so that the fitting notch 5c fits the rotary shaft 4b of the pressing portion. The structure is such that it can be locked in and released from the locked state, and for safety, the fitting claw 5 is always applied with force in the fitting direction by the spring 5b.

The fitting notch 5 of the engaging portion is the rotary shaft 4 of the pressing portion.
Even if it deviates from b, the pressing state of the pressing portion is not immediately released. When the second lock release lever 6 is pushed outward around the shaft 6a, the upper metal piece 4 and the lower metal piece 7 of the pressing portion are
It changes from a straight line shape to a V shape and releases the pressurized state. In this way, the double lock system is extremely safe.

Each of the first lock release lever 10 and the second lock release lever 6 can be operated by one finger. Further, if these levers are provided on one side as shown in the figure, they can be operated only by the left hand.

Since not all the diameters of the rod-shaped object A are constant, it is preferable that the distance between the upper jaw and the lower jaw can be adjusted to some extent so that even if there is some change in the diameter, it can be sufficiently dealt with. Therefore, in the present embodiment, for this reason, the support shaft 7a is protruded from the lower end of the lower metal piece 7, and this is provided on the extension 1 on a perpendicular line passing through the centers of the upper jaw, the rod-shaped object, the lower jaw, and the connecting portion. Passing through the support receiving hole 11 which is vertically long and thin,
The lower end of the lower metal piece 7 is configured to be movable up and down by the adjusting screw 9.

The connecting portion is formed by cutting a screw hole 8 at the lower end of the extension portion 1 on a perpendicular line passing through the respective centers.

Although the connecting portion has the simplest structure as an example, it goes without saying that an arbitrary connecting structure can be used depending on the structure of the partner to be connected.

The embodiments of the present invention will be exemplified below. (1) A gripping part composed of upper and lower jaws for firmly gripping a rod-shaped object, a spring connecting the one jaw in an opening direction, a pressing part for pushing the jaw in a closing direction against the contracting force of the spring, A hang clamp comprising a locking part for locking the pressed state of the pressing part and a connecting part that can be connected to another member. (2) The hang clamp according to (1) above, wherein the upper jaw portion is extended, and a lower jaw portion, a pressing portion, a locking portion and a connecting portion are attached to the extended portion. (3) The pressing portion is linear when pressed against the lower end of the lower jaw, but when not pressed, the two metal pieces have a dogleg shape so that they can be folded in a dogleg shape. The hang clamp according to (1) or (2) above, wherein the hang clamp is connected by a rotating shaft provided at a bending point. (4) The above-mentioned item (3), wherein the locking portion has a fitting claw that fits with the rotating shaft and holds the pressing portion in a straight line, and a first lever for releasing the fitting. Hang clamp. (5) The hang according to (4) above, wherein the fitting claw in the locking portion is automatically moved in the fitting direction when the pressing of the first lever for releasing the fitting is released. Clamp. (6) In the pressing portion, a pressing lever formed by extending a metal piece adjacent to the lower jaw from the rotation axis, and for changing the linear state of the two metal pieces on the pressing lever into a dogleg shape The previous item (1), (2), which is equipped with a second lever,
The hang clamp according to (3), (4) or (5). (7) The previous paragraph (1), which is equipped with an adjustment mechanism that can adjust the distance between the upper and lower jaws when gripping them depending on the diameter of the rod-shaped object.
The hang clamp according to (2), (3), (4), (5) or (6). (8) The first lever and the second lever are provided on the same side, (1), (2), (3), (4),
The hang clamp according to (5), (6) or (7). (9) The above-mentioned (1), (2), (3), in which both are arranged so that the center of the connecting portion is on the center line of the gripping portion.
The hang clamp according to (4), (5), (6), (7) or (8). (10) The above-mentioned item (1), in which an adjusting part is attached to control the width of the gripping part according to the diameter of the rod-shaped object,
(2), (3), (4), (5), (6), (7),
The hang clamp according to (8) or (9). (11) The hang clamp according to the above (10), wherein the adjusting part moves the pressing part up and down with an adjusting screw. (12) A slip prevention mechanism is provided on the surfaces of the upper and lower jaws to improve the gripping condition.
(2), (3), (4), (5), (6), (7),
The hang clamp according to (8), (9), (11) or (11). (13) The hang clamp is for stage assembly. (1), (2), (3), (4), (5), (6),
(7), (8), (9), (10), (11) or (1
2) The hang clamp described above.

[0032]

【effect】

(1) With the hang clamp of the present invention, it is possible to reliably and quickly attach / detach to / from a rod-like object without using a tool such as a ratchet or spanner, and it has been possible to greatly reduce the working time. (2) When pressing the pressing part to the lower end of the lower jaw, it is straight, but when not pressed, it bends two metal pieces in a dogleg shape so that it can be bent in a dogleg shape. By connecting with the rotary shaft provided at the point, the first lock and the second lock mechanism can be provided, and the safety can be made extremely high. (3) In the hang clamp of the present invention, the first lever,
By providing the second lever on the same side, the attachment / detachment to / from the rod-shaped object can be performed with one hand and with one touch. (4) A connected body in which two hang clamps of the present invention are connected using a connecting portion has the same function as a universal clamp, and can be used for assembling a scaffold or the like like a conventional universal clamp. (5) When suspending sleeves, tool curtains, etc. on the stage, by attaching the tool curtain etc. to a dedicated pipe beforehand and attaching the hang clamp of the present invention to this pipe, tool conversion and stage setup time Could be greatly shortened.

[Brief description of drawings]

FIG. 1 is a side view of an example product of the present invention.

FIG. 2 is another side view of the example product of the present invention.

FIG. 3 is a front view of an example product of the present invention.

FIG. 4 is a perspective view of a product according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view of an example product of the present invention.

[Explanation of symbols]

A rod-like object 1 extension 1a support shaft 2 upper jaw 2a linear groove on upper jaw surface 3 lower jaw 3a linear groove on lower jaw surface 3b lower jaw extension 4 upper metal piece on pressing portion 4a rotation to rotatably connect lower jaw and pressing portion Shaft 4b Rotating shaft for rotatably connecting the upper metal piece and the lower metal piece of the pressing portion 5 Fitting claw 5a Rotating shaft for rotating the fitting claw by the first lock release lever 5b Spring 5c Fitting notch 6 Second Lock release lever 6a Rotating shaft 7 Lower metal piece of pressing part 7a Support shaft 8 Screw hole as connecting part 9 Adjustment screw 10 First lock release lever 11 Support receiving hole 12 Spring

Claims (8)

[Claims] 1. A gripping portion composed of upper and lower jaws for firmly grasping a rod-shaped object, a spring connected in a direction to open the one jaw, and a pressing force for pushing the jaw in a closing direction against the contracting force of the spring. A hang clamp comprising: a portion, a locking portion for locking the pressed state of the pressing portion, and a connecting portion that can be connected to another member. 2. The hang clamp according to claim 1, wherein the upper jaw portion is extended, and a lower jaw portion, a pressing portion, a locking portion and a connecting portion are attached to the extended portion. 3. The two metal pieces are formed in a dogleg shape so that the pushing portion is linear when pressed against the lower end of the lower jaw but can be folded in a dogleg shape when not pressed. The hang clamp according to claim 1 or 2, wherein the hang clamps are connected by a rotary shaft provided at a curved point. 4. The locking portion has a fitting claw that fits with the rotary shaft to hold the pressing portion in a straight line, and a first lever for releasing the fitting. Hang clamp described. 5. The pressing portion includes a pressing lever formed by extending a metal piece adjacent to the lower jaw, and two pressing levers are provided on the pressing lever.
The hang clamp according to claim 1, 2, 3 or 4, further comprising a second lever for changing the straight state of the two metal pieces into a dogleg shape. 6. The hang clamp according to claim 1, further comprising an adjusting mechanism for adjusting a distance between the upper jaw portion and the lower jaw portion when gripping the upper jaw portion and the lower jaw portion according to a diameter of the rod-shaped object. 7. The hang clamp according to claim 1, wherein the first lever and the second lever are provided on the same side. 8. The two are arranged so that the center of the connecting portion is on the center line of the grip portion.
The hang clamp according to 6 or 7.