JPH0637045Y2 - Hanging equipment for construction of pedestrian border blocks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of Invention] (Industrial field of application) This invention is for constructing an inverted T-shaped pedestrian road boundary block, hoisting it, and lowering it to the laying position laid with crushed stone. Related to hanging equipment.

(Prior Art) Up to now, a clamp-type hanger has been generally used for construction of a pedestrian road boundary block. However, in this type of clamp-type hanger, when a crane or the like is in a suspended state, a cross arm is used. Is in the squeezed state (closed state), and if you drop it to just above the hoisting block, you cannot lift it unless you manually open the cross arm. The same applies when removing at the laying position.

In addition, since the height position of the crossing arm is not determined when the arm is lowered, there is a problem in that it takes time to position the arm even when the arm is abutted against the top end of the block in a closed state or expanded.

(Problems to be solved by the invention) The present invention has been made in view of the above-mentioned actual circumstances,
Basically it is a clamp type, but the opening and closing operation of the cross arm can be easily performed with a single lever that incorporates a plate cam, and a constant opening can be maintained, and positioning is performed when the cross arm descends. It is intended to provide a hanger provided with a means for enabling the above.

[Structure of the Invention] (Embodiment) Explaining the embodiment of the following drawings, in FIG. 1, reference numerals 1 and 1 denote clamp arms that open and close in a clamp manner, and the cross arms 1 and 1 are vertically attached to the crotch portion. Right-angled triangular split gall plates 2 and 2 are provided to hold the spaces. That is, this split gable board 2,2
The two vertical surfaces of are matched to form an isosceles triangular gable plate 2W.

Then, a hook-shaped notch 3 is formed at the apex portion of one of the split gall plates 2, and a rotary plate cam that matches the hook-shaped notch portion 3 via a holder 7 at the apex portion of the other split gall plate 2 corresponding thereto. 4 is pivotally mounted, and a rotary lever 6 in a perpendicular direction is provided at the outer end of the pivot 5 of the rotary cam 4. That is, FIG. 2 (a),
As shown in (b), the rotating plate cam 4 that matches the hook-shaped notch 3 is rotated while being in contact with the hook-shaped notch 3 by the turning operation of the turning lever 6, and the split gall plate 2 is removed. As a result, the gable plate 2W is cracked and the cross arms 1, 1 open as a result.

Further, a suspension plate 1a is provided at the lower end of the cross arms 1, 1 and a positioning locking plate 8 in the height direction is provided at a predetermined position on the inner middle of the pedestrian road boundary block of the present invention. The construction hanger is constructed.

In addition, reference numeral 9 in the drawing denotes a suspension ring that also serves as a connection of the cross arms.

(Operation) Now, in order to perform the work of laying the pedestrian road boundary block using the hanging device of the present invention having the above-described structure, as shown in FIG. 3, (a) first, the rotating lever 6 is operated. By the action of the rotary plate cam 4, the cross arms 1, 1 are further extended from the vertical position, and the upper suspension ring 9 is suspended on the hook of the crane. Then, it is lowered from above the walkway boundary block 10 placed on the ground.

(B) Then, the cross arms 1, 1 further descend so as to wrap the block 10, and when the positioning locking plate 8 hits the upper surface of the flat plate portion of the block 10, the descending is stopped.

(C) When the rotary lever 6 is operated in the opposite direction, the rotary plate cam 4 is housed in the hook-shaped notch 3 and the vertical faces of the split gall plates 2, 2 are aligned to form the gable plate 2W. 1 closes to the vertical position and the hanging plate 1a blocks at its lower end
The hanging plate 7 and the positioning locking plate 8 are inserted into the notches 10a provided at the lower edges of both side walls of the flat plate portion corresponding to the position of the center of gravity of the flat plate portion, and are held by the hanging plate 7 and the positioning locking plate 8.

(D) Then, in this state, after lifting up and moving to the laying position, it is lowered, and the rotating lever 6 is operated again to further spread the cross arms 1, 1 from the vertical position by the action of the rotary plate cam 4 and from the block 10. Unleash (state of (b) again),
Raise it as it is (state (a) again).

In addition, the above is a notch in the lower edge of both side walls of the flat plate part of the block 10.
Although the case in which the cutout portion 10a is provided is shown, it is needless to say that the bottom surface of the block 10 needs to be supported by a square bar in the case where the cutout portion 10a is not provided.

[Effects of the Invention] As described above, the present invention secures a constant width of the crossing arms by the lifting tool itself, that is, an opening distance between the arms in a vertical state, and maintains the distance even when the arms are spread by the rotating plate cam. can do.

Therefore, it is not necessary to open or close the arm by hand for the lifting work, and it is possible to easily open and close the above range by one operation of the turning lever.

When the block is lowered from above the block with a crane or the like, the positioning locking plate 8 provided at a predetermined inner intermediate portion of the cross arm abuts on the flat plate portion of the block to perform positioning all at once.

From these facts, the workability becomes extremely good.

[Brief description of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a perspective view, FIG. 2 shows the opening and closing operation of a cross arm, (a) is in a closed state,
(B) is an enlarged front view of each part in the open state, and FIG. 3 shows the operating state according to the work procedure. (A) is a state in which it is lowered toward the block in the open state, (B) is a state in which positioning is completed. ,
Each front view of (C) is a closed state, that is, a state of holding the block, and (D) is a state of being lifted. 1 ... Cross arm, 1a ... Hanging plate, 2 ... Split plate, 3 ... Hook type notch, 4 ... Rotating plate cam, 5 ... Axis, 6 ... Rotating lever, 7 ... Holder, 8: Positioning locking plate, 9: Suspension ring.

Claims (1)

[Scope of utility model registration request] 1. A right-angled triangular split gall plate 2, 2 for holding the cross arms 1, 1 in a vertical state at a crotch portion of the cross arms 1, 1 that open and close in a clamp manner, and one of them is provided. A hook-shaped notch 3 is formed at the apex portion of the split gall plate 2, and a rotary plate cam 4 matching the hook-shaped notch 3 is pivoted through a holder 7 at the apex portion of the other split gall plate 2 corresponding thereto. Wear
A rotary lever 6 in a direction perpendicular to the pivot 5 of the rotary plate cam 4 is provided, a hanging plate 1a is provided inward at the lower end of the cross arms 1 and 1, and a positioning lock is provided at an inner intermediate predetermined portion. A suspension tool for construction of a pedestrian road boundary block, which is characterized in that a plate 8 is provided oppositely.