JPH066150Y2 - Hanging clamp - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement of a suspension clamp used when lifting and moving a heavy object such as a concrete block.

[Conventional technology]

Conventionally, in order to firmly hold the object to be lifted, the holding teeth of the suspension clamp are fixed to the pressure contact portion of the holding arm to the object to be lifted.

[Problems to be solved by the device]

If the object to be lifted sways when it is held and lifted by this suspension clamp and the object is shaken, even if it is firmly locked, the locking plate is fixed to the gripping arm. There is a drawback that the object to be lifted slides from the lifting clamp during the lifting operation because the lifting object and the locking plate locked to the sliding object slide, the locking position shifts, and the locking is weakened.

[Means for Solving the Problems]

 The gist of the present invention will be described with reference to the accompanying drawings.

A lifting clamp body a in which the holding arms 4 facing each other are pressed against the object to be lifted 3 by lifting the hanging part 1 with a lifting tool 2 such as a wire, and a heavier object can be lifted and moved with a stronger gripping force.
Locking plate 6 in which locking teeth 5 are attached to the pressure contact portion 4'of the holding arm 4 of
In the hanging clamp provided with, the locking plate 6 is configured to be mounted on the holding arm 4 by at least two mounting shafts A and B, and the locking plate 6 is held by the one mounting shaft A as a fulcrum. 4 is rotatably attached to the pressure contact portion 4'of
Is formed with a mounting receiving portion 7 that engages the other mounting shaft B, and the width of the mounting receiving portion 7 is formed to be slightly larger than the diameter of the mounting shaft B, so that the locking plate 6 is slightly supported by the mounting shaft A as a fulcrum. The present invention relates to a suspension clamp, characterized in that it is mounted and fixed so as to be freely rotatable in play.

[Action]

The object to be lifted 3 is held by the pressure contact portion 4'of the holding arm 4 and the hanging portion 1 is held.
When the object is lifted, the pressure contact portion 4 ′ of the holding arm 4 is more strongly pressed against the object to be lifted 3 as the object to be lifted 3 is heavier, and the locking teeth 5 of the locking plate 6 are locked to the surface of the object to be lifted 3. The object to be lifted 3 will be lifted.

At this time, when the object 3 to be lifted is rocked, the locking board 6 responds to the rocking and the mounting shaft B and the mounting receiving portion 7 thereof.
The locking plate 6 can be rotated by a margin (the amount by which the play can be rotated), and the locking position (eating position) between the object to be lifted 3 and the locking plate 6 can be slid as in the conventional example. It does not change (does not change), and the locking strength does not weaken.

This is the same as the fact that the suspension clamp main body can be slightly rotated with respect to the locking plate 6, and the hanging object 3 is adapted to swing by this rotatable amount, and the locking teeth 6 Prevents the object from sliding relative to the surface of the object to be lifted 3.

〔Example〕

The locking board 6 of FIG. 2 is provided with a mounting hole 8 into which the mounting shaft A is fitted, and locking teeth 5 are arcuately provided around the lower end so as to surround the mounting hole 8 and An embodiment is shown in which a mounting receiving portion 7 (a clearance of about 10 mm) is formed by cutting out a central portion in a U shape.

Two pieces of this locking board 6 are attached to the pressure contact portions 4'of the tips of the respective holding arms 4.
Of the mounting shaft A is rotatably attached to the holding arm 4 by a bolt of the mounting shaft A, and a retaining nut 9 is screwed to the bolt. A case where a certain bolt is arranged and the retaining nut 10 is screwed is shown.

The locking plate 6 shown in FIG. 3 has locking teeth 5 formed on the circumferential surface of a circular plate material, a mounting hole 8 is provided in the center, and a circular arc hole slightly elongated in the circumferential direction near the periphery of the mounting hole 8. A case where a plurality of mounting portions 7 are provided to form the mounting receiving portion 7 (gap of about 15 mm) is illustrated.

Two pieces of this locking board 6 are arranged on the front surface and the rear surface of the tip end pressure contact portion 4'of each holding arm 4, which are rotatably attached to the holding arm 4 by the bolts of the mounting shaft A and pulled out by these bolts. The lock nut 9 is screwed on, the bolt of the mounting shaft B is arranged in the arc hole of the mounting receiving portion 7, and the retaining nut 10 is screwed on. The drawing shows a case where a perfect circle bolt hole is drilled on the holding arm 4 side and an arc hole to be the attachment receiving portion 7 is provided on the locking board 6 side. May be formed on the holding arm 4 and the bolt hole of the locking plate 6 may be formed in a perfect circle that is aligned with the mounting axis B.

Although the structure of the suspension clamp is not limited to the suspension clamp shown in the drawing, reference numeral 11 in the drawing is a suspension arm, 12 is a pivot shaft, 13 is a connection shaft, 14 is an upper connection shaft, and 15 is a suspension wheel. . Further, there is a sister product of a type in which two ordinary holding arms 4 and lifting arms 11 are configured, but in this case, the locking board 6 is provided between the two holding arms 4 and 4.

[Effect of device]

The present invention allows the main body to slightly rotate with respect to the locking plate even if the object to be lifted is lifted by holding the object with the holding arms, and therefore the object can be pivoted by the amount of this rotation. Since the locking teeth of the locking plate are prevented from sliding on the surface of the object to be lifted by that much, the locking position (biting locking position) between the object to be lifted and the locking plate slides ( As a result, the locking strength is not weakened, and as a result, the hanging clamp has excellent practicality and can safely lift and move the object to be lifted.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a front view of the product of the present invention, FIG. 2 is a sectional view of an essential part, FIG. 3 is a sectional view of an essential part of another example, and FIG. FIG. A / B ... Mounting shaft, a ... Suspension clamp body, 1 ... Suspension part,
2 ... Lifting tool, 3 ... Lifted object, 4 ... Clamping arm, 4 '...
… Pressing contact part, 5 …… Locking teeth, 6 …… Locking plate, 7 …… Mounting receiving part.

Claims (1)

[Scope of utility model registration request] 1. A hoisting portion 1 is hoisted by a hoisting tool 2 such as a wire to press the opposing holding arms 4 against the object to be hoisted 3,
In a hanging clamp, in which a heavier object is lifted and moved with a stronger gripping force, a pressure plate 4'of a holding arm 4 of a lifting clamp body a is provided with a locking plate 6 with locking teeth 5 attached thereto.
Is configured to be attached to the holding arm 4 by at least two attachment shafts A and B, and the locking plate 6 can be freely rotated to the press contact portion 4 ′ of the holding arm 4 with one of the attachment shafts A as a pivot. Shafted,
A mounting receiving portion 7 for engaging the other mounting shaft B is formed on the locking board 6, and the width of the mounting receiving portion 7 is formed to be slightly larger than the diameter of the mounting shaft B, so that the locking board 6 is mounted. A hanging clamp characterized by being attached and fixed so that it can be slightly rotated around A as a fulcrum.