JPH01104591A - Hanging chain device - Google Patents

Abstract

PURPOSE: To easily and quickly adjust the length of a suspended chain with the one hand operation by providing a circular hole for passing through of a suspended chain in an upper part of a lower-half plate surface of a chain ring to be hooked on a crane hook. CONSTITUTION: In the case of adjusting the length of a suspended chain 6 in response to the kind of an article to be hoisted by a hoisting hook 5, a chain 6 is lifted and the hooking condition of a vertical ring part 6b fitted in a vertical groove hole 8 formed in a lower part of a lower-half plate surface of a chain ring 1 is released so as to position the hoisting chain 6 in an upper circular hole 7 communicated with the vertical groove hole 8. In this condition, the chain 6 is moved inside the circular hole 7 at need in the longitudinal direction, and a vertical ring part 6b of the chain 6 positioned at a desirable length is inserted into the vertical groove hole 8 so as to position each lateral ring part 6a provided in front and rear of the vertical ring part 6b is positioned in a front surface and a rear surface of the vertical groove hole 8 at a lower part thereof. Thereafter, the chain 6 is pulled downward, and the vertical ring part 6b is hooked on the vertical groove hole 8 for fixation so as to adjust the length of the chain 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hanging chain device that can freely adjust the length of a hanging chain hooked to a crane hook.

[Prior Art] Conventionally, a hanging chain connected to a hanging hook at the lower end and a chain connected to a hanging hook for adjusting the length of the chain at the lower end are separately connected to the same chain ring. , and the chain ring was hung on a crane hook. When adjusting the length of the hanging chain depending on the type of object to be hung, the chain ring at a predetermined position of the hanging chain is fixed by being hooked to the hanging hook.

[Problems to be Solved by the Invention] However, the conventional adjustment method described above has the problem of being time-consuming and extremely troublesome.

The present invention has been made to solve these conventional problems, and aims to provide a suspension chain device that allows the length of the suspension chain to be adjusted extremely quickly and easily.

[Means for Solving the Problems] The present invention provides a circular hole through which a hanging chain can move movably through the upper part of the lower half plate surface of a chain ring that is hung on a crane hook, and a lower part of the circular hole. A vertical groove hole into which the vertical ring part of the hanging chain is inserted is continuously drilled in each of the holes, and a hanging chain is attached to the side of the chain ring with a hanging hook fixed to the lower end via a shackle. The above problem was solved by connecting and fixing the suspension chain and passing the hanging chain through the circular hole.

[Function] According to the present invention having the above configuration, the hanging chain passed through the circular hole is moved appropriately, and the vertical ring portion of the hanging chain is placed on the lower surface of the circular hole at a desired position. By fitting the chain into the vertical groove connected to the vertical groove, the length of the hanging chain can be adjusted because the vertical ring part is hooked and fixed to the vertical groove so that it cannot be handled easily.

[In the figure of the embodiment, 1 is a chain ring that is hung on the crane hook 2, and a hook hanging hole 3 is bored in the upper half plate surface of this chain ring 1 to hang the crane hook 2. Further, the upper end of a hanging chain 6 having a hanging hook 5 fixed to the lower end is connected to the side surface of the chain ring 1 via a shackle 4.

Furthermore, a circular hole 7 having a diameter sufficient to allow the horizontal ring portion 6a of the suspension chain 6 to pass through is provided at the upper part of the lower half plate surface of the chain ring 1, and a hole 7 is provided continuously at the lower part of the circular hole 7. A vertical groove hole 8 into which a vertically oriented ring portion 6b of a hanging chain 6 is inserted is bored, and the hanging chain 6 can be freely moved through the circular hole 7 and can be inserted into any vertical direction. The orientation ring portion 6b is configured so that it can be inserted into and latched into the vertical groove hole 8. The diameter of the circular hole 7 is larger than the width W of the chain ring 6' constituting the suspension chain 6, and the width of the vertical groove hole 8 is larger than the ring diameter of the chain ring 6'. In addition, the depth of the vertical groove hole 8 is equal to the width W of the chain ring 6'.
It is structured more deeply.

Therefore, when adjusting the length of the hanging chain 6 according to the type of object to be hung from the hanging hook 5, the hanging chain 6 is lifted and inserted into the vertical groove hole 8 to be latched. Release the hanging state of the vertical ring portion 6b and attach the hanging chain 6.
is positioned in the circular hole 7, and then the hanging chain 6 is moved back and forth as appropriate in the circular hole 7, and the vertical ring part 6b of the hanging chain 6 at the desired length is circularly moved. By fitting into the vertical groove holes 8 connected to the lower part of the hole 7, the horizontal ring parts 6a located at the front and back positions of the vertical ring part 6b are respectively positioned on the front and rear surfaces of the lower part of the vertical groove hole 8. Therefore, due to the downward pulling force of the hanging chain 6, the vertical slot 8
The vertical ring portion 6b is firmly latched and fixed so that it cannot be removed, and the length of the hanging chain 6 is adjusted and fixed.

[Effects of the Invention] Since the present invention is as described above, the length of the hanging chain is adjusted by moving it within the circular hole, so the length of the hanging chain can be adjusted with one hand. Extremely easy to operate
This can be done reliably and quickly, and the hanging chain can be reliably latched and fixed to the chain ring.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, and FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a perspective view of the main part, FIG. 4 is an enlarged sectional view of the main part, and FIG. Figure 5 is a plan view of the chain ring. In the figure, 1 is a chain ring, 2 is a crane hook, 4 is a shackle, 5 is a hanging hook, 6 is a hanging chain, 6b is a vertical ring part, 7 is a circular hole, and 8 is a vertical groove hole. October 13, 1986 Figure 1 Figure 2

Claims (1)

[Claims] There is a circular hole in the upper part of the lower half plate surface of the chain ring that is hung on the crane hook, through which the suspension chain can move, and a vertical ring part of the suspension chain is continuous to the bottom of the circular hole. Further, a hanging chain having a hanging hook fixed to the lower end is connected and fixed to the side surface of the chain ring via a shackle, and the hanging chain is inserted into the circular hole. A hanging chain device characterized by penetrating through the.