JPH0575271U - Hook socket device - Google Patents

Abstract

(57) [Abstract] [Purpose] In a socket device for fixing ropes for suspenders such as hooks, the wedge action due to rope tension is the same as before, and the dimension from the top surface of the wedge socket to the hook pin is shortened to achieve a compact size. Allow configuration. [Structure] Wedge 2 is contained in wedge socket 4, rope 1 is sandwiched between the inside of wedge socket 4 and the outside of wedge 2, and wedge socket pin 6 penetrates wedge socket 4 and wedge 2. The hole through which the wedge socket pin 6 of the wedge 2 penetrates is an elongated hole 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a socket device for fixing a rope of a hanging tool such as a hook in a cargo handling vehicle such as a mobile crane.

[0002]

[Prior Art]

 FIG. 6 shows a vertical cross-sectional view of a conventional hook and socket device, and FIG. 7 shows a partial cross-sectional view taken along the line 70-70 in FIG. In the figure, a rope a stretched from a sheave (not shown) at the tip of the boom is wrapped around a wedge b and fastened by a clamp c. The wedge b is contained in the wedge socket d, and when the downward load is applied to the hook e, and the downward load acts on the wedge socket d, the wedge b acts as a wedge and is indicated by a1 and a2 of the rope a. The part of the rope a is further fastened so that the rope a is not loosened. The wedge socket d is connected to a suspender case shaft g via a wedge socket pin f, and the suspender case shaft g is rotatably connected to a suspender case i via a thrust bear link h. A hook e is rotatably connected to the lower portion of the hanging case i via a hook pin j. k is a wire rope stopper.

[0003]

[Problems to be solved by the device]

 In the above conventional hook and socket device, the function of fixing the hook by the rope tension is sufficient, but there are problems that the structure is complicated, the number of parts is large, and the vertical dimension is long, and it is simpler and more compact. There was a strong demand for things.

[0004]

[Means and Actions for Solving the Problems]

 The present invention has been made in view of the above, and it includes a wedge socket inside and a wedge, and a rope is sandwiched between the inside of the wedge socket and the outside of the wedge, and the wedge socket pin includes the wedge socket and the wedge. By making the hole through which the wedge socket pin of the wedge penetrates, the wedge action by rope tension is the same as before, and the dimension from the upper surface of the wedge socket to the hook pin is shortened and compact. It enables various configurations.

[0005]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical sectional view of a hook and socket device according to the present invention, and FIG. 2 is a partial sectional arrow view of 20 to 20 in FIG. In the figure, a rope 1 extending from a sheave (not shown) at the tip of a boom is fastened by a clamp 3 around a wedge 2 almost once. The wedge 2 is contained in the wedge socket 4, and when a downward load is applied to the hook 5 and the downward load is applied to the wedge socket 4, the rope 1 is sandwiched between the outside of the wedge 2 and the inside of the wedge socket 4. As a result of the wedge action, the portions indicated by 11 and 12 of the rope 1 are more and more secured so that the rope 1 is not loosened.

FIG. 3 shows a perspective view of the wedge 2, and 14 is an elongated hole. FIG. 4 is a perspective view of the wedge socket 4. The wedge socket 4 is connected to a suspender case shaft 7 (a perspective view is shown in FIG. 5) via a wedge socket pin 6, and the suspender case shaft 7 is rotatably suspended via a thrust bear rig 8. It is connected to the ingredient case 9. The hook 5 is rotatably connected to the lower portion of the hanging case 9 via a hook pin 10. Reference numeral 13 is a wire rope stopper.

The most characteristic feature of this embodiment is that the wedge 2 is provided with an elongated hole 14 and is located on the axis center line of the hanging tool case shaft 7. Through the hole 16 of the bifurcated portion 15, the hole 17 of the wedge socket, and the elongated hole 14 of the wedge, and the hanging case 9 is provided with a window 18, and the rope 1 is wound around the wedge 2 and Insert the wedge socket pin 6 through the window 18 from above, insert the wedge socket pin 6 into the fork 15 of the suspender case shaft 7 while enclosing it in the groove 21 of the wedge socket 4 once, and secure the rope 1 with the clamp 3. That is. Since the elongated hole 14 of the wedge 2 is provided, when a downward load is applied to the hook 5 and a tension is applied to the rope 1, the wedge 5 of the wedge 4 can be moved up and down by the length of the elongated hole 14. As a result, rope 1 is more and more tied up. In this embodiment, the distance L ₁ between the upper surface 19 of the hanger case 9 and the hook pin 10 is much shorter than the conventional one and is compact.

[0008]

[Effect of the device]

 Since the present invention is constructed as described in detail above, the wedge action due to the rope tension is the same as the conventional one, and the dimension from the upper surface of the wedge socket to the hook pin is shortened to enable a compact structure.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view taken along line 20-20 of FIG.

FIG. 3 is a perspective view of a wedge.

FIG. 4 is a perspective view of a wedge socket.

FIG. 5 is a perspective view of a suspender case shaft.

FIG. 6 is a vertical sectional view of a conventional hook and socket device.

FIG. 7 is a partial cross-sectional view taken along the line 70-70 in FIG.

[Explanation of symbols]

 1 Rope 2 Wedge 3 Clamp 4 Wedge Socket 5 Hook 6 Wedge Socket Pin 7 Lifting Equipment Case Shaft 9 Lifting Equipment Case 10 Hook Pin 14 Long Hole 18 Window 19 Top Surface

Claims (1)

[Scope of utility model registration request] 1. A socket device for fixing a rope of a hanging tool such as a hook, wherein a wedge 2 is placed in a wedge socket 4.
Inside the wedge socket 4 and the wedge 2
The rope 1 is sandwiched between the outside and the wedge socket pin 6 so as to penetrate the wedge socket 4 and the wedge 2, and the hole through which the wedge socket pin 6 of the wedge 2 penetrates is an elongated hole 14. A load applied to the hook 5 by the tension of the hook socket device.