JPS6144797B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hanging type control box for controlling the longitudinal and lateral movements of a machine such as a hoist, in which each switch of a first set of switches comprises:
a first control means movable in a direction perpendicular to the central axis of the non-rotating support cable, actuated in a direction consistent with the direction of movement to occur in the horizontal direction, and for controlling the ascending and descending movements; A second switch located on the first control means relates to a control box actuated by a vertically movable second control means.

Control boxes of this type are used in particular for controlling the movement of hook parts, for example in mobile cranes.

An example of a device equivalent to this type of mechanism is the one disclosed in French Republic Patent No. 2129985. This has often shown defects that prevent it from being located in a position that allows it to move with the moving load.

In particular, the pillar portion for supporting the first operating means prevents the driver from freely moving his arms, and furthermore, the support for the first operating means and the second operating means prevent the driver from freely moving his arms. Since the transmission means connected to the switch is not sufficiently protected against external forces, it has not been possible to eliminate the possibility that external objects may disrupt the operating function.

The present invention aims to remedy the above-mentioned deficiencies, and furthermore provides a control box whose structure is equivalent to the above-mentioned device, which improves operability and safety, and at the same time has a structure that is particularly easy to implement and assemble. It was done for the purpose of

The control box according to the invention has a cylindrical body consisting of an upper part that is engaged with a support cable and a lower part that serves as a handle part;
a first operating means consisting of four pushbuttons arranged at an angle of 90° to each other in a portion located between the two parts of the body and movable in a plane perpendicular to the central axis of the body; a second cylindrical member slidably disposed on the upper portion and having a lower end proximate to the push button;
The structure consists of operating means.

Embodiments of the present invention will be described in detail below with reference to the drawings.

The suspended box of the present invention, which is anchored to one end of the non-rotating support cable 29, is oriented vertically according to its weight, as shown in FIG. 1, as well as in the axial direction of the cable. It is constructed based on a cylindrical hollow body with a rounded central axis VV'.

This body consists of an upper part 2 and a lower part 3, the latter forming the handle part.

The upper end 4 of the upper part is fixed to an annular member 7 having connection parts 8, 8' with the lower end 9 of the cable 29 by means of a predetermined feature not shown.

This fixing means can be used with waterproof packing and can be connected to a fastener such as a clamp 12.

Inside this body, a frame 10 is fixed to an annular member using screws 11 and the like, and this frame 10 holds a first switch set such as switches 13 and 14. This first switch set is used to turn on and off a circuit for controlling the horizontal and vertical movement of a mobile hoist or the like holding cable 29 in a horizontal plane.

Further, a second switch set 19 is similarly provided in the frame 10 near the annular member.
It is used to turn on and off the circuit that controls the vertical movement of the hook part of the mobile hoist when lifting and lowering cargo.

Furthermore, a third switch 31 is arranged at the lower end 47 of the frame, and is adapted to be operated in case of emergency. The body 1 of this device is provided with a set of push buttons 15, 16, etc. arranged at an angle of 90° to each other on its outer surface in an intermediate portion 6 between the upper and lower portions. It is designed to move in a plane perpendicular to the axis VV′.

There are four push buttons to control movement in four directions in the horizontal plane.
The number can be reduced if any of the directions of movement is not required.

Operation transmission surfaces 27 and 28 of the push button above
is provided directly opposite the switches 13 and 14 to switch the switches.
Furthermore, in the case of a device in which the switch cannot be directly driven, a rod may be arranged between the switch and the push button.

In addition, in order to prevent two pushbuttons from being operated at the same time by mistake, a disc 24 is provided within a guide 25 formed on the frame, and a washer 30 to which this disc 24 is connected is used to guide the guide 25.
It can slide freely within 5. This disk 24 is disposed between the motion transmitting surfaces 27, 28, etc. of the push button as shown in FIG. 3, and constitutes a simple and sufficient blocking means.

Surrounding the periphery of the upper part 2 of the body is a cylindrical member 18, which is slidable along its outer surface in both directions relative to its central rest position and is operable for a second switch. It constitutes means 44.

Further, a first opening 22 is formed in the upper part of the body parallel to the central axis VV', and the inner surface 3 of the cylindrical member is
This serves as a passage for an operating protrusion 20 provided at the second switch 19, and the operating protrusion reaches the second switch 19 to switch the second switch 19.

In the rest position of the cylindrical member the switch 19
is inactive, but this position can be ensured by means of a return device.
As a return device, for example, a spring 37 compressible in the direction of the central axis VV' is provided, and both ends of the spring 37 are provided with supports 38 and 39 formed on the body 1 or the frame 10, and an edge 40 provided on the inner surface of the cylindrical member. 41 can be used, but the method is not limited to this.

The support, edge and spring cooperate by virtue of the second opening 36 within which the edge moves and which forms the housing of the spring. It is clear that in this variant it is also possible to arrange the spring between the outer surface of the upper part and the inner surface of the cylindrical member.

In order to enable simultaneous operation of one of the first switches and one of the second switches, the lower end 21 of the cylindrical member is arranged as a circular part located between the push buttons. a knurled portion 33 extending to a lower position;
It has 34.

The cutout portions 42, 43 of the cylindrical member, like the knurled portions 33, 34, surround the push button and provide protection against accidental movement of the push button.

Also, the cylindrical member may be manipulated incorrectly,
A cylindrical cover 23 is preferably provided to cover the upper part 45 of the cylindrical member in order to prevent intrusion from the outside, such as liquid or dust, from passing through the sliding play area. is preferably fixed to the annular member 7 using screws 46 or the like.

In addition, the push button 3 is located at the lower end 5 of the handle.
It is also possible to operate the safety switch 31 by providing the switch 2.

In addition to the advantages of simple construction and high operational safety, this control box is easy to manufacture and assemble using individual parts, and is easy to place and connect to one end of the support cable. The advantage is that it is very easy to do.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a cross section along the central axis VV' of the control box, Fig. 2 is a diagram showing the external appearance of the control box, and Fig. 3 is a diagram showing a cross section in a plane P perpendicular to the central axis of the control box. It is. Explanation of symbols of main parts, 1...Body, 9...
Support cable, 10... Frame, 13, 14
...first switch, 15, 16...push button, 18...cylindrical member, 19...second switch.

Claims (1)

[Claims] 1. For controlling the longitudinal and lateral movements of the machine, in a plane perpendicular to the central axis of a predetermined non-rotating support cable, in a direction corresponding to each of the movement directions in the horizontal direction. a first switch set having respective switches actuated by a movable first actuating means and a second actuating means provided on said first actuating means and actuated by a vertically movable second actuating means; and a second switch provided for controlling said movements of raising and lowering, said control box having an upper part anchored to said supporting cables 9, 20. 2 and a lower part 3 serving as a handle, said first actuating means being at an angle of 90° to each other on a part 6 of the body located between the two parts of said body. four pushbuttons 15, 1 which are arranged so as to be movable in a plane perpendicular to the central axis VV' of the body;
6..., the second operating means 44 is slidably provided on the upper part, and the lower end thereof is located near the push button 1.
A hanging type control box characterized by consisting of 8 parts. 2 a cylindrical cover 23 fixed to said upper part;
is provided around the upper part 45 of the cylindrical member 18, and the lower end 21 of the cylindrical member 18 extends below the push button as a portion 33, 34 formed between the push buttons. A hanging type control box according to claim 1. 3. The first switches 13, 14 were actuated by the push buttons, and the second switch 19 was similarly supported by an annular member 7 holding a cylindrical cover 23 inside the body 1. Cylindrical member 1 placed on frame 10
8. A hanging type control box according to claim 1 or 2, characterized in that the control box is operated by a control box. 4. The upper part 2 of the body has an opening 22 parallel to the central axis VV', in which means 20 for coupling the cylindrical member 18 to the second switch 19 are movably arranged. A hanging type control box according to claim 3, characterized in that: 5. The suspended control box according to claim 1 or 3, wherein the annular member 7 has engagement means 8, 8' between it and the lower end 9 of the support cable 29. 6. A safety switch 31 is provided at the lower end 47 of the frame 10, and is operated by a third operating means 32 provided at the lower end 5 of the handle portion. Hanging type control box as described. 7. The first switches 13, 14 are respectively arranged on both sides of the plane P, and the blocking means consisting of a disc 24 is arranged in a plane Q parallel to the plane P, so that the movement transmitting surfaces 2 of the pushbuttons 15, 16
4. A hanging type control box according to claim 1 or 3, wherein the control box is movable between 7 and 28.