JPS6031496A - Output control mechanism, direction thereof can be controlled - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control mechanism related to direction control and output control when a drive device is remotely controlled by an operation panel, such as in a cargo speculator.

In a conventional load-throwing machine such as a lane-driving machine, the driver's cab 1 is installed near the upper frame 2 of the crane 10 to facilitate cargo handling, as shown in the perspective view of FIG. The engine room 3 housing the engine is installed near the lower frame 5 in consideration of the relationship with the drive unit 4 and inspection and maintenance. For this purpose, the driver's cab 1 and engine room 311-i
They are far apart, so a direction control command circuit and an output control mechanism are provided between them to control the traveling direction of the crane 10 and its output.

Here, an example of this conventional control mechanism will be explained with reference to FIG. 2 (4) and FIG. The mechanism is such that a forward or reverse rotation circuit is formed in the drive device 4 by operating the direction control lever 11 from the neutral position and activating the direction controller 15. Next, the output of the prime mover 16 is controlled by operating the output control lever 12, and by operating the output control lever 12, this is transmitted to the output control device 16a attached to the prime mover through the connecting ring 17. The output of the prime mover 16 is adjusted according to the amount of operation of the control lever 12, and this output is transmitted to the drive device 4 via the direction controller 15 to drive a crane or the like.

In FIG. 2 CA), the direction control lever 11 is in the neutral position and the direction control device 15 does not form an output circuit to the drive device 4, that is, the crane etc. is in a stopped state.
In Figure (B), the directional control lever 11 and the circuit 14 are connected to operate the directional controller 15, forming the circuit shown by the arrow on the right side of the directional controller, and at the same time, the output control lever 12 is operated to operate the prime mover 16. The output of the drive device 4 increases, and the drive device 4 is in a state where it is driven counterclockwise as shown in the figure. Similarly, when the direction control lever 11 is connected to the circuit 13, the drive device 4 is driven clockwise, contrary to the above.

The output control lever 12 can be operated in only one direction, and the output of the prime mover 16 is controlled from a no-load state to a higher output by operating it in one direction.On the other hand, the direction control lever 11 Since the above-mentioned two levers can be operated in two directions, such as front and back, left and right, or hoisting and lowering, centering on the neutral position, it was not possible to combine the two levers into one lever. . For this reason, for example, if you try to change the direction by operating only the direction control lever 11 while the crane is being driven at a certain speed, a sudden reversal output will be applied to the drive device 4, giving a large shock, and in some cases it may cause damage to the machine. Therefore, it is necessary to provide an interlock device for both levers so that the directional control lever 11 can be operated only when the motor output is under no load. Ta. Therefore, in the conventional mechanism as described above, if the driver's cab 1 is provided in multiple locations and it is desired to control the direction and exit of the crane etc. from any location, the mechanism becomes very complex, and requires a lot of effort and low cost. It was difficult to set it up.

The present invention has been made to solve the above-mentioned problems, and it is possible to perform both directional control and exit control by operating only one lever, and also to control the direction of exit from the driver's cab installed in multiple locations. The object of the present invention is to provide an exit control mechanism that can be easily controlled from the operator's cab, and that allows direction control so that operations from one location do not have any effect on other locations. Its structure includes a lever that can be rotated in two directions, for example, the front and back directions, centered on a neutral position, and a first lever that engages with the lever and can swing in only one direction in conjunction with the rotation of the lever. / and a transmission member that engages with and follows the J-th link, and a description? ;・An output control mechanism consisting of a second lever that is partially connected to the former and operates the output control device, and a direction control device that engages with the lever and rotates the lever in each direction. A directional controllable output control mechanism comprising a directional control mechanism equipped with a device operated by fluid pressure such as a pneumatic device or hydraulic pneumatic pressure, which can perform switching, and further comprising a plurality of sets of the lever and the first link. This is connected to each second link by a transmission member to enable control of multiple locations in the driver's cab. Individual Reno (
The above-mentioned object is achieved by being characterized in that the operation of - does not interfere with the levers in other driver's cabs, and the embodiment will be explained below with reference to the drawings.

In FIGS. 3(G) and 3(B), reference numeral 21 is an operating lever that can be rotated by a pin 21a, and electrical contacts 22a and 22b are provided on the extension of the operating lever 21.
When the operating lever 21 is in the upright neutral position shown in the figure, no circuit is formed, but when the operating lever 21 is rotated, the power source 23 is connected to the operating lever 22a-2411 or 22b. ~ 24b is configured. The operating lever 21 is also provided with an arm 25. 26 is a first link, and a fixed support 26I connects the pin 26c to the operating lever 21. It is supported like a balance, and one end of the first link 26 is tied to the arm 25 by a wire wire 27, and at the same time a spring is applied to keep the wire 27 under tension (28).
is crossed.

Here, when the operating lever 21 is in the neutral position, the first link 26 and the springs (5) 28 are in a fully retracted state, and the operating lever 21 is moved to the contact point 223 or 22b,
The arm 25 and the wire (5) are rotated so that the wire (A) 27 is pulled and the spring (A) 28 is extended no matter which direction the arm 25 is rotated.
27, spring (A) 28, and first link 26 are constructed. The other end of the first link 26 is formed into a bifurcated shape 26a, into which the wire (B) 29 is inserted, and one end of which is stopped at the bifurcated shape 2680 by the operating pin 30, and the other end of the wire (B) 29 is It is connected to the second link 31. Second
One end of the link 31 is fixed via a bin 31a, and the other end is connected to an output control device 33a of a prime mover 33. The wire [F]) 29 is connected to the middle position of this second link 31. A spring 32 is connected to the second link and constantly works to suppress the output of the output control device 338 while maintaining balance with the wire (B) 29.

Reference numeral 34 denotes a direction controller, which receives the output of hydraulic pressure, pneumatic pressure, etc. generated in the prime mover 33, and includes a switching valve 34a for controlling the direction of the drive device 35, such as forward rotation, reverse rotation, and stopping.
34b, 34o and the electromagnetic coil 3 that operates them
4d, 34o, and electromagnetic coils 34d, 34e.
is circuit 24. ．． 24b, respectively.

Next, we will explain the operation of the above embodiment, and Fig. 3 (4) shows the state of each mechanism in the case where the drive device 35 is stopped without being driven in either direction. The operating lever 21 is in the upright neutral position, so the directional control circuits 22a and 221° are both open, and the switching valve of the directional controller 34 is closed at 34c. No output is sent to . Regarding output control, the relative position of the arm 25 attached to the operating lever 21 is such that the wire (5) 27 pulled by the shibane 28 has the most degenerate ridge shape and is therefore connected to this. First link 26, wire (B) 29, spring [
) 32, the second link 31 is simultaneously in the most degenerate state, and in this case, the output control device 33a coupled to the second link 31 is configured to control each mechanism so that the prime mover 33 is in the no-load operating state. is p-adjusted. Next, when operating this, for example, when completing normal rotation operation at No. 3f'4 (13), set the J.y made l/bar 21 to 22a.
If the contact is rotated in the direction of 24a, the circuit 24a is formed, and the directional control valve 4 rotates in the forward direction of 34a:
71 (
7, a circuit for forward rotation is created 1, and by rotating the operation 1/bar 21, ';X! 125 and the wire (T) will be pulled to the left in FIG. is,
The spring (B) 32 expands and the second link 31
The output control device 33a of the prime mover 33 operates via the motor, the output of the prime mover 33 increases, and a corresponding output is sent to the drive device 35. At this time, if the amount of rotation of the operating lever 21 is increased, the second link 31 will also move greatly in proportion to the amount of rotation, allowing a large amount of displacement to be given to the output control device R33a, and the prime mover 33 will drive a large output. The data is now sent to the device 35. Next, when suppressing the output of the prime mover 33, the operating lever 21 is returned to the upright neutral position. The wire (B) will be pulled to the right and then the wire (B) will be pulled through the first link 26.
29 is relaxed and the spring (B) 32 retracts, causing the wire (B) 2'l to be pulled to the left. At the same time, the second link 31 causes the output control device 7 to be .33a indicates that when the output of the prime mover 33 is used to reverse the device 35, the operating lever 21 is rotated in the direction to form the contact point 22b.
4b is formed, and the switching valve of the direction controller 34 is 34.
The circuit is switched to the valve that creates the reverse rotation of the drive unit 35, and a circuit for reverse operation is created for the drive device 35. Then operation lever 2
1 is further rotated, the output of the prime mover 33 is controlled by the operation of the output control device, which is exactly the same as in the case of normal rotation operation. Here, in this device, the operating handle 21
When the operation handle 21 suddenly changes from normal rotation to reverse rotation and then performs the operation of switching from reverse rotation to normal rotation trap, the operating handle 21 must pass through the upright neutral position in the process of this operation, and therefore, once in this position, The output of the prime mover 33 becomes a no-load state, and the contacts 221 and 22b are opened, and accordingly, the direction controller 34 is also temporarily switched to the valve at the stop position 34c, and the output to the drive unit [35 is stopped. After that, the next operation starts. The sweeping handle 21 is rotated to the - state.

Figures 4 to 7 show the operational details of the present invention-21.
This is an embodiment in which a plurality of first links can be assembled and controlled from a fixed location in multiple bushes.The drawings will be explained below.In FIGS.
Wires (B) 29', 29'' in parallel with 29
A plurality of - are provided and their respective wires (B) 29, 29
', 29"... respectively the first link 26゜26'
, 26″..., wire (A) 27, 27.27...
, by connecting the operating levers 21, 21, 21''... (not shown), and in FIGS. 5 and 7, the wires (B) 29, 29,...
・Connect wires vertically as shown in FIG. ,
26″...Wire (A) 27.27', 27...,
By connecting the operating levers 21, 21', 21''... (not shown), the driving operation can be performed in exactly the same way as the above-mentioned driving operation from any one of the turning rooms provided at multiple locations. What to do 95 If you can do this, the movement of the operating lever (-) operated at one location will not affect the operating lever at another location, and the movement of the operating lever at one location will not affect the operating lever at another location. 〉'The dollar will not be moved.

In FIGS. 6 and 7, the first link 26'
In this case, the other first links 26 and 26 are in a floating state with no relation to the driving operation.

The above object can also be achieved in the following embodiment. That is, Figure 8 prisoner, [F]) and Figure 9 c ~, ■
) in the drawings shown in Figure 8 (G).

CB) is operated as shown in the embodiments of Fig. 3 (5) and (B).Instead of the arm 25 attached to (=21), an internal cam is used to perform the action in place of the arm 25. In other words, in Fig. 8 (A), ■), the operating lever 2
An internal cam 40 is placed on the extension of the cam 1, and a wire prisoner 27 is attached via a lever 45 to a roller 44 that is inscribed in the IC and follows. When the operating lever 21 is in the upright neutral position, the roller 44 is inscribed.The lowest position of the cam 40 is 41. Next, by rotating the operating lever 21 to the left or right, the roller 44 is inscribed. [42, 43 are slid, and in this case, it acts to pull the wire (A) 27 via the lever 45, and controls the output control device 33a connected thereto. The inscribed cam 40 is made so that the inscribed lines 42 and 43 are symmetrical with respect to the lowest position 41, and even if the operating lever 21 is rotated by the same amount to the left or right, the amount of tension on the wires (4) 27 will be the same. are the same amount. Reference numeral 46 denotes a spring, which is provided so that the roller 44 reliably contacts the internal cam 40.

The embodiment shown in FIGS. 9(5) and 9(B) is different from the action of the first link 26, and 50 in the drawings is similar to the first link 26 in FIGS. 3(4) and 3(B). The support 50b is fixed with a replacement link and the pin 50o
One end of the link 50 is connected to an engaging member 51 having an elongated hole 51a.
This engagement member 51 is slidably blocked within 1a.
is tensioned by a spring 28 and a wire (T) 27, the other end of this link 50 is fixed to a wire (B) 29, and a long hole 51a provided in the engagement member 51 is The length is set to have a sufficient amount of movement necessary to control the output control device 33a. Here, in FIG. 9(G), when the wire (5) 27 is pulled to the right by the rotation of the operating lever 21, the link 50 is pulled through the engagement member 51 by the wire (5).
B) By moving 29 to the right, the output control device 33a can be controlled. Next, Figure 9 03)
, the other operating lever is rotated and the wire (B) 29
When the link 5o is moved to the right in the figure, the link 5o moves to the engaging portion 51.
In this case, the wire (A) 2 slides inside the elongated hole 51a.
7 has no effect on the wire (B) 29 even if the operating handle connected to the octopus link 50 is rotated.
The configuration is such that there is no interference with the

In each of the above embodiments, a wire is used as a transmission member, but a connecting wire or a chain may be used instead. Also, Figure 8 (4),
In the embodiment of ω), an internal cam is used, but instead of this cam, a cam of other shape or a combination of a cam and a link can be used to achieve the purpose. Also, this mechanism is the only
Good when operated by a separate operating handle.

Output controller 4iIF according to the present invention! , is configured as described above, and therefore, what was conventionally performed with two operating levers for direction control and output control can now be controlled with one operating lever, and the direction control and output control of the drive device can be controlled with one operating lever. Even when converting, the stop position is first changed to red or white before the change is made, so there is no need for an expensive interlock device, and the direction can be changed safely without applying a sudden reversal output to the driving device. In addition, the control levers can be installed in multiple locations very easily, and the operation of this one location does not interfere with other operations, and the operation is light.The drive unit and the driver's cab are installed separately. Since the mechanism can be controlled even in such cases, it has the advantage of being convenient for adjustment and inspection.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the loading machine, Figs. 2 (4) and (B) are illustrations of the conventional control mechanism, and Figs. 3 (A) and (B) are explanatory views of the mechanism of the embodiment of the present invention. , 4 and 5 are explanatory diagrams of a mechanism of an embodiment of the present invention, FIGS. 6 and 7 are explanatory diagrams of a mechanism of a second embodiment of the present invention, and FIG. 8 (G). (B) is a mechanism explanatory diagram of the third embodiment of the present invention. FIG. 9 (B) is an explanatory diagram of the mechanism of the fourth embodiment of the present invention. 21...operation lever 22a, 221. -・Contact 2
3...Power source 24B + 2'b--Direction controller control circuit 25...Arm 26...-First link 2
6a...Bifurcated part 27.29...Wire 30.
-・Operating bin 31-・Second slot 33...
Prime mover 334, --output control device 34, direction controller 35, --BA motion system nine 40, --internal cam
41, 42, 43...Inscribed line of cam 44...Pin 45...Lever 50...Link 51...Engagement wing 51a...Elongated hole Applicant Kawasaki Heavy Industries Co., Ltd. Attorney Patent Attorney Yuji Ko Figure 1 Figure 35A (A) Figure 3 (B) 1 Figure 6 7 Figure 7 3'3a Procedural Sleeve Form (self-motivated) 1. Display of the incident 1982 Patent Application No. 140684'°Invention'''
Name . , Go, □8° Kayu 4. Xu. 3. Relationship with the case of the person making the amendment Patent applicant name) (097) Kawasaki Heavy Industries, Ltd. 4, representative
Rito,? 103 6. Number of inventions increased by amendment (1) "Nazugashitta 0" on page 6, line 6 of the Mei Ifa Oath was all 1° difficult. ” he corrected. (2) On page 7, line 4, ``For example, pneumatic equipment or reduced air pressure, etc.'' should be corrected to ``For example, electrical equipment, hydraulic pressure, or air pressure, etc.'' (3) On page 9, line 5, ``the position between so and so'' is corrected to ``the position between n and n.'' (4) Correct “circuit” in line 2o on page 9 to “contact”. (5) "0
” to be deleted. (6) On page 16, line 6, the missing "rightward" is corrected to "leftward." (7) Perform intermittent correction as shown in Figure 8, as shown in the attached sheet. Above Section 8 Figure (: Do4 27

Claims (5)

[Claims] (1) Reno (
-, the lever, a first link that engages with the lever and can follow the rotation of - and swing only in one direction, and a transmission that engages with and follows the first link. an output control mechanism constituted by a member and a second link connected to the transmission member and actuating the output control device; An output control mechanism capable of directional control such as a directional control mechanism equipped with a device capable of switching between directional control devices. (2) A plurality of levers that can rotate in two directions about a neutral position, and a plurality of first links that engage with the lever, follow the rotation of the lever, and can swing in only one direction. An output control mechanism capable of controlling direction according to claim 1, wherein the first link and the second link are connected by a transmission member. (3)'The first link is bifurcated at the retaining portion of the first link and the transmission member, and the transmission member is inserted into the forked portion, and the pin provided on the transmission member is inserted into one side of the bifurcated portion. An output control mechanism capable of directional control according to claims 1 and 2, which is configured to meet the following. (4) At the lever and first link retaining part,
The locking is performed via an internal cam provided at one end of the lever, and the internal cam shape is configured such that the first link swings in only one direction regardless of which direction the lever rotates. A directional controllable output control mechanism according to claims 1 and 2, comprising a cam. (5) The scope of claims that is structured such that the lever and the first link are engaged through a retaining member having a length that allows the amount of movement of the first link. 2. An output control mechanism capable of controlling direction as described in the first and second paragraphs.