JPH028239Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an XY drive device that drives a driven object to an arbitrary position on a plane.

For example, some audio playback devices are provided with a plurality of operating parts for moving an operating lever forward and backward. With such equipment, each operating part is automatically driven to a predetermined operating position without manual operation,
Alternatively, in order to perform remote control, a drive mechanism is required to drive the operating components. However, if a drive mechanism is provided separately for each of the plurality of operating parts, the structure will be complicated and the cost will be high. In this case, by arranging each operating part on the same plane and using a drive mechanism that can move it to any position on the plane, multiple operating parts can be automatically driven, and the configuration is simple. The cost will also be lower. For this purpose, a drive mechanism as shown in FIGS. 1 and 2 in front and rear views has been considered. That is, in the figure, 1 and 2 are a pair of guide rails arranged in parallel, and 3 and 4 are vertical members that connect each end of the guide rails 1 and 2. And the above guide rails 1 and 2
A movable plate 5 is provided so as to be guided by and movable in the left and right directions (arrow X) in the figure.

As shown in FIG.
Two interlocking pulleys 11 are provided on the movable plate 5 so as to be movable upward and downward in the figure (arrow Y). The two interlocking pulleys 11 are connected to the driven body 11A.
It pivotally supports two pulleys 11B and 11C. Further, the other vertical member 4 is provided with a fixed pulley 12 and a Y-axis drive pulley 13. Then, one end of the first cable 15 is locked to one vertical member 3 via a spring 14, and the other end is connected to the second cable again via the pulley 7, the second interlocking pulley 11, and the pulleys 8, 12, 13, and 10. It is folded over the interlocking pulley 11 and further secured to one of the vertical members 3 via the pulley 9 and spring 16.

In addition, as shown in FIG.
Pulleys 17, 18, 1 are provided on the left and right sides of the lower end, respectively.
9 and 20 are pivotally supported, and a pulley 2 is placed below a certain vertical member 3.
1. An X-axis drive pulley 22 is provided below the other vertical member 4. One end of the second cable 23 is locked to one vertical member 3 via a spring 24, and the other end is folded to the pulley 21 of one vertical member 3 via pulleys 17 and 19 of the movable plate 5. It is engaged with the other vertical member 4 via the X-axis drive pulley 22 and again via the pulleys 20 and 18 of the movable plate 5.

The Y-axis drive pulley 13 and the X-axis drive pulley 22 are each rotationally driven by a drive motor (not shown) to control the position of the driven body 11A of the two interlocking pulleys 11. Further, this driven body 11A is provided with a protrusion or the like that engages with an operating lever of an operating component (not shown).

Then, when the Y-axis drive pulley 13 rotates clockwise in the figure (arrow C), the amount of movement of the first cable 15 is 1/2
When the Y-axis driving pulley 13 rotates counterclockwise, the driven body 11 moves downward in the drawing, and conversely moves upward in the drawing. That is, Y-axis drive pulley 1
By the rotation of 3, the driven body 11 can be driven in the direction of arrow Y in FIG.

Furthermore, when the X-axis drive pulley 22 is rotated, for example, clockwise in the figure (arrow D), the moving plate 5 moves to the right in the figure by 1/2 of the amount of movement of the second cable 23, and rotates counterclockwise. Then, it moves to the left in the figure.
That is, the movable plate 5 can be driven in the direction of the arrow X in FIG. 2 by the rotation of the X-axis driving pulley 22, and in this case, no stress is applied to the two interlocking pulleys 11, so their position remains unchanged. Therefore, by moving the first and second cables 15 and 23 via the Y-axis drive pulley 13 and the X-axis drive pulley 22, the driven body 11A can be moved to an arbitrary position. .

By the way, in the structure shown in FIGS. 1 and 2, the driven body 11 is connected to the pulleys 7, 8, and
9 and 10 through the cable 15, it cannot be held securely. On the other hand, it is also conceivable to provide a guide rail, for example, carved into the movable plate 5, and to guide the driven body 11 by this guide rail. However, such a device has a complicated structure and is troublesome to assemble, and when a guide rail is provided on the movable plate 5, mechanical strength decreases and deformation due to stress acting from the cables 15 and 23 occurs, resulting in a decrease in accuracy. cause it to happen.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an XY drive device that has a simple structure, is easy to assemble, and can achieve high accuracy. Hereinafter, one embodiment of the present invention will be described in detail with reference to the front view shown in FIG. 3 and the side view shown in FIG. 4. Note that the same parts as in FIGS. 1 and 2 are given the same reference numerals and their explanations will be omitted.
That is, in the case shown in FIGS. 3 and 4, the movable plate 5
As shown in FIGS. 5a, b, and c, a flexible member such as plastic is molded into a substantially rectangular frame body, and upper and lower horizontal frames 5a, 5b are formed.
Pulleys 7, 8, 9, 10 are installed on the vertical frames 5c, 5d.
Pulleys 17, 18, 19, and 20 are provided. Guide rails are formed on the inner edges of the vertical frames 5e and 5d, and the two interlocking pulleys 11 are fitted between them so that they can move up and down. Furthermore, this two interlocking pulley 1
1 has a driven body 11A, two pulleys 11B and 11C, as shown in the front view, top view and side view in FIGS. 6a, b and c, for example, and the vertical frame 5
A claw 11D is formed to be held between the guide rails c and 5d. Then, when the vertical frames 5c and 5d are driven, especially when driven in the horizontal direction as shown in FIG. 3, a large stress is applied to the vertical frames 5c and 5d, causing deformation, which may prevent smooth movement of the two interlocking pulleys 11. Therefore, as shown in FIG. 7, a reinforcing plate 25 with through holes bored in the four corners is provided so that the support shafts of the pulleys 17, 18, 19, and 20 bridge the vertical frames 5c and 5d. There is. In this way, the members such as the movable plate 5 and the two interlocking pulleys 11 can be easily molded, for example, from synthetic resin, and a material with low frictional resistance can be used. That is, by utilizing the flexibility of this type of material, the pawl 11D of the two interlocking pulleys 11 is deformed to elastically hold it between the vertical frames 5c and 5d, and the reinforcing plate 25 is used to bridge between the vertical frames 5c and 5d. By connecting them, deformation can be prevented even when a large stress is applied. Therefore, compared to the case where a material with high rigidity is used, the structure is simpler, the cost is lower, and the assembly is easier. Especially the pulley 17,1
By holding the reinforcing plate 25 by the support shafts 8, 19, and 20, the reinforcing plate 25 can be attached at the same time as the pulleys 17, 18, 19, and 20, and work efficiency is also good.

As detailed above, the present invention can drive a driven body to any position on a plane with a simple configuration, and in particular, it uses materials that are easy to produce and process, such as synthetic resin, to obtain sufficient elasticity, strength, etc. It is easy to assemble, and even though the drive mechanism uses an elastic body, it is reinforced after assembly to form a drive body with excellent precision, so it will not deform under the tension of the drive system.
XY drive can be provided.

[Brief explanation of the drawing]

Figures 1 and 2 are front and rear views showing an example of an XY drive device, Figures 3 and 4 are front and side views showing essential parts of an embodiment of the present invention, and Figure 5 a. , b, c are front views showing the movable plate of the above embodiment,
A plan view and a side view. FIGS. 6a, b, and c are a front view, a plan view, and a side view showing the two interlocking pulleys of the above embodiment, and FIG. 7 is a front view showing a reinforcing plate. 1, 2... Guide rail, 3, 4... Vertical member,
5... Moving body, 11... 2 interlocking pulleys, 17,1
8, 19, 20... Support shaft, 25... Reinforcement plate.

Claims (1)

[Scope of utility model registration request] A drive comprising a generally rectangular frame made of a flexible member and having an opening in the center, and a moving plate that fits into the opening and slides in the vertical axis (y-axis) direction. An XY drive device characterized in that, in the body, a reinforcing plate bridging the vertical frames of the movable plate is attached by a spindle of a pulley provided on the movable plate.