JPH0497397A - Slide device for lid - Google Patents

Abstract

PURPOSE:To slide the lid in parallel without vibration and to make the slide device compact by pivoting both end parts of two links, whose intermediate parts are supported pivotally crossing each other, on the lid and a fixed part respectively and providing a 1st and a 2nd guide means which guide the pivotal point and both ends of the lid in a slide direction respectively. CONSTITUTION:The two links 2 and 3 whose end parts are both mounted on the lid 1 and fixed part respectively are supported pivotally crossing each other and the 1st and 2nd guide means guide the pivotal point 6 in the slide direction and also guide both end parts of the lid 1 in the same direction. Namely, the pivotal point 6 between the links 2 and 3 and both ends of the lid 1 are guided in the slide direction at the same speed. Consequently, the lid can be moved in parallel by any operating method. Further, a link mechanism is used to eliminate the need for a rack and pinion mechanism which is required for a conventional device of the same kind, and consequently while vibration and noises at the time of sliding the lid 1 are prevented, the slide device can be made compact.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lid sliding device for sliding a large, substantially flat lid in parallel without vibration.

[Summary of the invention]

In this invention, both ends of two links, which are pivotally connected with their middle parts intersecting, are attached to a lid and a fixing part, respectively.

The first one guides its pivot point and both ends of the lid in the sliding direction. By providing the second guide means, the lid can be slid in parallel without vibration, and the sliding device can be made compact.

[Conventional technology]

Some keyboard electronic musical instruments are equipped with a lid that can be slid in parallel to cover the upper part of the keyboard section.

As this type of lid sliding device, for example, the one shown in FIG. 4 is known.

To explain this simply, a shaft 22 is rotatably mounted on the back surface of the lid 21 parallel to the longitudinal direction.

At both ends of the shaft 22, pinions 23a and 23b of the same diameter are integrated and in the same phase.

On the other hand, a pair of racks 24a are provided on the side of the instrument body.

24b are provided in parallel with each other in the same phase, and the above-mentioned pinion 23a is attached to these racks 24a and 24b.

23b are engaged with each other.

Now, if you press the right end side in the direction of arrow A in the diagram of the lid 21,
Since the pinion 23a meshing with the rack 24a is rotated clockwise, the pinion 23a is rotated clockwise through the shaft 22.
b also rotates in synchronization in the same direction, and the left end side of the lid 21 also rotates in the direction indicated by arrow B.
Go in parallel in the direction. This causes the lid 21 to slide in parallel.

[Problem to be solved by the invention]

However, in such conventional lid sliding devices, the pinion provided on the lid side meshes with the rack provided on the instrument body, so vibrations generated on the pinion side due to the meshing of the two. is transmitted to the lid side through the shaft, and generates noise, which may cause discomfort to the user and impair the sense of luxury.

Another problem is that it is difficult to make the lid sliding device thinner because it uses a rack and pinion mechanism.

The present invention has been made in view of the above points, and an object of the present invention is to provide a compact lid sliding device that has a simple structure and can slide smoothly and quietly.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a lid sliding device in which both ends of two links, which are pivotally connected with their middle parts intersecting, are attached to a lid and a fixing part, wherein the two links The first guide means guides the pivot point of the lid in the sliding direction of the lid, and the second guide means guides both ends of the lid in the same direction.

[For production]

By configuring the lid sliding device according to the present invention as described above, the pivot point of the link and both ends of the lid are each guided in the sliding direction at the same speed, so that the lid always slides in parallel.

By using a link mechanism, the rack and pinion mechanism required in conventional similar devices is no longer required.
Vibration and noise when the lid slides are prevented, and the slide device can be made compact.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to FIGS. 1 to 3 of the accompanying drawings.

FIG. 1 shows an embodiment in which the present invention is applied to a lid covering a keyboard section of an electronic keyboard musical instrument, and the figure is a perspective view of the device as seen from the back side.

One end of the two links 2 and 3 is attached to the shaft 4 on the surface of the lid 1.
, 5, and has long holes 2a and 3a in the middle of the link 2.3, and a long hole 2b at the other end.

3b respectively. A guide pin 6 is slidably attached to the elongated holes 2a and 3a, and the guide pin 6 constitutes a common pivot point for the links 2 and 3.
b are slidably mounted on shafts 8 and 9 provided on the back side of the roof 7 of the musical instrument body.

Further, a long groove 10 is formed on the back surface of the roof 7 in the sliding direction of the lid 1, and the guide pin 6 is slidably mounted in the long groove 1o to constitute a first guide means.

The shafts 8 and 9 are provided at symmetrical positions with respect to the long groove 10, and the shafts 4 and 5 are provided at symmetrical positions with respect to the extension line of the long groove 10.

Furthermore, the roof 7 is provided with a groove 7a in the sliding direction of the lid 1.

7b, and grooves 7a and 7b are formed on both sides 1a of the lid 1.

1b are slidably inserted into each other to constitute the second guide means (see FIG. 2).

Here, the operation of the embodiment configured as described above will be explained.

Now, when one end 1a of the lid is pressed in the direction of arrow A from the closed state shown in FIG. 1, the shaft 4 presses the right end of the link 2 in the same direction, and the guide pin 6 moves in the long groove 10 in the direction of arrow C.

As the guide pin 6 moves, the side surface of the elongated hole 3a is pressed, so the shaft 5 is moved in the direction of arrow B via the link 3. At this time, since the shafts 4 and 5 are in symmetrical positions with respect to the long groove 10, they are also symmetrical with respect to the guide pin 6, and the amount of movement of the shafts 4 and 5 is equal, and the lid 1 is moved from both ends 1a and lb to the groove 7a.
, 7b, and move in parallel to reach the open state.

Conversely, when the lid 1 is closed from the open state, it similarly moves in parallel without tilting.

In addition, because the parallel movement does not use a rack and pinion mechanism that is found in conventional similar devices, there is no risk of vibration or noise, and a smooth and luxurious operation feeling can be obtained. .

Next, FIG. 3 is a perspective view similar to FIG. 1 showing another embodiment of the present invention.

In this embodiment, the middle portions of the two links 12 and 13 are pivotally connected to be openable and closable by a guide pin 16.
6 is slidably inserted into the long groove 10 in the sliding direction of the lid 1 formed on the back surface of the roof 7, and shafts 14.18 and 15.19 are respectively implanted at both ends of the link 12.13. .15.

A long groove 1 formed on the surface side of the lid 1 perpendicular to the sliding direction
The shafts 18 and 19 are slidably fitted into long grooves 7c and 7d formed in the same direction on the back surface of the roof 7, respectively.

The rest of the structure is the same as the embodiment shown in FIG.

According to this embodiment, the guide pin 16 and the link 12.1
Since the play with the guide pin 16 can be minimized, the friction caused by the fall of the guide pin 16 is reduced, and the lid 1 can slide more smoothly.

In this embodiment, the shaft 14. is similar to the previous embodiment.
15 on the lid 1 side and shafts 18, 19 on the roof 7 side, respectively, and long holes in which these shafts can slide may be provided at both ends of the lever 12, 13.

Further, in the above embodiment, the case where the present invention is applied to a sliding device for the lid of an electronic keyboard musical instrument has been described, but the present invention is not limited thereto. It can also be applied without any problem.

〔Effect of the invention〕

As described above, according to the present invention, two links whose ends are attached to the lid and the fixing part are pivoted by intersecting at the middle part, and the pivot point is guided in the sliding direction, and the lid is attached to the lid. Since both ends are guided in the same direction, the lid can be easily moved in parallel using any operating method.

In addition, since it does not use a parallel movement mechanism using a conventional rack and pinion, there is no vibration or noise caused by movement, which significantly improves the feeling of operation. It can also be easily stored.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention seen from the back side. FIG. 2 is an enlarged cross-sectional view of a portion thereof. FIG. 3 is a perspective view of another embodiment of the present invention viewed from the back side, and FIG. 4 is a perspective view illustrating a conventional lid sliding device. 1... Lid 2, 3, 12, 13... Link 4.5, 8, 9, 14, 15, 18. 19... Axis 6
．． 16... Guide pin (pivot point) 7... Roof 7a, 7b... Groove 10...
Nagamizo,! hf ＼ )

Claims (1)

[Claims] 1. A lid sliding device in which both ends of two links that are pivotally connected with their middle parts intersecting are attached to a lid and a fixed part, respectively, and the pivot point of the two links is set in the sliding direction of the lid. A lid sliding device comprising: a first guide means for guiding both ends of the lid in the same direction; and a second guide means for guiding both ends of the lid in the same direction.