JP2643559B2 - Lid slide device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid sliding device that slides a large, substantially flat lid in parallel without vibration.

[Summary of the Invention]

According to the present invention, both ends of two links pivotally attached with their middle portions crossed are respectively attached to a lid and a fixed portion, and the pivot point and both ends of the lid are guided in the sliding direction, respectively.
With the provision of the guide means, the lid is slid in parallel without vibration and the slide device is compactly assembled.

[Conventional technology]

Some keyboard electronic musical instruments have a lid that can cover an upper portion of a keyboard portion by sliding in parallel.

Conventionally, as a lid sliding device of this kind, for example,
The one shown in the figure is known.

In brief, a shaft 22 is rotatably mounted on the back surface of the lid 21 in parallel with the longitudinal direction, and pinions 23a and 23b having the same diameter are integrally formed at both ends of the shaft 22 in the same phase. I'm sorry.

On the other hand, a pair of racks 24a, 24b are provided on the instrument body side in parallel with each other in the same phase, and the racks 24a, 24b are engaged with the pinions 23a, 23b, respectively.

Now, when the right end side in the diagram of the lid 21 is pressed in the direction of arrow A,
Since the pinion 23a meshing with the rack 24a is driven to rotate clockwise, the pinion 23b also rotates in synchronization with the same direction via the shaft 22, and the left end side of the lid 21 also moves in the direction of arrow B. Thereby, the lid 21 slides in parallel.

[Problems to be solved by the invention]

However, in such a conventional lid slide device, the pinion provided on the lid side is designed to mesh with the rack provided on the instrument body side. Is transmitted to the lid side through the shaft, and noise is generated to give the user discomfort, which may obstruct the sense of quality.

Another problem is that it is difficult to reduce the thickness of the lid sliding device due to the use of the 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 can slide smoothly and quietly with a simple configuration.

[Means for solving the problem]

In order to achieve the above object, the present invention is a lid slide device in which both ends of two links pivotally mounted with their middle portions crossed are attached to a lid and a fixed portion, respectively.
There are provided first guide means for guiding the pivot point of the link in the sliding direction of the lid, and second guide means for guiding both side ends of the lid in the same direction.

(Operation)

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

The use of the link mechanism eliminates the need for the rack and pinion mechanism that was required for conventional devices of the same type, preventing vibration and noise when the lid slides,
The slide device can be compactly assembled.

〔Example〕

Hereinafter, embodiments of the present invention will be described 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 cover for covering a keyboard portion of a keyboard electronic musical instrument. FIG. 1 is a perspective view of the apparatus as viewed from the back side.

Connect one end of two links 2 and 3 to the surface of lid 1
To be rotatable, and the long holes 2a, 3a in the middle of the links 2, 3.
Are formed at the other end, respectively. A guide pin 6 is slidably mounted in the slots 2a, 3a to form a common pivot point for the links 2, 3 with the guide pins 6.
b and 3b are slidably mounted on shafts 8 and 9 provided on the back surface of the roof 7 of the instrument body.

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 10 to constitute 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 of the long groove 10.

Further, grooves 7a and 7b in the sliding direction of the lid 1 are formed on the roof 7, and both ends 1a and 1b of the lid 1 are slidably fitted into the grooves 7a and 7b, respectively, to constitute a second guide means ( (See FIG. 2).

Here, the operation of the embodiment having the above configuration will be described.

Now, when the one side end 1a side is pressed in the direction of arrow A from the lid 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 is inserted through the elongated hole 2a. 6 is a long groove 10
In the direction of arrow C.

Since the side surface of the elongated hole 3a is pressed by the movement of the guide pin 6, the shaft 5 is driven through the link 3 in the direction of arrow B. At this time, since the shafts 4 and 5 are located symmetrically with respect to the long groove 10, the shafts 4 and 5 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 formed with the grooves 7a and 7b It moves parallel while being guided by and is in an open state.

Conversely, when the lid 1 is closed from the open state, the lid 1 is similarly translated without tilting.

And since the rack and pinion mechanism used in the same type of conventional device is not used for the parallel movement, there is no possibility of generating vibration or noise, and a smooth and high-quality 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 center portions of the two links 12 and 13 are pivotally opened and closed by a guide pin 16, and the guide pin 16 is slidable in the long groove 10 in the sliding direction of the lid 1 formed on the back surface of the roof 7. And the shafts 14,1 at both ends of the links 12,13.
8, 15 and 19 are respectively implanted, and the shafts 14 and 15 are slidably fitted into the long grooves 1c and 1d formed on the surface side of the lid 1 at right angles to the sliding direction, and the shafts 18 and 19 are roofed. 7 are slidably fitted in long grooves 7c and 7d formed in the same direction on the back surface of the slidable member 7. Other configurations are the same as those of the embodiment shown in FIG.

According to this embodiment, since the play between the guide pin 16 and the links 12 and 13 can be minimized, the friction caused by the fall of the guide pin 16 is reduced, and the slide of the lid 1 can be further smoothly performed. .

In this embodiment, the shafts 14 and 1 are similar to the previous embodiment.
5 may be planted on the lid 1 side, and the shafts 18 and 19 may be planted on the roof 7 side, respectively, and both ends of the levers 12 and 13 may be provided with long holes through which these shafts can slide.

Further, in the above embodiment, the case where the present invention is applied to a sliding device for a lid of a keyboard electronic musical instrument has been described. However, the present invention is not limited to this, and other large flat plate-like sliding devices such as a wide drawer. Can be applied without any trouble.

〔The invention's effect〕

As described above, according to the present invention, two links attached to both ends of the lid and the fixed portion are crossed at the middle portion and pivotally connected, and the pivot point is guided in the sliding direction, and the lid is fixed to the lid. Since both side ends are guided in the same direction, the lid can be easily moved in parallel by any operation method.

In addition, since the conventional parallel movement mechanism using rack and pinion is not used, vibration and noise are not generated by the movement, the operation feeling is remarkably improved, and the device can be made thinner, and the space can be reduced. Can be easily stored.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of the present invention viewed from the back side, FIG. 2 is a cross-sectional view showing a part of the embodiment in an enlarged manner, and FIG. 3 is another embodiment of the present invention viewed from the back side. FIG. 4 is a perspective view illustrating a conventional lid slide 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: Long groove

Claims (1)

(57) [Claims] 1. A lid sliding device in which both ends of two links pivotally attached with their middle portions crossed are respectively attached to a lid and a fixed portion, wherein the pivotal connection point of the two links is set to First guiding means for guiding the lid in the sliding direction, and second guiding means for guiding both ends of the lid in the same direction.
A sliding device for a lid, comprising: