JPH035032Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is useful for opening and closing a sliding door attached to, for example, the cassette magazine insertion opening of the magazine case of an automatic cassette changer or the disk magazine insertion opening of a compact disk changer. It is related to the device.

Prior Art In this type of conventional sliding door opening/closing device, special guide members are provided at the upper and lower ends of the sliding door in order to guide the sliding door in its opening/closing direction. An elongated hole is formed along this elongated hole, a rack is formed in the elongated hole, and a gear connected to a drive motor is meshed with the rack.

Problems to be Solved by the Invention However, with this conventional configuration, the number of structural members for opening and closing the sliding door tends to increase, leading to increased assembly man-hours and increased costs. It was hot. Furthermore, since the sliding door itself is provided with a rack, there is a problem in that the vibration noise generated by the meshing of the rack and the gear becomes noise, causing discomfort to the user.

Means for solving the problems This invention aims to solve the conventional problems,
Either the bottom plate or the edge forming the opening of the top plate, which constitutes the housing to which the case is attached, is bent to form a guide part that extends in the opening/closing direction of the sliding door, and a guide part that engages with the guide part. A sliding member provided with a mating engagement groove and a rack plate extending along the guide portion is attached to the sliding door, and a gear that meshes with the rack plate is connected to a drive motor provided inside the housing. It is something to do.

Function The movement of the sliding door to open and close is performed along the guide part, but since this guide part is formed from a part of the housing, a special member for guiding the movement of the sliding door is omitted. Moreover, since the rack plate is provided near the guide portion, most of the vibrations are absorbed by the housing.

Embodiment A case in which this invention is applied to an auto cassette changer will be described below with reference to FIGS. 1 and 2.

In the figure, 1 is a housing of an auto cassette changer, and a magazine case 2 is provided in this housing 1, and a cassette magazine (not shown) as an insert is stored in this magazine case 2. It's becoming like that. The cassette magazine is movable in a direction penetrating the plane of the paper in FIG.

Reference numeral 3 denotes a sliding door, and a sliding member 5 extending in the moving direction of the cassette magazine is attached to the lower end of the sliding door 3 with screws B. A rack plate 4 is integrally attached along the direction.
An engagement groove 5a is formed in the sliding member 5, and this engagement groove 5a engages with a lower guide portion 6 formed by bending the edge of the bottom plate 1a of the housing 1 upward. It's becoming like that. moreover,
The rack plate 4 is adapted to mesh with a drive gear 7, which is connected to a drive motor 9 via a speed reduction mechanism 8. Here, drive motor 9
is fixed to a bracket 10 mounted on the bottom plate 1a inside the housing 1. Therefore, the sliding door 3 is movable in the left-right direction in FIG.

Further, the sliding member 5 is formed with a protrusion 5b that comes into contact with the surface of the lower guide portion 6, so that the frictional resistance between the lower guide portion 6 and the sliding member 5 can be reduced.

In the figure, reference numeral 11 denotes an upper guide part, and this upper guide part 11 is attached to the top plate 1b of the housing 1, and the slide door 3 is inserted into the sliding groove 11a formed in this upper guide part 11. The upper end portions are adapted to engage. Reference numerals 12 and 13 denote cushions that come into contact with both left and right ends of the sliding door 3, respectively.
Each is attached to a.

With this structure, when the cassette magazine is stored or taken out, the drive motor 9
When a drive signal for opening the sliding door 3 is supplied to the drive motor 9, the drive motor 9 starts rotating and moves the rack plate 4 engaged with the gear 7 and the slide door 3 to which the rack plate 4 is attached to the first position. Move it to the right in the figure. On the other hand, sliding door 3
In order to close the drive motor 9, a drive signal that causes the drive motor 9 to rotate in the opposite direction may be supplied.

In this embodiment, the sliding member 5 and the rack plate 4 are attached to the bottom plate 1a side of the housing 1, but they may be installed on the top plate 1b side with the top and bottom reversed. Furthermore, this invention can be applied not only to automatic cassette changers but also to sliding door devices for opening and closing the openings of cases that house various inserts.

Effects As described above, according to this invention, a part of the casing can be used as a guide part to guide the movement of the sliding door, so the number of parts can be reduced and the number of parts can be reduced. Since it is configured to be provided in the vicinity of the guide portion which is a part of the housing, a synergistic effect is produced in that noise caused by the vibration of the sliding door itself, which is seen in conventional devices, can be suppressed.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing an embodiment of this invention, and FIG. 2 is a side view taken along the line - in FIG. 1. 1... Housing, 2... Magazine case, 2a...
Opening, 3...Sliding door, 4...Rack board,
5a...Engagement groove, 6...Lower guide portion, 1a...
Bottom plate, 1b...Top plate, 5...Sliding member.

Claims (1)

[Scope of Claim for Utility Model Registration] A sliding door opening/closing device in which a case for storing an insert is provided in the case, and a sliding door is provided in the opening of the case so that the slide door can be freely opened and closed, comprising: a bottom plate constituting the case; Either one of the edges forming the opening of the top plate is bent to form a guide part extending in the opening/closing direction of the sliding door, and an engagement groove that engages with the guide part and an engagement groove in the guide part. attaching a sliding member provided with a rack plate extending along the sliding door;
A sliding door opening/closing device characterized in that a gear meshing with the rack plate is connected to a drive motor provided within the housing.