JPH0648608Y2 - Pickup device for disc player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" The present invention relates to a magazine type disc player having a sub-chassis for raising and lowering a pickup section.

"Prior Art" As a means for raising and lowering a sub-chassis of this type, there is a means using a swing mechanism or the like.

"Problems to be solved by the invention" However, in the case of such conventional means, there is a drawback that the structure is complicated and it is difficult to assemble and disassemble the conventional means.

[Means for Solving Problems] Therefore, according to the present invention, a pair of left and right guides connected by guide connecting shafts are slidably supported on both sides of the main chassis and supported on both sides of the pickup chassis inside the main chassis. A pickup for a disc player in which a guide pin provided through a vertical guide hole on a side wall of a main chassis is inserted into an inclined cam groove of the left and right guides and a pickup chassis is moved up and down by sliding the left and right guides back and forth. In the device, a regulating groove and a locking member that restrict the movement of the left and right guides to the engagement and disengagement positions of the left and right guides with respect to the main chassis are provided on one side wall side of the main chassis, and the locking member is removable. It is formed by a free screw member.

[Operation] According to the present invention, for example, when one of the elevating guides is slid in the front-back direction, the other elevating guide also slides in the front-rear direction via the shaft in conjunction with this. The sub-chassis is moved up and down while being kept horizontal, and these sub-chassis can be easily assembled, and after the sub-chassis is securely held by a single screw member, it is extremely practical.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a side view of a sub-chassis part according to the present invention, and FIG. 2 is a plan view of the same. In the figure, (1) is a sub-chassis equipped with a pickup part, and (2) is the sub-chassis inside. Main chassis to be installed, (3) and (4) are left and right sub-chassis elevating guides that are arranged on both left and right sides of the main chassis (2) to guide the sub-chassis (1) up and down, and (5) is left and right The guides (3) and (4) have a single guide connecting shaft that engages and connects both left and right ends with engaging holes (6) and (6) that are formed at the upper ends of the centers. A fulcrum member that horizontally rotatably supports the center of the main chassis (2) in the front-rear direction and in the middle of the left-right direction. When one of the left and right guides (3) or (4) moves forward, the other guide (4) ) Or (3) in the opposite backward direction It is configured to movement.

As shown in FIGS. 3 to 4, stepped cam grooves (8) and (9) having the same shape are formed on the inner surface of the right guide (4) at two positions in front and back, and the left guide (3) is formed. ) Has a cam groove (1) having an anti-symmetrical shape with the cam grooves (8) and (9).
0) is formed at one place, and guide pins (12) projectingly provided on both left and right side surfaces of the sub chassis (1) through front and rear regulating guide holes (11) formed on both left and right side surfaces of the main chassis (2). To engage the cam grooves (8), (9) and (10),
The left and right guides (3) and (4) are provided so as to support the subchassis (1) via pins (12).

Further, the right guide (4) is provided with upper and lower end portions on the right side surface of the main chassis (2), two front and rear engaging pieces (13) (13), respectively. (14) The upper engagement pieces (13) (13) are slidably guided to the outside of the right side surface of the main chassis (2) by (14), and the upper engaging pieces (13) (13) are formed in the right guide (4). (15) is inserted to regulate the vertical movement of the right guide (4), and the engagement release portions (15a) (15a) formed at one end of the guide grooves (15) (15) are provided with the engagement pieces (13). (13) and the lower end cutout (8) of the cam grooves (8) and (9).
When the a) (9a) is moved to the pin (12), the right guide (4) can be detached from the main chassis (2).

Further, the left guide (3) is slidably guided to the outside of the left side surface of the main chassis (2) by the upper and lower engaging portions (16) (17) provided on the left side surface of the main chassis (2). The upper engaging piece (16) is inserted through a guide groove (18) opened in the left guide (3) to regulate vertical movement of the left guide (3), and is formed at one end of the guide groove (18). When the release part (18a) is positioned on the engagement piece (16) and the lower end switching part (10a) of the cam groove (10) is moved to the pin (12), the main chassis (2) The left guide (3) is provided so that it can be removed.

Furthermore, the left and right guides (3) are attached to the left guide (3).
A restriction groove (19) for restricting the front-rear movement range of (4) is opened, and a single screw member (20) guides and supports the restriction groove (19) on the left side surface of the main chassis (2). After assembly with (20), each engaging piece (13) (14) (16)
(17) and release parts (15a) (18a) and notches (8a) (9a)
(10a) is regulated to be the same, and the decomposition is prevented. In other words, this disassembly cannot be performed unless the screw member (20) is removed, and the whole screw assembly (20) can be assembled and held only by one screw member (20).

Reference numeral (21) is a gear portion for raising and lowering the sub chassis (1) formed on the left guide (3).

This embodiment is constructed as described above, and the left and right lifting guides (3) (4). Subchassis (1). After assembling the shaft (5), the main chassis (2) and the left lifting guide (3) are fixedly supported by the screw member (20) so that the main chassis (2) and the left lift guide (3) can be slid back and forth. It is impossible unless the 20) is removed, and therefore the assembly and disassembly work of these can be made extremely easy.

When the sub-chassis (1) is moved up and down, one of the left and right lifting guides (3) or (4) is slid in the front-rear direction, and the other lifting guide (4) or the other lifting guide (4) via the shaft (5). (3) slides in conjunction with this to allow the chassis (1) to move accurately and smoothly in the vertical direction while maintaining the horizontal state of the sub-chassis (1), and therefore a very simple structure The sub-chassis (1) can be raised and lowered appropriately and accurately.

[Advantages of the Invention] As is apparent from the embodiments described above, the present invention engages and supports a pair of left and right guides connected by guide connecting shafts on both sides of the main chassis so as to be slidable back and forth, and a pickup chassis inside the main chassis. A disc player in which guide pins provided on both sides are passed through vertical guide holes in the side wall of the main chassis to be engaged with inclined cam grooves of the left and right guides, and the pickup chassis is moved up and down by sliding the left and right guides back and forth. In the pickup device described above, a restriction groove and a locking member for restricting the movement of the left and right guides to the engagement and disengagement positions of the left and right guides are provided on one side wall of the main chassis, and the locking member is provided. Since it is formed with a detachable screw member, it has a very simple structure, In addition to being able to perform an appropriate lifting operation, it is possible to assemble and hold each of these parts (1), (2), (3), (4) and (5) by fastening at one place with a single screw member (20).
This has remarkable effects such as a great improvement in efficiency in work such as assembling and disassembling.

[Brief description of drawings]

FIG. 1 is a side view of a sub-chassis part, FIG. 2 is a plan view of the same, and FIGS. 3 to 4 are explanatory views of a sub-chassis lifting guide part. (1) …… Sub chassis (2) …… Main chassis (3) (4) …… Lifting guide (5) …… Connecting shaft (20) …… Screw member

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right guides connected by a guide connecting shaft are slidably supported on both sides of the main chassis, and guide pins provided on both sides of the pickup chassis inside the main chassis are attached to the side wall of the main chassis. In a pickup device of a disc player, which penetrates a vertical guide hole and is inserted into an inclined cam groove of the left and right guides, and lifts and lowers a pickup chassis by sliding the left and right guides forward and backward, an engagement of the left and right guides with respect to a main chassis. A restriction groove and a locking member that restrict the movement of the left and right guides to the detached position are provided on one side wall side of the main chassis, and the locking member is formed by a detachable screw member. A pickup device for a disc player.