JP3403587B2 - Housing structure of in-vehicle equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted device, such as a vehicle-mounted magazine loading type disc device (disc changer), in which a device body is elastically supported via a tension spring in a housing. Regarding the housing structure.

[0002]

2. Description of the Related Art In an in-vehicle device such as a disc changer mounted in an automobile, the device main body is elastically supported in a housing so that vibration during traveling does not adversely affect the device main body. Therefore, for example, a malfunction such as sound skipping which is likely to occur when the vehicle body vibration acts on the disk drive mechanism is less likely to occur.

FIG. 7 is a view for explaining a conventional technique of a housing structure of such a vehicle-mounted device, and shows an outline of a vehicle-mounted disc changer as an example. In the figure, the device main body indicated by reference numeral 1 is configured by disposing a disk storage magazine 3, a disk drive mechanism 4 and the like in a main body chassis 2. The device body 1 is elastically supported in a housing 7 made of a metal plate via a plurality of tension springs 5 and damper members 6. Here, the housing 7 has a storage space in which the device main body 1 is disposed between a pair of side plates 8a facing each other, and a chassis 8 having upper and rear openings, and the side plates 8a of the chassis 8 are outside. It is a box-shaped exterior body formed by combining a cover member 9 that reinforces the opening and a cover member 9 that covers the opening. One end of the tension spring 5 is locked to a side plate 8a of the chassis 8. A front plate 8b of the chassis 8, which is the front face of the housing 7, is provided with an insertion opening 8c that can be opened and closed by a door (not shown), and the main body chassis 2 of the device main body 1 also has the insertion opening 8c. Insertion port 2a at the location facing
Is provided.

The operation of the above-mentioned vehicle-mounted disc changer will be briefly described. First, the magazine 3 accommodating a plurality of (for example, six) discs D is indicated by an arrow A.
By inserting in the direction, the insertion holes 8c and 2a are passed and the main body chassis 2 is loaded. The magazine 3 thus loaded has its opening 3a directed toward the disc drive mechanism 4 side. Since the disc drive mechanism 4 can be raised and lowered in the B direction within the main body chassis 2 by an elevating mechanism (not shown), When one of the disks D in the magazine 3 is selected, the disk drive mechanism 4 moves to the position where the selected disk D is stored, and the central portion of the disk D pulled out from the magazine 3 Is clamped on a turntable (not shown). Then, while rotating the disk D in this state, a signal recorded on the disk D is read by an optical pickup (not shown) to reproduce recorded music or the like.

The on-vehicle disc changer shown in FIG. 7 can be installed in either the horizontal direction or the vertical direction according to the user's wishes or restrictions on the installation space without changing the mounting position of the tension spring 5. In order to do so, select an appropriate place and use three tension springs 5 on each side (total 6
Book), and the elastic supporting force is strengthened.

[0006]

By the way, since the pulling force of the plurality of pulling springs 5 is always acting on the side plate 8a of the chassis 8 of the vehicle-mounted equipment as described above, the housing 7 is constructed. At this time, it is necessary to consider that the side plate 8a does not bend and deform. Therefore, in the case 7 of this type, usually, a plurality of side plate portions 9a of the cover member 9 are screwed and fixed to the side plate 8a of the chassis 8 by using connecting screws (not shown). Since the work is complicated, it is desirable to perform the minimum necessary screwing in order to suppress the cost increase of the housing 7.

However, as shown in FIG. 7, in the case of a disk changer that can be easily installed in both the horizontal and vertical directions by using three tension springs 5 on each side (six in total), the chassis 8 Since the pulling force applied to the side plate 8a is relatively large, the strength of the side plate 8a is insufficient and the side plate 8a is apt to be deformed unless at least three places on one side (six places in total) are screwed. Therefore, the housing 7 becomes expensive due to an increase in the number of parts and the number of assembling steps associated with the increase in the number of screw fastening points, or the strength of the side plate 8a of the chassis 8 is insufficient due to the lack of screw fastening points, and the housing 7 There was a risk that the reliability of When the device body 1 is large and heavy like a 12-disk disc changer, the elastic support force (pulling force) by the tension spring 5 needs to be further increased, so that the above-mentioned problem occurs more frequently.

[0008]

SUMMARY OF THE INVENTION According to the present invention, a cover member which is combined with a chassis to form a housing is provided with a portion for restricting the side plate of the chassis from being bent inward by the force of a tension spring. As a result, the side plate can be prevented from being deformed by using a dedicated fixing member such as a connecting screw at a minimum, and thus the cost of the housing and the reliability thereof can be improved.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The housing structure for a vehicle-mounted device according to the present invention includes a chassis having a housing space in which the device body is disposed between a pair of side plates facing each other, and a chassis having openings at least above and behind. A plurality of tension springs that are locked to the side plate of the chassis and elastically support the device body in the storage space, and a cover member that is combined with the chassis to reinforce the side plate from the outside while covering the opening. In the housing structure of the vehicle-mounted device including the above, the cover member is provided with a protruding piece that is bent inward and whose side end face is adjacent to the inner wall surface of the side plate. Since such a protruding piece is less likely to buckle even if its side end surface is strongly pressed, it is possible to contact the side plate of the chassis pulled inward by the force of the tension spring to regulate the position of the side plate. Therefore, even in an in-vehicle device that needs to increase the elastic supporting force of the tension spring, the side plate can be prevented from being deformed without increasing the number of dedicated fixing members such as connecting screws.

At this time, if the projecting piece is provided at a corner on the rear end side of the top plate portion of the cover member, the inward bending of a particularly flexible portion of the side plate of the chassis is caused by the projecting piece. Since the position can be regulated, the side plate is less likely to be deformed by being pulled inward, and in addition to this, the edge of the cover member on the rear end side of the side plate is not attached to the outside of the chassis side plate. By providing the stepped portion that comes into contact with the wall surface, the rear end portion of the side plate can be sandwiched between the projecting piece and the stepped portion, so that the side plate is less likely to bend inward or outward. The deformation can be prevented more effectively.

If the edge portion of the chassis side plate on the rear end side is bent into a folded shape, the rigidity of the side plate itself is increased, which is effective in preventing deformation.

[0012]

EXAMPLES Examples will be described with reference to the drawings.
FIG. 1 is a schematic view of an on-vehicle disc changer, and FIG. 2 is FIG.
FIG. 3 is a plan view of a cover member that is a component of the disc changer housing shown in FIG. 3, FIG. 3 is a rear view of the cover member, FIG. 4 is a side view of the cover member, and FIG. 5 is a disk changer housing shown in FIG. 6 is a plan view of the chassis, which is a component of FIG.
7 is a rear view of the chassis, and parts corresponding to those in FIG. 7 used in the description of the prior art are designated by the same reference numerals.

First, an outline of the on-vehicle disc changer according to the present embodiment will be described. A device main body 1 constituted by disposing a disc storage magazine 3 and a disc drive mechanism 4 in a main body chassis 2 has a tension spring. It is elastically supported in a housing 7 made of a metal plate which is a combination of a chassis 8 and a cover member 9 via the damper member 5 and the damper member 6. Here, the chassis 8 is a pair of side plates 8 facing each other.
It has a storage space where the device body 1 is placed between a,
The upper side and the rear side are formed as openings, and the edge portion on the rear end side of the side plate 8a is a folded edge portion 8d bent into a substantially V shape, and the tension springs 5 are provided at three positions of the side plate 8a. One end of is locked. The cover member 9 covers the upper and rear openings of the chassis 8, and the two corners on the rear end side of the top plate portion 9b of the cover member 9 are each bent inward to one side. A projecting piece 9c whose side end face is adjacent to the inner wall surface of the side plate 8a is provided, and the edge portions on the rear end side of the pair of side plate portions 9a of the cover member 9 respectively contact the outer wall surface of the side plate 8a. The stepped portion 9d is in contact with and reinforces it from the outside.

Incidentally, the vehicle-mounted disc changer according to the present embodiment, like the above-mentioned conventional example, can be moved in the horizontal direction according to the user's wishes or the restrictions of the installation space without changing the mounting position of the tension spring 5. In order to allow installation in any of the vertical directions, three suitable tension springs 5 are arranged on each side (six in total) to increase the elastic support force.

The front plate 8b of the chassis 8, which is the front part of the housing 7, has an insertion opening 8 which can be opened and closed by a door (not shown).
c is provided, and the body chassis 2 of the device body 1 is also provided with an insertion opening 2a at a position facing the insertion opening 8c. Then, for example, a magazine 3 capable of accommodating six disks D is loaded in the main body chassis 2 by inserting it in the direction of arrow A and passing through these insertion openings 8c, 2a, and the magazine 3 thus loaded. Has its opening 3a directed toward the disk drive mechanism 4 side, and this disk drive mechanism 4 can be moved up and down in the B direction within the main body chassis 2 by an elevator mechanism (not shown).

As described above, in this embodiment, the top plate portion 9b of the cover member 9 is provided with the projecting piece 9c whose side end face is adjacent to the side plate 8a of the chassis 8, that is, the downward projecting portion 9c is perpendicular to the side plate 8a. Therefore, even if the side plate 8a is pulled inward by the force of the tension spring 5 and the side end surface of the protruding piece 9c is strongly pushed, the protruding piece 9c is buckled (deformed).
There is no worry to do. That is, the protruding piece 9c is formed on the side plate 8a.
Since it can be abutted against the body to regulate its position, the elastic support force of the tension spring 5 is strengthened so that it can be easily installed in both the horizontal direction and the vertical direction as in the present embodiment. Even the disc changer is strongly pulled by the tension spring 5, and the side plate 8a of the chassis 8 is
Is not required to be screwed at a large number of points, and specifically, two points on one side (a total of four points) of the side plate portion 9a of the cover member 9 may be screwed to the side plate 8a using the connecting screws 10. Further, since the side plate 8a is prevented from being bent, the screw insertion hole of the side plate portion 9a of the cover member 9 and the screw hole of the side plate 8a of the chassis 8 are not displaced, and the workability of screwing is deteriorated. Nothing.

Moreover, in this embodiment, since the projecting pieces 9c of the cover member 9 are provided at the two corners on the rear end side of the top plate portion 9b, the side plate 8a of the chassis 8 is particularly easily bent at the rear end side. The upper corner portion is positionally regulated by the projecting piece 9c, so that it is difficult to deform even if it is pulled inward. Further, the protruding piece 9c is provided with an inclined piece on the outer side of the tip end thereof, and even if there is a slight error in the dimension between the side plates 8a, it can be absorbed and closely contacted with the side plate 8a. It is like this. In addition to this, in the present embodiment, the rear end portion of the side plate 8a is positionally regulated from the outside by the stepped bent portion 9d of the side plate portion 9a of the cover member 9, so that the side plate 8a eventually has a flexible portion. Projecting piece 9 of cover member 9
Since it is held in a state of being sandwiched between c and the stepped bent portion 9d, it is difficult to deform inward or outward. Further, in this embodiment, since the folded edge 8d is formed on the rear end side of the side plate 8a of the chassis 8, the side plate 8a itself is
Rigidity is provided to prevent bending deformation.

Therefore, the housing 7 in this embodiment is
The side plate 8 of the chassis 8 can be secured by simply screwing the two places (four places in total) on one side of the side plate portion 9a of the cover member 9 to the side plate 8a of the chassis 8.
It is possible to reliably prevent the deformation of a, and therefore, it is possible to minimize the increase in the number of parts and the number of assembling steps associated with the increase in the number of screw-fastened portions while ensuring sufficient mechanical strength of the housing 7. It can be done and the cost can be reduced significantly.

In the above-described embodiment, the case structure of a disc changer for six disks which can be easily installed in both horizontal and vertical directions has been described. It is needless to say that the cost of the housing and the reliability can be improved by applying the present invention because it is necessary to strengthen the elastic supporting force of the tension spring even in the case of being large and heavy.

[0020]

The present invention is carried out in the form as described above, and has the following effects.

Since the cover member which is combined with the chassis to form the housing is provided with the protruding piece for restricting the side plate of the chassis from being bent inward by the force of the tension spring,
It is possible to prevent the side plate from being deformed by using a dedicated fixing member such as a connecting screw at a minimum, and thus it is possible to reduce the cost of the housing and improve the reliability. Moreover, the screw holes of the chassis and the cover for screwing in the connecting screw do not shift in position, and the screwing operation becomes easy.

At this time, if the projecting piece is provided at the corner of the top plate portion of the cover member on the rear end side, the inward bending of the part of the side plate of the chassis which is particularly flexible is located at the projecting piece. Since it can be regulated, the side plate is less likely to be deformed by being pulled inward, and in addition to this, the outer wall surface of the side plate of the chassis is attached to the edge portion on the rear end side of the side plate part of the cover member. By providing a stepped bent portion that comes into contact with the side plate, the rear end of the side plate can be sandwiched between the projecting piece and the stepped bent part, so that the side plate is less likely to bend inward or outward. Deformation can be effectively prevented.

If the edge of the side plate of the chassis on the rear end side is bent back, the rigidity of the side plate itself is increased, which is effective in preventing deformation.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a vehicle-mounted disc changer according to an embodiment of the present invention.

FIG. 2 is a plan view of a cover member that is a component of the housing of the disc changer shown in FIG.

FIG. 3 is a rear view of the cover member.

FIG. 4 is a side view of the cover member.

5 is a plan view of a chassis which is a constituent element of the housing of the disc changer shown in FIG. 1. FIG.

FIG. 6 is a rear view of the chassis.

FIG. 7 is a schematic view of a vehicle-mounted disc changer according to a conventional example.

[Explanation of symbols]

1 device body 3 Disc storage magazine 4 disk drive mechanism 5 tension spring 6 damper member 7 housing 8 chassis 8a side plate 8d Folded edge 9 Cover member 9a Side plate part 9b Top plate part 9c protruding piece 9d step bending part 10 Connection screw

Claims (4)

(57) [Claims] 1. A storage space having a device body disposed between a pair of side plates facing each other, a chassis having at least upper and rear openings, and the storage space locked to the side plates of the chassis. A plurality of tension springs that elastically support the device body inside, and a cover structure that covers the opening while reinforcing the side plate from the outside by being combined with the chassis, and A casing structure for an in-vehicle device, comprising: a cover member provided with a projecting piece that is bent inward and a side end surface of which is adjacent to an inner wall surface of the side plate. 2. The casing structure for a vehicle-mounted device according to claim 1, wherein the protruding pieces are provided at two corners on the rear end side of the top plate of the cover member. 3. The vehicle-mounted device according to claim 2, wherein a stepped portion that comes into contact with an outer wall surface of the side plate of the chassis is provided at an edge of the side plate portion of the cover member on the rear end side. Equipment housing structure. 4. The casing structure for an on-vehicle device according to claim 1, wherein an edge portion of the side plate of the chassis on the rear end side is bent into a folded shape. .