JP3303535B2 - VTR frame structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide chassis provided with a mechanical chassis for supporting a reproducing head and the like, a reel base for supporting a recording cassette, and slidably connected to the mechanical chassis. VT with
R (Video Tape Recorder) Frame Structure

[0002]

2. Description of the Related Art A frame structure of a VTR in which a slide chassis for mounting a cassette is slidably coupled in a front-rear direction with a mechanical chassis for supporting a reproducing head and the like is known. The structure shown in FIG. 3 is employed. In the frame structure shown in FIG. 2, the substrate portion 2 of the mechanical chassis 1 and the substrate portion 4 of the slide chassis 3 are arranged so as to face each other in parallel, and stand vertically on the substrate portion 2 of the mechanical chassis 1 one by one in the left, right, front and rear directions. Four vertical axes 31 provided
The slide chassis 3 is supported on the mechanical chassis 1 by being engaged with the elongated holes 33 of the substrate portion 4 of the slide chassis 3. Each elongated hole 33 extends in the front-rear direction of the mechanical chassis 1, and the slide chassis 3 is disposed so as to be slidable in the front-rear direction of the mechanical chassis 1. As a result, the rotation of the slide chassis 3 is restricted.

Further, the frame structure shown in FIG. 3 is composed of two vertical axes 31 erected vertically on the left and right sides of the left side of the substrate section 2 of the mechanical chassis 1 and the right and left side walls 17 of the mechanical chassis 1.
, Four horizontal shafts 35 horizontally protruding two by two at an interval in the front and rear, and a slide chassis 3 engaged with each vertical shaft 31.
The slide chassis 3 is slidably supported on the mechanical chassis 1 in the front-rear direction by the long holes 33 of the substrate portion 4 and the long holes 37 formed in both side walls 25 of the slide chassis 3 and engaged with the horizontal shaft 35. Have been. The two vertical axes 31 and the four horizontal axes 35 secure the height of the slide chassis 3 and restrict the rotation.

[0004]

However, in the support structure shown in FIG.
It is necessary to provide the slide chassis 3 with the vertical axis 31 of the book and four long holes 33 that engage with these vertical axes 31,
The space efficiency of the slide chassis 3 on the substrate portion 4 is poor, and there is a problem that hinders miniaturization. Further, in the support structure shown in FIG. 3, two horizontal axes 35 near the two vertical axes 31 are not useful and are wasted, and these are wasted in space and the number of parts increases. was there. The present invention has been devised in view of the above circumstances, and an object of the present invention is to maintain the height of the slide chassis and to restrict rotation, to reduce the number of parts, increase space efficiency, and reduce the size. An object of the present invention is to provide a VTR frame structure that can be used.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a mechanical chassis having a substrate portion on which a reproducing head and the like are provided, and a recording chassis arranged opposite to the substrate portion of the mechanical chassis. A slide chassis having a substrate portion on which a reel base of a cassette or the like is provided.
In the frame structure of the TR, a side plate erected from one side of the left and right sides of the substrate portion of the mechanical chassis, a side wall erected from the substrate portion of the slide chassis so as to face the side plate of the mechanical chassis, and a side plate A lateral axis provided on one of the side walls and the side plate; a lateral hole provided on the other of the side plate and the side wall and extending in the front-rear direction to engage with the horizontal axis; Two vertical axes which are vertically erected from the other side and are provided at an interval in the front-rear direction, and a tip of each vertical axis provided on the board portion of the slide chassis so as to extend in the front-rear direction. A screw hole is provided on at least one end face of the two vertical axes, a screw is coupled to the screw hole, and the screw is used for the vertical axis. The slide chassis is slidably inserted through the hole.

Further, the present invention is characterized in that the side plate is formed integrally with a substrate portion of the mechanical chassis. Further, the invention is characterized in that the horizontal axis protrudes from the side plate, and the elongated hole is formed in the side wall. Further, the present invention is characterized in that two horizontal axes are provided at an interval in the front-rear direction, and two long holes for the horizontal axis are provided at an interval in the front-rear direction.

[0007]

The slide chassis can be slid in the front-rear direction with respect to the mechanical chassis by the engagement between the horizontal axis and the elongated hole for the horizontal axis and the engagement between the two vertical axes and the elongated hole for the vertical axis. The slide chassis is supported, the required height of the slide chassis is maintained, and the rotation of the slide chassis is restricted. Further, since only two longitudinal axes and a long hole engaged with the two longitudinal axes are provided in the substrate portions of both the mechanical chassis and the slide chassis, the space efficiency on the substrate portion of the slide chassis is increased, and the size is further reduced. It is possible to contribute to In addition, a screw is connected to the screw hole provided at the tip of the vertical axis, and the slide chassis is slidably sandwiched by this screw, so that the slide chassis is securely attached to the mechanical chassis, and stable sliding operation is possible. Become.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a slide chassis slidably provided on a mechanical chassis according to the present embodiment. In this embodiment, a slide chassis 3 is disposed on a mechanical chassis 1 on which a reproducing head or the like is supported, with both substrates 2 and 4 facing each other in parallel. A reel base and the like are provided on the upper side, and a cassette for recording is supported. On the left side of the substrate portion 2 of the mechanical chassis 1, two vertical axes 5, 7 having a predetermined height are vertically erected at an interval in the front-rear direction which is the sliding direction X. Slide chassis 3 corresponding to 7
On the left side of the substrate portion 4, two long holes 9 and 11 (long holes for the vertical axis) are formed extending in the front-rear direction. A screw hole is formed at the tip end surface of each of the longitudinal axes 5 and 7, and the head is circularly inserted through the elongated holes 9 and 11 from the upper portion of the substrate portion 4 of the slide chassis 3. Plate-shaped screws 13 and 15 are screwed. Then, the board portion 4 of the slide chassis 3 is slidably sandwiched between the lower surfaces of the heads of the screws 13 and 15 and the tip surfaces of the vertical axes 5 and 7.

Further, side walls 25 are formed to be bent vertically upward on both left and right sides of the board portion 4 of the slide chassis 3, and opposed to the side walls 25 on the right side of the board portion 2 of the mechanical chassis 1. Side plate 17 is mounted vertically by screws 19, 19 as shown. On the side plate 17, two horizontal shafts 21 and 23 are horizontally protruded toward the side wall 25 of the slide chassis 3 with an interval in the front-rear direction. The right side wall 25 corresponding to the horizontal axes 21 and 23 has
7 and 29 (horizontal holes for the horizontal axis) are formed to extend in the front-rear direction, respectively, and the horizontal axes 21 and 23 are engaged with the long holes 27 and 29, respectively.

Then, the engagement of the left two longitudinal axes 5, 7 with the elongated holes 9, 11 and the right two lateral axes 21, 23
The slide chassis 3 is slidably supported in the front-rear direction with respect to the mechanical chassis 1 as shown by an arrow X in FIG. While maintaining the height T, FIG.
The rotation of the slide chassis 3 as shown by the arrow R in the middle is restricted.

Therefore, according to this embodiment, the two vertical axes 5, 7 and the elongated holes 9, 11 engaging with them, the two horizontal axes 21, 23, and the elongated holes 27 engaging with them. , 29, the slide chassis 3 is slidably supported on the mechanical chassis 1, so that the height for keeping the slide chassis 3 horizontal can be ensured and the rotation of the slide chassis 3 can be restricted. Also, each of the board portions 2 and 4 of the mechanical chassis 1 and the slide chassis 3 is provided with only two vertical axes 5 and 7 and two long holes 9 and 11 that engage with the vertical axes. Is reduced, space efficiency is increased, and it is possible to contribute to further downsizing. Further, since the screws 13 and 15 are attached to the upper portions of the longitudinal axes 5 and 7 through the elongated holes 9 and 11, one of the attachment of the elongated hole 9 and the screw 13 or the attachment of the elongated hole 11 and the screw 15 is performed. It is also possible to provide a rotational fitting type mounting structure.

In the above embodiment, the horizontal shafts 21 and 23 are protruded from the side plate 17 of the mechanical chassis 1 so that the slide chassis 3 is provided.
Holes 27 and 29 are provided in the side wall 25 of the
3 may be provided on the side wall 25 and the long holes 27 and 29 may be provided on the side plate 17, and the same effect is obtained. Further, in the above-described embodiment, two horizontal shafts 21 and 23 and two long holes 27 and 29 engaging with the horizontal shafts are provided. However, one horizontal shaft 21 or 23 and one long hole 27 or 29 may be provided. It is possible, and in this case, the number of parts can be further reduced. Further, the side plate 17 of another component is erected on the mechanical chassis 1 by screws.
7 may be formed integrally with the mechanical chassis 1.

[0013]

As described above, according to the present invention, 2
A longitudinal axis of the book, a longitudinal slot engaging with the longitudinal axis,
The slide chassis is slidably supported with respect to the mechanical chassis by the horizontal shaft of the book and the elongated hole for the horizontal shaft that engages with the book, so that it is possible to reliably maintain the height that keeps the slide chassis horizontal, The rotation of the slide chassis can be restricted. In addition, since each of the mechanical chassis and the slide chassis has only two vertical axes and a long hole for the vertical axis that engages with the two vertical axes, the number of parts is reduced, thereby reducing costs and space efficiency. And the size can be further reduced. Further, according to the present invention, a screw hole is provided on at least one of the tip surfaces of the two vertical axes, a screw is coupled to the screw hole, and the slide chassis can be slid with the screw through the elongated hole for the vertical axis. , The slide chassis is firmly attached to the mechanical chassis, and a more stable sliding operation is possible.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a slide chassis slidably provided on a mechanical chassis according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a slide chassis according to a conventional example.

FIG. 3 is a perspective view showing another slide chassis according to a conventional example.

[Explanation of symbols]

 Reference Signs List 1 mechanical chassis 3 slide chassis 5, 7 longitudinal axis 9, 11 elongated hole 13 screw 17 side plate 21, 23 horizontal axis 25 side wall 27, 29 elongated hole X front and rear direction

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-342834 (JP, A) JP-A-5-267861 (JP, A) JP-A-4-2883464 (JP, A) 203545 (JP, A) Japanese Utility Model Hei 1-124952 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G11B 33/12 302 G11B 33/12 313

Claims (4)

(57) [Claims] 1. A mechanical chassis having a substrate portion on which a reproducing head and the like are provided, and a slide chassis having a substrate portion disposed opposite to the substrate portion and provided with a reel base of a recording cassette and the like. In the frame structure of the VTR, a side plate erected from one of left and right sides of the substrate portion of the mechanical chassis, and a side wall erected from the substrate portion of the slide chassis so as to face the side plate of the mechanical chassis. A horizontal axis provided on one of the side plate and the side wall; a horizontal axis elongated hole provided on the other of the side plate and the side wall and extending in the front-rear direction to engage with the horizontal axis; 2 and the longitudinal axis of which is erected perpendicularly from the other side of the right and left sides of the substrate portion provided at intervals in the longitudinal direction of the substrate portion of the slide chassis, extending in the longitudinal direction Provided And a longitudinal axis slot that engages with the tip end portion of the respective longitudinal axis, a screw in at least one distal end surface of one of the longitudinal axes of the two
A hole is provided, and a screw is connected to this screw hole.
The slide chassis can be slid through the slot for the vertical axis.
A VTR frame structure characterized by having a configuration sandwiched between noh . 2. The VTR frame structure according to claim 1, wherein said side plate is formed integrally with a substrate portion of said mechanical chassis. 3. The VTR frame structure according to claim 1, wherein the horizontal axis protrudes from the side plate, and the long hole is formed in the side wall. 4. The VTR according to claim 1, wherein two horizontal shafts are provided at an interval in the front-rear direction, and two long holes for the horizontal axis are provided at an interval in the front-rear direction. Frame structure.