JPS6236792A - Attachment device for cassette holder - Google Patents

Abstract

PURPOSE:To perform simultaneously the fixture of an attachment base onto a chassis with screws and the matching between a fulcrum pin and a fulcrum hole, by fixing one of a pair of right and left attachment bases onto the chassis by screws and then shifting the other attachment base toward the axial lines of both the fulcrum pin and the fulcrum hole on the chassis. CONSTITUTION:When a cassette holder 6 is attached, an attachment base 4a at one side is interlocked to a pair of right and left projections 29 provided in a body on a chassis 12 via a pair of right and left round holes 28. Under such conditions, a pair of right and left screws 31 are put through a pair of right and left screw holes 30 which are drilled vertically and then screwed into a pair of right and left female screw holes 32 by means of an automatic screwing machine. Thus the base 4a is first fixed on the chassis 12 by screws. Then an attachment base 4b at the other side which are interlocked to the projections 22a and 22b on the chassis 12 via the slits 21a and 21b is shifted up to the position shown by a solid line in the direction of an arrow head (e). Under such conditions, a fulcrum hole 15a at the other side of the holder 6 is fitted to a fulcrum pin 13a at the other side of the base 4a respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cassette holder mounting device most suitable for application to a cassette type recording/reproducing device such as a cassette type tape recorder or a VTR.

[Summary of the Invention] In the present invention, a cassette holder is rotatably mounted on a pair of left and right mounting bases provided on a chassis via a pair of left and right fulcrum pins and a pair of left and right fulcrum holes into which these are fitted. In a cassette holder mounting device for a cassette tape recorder, etc., one of the pair of left and right mounting stands? That one mounting base by screwing onto the chassis? By moving the fulcrum pin and the fulcrum hole on the chassis in the axial direction, the mounting base can be screwed onto the chassis and the branch pin and the fulcrum hole can be fitted at the same time. be.

[Conventional technology]

Traditionally, cassette tape recorders have been used.

A pair of left and right fulcrum pins are integrally provided on both left and right sides of a pair of left and right mounting bases screwed onto the chassis, and a pair of left and right fulcrum holes into which these fulcrum pins are fitted are used to mount the left and right pair of cassette holders. The left and right mounting pieces of the cassette holder are pushed open laterally and outwardly against elasticity, and the pair of left and right fulcrum holes are fitted into the pair of left and right branch pins, and the cassette holder is attached to the left and right sides. There is one that is rotatably mounted on a pair of mounts.

[Points that the invention attempts to solve]

According to this conventional structure, since screws are not used for the pair of left and right fulcrum pins, there is no possibility of the screws loosening or falling off due to long-term use. To let it happen.

When the left and right mounting pieces of the cassette holder are pushed open laterally and outwardly against elasticity, the cassette holder is likely to be deformed or damaged, so there is a need for quality control.

The process of assembling the cassette holder by pushing the left and right mounting pieces of the cassette holder outward against elasticity and fitting the pair of left and right fulcrum holes to the pair of left and right branch pins is highly automated. Have difficulty.

The present invention can be installed by simply screwing it onto the chassis.
At the same time, the fulcrum pin and the fulcrum hole can be fitted together.

[Means to solve the problem]

In the above-mentioned cassette holder mounting device, the present invention has a method in which one of the pair of left and right mounting bases marked with # is engaged with a protrusion on the chassis through a long hole provided on the bottom surface of the mounting base. A mounting base is mounted on the chassis so as to be movable in the axial direction of the branch pin and the fulcrum hole, and a screw insertion hole is provided through one of the mounting bases from the top surface to the bottom surface, and the screw insertion hole is inclined at one side on the upper end side. When screwing one of the mounting bases onto the chassis by inserting a screw from above into the screw insertion hole of one of the mounting bases and screwing it into a female threaded hole provided on the chassis.

By inserting the tip of this screw in such a way that it is pressed against the inclined surface of the screw insertion hole, one of the mounting bases is moved in the axial direction by the guiding action of the inclined surface, and the pair of left and right fulcrum pins are moved. and one of the fulcrum holes is configured such that one of the fulcrum pins is fitted into one of the fulcrum holes.

[For production]

In the present invention, when one of the pair of left and right mounting bases is screwed onto the chassis, one of the mounting bases is moved on the chassis in the axial direction of the pair of left and right fulcrum pins and the fulcrum hole. Since one of the fulcrum pins is fitted into one of the fulcrum holes, one of the fulcrum pins can be screwed onto the chassis and one of the fulcrum pins can be engaged with one of the fulcrum holes at the same time.

〔Example〕

An embodiment in which the present invention is applied to an auto-reverse machine for a cassette tape recorder will be described below with reference to the drawings.

First, Fig. 5 shows the entire tape recorder, and the upper surface of the tape recorder body] aK is a pair of left and right reel stands 2a, 2b, capstans 3a, 3b, and a mounting stand 4.
A, 4b fathoms are attached, and a plurality of operation buttons 5 for mode switching, cassette ejecting, etc. are attached to the front [b]. And the cassette holder 6 is attached to the mounting base 4.
a, 4b so as to be rotatable in the directions of arrows a and b, and a cassette lid 7 is attached to the upper side of the cassette holder 6. A magnetic head 8, a pair of left and right pinch rollers 9a, 9b, etc. are attached to the bookmark set holder 6.

Then, with the cassette holder 6 and the cassette lid 7 opened in the direction of the arrow EDa to the open position fIt shown by the solid line, insert the compact cassette cassette O obliquely into the cassette holder 6 from the direction of the arrow C, and then insert the cassette ] After inserting the magnetic head 8 and pinch rollers 9a, 9bQ into the front opening (not shown) of 0, close the cassette holder 6 and cassette lid 7 in the direction of the arrow at the closed position f&! indicated by the @ line. .

Cassette) 10 is the reel stand 2a, 2b and capstan 3a
, 3b, etc., and is configured to be attached to the recording/reproducing position attached to the recorder. The booklet set lid 7 is locked in the closed position by a locking mechanism (not shown).After installing the cassette, press the playback (record) button and press the cassette 10.
The inner magnetic tape (not shown) is attached to the pinch rollers 9a and 9b.
At the same time, the reel stands 2a, 2b are selectively driven.

The magnetic tape (not shown) is run normally and then in reverse, and the desired reproduction (recording) is performed by the magnetic head 8. After recording (reproduction), the magnetic tape (not shown) is run normally and then in reverse. , the cassette N7 is unlocked in the closed position, so open the cassette holder 6 and cassette lid 7 in the direction of arrow a in the open position t!, and pull out the cassette 10 from inside the cassette holder 6 in the direction of arrow d. I can do it.

Next, the mounting device for the cassette holder 6 will be explained with reference to FIGS. YJIIA to FIG. 4B.

First, as shown in FIGS. 3 to 4B, the side surface of the tape recorder main body A is a horizontal chassis made of gold m82.
- A pair of left and right mounting bases 4a, 4
bG2 are screwed to the upper portions of both left and right false corners on the rear end side of the chassis 12, as will be described later. A pair of right and left fulcrum pins 13a, 13b are integrally provided on the mounting bases 4a, 4b so as to extend horizontally outward on the left and right sides, and the pair of right and left fulcrum pins 13b of the cassette holder 6 are mounted on the same axis.] 4a, ] 4bK is the fulcrum pin 13a
, 13b are fitted into a pair of left and right fulcrum holes 15m.
] 5 b dj is provided. The cassette holder 6 is attached to the mounting bases 4a and 4 by means of the fulcrum holes 15a and 15b.
The fulcrum pins 13a, ] 3bK of b are fitted,
It is mounted so as to be rotatable in the directions of arrows a and b between the open position shown in FIG. 4A and the open position shown in FIG. 4B. The booklet set lid 7 is fitted onto the upper side of the cassette holder 6, and a pair of right and left fulcrum pins (however, one is also used as a screw)] 6 allows it to rotate within a certain angle with respect to the cassette holder 6 with the arrow a.
, t) is rotatably mounted. When the cassette set holder 6 is rotated in the direction of the arrow a to the open position shown in FIG. The cassette holder 6 is configured to be brought into contact with a pair of left and right stoppers 18 to determine the open position 11J of the cassette holder 6.

Next, details of the mounting device for the trap and cassette holder 6 will be explained with reference to FIGS. 1A to 2B.

First, one of the pair of left and right mounting bases 4g and 4b, one of the mounting bases 4b, has a pair of left and right elongated holes 2 provided in its bottom surface 20b.
]! , 2]b, a pair of left and right protrusions 22a integrally provided on the chassis 12.

22b, and this one mounting base 4b is engaged with the fulcrum pins 13a, ]3b and the fulcrum hole 15a on the chassis ]2.
,】! It is attached so that it can be moved freely in the direction of the thin line P of 5b.

Next, the protrusions 22a and 22b are made of a metal A plate]
These are cylindrical protrusions that are burred into 2, and internally threaded holes 23a and 23b are vertically formed inside them. Also, this one mounting base 4b has its upper surface 24b.
A pair of screw insertion holes 25a are vertically penetrated from the bottom surface 20b to the bottom surface 20b.

25b, and an inclined surface 26 is provided on one side of the upper end of one screw insertion hole 25a.

Next, when installing the cassette holder 6.

First, as shown in FIGS. 1A and 2A, the other mounting base 4a is attached to a cylindrical shape (burred one) integrally formed on the chassis 2 by a pair of left and right round holes 28 provided on the bottom surface 20a thereof. With the pair of left and right protrusions 25IC engaged, an automatic screw tightening machine (not shown) is used to vertically penetrate the other mounting base 4a from the top surface 24a to the bottom surface 20a. Insertion hole 30V
c A pair of left and right female screw holes 32 into which the left and right pair of screws 31 are inserted, and both screws 31 are formed inside the circumferential projection 29.
Screw it into the other mounting base 41'Y chassis】2
Screw the top first.

next,! The MIA diagram and As shown in FIG. 2A, the other fulcrum hole 15a of the cassette holder 6 and the other fulcrum pin of the other mounting base 4a ] 3a They are positioned on the same axis P on the outside of one of the fulcrum pins 13b.

Next, as shown in FIG. 1A, while being held vertically at the tip (lower end) of the driver bit 34 of the automatic screw tightening machine and being rotated in the direction of arrow f, which is vertically downward, from a position directly above one female threaded hole 23a. Tip (lower end) of screw 35 being lowered
35a into one screw insertion hole 25a of one mounting base 4b.
is pressed against the inclined surface 26 of. Then, due to the guiding action of the inclined surface 26, one of the mounting bases 4b is moved in the direction of the arrow g, which is the direction of the axis P, as shown by the chain line in Fig. 1Δ, and the screw insertion holes 25a, 25b are opened as shown in Fig. 1B. At the same time as it is moved directly above the female screw holes 23a and 23b, one of the fulcrum pins 13b of one of the mounting bases 4b is moved into one of the fulcrum holes 15b of the cassette holder 6 in the direction of arrow g, as shown in FIG. 2B. are automatically mated.

On the other hand, as shown in FIG. B and FIG. 28, the screw 35, which is lowered while being rotated in the direction of arrow f by the driver bit 34, is screwed into the female threaded hole 23a on one side. , as shown in FIGS. 1B and 2B, attach the other screw 36 to this one mounting base 4.
b from the other screw insertion hole 25b to the other female screw hole 23b
Finally, screw this one mounting base 4b onto the chassis ]2.

Although the embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various effective changes can be made based on the technical idea of the present invention.

For example, in the embodiment, the support pins 13a and 13b are provided on the mounting bases 4a and 4b, and the fulcrum holes 15a and 5b are provided on the cassette holder 6 side, but these may be provided on opposite members.

Furthermore, the present invention is not limited to tape recorders that use compact cassettes, but is applicable to various cassette-type recording and reproducing devices that use various tape cassettes and disk cassettes (disc cartridges).

〔Effect of the invention〕

This invention allows you to simply screw the mounting base onto the chassis.
Since the fulcrum pin and the fulcrum hole can be fitted together at the same time, attachment of the cassette holder is extremely simple, and automatic assembly by an automatic assembly machine is possible. In addition, there is no deformation or breakage of the cassette holder, making quality control easier.Also, since screws are used for the pair of left and right fulcrum pins, there is no problem of the cassette holder falling off due to loosening of the screws. .

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention. Figures 1A and 1B are sectional views of the main parts, Figures 2A and 2B are plan views of the main parts, and Figure 3 is an exploded perspective view of the whole.
Figure g4A and Figure 4B are side views of the main parts. FIG. 5 is an overall perspective view. Also, the symbols used in the drawings are C1 1...Tape recorder main body 4a...
...Mounting base 4b... I 6... Force/mark... ◆ Cassette holder 12... Chassis 13a... Fulcrum pin 13b... 15a... Fulcrum hole 15b... Fulcrum hole 2] a... Long hole 22a... Protrusion 23a... Female threaded hole 25a... Screw insertion hole 26... ... Slanted surface 34 ...... Driver bit 35 ...
...It's a screw.

Claims (1)

[Scope of Claims] The cassette holder is rotatably mounted on a pair of left and right mounting bases provided on the chassis via a pair of left and right fulcrum pins and a pair of left and right fulcrum holes into which these are fitted. In the mounting device, one of the pair of left and right mounting bases is engaged with a protrusion provided on the chassis through a long hole provided on the bottom surface of the mounting base, and the one mounting base is mounted on the chassis. The fulcrum pin and the fulcrum hole are mounted so as to be movable in the axial direction, and an inclined surface is provided on one side of the upper end side of the screw insertion hole that is provided through the fulcrum pin and the fulcrum hole from the top surface to the bottom surface of the fulcrum pin. When screwing one of the mounting bases onto the chassis by inserting the screw inserted into the screw insertion hole of the mounting base from above into the female screw hole provided on the chassis, insert the tip of this screw into the inclined surface of the screw insertion hole. By pushing the fulcrum pin through the fulcrum hole, one of the mounting bases is moved in the axial direction by the guiding action of the inclined surface, and one fulcrum pin of the pair of left and right fulcrum pins and the fulcrum hole is inserted into the other fulcrum pin. A mounting device for a cassette holder, characterized in that it is configured to fit into a fulcrum hole.