JPH0341690A - Protection fixture for carrying cassette deck - Google Patents

Abstract

PURPOSE:To surely support a cassette and to facilitate loading/ejection by providing a main body loaded from a loading port, a projection in press contact from the front face of a front face plate to the circumferential ridge of the loading port and a claw locking with the circumferential ridge of the loading port from the rear side of the front plate. CONSTITUTION:The upper face of the main body 12 is in press contact onto an elevator device and the lower face is in press contact with tops 52a, 53a of two reel shafts in a cassette deck 61 and the loading length is formed so activate an spring force of a revising spring 47 energizing the main body 12 in the ejecting direction. Moreover, the projection 30 is in press contact onto the circumferential ridge of the loading port 62 from the front face of the front face plate 63 and a claw 14 is locked with the circumferential ridge of the loading port 62 from the rear side of the front plate 63. Thus, the holder of the elevator device of the cassette deck 61 is supported surely without a play and the damage of the elevator device during transportation is prevented and the removal of the protection device 11 is facilitated.

Description

[Detailed Description of the Invention] Overview In a protective device for suppressing the rattling of an elevator mechanism during transportation of a cassette deck, the protrusion abuts the front plate of the main body inserted into the deck, thereby preventing the protection device from shaking. The claw prevents it from getting stuck in, and also prevents it from being ejected due to the spring force of the reversal spring. This allows the main body to be held securely within the deck, and the upper surface of the main body contacts the elevator mechanism, and the lower surface contacts the tops of the two reels, so that the holder of the elevator mechanism is not lowered.
Holds without rattling.

INDUSTRIAL APPLICATION FIELD The present invention is suitably implemented in a car-mounted cassette deck, etc., and is a cassette configured such that a cassette half inserted through an insertion slot is moved to a predetermined position by an elevator mechanism to perform recording/playback, etc. This item relates to protective equipment for deck elevator mechanisms against vibrations and shocks during transportation.

Prior Art The elevator mechanism that lifts/lowers the cassette half inserted through the insertion opening formed in the front panel to load or eject it to a predetermined position is a movable part, and is not susceptible to damage due to impact or impact during transportation. be.

Therefore, during transportation, it is necessary to fix the holder of the elevator mechanism that holds the cassette half.

Conventionally, the following two structures have been mainly used as a fixing structure for this holder.

14th [As shown in 1, a structure in which the holder 3 is clamped and fixed from the outside of the deck body 1 with screws 2.

■Insert a stick or plate into the cassette insertion slot, operate a lever, etc. to simulate inserting a cassette half,
Structure that lowers the holder.

In the structure (2) above, the cassette insertion slot 4 is covered with a label 5 fixed by the screw 2. This label 5 includes a note indicating that the deck body 1 should be used after removing the screws 2.

Further, the above-mentioned structure (2) utilizes the fact that when the holder of the elevator mechanism is lowered and the force 7 is loaded in a predetermined position, the holder is fixed.

Problems to be Solved by the Invention In the structure (2) above, it takes time and effort to attach and remove the screws 2. In addition to the screws 2, screws are also used on the deck body 1 for fixing hospital books, etc., as shown by the reference numeral 6. If the screws 2 fixing the holder 3 are not distinguishable from the remaining screws 6, there is a risk that the other screws 6 may be removed by mistake.

In the structure (2) above, since the holder of the elevator mechanism remains lowered, there is a risk that the user may insert the cassette half from the insertion opening without noticing this, and the half may become stuck inside, causing a malfunction.

The purpose of the present invention is to provide an elevator mechanism for a cassette deck.
To provide a cA protector for transporting a cassette deck, which can be securely held without rattling against vibrations and impacts, and which can be easily attached and detached.

Means for Solving the Problems The present invention is a transport protector that prevents rattling in the elevator mechanism of a cassette deck that raises/lowers recording media, the device comprising: a main body that is inserted through an insertion opening for use with the camera; a protrusion that abuts the periphery of the insertion opening from the front side of the front plate; and a claw that engages the periphery of the insertion opening from the back side of the front plate; In this case, when the side of the elevator mechanism is raised, the upper surface abuts against the elevator mt*.

The lower surface is formed so as to come into contact with the tops of the two reel shafts in the cassette deck, and the length in the insertion direction is within the range of displacement in which the spring force of the reversal spring is generated in the direction of ejecting the main body. It is characterized in that it is formed in a length such that it comes into contact with an abutment piece that discharges the main body by elastic force.

Function The protective device according to the present invention includes a main body, a protrusion, and a claw. The main body is inserted through the recording medium insertion slot formed on the front plate of the cassette deck, and when the elevator mechanism is ascending, the upper surface is in contact with the elevator mechanism, and the lower surface is in contact with the two inside of the cassette deck. It is formed to contact the top of the reel shaft, and its length in the insertion direction is
The spring force of the reversing spring that urges the main body in the ejecting direction is
The displacement amount is formed within a predetermined range.

Furthermore, the protrusion contacts the periphery of the insertion opening from the front side of the front plate, and the claw engages the periphery of the insertion opening from the rear side of the front plate.

On the other hand, when the cassette half is inserted into the cassette deck, the tip of the half comes into contact with the contact piece, and the corresponding contact piece is displaced in the insertion direction. This contact piece.

The reversing spring is biased by a reversing spring, and when the amount of displacement of the reversing spring by the inserted cassette half is within the predetermined range, the reversing spring moves the contact piece in the opposite direction to the insertion direction, that is, in the ejection direction. When the displacement amount is exceeded, the contact piece is separated from the cassette half and held at a predetermined position.

Therefore, the main body inserted through the insertion opening is held by the contact piece and the claw without wobbling in the insertion direction. Also, at this time, the upper surface of the main body is in contact with the elevator R, and the lower surface is in contact with the tops of the two reel shafts, so that the direction perpendicular to the insertion direction, that is, the elevator I! 1
IS holder is held without wobbling in the direction of displacement.

Furthermore, when inserting the main body, before the displacement amount of the reversing spring exceeds the predetermined range, the protrusion comes into contact with the periphery of the front plate, so that the main body is inserted into the insertion slot and cannot be taken out. It is possible to prevent the device from getting stuck in the condition.

Embodiment FIG. 1 is a perspective view of a protective device 11 according to an embodiment of the present invention, FIG. 2 is a perspective view of the protective device 11 seen from the bottom, and FIG. 3 is a plan view of the protective device 11. 4 is a bottom view thereof, FIG. 5 is a side view thereof, FIG. 6 is a front view thereof, and FIG. 7 is a rear view thereof.

The cA protector 11 includes a main body 12 that is inserted into an insertion opening formed on the front plate of the cassette deck, and a protrusion that comes into contact with the periphery of the insertion opening when the main body 12 is inserted to a predetermined position. The flange 13 and the locking pawl 14 that locks onto the peripheral edge of the insertion port from the back side of the front plate at the predetermined position are integrally molded from a material such as synthetic resin.

The main body 12 is formed to have a thickness equal to that of the cassette half, and the main body 12 has recesses 21 to 23 formed therein to make the camera lighter and to save raw materials.
The flange 13 is formed to extend from the proximal end 20 on the upstream side in the longitudinal direction of 2, that is, in the insertion direction indicated by reference numeral 45.

In the proximal end portion 20, two grooves 24 and 25 parallel to the insertion direction are formed near the center portion in the width direction.
The part of the flange 13 separated by these grooves 24, 25 becomes the operating part 26 to be described.

Further, in a portion 27 sandwiched between the arms 24 and 25 of the proximal end portion 20, the free end side is connected to the operating portion 26, and the proximal end side has a locking claw that becomes higher toward the upstream side in the insertion direction. 14 is formed.

A guide protrusion 30 is formed on the bottom surface of the proximal end portion 20 and has an oblique side 29 that increases in height toward the upstream side in the insertion direction. The thickness 11 between the tip of the guide protrusion 30 and the upper surface 64 of the base end portion 20 is smaller than the width of the insertion slot, so that when the main body 12 is inserted into the insertion slot of the cassette deck, the guide protrusion 30 comes into contact with the inner peripheral surface of the insertion port.

No. 8I2I is a simplified perspective view of the elevator R side 31 of the cassette deck. In addition, in this Figure 8,
A tape drive IigIm such as a pinch roller, capstan or motor, and an erasing head are omitted.

The lIl[34 of the base 33 has support 1! ! A vertical movement mechanism 35 is attached to drive the holder 32 up/down so as to be freely angularly displaceable about the axis of the holder 41 .

The vertical movement mechanism 35 rotatably supports the holder 32 at the connecting portion 50. A lever 36 is swingably attached to the vertical drive f135 by a support shaft 42. This lever 36 is biased in the direction of the arrow 37 by a spring or the like (not shown), and when the holder 32 is raised, the lever 36 is angularly displaced in the direction of the arrow 37. An engaging piece 38 formed at one end of the base 33 engages with the upper end surface of the side plate 39 of the base 33, and the holder 32 is thus raised and held.

A detection piece 43 is formed at the other end of the lever 36, and when the half is inserted into the holder 32 from the insertion opening, the tip of the half touches the contact piece 44. They abut and are displaced in the insertion direction 45. When the cassette half is further pushed in, the contact piece 44 contacts this detection piece 43 and angularly displaces the lever 36 in the direction opposite to the arrow 37, thereby releasing the locked state of the engagement piece 38. Then, the vertical movement mechanism 35 is angularly displaced around the support shaft 41 by a not-shown flexure or the like, and the holder 32 is thus lowered.

When the holder 32 is lowered, the magnetic head 51 is moving toward the cassette half, and during recording/reproduction,
It moves forward further and comes into sliding contact with the magnetic tape. Further, the reel shafts 52 and 53 protruding from the base 33 fit into the hubs around which the magnetic tape is wound, and rotate these hubs to run the magnetic tape.

When the cassette tape is ejected, the magnetic head 5
1 moves backward, and a vertical movement mechanism 3 is moved by a drive mechanism (not shown).
5 is angularly displaced and the holder 32 is thus raised,
The abutment piece 44 is moved in the insertion direction 45 by a drive mechanism (not shown).
and the cassette half is ejected.

The contact piece 44 is fixed to a guide member 46 in the vertical movement mechanism 35 that can move within a guide groove 49 extending parallel to the insertion direction 45 . The connection point P2 of the guide member 46 rests on one end of the reversing spring 47, and the other end of the reversing spring 47
1135 at a predetermined position P1.

Therefore, when the cassette half is inserted, the contact piece 44 moves in the insertion direction 45, and when it is reversed, the connection point P2 at one end of the 1w 47 is the intersection of the perpendicular lines drawn from the fixed position P1 to the guide groove 18. In the range W1 up to P3, the reversing spring 47 generates a force in the direction opposite to the insertion direction 45, that is, in the direction of ejecting the cassette half, and beyond the range W1, The reversing spring 47 biases the abutment piece 44 in the insertion direction 45 .

FIG. 9 is a sectional view showing the state in which the protective equipment 11 is mounted on the cassette deck 61. The cA protector 11 is inserted into the insertion port 62
When inserted from the tip 12 of the main body 12 [i is the contact piece 4
4 , thereby exerting a stiffening force on the protector 11 in the ejection direction, opposite to the insertion direction 45 , which is generated by the reversing spring 47 . When the protector 11 is further inserted against this force, the guide protrusion 30 and the locking claw 14 come into sliding contact with the inner circumferential surface of the insertion opening 62. As a result, the portion 27 in which the locking pawl 28 is formed is deflected, and a resilient force is generated.

When the protector 11 is further inserted and the stop claw 14 passes through the insertion port 62, the locking claw 14 is locked on the back side of the front plate 63 at the periphery of the insertion port 62 due to the elastic force. As a result, the protective device 11 is prevented from being removed, and the elastic force of the reversing spring 47 prevents the protective device 11 from being removed in the insertion direction 4.
5 without wobbling.

Further, the thickness of the main body 12 is determined at this time by the thickness of the upper surface 6 of the main body 12.
6 is in contact with the holder 32, and the lower surface 65 is the top portion 52a of the reel fi52.53.

53; formed to a thickness that contacts t. Therefore, the protector 11
is composed without any wobbling in the vertical direction as shown in Figure 9.

Furthermore, the length of the main body 12 in the insertion direction 45 is such that when the main body 12 is inserted until the locking claw 14 locks with the front plate 63 as described above, Range W
1, that is, within the range in which the reversing spring 47 generates a stiffness force in the discharge direction.

Therefore, the holder 32 does not descend when the protective device 11 is inserted, and the holder 32 can be held in an elevated state. It is possible to prevent malfunctions that would make the system inoperable.

When the cassette deck 61 is used, the operating section 26 is pushed downward in FIG. 9, and the protective device 11 is removed.

FIG. 10 is a perspective view of another practical am retainer 71 of the present invention, which is similar to the embodiment described above, and corresponding parts are given the same reference numerals. In this embodiment, the operating portion 72 is formed to protrude from the flange 13, so that the removal operation can be performed easily.

FIG. 11 shows yet another embodiment of the rP4fT protective device 8 of the present invention.
FIG. 1 is a perspective view of the embodiment 1, similar to the previously described embodiment, and corresponding parts bear the same reference numerals. In this embodiment, the main body 82
The thickness 12 of the portion 83 on the magnetic head 51 side is changed from the thickness e3 of the portion 84 corresponding to the reel shaft 52.53 side depending on the shape of the insertion port 62 indicated by 12I2I.
#? It is thicker than A13a. Thereby, the protector 81 is not pushed in upside down, and wobbling of the holder 32 can be reliably suppressed.

FIG. 13 is a bottom perspective view of a protective device 91 according to another embodiment of the present invention, which is similar to the previous embodiment, and corresponding parts are given the same reference numerals. , main body 92
A protrusion 94 protruding by a height of 14 is formed on the lower surface 93 of the reel shaft 52, 53 at a portion that abuts the reel shaft 52,53. As a result, the top 52a of the reel shaft 52,53
, 53iL, and the wobbling of the holder 32 can be reliably suppressed.

Protective equipment according to the invention thus 11,71.81.91
The holder 32 can be reliably held in an elevated state, and damage to the cassette deck 61 during transportation can be prevented.

In addition, it is possible to put on and take off the protective equipment 1.
1, 71, 81, and 91 is attached, it is naturally possible to prevent insertion of the cassette half.

Effects of the Invention As described above, according to the present invention, when the protector is attached to the cassette deck, the cassette half is removed by the claws of the protector body and the abutting pieces that are RF-energized by the reversing flaps. By suppressing the wobbling in the insertion direction, and by bringing the top surface of the main body into contact with the holder and the bottom surface into contact with the two reel shafts, the wobbling in the direction crossing the insertion direction is suppressed. The holder of the elevator R1m of the cassette deck can be held securely without rattling, and damage to the elevator mechanism during transportation of the cassette deck can be reliably prevented. Further, the protective device can be easily attached and removed, and the protrusion can reliably prevent the protective device from getting stuck in the insertion opening when the protective device is attached.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a protective device 11 according to an embodiment of the present invention, and FIG.
The figure is a perspective view of the protective equipment 11 seen from the bottom, No. 3121 is a plan view of the protective equipment 11, No. 4121 is a bottom view thereof, FIG. 5 is a side view thereof, FIG. 6 is a front view thereof, and No. 7111 is its The rear view, Figure 8, is the cassette deck elevator machine TJ13.
FIG. 9 is a simplified perspective view of 1. Cross-sectional view showing the state in which L11 is attached to the cassette deck 61, No. 10
The figure is a perspective view of a protective device 71 according to another embodiment of the present invention.
The figure is a perspective view of yet another embodiment of the masterpiece 81 of the present invention.
FIG. 12 is a front view of the vicinity of the insertion port 62 of the cassette deck 61, FIG. 13 is a perspective view of a protector 91 according to another embodiment of the present invention, seen from the bottom, and FIG. 14 is a perspective view of the prior art. . tt 71.81.91--@protective equipment, 12. B29
2... Main body, 13... Flange, 14... Locking claw, 20... Base end portion, 26.72... Operating portion, 30...
...Guide protrusion, 31...Elevator mechanism, 32...
Holder, 43... Detection piece, 44... Contact piece, 46.
...Guide member, 47...Reversing spring, 51...Magnetic head, 52.53 Reel shaft, 61...Cassette deck, 62...Insertion slot, 63...Front plate, 65.93.
...Bottom surface, 66...Top surface, 94...Protrusion

Claims (1)

[Claims] A transport protector that prevents rattling in the elevator mechanism of a cassette deck that raises/lowers a recording medium, the device being a transport protector that prevents the rattling of an elevator mechanism of a cassette deck that raises/lowers a recording medium, and which includes a main body to be inserted; a protrusion that abuts the periphery of the insertion opening from the front side of the front plate; and a claw that engages the periphery of the insertion opening from the back side of the front plate; When the main body is raised, the upper surface is in contact with the elevator mechanism, the lower surface is in contact with the tops of the two reel shafts in the cassette deck, and the length in the insertion direction is in the direction of ejecting the main body. A protective device for transporting a cassette deck, characterized in that the protection device is formed to have a length that makes contact with an abutment piece that discharges the main body by the spring force within the range of displacement generated by the spring force of the reversal spring.