JPS6322710Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a cord storage device for a unit case, in which a cord is connected and stored in a drawer type in a housing, and can be pushed out from the front of the housing and taken out as needed. For example, but not limited to, a unit case such as a radio cassette player (a radio cassette player with a built-in tape recorder), such as an electronic keyboard instrument connected to the cassette player by a cord, is stored in a drawer style, and the unit case is played and recorded. It can be used to stretch or shorten the cord when taking it out for storage or storing it again.

The present invention will be explained below with reference to the drawings.
Reference numeral 2 indicates the housing of the above-mentioned radio cassette player, and 2 indicates a unit case which is an electronic keyboard instrument that can be stored by being pushed into the housing in a drawer manner, or taken out by being pushed out.

The housing 1 has left and right partition walls 3, 3 in parallel therein, which partition the housing part 1a of the unit case.
The front side of the storage section 1a is open, and a door 1' is pivotally mounted thereto so that it can be raised and lowered, so that the opened front side can be closed by raising the door 1'.

The left and right farm walls 3 have a window hole 3' extending over almost the entire length in the upper half, and the lower edge of the window hole is formed into a rail 4 with a T-shaped cross section, protruding from the opposing inner surfaces of the left and right farm walls. The inward protruding portions 4' of the rails 4 fit into horizontal grooves 5, 5 provided on both left and right sides of the unit case, and support the unit case so as to be slightly lifted from the bottom of the housing and slidable in the front and rear directions. Note that the front end 5' of the horizontal groove 5 is closed, and when the unit case is pushed into the housing part 1a as far as it can go, the front end 5' comes into contact with the front end of the inwardly protruding part 4' of the rail, and the unit case is in a stored state where it cannot be pushed in any further. (1-dot chain line in Figures 1 and 2).

There is an L-shaped locking recess 6 at the rear of the lower surface of the unit case, which opens into the rear surface of the case at a cam portion 6'. A locking plate 7 is attached to the rear part of the bottom plate of the housing so as to be slidable in the left and right direction, and a locking plate 7 is attached to the rear part of the bottom plate of the housing.
A protrusion 7a is provided at one end of the engagement plate so that the engagement plate can be pulled in one direction and inserted into the engagement recess.
Therefore, when the unit case is pushed in as described above, the cam portion 6' of the locking recess will close just before the unit case enters the retracted state.
contacts the protrusion 7a and moves the engagement plate to the left or right against the spring 7', bringing the protrusion 7a into the locking recess 6. For this reason, the protrusion 7a is removed by subsequent pressing.
enters the locking recess, and when it reaches the depths of the locking recess, the engaging plate 7 moves back to its original state under the pull of the spring 7', preventing the unit from moving forward and keeping it in the retracted state. .

The other end of the engagement plate passes through a notch provided at the lower end of one of the awning walls and projects into the opposing space 8 between the housing and the side wall of the housing. A release lever 9 whose operating end protrudes from the front surface of the housing is held at the lower part of the outer surface of the farm wall so as to be movable in the front and rear direction, and is pulled forward by a spring 9'. 7 is engaged with a diagonal cam hole 7b provided at the other end. Therefore, when the release lever 9 is pushed in against the spring 9' (arrow in FIG. 1), the inner end of the release lever slides into the cam hole 7b and the engagement plate 7
is moved against the spring 7', and the protrusion 7a comes out from the horizontal portion at the back of the locking recess, thereby releasing the engagement plate from holding the unit case.

A slider 10 rides on each rail 4 of the left and right partition walls 3 at a position deeper than the unit case 2 so as to be movable in the front and rear directions. Each slider 10 can come into contact with the upper part of the rear surface of the unit case, and is pulled forward by being connected to a traction spring 11 having one end attached to the front end of the outer surface of the left and right field walls, respectively, so that the slider 10 can push the unit case into the retracted state. When the sliders 10, 10 move backward together on the rail and extend the traction springs 11, respectively, and when the release lever 9 is pushed in as described above to release the engagement plate from holding the unit case, each traction spring With the contraction force of 11, the slider 10 pushes the unit case from behind, moves forward on the rail, and pushes the unit case out from the front of the housing. Of course, if the door 1' closes the front of the storage section 1a, the release lever should be pushed in after opening it.

Rack gear 1 is installed at the bottom of the inner surface of the left and right farm walls 3, 3.
2 are provided in the front and back direction. The rear end of a damper 13 is swingably suspended from each slider 10 so as to hang down along the inner surface of the farm wall, and a gear 14 whose rotation is braked by the damper is attached to a rack gear 1.
2 to engage diagonally. The damper 13 has a case 13a containing oil (grease) and an arm 13b projecting backward from the case.The arm 13b is held by a holder 15, and the shaft 15' at the upper end of the holder is connected to a slot provided in the slider 10. An arcuate tube 10 having
Snap it into a and hang it so that it can swing forward and downward. A shaft of a rotating wheel whose rotation is braked by oil in the case protrudes from the side surface of the case 16a, and the gear 14 is fixed to this shaft.

Therefore, in this embodiment, when the unit case is pushed into the housing, each slider 10 is pushed by the unit case and moves backward on the rail 4.
The front end of the damper 13 to which the gear 14 is attached is free, and since the rotation of the gear 14 is braked by the damper 13, when the slider moves backward, the gear is dragged and agitated on the rack gear 12 without rotating. Therefore, the unit case can be pushed in only with the force that overcomes the traction spring 11.
The gear 14 whose rotation is braked by the damper 13 can be lightened by the fact that the force for engaging the rack gear and rotating it is unnecessary. On the contrary, when the release lever is pushed in to release the holding of the unit case from the engagement plate, and the slider 10 is pushed from behind by the contraction force of the traction spring 11 to push out the unit case, the gear 14 is pressed.
is pressed against the rack gear 12 and must rotate against the braking force of the damper 13, so the traction force of the traction spring 11 is buffered and the unit case is pushed out quietly at a low speed. Although the rail 4 guides both the unit case and the slider, separate rails may be provided for the unit case and the slider.

Now, this electronic keyboard instrument, which is a unit case, is connected to the main body of the radio cassette player by a cord 16 in order to play and output the sound from the radio cassette speaker, or to record it on a cassette tape with a recording device. The present invention handles the cord 16 so that it does not become entangled when the unit case is stored in the housing or pushed out from the front of the housing as described above. The present invention is not limited to a radio cassette player as in the embodiment and an electronic keyboard instrument that is extrudably housed in its housing.

Since the housing 1 has a space for positioning the sliders 10, 10 behind the rear end of the unit case in the stored state, there are two walls 17, 17 that stand up from the bottom plate at the back of the housing part 1a, and a cord storage part is located between them. 17'. And storage part 1
A pulley 18 for hanging the cord 16 in a folded manner is installed in the inside of the housing 7' and is pulled by a spring 18' at the back of the storage compartment.
A turning pulley 19 for turning the cord 16 is arranged at the entrance of the storage section. The cord 16 coming from the main body of the radio cassette player located above the housing is inserted into the frame 19' which also serves as a fitting for the turning pulley 19, and is then guided into the cord storage part 17' and connected to the pulley 1.
8, fold it back, hang it on the turning pulley 19, and bring it forward out of the storage section 17', so that it goes to the rear end of the unit case. As a result, when the unit case is in the stored state, the pulley 18 uses the spring 18' to pull the cord to the back of the storage part to eliminate slack in the cord, so that the cord does not interfere with pushing in the unit case. When the unit case is pushed out, the pulley 18 resists the spring 18'.
Move the cord near the entrance of the storage section and stretch the cord. Therefore, since the length of the cord 16 can be made redundant by twice the distance that the pulley 18 moves in the housing section 17', it is possible to extend the unit case outside the front of the housing while the cord is connected, and the cord Since the expansion and contraction of the cord is guided by pulleys 18 and 19, the movement of the cord is extremely smooth.

If the unit case is to be used at a certain distance from the outside of the front of the housing, attach the connector 16' to the end of the cord 16, and insert the connector into the plug on the rear of the unit case. 16' may be removed from the plug, and the connector 16' and the plug may be connected using an extension cord. At this time, if you remove the connector from the plug in the unit case and release your hand, the cord will connect to pulley 1.
8 is drawn into the housing by a spring 18' pulling the connector 8, and the connector goes deep inside the housing, making it difficult to pull out the connector to connect it to an extension cord.

Therefore, in this case, a cord guide 20 having an opening at the free end through which the cord passes but not the connector is pivotally mounted in the space at the back of the housing, and the cord guide 20 is biased by a spring 20' as shown in FIG. With the free end facing toward the front of the housing as shown by the arrow, the cord is passed through the opening 20a through the cut 21. When the unit case is pushed into the housing and stored, this cord guide is pushed by the rear surface of the unit case and turns against the spring 20'; Turn and open the opening 20a
Since the connector faces the front, even if the connector is removed from the unit case and the cord 16 is pulled in, once the connector is caught in the opening 20a, the cord cannot be pulled in any further, so the connector can be pulled out again from the housing and easily connected to an extension cord. .

As described above, according to the present invention, when the unit case is stored in the housing, the cord whose tip end is connected to the unit case is looped around a pulley pulled by a spring so that there is no slack in the cord. When the cord is pushed out from the front of the housing, the cord is stretched, but the movement of the cord can be smoothly guided by the deflection pulley.

The housing 1 of this embodiment has an open top surface except for the strip plate 22 attached to the front end of the top surface. Several mounting columns 23... stand up from the bottom plate, and the cabinet of the radio cassette player is fixed on top of them to cover the top surface.Of course, the housing and unit case are part of the cabinet of the radio cassette player.
It is not limited to electronic keyboard instruments.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a partially omitted plan view, Fig. 2 is a longitudinal side view of the same, Fig. 3 is a longitudinal sectional front view of the main part, and Fig. 4 is a partially omitted plan view. This is a partial exploded perspective view. In the figure, 1 is the housing, 2 is the unit case, 16 is the cord, 18 is the pulley, 1
8' is a spring that pulls the pulley, and 19 is a turning pulley.

Claims (1)

[Scope of Claim for Utility Model Registration] Consisting of a housing and a unit case that is stored in the housing in a drawer manner and can be taken out from the front of the housing, and a cord that has its tip connected to the unit case is inserted into the housing. This cord storage device is provided with a pulley pulled by a spring that hangs in a folded manner, and a turning pulley that hangs the unit case side of the cord from the part of the cord that hangs on the pulley and directs the cord toward the unit case.