JPS6243374Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a lever operating device used for unlocking the cassette storage section of a video tape recorder, etc. The lever can be operated with a small force and is easy to assemble. It is an object of the present invention to provide a lever operation device that allows a push button to be moved forward and backward smoothly without shaking.

1 and 2 show a conventional lever operation device for unlocking the cassette storage section of a video tape recorder, in which a push button 2 is attached to the tip of a sliding fitting 1, and a push button 2 is attached to a front panel 3. A coil spring 5 is installed between the metal fitting 4 and the front end of the sliding metal fitting 1.
is attached to urge the sliding fitting 1 toward the front panel 3. The sliding metal fitting 1 is engaged with another metal fitting 6 to prevent the sliding metal fitting 1 from slipping out to the left. A lever 7 for unlocking the cassette storage portion is in contact with the sliding fitting 1. This lever 7 is biased toward the push button 2 by another spring.

The push button 2 is pressed in order to push the operating lever 7, and a force from the coil spring 5 and a force from the operating lever 7 are applied to the push button 2. Therefore, it is necessary to press the pushbutton with considerable force. In addition, in terms of structure, a metal fitting 4 for supporting the sliding metal fitting 1 and regulating the position of the coil spring 5, and a metal fitting 6 as a stopper for the sliding metal fitting 1 are required, making it complicated and requiring time and effort to assemble. There was a drawback that it was necessary.

In view of the above-mentioned conventional problems, the present invention aims to provide a device that can operate a lever with a small force, is easy to assemble, and can smoothly advance and retreat a push button and a sliding metal fitting. An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 3 and 4, a holding plate 9 having a U-shaped cross section is fixed to the front panel 8 with screws 10. As shown in FIGS. A sliding metal fitting 13 is inserted into the slits 11 and 12 provided in this holding plate 9. A punched groove is provided in the sliding fitting 13, and a protruding piece 14 is provided from the rear end. A coil spring 15 is provided so as to surround this protrusion piece 14, and this coil spring 1
One end of the slide fitting 5 contacts the rear end of the sliding metal fitting 13, and the other end contacts the retaining plate 9, urging the sliding metal fitting 13 in the opposite direction to the front panel 8, that is, backward. A push button 16 is attached to the front end of the sliding fitting 13. The sliding fitting 13 is further provided with a through hole 17, into which a lever 18 is inserted in a direction substantially perpendicular to the sliding fitting 13. This lever 18 is used to unlock the cassette storage section of the video tape recorder, and is biased by a spring so that its tip is directed toward the push button 16. If the force of this spring and the force of the coil spring 15 are properly set, that is, if the force of the coil spring 15 is made slightly weaker than the force of the lever 18, the lever 18 will move a little to the left, and the coil spring will move slightly. The push button 16 stops at a position slightly protruding from the front plate 8 due to the balance between the force that causes the slide fitting 13 to return to the right as the slide member 15 contracts and the force that moves the lever 18 to the left.

According to this configuration, by simply pressing the pushbutton 16 slightly, the sliding fitting 13 is moved back and the lever 18 is moved back.
can be pushed in to easily unlock the cassette storage section. In addition, sliding metal fitting 1
3 and the push button 16 are not urged outward (in the direction in which the front panel 8 is located) by the force of the two springs, so there is no need for a metal fitting as a stopper, which was required in the past. It is sufficient to simply provide a stopper protrusion.
Therefore, the number of parts can be reduced, and the assembly involves inserting the sliding metal fittings 13 into the slits 11 and 12 of the holding plate 9, attaching the push button 16 to the tip of the sliding metal fitting 13, and attaching the push button 16 to the front panel 8. This can be easily done by simply screwing the retaining plate 9 to the front panel 8 so that it protrudes from the opening. Furthermore, since the push button 16 and the sliding metal fitting 13 are supported at three points: the front panel 8 and the holding plate 9,
This has the advantage that the push button 16 and the sliding metal fitting 13 can be moved forward and backward smoothly without rattling.

As described above, according to the present invention, the sliding metal fittings are inserted into the slits provided in the opposing plate parts of the U-shaped holding plate, and the sliding metal fittings are inserted between the holding plate and the sliding metal fittings. A coil spring is provided to bias the rearward direction.
Insert the lever into the through hole of the sliding metal fitting in a direction approximately perpendicular to the sliding metal fitting, and use the lever to which a biasing force slightly larger than the urging force of the coil spring is applied by the spring to tighten the sliding metal fitting. The lever is biased toward the front, in the direction where the front panel is located, and a push button is attached to the tip of the sliding metal fitting, and the push button is inserted into the opening in the front panel to operate the lever with a small pressing force. In terms of configuration and assembly, the number of parts is reduced compared to conventional models, making assembly easier.Furthermore, the pushbutton and sliding metal fittings are supported at three points: the front panel and the holding plate. Because of this, the push button and sliding metal fittings can be smoothly moved forward and backward without rattling.

[Brief explanation of the drawing]

1 and 2 are a cross-sectional plan view and a cross-sectional side view of a conventional lever operating device, respectively, and FIG.
FIG. 4 is an exploded perspective view and a sectional side view of a lever operating device according to an embodiment of the present invention. 9... Holding plate, 11, 12... Slit, 13
...Sliding metal fitting, 15...Coil spring, 16...Push button, 17...Through hole, 18...Lever.

Claims (1)

[Scope of utility model registration request] A holding plate that is U-shaped and has slits in each of its opposing plate parts and is fixed to the front panel with screws, a sliding fitting that is inserted through the two slits of this holding plate, and a sliding fitting that is inserted into the two slits of the holding plate. a coil spring installed so as to surround the provided protruding piece, located between the sliding metal fitting and the holding plate, and urging the sliding metal fitting to move rearward; and a through hole in the sliding metal fitting. a lever that is inserted in a direction substantially perpendicular to the sliding fitting and applies a biasing force slightly greater than the urging force of the coil spring to urge the sliding fitting forward in the direction in which the front panel is located; and a push button attached to the tip of the sliding metal fitting and inserted into the opening in the front panel.