JPH05217350A - Front panel device - Google Patents

Abstract

PURPOSE:To improve an opening operation feeling by inserting a leaf spring to the hook part inside plane of a door switch unit, and warping the leaf spring by the projection of a supporting shaft when a door is opened/closed. CONSTITUTION:A C-shape leaf spring 6 is inserted into the internal plane of the hook part 5b of the door switch unit 1 mounted on a front panel 2, and one or more such parts are provided. Also, the projections 2b, 2c are formed at the supporting shaft 2a, and they are formed so as to be abutted with the inclination parts 6a, 6b of the flat spring 6. By employing such constitution, the internal plane of the spring is abutted with the outside shaft circumference protrusive parts 2b, 2c from a point where the opening angle of the door switch unit 1 passes 45 deg., and a load is supplied until it arrives at an opening angle 90 deg., which functions as a brake. Thereby, it is possible to obtain a smooth opening operation feeling as a whole for the door switch unit 1 interlocking with a conventional oil damper mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper for opening and closing a door switch unit used in video tape recorders, various audio equipments, various OA equipments and the like.
The present invention relates to a front panel device that is related to a mechanism and contributes to improving a feeling of movement.

[0002]

2. Description of the Related Art Conventionally, a damper mechanism device for opening and closing a door switch unit often relies on only an oil damper mechanism regardless of whether the door switch unit is heavy or light. At the end of the movement, it was heavy, so it bounced all the way out, and it did not feel good.

A related device of this type is disclosed in Japanese Utility Model Laid-Open No. 62-40880.

[0004]

SUMMARY OF THE INVENTION The prior art described above provides a smooth open / close operation feeling of a door switch unit having a thickness (20 mm or more) and a weight (500 gr or more) of 400 mm or more, which is the same as the entire width of the front panel. In order to do so, the oil damper mechanism alone or the brake mechanism using the plastic elastic force of the bearing portion cannot prevent the bouncing at the end of the opening operation of the door switch unit, resulting in a problem of reducing the commercial value.

The present invention has been made in view of the above points,
It is an object of the present invention to provide a front panel device such as a video tape recorder which contributes to the improvement of the high-quality operation feeling that must be accepted by customers.

[0006]

In order to achieve the above object, a front panel device having a door switch unit according to the present invention has a C-shape at least at one or more bearing hook portions serving as a support shaft of the door switch unit. -Shaped leaf spring is inserted, and projections are provided at two locations on the shaft outer circumference integrally formed with the front panel, which is the shaft, and from the point where the door switch unit opening angle exceeds 45 °, the inner surface of the C-shaped leaf spring and the shaft outer circumference. The two projections are in contact with each other and the load is applied until the opening angle reaches 90 °. Further, the other support shaft portion is provided with an oil damper mechanism so that the door switch unit can be smoothly opened as a whole.

[0007]

The door switch unit pivotally supported by the front panel is held in a closed state by the two pairs of magnet pins and the magnetic latch, and the door switch unit is opened for the button operation arranged on the inner surface of the door switch unit. When the magnetic force of the door switch unit is released by the push button or fingers, the door switch unit has a viscous feel with its one support shaft part interlocking with the oil damper mechanism.
° It is designed to open, but depending on the weight and weight balance of the door switch unit, it is not possible to suppress the bounce at the end of opening with the oil damper mechanism alone. A C-shaped leaf spring and a shaft projection are not in contact with each other in the initial stage of the rotation of the door switch unit by arranging a leaf spring having a character shape and further providing two protrusions on the outer circumference of the circular shaft integrated with the front panel. When the door switch unit opens 45 °, the C-shaped leaf spring of the support shaft hook engages with the shaft protrusion to eliminate the bound of the opened door switch unit due to the load of the elastic force.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to one embodiment shown in FIGS.

FIG. 1 is a cross-sectional view of one support shaft portion of the door switch unit 1 when the door switch unit is in a closed state. The door switch unit 1 has a hook portion 5b integrally formed,
The leaf spring 6 forming the inclined portions 6a and 6b is attached to the inner surface of the hook portion 5b. The leaf spring 6 of the hook portion 5b is engaged with the support shaft 2a by the front panel 2 and the projections 2b, 2c formed by molding integrally with the leaf spring 6 as the support shaft. The rotation fulcrum of and is constructed as one of a plurality.

FIG. 2 is a sectional view of the same one support shaft portion when the door switch unit 1 is in the 45 ° open state.
From this point, the protrusion 2c of the support shaft 2a and the inclined portion 6 of the leaf spring 6
When the door switch unit 1 is opened, the spring pressure of the leaf spring 6 acts as a brake on the opening operation of the door switch unit 1, and when the door switch unit 1 is opened without relying only on the oil damper mechanism described later. Bounce that does not feel good can be prevented.

FIG. 3 is a sectional view of the same one support shaft portion when the door switch unit 1 is completely opened. The distance B from the center of the support shaft 2a to the tip of the protrusion 2c and the center of the support shaft 2a and the leaf spring. The difference in the distance A to the top of the inclined portion 6a of 6 serves as the amount of deflection of the leaf spring 6, which acts as a load when the door switch unit 1 rotates, and serves as a brake at the end of the opening operation.

FIG. 4 is a simplified perspective view of a main portion of the door switch unit of the video tape recorder in an open state.
Magnet latches 3a and 3b are incorporated in the front panel 2. The door switch unit 1 is provided with a plurality of various operation buttons, and magnet hens 4a and 4b are incorporated in the front panel 2 at positions facing the magnet latches 3a and 3b. Further, the door switch unit 1 has a plurality of hook portions 5a to 5b to form a fulcrum, and is rotatable by engaging with a support shaft 2a integrally formed with the front panel 2 as shown in the sectional view of FIG. The door switch unit 1 is configured to be pivotally supported as described above, and the door switch unit 1 is attracted to the front panel 2 to maintain the closed state.

Although not shown in the embodiment, various operation buttons of the door switch unit 1 are electrically connected to a circuit board which is a circuit constituent element through a cable and a connector.

FIG. 5 is an inner view of the front panel 2 and is a perspective view showing a state in which an oil damper mechanism is formed at one fulcrum shaft support portion of the front panel 2, and is a magnet switch 3a, 3b of the front panel 2 and a door switch. The door switch unit 1 and the oil damper mechanism are interlocked with each other so that the door switch unit 1 slowly opens when the magnets 4a and 4b of the unit 1 are separated.

In the embodiment having such a construction, the opening operation of the door switch unit 1 can be prevented from bouncing at the end of the opening operation, and the opening image of the door switch unit for improving the touch image can be obtained, and the commercial value is obtained. It is possible to provide products that can be accepted by customers without damage.

[0016]

As described above, according to the present invention, it is possible to enhance the commercial value as a device including a front panel and a door switch unit, which are important as an operation feeling image of home electric appliances, and to open and close the door switch unit. It is possible to improve the feeling of opening, especially in operation, and to achieve a remarkable effect such as being simple and inexpensive.

[Brief description of drawings]

FIG. 1 is a sectional view of a support shaft portion in a closed state of a door switch unit according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the support shaft portion in the intermediate state of opening.

FIG. 3 is a sectional view of the support shaft portion in the final open state.

FIG. 4 is a simplified perspective view of a main part of a door switch unit of a video tape recorder having a door switch unit in an open state.

FIG. 5 is an internal perspective view showing an oil damper mechanism at a fulcrum shaft supporting portion of a front panel device having a door switch unit.

[Explanation of symbols]

1 ... Door switch unit, 2 ... Front panel,
2a ... Support shaft, 2b, 2c ... Protrusion, 3a, 3b ... Magnet latch, 4a, 4b ... Magnet hen, 5a, 5
b, 5c, 5d ... Hook part, 6 ... Leaf spring, 6a, 6b
... leaf spring inclined part, 7 ... oil damper mechanism.

Claims (1)

[Claims] 1. A door switch unit having various operation buttons arranged on a front panel of a video tape recorder is pivotally supported by a plurality of fulcrums, and the operation feeling of opening and closing the door switch unit is smooth. In order to ensure that the door switch unit is equipped with an oil damper mechanism, the magnet switch is located inside the door switch unit at the left and right positions to store and hold the door switch unit from the open state, and the front panel side has a magnet hook. In the configuration of the door switch unit opening / closing operation device that holds two magnetic latches having the same magnetic force as described above and is held by the magnetic force, an oil damper mechanism is provided so that the opening operation feeling of the door switch unit when opened is smooth. In addition, attach a hook-shaped leaf spring to the other fulcrum hook part of the door switch unit. Further, protrusions are provided in two directions of a support shaft portion integrally formed with the front panel that engages with the leaf spring, and the leaf spring and the support shaft protrusion engage with each other only in the latter half of the opening operation of the door switch unit. A front panel device characterized by acting as a brake when opening.