JPH0319256Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields The present invention relates to an operating unit opening/closing device for electronic equipment.

(b) Conventional technology As electronic devices such as VTRs become smaller,
In order to make effective use of the front panel, and to prevent erroneous operation, operation buttons that are rarely used are usually not exposed on the front panel, and an open/close operation unit is used so that they can be operated only when the machine is being operated. There is.
As an example of such a switchgear, the Utility Application No. 58-196413
There is a number. In the prior art, the operation part is integrated with the opening/closing lid which is biased to rotate by a coil spring to open and close, and in the open state, the coil spring attached to the opening/closing lid is biased in the opening direction. In order to prevent the operating section from accidentally shifting to the closed state due to strong pressing of the operating button on the operating surface of the operating section, a locking device dedicated to maintaining the open state by manual operation is provided. It is being

(c) Problems to be solved by the invention According to the prior art, since the operating section is always biased in the opening direction, when shifting from the open state to the closed state, the lock for holding the open state is activated at once. After canceling the
The operation part must be rotated against the biasing force of the coil spring until the lock for maintaining the closed state is fully engaged, resulting in extremely poor operability.

(d) Means for solving the problem The present invention is an opening/closing device for an operating section, and has a first support section provided on the side of the operating section and a second support section that moves in conjunction with the opening/closing auxiliary section. It is characterized by a coil spring with attached ends.

(E) Function Since the present invention is configured as described above, when the operation section shifts to the open state or the closed state, the second support section moves in conjunction with the opening/closing assisting section, thereby causing the coil spring to reverse. Then, the operating section reaches the open or closed state.

(F) Embodiment A first embodiment of the present invention will be described below with reference to the drawings.

1 to 9 relate to the first embodiment of the present invention,
Figure 1 is an exploded perspective view of the operating section and chassis, Figure 2
The figure is a perspective view of the main parts of the slide lever part, Figure 3 is an exploded perspective view of the lid and front panel, Figure 4 is a perspective view of the slide member, and Figures 5 and 6 are when the slide member is attached. The main part sectional view and front view, and FIGS. 7 to 9 are diagrams explaining the state of the coil spring when the operating section transitions from the closed state to the open state, when it is in the open state, and when it changes from the open state to the closed state. It is.

1 is an operation unit, and there are multiple operation buttons 1 on the front.
a, 1a... are arranged, and through holes 1b, 1 are provided on both sides.
In particular, a first protrusion 2 and a second protrusion (first support portion) 3 are integrally molded on the right side surface, and a protrusion piece 1c is integrally molded on the inner surface.

The chassis 4 has an operation part storage opening 5, and guide angle parts 7, 7 having first support shafts 6, 6 at their tips protrude from the storage opening 5. Furthermore, an L-shaped projecting piece 8 is integrally molded on the side of the storage opening 5.

Reference numeral 9 denotes a slide lever, in which an arm portion 11 having a third projection (second support portion) 10 and a sliding plate 12 are integrated.

The front panel 13 has a first opening 14 into which the operating section 1 is attached, and an auxiliary plate 16 having main shaft parts 15, 15 is provided at the lower edge of the first opening 14. A long hole 17 extending in the vertical direction is provided on the side. Further, cut pieces 27, 27 are formed on the inner surface of the front panel 13.

18 is a lid body, and bearing parts 19, 19, bearing auxiliary parts 20, 20, 20, 20 and locking claws 2 are provided on the back side.
1 and 21 are arranged, and a marking plate 22 is attached to the front side.

23 is a slide member (opening/closing auxiliary part), which includes a U-shaped fitting part 24, a knob 25, and a locking recess 26.
It is integrally molded.

An L-shaped presser plate 28 is formed by the bent pieces 27, 27.
, and insert the slide member 23 into the elongated hole 17.
The knob 25 is loosely fitted from the back side, and the slide member 23 is held between the presser plate 28 and the inner surface of the front panel 13. Further, the bearing parts 19, 19 and the bearing auxiliary parts 20, 20, 20, 20 are connected to the main shaft part 15,
15, and the lid body 18 is rotatably attached to the front panel 13. On the other hand, chassis 4
The sliding plate 12 is engaged with the projecting piece 8 of the operating part 1, and the through holes 16, 16 of the operating part 1 are fitted with the first support shafts 6, 6 so that the coil spring 29 (spring member) can be freely rotated. After attaching one end to the second protrusion 3 and the other end to the third protrusion 10 of the slide lever 9, the front panel 13 is attached to the chassis 4. At the same time, the locking claws 21, 21 are engaged with the protruding piece 1c to integrate the operating portion 1 and the lid body 18. At this time, the main shaft parts 15, 15 and the first support shafts 6, 6 are located coaxially, and the operating part 1 and the lid body 18 can rotate together.

Next, the operation section opening/closing device assembled as described above will be explained.

In the closed state, the slide member 23 is moved as shown in FIG.
As shown in FIG. 6, the first protrusion 2 is located at the lowest end of the elongated hole 17 and engages with the locking recess 26 to lock it in the closed state. Further, in this state, the coil spring 29 is in a state as shown by the solid line in FIG. 7, and the operating portion 1 is always biased in the closing direction.

In the closed state, when the slide knob 25 is pushed upward, the slide lever 9 slides upward via the slide member 23, and the third protrusion 10 moves to the seventh position.
Move upward in the direction of arrow X in the figure. As a result, the coil spring 29 is deformed into the shape shown by the dashed line in FIG. This deformed coil spring 29 causes a force to act in the direction of the arrow Fo on the second protrusion 3 to which one end of the coil spring 29 is attached, and the operation part 1
At the same time as the coil spring 29 is rotated in the opening direction, the coil spring 29 itself also rotates about the third protrusion 10, and both ends of the coil spring 29 rotate around the coil portion 29a, thereby opening the operating section 1 as shown in FIG. state and urge it in the opening direction. At this point, the locking recess 26 and the third protrusion 10 are engaged, and the open state is locked.

When closing the operating portion 1, the knob 25 is strongly pushed down and the slide lever 9 is slid downward. At this time, the pushing force against the second protrusion 3 that locks the closed state is applied in the vertical direction as shown by the dashed line in FIG. Since the second protrusion 3 is located in front of the direction indicated by the one-dot chain line, the second protrusion 3 starts to rotate integrally with the operating part 1 due to the strong pushing force, and the second protrusion 3 and the locking recess 26 The engagement with is released.
On the other hand, the coil spring 29 is deformed as shown by the dashed line in FIG.
Rotate in the closing direction. At this time, coil spring 2
9 itself also rotates about the third protrusion 10, and both ends are reversed around the coil portion 29a. Further, by manually closing the operating section 1, the closed state is reached as shown in FIG. 7. At this time, the locking recess 26 and the first
The protrusion 2 is engaged and the closed state is locked.

Next, a second embodiment will be described with reference to FIGS. 10 to 13. However, the same parts as in the first embodiment are denoted by the same reference numerals and the explanation thereof will be omitted.

The chassis 4 is provided with a protrusion plate 41 having an E-shaped guide groove 40 on the side edge of the operation unit storage opening 5, and one end of which is attached to the second protrusion (first support portion) 3 of the operation unit 1.
The other end of the coil spring 29 attached to the spring roller (second
It is connected to the tip of the support part) 42.

The lid body 18 has a closing lid locking hook 43 at the center of the upper end, and a finger hook 44 (opening/closing auxiliary part) at the upper end.
is integrally molded, and when the lid body 18 and the operating section 1 are integrated, the closing locking hook 43 protrudes from the opening 44 of the operating section 1, and the finger hook 4
4 is configured to face the recess 45 of the front panel 13. In addition, there is a lid opening lock hook 4 in the center of the side surface that becomes the top surface when the operating section 1 is in the open state.
6 is provided.

The state shown in FIG. 12 is the closed state, and in this closed state, the lid body 1 is manually operated via the finger hook 44.
When 8 is pulled in the opening direction, the spring roller 42 to which one end of the coil spring 29 is coupled linearly slides upward in the guide groove 40, while the second protrusion to which the other end of the coil spring 29 is coupled 3 is the operation part 1
The spring roller 42 rotates counterclockwise around the first support shaft 6 together with the guide groove 40 .
By the time the coil spring 29 reaches the uppermost end, both ends of the coil spring 29 are reversed and biased in the opening direction. As shown in FIG. 13, the spring roller 42 is connected to the guide groove 40
When the opening locking hook 46 engages with the engaging piece 47 provided on the inner surface of the front panel 13, the open state is locked and the open state is established.

In addition, the operating part 1 is manually rotated clockwise to disengage the lid opening lock hook 46 and the engagement piece 47, and the spring roller 42 is slid linearly downward in the guide groove 40. When the lid is moved, both ends of the coil spring 29 are reversed and biased in the closing direction, the spring roller 42 reaches the lowest end of the guide groove 40, and the lid locking hook 43 engages with the engagement piece 47. The closed state is locked and becomes the closed state.

(g) Effects of the invention As described above, according to the invention, the coil spring reverses during transition between the two states of the open state and the closed state, so that the operating section moves in the open direction when in the position immediately before the open state and in the closed state. At the immediately preceding position, it is biased to rotate in the closing direction, and the lock for maintaining the open/closed state is automatically engaged by the biasing force, resulting in extremely good operability. In addition, it is possible to make the front panel assembly the final assembly process, which is effective in reducing process defects and has high practical value.

[Brief explanation of the drawing]

1 to 9 relate to the first embodiment of the present invention,
Figure 1 is an exploded perspective view of the operating section and chassis, Figure 2
The figure is a perspective view of the main parts of the slide lever part, Figure 3 is an exploded perspective view of the lid and front panel, Figure 4 is a perspective view of the slide member, and Figures 5 and 6 are when the slide member is attached. Main part sectional view/front view, No. 7
Figures 8 and 9 are diagrams for explaining the state of the coil spring when the operating section is transitioned from the closed state to the open state, when the operating section is in the open state, and when the operating section is transitioned from the open state to the closed state. 10 to 12 relate to the second embodiment, and the 10th
Figure 11 is an exploded perspective view of the operating section and chassis, Figure 11 is an exploded perspective view of the lid and front panel, Figure 12 is an exploded perspective view of the operating unit and chassis.
FIG. 13 is an explanatory diagram showing the state of the coil spring in the closed state and the open state. 1... Operating unit, 3... Second protrusion (first support part),
DESCRIPTION OF SYMBOLS 10... Third protrusion (second support part), 13... Front panel, 18... Lid body, 23... Slide member (opening/closing auxiliary part), 29... Coil spring, 42...
...Spring roller (second support part), 44...
Finger rest part (opening/closing auxiliary part).

Claims (1)

[Scope of utility model registration request] a lid rotatably disposed on a front panel; an operation unit that rotates integrally with the lid;
a first support portion disposed on a side surface of the operating portion; a spring member having one end attached to the first support portion;
It consists of a second support part to which the other end of the spring member is attached, and an opening/closing auxiliary part that moves the second support part, and is interlocked with the opening/closing auxiliary part when the operation part shifts to an open state or a closed state. An operating section opening/closing device characterized in that the operating section is brought into an open state or a closed state by moving the second support section and reversing the spring member.