JPH0230863Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an opening/closing mechanism for a door that closes an operating section of a TV receiver or the like.

(B) Prior Art A door opening/closing mechanism for closing an operating section in which adjustment knobs are integrated in a TV receiver or the like is disclosed in, for example, Japanese Utility Model Publication No. 58-4372. According to this publication, the door is constructed so as to protrude outward from the cabinet when the door is in the open state. As a result, the door got in the way when operating the knobs, resulting in very poor operability. Furthermore, there was a risk that the door would be damaged by external impact.

(c) Problems to be solved by the invention This invention solves the drawbacks of the conventional example.
When the door is in the open state, it does not interfere with the operation of the operating section, there is no risk of the door being damaged by external impact, and the operating feeling when opening and closing the door is improved.

(d) Means for solving the problem The present invention has first and second guided parts arranged on the side wall of the door, and arranged on the side of the cabinet recess.
a first guide for guiding the first guided portion in a first direction;
a support member having a second guide section that guides the guide section and the second guided section in a second direction different from the first direction; and a support member that urges the second guided section in the second direction. It consists of a means to

(E) Function The door according to the present invention can be rotated in a controlled manner around a point of interest between a first position where the cabinet recess is closed and a second position where the door is accommodated in the recess.

(f) Embodiment An embodiment in which the present invention is applied to a TV receiver will be described below with reference to the drawings.

Fig. 1 is an exploded perspective view of the mechanism of this embodiment, Fig. 2 is a perspective view of the mechanism in the closed state, and Fig. 3 is a perspective view of the mechanism in the open state. An operating section 2 having a plurality of operating knobs is disposed within this recess 1a.

Reference numeral 3 denotes a door, and support parts 3a, 3a are formed on both sides of the door, and a recess 3b and guide holes 3c, 3c are further formed in the support parts, respectively. 4,4
are levers that can be fitted into the recessed portions, and have first and second support shafts 4 at both ends thereof passing through the base 4a.
b and 4c are provided, and each support shaft can be fitted into the guide hole. Further, first and second guide rollers 4d and 4e are attached to the first and second support shafts.

Reference numerals 5 and 5 denote support plates that are attached to the sides of the recess and rotatably support the door. This support plate includes a first arc-shaped long hole 5a into which the first guide roller 4d loosely fits, and a second guide roller 4e.
A second elongated hole 5b is formed into which the second elongated hole 5b is loosely fitted.

Reference numeral 6 denotes a torsion spring pivotally supported on the outside of the support plate, one end of which engages with the support plate, and the other end of which engages with the second guide roller 4e. The support plate, lever, and torsion spring constitute a toggle mechanism.

Next, the assembly of the mechanism of this embodiment will be explained.

First, the first and second elongated holes 5a and 5b of the support plate 5
the first and second guide rollers 4 of the lever 4, respectively.
Fit d and 4e loosely. Then, the torsion spring 6 is pivotally supported on the support plate, one end of the torsion spring is engaged with the support plate, and the other end is engaged with the second guide roller. In this state, the support plate 5 and the lever 4 are integrated. Then, one of the pair of support plates is fixed from the back side of the cabinet 1 to the side of the recess 1a with screws (not shown). In this state, the support plate becomes a side wall of the recess, and the first and second
The support shafts 4b and 4c protrude slightly inward.

Next, the door 3 is attached from the front of the cabinet. That is, the recess 3 of one support part 3a of the door 3
The base 4a and the first and second support shafts 4b and 4c of the lever are fitted into the guide holes 3c and 3c, respectively. Then, the other support plate is fixed with screws from the back surface of the cabinet 1 so that the guide holes 3c and 3c fit into the first and second support shafts 4b and 4c.

The door 3 installed as described above is in the closed state,
As shown in Figure 2, the recess 1a is closed and the third
As shown in the figure, the door 3 is housed in the recess 1a.

Next, the opening/closing operation of the door will be described in detail according to FIG. 4, A, B, and C. As shown in FIG. 4A, when the door 3 is in the closed state, the second guide roller 4e is urged upward by the force of the torsion spring 6, and the first guide roller 4d is pushed upward through the first elongated hole 5a. It is biased toward the left end. Therefore, the door 3 is biased in the closing direction.

Next, when opening this door, when the door 3 is rotated clockwise against the bias of the torsion spring 6, as shown in FIG. 4B, the first guide roller 4d
moves rightward along the first elongated hole 5a, and the second guide roller 4e moves downward along the second elongated hole 5b. Therefore, the door gradually moves into the recess 1a while rotating.

Then, in the state shown in FIG. 4B, the second guide roller 4
e reaches the lowest point (the so-called consideration point), and when the first guide roller 4d is moved slightly to the right beyond this point, the torsion spring 6 is biased, as shown in FIG. 4C. state, that is, the door 3 is moved to the open state without applying any external force. and door 3
The open state is maintained by the bias of the front hole torsion spring. In this state, the door 3 is completely housed in the recess 1a. Further, the door is closed by an operation completely opposite to that described above.

That is, the door 3 is rotated moderately around the consideration point by the toggle mechanism.

Therefore, to open and close the door 3, simply move the door 3 by hand to a position beyond the above-mentioned consideration point, and from then on the door 3 moves as if being sucked in, so the operation feeling is extremely good.

As shown in FIG. 1, the operation part 2 in the recess 1a protrudes slightly forward on the right side than on the left side, so in the above embodiment, when the door 3 is opened and closed, the first and second supports are The shafts 4b and 4c may become twisted. In this case, as shown in FIG. 5, the first and second support shafts 4b and 4c are not coaxial with the first and second guide rollers 4d and 4e, but are arranged with their positions slightly shifted from each other. good.

(g) Effects of the invention As mentioned above, according to the invention, since the torge mechanism is used so that the door rotates moderately around the point of consideration, the operating feeling when opening and closing the door is extremely good. Moreover, the open state and the closed state can be stably maintained.

Furthermore, since the door is stored substantially within the recess in the open state, it does not interfere with the operation of the operating section, and there is no risk of damage due to external force.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the mechanism of this embodiment, Fig. 2 is a perspective view of the same in the closed state, Fig. 3 is a perspective view of the same in the open state,
4A, 4B, and 4C are explanatory diagrams of the same operation, and FIG. 5 is a side sectional view of another embodiment. 1... Cabinet, 1a... Recess, 2... Operation section, 3... Door, 4, 4... Lever, 5, 5...
Support plate, 6, 6... Torsion spring.

Claims (1)

[Claims for Utility Model Registration] A mechanism for opening and closing a door for concealing an operating part located in a recess of a cabinet, comprising: first and second guided parts disposed on side walls of the door; an arc-shaped first guide portion disposed on a side portion and guiding the first guided portion;
a support member having a second guide part located on the opposite side of the guide part from the arc center of the first guide part and linearly guides the second guided part; and the second guided part and a biasing means for biasing the door toward the first guide portion, and the door carefully moves between a first position in which the recess is closed and a second position in which the door is accommodated in the recess. A door opening/closing mechanism characterized by moderate rotation around a point.