JPS6041745Y2 - door mechanism - Google Patents

Description

[Detailed description of the invention] The present invention relates to a door mechanism used in a control box of a television receiver, etc. or a cassette loading section of a tape recorder, etc., and the door body can be opened without using any hinge members or locking devices. The purpose is to be able to securely lock and hold the device in both the open position and the closed position.

For example, as shown in FIG. 1, a door 3 that opens and closes with respect to a storage recess 2 for a control box, etc. provided on a front panel 1 of a television receiver has conventionally been opened and closed as shown in FIG. 2 or 3. It was configured.

In other words, in the case shown in FIG. 2, each end of a synthetic resin hinge member 7 is attached to a groove 5 formed in a wall 4 in the storage recess 2 and a hook 6 provided on the lower surface of the end of the door 3. The door 3 is attached by inserting the support arm 10 into the through hole 9 formed in the wall 8 of the storage recess in the case shown in Fig. 3. 11 is inserted rotatably.

In both of these conventional examples, a locking pawl 12 for locking and holding the door 3 in the closed position is integrally molded on the door.

In the conventional example, when opening the door, the door 3 is moved in the direction of the arrow to disengage the locking pawl 12, and then the door 3 is
Since the opening must be opened in the direction of arrow B, the opening operation is in two stages, making it difficult to open.In addition, there are variations in the degree of engagement between the through hole 9 and the support shaft 11, especially in the one shown in Fig. 3. As a result, the door 3 may not be opened and closed smoothly, or the door may not be firmly held in the closed position, causing it to wobble.

Therefore, the present invention has been devised in view of the above points, and one embodiment of the door mechanism of the present invention will be described below with reference to FIGS. 4 to 6.

FIG. 4 is a partially omitted perspective view showing a state in which the door body 15 is removed from the storage recess 14 of the cabinet body 13.

In the figure, the storage recess 14 is formed such that its bottom surface 14a is connected to the side surfaces 14b, 14b and the upper surface 14c of the recess, and a gap 16 is formed between it and the lower surface 14d.

A first bearing portion 17 having a curved recess 14a is provided on the bottom surface 14a of each left and right corner below this recess 14, and a flat surface 18a and a curved surface 18b are provided on the side surfaces 14b of the corner.
, 18b are formed and the second bearing has elasticity, and the portions 18 are each integrally molded.

On the other hand, a support shaft 19 protruding from the back side of the door is integrally molded on each of the left and right ends of the base end of the door body 15, and this support shaft is connected to the first and second bearings between the parts 17 and 18. It is meant to be inserted.

That is, the support shaft 19 has a non-circular cross section so that its lower half 19a is fitted with the first bearing section 17, and its upper half 19b is fitted with the second bearing section 18. There is.

5 and 6 are longitudinal sectional views of the door body 15 attached to the storage recess 14, of which FIG. 5 shows the door when it is closed and FIG. 6 shows the door when it is opened.

That is, when the door is closed, each of the upper and lower sections 19a+ of the support shaft 19
The door body 15 is held in this state by fitting the first and second bearings 19b and 17 and 18, respectively.

When opening the door, when the door body 15 is opened from the state shown in FIG. 5 in the direction of the arrow, as the support shaft 19 rotates, the second bearing 18 is displaced in the direction of the arrow in FIG. 6 against its elasticity. Therefore, opening of the door body 15 is allowed, and in the state after the opening, the second bearing is held between the support shaft 19 by the elasticity of the part 18, and the first and second bearings are held between the parts 17 and 18, so that the door can be opened. Main body 15
will be maintained in this state.

Therefore, according to such a mechanism, when the door is opened, the door body 15
The door can be opened easily by simply applying force in the direction of the arrow in Fig. 5 to Moreover, since the support shaft 19 rotates with the lower half part 19a in surface contact with the curved recess 17a of the first bearing part 17, the opening/closing operation of the door body can be performed. It can be done smoothly.

Further, since the second bearing part 18 has elasticity, when the door body 15 is opened and closed, the support shaft 19 is elastically held by the first bearing part 17 and the second bearing part 18. , the door body 15 can be securely locked and held without wobbling.

Furthermore, since the second bearing part 18 has elasticity, when attaching the door body 15 to the storage recess 14, the second bearing part 18 resists the elastic force of the support shaft 19, It also has the advantage of being easy to install, as it only needs to be pushed in.

As described above, the present invention provides a door mechanism that allows the door to be opened and closed easily and smoothly, and that can securely lock the door in the two open and closed positions without using any hinge members or locking tools. Since it can be realized with an extremely simple structure, it is practical to implement it in a cabinet of a television receiver, etc.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the external appearance of a general television receiver, Figs. 2 and 3 are vertical cross-sectional views showing different conventional examples of the door mechanism, and Fig. 4 is an illustration of the door mechanism of the present invention. A perspective view showing the embodiment, and FIGS. 5 and 6 are vertical sectional views showing the door mechanism in a closed state and an open state, respectively. 14: storage recess, 15: door body, 17: first bearing part,
18: Second bearing is part, 19: Support shaft.

Claims (1)

[Scope of utility model registration request] A door mechanism for opening and closing a storage recess provided in the device body,
Among the first and second bearing parts, at least the second bearing part is made to have elasticity, and the first bearing part is placed on the bottom surface of each left and right corner on the base end side of the storage recess, and the second bearing part is made to have elasticity. The first and second bearings are integrally molded on the side surfaces of each of the corner portions so that the portions face each other, and the two end portions of the door body facing the respective side surfaces of the storage recess are formed with the first and second bearings. The first and second bearings are integrally molded with a support shaft with a non-circular cross section that is inserted between the parts, and the lower half of the support shaft is in the first bearing part, and the upper half is in the second bearing part. With the door body held in the closed state and the lower half in surface contact with the curved recess of the first bearing part, as the support shaft rotates, the first In the two bearings, at least the second bearing allows the door main body to open by elastically displacing the parts, and
A door mechanism that maintains its open state.