JP2555139Y2 - Door opening and closing mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing mechanism applied to an opening / closing front operation panel used for a TV or the like.

[0002]

2. Description of the Related Art Heretofore, there has conventionally been provided, for example, an operation panel having a part of an operation switch of a TV, provided inside an openable door provided at a lower portion of a front surface of a TV main body. In the above-mentioned structure, generally, when the door is closed, the front surface of the main body and the surface of the door are flush with each other, and the door is rotated about the lower end thereof to be substantially horizontal. When opened in a state, various operation switches and the like are provided on an operation panel surface provided on the back surface of the door facing upward in this state. However, when the door is open, the operation panel surface is substantially horizontal, so that there is a problem that the switch is difficult to see and operate depending on the position of the user's eyes.

[0003] The above-described problem is, for example, as disclosed in Japanese Patent Publication No. 2-922, in which the rear side of the operation panel is positioned so as to face diagonally upward and forward of the TV when the door is open. This problem can be solved by forming the door in a trapezoidal cross-sectional shape that becomes higher, and providing the operation panel on an inclined surface that is hidden in the TV main body in the closed state. However, the depth of the door accommodating chamber must be increased by the height of the inclined surface, and there is a problem that it is difficult to reduce the depth dimension of the main body in making the TV compact.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, a main object of the present invention is to provide an operation provided on the back side of a door so that the door appears at the front of the main body when the door is opened. An object of the present invention is to provide a door opening / closing mechanism that can improve the visibility of a panel and can prevent the depth of a door housing chamber for housing a door and an operation panel when the door is closed from being lengthened.

[0005]

SUMMARY OF THE INVENTION Such object is achieved according to the present invention, the door body accommodating chamber that is recessed in the front face of the body, closed
When the door is opened, it is housed in the door body storage room in an upright state, and when the door is opened.
A door body proximal portion is <br/> pivotally supported on the body so as to fall down in front of the body, located in front of the body when the door is closed
One end is pivotally supported by the free end of the door body and the door is closed.
Sometimes a panel member that is received inside the door body, said path <br/> Rubeku the panel and the other end side of the panel member not rise Ri <br/> allowed from the inner surface of the door body when the door opening The other end of the body and the body
This is achieved by providing a door opening / closing mechanism characterized by having a link provided between the door opening and closing mechanism. Especially,
The link of the link with the main body is the book of the door body.
Located slightly toward the front of the body than the pivot portion of the body
It may have.

[0006]

[Function] In this way , the door is received inside the door when the door is closed.
When the panel body is opened, the ceiling rises from the inner surface of the door body.
Since the panel body faces obliquely upward in front of the main body, the visibility of the panel body can be improved, and when the door is closed, the panel body is received by the door body, and the panel body is moved from the closed door state to the panel body. Does not protrude, so there is no need to increase the depth of the door housing chamber.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail below with reference to a specific embodiment, with reference to the accompanying drawings, in which: FIG.

FIG. 1 shows a main body 1 of a TV to which the present invention is applied.
FIG. 3 is a perspective view showing the front side of FIG. A left-right horizontally long door housing chamber 1a is recessed in the center of the lower part of the front surface of the main body 1,
A door 2 that opens forward and downward of the main body 1 is attached to the door housing chamber 1a so as to be openable and closable. In the open state, as shown in the figure, the door 2 is in a substantially horizontal state. is open. On the upper surface side of the door body 2 in the opened state, a main body 1
The panel body 3 is provided in a state of being inclined forward. The panel body 3 is provided with various operation switches (not shown) for operating the TV.

FIG. 2 shows the door body 2 and the panel body 3 described above.
FIG. 3 is an exploded perspective view showing an opening and closing mechanism of a door body 2. As shown in FIG. 2, left and right frames 4a and 4b for pivotally supporting the door body 2 are provided on a left side wall of the door body housing chamber 1a, for example, on a stay 5 which is screwed to the left and right sides. Screwed at intervals. Large and small pivot pins 6 and 7 project below the surfaces of the frames 4a and 4b that are opposed to each other when the frames 4a and 4b are mounted. A large pivot pin 6 is provided on the back side of each of the frames 4a and 4b in the mounted state, and a small pivot pin 7 is provided on the near side slightly closer to the outside than the large pivot pin 6.

The door body 2 corresponds to the open state in FIG. 2, and the surface which is flush with the front surface of the TV when the door is closed faces downward in the figure, and the upper surface in the figure is concave. It has a U-shaped wall so as to form a shaped shape. Left and right side walls 2 of door 2
A pivot holes 8 are formed coaxially with each other on the distal end side in FIGS. At the left and right ends on the front end side, which are one ends in a direction orthogonal to the longitudinal direction of the panel body 3, pivot pins 9 projecting sideways are provided coaxially with each other, and the both side walls 2a -Insert each pivot pin 9 into the corresponding pivot hole 8 of 2b, and in front of the main body 1 when the door is opened.
One end of the panel body 3 is pivotally supported at the free end of the door body 2 located.
Have been. Thus, the panel body 3 is pivotally supported by the door body 2 so as to be freely rotatable.

Rear view of the side walls 2a and 2b of the door body 2 in the drawing.
At the end, mounting bosses 11a and 11b are integrated respectively.
And are formed coaxially with each other.
The pivot holes 12 are coaxially located at the center of
Has been drilled. In the assembled state, the aforementioned frame 4
The pivot holes 12 are fitted into the large pivot pins 6a and 4b.In
To the body 1The base end of the door 2 is pivotedIt is. Ma
In addition, there is a conflict with the pivot pins 9 on the left and right sides of the panel body 3.
To the left and right ends on the rear end side, which are the ends,
A projecting connection pin 13 is provided. Connecting pin 1
Reference numeral 3 denotes a connection hole provided at the enlarged diameter portion at one end of the link 14.
14a are fitted and correspond to the above-mentioned respective frames 4a and 4b.
Provided at the enlarged diameter portion at the other end of the link 14
The connection hole is fitted, and the rear end of the panel body 3 and the body
Each frame 4a and 4b integrated with 1,Link 1
4 are linked.

A sector gear 15 is integrally and coaxially formed on the right mounting boss 11b of the door body 2 in FIG. 2, and the damper 16 is screwed to the right frame 4b, for example. The gear 17 fixed to the drive shaft and the sector gear 15 mesh with each other. Also,
The right frame 4b is integrally formed with a lock mechanism housing chamber 19 for mounting a lock mechanism 18 for selectively holding the door body 2 in the closed state.

The lock mechanism 18 includes a stopper 22 having a head engaged with an engaging recess 21 provided on a side wall 2b of the door body 2 and a stopper 22 as shown in FIG. The case 23 is reciprocally supported in the direction in which the door body 2 approaches and separates from the door body 2 in the state. A push button type lever 24 is supported by a case 23 so as to be able to reciprocate in a direction, and a leaf spring 25 that elastically urges the door body 2 in the opening direction in the illustrated state.

As shown in FIG. 3, a pin 24a protruding from the front and back surfaces of the lever 24 in FIG.
Are guided by the top plate and the slot 23a provided in the bottom wall so as to protrude and retract from the front surface of the main body 1 as described above. The stopper 22 has a cam surface 22a formed of a slope which is in sliding contact with the pin 24a at the middle part of the main body. When the lever 24 is pushed in the direction of arrow A in the figure, the link between the pin 24a and the cam surface 22a causes The stopper 22 moves in the direction of arrow B. Then, the stopper 22 and the engaging recess 2
1, the door 2 can be opened in the direction of arrow C in the figure.

In the middle of the side wall 2b of the door 2, a convex portion 26 is provided which protrudes toward the back in the closed state. A leaf spring 25 is hinged to the back surface of the case 23 so as to swing freely. The leaf spring 25 has an L-shape having a portion along the back surface of the case 23 and a portion that goes around the rear end of the stopper 22. No. In the closed state shown in the figure, the projection 2
The other free end of the leaf spring 25 resiliently abuts the rear end of the stopper 22 such that the free end of the portion of the leaf spring 25 along the rear surface of the case 23 resiliently abuts the protruding end of the plate spring 6. Hit. Therefore, when the engagement state between the stopper 22 and the engagement concave portion 21 is released, the door body 2 is elastically pushed out in the door opening direction, so that
For example, the door 2 can be easily opened even when the frictional resistance due to the abutment of each pivot portion is large.

When the door 2 and the panel 3 are closed, the door 2 and the panel 3 stand upright in the door housing chamber 1a as shown by imaginary lines in FIG.
Is housed in a state . In this state, the shape of the panel body 3, the length of the link 14, and each pivotal position are set so that the panel body 3 is received in the recess of the door body 2. In addition, a small pivot pin 7 is provided at a predetermined interval on the opening direction side of the door body 2 with respect to the position of the large pivot pin 6 that pivotally supports the door body 2.

As described above, when the door is released from the closed state and the door 2 is opened so as to fall down toward the front lower side of the main body 1, for example, a part of the surface of the door 2 is placed on the bottom of the door housing chamber 1a. And the door 2 is held in a substantially horizontal state as shown by a solid line. When the door is opened, the damping force by the damper 16 is obtained by the engagement of the sector gear 15 and the gear 17 of the damper 16 as described above, and the door body 2 opens at an appropriate angular velocity.

When the door 2 is completely opened, the link 1
4, the back side which is the body 1 side of the panel body 3 is indicated by an arrow D in the figure.
Since the panel body 3 is lifted by a predetermined amount as shown by the arrow and the panel body 3 faces obliquely upward and forward as described above, the visibility of various switches provided on the surface when the panel body 3 is opened is improved. And operability is improved. In the closed state, since the panel body 3 is received in the door body 2, the depth of the door body accommodating chamber 1a only needs to correspond to the thickness of the door body 2 and does not need to be deep. . Therefore, in reducing the size of the main body 1 in the depth direction in making the TV compact, the depth of the door housing chamber 1a does not affect. In addition, both side walls 2a and 2 of the door body 2
The b is provided with a notch for avoiding interference with the connecting pin 13 of the panel body 3 in the receiving state.

In the above embodiment, the panel 3 is lifted from the door 2 via the link 14. However, pins provided on the free end side of the panel 3 are provided on the side wall of the door housing chamber 1a. Alternatively, the guide may be provided through the cam groove.
Note that the present mechanism is not limited to being used for a TV, but can be applied to, for example, a door of a glove box or furniture of an automobile, or can be applied to a keyboard of a personal computer.

[0020]

As described above, according to the present invention, the visibility of the panel body in the open state is good, and the panel body is received in the door body in the closed state. Since there is no need to make the body deep, the reduction of the depth dimension in making the body compact is not impaired.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an open state of a door body in a TV to which the present invention is applied.

FIG. 2 is an exploded perspective view showing the door opening and closing mechanism according to the present invention.

FIG. 3 shows a lock mechanism when the door is closed,
FIG. 3 is a plan view showing a cut-away upper surface of the frame as viewed from line III.

FIG. 4 is a side view showing an open / closed state of a door body. DESCRIPTION OF SYMBOLS 1 Main body 1a Door body accommodation room 2 Door body 2a, 2b Side wall 3 Panel body 4a, 4b Frame 5 Stay 6 Large pivot pin 7 Small pivot pin 8 pivot hole 9 pivot pin 11a, 11b Mounting boss 12 pivot hole DESCRIPTION OF SYMBOLS 13 Connection pin 14 Link 14a / 14b Connection hole 15 Sector gear 16 Damper 17 Gear 18 Lock mechanism 19 Lock mechanism storage chamber 21 Engagement concave part 22 Stopper 22a Cam part 23 Case 23a Slot 24 Lever 24a Pin 25 Leaf spring 26 Convex part

Claims (2)

(57) [Scope of request for utility model registration] A door housing chamber recessed in a front surface of the main body; and a door housing chamber which is housed in an upright state when the door is closed.
When the door is opened, the base end is
And the pivoted door body in the body, the front of the body when the door is closed
One end is pivotally supported by the free end of the door body located at
A panel body received inside the door body when the door is closed ,
The inner surface of the door body and the other end side of the panel body when the door opening
Before and second end of Rubeku the panel body so rise parsley from
A door opening / closing mechanism having a link provided between the door body and the main body. 2. A connecting portion between the main body of the link, before
Door opening and closing mechanism according to claim 1, characterized in that located slightly forward <br/> closer of the body than the pivot portion of the previous SL body Kitobiratai.