JPH0610065Y2 - Door opener - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Use) The present invention relates to a door opening / closing device provided in a television receiver or the like.

(Conventional example) Conventionally, a one-way opening / closing door is provided in an electronic device housing such as a television receiver to accommodate an operation unit.

FIG. 3 is an exploded perspective view showing an example of a conventional door opening / closing device.

In this figure, reference numeral 51 is a housing, and 52 is a door. An arm portion 53 is formed on the back surface of the door 52, and a pin 54 is projectingly provided at the tip of the arm portion 53. On the other hand, a front surface 51a of the housing 51 is provided with a recess 55 that accommodates an operation unit (not shown) at a position closer to the bottom surface 51b, and is externally fitted by the door 2. Further, from the opening surface of the recess 55 to the bottom surface. The surface extending to 51b projects from the front surface 51a to form a predetermined curved surface 51c. A predetermined opening 56 is formed on the bottom surface of the recess 55 and the side surface of the housing 51 on the bottom surface 51b side. Further, the protruding piece 5 is provided inside the curved surface 51c of the housing 51.
7 is formed, and a U-shaped notch 58 is formed on the end surface of the protruding piece 57. The fixing portion 5 is arranged in parallel with the protruding piece 57.
9 and a protrusion 60 are provided. Then, in order to pivotally support the pin 54 that is loosely inserted from the opening 56 and fitted into the notch 58, the fixing member 63 in which the two holes 61 and 62 of different sizes are arranged is the protruding piece 57. End face (notch 5
A part of the protrusion 60 is inserted into the hole 62, the screw 64 is inserted into the hole 61 and screwed into the fixing portion 59, and the fixing member 63 is fixed to the fixing portion 59. ing. In such a door opening / closing device, the pin 54 of the arm portion 53 penetrating into the housing 51 through the opening 56 is fitted into the notch portion 58 formed in the projecting piece 57 provided in the housing 51. In order to prevent the pin 54 from falling out of the notch portion 58, the protruding piece 5
The end surface of 7 is brought into contact with a part of the fixing member 63, and the pin 54
The door 52 can be opened and closed by rotatably pivoting.

However, the fixing member 63 is attached to the fixing portion 59 provided inside the housing 1.
In order to fix the screws with the screws 64, it is necessary to work from the inner surface side of the housing 51, and in a portable (small) television receiver or the like, the curved surface 51c of the housing 51 greatly projects, For example, there is a problem that the distance from the bottom surface of the concave portion 55 formed in the housing 51 to the fixed portion 59 becomes large, and the work is performed using a long driver, which further deteriorates the workability.

Further, the fixed portion 5 formed on the inner surface of the curved surface 51c of the housing 51.
9 and the protrusion 60, when the housing 51 is manufactured by molding with a synthetic resin or the like, after the molding, the outer surface side of the housing 51 is subject to heat shrinkage, resulting in unevenness. If it is on the front side (image display surface) of the receiver, there is a disadvantage that it is unsightly in appearance.

(Problems to be solved by the invention) In the conventional door opening / closing device, in order to fix the fixing member to the fixing portion, screwing work must be performed from the inside of the housing, which is poor workability. There was a problem. Further, there is a problem in that the fixing portion and the protruding portion provided inside the front surface of the housing are thinned to deteriorate the appearance of the front surface.

An object of the present invention is to provide a door opening / closing device that eliminates the above problems, improves workability, and does not impair the appearance of the housing.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a door opening / closing device that is provided in a housing and partially rotatably pivotally supports a door that covers the recess to perform an opening / closing operation. A door having a mounting arm portion provided with a rotation pin at a tip portion; a first opening portion provided on a concave surface of the housing for inserting and removing the arm portion of the door into and out of the housing; A projecting piece that is provided in the housing near the opening and has a notch for axially supporting the rotary pin of the door on its end surface; and a bottom surface of the housing that is close to the end surface of the projecting piece. A second opening formed in the housing, a fixing portion provided outside the housing from the bottom surface of the housing in which the second opening is formed, and one end of the fixing portion from outside the housing. Is attached, and the other end is inserted into the second opening to abut the end surface of the protruding piece, and the notch Is obtained by including a rotatably supported, fixed member said rotation pin.

(Operation) According to the present invention, the fixing member for pivotally supporting one end of the door can be inserted and fixed from the outer surface of the housing, so that the screwing work is simplified. Further, even if the outer surface of the housing of the fixing portion and the protruding portion is thinned, the fixing portion and the protruding portion can be formed in a portion other than the front surface, so that it does not become unsightly.

(Embodiment) Hereinafter, the present invention will be described with reference to an illustrated embodiment.

FIG. 1 is an exploded perspective view showing an embodiment of a door opening / closing device according to the present invention, and FIG. 2 is an explanatory view showing the operation of FIG.

In FIG. 1, reference numeral 1 is a housing, and 2 is a door formed in a part of the housing. An arm portion 3 is formed on the back surface of the door 2, and a pin 4 is projectingly provided at the tip of the arm portion 3. On the other hand, the front surface 1a of the housing 1 is provided with a not-shown recessed portion 5 at a position close to the bottom surface side 1b, and the recessed portion 5 to be fitted with the door 2 is formed. The surface extending to 1b is formed with a predetermined curved surface 1c protruding from the front surface 1a. An opening 6 that is a first opening is formed in a predetermined shape on the bottom surface of the recess 5 and the side surface on the side of the bottom surface 1b. Further, a protruding piece 7 provided inside is formed on the curved surface 1c of the housing 1, and a U-shaped cutout portion 8 is formed on an end surface of the protruding piece 7. Further, a rectangular opening 9a is formed on the bottom surface 1b facing the opening 6 on the side surface on the bottom surface 1b side, and the rectangular opening 9b is formed so as to be orthogonal to the opening 9a and contact the end surface of the protruding piece 7. A T-shaped opening 9 which is a second opening is formed, and a fixing portion 10 having a screw hole and a protrusion 11 are provided in the vicinity of the opening 9 and the bottom surface 1b on the outer surface side. It is installed in. And
In order to pivotally support the pin 4 loosely inserted from the opening 6 and fitted into the notch 8, two holes 12 of different sizes are formed on one side.
An L-shaped fixing member 14 provided with 13 is inserted into the opening 9 from the outer side of the bottom surface 1b to the other side, and a part of the end piece of the protruding piece 7 is abutted. Moreover, the protrusion 11 has the hole 13
The fixing member 14 is fixed to the fixing portion 10 by inserting the screw 15 into the hole 12 and screwing the screw 15 into the screw hole of the fixing portion 10.

In the door opening / closing device configured as described above, the housing 1
The fixing portion 10 and the fixing member 14 formed on the bottom surface of the
In order to fix it, the fixing member 14 is inserted through the opening 9 formed in the bottom surface 1b, abuts on the end face of the protruding piece 7, and the hole 13 of the fixing member 14 and the protruding portion 11 are fitted and positioned. Then, the screw 15 is screwed into the fixing portion 10 through the hole 12. Then, as shown in FIG. 2, the door 4 can be opened and closed centering on the pin 4 of the door 2 fitted with the cutout portion 8.

Therefore, since the fixing work of the fixing member 14 can be performed from the outer surface side of the bottom surface 1b, the workability is improved. Further, since the place where the fixing portion 10 is formed is the bottom surface 1b, the housing 1
In the case of manufacturing by molding, there is an advantage that the appearance from the front of the housing is not deteriorated and the commercialability is not deteriorated because the bottom surface is the bottom even if the fixing portion 10 and the protruding portion 11 are thinned. is there.

Further, by providing the opening 9 on the bottom surface 1b of the housing 1 so that the arm 3 of the door 2 can be inserted, the length of the arm 3 can be made longer than before and the opening angle of the door 2 can be increased. Therefore, there is an advantage that the operability of the operating portion housed in the recess 5 is improved.

[Advantages of the Invention] As described above, according to the present invention, the fixing member can be fixed from the outside of the bottom surface of the housing, so that the workability of assembly is improved and the fixing portion at the time of molding the housing Since the projecting portion can be formed in a portion other than the appearance portion, it is not unpleasant to see even if the shrinkage occurs. Furthermore, the opening angle of the door can be increased,
There is an advantage that operability is improved.

[Brief description of drawings]

1 is an exploded perspective view showing an embodiment of a door opening / closing device according to the present invention, FIG. 2 is an explanatory view showing the operation of FIG. 1, and FIG. 3 is an example of a conventional door opening / closing device. It is an exploded perspective view. DESCRIPTION OF SYMBOLS 1 ... Housing | casing 2 ... Door 3 ... Arm part, 4 ... Pin 5 ... Recessed part, 6 ... Opening part 7 ... Projecting piece, 8 ... Notch part 9 ... Opening part, 10 ... Fixing part 11 ... Projecting part, 12 ... Hole 13 ... Hole, 14 ... Fixing member 15 ... Screw

Claims (1)

[Scope of utility model registration request] 1. A door opening / closing device which is provided in a housing and rotatably pivotally supports a part of a door that covers a recess, and has a mounting arm portion having a rotation pin at its tip end. A door, a first opening provided in a recessed surface of the housing for inserting and removing the arm portion of the door in and out of the housing, and an end surface provided in the housing close to the first opening. A protruding piece formed with a notch for axially supporting the rotary pin of the door; a second opening formed on the bottom surface of the housing in proximity to the end face of the protruding piece; A fixing portion that is provided so as to project from the bottom surface of the housing having an opening to the outside of the housing, and one end of the fixing portion is attached to the fixing portion from the outside of the housing, and the other end side is the second opening portion. Through which the rotary pin is rotatably supported in the cutout portion by inserting it into contact with the end surface of the projecting piece. Switchgear door, characterized by comprising a.