JPH0583749U - Video equipment with openable lid and built-in screen - Google Patents

Abstract

(57) [Summary] [Purpose] The size of the main body of the lid opening / closing type video equipment in which the upper and lower ends of the screen are attached to the lid and the body, respectively, and the screen stands up as the lid opens. The opening width of the lid body can be made large without making it unnecessarily large, and at the same time, the opening and closing operation of the screen can be smoothly performed. In the video equipment as described above, an opening / closing support mechanism of a lid is rotatably supported by a main body, and a link plate having an elongated hole and a lid protruding from an engaging hole of the link plate are provided. The above-mentioned pin, the link plate and the lower end of the screen are connected to each other, and the link means is configured to push the screen to the image projection position when the lid is opened.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lid opening / closing type video device having a built-in screen.

[0002]

[Prior Art]

 Video equipment that uses a liquid crystal panel to project an image to the front or back is known, but with the current technology, when trying to use it in the daytime or outdoors, the brightness (luminance) on the screen is inadequate. , I can't fully enjoy the video. Therefore, the video projector equipped with a screen and a liquid crystal plate is housed in a box with a lid that opens and closes so that the screen stands up and there is a relatively dark space between the screen and the video projector. It is considered to be.

[0003]

[Problems to be solved by the device]

 When the screen and the image projection device are stored in the box with the lid as described above, the whole is portable, and there is a new advantage that it can be easily carried outdoors. There are also problems. In other words, in order to secure the screen size to a certain extent or more, the area of the lid itself and the opening of the lid must be made large. There is a problem in that the size of the image becomes larger than necessary. If the bulk of the box increases, the advantage of being portable is greatly diminished, and in that respect it is also uncomfortable. Therefore, in this invention, the opening width of the lid can be made large without increasing the size of the main body, and the size of the screen can be easily made large, and at the same time, the storage expansion operation of the screen is extremely smooth. The present invention aims to provide a lid opening / closing type video device equipped with a new opening / closing support mechanism that can be performed.

[0004]

[Means for Solving the Problems]

 A lid opening / closing type video device according to the present invention is a lid opening / closing type video device in which upper and lower ends of a screen are attached to a lid side and a body side, respectively, and the screen stands up when the lid is opened. An opening / closing support mechanism for the lid body to the main body is (a) a link plate rotatably supported by the body and having an elongated hole, (b), protruding from the lid body engaging with the elongated hole of the link plate. A lid opening / closing type video device having a built-in screen consisting of a pin, (c), link means for connecting the link plate and the lower end of the screen, and pushing the screen to the image projection position when the lid is opened. is there.

[0005]

【Example】

 FIG. 3 is an overall perspective view of a trunk type liquid crystal projector device as an embodiment of a lid opening / closing type video device according to the present invention. This device is a trunk type including a main body (1) with a handle (1a) and a lid (3) attached to the main body (1) via an opening / closing support mechanism (2) described later so as to be openable and closable. It is housed in a housing, and a liquid crystal projector, a power supply circuit for the liquid crystal projector, and an 8 mm VTR device (neither of which is shown) are provided in the main body (1), and a screen for displaying an image projected by the liquid crystal projector ( 4) is provided between the lid body (3) and the main body (1). (5) is an operation panel section.

An upper end of the screen (4) is axially attached (6) to the lid body (3), and a lower end of the screen (4) is slidable along a rail (7) provided on the main body (1), so that the lid By opening and closing the body (3), the screen (4) moves between an upright position (Fig. 1) and a horizontal position (Fig. 2) that is housed in close contact with the inner surface of the lid (3). To do. (8) is a wheel shaft attached to the lower end of the screen (4). The wheel rolls inside the rail (7). Further, a torsion coil spring (9) is provided on the shaft attachment (6) portion, and urges the screen (4) so as to always turn clockwise in FIG.

Next, the opening / closing support mechanism (2) will be described. The mechanism (2) is rotatably attached (10) to the main body (1) and has a substantially triangular shape in which an elongated hole (11) is formed. The link plate (12), the pin (13) on the lid (3) side that engages and projects into the elongated hole (11) of the link plate (12), the link plate (12), and the lower end of the screen (4). It is composed of a link lever (14) connected to each other. Reference numeral (15) is a bracket integral with the lid (3), and pins (13) project from the bracket (15).

A torsion coil spring (16) is provided on the shaft mount (10) to urge the link plate (12) to always turn clockwise in FIG. (17) is a spring locking portion on the main body side, and (18) is a spring locking portion of the link plate (12).

Next, the link lever (14) will be described. The link lever (14) has one end connected to the same shaft as the wheel shaft (8) and the other end engaged with the link plate (12). The levers are connected to each other and have a substantially Ω shape, and the engaging portion with the link plate (12) has a pin (20) protruding from the link plate (12) in an elongated hole (19) formed in the lever (14). ) Is engaged.

With the above-described configuration, in the liquid crystal projector device of the above embodiment, in the state of FIG. 2 in which the lid body (3) is closed, the link plate (12) is counterclockwise against the coil spring (16). When turned, the link lever (14) becomes almost upright, but when the lid (3) is opened by lifting it with hand, the link plate (12) is assisted by the coil spring (16) to turn clockwise. Then, the pin (13) rises along the elongated hole (11). As a result, the lower end of the screen (4) gradually starts moving to the left in the figure along the rail (7), and one end of the link lever (14) on the wheel shaft (8) side is also pulled to move to the left.

Then, when the clockwise rotation of the link plate (12) reaches the final stage (FIG. 1), the link lever (14) is in a posture in which it is squeezed between the pin (20) and the wheel shaft (8), and the screen is rotated. The lower end of (4) will be pushed to the leftmost end of the rail (7). At this time, the screen (4) becomes upright and the optimum projection position by the projector inside the main body. In FIG. 2, the coil spring (16), the rail (7), etc. are omitted.

When the lid body (3) is pushed downward from this lid open state, the link plate (12) first starts to turn counterclockwise, whereby the wheel shaft (8) of the link lever (14). Since one side end starts moving rightward in FIG. 1, the lower end of the screen (4) also starts moving rightward along the rail (7). Eventually, the link plate (12) and the link lever (14) are finally folded into the state shown in FIG.

In the above-mentioned embodiment, the link means for pushing the screen to the image projection position is composed of one link lever (14), but two link levers (21) (22) are provided as follows. ). That is, as shown in FIG. 4, a first link lever (21) pivotally mounted (23) on the inner wall of the main body (1) is provided inside the main body (1), and the first link lever (21) is provided. The long hole (21a) formed in the free end of the link plate (12) is engaged with the pin (24) of the link plate (12), and the pin (24) at one end of the second link lever (22) having almost the same shape as the link lever (14) is formed. 22a) is engaged in this slot (21a).

In the second embodiment as well, the screen (4) is stored and opened in accordance with the opening and closing of the lid body (3) by substantially the same operation as in the first embodiment.

The following points are apparent through the first and second embodiments. That is, the apparent center of rotation of the lid (3) is the point P shown in FIGS. 1 and 4, but if a normal hinge is used as the support mechanism of the lid (3), this point P Since the main body (1) has to be extended (1b) up to this point, this extended portion (1b) is compact. If the lid (3) is attached to the Q point using a hinge without extending the main body (1), the opening width of the lid (3) will be the same as the support of this case if the opening angle is the same. Mechanism (2) Smaller than the adopted device.

[0016]

[Effect of the device]

 As described above, according to this invention, the opening width of the lid can be increased without increasing the size of the main body more than necessary, and thus the size of the screen can be increased. Alternatively, if the size of the screen is fixed, the size of the main body and the lid can be made more compact. Also, the link means for pushing the screen to the image projection position when the lid is opened brings the position of the screen when the lid is opened to a proper position smoothly.

[Brief description of drawings]

FIG. 1 is a side view of a liquid crystal projector device as an embodiment according to the present invention. (When the lid is open).

FIG. 2 is a side sectional view of the same when the lid is closed.

FIG. 3 is an overall perspective view of the same.

FIG. 4 is a side view of another embodiment.

[Explanation of symbols]

 (1) Main body (2) Open / close support mechanism (3) Lid body (4) Screen (6) Shaft mounting (7) Rail (8) Wheel shaft (10) Shaft mounting (11) Slotted hole (12) Link plate (13) ) Pin (14) Link lever (link means) (19) Oblong hole (20) Pin (21) First link lever (link means) (22) Second link lever (link means)

Claims (1)

[Scope of utility model registration request] 1. A lid opening / closing type video device in which upper and lower ends of a screen are attached to a lid side and a body side, respectively, and the screen stands up when the lid is opened. (A) a link plate rotatably supported by the main body and having an elongated hole; (b) a pin protruding from a lid engaging with the elongated hole of the link plate; A lid opening / closing type video device having a built-in screen, comprising: a link means for connecting the link plate and a lower end of the screen to push the screen to an image projection position when the lid is opened.