Indication device

Abstract

While a television setup designed for easy viewing while lying on one's back has been disclosed in which the television is attached to a holder at the end of an arm, and the base of the arm is attached to a fixing device, this setup requires the holder and fixing device to be fixed at a predetermined angle in order to position the television in a position that is easy for the viewer to see. For example, readjusting the setup every time one turns over in bed would be quite difficult. [Solution] By having the center of gravity of the structure containing the projector and screen located near the spherical center of the stud of the ball joint magnet, and by holding the structure with the stud in spherical contact with the socket of the ball joint magnet, it is possible to construct a display device that allows the screen to be moved with very little force and placed in the desired position for the viewer, whether the user is lying supine or on their side.

Description

Technical Field

[0001] The present invention relates to a display device that is easy to view when lying supine or on the side.

Background Art

[0002] As a TV device that is easy to view when lying supine, a method has been proposed in which a TV is attached to a holder at the tip of an arm and the base of the arm is attached to a fixture. (See Patent Document 1)

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0003] However, in the conventionally known technology, in order to fix the TV at a position that is easy for the viewer to view, it is necessary to fix the holder and the fixture at a predetermined angle. For example, it was quite difficult to reinstall every time one turned over in bed.

[0004] In view of the problems of the above-described conventional technology, the present invention has been made, and in any supine or lateral lying state, while maintaining a substantially constant distance from the viewer's head, and always facing the display surface toward the viewer side, a display device that can be rotated by the viewer with a slight force and has a large screen and is lightweight is realized.

Means for Solving the Problems

[0005] In order to solve the problems of the above-described conventional technology and achieve the above-described object, the display device of the invention described in claim 1 of the present invention is characterized in that the center of gravity of a structure having a projector and a screen is near the center of the sphere of the stud of a ball joint magnet, and the structure is held by a socket of the ball joint magnet.

Effects of the Invention

[0006] According to the invention described in the first claim, the center of gravity of the structure having a projector and a screen is near the spherical center of the stud of the ball joint magnet, and the structure is held by the socket of the ball joint magnet, which has the effect of making it possible to rotate the display device with a small force and to keep it stationary at any position. [Best Mode for Carrying Out the Invention]

[0007] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0008] This embodiment corresponds to the invention described in claim 1, and Figures 1, 2, 3, and 4 are diagrams illustrating the display device in this embodiment.

[0009] Figure 1 is an explanatory diagram of the display device in this embodiment, showing a state in which a viewer 100 is lying on their back and viewing an image formed on a screen 350 by light projected from a projector 310.

[0010] The display device of this embodiment consists of a stand 200, a ball joint magnet base 201 and a socket 211 for the ball joint magnet, and a structure 300 placed on the socket for the ball joint magnet. The structure consists of a screen 350, a screen holding mechanism 351, an arm 340, a chassis 313, a balancer 312, a ball joint magnet stud 320, a projector 310, and the like. The screen is held by the arm with the screen holding mechanism, and the arm, balancer, and projector are held by the chassis.

[0011] Here, the chassis 313 is connected to the ball joint magnet stud 320 (hereinafter referred to as the stud), and the spherical stud, made of magnetic metal, is in spherical contact with the ball joint magnet socket 211 (hereinafter referred to as the socket). Due to the attractive force of the magnet inside the socket, the stud is attracted to the socket and can rotate around the spherical center of the stud, so that the structure 300 connected to the stud can also rotate, move and stop freely within a range without interference.

[0012] Figure 2 shows the state in which the stud has been pulled away from the socket in this embodiment.

[0013] When in use, the stud is attracted to the socket by magnetic force, but when not in use, the structure can be lifted by hand or other means to detach the stud from the socket and remove the structure from the viewer's vicinity.

[0014] Figure 3 shows the stand 200, ball joint magnet base 201, and stud 211 for understanding this embodiment, illustrating how the two stands are connected by the ball joint magnet base, and how the stud is supported by the ball joint magnet base.

[0015] Figure 4 also shows a cross-sectional view of the ball joint magnet to aid in understanding this embodiment.

[0016] The socket 211 has a magnet 214 built into a non-magnetic metal frame 212, and a female screw 213 is formed at the bottom of the frame.

[0017] The stud 320 of the ball joint magnet is a sphere of magnetic metal, with a male screw 321 attached to a part of it.

[0018] The stud is connected to the chassis, which is part of the structure, using the female threads mentioned above, and the socket is connected to the ball joint magnet base using the female threads mentioned above.

[0019] Effects of this embodiment Viewers using the display device of this embodiment can move the screen with very little force, whether lying on their back or on their side, and place it in the position they desire.

[0020] Moreover, viewers who use the display device of the present embodiment often receive nursing care or caregiving. At such times, a display device with a large screen can interfere with nursing care or caregiving. However, since the structure of this display device can be easily removed and attached by hand, it can be placed away from the viewer during nursing care or caregiving, which has the effect of facilitating nursing care or caregiving.

Brief Description of the Drawings

[0021] [Figure 1] Explanatory drawing of the display device in the present embodiment [Figure 2] Explanatory drawing showing the state where the stud is separated from the socket in the present embodiment [Figure 3] Diagram showing the stand, ball joint magnetic base, and stud of the present embodiment [Figure 4] Cross-sectional view of the ball joint magnet in the present embodiment

Explanation of Reference Numerals

[0022] 100 ··· Viewer 200 ··· Stand 201 ··· Ball joint magnetic base 211 ··· Socket of the ball joint magnet 212 ··· Socket frame of the ball joint magnet 213 ··· Socket female screw of the ball joint magnet 214 ··· Inner magnet of the socket of the ball joint magnet 300 ··· Structure 310 ··· Projector 312 ··· Balancer 313 ··· Chassis 320 ··· Stud of the ball joint magnet 321 ··· Stud male screw of the ball joint magnet 340 ··· Arm 350 ··· Screen 351 ··· Screen holding mechanism

Claims

[Claim 1] A display device in which the center of gravity of a structure having a projector and a screen is near the spherical center of the stud of a ball joint magnet, and the structure is held by a socket of a ball joint magnet.

Images