JPS60225919A - Information apparatus - Google Patents

Abstract

PURPOSE:To turn a titled apparatus at an optional rotational angle and to fix it by utilizing face contact with a radial ratchet tooth and pressure by a coil spring with regard to one end of a case of a panel-shaped display body in a portable information apparatus. CONSTITUTION:Ratchet structures 4, 4' are provided in order that a case 2 containing a display body such as a liquid crystal, etc. can turn by about 180 deg. with respect to a main frame 1. A fixed ratchet 6 is fixed to the end part of the case 2, a ratchet guide 9 having guide projections 11, 11' is provided on the main frame case 1, the projections 11, 11' are fitted to the inside of the guide 9 and a moving ratchet 7 moves. Ratchet teeth 6a, 7a are provided on the contact face of the ratchet 6 and 7, respectively, pressed by a spring receiving screw 8 and a spring 10, and the ratchet 7 is moved in the axial direction by guide grooves 7b, 7c. When the case 2 is turned, the spring receiver 8 is turned, but the tooth 7a and 6a are engaged firmly by the spring 10 and the case 2 is fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to the structure of an information device aimed at portability, and particularly to an information device using a structure in which a rotating display case is fixed to a main body.

(Prior Art) Currently, display bodies mainly composed of liquid crystals for portable small devices are usually built into the main body to form an integral structure, or are generally used for structural ease. However, liquid crystal displays have low display brightness and are not easy to see, and depending on the angle at which you view the display, you may see reflections from fluorescent lights on the ceiling.
It also has the disadvantage that it can be difficult to see depending on the surrounding conditions, such as when your own face is reflected. In order to solve these drawbacks, it is necessary to improve the liquid crystal itself, but it is desirable to adjust the angle of the liquid crystal display and set an appropriate angle depending on the situation.

(Purpose) However, the present invention aims to realize a device with an easy-to-read display by providing a structure in which the angle of a liquid crystal display can be adjusted to an appropriate angle and can be easily fixed at that angle. This is the purpose.

(Embodiment) The present invention provides a fixed ratchet having a radially uneven tooth surface and a movable ratchet having a tooth surface opposite to this tooth surface at one end or both ends of a panel-shaped thin display case. Rotational resistance generated on the tooth surface due to pressure,
The present invention will be explained in more detail below with reference to the embodiments shown in the drawings.

Figure 1 shows the external appearance of a small portable computer designed using the structure of the present invention.A display case 2 that houses a display such as a liquid crystal is approximately 18mm tall with respect to the main body 1.
It is configured so that it can be rotated by 0 degrees, and the display case 2 can be rotated by about 90 degrees.
When opened more than ', the display section 3 becomes visible.

Of course, K can be further rotated and set at an appropriate position to make it the most visible position. The appropriate position is not uniform, but the height of the desk and the position of the eyes.

The usage environment 9 always varies depending on various conditions such as the degree of light hitting the display unit 3 and whether or not a background shadow is cast on the display surface, but at least in the embodiment shown in FIG.
It is configured so that the best point can be found within the rotation range of o0.

In Figure 1, 5 is the keyboard and 1, . 4
, , 4 ′ is a structure for making the display case rotatable and set at an appropriate angle, that is, a ratchet III structure that is the aim of the present invention.

FIG. 2 is a cross-sectional structural view showing details of the ratchet structure of the present invention, and is similar to the cross-sectional view of the portion indicated by the dashed line in FIG. 1. As can be seen from this drawing, the ratchet structure of the present invention includes a ratchet guide 9 that is fixed to the main body case 1 and has two ratchet guide protrusions 11 and 11' on the inside, and a ratchet guide 9 that is attached to the inside of the ratchet guide 9. A movable ratchet 7 that moves in the axial direction while fitting into the protrusion 11.11', a fixed ratchet 6 that is fixed to the end of the display case 2 and moves with the rotation of the display case 2, and a ratchet guide 9 that passes through it. Then, the spring holder that is screwed to the fixed ratchet 6 is screwed to the screw 8.
The ratchet spring 10 is arranged between the movable ratchet 7 and the spring receiver 80, and the display turf 20 can be rotated and fixed at any position by the following operation.

That is, the contact surfaces of the movable ratchet 7 and the fixed ratchet 6 are formed with ratchet teeth 7a and 6a, respectively, and the ratchet teeth 7a of the movable ratchet are pressed against the ratchet teeth 6a of the fixed ratchet 6 by the ratchet spring 10. Ru. ``At this time, the movable ratchet 7 is guided by the guide grooves 7b and 7c provided in the movable ratchet 7 to be able to move in the axial direction with respect to the ratchet guide protrusion 11.11' inside the ratchet guide 9, This guide allows the movable ratchet 7 to move in the axial direction, but is configured not to rotate.

Furthermore, the fixed ratchet 6 is firmly fixed to the display case 2 by means such as press-fitting or insert molding into the display case 2, and the movable ratchet 7 is connected to the fixed ratchet 6 at the center of the identification ratchet 6. A screw 8 is screwed to the spring receiver via a ratchet spring 10 so as to press strongly. Also, ratchet teeth 6a, 7
In this embodiment, a has the same shape as shown in FIG. 3, and the display case 2 is moved by using the click motion operation by raising and lowering the peaks and valleys due to the engagement of the tooth surfaces. It can be fixed at any position. In this embodiment, the strength of the rotational movement, that is, the fixing force, can be adjusted by the spring strength of the ratchet spring 10, and this depends on the weight of the display case 2, the feel of the rotation, etc. It is desirable to select the appropriate one depending on the conditions.

On the other hand, to explain the movement of the rotation operation, first, as the display case 2 rotates, the fixed ratchet 6 fixed to the display case 2 and the spring receiver 8 fixed to the fixed ratchet 6 with screws are rotated. However, at this time, the ratchet teeth 7a of the movable ratchet 7 inside the ratchet guide 9 fixed to the main body case 1 are strongly engaged with the ratchet teeth 6a of the fixed ratchet 6 and the ratchet spring 10, and are fixed. state. Furthermore, when a rotational force is applied, the peaks and valleys of the ratchet teeth begin to misalign, and the movable ratchet 7 moves axially in a direction that compresses the ratchet spring (the ratchet guide on the inner diameter side of the ratchet guide 11.11' (the ratchet 7 does not rotate), rotates until the next peak and trough of the ratchet teeth meet to obtain a stable condition. In this state, the display case 2 can be fixed at various angles. Of course, this angle is determined by the pitch of the peaks and valleys of the ratchet teeth, ie, the angle α in FIG.

(Effects) The structure of the present invention has been explained above. By using the structure of the present invention, the rotation angle of the display case can be large from 0 to 180 degrees, and at the same time, it can be rotated at any rotation angle. It can be fixed and the display body can be easily set at the most visible position.

Due to surface contact using radial ratchet teeth and basic configuration using coil springs, it has a high degree of durability.

Durable for long-term use.

As is clear from FIG. 2 of the embodiment, the space required for the structural configuration is extremely small, and this is extremely effective for information devices that aim to be light, thin, short, and small.

etc., produce effective effects.

[Brief explanation of the drawing]

Fig. 1 is an external view of a portable small computer using the rotating structure of the present invention, and Fig. 2 shows the configuration of the rotating structure. Figure, 3rd
It is an external view showing the appearance of the tooth surface of the ratchet tooth. 1...Body case 2...Display case 6...Liquid crystal display 4...Ratchet structure 5・-4-bow)
'6... Fixed ratchet 7... Moving ratchet 8
... Spring holder is screw 9 ... Ratchet guide 10 ... Ratchet spring 11 ... Ratchet guide protrusion or more Applicant Epson Corporation Shikiwa Seikosha agent Patent attorney Mogami SLL is also $1 figure

Claims (1)

[Claims] Consisting of a display case that houses a panel-shaped display device and a main case that locks the display case, one end or both ends of the line display case are opposed to a fixed ratchet having radially uneven tooth surfaces. An information device characterized in that the display case is configured to be rotatable by a rotary ratchet structure constituted by a movable ratchet having toothed surfaces and pressed by a spring.