JPH0720753Y2 - Display panel tilting mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a tilting mechanism for varying a tilt angle of a display panel provided in an electronic device such as a desktop electronic calculator.

[Prior Art] In general, a display panel (liquid crystal display panel) provided in a large-sized desk-top computer or the like can change an inclination angle with respect to a main body case in order to make the display easy to see. In this case, the display panel is supported by the display case, and the display case supporting the display panel employs a tilting mechanism that is tiltably supported by a main body case including a keyboard and the like. Conventionally, in this tilting mechanism,
A shaft that rotates with the tilt of the display case is provided on the center of tilt of the display case, and a gear that rotates together with the shaft is provided on the shaft, while gear teeth on the shaft are provided near the center of tilt of the main body case. A leaf spring for pressure contact is provided. According to such a conventional tilting mechanism, when the display case is tilted manually, the gear on the shaft that rotates with it is rotated together with the shaft. Since the leaf spring is always in pressure contact with the display case, the tilting of the display case whose tilting is stopped at a predetermined tilt position is stopped without turning due to the rotation restraining action of the gear teeth and the leaf spring that presses against the gear case. It will be fixed at the position.

[Problems to be Solved by the Invention] However, like the conventional tilting mechanism, the display case is provided with a shaft, a gear is mounted on the shaft, and a leaf spring is pressed against teeth of the gear to tilt the display case. In addition, if the display case is fixed (rotation is suppressed), the structure becomes complicated, and when the display case is tilted, the leaf spring continuously pushes over the teeth of the rotating gear while pressing against it, causing a jerky motion. There was also the drawback of becoming.

This invention was made in view of the above circumstances,
It is an object of the invention to provide a display panel tilting mechanism having a simple structure and capable of a smooth tilting operation.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a flexible connecting member for electrically connecting a keyboard having a plurality of operation buttons and a display panel, and each operation of the keyboard. An upper main body case having a plurality of openings into which buttons are inserted and hinge portions formed at both ends on one side, and a display portion of a display panel rotatably connected to the hinge portion of the upper main body case. An upper display case with an opening for exposing the keyboard, a storage recess for storing the keyboard are formed, and a lower main body case with a screw mounting portion formed on one end side, and a storage recess for storing the display panel are formed. Then, a base end portion that extends in an arc shape toward the one side end of the lower main body case is formed, a cylindrical support portion is formed on the base end portion, and the tilting of the upper display case is performed on the support portion. The axis protrudes in the direction orthogonal to the direction The formed lower display case, a cylindrical bearing part into which the shaft of the lower display case is rotatably inserted, and a screw mounting part of the lower main body case that extends in parallel to the radial direction of this bearing part. The upper display case and the upper main body case, and the lower display case and the lower main body case have a keyboard, a display panel, and a connecting member. The upper display case and the lower display case can be tilted with respect to the upper body case and the lower body case by sandwiching them and integrating them, and adjusting the tightening amount of the tightening member to reduce the frictional force applied to the shaft of the lower display case. By adjusting,
It is characterized in that tilting motions of the upper display case and the lower display case can be suppressed.

[Operation] According to the present invention, the upper body case and the upper display case are rotatably connected by the hinge portion, and the lower body case and the lower display case are fixed to the shaft of the lower display case and the lower body case. The upper display case and the upper main body case, and the lower display case and the lower main body case are integrated by sandwiching the keyboard, the display panel and the connecting member. It can be easily done, and when assembled in this way, the upper display case and the lower display case will be tiltably connected to the upper body case and the lower body case, and the tightening of the tightening member will be possible. By adjusting the amount and adjusting the frictional force applied to the shaft of the lower display case, the tilting motion of the upper display case and the lower display case can be suppressed. The frictional force applied to the can be easily adjusted, the structure is simple, and the tilting operation of the upper display case and the lower display case can be smoothly performed.

[Embodiment] An embodiment in which the present invention is applied to a display panel of a large desk-top computer will be described below with reference to the drawings.

1 to 3 show a desk-top computer according to the first embodiment, FIG. 1 is an exploded perspective view thereof, FIG. 2 is an external perspective view thereof, and FIG. 3 is an exploded view showing its display case and main body case. It is a top view.

This desktop electronic computer includes a keyboard 1 for inputting predetermined data, a liquid crystal display panel 2 for displaying a calculation result of the data input by the keyboard 1, and a solar cell used as a power source for the entire electronic computer. 3, a main body case 4 for accommodating the keyboard 1, a display case 5 for accommodating the liquid crystal display panel 2 and the solar cell 3 and pivotably supported at the rear end of the main body case 4. There is.

The keyboard 1 includes a rubber operation board 7 integrally having a large number of operation buttons (keys) 6 and a predetermined gap between two insulating flexible sheets 8 and 9 which are superposed and adhered to each other. It is composed of a contact sheet 10 having a large number of movable contacts (not shown) and fixed contacts, which are placed facing each other. In this case, the operation board 7 is laminated on the contact sheet 10 and fixed by adhesion. In such a keyboard 1, when the operation button 6 is pressed, the contact sheet 10 is bent and the movable contact corresponding to the pressed operation button 6 comes into contact with the fixed contact to be in a switch-on (data input) state. When the pressing force is removed from the button 6, the movable contact is separated from the fixed contact due to the elastic recovery of the contact sheet 10 and is switched off.

The liquid crystal display panel 2 and the solar cell 3 are electrically connected to the contact sheet 10 of the keyboard 1 by a flexible connecting member 11 so as to exert their respective functions.

The main body case 4 is a synthetic resin case including an upper case 12 and a lower case 13, and includes an upper main body case (hereinafter, referred to as an upper case 12) and a lower main body case (hereinafter, a lower case).
Shallow accommodating recesses 4a, 4a into which the keyboard 1 is fitted are provided in the inside of each of (13). Then, cylindrical short hinges 14 and 15 are integrally formed on both sides of the rear end portion of the upper case 12, and the top plate 16 of the upper case 12 has the keyboard 1 housed in the housing recess 4a. Multiple openings for slidably fitting each operation button 6
17 are formed. A boss (screw mounting portion) 18 having a screw hole 18a is provided on one side (right side) of the rear end portion of the lower case 13.
Is integrally formed, and a tightening hinge (tightening member) 19 is tightened and fixed to the boss 18 by a bolt (screw) 20. The tightening hinge 19 is composed of a strip-shaped thin metal plate, and has a cylindrical bearing portion 21 whose both ends are bent so as to have a predetermined interval, and extends horizontally from both ends of the bearing portion 21. The clamp portion (flange portion) 22 is formed by a pair of extended portions, and when the clamp portion 22 is tightened, the diameter of the bearing portion 21 is reduced according to the tightening amount. Such a tightening hinge 19 is attached to the boss 18 by a bolt 20 inserted into a bolt hole 23 formed in the central portion of the clamp portion 22.

The display case 5 is a synthetic resin case including an upper display case (hereinafter, referred to as upper case 25) and a lower display case (hereinafter, referred to as lower case 26). A shallow storage recess into which the liquid crystal display panel 2 and the solar cell 3 are fitted over substantially the entire area.
5a and 5a are provided. Further, cylindrical short hinges 28 and 29 are integrally formed on both sides of the base end portion of the upper case 25, and the top panel 30 of the upper case 25 has the display portion of the liquid crystal display panel 2 outside. An opening 31 for exposing and an opening 32 for exposing the light receiving portion of the solar cell 3 to the outside are formed. A shaft 33 arranged on the tilt center is provided on one side (right side) of the base end of the lower case 26. The shaft 33 is integrally formed on an arcuate base end portion of the lower case 26, is supported by an outer end support portion 34, and slightly floats from the base end surface 35.

The hinges 28 and 29 of the display case 5 configured as described above are connected to the hinges 14 and 15 of the body case 4 by hinge pins (tilt centers) 36, respectively, and the shaft 33 is the tightening hinge 19 of the body case 4. When the clamp portion 22 is fastened to the bearing portion 21 by a bolt 20, the shaft 33 is rotated so as to fix the predetermined frictional force (the display case 5 tilted at a predetermined inclination angle) from the bearing portion 21 to the position. The frictional force that can be suppressed is applied in a given state. The hinges 28, 29 and 14, 15 and the shaft 33 and the tightening hinge 19 are connected to each other when the body case 4 and the display case 5 are in a disassembled state as shown in FIG. 12 and the upper case 25 of the display case 5, and between the lower case 13 of the main body case 4 and the lower case 26 of the display case 5. In this way, the upper case 12 of the body case 4, the upper case 25 of the display case 5, and the body case 4
After the lower case 13 and the lower case 26 of the display case 5 are coupled, the keyboard 1 is housed in the main body case 4, and the display case 5 is connected to the keyboard 1 by the connecting member 11. Also, the solar cell 3 is housed, and the upper case 12, 25 and the lower case 13, 26 of the main body case 4 and the display case 5 are joined together.

According to the desk-top electronic computer of the first embodiment configured as described above, the display case 5 can be tilted with respect to the main body case 4 with the hinge pins 36, 36 of the both side hinge portions as the tilt centers. Display case 5 is hinge pin
When the 36, 36 are tilted about the tilting center, the shaft 33 provided on one side of the base end portion is fitted into the bearing portion 21 of the tightening hinge 19 provided on the main body case 4, and the bearing portion 21 Since the display case 5 is rotated with a predetermined frictional force applied thereto, when the tilting is stopped, the display case 5 is securely fixed at that position.

The present invention can be widely applied to not only the display panel of the desk-top electronic computer shown in the embodiment but also the display panel of other electronic devices.

[Effects of the Invention] As described above, according to the present invention, the upper main body case and the upper display case are rotatably connected by the hinge portion, and the lower main body case and the lower display case are connected to each other. The shaft and the lower body case are connected by a fastening member, and the upper display case and the upper body case are integrated with the lower display case and the lower body case by sandwiching the keyboard, the display panel and the connecting member. , The assembling work and the connecting work can be easily performed, and when assembled in this way, the upper display case and the lower display case are tiltably connected to the upper body case and the lower body case. Moreover, by adjusting the tightening amount of the tightening member to adjust the frictional force applied to the shaft of the lower display case, the tilting movement of the upper display case and the lower display case Since the work can be suppressed, the frictional force applied to the shaft can be easily adjusted, the structure is simple, and the tilting operation of the upper display case and the lower display case can be smoothly performed.

[Brief description of drawings]

The drawings each show an embodiment of the present invention, and FIG.
FIG. 2 is an exploded perspective view of a desk top computer according to an embodiment, FIG. 2 is an external perspective view of the desk top computer, and FIG. 3 is an exploded plan view showing a display case and a body case of the desk top computer. 1 ... Keyboard, 2 ... Display panel, 4 ... Main body case, 4a ... Storage recess, 5 ... Display case, 5a ... Storage recess, 6 ... Operation button, 11 ... Connection member, 12 ... Upper case (upper body case), 13 …… Lower case (lower body case),
14, 15 ... Hinges, 17 ... Openings, 18 ... Boss (screw mounting part), 19 ... Tightening hinge (tightening member), 20 ... Bolt (screw), 21 ... Bearing part, 22 ... … Clamp part (flange part),
25 …… Upper case (upper display case), 26 …… Lower case (lower display case), 28,29 …… Hinge, 31 …… Opening, 33 ……
Shaft, 34 ... Support, 35 ... Base end surface.

Claims (1)

[Scope of utility model registration request] 1. A flexible connecting member for electrically connecting a keyboard having a plurality of operation buttons and a display panel, a plurality of openings into which the operation buttons of the keyboard are fitted, and one side. An upper main body case having hinge portions formed at both ends on the end side; and an upper display case rotatably connected to the hinge portion of the upper main body case and having an opening for exposing the display portion of the display panel, A lower body case having a storage recess for storing the keyboard and a screw mounting portion formed on one end side, and a storage recess for storing the display panel are formed, and the one side end of the lower body case is formed. A base end portion extending in an arc shape toward the base is formed, and a columnar support portion is formed on the base end portion, and a shaft is projected on the support portion in a direction orthogonal to the tilting direction of the upper display case. Formed lower display case, A cylindrical bearing portion into which the shaft of the lower display case is rotatably inserted, and a pair of extending in parallel to the radial direction of the bearing portion and tightened and fixed to the screw mounting portion of the lower body case by a screw. A fastening member integrally formed with a collar portion, the upper display case and the upper body case, the lower display case and the lower body case, the keyboard, the display panel and the connection member Of the lower display case by making the upper display case and the lower display case tiltable with respect to the upper main body case and the lower main body case, and adjusting the tightening amount of the tightening member. A display panel tilting mechanism, wherein tilting motions of the upper display case and the lower display case can be suppressed by adjusting a frictional force applied to a shaft.