JPH0521132Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a device for adjusting the angle of a display device in an electronic device such as a personal computer or a word processor.

<Prior art and its problems> In the above devices, programs and data are displayed on a display such as a CRT (cathode tube). This display is attached to the main body so that its angle can be adjusted so that it can be easily viewed by the operator. Therefore, a device for adjusting the angle of the display is incorporated, and a ratchet mechanism has conventionally been used as this device. However, in devices using a ratchet mechanism, angle adjustment is performed in stages, making fine adjustment impossible and requiring a large installation space. In addition, in the case of a structure in which the display is folded into the main body, it is necessary to lift it from the folded state to the standing state, and in order to make it automatically stand up, a so-called flip-up type, a separate biasing means such as a gas spring or spring is required. There are also problems in that the structure is complicated.

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide an angle adjustment device for a display device that has a simple structure, can be adjusted steplessly, and can be flipped up.

<Means for Solving the Problems> In order to achieve the above object, the present invention provides a display device in which the display is pivoted to stand up on the main body, and in which the display device is connected in the axial direction and mutually attached to the pivot point. two shafts that rotate,
a spring that is closely fitted onto at least one of the two shafts, has one end engaged with one of the two shafts, and has a free end; an operating piece that engages with the free end of the spring when rotated in the direction to accumulate the energy of the upright rotation of the display, one of the two shafts facing the display and the other shaft facing the main body. It is characterized in that the angle of the display in an upright state is adjusted by a load force greater than the frictional force of the spring attached to the side.

<Function> When the display is folded, the working piece engages with the free end of the spring and is pressed. Since one end of the spring is locked and fixed to one shaft, this pressing causes the spring to expand in diameter. This stores energy in the spring, creating a lifting force that automatically raises the display. Therefore, when the display is unlocked from folding, the display will pivot and stand up until the spring energy is released. In this state, the display maintains its upright state due to the frictional force of the springs, but if a load greater than this frictional force is applied, the springs slip and the angle of the display is adjusted.

<Example> Hereinafter, the present invention will be specifically described with reference to an illustrative example. Note that in each embodiment, the same parts will be explained using the same reference numerals.

1 to 5 show an embodiment of the present invention, and FIGS. 6 and 7 show a display device to which the present invention is applied. FIGS. 1A, 1B, 1C, and 1D are sectional views of essential parts of the display device of the present invention, where 10 is a display, 11 is a main body that supports the display 10, and A is an angle adjustment device. In FIG. 1, one shaft is a fixed shaft 2, and the other shaft is a movable shaft 1. The angle adjustment device A includes a fixed shaft 2 having a cylindrical shaft portion 2a extending from the left end side and a flat mounting piece 2b extending from the right end side, a movable shaft 1 into which the fixed shaft shaft portion 2a is inserted, and these. It is constituted by a spring 4 extrapolated to the shafts 1 and 2 of. Movable axis 1 and fixed axis 2
are formed to have the same outer diameter, and a spring 4 is fitted onto this outer diameter portion. The spring 4 is made of a coil spring, and its coil diameter is wound slightly smaller than the outer diameter of the movable shaft 1 and the fixed shaft 2, and the coil diameter is expanded when extrapolated to the shafts 1 and 2. done in the state. Therefore, after extrapolation, the spring 4 is connected to both shafts 1, 2.
is tightened, and the rotation of the movable shaft 1 is locked by the frictional force. Further, as shown in FIG. 4, the movable shaft 1 has a stepped portion 1 having a notched outer peripheral surface.
A is formed, and one end 4a of the spring 4 is in contact with this stepped portion 1a. On the other hand, the other end of the spring 4 extends in the winding direction of the coil portion to form a free end 4b. In the extrapolated state of the spring 4, the number of turns around the movable shaft 1 is large and the number of turns around the fixed shaft 2 is small, as shown in FIG. The force is large, which makes it possible to adjust the angle of the display 10 as described later. In the figure, 5 is an operating piece that engages with the free end 4b of the spring 4. In this embodiment, the operating piece 5 is integrally formed with the fixed shaft 2 by extending a portion of the fixed shaft 2 outward and bending this extended portion in the direction of the spring 4 . Note that the right end portion of the fixed shaft 2 extends flat in the axial direction and serves as an attachment piece 2b to the main body 11 that supports the display 10. Further, an E-ring 3 is fitted to the end of the shaft portion 2a of the fixed shaft 2 to prevent the movable shaft 1 from coming off.

On the other hand, the display device, as shown in FIGS. 1, 6, and 7, consists of a display 10 that displays data and the like on a screen 12, and a main body 11 that supports the display 10. In this case, both lower ends of the display 10 are pivotally supported by the main body 11, so that the display 10 is structured to stand up with respect to the main body 11. An angle adjustment device A is attached to this pivot portion to flip up and adjust the angle of the display 10.

Next, the operation of this embodiment will be explained. The state in which the display 10 is folded into the main body 11 (Fig. 7a)
At point ), the display 10 is biased in the upright direction by the energy stored in the spring 4, as will be described later. Therefore, this folded state is held by an appropriate locking mechanism (not shown). When the display 10 stands upright (point b in FIG. 7), the rotation of the movable shaft 1 is locked by the frictional force caused by the tightening of the spring 4, and the display 10 maintains the upright state.
In this state, move the display 10 in the direction of arrow B (the seventh
When a load force is applied by pressing on the spring 4, the load force is in the winding direction of the spring 4, so if it is smaller than the friction force of the spring 4, the display 10 will not rotate. If it is larger than this, the spring 4 and the fixed shaft 2 will slip, and the movable shaft 1 will rotate in the same direction (in the direction of arrow B in FIG. 3), causing the display 10 to rotate. This slip of the spring 4 occurs only on the fixed shaft 2 side and not on the movable shaft 1 side, so the spring 4
rotates together with the movable shaft 1. This is because the number of windings around the movable shaft 1 is greater than the number of windings around the fixed shaft 2, and the frictional force of the spring 4 acting on the movable shaft 1 is greater than on the fixed shaft 2. After the operator's preferred angle is obtained in this way, when the loading force is released,
Since the rotation of the movable shaft 1 is locked by the frictional force of the spring 4, the display 10 is stopped at that tilt angle and the angle is adjusted. Such angle adjustment can be performed within the designed movable range of the display 10 (range from point b to c in Fig. 7), but since this adjustment is performed by rotating the movable shaft 1, it is stepless. can be adjusted, making fine adjustments easy. Note that when a load force is applied in the opposite direction (direction A in FIG. 7) within the movable range of the display 10, the frictional force due to the spring 4 decreases because this direction is opposite to the winding of the spring 4. The display 10 can be operated with little force. Next, changing from the standing state (point b in Figure 7) to the folded state (point a in Figure 7) can be done by continuing the load force in the same direction to the display 10, and moving the movable shaft 1 to the folded state (point a in Figure 7). The spring 4 rotates in the direction of arrow A in FIG. 3, but the free end 4b of the spring 4 comes into contact with the action piece 5 formed on the fixed shaft 2, and the free end 4b is pressed. This direction is spring 4
Since the winding direction is opposite to that of , the coil diameter of the spring 4 expands and energy for restoring is stored. At this time, one end 4a of the spring 4 comes into contact with the stepped portion 1a of the movable shaft 1, and its rotation is restricted. That is, in this state, the spring 4 acts as a torsion spring. This energy is maximum when the display 10 is in the folded state, and when the folding lock of the display 10 is released, the display 10 automatically stands up due to this energy. Therefore, the display 10 can be made into a flip-up type. The spring 4 causes the display 10 to bounce up.
The energy stored in is released until the spring 4 tightens the movable shaft 1, causing the display 10 to stop near point b in FIG. Therefore, in this embodiment, the display can be adjusted steplessly and flipped up with a simple structure, and the installation space can be reduced.

In the above-described embodiment, one axis and the other axis of the present invention were respectively the fixed axis 2 and the movable axis 1,
The reverse use is also possible. That is, the fixed shaft 2
can be attached to the display 10 as a movable axis, and the movable axis 1 can be attached to the main body 11 and used as a fixed axis. In this case, the spring 4 for adjusting the angle
The slip occurs only on the movable shaft side due to the difference in the number of turns of the spring 4, and does not occur on the fixed shaft side, so the spring 4 maintains its fixed state without rotating.

Figures 8 to 10 show another embodiment of the invention. In this embodiment, one shaft and the other shaft of the present invention are a fixed shaft 13 attached to the main body 11 and a movable shaft 14 attached to the display 10, respectively. In this embodiment, an axial through hole is formed in both the fixed shaft 13 and the movable shaft 14, and the support shaft 6 is inserted into this through hole. Therefore, the ends of the fixed shaft 13 and the movable shaft 14 are both prevented from coming off by the E-ring 3. In this embodiment, since the movable shaft 14 rotates around the support shaft 6, the same operation can be performed by assembling the spring 4 in the same manner as in the previous embodiment.

FIGS. 11 to 15 show still another embodiment. In this embodiment, as in the previous embodiment, one shaft and the other shaft of the present invention are a fixed shaft 15 and a movable shaft 16, respectively. In this embodiment, the outer diameter of the fixed shaft 15 is larger than that of the movable shaft 16, and the spring 4 is fitted only onto the movable shaft 16. Further, an axial groove 7 is formed on the outer surface of the fixed shaft 15, and one end 4a of the spring 4 is inserted into this groove 7. Therefore, the rotation of the spring 4 is restrained, and a load force in the winding direction causes slippage with the movable shaft 16, and a load force in the counter-winding direction causes the action piece 5 to come into contact with the movable shaft 16. Then, the diameter expands and the energy for flipping up the display 10 can be stored.

Also, in the embodiments shown in FIGS. 8 to 15, the movable shaft 1 is similar to the embodiments shown in FIGS. 1 to 7.
It is also possible to use the fixed shafts 4 and 16 as fixed shafts and the fixed shafts 13 and 15 as movable shafts, and the same effect can be obtained in this case as well.

<Effects of the invention> As described above, the present invention has a structure that uses the frictional force of the spring to adjust the angle of the display, so the adjustment is stepless and fine adjustment is easy. By applying the restoring force to the other movable axis, the display can be made into a flip-up type, which improves operation, and since a single spring serves both of the above functions, the number of parts and assembly can be reduced. Since the number of man-hours is small and the structure is simple and compact, the installation space can be reduced, which is effective.

[Brief explanation of the drawing]

Fig. 1 shows a display device according to the present invention; (a) is a front sectional view thereof, (b) is a sectional view taken along line A - C, (c) is a sectional view taken along line A - H, and (d) is a sectional view taken along line K - N of A. ,
2, 3, and 4 are a left side view, a right side view, and a front view of the angle adjusting device in the display device, FIG. 5 is a cross-sectional view taken along the line -- in FIG. The figures are a plan view and a sectional view taken along the line -2 of a display device to which the present invention is applied;
8, 9, and 10 are sectional views, left side views, and right side views of another embodiment, and FIG. 11 is a sectional view of yet another embodiment of the present invention, and FIGS. 12 and 13. The figure and FIG. 14 are a left side view, a right side view, and a front view, and FIG. 15 is a sectional view taken along the line -- in FIG. 14. 1, 14, 16...Movable axis (other axis), 2,
13, 15... fixed shaft (one shaft), 4... spring,
4a... One end of the spring, 4b... The other end (free end) of the spring, 5... Working piece, 6... Support shaft, 10... Display, 11... Main body, A... Angle adjustment device.

Claims (1)

[Claims for Utility Model Registration] (1) In a display device in which the display is pivoted to stand up on the main body, two shafts connected in the axial direction and mutually rotating are attached to the pivot point. , is closely inserted into at least one of these two shafts, and one end engages with the other of the two shafts, and the other end is a free end, and the display is moved by frictional force. a spring that locks rotation in the tilting direction and causes slippage with at least one of the shafts under an external force load greater than the frictional force, thereby making it possible to adjust the angle of the display, and rotation of the display in the folding direction; An angle adjusting device for a display device, comprising: an operating piece that engages with the free end of the spring to accumulate energy for raising and rotating the display. (2) The angle adjustment device for a display device according to claim 1, wherein either the one shaft or the other shaft is formed with a shaft portion that is inserted into the other shaft. (3) The angle adjustment device for a display device according to claim (1) of the utility model registration, wherein support shafts are inserted into the one shaft and the other shaft. (4) The angle adjustment device for a display device according to any one of claims (1) to (3), wherein the spring is extrapolated to both of the two shafts. (5) Utility model registration claim No. (4) in which the number of windings of the spring around the two shafts is different between the two shafts.
An angle adjustment device for a display device as described in Section 1.