JP2812277B2 - Display device support mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a novel display device support mechanism. Specifically, a display device is provided on a part of the top plate side of the electronic device, which is rotated with respect to the device body,
It is related to a support mechanism of a display device which is often found in a so-called laptop type word processor or personal computer in which a display surface is exposed when opened. By improving the attachment of the display device to the main body of the electronic device, the display device can be further improved. It is an object of the present invention to provide a novel support mechanism for a display device which can be made larger.

[0002]

2. Description of the Related Art A display device in which the inner surface of an opening / closing lid of a device main body is used as a display surface can contribute to miniaturization of electronic devices.
It is used in laptop personal computers and the like.

FIG. 9 shows a conventional laptop type word processor a.

[0004] Reference numeral b denotes a flat box-shaped housing of the word processor a. The front half of the housing b is the display device c, and the other part is the device main body d.

The display device c is rotatably supported at the approximate center of the device body d in the front-rear direction via a hinge mechanism e, and the inner surface of the display device c is a display surface f. When the device c is rotated with respect to the device main body d to be in an open state, the display surface f is exposed to the front side.

An input unit g is provided on the device body d side facing the display surface e of the display device c, and is exposed to the outside when the display device c is opened. It is supposed to.

The hinge mechanism e, which is a connection point between the display device c and the device main body d, is provided with an appropriate friction means, and the display device c is inclined at an arbitrary angle with respect to the device main body d. It can be held.

By the way, in such a laptop type word processor a, the size of the display device c is limited to the main body d of the device.
When the miniaturization of the laptop type word processor a is attempted, the display surface f of the display device c becomes smaller and the visibility of the display surface f becomes worse.

Therefore, a laptop type word processor h as shown in FIGS. 10 and 11 can be considered.

That is, the ratio of the display device j to the housing i is increased, for example, so that the display device j covers almost the entire surface of the housing i on the top plate side. It is conceivable that the edges are connected by a hinge mechanism 1.

In this way, even if the word processor h is downsized, the size of the display device j is not
Is almost the same as that of the word processor a, so that the size of the display surface m can be increased.

[0012]

However, in the above conventional example h, there is a problem that the word processor h becomes unstable when the display device j is opened.

That is, when the display device j is opened and set up at a right angle to the device main body k, the center of gravity of the word processor h moves upward and backward, and the display surface m is positioned with respect to the viewing direction. Since it is preferably a right angle,
In many cases, the word processor h is used at an angle of more than a right angle with respect to the device body k, and the word processor h becomes more and more unstable.

The hinge mechanism 1 of the display device j has its center of rotation substantially at the center in the thickness direction of the display device j. In order to prevent the rear edge of j from colliding with the device body k, a notch n for so-called escape is provided on the device body k.
Must be formed, and when the display device j is closed,
As shown in FIG. 11, a groove o is provided between the rear end and the notch n.
The groove o impairs the external appearance, and has a problem that dust and the like are likely to enter because the groove o is opened upward, which deteriorates the opening / closing operation of the display device j.

[0015]

In order to solve the above-mentioned problems, the present invention provides a display device supporting mechanism for a so-called laptop electronic device.
A first support portion and a second support portion are respectively provided on both side surfaces thereof, and the first support portion is rotatably supported on the other end of a support whose one end is rotatably supported by the apparatus main body. , Second
Are slidably supported by a slide guide member disposed in the apparatus main body so as to extend in the front-rear direction.

Therefore, according to the support mechanism of the display device of the present invention, when the display device is rotated with respect to the device main body, the first support portion of the display device is vertically moved with respect to the device main body, and Since the second support portion can be moved in the front-rear direction with respect to the device main body, the back-and-forth movement of the center of gravity of the display device accompanying opening and closing of the display device can be reduced, and the opening angle of the display device can be increased. However, the stability of the display device itself is not degraded, so that the size of the display device can be increased.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the support mechanism of the display device according to the present invention will be described below with reference to the accompanying drawings.

In each of the embodiments shown in the drawings, the support mechanism of the display device of the present invention is applied to a laptop type word processor.

FIGS. 1 to 4 show a first embodiment of the support mechanism of the display device of the present invention.

In FIG. 1, reference numeral 1 denotes a word processor.

Reference numeral 2 denotes a housing of the word processor 1.
With a flat box shape, about 3
It is divided into a half part 2a and another part 2b.

Then, approximately 3
The display device 3 is housed inside the second part 2a, and the other part 2b houses electronic components and the like, thereby constituting the device body 4.

The display device 3 is rotatably supported by the device main body 4. A display surface 3a is formed on a surface of the display device 3 facing the device main body 4, and the display device 3 is mounted on the device main body 4.
The display surface 3a is exposed to the front when the display surface 3a is rotated in the opening direction.

Reference numeral 5 denotes a keyboard portion of the word processor 1, which is a device main body 4 facing the display surface 3a of the display device 3.
Are arranged in a portion of the display device 3 so as to be exposed by turning the display device 3 in the opening direction in the same manner as the display surface 3a of the display device 3. Has become.

The display device 3 is rotatably supported by the apparatus main body 4 by support mechanisms 7, 7 as described below.

The support mechanisms 7, 7 are used to connect between both side surfaces of the display device 3 and both side portions of the apparatus main body 4 on the top plate side. (Right side when viewed from the front).

The support mechanism 7 supports the display device 3 and the apparatus main body 4 at three points, one of which is a support portion between the display device 3 and the support (hereinafter referred to as a “first device”). 8, two are support portions (hereinafter, referred to as "second support portions") 9 between the display device 3 and the slide guide member of the device main body 4, and three are support members. And a rotation fulcrum 10 between the device body 4 and the main body 4.

The first support portion 8 is a bearing 1 fixed in a notch 3b formed on the lower surface on both sides of the rear end of the display device 3.
1 and a support shaft 13 (hereinafter, referred to as a "first support shaft") that is non-rotatably supported at one end of a support member 12 formed of a plate member.

The bearing 11 has a cylindrical portion 11a into which the first support shaft 13 is inserted, a mounting piece 11b extending tangentially from the outer surface of the cylindrical portion 11a, and an axially extending outer diameter extending from one end surface of the cylindrical portion 11a. Spring holding part 11c formed one size smaller
And a support hole 11d substantially equal to or slightly larger than the outer diameter of the first support shaft 13 is formed continuously with the cylindrical portion 11a and the spring holding portion 11c.

Numeral 14 denotes a coil spring, which is longer than the spring holding portion 11c of the bearing 11 and projects from the outer end face of the spring holding portion 11c when fitted to the spring holding portion 11c. The bearing 11 thus configured is fixed to the spring holding portion 11c by an appropriate means, for example, an adhesive. The mounting piece 11b of the bearing 11 is fixed to a position in front of the notch 3b of the display device 3 by a screw. Have been.

The first support shaft 13 has a support hole 11 d of the bearing 11.
The large-diameter portion 13b fitted tightly to the coil spring 14 and the large-diameter portion 13b fitted to the coil spring 14 and a portion cut off at the tip of the large-diameter portion 13b are formed in a track-like cross section to form the support 12 Has a non-circular portion 13c that is non-rotatably fitted into a connection hole 12a formed at the end of the bearing 11. The small-diameter portion 13a and the large-diameter portion 13b are fitted into the bearing 11, and The distal end of the non-circular portion 13 c is prevented from coming off with respect to the support 12 in a state where the non-circular portion 13 c is non-rotatably fitted into the connection hole 12 a of the support 12.

Thus, in the first support portion 8 of the display device 3, the inner surface of the coil spring 14 and the outer surface of the first support shaft 13 are press-fitted to form the friction means 15, whereby the friction means 15 is formed. A force acts in a direction in which the rotation of the first support shaft 13 with respect to the bearing 11 is prevented, and the opening and closing operation of the display device 3 can maintain the inclination at any open angle.

In the friction means 15, since the first support shaft 13 is pressed against the inner surface of the coil spring 14, the first
The rotation of the support shaft 13 in one direction is light, and the rotation in the other direction is slightly heavy.

That is, for example, when the first support shaft 13 fitted and pressed against the inner surface of the right-handed coil spring 14 rotates clockwise with respect to the coil spring 14, the first support shaft 13
A force acts in a direction in which the diameter of the coil spring 14 expands due to friction between the coil spring 14 and the coil spring 14, and the pressure contact state is loosened. Friction between the coil spring 14 and the coil spring 1
The force acts in the direction of reducing the diameter of 4, and it rotates heavily to tighten the pressed state.

Therefore, in order to prevent the display device 3 from rotating due to its own weight at the opening angle where the display device 3 is most used (opening angle of 90 ° or more), the display device 3
In this case, the coil spring 14 of the right friction means 15 may be wound right, and the left coil spring 14 may be wound left.

Conversely, the left and right coil springs 1
If the members 4 and 14 have the same orientation, the same frictional force can be exerted in both the opening direction and the closing direction.

Either of these methods may be appropriately selected depending on various conditions such as the application and the size of the display device.

The second support portion 9 is fixed to a position of the notch 3b formed on both sides of the display device 3 at a position closer to the rear than the mounting position of the bearing 11 of the first support portion 8. A shaft 17 (hereinafter referred to as a “second shaft”) non-rotatably fixed to the shaft fixing member 16 and a slide guide member 18 fixed to the device body 4 so as to extend in the front-rear direction. It is constituted by connection with the long hole 19.

That is, the second support shaft 17 is connected to the first support shaft 1.
The slide guide member 18 is formed at a position closer to the left and right side surfaces of the top plate of the device main body 4 and substantially in the center in the front-rear direction at a position close to the left and right sides of the display device 3. Are arranged at intervals substantially the same as the horizontal width of the slide guide member 18, and
A second support shaft 17 of the display device 3 is inserted into the display device 9, and an E-ring is fixed to an end of the support shaft 17 as a retaining member, so that the rear end of the display device 3 is a slide guide member. It is movable in the front-rear direction with respect to the device main body 4 by being guided by 18.

The rotation fulcrum 10 has a support 1 whose one end is rotatably supported by the first support 8 on the side surface of the display device 3.
The slide guide member 18 is formed by connecting a support shaft (hereinafter, referred to as a “third support shaft”) 20 fixed to the other end of the slide guide member 18 and a small hole formed in the rear end of the slide guide member 18.

The third support shaft 20 inserted through the small hole of the slide guide member 18 is prevented from falling off.

Thus, at the rotation fulcrum 10, the support 12 is fixed to the apparatus main body 4 side and rotatably supported by the slide guide member 18.

A notch 21 is formed in the middle of the support 12 so as to open downward. When the display device 3 is closed with respect to the device main body 4, the second support shaft 17 is closed. This is for so-called escape.

The support mechanism 7 of the display device 3 operates as follows.

That is, when the display device 3 is in the closed state with respect to the apparatus main body 4, the support portions 8, 9, and 10 are the first support portion 8, the second support portion 9, and the rotation fulcrum portion from the front. When the front portion of the display device 3 is lifted from this state and the opening operation is started, the support 12 rotates around the rotation fulcrum portion 10 in the order of 10. When the operation starts, the support shaft 17 of the second support portion 9 of the display device 3 is moved forward by being guided by the elongated hole 19 of the slide guide member 18, and the display device 3 shifts its rear end forward. The front end will rotate upward.

When the display device 3 is at right angles to the top plate of the device body 4, the first support portion 8 and the second support portion 9
Is perpendicular to the line connecting the second support portion 9 and the rotation fulcrum portion 10, and the first support portion 8 comes to the highest position in the movable range.

Further, when the display device 3 is rotated so that its display surface 3a is directed upward, the support shaft 1 of the second support portion 9 is rotated.
7 is moved forward, the support shaft 13 of the first support portion 8 moves so as to return to the locus that has been moved, and the second support shaft 17 moves into the elongated hole of the slide guide member 18. 19
The display device 3 can be tilted until it comes into contact with the front edge 19a of the display device.

It should be noted that the display device 3 can maintain its inclined state in a stepless manner within the openable and closable range by the above-described friction means 15 in the first support portion 8.

FIGS. 5 to 8 show a second embodiment of the support mechanism of the display device of the present invention.

The word processor 21 shown in the second embodiment differs from the word processor 1 shown in the first embodiment only in the structure and arrangement of the friction means. About the first
The same reference numerals as those in the first embodiment denote the same parts, and a description thereof will be omitted.

Specifically, in the word processor 21 shown in the second embodiment, the friction means is provided between the second support portion and the slide guide member.

The display device 3 is rotatably supported by the device main body 4 at three points by supporting mechanisms 22 and 22, respectively.
The first support portion 23 is a support point between the display device 3 and the support, the second support portion 24 is a support point between the display device 3 and the slide guide member of the device main body 4, The rotation fulcrum 10 serving as a support of the device 3 is a support point between the support and the device main body 4.

FIGS. 5 to 8 show only the left one of the two support mechanisms 22 when viewed from the front.

The first support portion 23 is fixed in a notch 3b formed on the lower surface on both sides of the rear end of the display device 3 and is provided with a support shaft (hereinafter referred to as a "first support shaft"). 25.) 25
Is rotatably fitted into a connection hole 26a formed at one end of a support 26 made of a plate member.

The second support part 24 is formed by the first support part 2 of the notches 3 b formed on both sides of the display device 3.
3 and a support shaft 27 (hereinafter referred to as a “second support shaft”) non-rotatably mounted at a position behind the mounting position of the first support shaft 25. A slide guide member 28 fixed to extend in the front-rear direction, a slider slidably engaged with a guide groove 29 of the slide guide member 28, and rotatably supported by the second support shaft 27; 30
Consisting of

The second support shaft 27 is made of, for example, PPT resin, and a spline shaft portion 31 is formed at a portion closer to the front end than the center portion in the axial direction, and the spline shaft portion 31 is formed.
The tip portion is formed as a tapered portion 32 that becomes narrower from the outer diameter of the spline shaft portion 31 toward the tip, and has a diameter slightly smaller than the spline shaft portion 31 at the rear end side of the spline shaft portion 31. Is formed.

Reference numeral 34 denotes a support shaft supporting portion for supporting the second support shaft 27. The support shaft support portion 34 has a substantially rectangular block shape and is disposed in the notch 3b of the display device 3. And a support hole 35 opened in the center of the outer surface thereof.
The support hole 35 is formed with a square hole 36, an intermediate hole 37, and a small-diameter hole 38 in this order from the opening toward the back. The intermediate hole 37 has a circular cross section and is substantially the same size as the outer diameter of the spline shaft portion 31.
Is formed in a shape and a size into which the thin shaft portion 33 of the second support shaft 27 is inserted.

Reference numeral 39 denotes a spline bearing member, which has a rectangular block shape, and has a spline bearing hole 40 which penetrates the center thereof and into which the spline shaft portion 31 of the second support shaft 27 fits. The spline bearing member 39 is fitted in the square hole 36 of the support hole 35 and fixed by bonding or the like, whereby the spline bearing hole 40, the intermediate hole 37 and the small diameter hole 38 are coaxial. It is to be.

Reference numeral 41 denotes a coil spring which is externally fitted to the thin shaft portion 33 of the second support shaft 27 in the intermediate hole 37 of the support hole 35. The coil spring 41 is fitted in the square hole 36 of the support hole 35 by a spline bearing member. The spline bearing member 39 is housed in a no-load state, that is, in a natural length between the inner end surface of the spline bearing member 39 and the inner surface of the intermediate hole 37 in a state where the fitting 39 is fitted.

The second support shaft 27 is inserted into the support hole 35, and the spline shaft portion 31 is inserted into the spline bearing hole 40 of the spline bearing member 39 so that the second support shaft 27 cannot rotate and cannot rotate in the axial direction. The coil spring 41 is movably supported, and is pushed in the depth direction of the support hole 35, whereby the coil spring 41 is compressed by the rear end face of the spline shaft portion 31, and the repulsive force biases the outward moving force. It will be.

The slide guide member 28 is made of, for example, phenolic resin, has a substantially U-shaped cross section, and has a guide groove 29 opened to the side, and the guide groove 29 extends in the front-rear direction. It is fixed to the main body 4.

The upper wall 29u and the lower wall 29 of the guide groove 29
d are parallel to each other in the front-rear direction, and are inclined so as to approach each other from the opening edge to the back, and
The front end wall 29f of the guide groove 29 is formed on an inclined surface that is deviated downward as it goes forward, and the rear end wall 29b is formed on a substantially vertical surface.

The slider 30 is made of, for example, polyoxymethylene resin, has a thickness in the left-right direction slightly smaller than the depth of the guide groove 29 of the slide guide member 28, and has an upper surface 30u and a lower surface 30d formed with a guide groove. 29 upper wall 2
9u and the lower wall 29d, respectively, are formed in parallel in the front-rear direction and on the inclined surface in the depth direction of the guide groove 28, and the front end surface 30f is formed on the inclined surface corresponding to the front end wall 29f of the guide groove 29. The rear end face 30b is formed in a substantially vertical plane.

A spindle insertion hole 42 penetrating through the thickness in the left-right direction is formed substantially in the center of the slider 30, and the spindle insertion hole 42 is formed in the tapered portion 32 of the second spindle 27.
The tapered surface is formed so as to have a smaller diameter as it goes deeper from the insertion opening.

Then, the second support portion 24 is connected to the display device 3.
The tapered portion 32 of the second support shaft 27 which is non-rotatably and slidably supported in the support hole 35 of the support shaft support portion 34 is fitted into the support shaft insertion hole 42 of the slider 30, and the slider The second support shaft 27 is configured to be slidably fitted in the guide groove 29 of the slide guide member 28 in the front-rear direction so that the second support shaft 27 always projects outward by the elastic force of the coil spring 41. And the tapered portion 32 is inserted into the support shaft insertion hole 42 of the slider 30.
The upper surface 30u and the lower surface 30d are pressed against the upper wall 29u and the lower wall 29d of the guide groove 29 of the slide guide member 28, respectively.

Thus, the above-described support mechanism 22 of the display device 3 operates as follows.

That is, when the display device 3 is in the closed state with respect to the device main body 4, the supporting portions 23, 24, and 10 are in the first position.
The support portion 23, the second support portion 24, and the rotation fulcrum portion 10 are arranged horizontally in a straight line when viewed from the side, and the front portion of the display device 3 is lifted from this state to start the opening operation. Then, the support 26 starts rotating around the rotation fulcrum 10, and the slider 30 of the second support 24 of the display device 3.
Is moved forward by being guided by the guide groove 29 of the slide guide member 28, and the display device 3 is rotated such that the front end is directed upward while the rear end is shifted forward.

When the display device 3 is at a right angle to the top plate of the main body 4, the line connecting the first support portion 23 and the second support portion 24 is connected to the second support portion 24 and the pivot point. It is perpendicular to the line connecting the unit 10 and the first support unit 23 comes to the highest position in the movable range.

Further, when the display device 3 is rotated so that the display surface 3a thereof is directed upward, the first support portion 23 is moved as the slider 30 of the second support portion 24 is moved forward. Can be tilted until the slider 30 moves back along the locus that has been moved so far, and the slider 30 contacts the front end wall 29f of the guide groove 29 of the slide guide member 28.

The slide guide member 28, the slider 30, and the second support shaft 27 act as the friction means 43 during the opening and closing operation of the display device 3 as follows.

That is, as described above, the slide guide member 2
8 and the upper surface 30u and the lower surface 30d of the slider 30 are pressed against each other. Therefore, when the slider 30 slides on the guide groove 29, a frictional force acts to prevent the sliding at all times. Further, since the second support shaft 27 cannot rotate with respect to the display device 3, the display device is
When tilted with respect to the slider 30, the second support shaft 27 rotates with respect to the slider 30, but as described above, the support shaft support hole 42 of the slider 30 and the tapered portion 32 of the second support shaft 27 Are pressed against each other, a frictional force acts so as to prevent the rotation of the second support shaft 27, and each member functions as the friction means 43, and the device main body 4 of the display device 3 has its openable / closable range. , The inclined state can be maintained steplessly.

[0072]

As is apparent from the above description, the support mechanism of the display device of the present invention is a flat box-shaped display supported on the top plate side of the electronic device so as to be rotatable with respect to the device main body. A support mechanism for a device, wherein a first support portion and a second support portion are provided on both sides of a display device in front and back of the display device in a closed state, respectively, and one end of the first support portion is a device. The other end of a support rotatably supported by the main body is rotatably supported, and the second support portion is slidable on a slide guide member disposed on the device main body so as to extend in the front-rear direction. It is characterized by being supported by.

Therefore, according to the support mechanism of the display device of the present invention, when the display device is rotated with respect to the device main body, the first support portion of the display device is vertically moved with respect to the device main body, and Since the second support portion can be moved in the front-rear direction with respect to the device main body, the back-and-forth movement of the center of gravity of the display device accompanying opening and closing of the display device can be reduced, and the opening angle of the display device can be increased. However, the stability of the display device itself is not degraded, so that the size of the display device can be increased.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of a support mechanism of a display device of the present invention together with FIGS. 2 to 4, and is a perspective view showing a laptop type word processor.

FIG. 2 is an enlarged perspective view of a main part.

FIG. 3 is a side view of a main part for explaining the movement of the display device.

FIG. 4 is an enlarged perspective view showing a first support portion in an exploded manner.

FIG. 5 shows a second embodiment of the support mechanism of the display device of the present invention, together with FIGS. 6 to 8, and is a perspective view showing a main part partially cut away.

FIG. 6 is an exploded perspective view of a second support portion.

FIG. 7 is an enlarged sectional view of a main part.

FIG. 8 is a side view of a main part for explaining the movement of the display device.

FIG. 9 is a side view showing a first conventional example together with FIG. 10 and FIG. 11, showing an electronic apparatus provided with a conventional display device.

FIG. 10 shows another conventional example together with FIG.
This figure is a side view showing an open state of the display device.

FIG. 11 is a side view showing a closed state of the display device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 electronic device 3 display device 4 device main body 7 support mechanism 8 first support 9 second support 12 support 18 slide guide member 21 electronic device 22 support mechanism 23 first support 24 second support 26 Support 28 Ride guide member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G09F 9/00 312 G06F 1/16

Claims (1)

(57) [Claims] 1. A flat box-shaped support mechanism for a display device rotatably supported on a device main body on a top plate side of an electronic device, comprising: A first support portion and a second support portion are separately provided, and one end of the first support portion is rotatably supported at the other end of a support body having one end rotatably supported by the device body. A support mechanism for a display device, wherein the second support portion is slidably supported by a slide guide member provided in the device body so as to extend in the front-rear direction.