TWI513312B - Supporting device for screen - Google Patents

Description

Screen support device

The present invention relates to a support device, and more particularly to a torsionally transformable screen support device.

Most of the conventional screen support devices are equipped with a washer screw and the positive force generated by the screw lock to compress the washer to generate torque. If the torque of the demand is large, it is necessary to make a structure that is larger and meets the torque demand (for example, a gasket with a large cross-sectional area).

However, the conventional screen supporting device for carrying the bearing of the screen is mostly based on the weight of the screen to be carried as the design basis of the torque, that is, the torque of the carrier of the conventional screen supporting device and Not variability.

However, due to the prevalence of today's touch screens, most of the handles of the screen support device require a large torque when using the touch screen, and when the touch screen is not used, it is desirable to have the carrier of the screen support device. The torque is small. Therefore, the conventional screen supporting device obviously cannot meet the above requirements of the torque conversion.

Therefore, the present inventors have felt that the above-mentioned deficiencies can be improved, and they have devoted themselves to research and cooperated with the application of the theory, and finally proposed a present invention which is reasonable in design and effective in improving the above-mentioned defects.

Embodiments of the present invention provide a screen support device that can provide different magnitudes of torque according to a force applied by a user to a carrier.

The embodiment of the present invention provides a screen supporting device, comprising: a base; a bracket module, wherein opposite end portions are respectively defined as a bottom end portion and a top end portion, and the bottom end portion is pivotally disposed along a rotation axis a pivoting structure is disposed at a top end of the bracket module, and the pivoting structure includes: a shaft that is disposed at a top end portion of the bracket module, the shaft has a non-circular cross section, and The longitudinal direction of the shaft is defined as a central axis, the central axis is parallel to the axis of rotation; a carrier member for carrying a screen, and the carrier is formed with a through hole and a limiting hole, the carrier a through hole sleeve is disposed on the shaft, and the carrier member is pivotable relative to the shaft with the central axis as an axis; and a torque adjustment structure includes: a limiting spacer having a limiting portion and a positioning hole having a non-circular shape and an outer shape corresponding to the cross section of the shaft, the positioning hole of the limiting spacer is sleeved on the shaft; and a torsion spring having a resilient portion formed by a spiral metal and Two insertion portions extending from opposite ends of the elastic portion, the bullet The inner space surrounded by the spiral portion is defined as a channel, and the passage of the elastic portion is sleeved on the shaft, and the cross-sectional shapes of the two insertion portions respectively correspond to the limiting hole of the carrier and the limiting spacer a limiting portion, wherein the two insertion portions are respectively inserted into the limiting hole of the bearing member and the limiting portion of the limiting spacer; wherein the limiting spacer has a non-circular cross section and the positioning hole is sleeved After the shaft is non-circular in cross section, the limiting spacer sleeved on the shaft is held stationary, and the torsion spring inserted in the limiting portion of the limiting spacer is The insertion portion provides a limiting function, and in order to resist the pivoting of the carrier, the elastic portion is twisted by the two insertion portions to provide an additional torque of the carrier.

In summary, the screen supporting device provided by the embodiment of the present invention provides a pre-carrier by a torsion spring when the bearing member is pivoted by the cooperation between the torsion spring, the carrier and the limiting spacer. Additional torque.

In order to further understand the features and technical contents of the present invention, please refer to the following The detailed description of the present invention and the accompanying drawings are intended to illustrate the invention and not to limit the scope of the invention.

100‧‧‧Screen support device

1‧‧‧Base

2‧‧‧ bracket module

21‧‧‧ body rod

22‧‧‧ four-link

221‧‧‧Positioning holes

23‧‧‧ pivot unit

3‧‧‧ pivot structure

31‧‧‧ shaft

32‧‧‧washer set

321‧‧‧stop washer

3211‧‧‧Piece

3212‧‧‧stop film

3213‧‧‧Positioning holes

322‧‧‧ raised washers

33‧‧‧ nuts

4‧‧‧ Carrier

41‧‧‧Loading board

42‧‧‧Connecting Department

421‧‧‧Perforation

422‧‧‧Limited holes

423‧‧‧Arc groove

5‧‧‧Torque adjustment structure

51‧‧‧ Limit gasket

511‧‧‧Limited

512‧‧‧Positioning holes

52‧‧‧Torque spring

521‧‧‧Flex Department

5211‧‧‧ channel

522‧‧‧Internal Department

C‧‧‧ center axis

R‧‧‧ axis

200‧‧‧ screen (eg touch screen)

1 is a perspective view of a screen supporting device of the present invention.

2 is a partially exploded perspective view of the screen support device of the present invention.

3 is a partial cross-sectional view showing the screen supporting device of the present invention when the carrier is not pressed.

4 is a partial cross-sectional view showing the screen supporting device of the present invention when the carrier is pressed.

Figure 5 is a partial cross-sectional view showing the screen supporting device of the present invention when the carrier member is pressed by the other direction.

Figure 6 is a perspective view of the screen support device of the present invention when folded.

Figure 7 is a partial cross-sectional view showing another embodiment of the screen supporting device of the present invention.

Referring to FIG. 1 and FIG. 2, an embodiment of the present invention is a screen supporting device 100 for carrying a screen 200 (eg, a touch screen). The screen support device 100 includes a base 1, a bracket module 2, two hinge structures 3, a carrier member 4, and a torque adjustment structure 5.

Hereinafter, the components of the screen supporting device 100 will be described in terms of structure and connection relationship, and then the operation of the screen supporting device 100 and the related use state will be described.

The base 1 is disposed on a working surface (eg, a table top), and opposite ends of the bracket module 2 are defined as a bottom end portion and a top end portion, respectively, and the bottom end portion of the bracket module 2 A pivot axis R is pivoted to one end of the base 1 (such as the lower left end in FIG. 1 ), and the top end portion of the bracket module 2 is pivotally disposed on the two pivot structures 3 , the carrier 4 and the torsion adjusting structure 5 .

Further, the bracket module 2 has a main body rod 21 having a substantially H shape, two sets of four links 22, and two pivoting units 23 having torsion springs. The above two sets of four links 22 Separately disposed on opposite sides of the main body rod 21 (such as the left side and the right side in FIG. 1), and the bottom end portion of the main body rod 21 and the bottom end portion of the two sets of four links 22 pass through the pivoting unit 23 along the rotating shaft The wire R is pivoted on the base 1 so that the bracket module 2 can pivot relative to the base 1 with the axis of rotation R as an axis.

It should be noted that since the above-mentioned bracket module 2 and its pivotal relationship with the base 1 are not the improvement points of the present invention, the detailed structure of the present embodiment will not be described in detail. In other words, the above-mentioned four-bar linkage 22 can adopt a parallel four-link set or a non-parallel four-link set according to the designer's requirements, which is not limited herein.

Each of the pivot structures 3 is pivotally disposed on opposite sides of the top end portion of the bracket module 2 (such as the left side and the right side of the top end in FIG. 1 ). Since the two pivot structures 3 are substantially the same, the following drawings only An illustration of one of the pivot structures 3 is illustrated.

Further, referring to FIG. 2 to FIG. 4 , each pivot structure 3 includes a shaft 31 , a washer set 32 and a nut 33 . The shaft 31 has a non-circular cross section (corresponding to opposite sides of the cylinder). It is flattened along its long axis direction, and the long axis direction of the shaft 31 is defined as a central axis C.

The two axial rods 31 are respectively disposed on opposite sides of the top end portion of the bracket module 2, that is, the top end portion of the main body rod 21 overlaps with the top ends of the two sets of four links 22, and the two The central axes C defined by the respective shafts 31 overlap each other, and the central axis C is parallel to the rotational axis R.

In more detail, the top end portion of each of the four link groups 22 is formed with a positioning hole 221 (see FIG. 2) which is non-circular and has an outer shape corresponding to the cross section of the shaft 31, and each of the shafts 31 is disposed in each of the above. The positioning holes 221 of the four link sets 22 are such that each of the shafts 31 can be supported by the bracket module 2.

The two washer sets 32 each have a plurality of washers and are respectively sleeved on the two shafts 31 along the central axis C, and are screwed to the ends of the shafts 31 by nuts 33. Since the type of the washer of the above-mentioned washer set 32 can be adjusted according to the designer's needs, it will not be described here, but it should be particularly noted that each washer set 32 has a stop washer 321 The stopper washer 321 has a single body 3211 and a stopper piece 3212 which is bent and extended from the sheet body 3211, and the sheet body 3211 is formed with a positioning hole 3213 corresponding to the cross section of the shaft 31 at a substantially central portion. The positioning holes 3213 of the two stopper washers 321 respectively sleeve the two shafts 31 along the central axis C, thereby maintaining the relative positions of the stopper washers 321 and the shafts 31.

The carrier member 4 has a plate shape and has a carrier plate 41 and two connecting portions 42 for mounting the screen 200 to achieve the function of carrying the screen 200. The two connecting portions 42 are respectively formed by bending and extending from opposite sides of the bottom end of the carrier plate 41.

Further, the two connecting portions 42 are formed with a through hole 421 and a limiting hole 422 at positions facing each other, and each of the connecting portions 42 is recessed to form an arcuate groove 423 at an end edge equidistant from the through hole 421 thereof. The through holes 421 of the two connecting portions 42 are respectively sleeved on the two axes 31 along the central axis C, so that the carrier 4 can pivot relative to the shaft 31 with the central axis C as an axis.

More specifically, the two connecting portions 42 are located inside the two stopper washers 321 and abut against the two stopper washers 321 , respectively. The blocking pieces 3212 of the two stopper washers 321 are respectively received in the two circular arc grooves 423, so that when the carrier 4 is pivoted, the opposite two of the circular arc grooves 423 are abutted through the blocking piece 3212. The end wall, in turn, limits the pivoting angle of the carrier 4. That is to say, the angle at which the carrier 4 can pivot is substantially the angle of the arc angle of the circular arc groove 423.

The torsion adjusting structure 5 includes two limiting spacers 51 and two torsion springs 52 respectively matched with the two limiting spacers 51. Each of the limiting spacers 51 is provided with a limiting portion 511 and a positioning hole 512 which is non-circular and has an outer shape corresponding to the cross section of the shaft 31. Further, the limiting portion 511 is a notch formed by the end edge of the limiting spacer 51, but the shape of the through hole is not excluded, and the positioning hole 512 is formed at a substantially central portion of the limiting spacer 51. .

Each of the torsion springs 52 has a resilient portion 521 formed by a spiral metal and opposite ends of the self-elastic portion 521 (such as the lower left rear end and the lower right front end in FIG. 3) The two insertion portions 522 are formed to extend away from each other. The inner space surrounded by the elastic portion 521 is defined by a channel 5211. The cross-sectional shapes of the two insertion portions 522 respectively correspond to the limiting hole 422 of the carrier 4 and the limiting portion 511 of the limiting pad 51.

The two torsion springs 52 are respectively sleeved on the two axial rods 31 along the central axis C by the passages 5211 of the elastic portion 521 . One of the insertion portions 522 of each of the torsion springs 52 is inserted into the limiting hole 422 of the carrier 4 . The positioning holes 512 of the two limiting spacers 51 are respectively sleeved on the two shafts 31, and the other insertion portion 522 of each of the torsion springs 52 is inserted into the limiting portion 511 of the limiting spacer 51. The insertion portion 522 of the torsion spring 52 does not slide out of the stopper portion 511 in the form of a notch. Furthermore, each of the torsion springs 52 and their associated limit spacers 51 are located inside the adjacent connecting portion 42 and sandwiched between the two washers of the washer set 32.

Therefore, when the carrier 4 is pivoted by the force, the shaft 31 and the limiting spacer 51 sleeved thereon are kept stationary, so that the relative positions of the two insertion portions 522 of the torsion spring 52 are generated. The change causes the elastic portion 521 to be twisted by the two insertion portions 522 to provide an additional torque of the carrier 4. In other words, the positioning hole 512 having a non-circular cross section of the limiting spacer 51 is sleeved on the shaft 31 having a non-circular cross section, and is held by the limiting spacer 51 sleeved on the shaft 31. The insertion portion 522 of the torsion spring 52 inserted in the limiting portion 511 of the limiting spacer 51 provides a limiting action, and in order to resist the pivoting of the carrier 4, the elastic portion 521 is twisted by the two insertion portions 522. The additional torque described above is provided to the carrier 4.

In more detail, the elastic portion 521 of the torsion spring 52 will provide different additional torque according to the degree of twist of the two side insertion portions 522, so that the additional torque is in a changeable mode, so that the carrier 4 can be different. When the force is pressed, the self-torsion spring 52 simultaneously obtains a corresponding additional torque, and can be stopped at any position. For example, if the path extending in the spiral direction of the spiral elastic portion 51 is defined as a virtual extension path, as shown in FIG. 3 to FIG. 4, when inserted into the limiting hole 422 of the carrier 4 The insertion portion 522 of the torsion spring 52 faces the virtual extension path When one side is twisted (corresponding to the rotation of the carrier 4 away from the user), the elastic portion 521 of the torsion spring 52 will be tightened, thereby providing a large torque of the carrier 4. As shown in FIG. 3, as shown in FIG. 5, when the insertion portion 522 of the torsion spring 52 inserted in the limiting hole 422 of the carrier 4 is twisted toward the side away from the virtual extension path (corresponding to the carrier 4 facing the user) The direction of rotation, the spring portion 521 of the torsion spring 52 will be released, thereby providing a smaller torque of the carrier 4. Thereby, when the user clicks on the screen 200 with a finger (corresponding to the rotation of the carrier 4 away from the user), since the torsion spring 52 provides a large torque of the carrier 4, the torsion force supported by the screen 200 can be The force against the finger click makes the screen 200 less likely to sway.

In addition, when the user wants to close the screen supporting device 100, the bearing member 4 and the bracket module 2 can be pressed down toward the base 1 to fold the screen supporting device 100 (as shown in FIG. 6), thereby providing different operation modes of the user. . If the screen support device 100 is to be adjusted from the position of FIG. 6 to the position of FIG. 1, the user must apply force to the screen 200 to rotate the carrier 4 toward the user, since the torsion spring 52 provides the carrier. 4 The smaller torque allows the user to adjust the position of the screen 200 in a relatively labor-saving manner.

Incidentally, in the present embodiment, each of the washer sets 32 also has three raised washers 322 (FIG. 2), and the raised washers 322 are disposed on a side of the limiting spacer 51 away from the elastic portion 521, and The opposite sides of the protruding washers 322 abut against the limiting washer 51 and the nut 33 respectively. Therefore, the protruding washer 322 can be different according to the degree of pressing (for example, the force of the nut 33 locked to the shaft 31 is different), and the protruding washer 322 and its adjacent limiting spacer can be The contact area of 51 is varied to provide different torque of the carrier 4.

In addition, as shown in FIG. 7, the washer set 32 can also omit the above-mentioned protruding washer 322, thereby being screwed to the end of the shaft 31 through the nut 33, and according to the nut 33 and the limiting spacer 51. The degree of tension is different, and the contact area of the nut 33 and its adjacent limit pad 51 can be changed to provide different torque of the carrier 4.

[Possible effects of embodiments of the present invention]

According to an embodiment of the invention, the above-mentioned screen supporting device is provided with a torsion adjusting structure, and is provided by a torsion spring when the bearing member is pivoted by the cooperation between the torsion spring, the bearing member and the limiting spacer. The additional torque that can be changed by the carrier allows the carrier to obtain a corresponding additional torque from the torsion spring while being subjected to different forces, and can be stopped at any position.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent variations and modifications of the scope of the invention are intended to be within the scope of the invention.

100‧‧‧Screen support device

4‧‧‧ Carrier

42‧‧‧Connecting Department

422‧‧‧Limited holes

5‧‧‧Torque adjustment structure

51‧‧‧ Limit gasket

511‧‧‧Limited

52‧‧‧Torque spring

521‧‧‧Flex Department

522‧‧‧Internal Department

C‧‧‧ center axis

Claims (9)

A screen supporting device includes: a base; a bracket module, wherein opposite end portions are respectively defined as a bottom end portion and a top end portion, the bottom end portion is pivotally disposed on the base along a rotation axis; a hinge structure The pivot structure is disposed at a top end of the bracket module, and the pivot structure includes: a shaft that is disposed at a top end portion of the bracket module, the shaft has a non-circular cross section, and the shaft is long The axis direction is defined as a central axis, the central axis is parallel to the axis of rotation; a carrier member is configured to carry a touch screen, and the carrier member is formed with a through hole and a limiting hole, and the through hole of the carrier member is sleeved On the shaft, and the carrier can pivot relative to the shaft with the central axis as an axis; and a torque adjustment structure, comprising: a limiting spacer, which is provided with a limiting portion and a non-representative portion a circular and external shape corresponding to the positioning hole of the shaft section, the positioning hole of the limiting spacer is sleeved on the shaft; and a torsion spring having a resilient portion formed by a spiral metal and the elastic force Two insertion portions formed at opposite ends of the portion, the elastic portion is spirally wrapped The inner space is defined as a channel, and the passage of the elastic portion is sleeved on the shaft, and the cross-sectional shapes of the two insertion portions respectively correspond to the limiting hole of the carrier and the limiting portion of the limiting spacer, And the two insertion portions are respectively inserted into the limiting hole of the carrier and the limiting portion of the limiting spacer, so that the two insertion portions and the limiting hole and the limiting portion are inserted therein The relative position of the limiting spacer is fixed; wherein the positioning hole of the limiting spacer is non-circular, the positioning hole is sleeved on the shaft after the non-circular cross section, and the limiting spacer sleeved on the shaft is used Keeping it still, the twist on the limit portion of the limit pad The insertion portion of the force spring provides a limiting function, and in order to resist the pivoting of the carrier member, the elastic portion is twisted by the two insertion portions to provide an additional torque of the carrier member; wherein the elastic portion of the spiral portion The path extending from the both ends in the spiral direction is defined as a virtual extension path; when the touch screen is clicked, the insertion portion of the torsion spring inserted in the limiting hole of the carrier faces the virtual extension path When one side is twisted, the elastic portion of the torsion spring is tightened to provide a large torque of the carrier; when the carrier and the bracket module are pressed toward the base, the carrier is inserted into the carrier When the insertion portion of the torsion spring of the position hole is twisted toward the side away from the virtual extension path, the elastic portion of the torsion spring is released to provide a small torque of the carrier. The screen supporting device of claim 1, wherein the carrier has a carrier plate and a connecting portion bent from the carrier plate, the carrier plate is configured to carry the touch screen, and the carrier is perforated And a limiting hole is formed on the connecting portion. The screen support device of claim 2, further comprising a washer set sleeved on the shaft, the washer set having a stop washer having a stop piece, the stop washer Forming a positioning hole corresponding to the cross section of the shaft, and the positioning hole of the stopping washer is sleeved on the shaft; the connecting portion is recessed at an edge of an equidistant distance from the through hole thereof to form a circular arc groove. The chip space is placed in the circular arc groove so that the angle at which the carrier can pivot is substantially the angle of the arc center angle of the circular arc groove. The screen support device of claim 1, wherein the hinge structure has a nut, and the nut is screwed to the end of the shaft, and is forced between the nut and the limit pad. To the extent that the contact area of the nut and its adjacent spacer is changed to provide different torque of the carrier. The screen support device of claim 4, further comprising a washer set sleeved on the shaft, the washer set having a plurality of raised washers, the raised washers being disposed away from the limit spacer One side of the elastic portion abuts against the limiting spacer, and according to the extent to which the protruding washer is forced, the contact area of the protruding washer and the adjacent limiting spacer is changed to Provide different torque to the carrier. The screen supporting device of claim 5, wherein the protruding washers are located between the nut and the limiting spacer, and the nut changes the convex according to a force of the screw locking on the shaft The extent to which the gasket is forced. The screen supporting device of claim 1, wherein the bracket module has a main body rod, a set of four links and a pivoting unit, the set of four links are disposed on one side of the main body rod, and the main body The bottom end portion of the rod and the bottom end portion of the set of four links are pivotally disposed on the base along the rotating axis through the pivoting unit, so that the bracket module can pivot relative to the base with the axis of rotation turn. The screen supporting device of claim 1, wherein the limiting portion of the limiting spacer is formed by recessing the end edge of the limiting spacer. The screen supporting device according to any one of claims 1 to 8, wherein a top end portion of the bracket module is formed with a positioning hole that is non-circular and has an outer shape corresponding to a cross section of the shaft, and the shaft is worn. The positioning hole is disposed at a top end of the bracket module, so that the shaft can be supported by the bracket module.