CN201420800Y - Two-section torsion pivot device - Google Patents

Abstract

A two-section torsion pivot device mainly comprises a shaft body, a base and a torsion spring, wherein the shaft body is combined with the base and is provided with a shaft part; the shaft part is provided with a pipe spring frame shaft sleeve, and two side ends of the shaft sleeve respectively extend outwards to form a first lug and a second lug; in addition, the pipe spring frame is fixedly connected with a bracket, and two side ends of the shaft sleeve are respectively provided with a torsion sleeve; each torsion sleeve extends out of a contact piece towards the two side ends of the shaft sleeve; each contact piece is respectively interfered with the first lug and the second lug. Therefore, the rotation torsion force of the hinge is smaller before the hinge rotates to the vertical angle from the closing position, so that the screen part of the folding electronic equipment has a stronger supporting function after being opened to a working angle, has stronger resistance before being closed during closing so as to prevent collision, and has a limiting function of the maximum opening angle so as to prevent the screen part from being excessively opened.

Description

Two-stage torque hub

technical field

The utility model relates to a folding electronic equipment connection device, in particular to a two-stage torsion hinge.

Background technique

In a foldable electronic device, such as a notebook computer, a hinge must be used to connect a screen portion and a keyboard body, so that the screen portion can be opened or closed by rotating relative to the keyboard body around the hinge.

The rotational torque provided by the general hinge is fixed at any opening angle, that is to say, the user must use the same force to rotate the screen. If the rotational torque is too large, it will be difficult to open; if the rotational torque is too small, the opened screen will easily fall down, and it will easily collide when closed.

In particular, due to the evolution of the computer operating system, it is a possible trend in the future to directly install a touch-sensitive display screen in the notebook computer to facilitate the operation of the user. Therefore, it is necessary to create a two-stage torsion hinge, so that when the screen is in the open operation position, there is a large supporting force so that the user will not shake or fall when operating the touch screen, so as to cooperate with this future trends.

In the previous case of Taiwan's new patent M265898 "hinge device", a two-stage torsion hinge device is provided. The previous case discloses a hinge that can be installed on a notebook computer, and can have the function of opening the screen in two stages. The interlinked slot, the pivot combined with the screen of the notebook computer, an extension part is set at the opposite joint hole, and the first pipe reed, the sleeve and the second pipe reed are arranged in sequence on the extension part, and the first , The lower side of the second pipe reed is fixed in the embedded groove, the upper side of the first and second pipe reeds is combined in the joint hole, the sleeve is set in the joint hole, and there is a proper tightness between the sleeve and the extension. Arc protrusions are formed on both sides of the cylinder, positioning protrusions are formed on the front end of the first pipe reed side, and positioning protrusions are formed on the end of the second pipe reed side. When in use, the first section opens the screen at an angle of about 45 degrees and It will not cause the main unit to be lifted up, and the second stage can open the screen to an appropriate angle for users to use.

Since this previous proposal is only for the convenience of opening the screen, only a sleeve is set between the two spring frames. Such a design is difficult to meet the demand for greater support force of the touch screen, and at the same time, there is no maximum opening. Angle limited design. This makes it still necessary to improve in order to meet the needs of the touch screen.

Contents of the invention

The purpose of the utility model is to provide a two-stage torsion hinge device, after the screen part of the foldable electronic device is rotated to an approximately vertical angle relative to the keyboard body, the hinge device can provide increased rotational torque to facilitate touch control However, when the screen part is closed to the keyboard body from the maximum opening angle, the hinge device also provides increased rotational torque after exceeding about a vertical angle.

The two-stage torsion hinge device provided by the utility model is further designed with a limiting function of the maximum opening angle to prevent excessive opening of the screen part.

The two-stage torsion hinge device provided by the utility model is installed in a foldable electronic device with a screen and a keyboard body, and is characterized in that it includes:

a base, fixed in the keyboard body;

a shaft body, having a connection section combined with the base and a shaft portion;

A pipe spring frame, which has a shaft sleeve tightly fitted on the shaft and an extension plane; the shaft sleeve forms an axial slit at the intersection with the extension plane; and extends outwards at both ends of the shaft sleeve forming a first protruding piece and a second protruding piece; and, the first protruding piece and the second protruding piece respectively have a first end surface and a second end surface;

a bracket, fixed in the screen part, and connected with the extension plane of the pipe spring frame; and

Two torque sleeves are tightly fit on the shaft, and are respectively adjacent to the two sides of the shaft sleeve, and each of the torque sleeves has an axial slit, and extends toward the two sides of the shaft sleeve A contact piece is produced; each contact piece interferes with the first protruding piece and the second protruding piece respectively, and has a first end surface and a second end surface.

Wherein, the shaft body is provided with a fan-shaped piece at the joint position of the connecting section and the shaft part, and the torque sleeve close to the fan-shaped piece extends from the other side end of the contact piece, which can be rotated between the screen part and the keyboard body. The arc sheet that forms a stop with the fan-shaped sheet at the position of the maximum opening angle.

Wherein, the midpoint position of the shaft sleeve axially forms a slit, and the slit has at least one end; and a protruding post that can resist the end at the position where the screen portion and the keyboard body rotate to the maximum opening angle. , protruding from the surface of the shaft portion and extending into the slot.

Wherein, the notch of the shaft sleeve extends from the end to the edge of the notch of the shaft sleeve.

A two-stage torsion hinge installed in a foldable electronic device with a screen and a keyboard body, characterized in that it includes:

a base, fixed in the keyboard body;

a shaft body, having a connection section combined with the base and a shaft portion;

A pipe spring frame, which has a sleeve tightly fitted on the shaft and an extension plane; the sleeve forms an axial slit at the intersection with the extension plane; the axial midpoint of the sleeve forms a slit , the groove extends and cuts the bushing into two sections; and extends outwards at both ends of the bushing to form a first protruding piece and a second protruding piece; and the first protruding piece and the second protruding piece are respectively having a first end surface and a second end surface;

a bracket, fixed in the screen part, and connected with the extension plane of the pipe spring frame; and

Two torque sleeves are tightly fit on the shaft, and are respectively adjacent to the two sides of the shaft sleeve, and each of the torque sleeves has an axial slit, and extends toward the two sides of the shaft sleeve A contact piece is produced; each contact piece interferes with the first protruding piece and the second protruding piece respectively, and has a first end surface and a second end surface.

Wherein, the shaft body is provided with a fan-shaped piece at the joint position of the connecting section and the shaft part, and the torque sleeve close to the fan-shaped piece extends from the opposite end of the contact piece to a position where the keyboard body rotates to the maximum opening angle. An arc piece that forms a stop with the sector piece.

Before the screen portion of the foldable electronic device rotates from the closed position to approximately perpendicular to the keyboard body, only the shaft sleeve rotates relative to the shaft portion, so that the rotational torque of the hinge is small; after that, the shaft sleeve The first end faces of the first and second lugs are in contact with the first end faces of the contact pieces of the two torque sleeves, so that the bushing and the two torque sleeves rotate relative to the shaft at the same time, so that the rotational torque of the hinge Increase until the screen portion and the keyboard body rotate to the maximum opening angle;

Before the screen part rotates from the maximum opening angle to approximately perpendicular to the keyboard body, the first end surfaces of the first and second protruding pieces of the shaft sleeve are respectively separated from the first end surfaces of the contact pieces of the two torque sleeves , only the shaft sleeve rotates relative to the shaft, so that the rotational torque of the hinge is small; after that, the second end surfaces of the first and second lugs of the shaft sleeve are respectively connected with the second ends of the contact pieces of the two torque sleeves. The end faces contact, so that the shaft sleeve and the two torque sleeves rotate relative to the shaft at the same time, so that the rotational torque of the hinge increases, until the screen and the keyboard body rotate to the closed position, and can reach two maximum Turn on the angle limit function.

Hereinafter, the structure and use effects of the present utility model will be described in detail according to the embodiments shown in the drawings.

Description of drawings

Fig. 1 shows the schematic diagram of the utility model installed in the foldable electronic equipment,

Fig. 2 shows the combination diagram of the first embodiment of the utility model,

Fig. 3 shows the exploded view of the first embodiment of the utility model,

Fig. 4 to Fig. 8 represent the action diagram of the first embodiment of the utility model,

Fig. 9 shows another perspective view of the first embodiment of the utility model, which is located in the closed position,

Fig. 10 shows another perspective view of the first embodiment of the utility model, which is located at the maximum open position,

Fig. 11 shows the opening torque change curve of the first embodiment of the utility model,

Fig. 12 shows the closing torsion change curve diagram of the first embodiment of the utility model,

Fig. 13 shows the exploded view of the second embodiment of the utility model,

Fig. 14 shows another perspective view of the second embodiment of the utility model, which is located at the maximum open position,

Fig. 15 shows a curve diagram of opening torque variation of the second embodiment of the present invention.

Detailed ways

Referring to Fig. 1, a two-stage torsion hinge 1 provided by the present invention is installed in a foldable electronic device 2 having a screen part 21 and a keyboard body 22, so that the screen part 21 is opposite to the keyboard body After the 22 is rotated to an approximately vertical angle, the hinge 1 can provide increased rotational torque to facilitate the operation of the touch screen; At this time, the hinge 1 also provides increased rotational torque after exceeding about a vertical angle. Different torsion forces are used to form a two-stage torsion design.

Please refer to Fig. 2 and Fig. 3 for the first embodiment of the present utility model. The two-stage torsion hinge device 1 mainly consists of a base 11, a shaft body 12, a pipe spring frame 13, a bracket 14, and two torsion sleeves. 15 and a stud 16 constitute.

The base 11 is fixed in the keyboard body 22, and is combined with the connecting section 121 of the shaft body 12 through a non-circular hole 111; Position the sector piece 123.

The pipe spring frame 13 has a shaft sleeve 131 tightly fitted on the shaft portion 122 and an extension plane 132; the shaft sleeve 131 forms an axial slit 133 at the intersection with the extension plane 132; Respectively extend outward to form the first protruding piece 134 and the second protruding piece 135; again, the first protruding piece 134134 and the second protruding piece 135 have a first end surface 135a and a second end surface 135b respectively (the first protruding piece 134134 and the second protruding piece 135b The two tabs 135 are the same, only 135a and 135b are indicated). In addition, the bracket 14 is fixed in the screen part 21 and connected with the extension plane 132 of the pipe spring frame 13 .

The two torque sleeves 15 are tightly fit on the shaft portion 122, and are respectively adjacent to the two sides of the shaft sleeve 131, and each of the torque sleeves 15 has an axial slit 151, and the two sides of the shaft sleeve 131 have A contact piece 152 extends from the side end; each contact piece 152 interferes with the first protruding piece 134 and the second protruding piece 135 respectively, and has a first end surface 152 a and a second end surface 152 b.

In addition, an arc piece 153 extends from the other end of the torque sleeve 15 close to the sector piece 123 of the shaft body 12 opposite to the contact piece 152 . When the screen portion 21 and the keyboard body 22 are rotated to the maximum opening angle, the arc piece 153 and the sector piece 123 form a stopper to provide a function of limiting the maximum opening angle.

In the present invention, a slot 136 is formed at the axial midpoint of the shaft sleeve 131 , and the slot 136 has at least one end portion 137 ; the slot 136 extends from the end portion 137 to the edge of the cutout 133 of the shaft sleeve 131 . Cooperating with the slot 136 , a post 16 protrudes from the surface of the shaft portion 122 , and the post 16 extends into the slot 136 . When the screen portion 21 and the keyboard body 22 rotate to a maximum opening angle, the stud 16 abuts against the end portion 137 .

In Fig. 4 to Fig. 8, it is the action of the two-stage torsion hinge device 1 provided by the present invention. In FIG. 4, the screen portion 21 of the foldable electronic device 2 is closed on the keyboard body 22. At this time, the two-stage torsion hinge 1 is shown in FIG. The first end surface 135 a is not in contact with the first end surface 152 a of the contact piece 152 . When the screen portion 21 is rotated from the closed position to approximately perpendicular to the keyboard body 22 , only the shaft sleeve 131 rotates relative to the shaft portion 122 , so that the rotational torque of the hinge is relatively small.

As shown in the figure, when the screen portion 21 is rotated to approximately a perpendicular angle with the keyboard body 22, the first end surfaces 135a of the first and second protruding pieces 134 and 135 of the shaft sleeve 131 are in contact with the two torque sleeves 15 respectively. The first end surface 152a of the contact piece 152 contacts, so that the shaft sleeve 131 and the two torque sleeves 15 rotate relative to the shaft portion 122 at the same time, so that the rotational torque of the hinge increases until the screen portion 21 and the keyboard body 22 rotate to the maximum opening angle (eg 135°), as shown in FIG. 6 and FIG. 10 , at this time, the arc piece 153 and the sector piece 123 form a stopper, and the protruding post 16 abuts against the end portion 137 .

FIG. 11 shows the variation of the rotational torque of the relative opening angle of the screen portion 21 and the keyboard body 22 when the foldable electronic device is opened. Wherein P represents the torque provided by the shaft sleeve 131 , and B represents the torque provided by a torque sleeve 15 . Therefore, after opening to about a vertical angle, since the shaft sleeve 131 and the two torque sleeves 15 act simultaneously, the torque increases to P+B+B. This design will make the screen part 21 require less force before it rotates to the vertical angle, but it will have a stronger supporting force after it is opened to the working angle, so as to facilitate the easy operation of the touch screen.

Similarly, when the screen portion 21 rotates from the maximum opening angle (as shown in FIG. 6 ) to approximately perpendicular to the keyboard body 22, the first end surfaces 135a of the first and second protrusions 134 and 135 of the bushing 131 are respectively aligned with the two sides. The first end surface 152a of the contact piece 152 of the torque sleeve 15 is separated, and only the sleeve 15 rotates relative to the shaft portion 122, so that the rotational torque of the hinge is relatively small.

After the screen portion 21 is rotated to approximately a vertical angle with the keyboard body 22 (as shown in FIG. 7 ), the second end faces 135b of the first and second lugs 134 and 135 of the shaft sleeve 131 are respectively in contact with the contact pieces of the two torque sleeves 15. The second end surface 152b of 152 contacts, so that the shaft sleeve 131 and the two torque sleeves 15 rotate relative to the shaft part 122 at the same time, so that the rotational torque of the hinge is increased, until the screen part 21 and the keyboard body 22 are rotated to the closed position, as shown in the figure 8, the same as in Figure 4.

Same as the previous description of FIG. 11 , FIG. 12 shows the variation of the rotational torque of the relative closing angle of the screen portion 21 and the keyboard body 22 when the foldable electronic device is closed. Wherein P represents the torque provided by the shaft sleeve 131 , and B represents the torque provided by a torque sleeve 15 . Therefore, after closing to about a vertical angle, since the shaft sleeve 131 and the two torque sleeves 15 act simultaneously, the torque increases as P+B+B. This design will make the screen part 21 rotate to a vertical angle before the required force is small, but close to close, there is a strong supporting force to prevent the screen part 21 from colliding with the keyboard body 22 .

Referring to FIG. 13 , it is a second embodiment of the present invention, which is substantially the same as FIG. 3 , but the slot 136 formed at the axial midpoint of the shaft sleeve 131 of the pipe spring holder 13 extends to cut the shaft sleeve 131 into two sections. Referring to Fig. 14 (similar to Fig. 10 ), a protruding block 138 is formed on the inner surface of one section of the opposite notch 136. When the screen part 21 and the keyboard body 22 rotate to the maximum opening angle, the protruding block 138 will The column 16 resists the protruding blocking piece 138 .

In the second embodiment of the present utility model, the shaft sleeve 131 is cut into two independent parts, which can have different torques P1 and P2 respectively, so when the foldable electronic device shown in Figure 15 is opened, the screen part 21 and the The rotational torque of the keyboard body 22 relative to the opening angle changes, wherein P1 and P2 represent the torque provided by two sections of the shaft sleeve 131 , and B represents the torque provided by a torque sleeve 15 . The torque in the first section is P1+P2, and the torque in the second section increases to P1+P2+B+B. This also has the same two-stage torsion function as the first embodiment.

The two-stage torsion hinge device provided by the utility model will enable the screen part of the folding electronic device to have a stronger support function after it is opened to the working angle, and when it is closed, it will also have a stronger resistance before closing to prevent collision.

Claims (6)

1. a two-part torsion pivot device is installed in the folding-type electronic device with a screen portion and a keyboard body, it is characterized in that, comprising:

One base is fixed in this keyboard body;

One axis body has the linkage section and the axial region that combine with this base;

One spoon rack has an axle sleeve and that closely is sleeved on this axial region and extends the plane; This axle sleeve is forming an axial cut-outs with this extension plane symphyses; And stretch out respectively in this axle sleeve two side ends and to form first lug and second lug; Again, this first lug and second lug have first end face and second end face respectively;

One support is fixed in this screen portion, and links with the extension plane of this spoon rack; And

Two Torque sleeves closely are sleeved on this axial region, and respectively in abutting connection with being arranged at this axle sleeve two side ends, and each this Torque sleeve has an axial cut-outs, and extend a contact disk to the two side ends direction of this axle sleeve; Each contact disk respectively with first lug and the second lug interference, and have first end face and second end face.

2. according to the described two-part torsion of claim 1 pivot device, it is characterized in that, axis body is provided with a fanning strip at this linkage section and this axial region delivery position, and extends an arc sheet that can rotate to maximum opening angle position and this fanning strip formation backstop in this screen portion and this keyboard body near connect another side of contact of the Torque sleeve of this fanning strip.

3. according to the described two-part torsion of claim 2 pivot device, it is characterized in that the axial point midway of this axle sleeve forms a grooving, this grooving has an end at least; And one can rotate to maximum opening angle position in this screen portion and this keyboard body and keep out protruded stigma in this end, and this axial region surface is outstanding and stretch in this grooving certainly.

4. according to the described two-part torsion of claim 2 pivot device, it is characterized in that the grooving of this axle sleeve extends to the notching edge of this axle sleeve from the end.

5. a two-part torsion pivot device is installed in the folding-type electronic device with a screen portion and a keyboard body, it is characterized in that, comprising:

One base is fixed in this keyboard body;

One axis body has the linkage section and the axial region that combine with this base;

One spoon rack has an axle sleeve and that closely is sleeved on this axial region and extends the plane; This axle sleeve is forming an axial cut-outs with this extension plane symphyses; The axial point midway of this axle sleeve forms a grooving, and this grooving extension is cut into two sections with this axle sleeve; And stretch out respectively in this axle sleeve two side ends and to form first lug and second lug; Again, this first lug and second lug have first end face and second end face respectively;

One support is fixed in this screen portion, and links with the extension plane of this spoon rack; And

Two Torque sleeves closely are sleeved on this axial region, and respectively in abutting connection with being arranged at this axle sleeve two side ends, and each this Torque sleeve has an axial cut-outs, and extend a contact disk to the two side ends direction of this axle sleeve; Each contact disk respectively with first lug and the second lug interference, and have first end face and second end face.

6. according to the described two-part torsion of claim 5 pivot device, it is characterized in that, axis body is provided with a fanning strip at this linkage section and this axial region delivery position, and extends one and rotate to the arc sheet of maximum opening angle position and this fanning strip formation backstop in this keyboard body near connect another side of contact of the Torque sleeve of this fanning strip.

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