JP2016037979A - Tilt hinge and notebook personal computer using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tilt hinge for a notebook personal computer using in particular a touch panel and a notebook personal computer using the tilt hinge capable of generating a stronger friction torque within an opening or closing angle range for performing a prescribed touch operation.SOLUTION: This invention relates to a tilt hinge D comprising a fitting member 1 to be fixed to the first casing; a supporting member 3 to be fixed to the second casing; a hinge shaft 2 rotatably connecting the supporting member 3 to a bearing plate part 1b of the fitting member 1; and rotation control means 4 for the supporting member 3 arranged between the fitting member 1 and the supporting member 3 through the hinge shaft 2. The rotation control means 4 is constituted by first rotation control means 4A for controlling a rotation torque within a range of prescribed relative opening or closing angle between the supporting member 3 and the fitting member 1 and second rotation control means 4B for controlling the rotation torque at an opening or closing angle other than the prescribed opening or closing angle range of the supporting member 3 and the fitting member 1.SELECTED DRAWING: Figure 4

Description

  The present invention, for example, connects a first housing having a keyboard portion such as a notebook computer and a second housing having a display portion so as to be relatively openable and closable, and the display portion simultaneously has a touch operation function. The present invention relates to a tilt hinge that is suitable for use with a notebook computer and a notebook computer using the tilt hinge.

  2. Description of the Related Art Conventionally, a tilt hinge for a notebook personal computer is provided with torque control means as described in Patent Document 1 below, and the second housing is naturally dropped with respect to the first housing below a predetermined opening / closing angle. The opening / closing angle equal to or larger than the natural fall angle has a function of stopping and holding the second housing in a free stop with respect to the first housing.

  That is, the conventionally known tilt hinge for a notebook personal computer described in Patent Document 1 described below allows the support member that supports the second housing to be rotated via the hinge shaft with respect to the mounting member that is attached to the first housing side. A rotation control means including a cam mechanism, a friction washer, and an elastic means using a plurality of disc springs is provided by connecting the hinge shaft between the attachment member and the support member.

  Accordingly, the pair of cam projections provided on the first cam member constituting the cam mechanism of the rotation control means falls within a predetermined opening / closing angle range where the pair of cam projections falls into the pair of cam recesses constituting the second cam member. In the meantime, since a large friction torque is not created, the support member easily rotates with respect to the attachment member, and the second housing attached to the support member is naturally closed by its own weight. However, when the cam convex portion of the first cam member and the cam convex portion of the second cam member are in pressure contact with each other, the friction torque generated by the friction washer is created when the second casing is in a range greater than the predetermined opening / closing angle range. The second casing can be stopped and held in a free stop with respect to the first casing.

  However, in recent years, it consists of a first housing with a keyboard portion and a second housing with a display portion. In addition to functions that can be operated by normal key operations, touch operations can be performed on the display portion of the second housing. There are notebook computers on the market that can use touch panels.

  In the case of such a notebook personal computer, only with the friction torque generated by the conventionally known tilt hinge rotation control means described in Patent Document 1, the second housing is moved backward by the touch operation with a finger when performing a touch operation. The problem is that it is difficult to perform touch operations because it is pushed and rotated.

JP 2013-249855 A

  The present invention was created in order to solve such problems. In addition to the fact that the friction torque of the tilt hinge having the conventional configuration described above can be created, a second housing such as a notebook computer is used as the first housing. Provided with a tilt hinge and a notebook personal computer using the tilt hinge so that the second housing does not change its angle with respect to the first housing even when a touch operation is performed on the touch panel as a display unit. It's in the center.

  In order to achieve the above object, the present invention provides a mounting member attached to the first housing side, a supporting member attached to the second housing side, and a hinge shaft for rotatably connecting the supporting member to the mounting member. And a rotation control means for the support member provided between the attachment member and the support member via the hinge shaft. The rotation control means is a relative predetermined value between the support member and the attachment member. First rotation control means for controlling rotational torque in a range of opening / closing angles, and second rotation control means for controlling rotational torque in opening / closing angles other than the predetermined opening / closing angle range of the support member and the mounting member. Accordingly, the first rotation control means operates in a predetermined opening / closing angle range of the second casing with respect to the first casing, and the first rotation control means operates outside the predetermined opening / closing angle range. In addition to said rotation control means the second rotation control means, characterized in that is configured to create a stronger torque running.

  According to a second aspect of the present invention, in the tilt hinge according to the first aspect of the present invention, the first rotation control means is disposed on one side of the hinge shaft with the mounting member interposed therebetween. It is characterized in that it is provided on the other side of the hinge shaft across the mounting member.

  According to a third aspect of the invention, in the tilt hinge according to the first aspect of the invention, the hinge shaft is rotatably attached to the attachment member, a support member is attached to one end of the hinge shaft, and the first rotation is performed. Control means is provided between the attachment member and the free end side of the hinge shaft, and the second rotation control means is provided between the attachment member and the support member.

  According to a fourth aspect of the present invention, in the tilt hinge according to the first aspect of the present invention, the mounting member has a mounting base portion and a bearing plate portion raised from the mounting base portion, and is provided in the bearing plate portion. A first mounting member having a tapered deformed bearing hole, a mounting portion attached to the first mounting member, and a second mounting member having a circular bearing hole raised from the mounting portion. Further, a circular small-diameter shaft portion engaged with the deformed bearing hole of the first mounting member is provided at a substantially central portion of the hinge shaft.

  Further, a fifth aspect of the present invention is the tilt hinge according to the first aspect of the present invention, wherein the mounting member has a mounting base portion and a bearing plate portion raised from the mounting base portion, and is provided in the bearing plate portion. A first mounting member having a tapered deformed bearing hole, a second mounting portion having a bearing portion provided with a mounting portion attached to the first mounting member and a circular bearing hole raised from the mounting portion; The hinge shaft is provided with a circular small-diameter shaft portion that is engaged with the deformed bearing hole of the first mounting member at a substantially central portion thereof, and the first rotation control means, A first fixed cam having a first fixed cam portion on one surface portion that is locked to the bearing portion of the second mounting member and that is rotatably inserted through the hinge shaft. And a first rotating cam member having a first rotating cam portion on a side facing the first fixed cam portion, which is rotatably provided with the hinge shaft adjacent to the first fixed cam member. A cam mechanism, a friction washer provided between the first mounting member and the first fixed cam member so as to be rotatable together with the hinge shaft, and the hinge shaft adjacent to the first rotating cam member And a first elastic means attached to the head.

  Furthermore, a sixth aspect of the present invention is the tilt hinge according to the first aspect of the present invention, wherein the mounting member has a mounting base portion and a bearing plate portion raised from the mounting base portion, and is provided in the bearing plate portion. A first mounting member having a tapered deformed bearing hole, a mounting portion attached to the first mounting member, and a second mounting member having a circular bearing hole raised from the mounting portion. The hinge shaft is provided with a circular small-diameter shaft portion engaged with the deformation bearing hole of the first mounting member at a substantially central portion thereof, and the second rotation control means rotates the hinge shaft. A second fixed cam member having a second fixed cam portion provided on one side surface of the first mounting member, the second fixed cam member being inserted into the bearing plate portion of the first mounting member, and adjacent to the second fixed cam member. Previous Adjacent to the second rotating cam member, a second cam mechanism comprising a second rotating cam member provided with a second rotating cam portion on the side of the second fixed cam portion, the rotation of which is constrained by the hinge shaft. And a second elastic means mounted on the hinge shaft.

  Further, according to a seventh aspect of the present invention, in the tilt hinge according to the sixth aspect of the present invention, the second fixed cam portion and the second rotating cam portion have a cam convex portion and a cam concave portion, respectively. The portion and the cam recess are provided concentrically so as to be shifted in the radial direction.

  According to an eighth aspect of the present invention, there is provided a notebook personal computer characterized by using the tilt hinges described in the first to seventh aspects of the present invention.

  Since the present invention is configured as described above, the tilt hinge according to the present invention has a simple structure with a low manufacturing cost. For example, a first housing provided with a keyboard portion such as a notebook personal computer and a touch panel display. When the second housing provided with the display portion is connected so as to be opened and closed, even if the second housing provided with the display portion is opened with respect to the first housing and a touch operation with a finger is performed on the display portion, Since the inclination angle of the second housing relative to the first housing is not changed by the pressure, a tilt hinge or a laptop computer with improved operability can be provided.

1 is a perspective view of a notebook computer with a touch operation function using a tilt hinge according to the present invention. FIG. It is a perspective view of a tilt hinge according to the present invention. The longitudinal cross-sectional view of the tilt hinge shown in FIG. 2 is shown, and the state of the first rotation control means and the second rotation control means when the first housing and the second housing are in the fully closed state is shown. FIG. 3 is an exploded perspective view of the tilt hinge shown in FIG. 2. It is a side view of the 1st attachment member among the attachment members of the tilt hinge shown in FIG. It is a side view of the 2nd attachment member among the attachment members of the tilt hinge shown in FIG. It is a side view of the state which combined the 1st attachment member and the 2nd attachment member of the attachment member of the tilt hinge shown in FIG. It is a side view of the supporting member of the tilt hinge shown in FIG. FIG. 3 is a perspective view of a hinge shaft of the tilt hinge shown in FIG. 2. 2A and 2B show parts constituting the first cam mechanism of the tilt hinge shown in FIG. 2, wherein FIG. 2A is a perspective view of the first rotating cam member, and FIG. 2B is a perspective view of the first fixed cam member. 2 shows components constituting the second cam mechanism of the tilt hinge shown in FIG. 2, wherein (a1) is a perspective view of the second fixed cam member, and (a2) is a perspective view of the second fixed cam member when the viewing direction is changed. It is a figure, (b) It is a perspective view of the 2nd rotation cam member. FIG. 3 is a longitudinal sectional view of the tilt hinge shown in FIG. 2, showing a state in which the first housing and the second housing are at an opening / closing angle of 15 to 120 degrees. FIG. 3 is a longitudinal sectional view of the tilt hinge shown in FIG. 2, showing a state in which the first housing and the second housing are at an opening / closing angle of 120 to 165 degrees. It is explanatory drawing explaining operation | movement of the tilt hinge shown in FIG. 2, (a) is divided and seen from the AA line part of FIG. 3, and is in the fully closed state of the 1st housing | casing and the 2nd housing | casing. The state of a 1st cam mechanism is shown, (b) is divided and seen from the BB line part of FIG. 3, and has shown the state of the 2nd cam mechanism. FIG. 3 is an explanatory diagram for explaining the operation of the tilt hinge shown in FIG. 2, wherein (a) shows a state of the first cam mechanism in a state where the second housing is opened from 0 to 15 degrees with respect to the first housing. , (B) shows the state of the second cam mechanism. Both are seen from the same part as FIG. FIG. 3 is an explanatory diagram for explaining the operation of the tilt hinge shown in FIG. 2, wherein (a) shows a state of the first cam mechanism in a state where the second housing is opened to 120 degrees with respect to the first housing; ) Shows the state of the second cam mechanism. Both are seen from the same part as FIG. FIG. 3 is an explanatory diagram for explaining the operation of the tilt hinge shown in FIG. 2, wherein (a) shows a state of the first cam mechanism in a state where the second housing is opened to 165 degrees with respect to the first housing; ) Shows the state of the second cam mechanism. Both are seen from the same part as FIG. FIG. 3 is an explanatory diagram for explaining the operation of the tilt hinge shown in FIG. 2, wherein (a) shows a state of the first cam mechanism in a state where the second housing is opened up to 180 degrees with respect to the first housing; ) Shows the state of the second cam mechanism. Both are seen from the same part as FIG. It is a torque curve figure of the tilt hinge shown in FIG. 2, (a) is a torque curve figure of a 1st rotation control means, (b) is a torque curve figure of a 2nd rotation control means, (c) is a 1st rotation control means. And a combined torque curve diagram of the second rotation control means.

  A preferred embodiment of a tilt hinge according to the present invention will be described with reference to the drawings. The pair of left and right tilt hinges according to the present invention may be used. However, it is possible to use the tilt hinge according to the present invention for one of the pair of left and right tilt hinges and the conventionally known tilt hinge for the other one. It is. The tilt hinge according to the present invention will be described for a notebook personal computer with a touch panel having a touch operation function, but the present invention is not limited to such a notebook personal computer. It can be applied to various products that require similar functions.

  According to the drawing, in FIG. 1, what is indicated by an instruction symbol A is, for example, a notebook personal computer, and what is indicated by an instruction symbol B is a first casing provided with a keyboard portion b on the surface, indicated by an instruction symbol C. The thing is the 2nd housing | casing provided with the display part c using the touch panel panel which has a touch operation function. Although the detailed configuration of the tilt hinges D and D ′ according to the present invention is not shown in the drawing, the second housing C is relatively located with respect to the rear portion of the first housing B as shown by a dotted line in FIG. It is provided to connect to open and close.

  Since these tilt hinges D and D 'have the same configuration and a pair of left and right in the embodiment, only one tilt hinge D will be described below. As shown in FIGS. 2 to 7 and FIGS. 1 to 13, the reference symbol 1 is an attachment member. The mounting member 1 is composed of a first mounting member 1A and a second mounting member 1B which are overlapped with each other. The first mounting member 1A is raised from one end side of a mounting base portion 1a and a central portion of the mounting base portion 1a. The bearing plate portion 1b, and a mounting plate portion 1c provided downward from one end of the mounting base portion 1a. The second mounting member 1B is composed of a mounting portion 1d and a bearing portion 1e configured to rise from the mounting portion 1d, and after the bearing portion 1e is superimposed on the bearing plate portion 1b of the first mounting member 1A. The mounting portion 1d is fixed on the mounting base portion 1a of the first mounting member 1A using screws 1f and 1f. The second mounting member 1B also has a role of reinforcing the first mounting member 1A.

  In particular, as shown in FIGS. 2 to 7, the mounting base portion 1a is provided with mounting holes 1g, 1g... And the mounting plate portion 1c is provided with mounting holes 1h, 1h. By attaching the mounting base portion 1a and the mounting plate portion 1c on the first mounting member 1A side with mounting screws (not shown) using mounting screws (not shown) using 1g, 1g, .. and mounting holes 1h, 1h, The attachment member 1 is configured to be attached to the first housing B side. This attachment method is not limited, and other attachment methods may be used. Further, on the bearing plate portion 1b side, a tapered deformed bearing hole 1i in which a small diameter portion 1n and a large diameter portion 1m are combined, and a rectangular first locking hole 1j positioned below the deformed bearing hole 1i. On the second mounting member 1B side, a bearing hole 1k having a diameter substantially the same as that of the large diameter portion 1m of the first deformation bearing hole 1i, and a second part having a substantially rectangular shape below the bearing hole 1k. A locking hole 1l is provided.

  What is indicated by the reference symbol 2 is a hinge shaft. As shown in FIGS. 4 and 9, the hinge shaft 2 has a flange portion 2b, a circular shaft portion 2c, a first deformed shaft portion 2d, a circular shape, following the deformation mounting shaft portion 2a provided at one end thereof. A small-diameter shaft portion 2e, a second deformation shaft portion 2f, a third deformation shaft portion 2g, and a fourth deformation shaft portion 2h are sequentially provided, and a first male shaft is provided on a part of the circular shaft portion 2c and the first deformation shaft portion 2d. The screw part 2i is provided with a second male screw part 2j on the fourth deformation shaft part 2h. Each deformation shaft portion has a substantially elliptical shape, and the diameters of the circular shaft portion 2c and the first deformation shaft portion 2d are larger than those of the second deformation shaft portion 2f, the third deformation shaft portion 2g, and the fourth deformation shaft portion 2h. It is formed in a large diameter, and the diameter on the short diameter side is formed so as to become shorter from the first deformation shaft portion 2d to the fourth deformation shaft portion 2h. As shown in FIGS. 3 and 12 to 13, the hinge shaft 2 has a circular small-diameter shaft portion 2 e engaged with the small-diameter portion 1 n of the deformed bearing hole 1 i of the first mounting member 1 A, so that the second The deformed shaft portion 2f is rotatably supported in the bearing hole 1k of the second mounting member 1B. Therefore, the hinge shaft 2 is rotatable with respect to the mounting member 1, but is prevented from moving in the axial direction because the circular small-diameter shaft portion 2e is engaged with the small-diameter portion 1n of the deformed bearing hole 1i. Has been.

  Next, the support member 3 is attached to the deformation attachment shaft portion 2 a of the hinge shaft 2. The support member 3 includes an attachment base portion 3a attached to the second housing C and an attachment portion 3b provided by bending the attachment base portion 3a. The hinge shaft 2 is connected to the deformation attachment hole 3c provided in the attachment portion 3b. The deformation mounting shaft portion 2a is inserted and engaged, and is fixed by caulking its exposed end. In addition, this fixing method is not limited to an Example. It may be fixed using other screws. In addition, the support member 3 is configured to be attached to the second casing C with an attachment screw (not shown) using a plurality of attachment holes 3d, 3d,... Provided in the attachment base portion 3a.

  The rotation control means 4 is provided on the left and right with the hinge shaft 2 sandwiched between the bearing plate portion 1b of the first mounting member 1A of the mounting member 1 and the bearing portion 1e of the second mounting member 1B. As shown in FIGS. 2 to 4, the first rotation control means 4 </ b> A is provided on the left side, and the second rotation control means 4 </ b> B is provided on the right side.

  The configuration of the first rotation control means 4A is particularly shown in FIGS. 2 to 4 and FIG. 10 (b). According to the drawing, the first rotation control means 4A is configured such that the second deformation shaft portion 2f of the hinge shaft 2 is inserted and engaged with the deformation insertion hole 5a provided in the central portion axial direction of the second mounting member 1B. A friction washer 5 provided in contact with the bearing 1e and a locking piece 6a provided at one end of the friction washer 5 adjacent to the friction washer 5 are provided on the bearing 1e of the second mounting member 1B. 2 and the first locking hole 1j provided in the bearing plate portion 1b of the first mounting member 1B are inserted and locked, and the hinge shaft 2 is inserted into the circular bearing hole 6b provided in the axial direction of the central portion thereof. 2 A first fixed cam member 6 in which a deformable shaft portion 2f is rotatably inserted and a first fixed cam portion 6c including cam convex portions 6d and 6d and cam concave portions 6e and 6e is provided so as to surround the circular bearing hole 6b. And this first fixed cam portion 6, and the third deformation shaft portion 2 g of the hinge shaft 2 is inserted into and engaged with the deformation insertion hole 7 a provided in the axial direction of the central portion, and the cam convex portion is formed around the deformation insertion hole 7 a. A first rotary cam member 7 comprising a first rotary cam portion 7d comprising cam convex portions 7b, 7b and cam concave portions 7c, 7c opposed to 6d, 6d and cam concave portions 6e, 6e, and the first rotary cam A plurality of elastic members made up of, for example, disc springs, provided by inserting the third deformation shaft portion 2g of the hinge shaft 2 through the circular insertion holes 8a, 8a,. The first elastic means 8 comprising 8b, 8b... And the deformation insertion hole provided in the axial direction of the central portion thereof in contact with the outer one of the elastic members 8b, 8b. Insert the fourth deformation shaft 2h of the hinge shaft 2 through 9a. A presser washer 9 provided in combination, and a first fastening screw that is screwed to a first male screw portion 2i provided on a fourth deformation shaft portion 2h of the hinge shaft 2 adjacent to the presser washer 9. It consists of a nut 10.

  The first fixed cam portion 6c of the first fixed cam member 6 constituting the first cam mechanism 4a and the first rotating cam portion 7d of the first rotating cam member 7 constitute the first cam mechanism 4a for the first fixing. The cam convex portions 6d and 6d of the cam portion 6c are formed to have a width larger than that of the cam convex portions 7b and 7b.

  In addition, the disc spring which comprises each elastic member 8b can change this to a spring washer and other elastic means. Further, the shape and position of each cam projection 6d, 6d, 7b, 7b and each cam recess 6e, 6e, 7c, 7c are the same as those in the embodiment, especially in FIGS. 4 and 10 (a), (b). As shown, the first fixed cam member 6 is provided radially outward from the outer periphery of the circular bearing hole 6b of the first fixed cam member 6 and the deformation insertion hole 7a of the first rotating cam member 7, and as described later, In a state where the casing B is closed with respect to the second casing C, the cam protrusions 6d, 6d, 7b, and 7b fall into the cam recesses 6e, 6e, 7c, and 7c. Therefore, when the second housing C is opened up to 15 degrees with respect to the first housing B, the cam convex portions 6d and 6d of the first fixed cam portion 6c become the cam convex portions 7b of the first rotating cam portion 7d. , 7b, and after that, it is formed and arranged so as to be in a pressure contact state up to an opening / closing angle of 160 degrees.

  The second rotation control means 4B is particularly shown in FIGS. According to the drawing, the second rotation control means 4B is in contact with the bearing plate portion 1b of the first mounting member 1A, has a circular insertion hole 11a in the axial direction of the central portion thereof, and a locking portion 11b protruding from the periphery thereof. Is engaged with the large diameter portion 1m of the deformation bearing hole 1i provided in the bearing plate portion 1b, and the first deformation shaft portion 2d of the hinge shaft 2 is rotatably inserted into the circular insertion hole 11a. A second fixed cam member 11 having a second fixed cam portion 11g composed of an outer cam convex portion 11c and an inner cam convex portion 11d, an outer cam concave portion 11e and an inner cam concave portion 11f on one side surface, and the second fixed cam member 11 The outer cam projection 12b, the inner cam projection 12c, and the outer cam recess 12d are provided on the side facing the second fixed cam portion 11g. And inside A second rotating cam member 12 having a second rotating cam portion 12f formed of a cam recess 12e, and having the first deforming shaft portion 2d of the hinge shaft 2 inserted and engaged in the deforming insertion hole 12a; A plurality of the rotation cam members 12 are provided adjacent to the rotary cam member 12 and the first deformation shaft portion 2d of the hinge shaft 2 is inserted through the circular insertion holes 13a, 13a,. For example, the second elastic means 13 made of elastic members 13b, 13b... Made of a disc spring and the outer side of the elastic members 13b, 13b. The first washer shaft 2d of the hinge shaft 2 is inserted into and engaged with the deformed insertion hole 14a, and the second male screw portion 2j of the hinge shaft 2 is adjacent to the presser washer 14 and adjacent to the presser washer 14. Screwing It is composed of a second tightening nut 15 made by.

  In particular, as shown in FIGS. 11 (a1) and (a2), the locking portion 11b provided on the second fixed cam member 11 is provided with a curved portion 11h, and the locking portion 11b is connected to the first mounting member. By engaging with the large diameter 1m of the deformed bearing hole 1i provided in the bearing plate portion 1b of 1A, the first deformed shaft portion 2d of the hinge shaft 2 as shown in FIGS. Some bearings. Moreover, the disc spring which comprises each elastic member 8b and 13b can change this to a spring washer and other elastic means. Furthermore, the shape of each outer cam convex portion 11c, inner cam convex portion 11d, outer cam convex portion 12b, inner cam convex portion 12c, each outer cam concave portion 11e, inner cam concave portion 11f, outer cam concave portion 12d, and inner cam concave portion 12e. In the state where the first embodiment B is closed with respect to the second housing C in the embodiment, the first housing B is closed with respect to the second housing C. The outer cam convex portions 11c and the inner cam convex portions 11d and the outer cam convex portions 12b and the inner cam convex portions 12c are arranged in the outer cam concave portions 11e and the inner cam concave portions 11f and the outer cam concave portions 12d and the inner cam concave portions 12e, respectively. Depressed. From this state, when the second housing C is opened to 120 degrees with respect to the first housing B, the outer cam convex portions 11c and the inner cam convex portions 11d are respectively connected to the outer cam convex portions 12b and the inner cam convex portions. 12c is formed and arranged so as to be in pressure contact with an opening / closing angle of 160 degrees.

  The procedure for assembling the tilt hinge D according to the present invention will be described below. In particular, as shown in FIGS. 2 to 4, first, the parts of the second rotation control means 4B, the mounting member 1, and the parts of the first rotation control means 4A are assembled to the hinge shaft 2 in this order, that is, the hinge shaft. The second tightening nut 15 of the second rotation control means 4B is inserted into the female screw hole from the side of the second male screw portion 2j and screwed to the first male screw portion 2i. Rotate to the part 2c side. Next, the presser washer 14, the elastic members 13b of the second elastic means 13, the second rotating cam member 12, and the second fixed cam member 11 are arranged in the order of the fourth deformation shaft portion 2h (second male screw portion 2j). The hinge shaft 2 is inserted from the side, and the locking portion 11b of the second fixed cam member 11 is inserted and locked into the large diameter portion 1m of the deformed bearing hole 1i provided in the bearing plate portion 1b of the first mounting member 1A. Then, the hinge shaft 2 is pushed upward, and the circular small-diameter shaft portion 2e is engaged with the small-diameter portion 1n of the deformed bearing hole 1i, so that the hinge shaft 2 has the circular small-diameter shaft portion 2e of the mounting member 1. The first mounting member 1A is engaged with the small diameter portion 1n of the deformed bearing hole 1i, and is rotatably attached to the first mounting member 1A in a state where movement in the axial direction is restricted.

  Next, when the second tightening nut 15 is tightened, the second rotating cam member 12 and the second fixed cam member 11 are pressed against each other by being pushed by the second elastic means 13, so that the second By adjusting the tightening nut 15, the friction torque necessary for the second rotation control means 4B can be adjusted. This adjustment may be performed after the first rotation control means 4A is assembled as will be described later.

  Next, the second mounting member 1B is mounted on the hinge shaft 2 by inserting the hinge shaft 2 into the bearing hole 1k from the side of the fourth deformed shaft portion 2h (second male screw portion 2j). When the two screws 1f and 1f are fixed to each other while being superposed on 1A, the second deformed shaft portion 2f of the hinge shaft 2 is supported in the bearing hole 1k, and the hinge shaft 2 is restricted in movement in the axial direction by the mounting member 1. It will be attached in a rotatable manner. Next, the hinge shaft 2 is inserted into the deformation insertion hole 5a of the friction washer 5 from the fourth deformation shaft portion 2h side, and the deformation insertion hole 5a is engaged with the second deformation shaft portion 2f of the hinge shaft 2. Let Next, as described above, the third deformation shaft portion 2g of the hinge shaft 2 is rotatably fitted into the circular bearing hole 6b of the first fixed cam member 6, and the locking piece 6a is connected to the second mounting member 1B and the first mounting member. The second engaging hole 1l and the first engaging hole 1j provided in 1A are inserted and engaged. Next, as shown particularly in FIGS. 2 to 4, the first rotation cam member 7, each elastic member 8 b of the first elastic means 8, and the presser washer 9, which are other parts of the first rotation control means 4 </ b> A. The first tightening nut 10 is finally attached to the second male screw portion 2j of the hinge shaft 2 after being attached to the hinge shaft 2. Here, as the first tightening nut 10 is tightened, the first fixed cam member 6 and the first rotating cam member 7 are pressed against each other by the first elastic means 8, and the friction washer 5 Is in a pressure contact state between the bearing portion 1e of the second mounting member 1B and the first fixed cam member 6. In this way, by adjusting the tightening addition / reduction of the first tightening nut 10, the friction torque necessary for the first rotation control means 4A can be adjusted.

  The tilt hinge D assembled as described above is used by attaching the attachment member 1 to the first housing B and the support member 3 to the second housing C as described above. The In such a case, as shown in FIGS. 3 and 14 in particular, when the second housing C is fully closed with respect to the first housing B, the first fixed cam constituting the first rotation control means 4A. The member 6 and the first rotating cam member 7 are in a state where the cam convex portions 6d, 6d, 7b, and 7b are in the cam concave portions 6e, 6e, 7c, and 7c, and a large friction torque is not created. Further, the second fixed cam portion 11g and the second rotation cam portion 12f of the second rotation control means 4B also have the outer cam convex portion 11c, the inner cam convex portion 11d, the outer cam convex portion 12b, and the inner cam convex portion 12c, Each of the outer cam recess 11e, the inner cam recess 11f, the outer cam recess 12d, and the inner cam recess 12e is in a state in which a large friction torque is not created. Therefore, in the fully closed state, neither the first rotation control means 4A nor the second rotation control means 4B generates a large friction torque.

  Next, when the second casing C is opened to 15 degrees with respect to the first casing B, the hinge shaft 2 rotates clockwise together with the second casing C as shown in FIGS. The first rotating cam member 7 of the first cam mechanism 4a of the first rotation control means 4A rotates together with the hinge shaft 2, and the cam convex portions 7b and 7b are detached from the cam concave portions 6e and 6e of the first fixed cam member 6. Since the cam projections 7b and 7b are in contact with the cam projections 6d and 6d and the cam projections 7b and 7b run over the cam projections 6d and 6d at the opening and closing angle of 15 degrees or more, the first in the range of the opening and closing angle of 120 degrees. Due to the pressing force by the elastic means 8, they are brought into a pressure contact state, and friction torque is created on the first cam mechanism 4 a and the friction washer 5 side, and the second casing C is opened and closed with respect to the first casing B with a free stop. It will be. In other words, in the opening / closing angle range up to 15 degrees with respect to the first casing B, the rotation control means 4 is a strength at which the second casing C supports the second casing C while being independent of the first casing B. Thus, the second casing C naturally falls within this angular range and the first casing B is closed. Further, at this time, just before the second casing C is closed with respect to the first casing B, the engagement state of the first fixed cam portion 6c and the first rotating cam portion 7d of the first rotation control means 4A is devised. By adding, the suction function is exhibited, the second casing C is automatically closed with respect to the first casing B, and the lock function for maintaining this state can be exhibited. .

  On the other hand, the second rotation control means 4B has an opening / closing angle range between 0 degrees and 120 degrees with respect to the first casing B of the second casing C, as shown in FIGS. Since the outer cam convex portion 12b and the inner cam convex portion 12c of the second rotating cam member 12 of the second cam mechanism 4b move in the outer cam concave portion 11e and the inner cam concave portion 11f of the second fixed cam member 11, A large friction torque has not been created. This state continues while the second casing C is opened to 120 degrees with respect to the first casing B.

  When the second casing C is opened 120 degrees or more with respect to the first casing B, the friction torque generated by the first rotation control means 4A remains unchanged, and this time, the second cam mechanism 4b of the second rotation control means 4B. Since the outer cam convex portion 12b and the inner cam convex portion 12c of the second rotating cam member 12 ride on the outer cam convex portion 11c and the inner cam convex portion 11d of the second fixed cam member 11, the second elasticity Due to the pressing force of the means 13, friction torque is also created on the second rotation control means 4B side. The state in which both the first rotation control means 4A and the second rotation control means 4B create friction torque continues up to 160 degrees, and after 160 degrees, the first cam mechanism 4a of the first rotation control means 4A has a first state. The cam convex portions 7b, 7b of the rotary cam member 7 fall into the cam concave portions 6e, 6e of the first fixed cam member 6, and the outer cam convex portion 12b and the inner side of the second rotary cam member 12 of the second rotation control means 4B. When the cam projection 12c falls into the outer cam recess 11e and the inner cam recess 11f of the second fixed cam member 11, both the friction torques are reduced, and the first casing B and the second casing C are fully closed. It becomes the same state as the time of.

  FIG. 19 is an explanatory view of the friction torque of the first rotation control means 4A and the second rotation control means 4B described above, (a) is a torque curve diagram of the first rotation control means 4A, and (b). Is a torque curve diagram of the second rotation control means 4B, and (c) is a combined torque curve diagram of the first rotation control means 4A and the second rotation control means 4B. As can be seen from this explanatory diagram, the first rotation control means 4A does not create friction torque from 0 degrees to 15 degrees of the second casing C with respect to the first casing B, but creates friction torque from 15 degrees. To 160 degrees. The second rotation control means 4B creates friction torque from 120 degrees and continues to 160 degrees. In this way, the second casing C having the touch panel that can be touch-operated creates a large friction torque between the operation angles of 120 to 160 degrees for the touch operation, and the second casing C can be touched even with a finger. It is possible to prevent the body C from rotating backward.

  The friction torque curve described above is an example and is not limited to the one described. There can be various variations without departing from the object of the invention.

  Since the present invention is configured as described above, in particular, a tilt hinge that connects a first housing having a keyboard unit such as a notebook computer and a second housing having a display unit having a touch operation function, and the tilt hinge are used. It is suitably used as a notebook personal computer.

A notebook computer B first housing C second housing D tilt hinge 1 mounting member 1A first mounting member 1a mounting base portion 1b bearing plate portion 1i deformed bearing hole 1B second mounting member 1d mounting portion 1e bearing portion 2 hinge shaft 2e Circular small-diameter shaft portion 3 Support member 3a Mounting base portion 3b Mounting portion 4 Rotation control means 4A First rotation control means 4a First cam mechanism 5 Friction washer 6 First fixed cam member 6b Circular bearing hole 6c First fixed cam portion 6d Cam Convex part 6e Cam concave part 7 First rotating cam member 7b Cam convex part 7c Cam concave part 7d First rotational cam part 8 First elastic means 4B Second rotation control means 4b Second cam mechanism 11 Second fixed cam member 11g Second fixed Cam portion 12 Second rotating cam member 12f Second rotating cam portion 13 Second elastic means

Claims (8)

  An attachment member attached to the first housing side, a support member attached to the second housing side, a hinge shaft that rotatably connects the support member to the attachment member, and between the attachment member and the support member A rotation control means for the support member provided via a hinge shaft. The rotation control means controls a rotation torque within a range of a predetermined opening / closing angle between the support member and the mounting member. And a first rotation control unit configured to control a rotation torque at an opening / closing angle outside the predetermined opening / closing angle range of the support member and the mounting member, and the first casing of the second casing. In the predetermined opening / closing angle range, the first rotation control means operates, and, in the case other than the predetermined opening / closing angle range, the second rotation control means in addition to the first rotation control means. Characterized in that but that form to create a stronger torque in operation, tilt hinge.   The first rotation control means is provided on one side of the hinge shaft across the attachment member, and the second rotation control means is provided on the other side of the hinge shaft across the attachment member. The tilt hinge according to claim 1, wherein:   The tilt hinge is rotatably attached to the attachment member, and a support member is attached to one end of the hinge shaft, and the first rotation control means includes a free end side of the attachment member and the hinge shaft. The tilt hinge according to claim 1, wherein the second rotation control means is provided between the attachment member and the support member.   The mounting member includes a mounting base portion and a bearing plate portion raised from the mounting base portion, a first mounting member having a tapered deformed bearing hole provided in the bearing plate portion, and the first mounting member. And a second mounting member having a circular bearing hole raised from the mounting portion, and the hinge shaft has the deformation of the first mounting member at a substantially central portion thereof. The tilt hinge according to claim 1, wherein a circular small-diameter shaft portion engaged with the bearing hole is provided.   The mounting member includes a mounting base portion and a bearing plate portion raised from the mounting base portion, a first mounting member having a tapered deformed bearing hole provided in the bearing plate portion, and the first mounting member. And a second mounting member having a bearing portion provided with a circular bearing hole raised from the mounting portion. The hinge shaft has a first central portion at the first central portion. It is assumed that a circular small-diameter shaft portion that is engaged with the deformation bearing hole of the mounting member is provided, and the first rotation control means is locked to the bearing portion of the second mounting member and rotates the hinge shaft. A first fixed cam member having a first fixed cam portion on one surface portion of the first fixed cam portion that can be inserted and moved in the axial direction, and is rotatable with the hinge shaft adjacent to the first fixed cam member. A first cam mechanism comprising a first rotating cam member having a first rotating cam portion on the side facing the first fixed cam portion provided between the first mounting member and the first fixed cam member. A friction washer provided so as to be rotatable together with the hinge shaft, and a first elastic means mounted on the hinge shaft adjacent to the first rotating cam member. The tilt hinge according to claim 1.   The mounting member includes a mounting base portion and a bearing plate portion raised from the mounting base portion, a first mounting member having a tapered deformed bearing hole provided in the bearing plate portion, and the first mounting member. And a second mounting member having a circular bearing hole raised from the mounting portion, and the hinge shaft has the deformation of the first mounting member at a substantially central portion thereof. It is assumed that a circular small-diameter shaft portion engaged with the bearing hole is provided, and the second rotation control means allows the hinge shaft to be rotatably inserted and locked to the bearing plate portion of the first mounting member. And a second fixed cam member provided with a second fixed cam portion on one side surface thereof, and the second fixed cam member provided adjacent to the second fixed cam member and constrained to rotate by the hinge shaft. Part A second cam mechanism comprising a second rotating cam member provided with a second rotating cam portion, and a second elastic means mounted on the hinge shaft adjacent to the second rotating cam member. The tilt hinge according to claim 1, wherein the tilt hinge is a feature.   The second fixed cam portion and the second rotating cam portion each have a cam convex portion and a cam concave portion, and the cam convex portion and the cam concave portion are provided concentrically so as to be shifted in the radial direction. The tilt hinge according to claim 6.   A notebook computer using the tilt hinge according to claim 1.

Images