JPH11257342A - Hinge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure which can store a liquid crystal unit such as a video camera or which can be spread out for a monitor, so that it is rotatable while being spread out and it can also store the liquid crystal unit at a position where it is rotated to a specific angle. SOLUTION: This device consists of a design to substantially reduce the number of part items and a man-hour for assembling as a result of forming a rolled spring part 12, an opening and closing rotation bearing part and a stop part on the same plate sheet, a means for obtaining a housing 11 having excellent rigidity by box machining in particular, a means for producing an opening and closing friction torque in which an opening and closing shaft 13 with a little larger diameter than a diameter of the rolled spring is forced into a single roll spring with normal and reverse directional rolling applied, for the purpose of having a fixed opening and closing torque and an opening and closing angle stop part is also added to it, a means for producing a rotation torque in which a corrugated sheet spring and a snap ring are clamped to the rotation bearing part to produce a friction torque of the rotation shaft and a rotation angle stop part is also added to it, and a means for indicating a mechanism to confirm an angle position by two shaft crossing mechanism of the opening and closing shaft and the rotation shaft and to regulate the rotation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite joint which can be opened and closed (folded) and rotated with a liquid crystal unit for monitoring an image in a video camera, a personal computer, a digital camera, various video monitors and the like. The present invention relates to a hinge device which is constituted by a part and can be fixed and maintained in an arbitrary position by a friction torque (resistance torque) for folding and rotation.

[0002]

2. Description of the Related Art In general, a liquid crystal monitor unit of a video camera or a personal computer is provided with a hinge device for expanding the monitor from a housing and using the stored state for maintenance and portability of the equipment. Have been. This hinge has a mechanism that can be rotated at that position only after a simple 90-degree opening / closing or 90-degree deployment. Generally, the friction torque for positioning the hinge is generated by tightening or press-fitting parts such as hinges, disc springs, winding springs, torsion bars, and bushes, and a mechanism combining rotation restricting parts is used in combination with the hinge.

In general, hinges having only a folding (opening / closing) mechanism for opening and closing the lid are often of a uniaxial structure, have a small number of parts, are simple and inexpensive.

On the other hand, the conventional hinge, which has a folding mechanism and a rotating mechanism, is large in size, has a very complicated structure, and has a large number of parts, so that there is a problem in terms of manufacturing cost such as poor assembly workability. In addition, there is a drawback that the portable device is restricted in that it cannot be thinned due to its strength or cannot be mounted due to its heavy weight.

Further, the friction torque during opening / closing and rotation becomes weaker with the lapse of time, or only a specific position is activated, so that the fixed opening / closing and rotation cannot be maintained at an arbitrary position, or unstable.

[0006]

The hinge of the present invention is connected by a hinge which can be opened and closed by a video camera, a personal computer, a digital camera, various video monitors, etc., and a liquid crystal unit for monitoring images. It is an object of the present invention to provide a biaxial hinge capable of storing and expanding a liquid crystal unit body for monitoring or monitoring, a rotatable state in an expanded state, and further storing at a position rotated to a specific angle.

A mechanism capable of uniformly generating the friction torque within the movable range is provided, so that it can be fixed and maintained at an arbitrary position even when the opening and closing and the rotation shaft are angularly moved to an arbitrary position.

The hinge device has a number of parts by a method of punching a wound spring portion, a bearing portion, and a projection for stopping rotation from a metal blank plate into the same plate plate by press working, and manufacturing a housing having excellent rigidity by a wound spring and box working. In addition, the design was made to reduce the number of assembly steps and cost.

Further, the present invention relates to a hinge device to which a monitor body is added with a mechanism capable of forcibly regulating the direction of the monitor body to a predetermined position even when the monitor body is stored from an angle shifted from a predetermined storage position, that is, from a twisted state.

[0010]

The hinge according to the present invention is characterized in that the winding spring portion, the opening / closing rotary bearing portion and the stop portion are formed on the same plate by press working. As a result, the number of parts and the number of assembly steps are greatly reduced. Design to reduce,
In particular, the winding direction is positive for the purpose of obtaining a housing with excellent rigidity by box processing and for the purpose of keeping the opening and closing friction torque constant.
An open / close shaft with a diameter slightly larger than the diameter of the wrap spring is press-fitted into a single wrap spring applied from both reverse directions, and an open / close friction torque generating means with an open / close angle stop is added. A spring and retaining ring are fastened to the bearing to generate rotational friction torque, and a rotational friction torque generating means with a rotation angle stop added, and an opening / closing and two-axis crossing mechanism of the rotating shaft for confirming the angular position, and furthermore a two-axis repulsive force. Means that indicates a mechanism that regulates rotation by means of: generates uniform friction torque at any position on both the open / close and rotating shafts, and fixes within an angle range that can be opened / closed and rotated by this friction torque By maintaining this, it is possible to maintain a stable fixation as compared with the conventional product. Furthermore, when the rotating shaft is closed, the rotation is finally restricted by the repulsive force of the two shafts, and the rotation of the rotating shaft is forcibly performed. By having a mechanism in which the angles become 0 and 180 ° directions, for example, when the LCD monitor is stored after use, it is possible to prevent the monitor and the housing from contacting each other during the storage operation for observing the monitor in an inverted storage state. It is convenient in terms of conservation.

According to a second aspect of the present invention, the rotation of the rotating shaft is limited to an angle range of -90 ° to 180 ° based on the position where the rotating shaft is expanded by 90 ° in the hinge device made by the means of the first aspect. As possible, it has a position confirmation mechanism of -90, 0, 90, 180 degrees from the combination of the stop mechanism and the two axes, so that the position can be easily set. Since it is prevented from deviating and rotating, it is convenient and shows an effect for device maintenance.

The hinge according to the present invention has a structure in which the rotational friction torque is pressed by a spring such as a corrugated spring and the repulsive force is restrained by a retaining ring, but the spring washer, disc spring, coil spring, An elastic body such as a torsion bar or hard rubber may be used as the spring. Also tighten
In addition to the retaining ring, a screw, a pin, a caulking welding method, or the like may be adopted.

The hinge of the present invention can be used not only for OA equipment requiring an opening / closing mechanism but also for joints of various lids, display jigs, furniture and the like.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 12 shows an example of a video camera using the hinge device of the present invention. The hinge device is used as a joining part of the main body and the monitor in the figure, and the monitor housed in the main body is first developed in the opening and closing direction, and photographing and reproduction can be performed while viewing the monitor image. Depending on the type of hinge, the monitor may be further rotated at the deployed position, and an image may be observed from the front, rear, top and bottom of the housing.

FIG. 1 is an external view of a hinge according to the present invention, in which a winding part 12, an opening / closing shaft 13, a rotating shaft 14,
A device mounting plate 29 is incorporated. Winding part 12
In order to average open / close friction torque in the forward / reverse rotation direction and improve durability, single-layer springs 12- and 12- are wound around the open / close shaft 13 in both forward and reverse directions. The rotation stop is performed by the protrusion 26 and the protrusion 25 of the rotation stop ring 27. In addition, the center of the two sets of winding parts and the axis of the opening / closing bearing part are installed so as to coincide with the rotation axis of the opening / closing axis.

FIG. 2 shows the upper surface, and the opening / closing shaft 13 has a main body solid hole 17. The winding portion 12 is press-fitted on both sides of the opening / closing shaft as a winding spring portion 12-and is supported by the opening / closing bearing portion 21. . The rotating shaft 14 has a bearing portion 24 to which a corrugated spring 15 and a retaining ring 16 are inserted and fixed. The rotation stop mechanism is implemented by the protrusion 26 and the protrusion 25 of the stop ring 27.

FIG. 3 is an image diagram of the housing 11 of the hinge of the present invention in which the punched plate 19 is formed by winding spring and box processing.

FIG. 4 shows a plate plate 19 obtained by stamping a blank plate. In the figure, the dotted line indicates a bent portion. The plate plate 19 has two sets of winding spring portions 12-
, Two sets of opening / closing bearings 21 having holes 22 and two sets of rotating bearings 23 having holes 24, and both bearings are provided with rotation angle limiting stops 26, 20.
The plate may be any metal that can be pressed and bent.

FIG. 5 is a sectional view of the stop portion 20 of the opening / closing bearing portion 21 of the housing and an XX sectional view of FIG.

FIG. 6 shows an opening / closing shaft 1 constituting a biaxial hinge.
3 is shown. The opening / closing shaft 13 is provided with a hole 17 for fixing the hinge device to the main body at a flattened portion on both sides, and a recessed flat portion 31 at a central biaxial intersection. Either flat portion on both sides of the shaft is engaged with the opening / closing angle stop portion 20.

FIG. 7A shows the rotating shaft 14, a part of the circumference of which is flattened 32 along the axial length, and a portion 33 which intersects the opening / closing axis with two axes is also flattened. The shaft 14 has grooves 34 and 35 for inserting the retaining ring 16. The length of the flat portion 32 may be shorter than the length of the shaft, as long as the flat portion 32 can be cross-assembled with the flat portion 31 of the opening / closing shaft 13 and can be incorporated into the housing. (B) is an external device mounting plate 29, which is a hole 3 fitted to the rotary shaft 14.
6 and fixing holes 37.

FIG. 8 shows an image in which the opening / closing shaft 13 and the rotating shaft 14 are cross-assembled by the housing 11. The figure shows a case where the respective flat portions 31 and 33 are in contact with each other, and is an example shown in FIG.

FIGS. 9A to 9E show YY 'shown in FIG.
The positional relationship between the two axes 13 and 14 of the cross section is shown. (A,
Figures b and c) show the case where the rotation axis is rotated by 0, 180, -90, and 90 degrees, respectively, in a state where the opening and closing axis is expanded by 90 degrees. (D, e) shows the case where the rotating shaft is rotated by 0 and 180 ° (closed state) while the opening / closing shaft is at the 0 ° position.
FIG. 2B shows a combination position where the press-fitting can be most easily performed when assembling the two shafts with the housing. (C),
(D) and (e) depend on the shaft diameter of the two axes and the machining depth of the flat part because the intersection of the two axes 13 and 14 is the flat part and the circumferential part. b) A state in which a larger repulsive force is generated on the shaft than in the state shown in the figure. The rotation restriction is actually fixed when the rotation angle of the rotary shaft 14 is shifted from the position where the rotation angle of the rotation shaft 14 is deviated from the state of (a) or (b) to the state of (d) or (e). The rotating shaft 14 during the closing operation with respect to the opening / closing shaft 13 is forcibly rotated to the positions (d) and (e) where the repulsive force is weak.

FIG. 10 shows a rotation angle stop mechanism for the rotary shaft. First, a stop ring 27 fitted to the rotary shaft 14 with a hole 28 has a projection, and the projection and the rotation stop installed near the rotary bearing are provided. This is carried out by applying the projection 26 for use. FIG. 7A shows an example in which the rotation angle is 0 ° when the flat portion 32 of the rotating shaft 14 is directly above and the stop ring shown in FIG. The position of the stop mechanism can be changed by, for example, the angle at which the device is mounted on the housing, or by installing the projection 25 or 26 of the ring 27 at the bottom.

FIG. 11 shows a corrugated spring 15 and a retaining ring 16 for generating rotational friction torque.

[0027]

The biaxial hinge according to the present invention has a mechanism capable of uniformly generating a friction torque within a movable range, and can be fixed and maintained at an arbitrary position even when the opening and closing and the rotation axis are angularly moved to an arbitrary position. Make it possible.

The rotation restricting shaft has a mechanism capable of forcibly restricting the direction to a predetermined position even when the storage is performed at an angle deviated from a predetermined storage position, that is, in a twisted state.

The hinge device is formed by stamping a wound spring portion, a bearing portion, and a projection for stopping rotation from a metal blank plate into the same plate plate by pressing, and forming a housing having excellent rigidity by a wound spring and a box process. In addition, the design was made to reduce the number of assembly steps and cost.

[Brief description of the drawings]

FIG. 1 schematically shows a hinge device of the present invention.

FIG. 2 shows a top view of the hinge of FIG.

FIG. 3 shows a housing part of the hinge device.

FIG. 4 shows a press stamped plate for a housing.

FIG. 5 shows a side view of the housing.

FIG. 6 shows an opening / closing axis.

FIG. 7 shows a rotating shaft and a mounting plate.

FIG. 8 schematically shows a combination of an opening / closing axis and a rotating axis.

FIG. 9 shows the combined positions and angles of the opening / closing and rotation axes.

FIG. 10 shows a rotation stop mechanism and a stop plate.

FIG. 11 shows a corrugated spring and a retaining ring.

FIG. 12 shows an example of a video camera using a hinge.

[Explanation of symbols]

 10: Hinge device appearance 11: Housing part 12: Winding spring part 13: Opening / closing axis 14: Rotating axis 15: Corrugated spring 16: Retaining ring 17: Device mounting plate 19: Housing bottom part 20: Opening / closing stop part 21, 22: Opening / closing part Bearings 23, 24: Rotation bearing 26: Rotation stop projection 27: Rotation stop ring 29: Equipment mounting plate

Claims (2)

[Claims] 1. A winding spring portion for generating an opening / closing friction torque in which a winding portion is wound in a forward / reverse direction so that opening / closing torque due to friction is averaged in both directions of forward and reverse rotations. A housing comprising an open / close bearing having a stop mechanism for restricting and a rotary bearing having a projection for supporting the rotation of the rotary shaft and for restricting the rotation angle of the rotary shaft in the vicinity thereof integrally formed from a blank plate, and a friction torque of the housing. It is inserted into the winding part of the part, generates opening and closing friction torque, intersects with the rotating shaft at the center of the shaft, has a partially cutout concave part for checking the rotation angle and regulating rotation, and mounting holes are provided on both sides A rotary shaft having a groove for setting a spring and a retaining ring for fixing the rotary shaft between the opened / closed shaft and the bearing portion on one side of the housing and for generating a rotational friction torque. A rotation stop ring that is assembled to the rotation shaft and stops rotation between the projections of the rotation bearing, a spring and a retaining ring for generating friction torque of the rotation shaft, and a mounting for fixing external devices assembled to the rotation shaft It is composed of a plate, can be fixed and maintained at any position within the angle range that can be opened and closed and rotated by friction torque, and furthermore, a projection for opening and closing stop installed on an opening and closing bearing on one side of the housing when opening and closing the rotating shaft The opening and closing angle is limited by the opening / closing angle stop mechanism using the flat part and the opening / closing axis. The combination of a straight line, a dent, and a flat part formed at the intersection of two axes of the opening and closing rotating shaft is -90, 0, 90, 180 °. Click to confirm the position, and limit the rotation angle of the rotation shaft with the rotation stop mechanism installed on the rotation bearing of the housing,
When the rotating shaft is closed toward the opening and closing angle of 0 °, when the rotating angle is near 0 and 180 °, the shaft rotation is generated by the repulsive force generated between the two shafts due to the combination of the opening and closing and the flat portion of the rotating shaft. Rotation angle 0 ° at which repulsion is weakest
Alternatively, a two-axis hinge device having a rotation restricting mechanism that moves spontaneously by 180 °. 2. The opening and closing angle of the rotating shaft can be limited to 90 ° only when the angle is limited by a projection mechanism of the opening and closing bearing portion and a stop mechanism of a flat portion for mounting the opening and closing shaft. Outside the range, the angle is limited by the stopper mechanism, and the rotation angle of the rotating shaft is further provided with a stop projection so that the rotation angle can be rotated in a range of -90 ° to 180 ° based on the position where the opening and closing angle is expanded by 90 °. The biaxial hinge device according to claim 1, further comprising a rotation stop mechanism having an adjusted stop ring.