JP6997688B2 - Swivel mechanism and display device - Google Patents

Description

The present invention relates to a swivel mechanism that rotatably attaches a display unit to a stand, and a display device having a swivel mechanism.

Display units such as floor-standing televisions are usually mounted on a stand so that they can be placed on the floor or on a TV stand. Further, a swivel mechanism is generally used as a mechanism for allowing the display unit to swing left and right without moving the stand (for example, Patent Document 1).

The swivel mechanism disclosed in Patent Document 1 allows the user to manually perform a swivel operation (swinging operation), but when the user does not apply force, friction acting between the members in the swivel mechanism. The current position is maintained by the force (rotational torque).

Japanese Unexamined Patent Publication No. 2012-98391

However, the swivel mechanism disclosed in Patent Document 1 does not have a locking function that regulates the swivel operation, and the swivel operation is always possible. If the swivel operation on a television or the like is possible, there is a risk that the child may move the television to play and fall.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a swivel mechanism and a display device capable of easily locking and unlocking a swivel operation by a user.

In order to solve the above problems, the swivel mechanism according to the first aspect of the present invention is a swivel mechanism that rotatably attaches a display unit to a stand, and includes a hinge base attached to the stand and the above. A hinge plate attached to the display unit, a rotating shaft that rotatably supports the hinge plate while applying a predetermined rotational torque to the hinge base, and around the rotating shaft and the hinge base. It is provided with a support portion arranged between the hinge plate and the support portion, which is arranged so as to face the hinge plate and is non-rotatable with respect to the hinge base around the rotation axis. A first ring attached so as to be movable along the axial direction of the rotation axis, and the first ring are arranged on the opposite side of the hinge plate so as to face the first ring and are arranged around the rotation axis. It is composed of a second ring that is rotatably attached to the hinge base, and by rotating the second ring, the gap between the first ring and the hinge plate changes. The first ring is in pressure contact with the hinge plate.

According to the above configuration, by rotating the second ring in the support portion, the gap between the first ring and the hinge plate can be changed, and the first ring can be pressed against the hinge plate. At this time, a large rotational torque that hinders the rotation of the hinge plate is generated between the first ring and the hinge plate, and the lock state that regulates the swivel operation of the hinge plate can be achieved by this rotational torque. Further, if the second ring is rotated in the opposite direction and the pressure contact between the first ring and the hinge plate is released, the unlocked state is obtained. Therefore, it is easy to switch between lock and unlock only by the rotating operation of the second ring. Can be done.

Further, in the swivel mechanism, the facing surfaces of the first ring and the second ring are formed with an inclined surface whose thickness gradually increases along the circumferential direction, and the second ring is rotated. By changing the relative position of the first ring and the second ring in the circumferential direction, the contact position between the inclined surface of the first ring and the inclined surface of the second ring changes. The first ring may be configured to move along the axial direction of the rotation axis.

According to the above configuration, the rotation operation of the second ring is converted into the axial movement operation of the first ring by a simple structure in which an inclined surface is provided on the facing surfaces of the first ring and the second ring. be able to.

Further, in the swivel mechanism, the second ring may have an operation protrusion on the outer peripheral side surface thereof.

According to the above configuration, when switching the lock / unlock of the swivel mechanism, the user can easily rotate the second ring by hooking a finger or the like on the operation protrusion.

Further, in order to solve the above-mentioned problems, the display device according to the second aspect of the present invention is a display device in which a display unit is rotatably attached to a stand via a swivel mechanism, and is described above. It is characterized by using the swivel mechanism of.

According to the above configuration, the swivel operation of the display unit can be regulated by setting the swivel mechanism in the locked state.

The swivel mechanism and the display device of the present invention have an effect that the lock / unlock can be switched only by the rotation operation of the second ring in the swivel mechanism, and the user can easily lock and unlock the swivel operation. Play.

It shows one embodiment of the present invention, and is a perspective view which shows the structure which connected the display part mounting member and the stand mounting member by using the swivel mechanism. It is an exploded perspective view of the structure shown in FIG. It is a perspective view of the hinge base used for the swivel mechanism of FIG. 1 seen from diagonally above. It is a perspective view of the hinge plate used for the swivel mechanism of FIG. 1 seen from diagonally above. It is a perspective view of the 2nd support ring used for the swivel mechanism of FIG. 1 seen from diagonally above. FIG. 3 is a perspective view of the first support ring used in the swivel mechanism of FIG. 1 as viewed from diagonally below. It is a schematic view of the swivel mechanism of FIG. 1 seen from the side, (a) shows an unlocked state, and (b) shows a locked state.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a configuration in which a display unit mounting member 200 and a stand mounting member 300 are connected by using the swivel mechanism 100 according to the present embodiment, and shows a state in which the configuration is viewed from diagonally below. There is. FIG. 2 is an exploded perspective view of the configuration shown in FIG. 1, showing a state in which the configuration is viewed from diagonally above.

The display unit mounting member 200 is a member that is fixedly attached to a display unit (not shown) such as a television or a display for a personal computer. Specifically, the mounting plate 201 included in the display unit mounting member 200 is fixed to the display unit by a screw or the like. The stand mounting member 300 is a member that can be fixedly or displaceably mounted on a stand (not shown). That is, the stand mounting member 300 may be fixedly mounted to the stand, but may be mounted between the stands via a tilt mechanism. When the tilt mechanism is provided between the stand mounting member 300 and the stand, in addition to the swivel operation by the swivel mechanism 100, the tilt operation for adjusting the angle of the display unit up and down is also possible.

As described above, the swivel mechanism 100 according to the present embodiment is attached to the display unit via the display unit mounting member 200, and is attached to the stand via the stand mounting member 300 to be attached to the display device. However, it becomes applicable. Examples of the display device to which the present invention can be applied include a flat-screen television and a monitor device for a personal computer.

As shown in FIG. 2, the swivel mechanism 100 includes a hinge base 101, a hinge plate 102, a first support ring (first ring) 103, a second support ring (second ring) 104, a bolt (rotating shaft) 105, and a washer. It is configured to include 106 to 109, disc springs 110, 111 and nuts 112.

The hinge base 101, the second support ring 104, the first support ring 103, and the hinge plate 102 are four plate-shaped members laminated in this order from the stand mounting member 300 side to the display portion mounting member 200 side. .. Further, the hinge base 101 and the hinge plate 102 are connected through a bolt 105, and the hinge plate 102 is rotatable with respect to the hinge base 101. That is, by rotating the hinge plate 102 with respect to the hinge base 101, the swivel operation in the swivel mechanism 100 becomes possible. Hereinafter, the specific configuration and operation of the swivel mechanism 100 will be described in detail.

FIG. 3 is a perspective view of the hinge base 101 as viewed from diagonally above. The hinge base 101 is fixedly attached to the stand attachment member 300 by a screw or the like. Further, the hinge base 101 is provided with a bolt hole 101A for passing the bolt 105 and an engaging protrusion 101B protruding further upward from the upper surface of the hinge base 101. The function of the engaging projection 101B will be described later.

FIG. 4 is a perspective view of the hinge plate 102 as viewed from diagonally above. The hinge plate 102 is provided with a bolt hole 102A for passing the bolt 105, and a recess 102B for the head of the bolt 105 to enter is provided around the bolt hole 102A. That is, although the bolt 105 is inserted from the hinge plate 102 side, it is possible to prevent the bolt head from protruding on the upper surface of the hinge plate 102 by the head of the bolt 105 entering the recess 102B. Further, the display portion mounting member 200 is fixedly mounted on the upper surface of the hinge plate 102 by a screw or the like.

The bolt 105 does not have a circular cross-sectional shape, but has a cross-sectional shape cut by two parallel strings facing each other in a circle. Further, although the bolt hole 101A in the hinge base 101 is circular, the bolt hole 102A in the hinge plate 102 has a shape corresponding to the cross section of the threaded portion of the bolt 105. Therefore, the bolt 105 is rotatable with respect to the hinge base 101, but is not rotatable with respect to the hinge plate 102. That is, when the hinge plate 102 is rotated with respect to the hinge base 101, the bolt 105 rotates integrally with the hinge plate 102.

The bolt 105 is inserted from the upper surface side of the hinge plate 102, further penetrates the hinge base 101 and the stand mounting member 300, and the nut 112 is fastened below the stand mounting member 300. Further, washers 106 and 107 are inserted into the bolt 105 between the hinge plate 102 and the hinge base 101, and washers 108 and 109 and disc springs 110 and 111 are inserted into the bolt 105 between the stand mounting member 300 and the nut 112. To. These washers 106 to 109 and the disc springs 110 and 111 have a function of appropriately adjusting the rotational torque of the hinge plate 102 when the swivel mechanism 100 is unlocked (details will be described later). Further, the washers 106 and 107 arranged between the hinge plate 102 and the hinge base 101 also have a function of keeping the axial distance between the hinge plate 102 and the hinge base 101 constant.

Subsequently, the configuration and operation of the support unit including the first support ring 103 and the second support ring 104 will be described. In the swivel mechanism 100, the support unit has the following two roles.
Role (1): Switch between locking / unlocking the swivel mechanism 100 (lock function). When the swivel mechanism 100 is locked, the swivel operation is restricted.
Role (2): Prevents the display from shaking (shaking prevention function).

FIG. 5 is a perspective view of the second support ring 104 as viewed from diagonally above. The second support ring 104 is an annular member having a large opening 104A in the center, and the diameter of the opening 104A is sufficiently larger than the diameter of the bolt 105. An inclined surface 104B whose thickness gradually increases along the circumferential direction is formed on the upper surface of the second support ring 104 (the surface facing the first support ring 103). It is preferable that the inclined surface 104B is divided into a plurality of regions (six regions in FIG. 5) so that the central angles of the inclined surfaces 104B are equal to each other. The lower surface of the second support ring 104 (contact surface with the hinge base 101) may be a flat surface.

An operation protrusion 104C that protrudes further outward from the outer peripheral side surface of the second support ring 104 and a notch 104D having a predetermined width in the circumferential direction are formed on a part of the outer circumference of the second support ring 104. Has been done. Although the detailed operation will be described later, in the swivel mechanism 100, the lock / unlock can be switched by rotating the second support ring 104. When switching the lock / unlock of the swivel mechanism 100, the user can easily rotate the second support ring 104 by hooking a finger or the like on the operation protrusion 104C.

The notch 104D defines the rotation range of the second support ring 104 by engaging with the engagement projection 101B provided on the hinge base 101. That is, the width in the circumferential direction of the notch 104D is set to be larger than the width of the engagement projection 101B in the circumferential direction, and the engagement projection 101B is located inside the notch 104D. 2 The support ring 104 is rotatable with respect to the hinge base 101. Then, the second support ring 104 locks the swivel mechanism 100 at one end of its rotation range and locks the swivel mechanism 100 at the other end. In the configuration example of the present embodiment, the swivel mechanism 100 is unlocked when the second support ring 104 is rotated counterclockwise and the engaging protrusion 101B abuts on one end of the notch 104D. It becomes. On the other hand, when the second support ring 104 is rotated clockwise and the engaging projection 101B comes into contact with the other end of the notch 104D, the swivel mechanism 100 is locked.

FIG. 6 is a perspective view of the first support ring 103 as viewed from diagonally below. The first support ring 103 is an annular member having a large opening 103A in the center, and the diameter of the opening 103A is the same as that of the opening 104A in the second support ring 104. An inclined surface 103B whose thickness gradually increases along the circumferential direction is formed on the lower surface of the first support ring 103 (the surface facing the second support ring 104). Similar to the inclined surface 104B of the second support ring 104, the inclined surface 103B is preferably formed by being divided into a plurality of regions (six regions in FIG. 6) so that their central angles are equal to each other. In this case, the number of divisions of the inclined surface 103B is the same as the number of divisions of the inclined surface 104B of the second support ring 104. The upper surface of the first support ring 103 (the surface facing the hinge plate 102) may be a flat surface.

In the first support ring 103, a plurality of (three in FIG. 6) engaging pins 103C are provided so as to be in contact with the inner peripheral surface of the opening 103A. These engaging pins 103C are formed so as to project further downward from the lower surface of the first support ring 103, and are inserted into the engaging holes 101C (see FIG. 3) formed on the upper surface of the hinge base 101. , The rotation of the first support ring 103 with respect to the hinge base 101 is restricted (impossible). However, the first support ring 103 is allowed to move along the rotation axis direction of the bolt 105. Further, these engaging pins 103C also come into contact with the inner peripheral surface of the opening 104A in the second support ring 104. Therefore, the rotation of the second support ring 104 is restricted by the engagement pin 103C on the inner circumference, and the second support ring 104 can rotate without blurring. In order to rotate the second support ring 104 without blurring, it is desirable that the number of engaging pins 103C is three or more.

It is preferable that the rotation axis of the rotation of the second support ring 104 coincides with the rotation axis of the hinge plate 102 in order to improve the anti-sway function of the support portion of the swivel mechanism 100. However, in the present embodiment, it is not essential that the rotation axis of the second support ring 104 and the rotation axis of the hinge plate 102 are aligned with each other, and these rotation axes may be slightly deviated.

A notch 103D having a predetermined width in the circumferential direction may be formed on a part of the outer periphery of the first support ring 103. That is, the width in the circumferential direction of the notch 103D is the same as the width of the engagement projection 101B in the circumferential direction, and the engagement projection 101B is engaged with the notch 103D to engage the first support ring 103. It can support rotation regulation. However, if the rotation of the first support ring 103 can be sufficiently regulated only by the engagement pin 103C, the height of the engagement protrusion 101B is made lower than the upper surface of the second support ring 104 so that the notch portion 103D is used. Can be omitted.

Subsequently, the lock / unlock switching operation in the swivel mechanism 100 will be described. 7A and 7B are schematic views of the swivel mechanism 100 as viewed from the side, where FIG. 7A shows an unlocked state and FIG. 7B shows a locked state.

In the support portion of the swivel mechanism 100, as described above, the inclined surface 103B and the inclined surface 104B whose thickness gradually increases along the circumferential direction on the facing surfaces of the first support ring 103 and the second support ring 104. Are formed respectively. Then, in the unlocked state shown in FIG. 7A, the portion having a small thickness on the inclined surface 103B and the portion having a large thickness on the inclined surface 104B face each other, and the portion having a large thickness on the inclined surface 103B and the thickness on the inclined surface 104B are opposed to each other. Opposes the small part of. At this time, the total thickness of the first support ring 103 and the second support ring 104 is the smallest, and a slight gap (about 0.1 mm) is generated between the first support ring 103 and the hinge plate 102. ..

In such an unlocked state, a gap is formed between the first support ring 103 and the hinge plate 102, which hinders the rotation of the hinge plate 102 between the first support ring 103 and the hinge plate 102. Such a rotational torque is not generated, and the hinge plate 102 can be easily swiveled.

When there is a gap between the first support ring 103 and the hinge plate 102, the display unit connected to the swivel mechanism 100 is basically held with the bolt 105 as the support shaft. However, the bolt 105 is usually too thin to hold the display while preventing it from shaking. However, since the gap between the first support ring 103 and the hinge plate 102 is small, the lower surface of the hinge plate 102 comes into contact with the upper surface of the first support ring 103 even when the display portion slightly shakes. This can prevent large shaking. As a result, the support unit in the swivel mechanism 100 can obtain the above-mentioned anti-sway function.

Next, in the locked state shown in FIG. 7B, the second support ring 104 is rotated from the unlocked state to change the relative positions of the first support ring 103 and the second support ring 104 in the circumferential direction. As a result, the contact position between the inclined surface 103B and the inclined surface 104B changes, and the total thickness of the first support ring 103 and the second support ring 104 changes. Specifically, the thick portion on the inclined surface 103B and the thick portion on the inclined surface 104B face each other, and at this time, the total thickness of the first support ring 103 and the second support ring 104 is the largest. Will be. As a result, the gap between the first support ring 103 and the hinge plate 102 disappears, and the first support ring 103 is in a state of being pressed against the hinge plate 102.

In the locked state in which the first support ring 103 is pressed against the hinge plate 102 in this way, a large rotational torque is generated between the first support ring 103 and the hinge plate 102 when the hinge plate 102 is to be swiveled. Occur. This rotational torque hinders the rotation of the hinge plate 102, and is in a locked state that substantially restricts the swivel operation of the hinge plate 102. Even in the swivel mechanism 100 in the locked state, the above-mentioned anti-sway function can be obtained by the contact between the first support ring 103 and the hinge plate 102.

As described above, in the swivel mechanism 100 according to the present embodiment, lock / unlock can be switched only by the rotational operation of the second support ring 104. That is, the user can easily lock and unlock the swivel operation.

Further, the locked state of the swivel mechanism 100 is achieved by pressing the first support ring 103 against the hinge plate 102 and generating a large rotational torque between the first support ring 103 and the hinge plate 102. .. In this case, even if a force larger than the rotational torque is applied to the hinge plate 102, only slip occurs between the first support ring 103 and the hinge plate 102, and the swivel mechanism 100 is damaged. There is no.

The embodiments disclosed this time are exemplary in all respects and are not grounds for limited interpretation. Therefore, the technical scope of the present invention is not construed solely by the embodiments described above, but is defined based on the description of the scope of claims. It also includes all changes within the meaning and scope of the claims.

100 Swivel mechanism 101 Hinge base 101A Bolt hole 101B Engagement protrusion 102 Hinge plate 102A Bolt hole 102B Recess 103 First support ring (first ring)
103A Opening 103B Inclined surface 103C Engagement pin 103D Notch 104 Second support ring (second ring)
104A Opening 104B Inclined surface 104C Operating protrusion 104D Notch 105 Bolt (rotating shaft)
106-109 Washers 110,111 Belleville spring 112 Nut 200 Display mounting member 300 Stand mounting member

Claims (4)

A swivel mechanism that rotatably attaches the display to the stand.
The hinge base attached to the stand and
A hinge plate attached to the display and
A rotation shaft that rotatably supports the hinge plate while applying a predetermined rotational torque to the hinge base, and
It is provided with a support portion arranged around the rotating shaft and between the hinge base and the hinge plate.
The support unit
A first ring that is arranged to face the hinge plate, is non-rotatable with respect to the hinge base around the axis of rotation, and is attached so as to be movable along the axial direction of the axis of rotation. When,
It is composed of a second ring which is arranged opposite to the first ring on the opposite side of the hinge plate and is rotatably attached to the hinge base around the axis of rotation.
A swivel mechanism characterized in that the gap between the first ring and the hinge plate is changed by rotating the second ring, and the first ring is in pressure contact with the hinge plate. The swivel mechanism according to claim 1.
The facing surfaces of the first ring and the second ring are formed with an inclined surface whose thickness gradually increases along the circumferential direction.
By rotating the second ring and changing the relative position of the first ring and the second ring in the circumferential direction, the inclined surface of the first ring and the inclined surface of the second ring are contacted with each other. A swivel mechanism characterized in that the tangent position changes and the first ring moves along the axial direction of the rotation axis. The swivel mechanism according to claim 1 or 2.
The second ring is a swivel mechanism characterized by having an operation protrusion on the outer peripheral side surface thereof. A display device in which a display unit is rotatably attached to a stand via a swivel mechanism.
The display device, wherein the swivel mechanism is the swivel mechanism according to any one of claims 1 to 3.

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