JP2502042Y2 - Damping hinge - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge that exerts a damping effect on rotational force.

[0002]

2. Description of the Related Art A hinge having a structure rotatable about an axis is an important basic component used in a very wide range of fields. However, since the conventional hinge merely rotatably connects the pair of hinge pieces to each other around the axis, it does not have the function of relaxing the momentum when the momentum is exerted on the rotational movement. On the other hand, it is known that a spring is incorporated between the hinge pieces, but in such a case, there is a problem in that the spring is settled or damaged.

[0003]

The present invention has been made in view of the above-mentioned points, and the problem is to rotate the hinge about its axis. In order to generate a larger torque in the rotation of 1, to prevent the rotation from gaining momentum, a quiet and gentle operation can be obtained.

[0004]

In order to solve the above-mentioned problems, the present invention provides a cylindrical chamber 11 which can be filled with a viscous fluid.
And a shaft member 14 having a movable valve 13 that is rotatably supported around the cylindrical axis in the chamber and that changes the flow resistance of the viscous fluid depending on the rotation direction. A pair of hinge plates 16 combined with the rotary damper 15 with the cylindrical shaft as an opening / closing shaft,
16 ', first and second engaging portions 17, 17' located on the cylindrical shaft and engaging around the shaft are formed at one end of the casing 12 and one end of the shaft member 14, respectively. , First and second engaging pieces 18, 18 'engageable with the engaging portions 17, 17' for rotating the hinge plates 16, 16 'integrally with the casing 12 or the shaft member 14, respectively. This means is provided on the hinge plates 16 and 16 '.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The hinge of the present invention is roughly divided into a rotary damper 15 and a pair of hinge plates 16 and 16 ', and FIG. 1 shows the simplest example thereof. The rotary damper 15 has a casing 12 and a shaft member 14 which are rotatable with respect to each other, one hinge plate 16 rotates integrally with the casing 12, and the other hinge plate 16 ′ rotates integrally with the shaft member 14. To do.

The casing 12 of the rotary damper 15 has a chamber 11 which is formed of a cylindrical space and is filled with the viscous fluid G and in which the shaft member 14 and the movable valve 13 are rotatably incorporated. A bearing portion including a shaft hole 23 and a support shaft 24 is provided inside the chamber 11. A rotation stopper 22 is provided on the inner wall in the axial direction, and the rotation of the shaft member 14 is defined within a finite angle range. The shaft member 14 has a protruding portion 25 having substantially the same length and the same direction as the rotation stop 22, and the movable valve 13 having substantially the same length as that is combined therewith. The movable valve 13 has a U-shaped cross section that is loosely fitted in the protruding portion 25 between the front and rear flaps in the rotational direction. The flow resistance of the viscous fluid G is changed depending on whether it overlaps with or with the other hanging piece 28. Two
Reference numeral 9 is a guide groove for reducing a sudden change in torque. In addition, 21
Is a cap, supports the shaft member 14 and is a viscous fluid G
It is provided for sealing.

A cylindrical shaft L which also serves as a rotary shaft of the rotary damper 15.
First and second engaging portions 17 and 17 'are provided at the end of the casing 12 and the end of the shaft member 14, respectively, in order to cause engagement around the axis thereof located above. First of Example 1
The engaging portion 17 has a quadrangular square shape, and the second engaging portion 17 'has a similar rectangular shape. Of course, the shapes of the engaging portions 17 and 17 'are not limited to the quadrilateral, and any shape may be used as long as engagement can be generated around the axis.

The pair of hinge plates 16 and 16 'are used for utilizing the rotary damper 15 as a hinge, and have means 31 for mounting the rotary damper 15. The illustrated attachment means 31 is a small hole for screwing, which is opened in the flat plate surface. There are many known means of attaching the hinge plate to the rotary damper 15, but in the present invention by engagement. Therefore, the rectangular first and second engaging portions 17, 1
First and second engagement pieces 18, 1 of the same type that can be engaged with 7 '
8'is provided on each hinge plate 16, 16 '. The engagement shape of the engagement pieces 18 and 18 'can also be changed according to the form of the engagement portions 17 and 17'. The tips of the engagement pieces 18 and 18 'are appropriately joined by bending or the like.

In the case of the damping hinge of the first embodiment having such a structure, one hinge plate 16 has the first engaging portion 1
7, the first engaging piece 18 is engaged to be integrated with the casing 12, and the other hinge plate 16 'has a second engaging portion 17' and a second engaging portion 17 '.
By the engagement of the engagement pieces 18 ', a hinge device is formed which is integrated with the shaft member 14 and is rotatable with respect to each other around an axis around the cylindrical axis L. When the shaft member 14 rotates in the viscous fluid G by the rotation of the hinge plates 16 and 16 '(see FIG. 2), the counterclockwise rotation in which the passage opening 26 and the valve opening 27 are overlapped with each other causes less resistance and rotates smoothly. In the clockwise rotation shown in the figure in which 26 is blocked by the hanging piece 28, the resistance becomes large, and therefore it rotates slowly.

In such a damping hinge, the damping force can be easily increased by using two or more rotary dampers 15. Next, Example 2 will be described with reference to FIGS. It should be noted that the configuration common to the first embodiment is referred to by the reference numerals and the description thereof is omitted. The second embodiment is an example in which two rotary dampers 15 are connected in cascade, and a projection 19 that can be fitted to each other in order to hold the dampers 15 in series during the connection.
And recesses 19 'are formed at the ends of the first and second engaging portions 17, 17', respectively.

In order to connect the two rotary dampers 15 in series, two first engaging pieces 18, 18 engageable with the first engaging portions 17, 17 of the two rotary dampers 15 are provided. Provided along one side of the hinge plate 16, two second engaging portions 17 ', 1
Two second engaging pieces 18 ', 18' which engage with 7'are separately provided on the other hinge plate 16 '. By combining two rotary dampers 15, if both dampers have the same standard, a damping force twice as large as that of one damper is exhibited, but the standards of the dampers to be combined may be different. Therefore, depending on the combination of the two rotary dampers 15,
The damping force in the double range can be arbitrarily selected.

FIG. 5 shows an example of assembling the damping hinge according to the second embodiment. The same figures (a) and (b) show the hinge plate 16,
16 'is an example in which the parallel state is one rotation limit state, and members 32, 3 attached to the hinge plates 16, 16' are shown.
The 2'can be rotated 180 degrees from there. The figures (c) and (d) show an example in which the hinge plates 16 and 16 'are in an orthogonal state in which the hinge plates 16 and 16' are in a 90 degree position, and the member 32 attached to the hinge plate 16 on the rotating side is from there. 1
Rotation of 80 degrees is possible. In Embodiments 1 and 2 described above, the pair of hinge plates 16 and 16 'may have the same shape, so that they can be easily manufactured and can be easily changed to use three or four rotary dampers 15.

In the second embodiment, the U-shaped engaging pieces 18, 1 are used.
This is an example in which a plurality of rotary dampers 15 are connected in series by a pair of hinge plates 16 and 16 'having a plurality of 8', but the first and second engaging portions 17 and 17 'can be engaged in each row. 1,
Hinge plates 16, 16 "having second engagement pieces 18, 18 '
Since a plurality of rotary dampers 15 can be connected by means of the above, Example 3 will be described with reference to FIGS. 6 and 7.

In the case of the third embodiment, the hinge plates 16 and 16-2 are provided with the first engaging pieces 18 having the engaging holes 33 which can be engaged with the first engaging portion 17, and the second hinge plates 16 and 16-2. The hinge plates 16 "and 16" -2 are provided with the second engaging piece 18 'having the engaging hole 33' engageable with the engaging portion 17 '. The two hinge plates 16 and 16-2 of the first set and the two hinge plates 16 ″ and 16 ″ -2 of the second set are respectively the step portion 34,
34 ′ is integrated by welding to form a pair of hinge plates 16,
16 '(FIG. 7).

When the damping hinge according to the third embodiment having such a structure is combined, it becomes compact as shown in FIG. In the drawings, the same components as those in Embodiments 1 and 2 are referred to by the reference numerals, and detailed description thereof will be omitted.
The usage and action in Example 1 are the same as those in Examples 1 and 2.

[0016]

As described above, the present invention is constructed and operates as described above, and thus, when the rotational movement has a great momentum, the momentum can be buffered by the large resistance of the rotary damper 15. Moreover, since consumable parts such as springs are not used, there is no risk of malfunction, and therefore a new cushioning action and high practicality are exhibited.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a damping hinge according to the present invention.

FIG. 2 (a) is a vertical sectional view of a rotary damper used for the same hinge. (B) Similarly, a cross-sectional view.

FIG. 3 is a perspective view showing a second embodiment of the present invention.

FIG. 4A is a plan view of the same. (B) Similarly, a side view.

FIG. 5A is an explanatory diagram showing a first assembly example of the hinge of the second embodiment. (B) Explanatory drawing after the operation same as the above. (C) Explanatory drawing which shows the assembly example 2 of the hinge of Example 2. (D) Explanatory drawing after the above operation.

FIG. 6 is an exploded perspective view showing a third embodiment of the present invention.

FIG. 7 is a perspective view of the above.

Claims (3)

(57) [Scope of utility model registration request] 1. A casing 12 having a cylindrical chamber 11 in which a viscous fluid can be filled, and a casing 12 which is rotatably supported around the cylindrical axis in the chamber and changes the flow resistance of the viscous fluid depending on the direction of rotation. A shaft member 14 having a movable valve 13
And a pair of hinge plates 1 combined with the rotary damper 15 with the cylindrical shaft as an opening / closing shaft.
6 and 16 'and located on the same cylinder axis,
First and second engaging portions 17 and 1 that cause engagement around the axis
7'is formed at one end of the casing 12 and one end of the shaft member 14, respectively, and each of the engaging portions 1 for rotating the hinge plates 16 and 16 'integrally with the casing 12 or the shaft member 14 is formed.
First and second engaging pieces 18, 18 'engageable with 7, 17'
A damping hinge constructed by providing each hinge plate 16, 16 '. 2. A projection 19 which can be fitted to each other on the axial end faces of a first engaging portion 17 provided at one end of a casing 12 and a second engaging portion 17 'provided at one end of a shaft member 14. Recess 19 '
Are formed, and when the plurality of rotary dampers 15 are connected in series in the axial direction, the rotary dampers 15, 15 ... Are centered by fitting the projections 19 and the recesses 19 '. The damping hinge according to item 1. 3. The hinge plates 16, 16 'include a plurality of first engaging pieces 18 engageable with a plurality of first engaging portions 17 of a plurality of rotary dampers 15, and a plurality of second engaging pieces. The damping hinge according to claim 1, further comprising a plurality of second engaging pieces 18 'engageable with the joining portion 17'.