JPH0710341U - Damping hinge - Google Patents

Abstract

(57) [Abstract] [Purpose] Regarding the rotational movement of the hinge about its axis, one rotation makes it rotate lightly, and the other rotation makes it rotate slowly with a larger torque. [Structure] A casing 12 and a shaft member 1 that is rotatable in a cylindrical chamber 11 thereof and has a movable valve 13 that changes the flow resistance of a viscous fluid filled in the chamber 11 in magnitude.
4 is a rotary damper 16 and a pair of hinge plates 16 and 16 'combined therewith.
The first engaging portion 17 is provided at one end of the casing 12, while the second engaging portion 17 'is provided at one end of the shaft member 14, so that the first and the first engaging portions 17 and 17' are engageable with each other. 2 engaging pieces 1
8, 18 'are provided on each hinge plate 16, 16'.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hinge that exerts a damping effect on rotational force.

[0002]

[Prior art]

 The hinge, which has a structure that can rotate around each other about the axis, is an important basic component used in a very wide range of fields. However, since the conventional hinge merely connects the pair of hinge pieces so that they can rotate relative 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 contrary, it is known that a spring is incorporated between the hinge pieces, but such a structure has a problem in that the spring may be set or damaged.

[0003]

[Problems to be solved by the device]

 The present invention has been made by paying attention to the above-mentioned point. The problem is that the rotation of the hinge about the axis rotates lightly in one rotation and generates a larger torque in the opposite rotation. In this way, it is necessary to prevent the rotation from gaining momentum and to obtain a quiet and gentle operation.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a casing 12 having a cylindrical chamber 11 capable of being filled with a viscous fluid, and a rotatably rotatably supported around a cylindrical axis in the chamber. A rotary damper 15 including a shaft member 14 having a movable valve 13 for changing the flow resistance of the rotary damper 15 and a pair of hinge plates 16 and 16 'combined with the rotary damper 15 using the cylindrical shaft as an opening and closing shaft. First and second engaging portions 17 and 17 ′, which are located on the cylindrical shaft and engage around the shaft, are formed at one end of the casing 12 and one end of the shaft member 14, respectively, and each hinge plate 16, 16 is formed. The hinge plates 16 and 16 'are respectively provided with first and second engaging pieces 18 and 18' engageable with the engaging portions 17 and 17 'in order to integrally rotate the casing 12 or the shaft member 14 together. To take measures to establish It is intended.

[0005]

【Example】

 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 formed of a cylindrical space for filling the viscous fluid G 2 therein and for rotatably incorporating the shaft member 14 together with the movable valve 13. 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 set within a finite angle range. The shaft member 14 has a projecting 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 projecting portion 25 between the hanging pieces before and after the rotation direction. The flow resistance of the viscous fluid G is changed depending on whether the flow resistance of the viscous fluid G overlaps with that of the viscous fluid 28. Numeral 29 is a guide groove that absorbs a sudden change in torque. Reference numeral 21 denotes a cap, which is provided to support the shaft member 14 and to seal the viscous fluid G.

The first and second engaging portions 17 and 17 ′ are located on the cylindrical axis L that also functions as the rotation axis of the rotary damper 15 and generate engagement around the axis. And the shaft member 14 is provided at each end. The first engaging portion 17 of the first embodiment is a quadrangular prism, and the second engaging portion 17 'is also a rectangular prism. Of course, the shape of the engaging portions 17 and 17 'is not limited to a quadrangle, 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 to utilize 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 for attaching the hinge plate to the rotary damper 15, but in the present invention it is by engagement. For this reason, the hinge plates 16 and 16 'are provided with first and second engaging pieces 18 and 18' of the same shape that can engage with the first and second rectangular engaging portions 17 and 17 '. 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 configured as described above, one hinge plate 16 is integrated with the casing 12 by the engagement of the first engaging portion 17 and the first engaging piece 18, and the other hinge plate 16 is provided. The hinge plate 16 ′ is integrated with the shaft member 14 by the engagement of the second engaging portion 17 ′ and the second engaging piece 18 ′, and the hinge plate 16 ′ and the shaft member 14 are rotatable relative to each other about the cylindrical axis L. The hinge device is configured. 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 port 26 and the valve port 27 overlap with each other causes a small resistance and a light rotation. In the clockwise rotation shown in the figure in which the mouth 26 is blocked by the hanging piece 28, the resistance becomes large, so the rotation is slow.

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. 3 to 5. 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 series, and in order to hold the series of the dampers 15 in connection, the protrusions 19 and the recesses 19 'which can be fitted to each other are first and second. They are formed at the ends of the second engaging portions 17 and 17 ', respectively.

In order to connect the two rotary dampers 15 in cascade, two first engaging pieces 18, 18 engageable with the first engaging portions 17, 17 of the two rotary dampers 15 are provided. Two second engaging pieces 18 ', 18' which are provided along one side of the hinge plate 16 and engage with the two second engaging portions 17 ', 17' are divided into the other hinge plate 16 ', respectively. Set up. By combining two rotary dampers 15, if both dampers are of the same standard, the damping force will be twice as high as that of one damper, but even if the specifications of the dampers to be combined are different. Since it is good, the damping force in the range of 1 to 2 times can be arbitrarily selected by combining the two rotary dampers 15.

FIG. 5 shows an example of assembling the damping hinge according to the second embodiment. (A) and (b) of the figure show an example in which the hinge plates 16 and 16 'are parallel to each other, and the members 32 and 32' attached to the hinge plates 16 and 16 'are 180 degrees from each other. It can be rotated once. The figures (c) and (d) show an example where the hinge plates 16 and 16 'are in the orthogonal state where the hinge plates 16 and 16' are at a 90 degree position, and the member 32 attached to the hinge plate 16 on the rotating side is from there. 180 degree rotation is possible. In the first and second embodiments described above, the pair of hinge plates 16 and 16 'may have the same shape, so that the manufacturing is easy, and a change such that three or four rotary dampers 15 are used is also easy.

The second embodiment is an example in which a plurality of rotary dampers 15 are connected in cascade by a pair of hinge plates 16 and 16 'having a plurality of U-shaped engaging pieces 18 and 18'. Since a plurality of rotary dampers 15 can be connected by the hinge plates 16 and 16 ″ having the first and second engaging pieces 18 and 18 ′ which can be engaged with the respective rows in the second engaging portions 17 and 17 ′. 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 that can be engaged with the first engaging portions 17, and the second hinge plates 16 and 16-2. The hinge plates 16 "and 16" -2 are provided with the second engaging pieces 18 'having the engaging holes 33' engageable with the engaging portions 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 integrated by welding at the step portions 34 and 34 ′, respectively. A pair of hinge plates 16 and 16 'are formed (FIG. 7).

When the damping hinge according to the third embodiment having such a configuration is combined, it becomes compact as shown in FIG. In the drawings, the same components as those of the first and second embodiments are referred to by the reference numerals and detailed description thereof will be omitted, and the usage and operation of the third embodiment are exactly the same as those of the first and second embodiments.

[0016]

[Effect of device]

 Since the present invention is configured and operates as described above, it is possible to provide a damping hinge in which the momentum of the rotational motion can be damped 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 effect 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)

[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'.