JP3641666B2 - Hinge - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, one mounting plate is attached to a rotating lid or a rotating door that rotates in the range of about 90 to 120 degrees to the left or right or up and down to open or close an opening or a frame. Further, the present invention relates to a hinge that is used by fixing the other mounting plate to an appropriate portion of a stationary part such as an opening or a frame.
[0002]
[Prior art]
For example, hinges used for revolving lids used for laptop computers, pianos, Western-style toilets, etc., or revolving doors used for entrance doors, indoor doors, etc. It has two cylindrical bodies arranged in a shaft, and a shaft body inserted so as to straddle the two cylindrical bodies. Then, by attaching one mounting plate to the door or the like and the other mounting plate to the wall portion of the frame body to which the door or the like can be attached, the one cylindrical body rotates together with the door or the like around the shaft body. Is provided.
[0003]
Further, for example, if the door or the like is pushed in the closing direction with a hand or the like, the door or the like may collide with the frame at the end of the closing rotation, and the door or the frame may be damaged. For this reason, a viscous liquid is filled in the gap formed between the cylinder and the shaft, and a valve mechanism is provided in the gap. When the cylinder moves in the opening direction, a large amount of the viscous liquid moves. On the other hand, a rotating damper structure that can be opened relatively easily, but when moving in the closing direction, the viscous liquid is moved only from the orifice hole and the closing operation can be delayed. A built-in hinge is also used. In some cases, the opening operation is delayed by incorporating a rotary damper.
[0004]
[Problems to be solved by the invention]
However, in the case of the hinge using this rotary damper, the closing operation or the opening operation can surely be delayed, but depending on the user's preference, the operation feels too slow or too fast. There is a case. In addition, since the weight varies depending on the type of door to which the hinge is attached, the use of a rotary damper having only a constant braking force will cause the operating speed of the door to be different when closing or opening. Depending on the type, the operation speed may be too slow or too fast. However, conventionally, in such a case, for example, it has been very difficult for an operator to adjust at the user level at the site or after installation.
[0005]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a hinge incorporating a rotary damper that can easily adjust the braking force of the rotary damper.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the hinge of the present invention includes a mounting plate, and has a plurality of cylinders arranged in a column.
The shaft body is disposed so as to straddle the plurality of cylinders, and has a groove portion provided at a predetermined depth along the axial direction from one end side thereof, and on the peripheral wall of the groove portion in the axial direction. Along the shaft body in which orifice holes communicating the gap formed by the outer peripheral surface of the shaft body and the inner peripheral surface of the cylindrical body and the groove portion are formed at a predetermined interval, and in the groove portion of the shaft body An orifice adjusting rod which is arranged so as to be able to advance and retract and which can adjust the number of orifice holes which are substantially open;
It is characterized by having.
In this case, a spring member can also be provided in one cylinder.
[0007]
Embodiment
Embodiments of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a hinge, which includes a first cylinder 2, a second cylinder 3, a shaft 5, an orifice adjusting rod 6, and the like.
[0008]
The first cylindrical body 2 and the second cylindrical body 3 are each provided with mounting plates 2a and 3a projecting along the axial direction from appropriate positions around the first cylindrical body 2 and the second cylindrical body 3, respectively. Specifically, each of the first and second cylindrical bodies 2 and 3 has an insertion hole 4a for inserting the shaft body 5 in a substantially central portion, and one portion 4b with the substantially central portion in the axial direction as a boundary. A male threaded portion 4b formed on the inner circumferential surface of the first cylindrical body 2 is screwed into the male threaded portion 4c of the joint pipe 4 in which a male threaded portion 4c is formed on the outer peripheral wall of the joint tube 4. The second cylinder 3 is inserted into the other part 4d so as to be rotatable while being in sliding contact with the outer peripheral surface of the other part 4d. In addition, the code | symbol 4e is a packing for fixation.
[0009]
The shaft body 5 has substantially the same length from one end to the other end when the first cylinder 2 and the second cylinder 3 are arranged in tandem, and the joint pipe 4 is inserted through the shaft 5. In the example shown in the drawing, an appropriate number of annular spacers, which are inserted through the holes 4a and are connected to the joint pipe 4, are adjacent to the joint pipe 4, near the end of the first cylinder 2, and Three spacers 7, 8, 9 are arranged near the end of the second cylindrical body 3. In addition, lid members 10 and 11 are disposed outside the spacers 8 and 9 disposed near the end of the first cylinder 2 and near the end of the second cylinder 3, respectively. The spacers 7, 8, 9 and the lid members 10, 11 are disposed so as not to rotate with respect to the first cylinder 2 and the second cylinder 3 and to rotate relative to the shaft body 5. ing. The method of arranging in this way is not particularly limited. For example, knurling is performed on the outer peripheral surfaces of the spacers 7, 8, 9 and the lid members 10, 11 and the inner peripheral surfaces of the cylindrical bodies 2, 3. Can be performed.
[0010]
A valve mechanism 50 projects from the outer peripheral surface of the shaft body 5. The valve mechanism 50 has a length along the axial direction of the shaft body 5 such that the length along the radial direction of the first cylinder 2 is in contact with the inner peripheral surface of the first cylinder 2. A partition wall 51 is formed which is substantially the same as the distance between the spacer 7 and the spacer 8 and has a substantially sectoral cross section (see FIG. 2). However, the partition wall 51 is not limited to this as long as it is formed in such a size and shape that the viscous liquid is not moved from other than a predetermined location. And by this partition part 51 and the partition wall part 20 protrudingly provided in the internal peripheral surface of the 1st cylinder 2, and having the substantially same shape as this partition part 51, the internal peripheral surface of the 1st cylinder 2 The gap 21 formed by the outer peripheral surface of the shaft body 5 and the spacers 7 and 8 is further divided into two liquid chambers 21a and 21b. The two liquid chambers 21a and 21b are filled with a viscous liquid (not shown).
[0011]
Further, the partition wall 51 is provided with a cavity 51a, and the first and second liquid passages pass through the walls 51b and 51c on both sides of the cavity 51a so as not to face each other. Holes 51d and 51e are formed. A plate-like valve body 52 is disposed in the cavity 51a. The valve body 52 has a thickness smaller than the interval along the circumferential direction of the cavity 51, and one of the first and second liquid passage holes 51d and 51e formed in the walls 51b and 51c. A third liquid passage hole 52a formed at a corresponding position is provided. In the example shown in the drawing, the third liquid passage hole 52a is formed at a position corresponding to the first liquid passage hole 51d. As a result, when the first cylindrical body 2 rotates in the X direction, the valve body 52 comes into contact with the wall portion 51c, so that the viscous liquid moves from the other liquid chamber 21b to the one liquid chamber 21a. Since the valve body 52 comes into contact with the wall 51b when the rotation is performed in the Y direction on the contrary, the viscous liquid moves not only from the orifice hole 54. This is also performed through the liquid passage holes 51d, 51e, and 52a.
[0012]
Note that a part of the partition wall portion 20 protruding from the inner peripheral surface of the first cylindrical body 2 is cut out, and an accumulator 22 is disposed in the cut out portion. This is because when the viscous liquid thermally expands or when the volume of the portion containing the viscous liquid is reduced by allowing the orifice adjusting rod 6 described later to enter the groove portion 53 formed in the shaft body 5, the excessive viscosity is increased. The liquid is arranged to be accommodated through the communication hole 22a.
[0013]
In the example shown in the drawing on the one end side of the shaft body 5 described above, a groove portion 53 having a predetermined depth is formed along the axial direction from the end portion on the first cylindrical body 2 side. In addition, a predetermined number of orifice holes 54 are provided in the peripheral wall of the groove portion 53 so as to communicate with each other between the one liquid chamber 21a and the other liquid chamber 21b via the groove portion 53 at a predetermined interval along the axial direction. ing.
[0014]
The orifice adjusting rod 6 is formed with a diameter that can be inserted into the groove portion 53 of the shaft body 5, and a male screw portion 6 a is formed on a part of the outer peripheral surface. And it is arrange | positioned so that the inside of this groove part 53 can be advanced / retreated by screwing in the internal thread part 53a formed in the internal peripheral surface of the groove part 53 of the shaft body 5. FIG. That is, when the orifice adjusting rod 6 is screwed into the groove portion 53, the number of orifice holes 54 blocked by the orifice adjusting rod 6 increases, and the orifice adjusting rod 6 is turned in the reverse direction to move away. As the position is moved, the number of orifice holes 54 closed by the orifice adjusting rod 6 decreases.
[0015]
Here, in the figure, reference numeral 12 denotes a spring member disposed in a gap 31 formed by the inner peripheral surface of the second cylinder 3, the outer peripheral surface of the shaft body 5, the joint pipe 4, and the spacer 9. The one end 12a is fixed to the joint tube 4 fixed to the first cylinder 2 so as not to rotate, and the other end 12b is fixed to the second cylinder 3 so as not to rotate. 9 is fixedly disposed. The coil spring 12 is twisted by twisting the mounting plates 2a and 3a by rotating the first cylinder 2 or the second cylinder 3 attached to the side of the revolving door such as a door in one direction. The first cylinder 2 or the second cylinder 3 is disposed to urge the first cylinder 2 or the second cylinder 3 in the reverse direction. When attaching to a door, etc., it is usually set so that the door is opened and the attached hand is released, so that it is closed by the return force of the coil spring 12, but it is not limited to this. Depending on the type of the rotating lid and the rotating door, the return force of the coil spring 12 can be applied when operating in the opening direction. The spring member is not limited to the coil spring 12 shown in the drawing, and any spring member may be used as long as it performs the same function.
[0016]
Next, the operation of the hinge 1 having such a configuration will be described. For example, the mounting plate 2a of the first cylinder 2 is fixed to the door (not shown), and the mounting plate of the second cylinder 3 is fixed to the wall portion (not shown) of the frame body on which the door is disposed. To do. If the state shown in FIG. 1 is a state when the door is closed, the first cylinder 2 is rotated in the Y direction of FIG. 2 together with the mounting plate 2a and the door by opening the door. At this time, due to the movement of the viscous liquid, the valve body of the valve mechanism 50 provided on the shaft body 5 is pressed toward the one wall 51 b side of the partition wall 51. Accordingly, the second liquid passage hole 51e provided in the other wall portion 51c is opened, and the third liquid passage hole 52a provided in the valve body 52 and the first liquid portion provided in the one wall portion 51b. Since the liquid passage hole 51d communicates, a large amount of viscous liquid moves from one liquid chamber 21a to the other liquid chamber 21b. As a result, the door can be smoothly opened without much resistance when opened. At this time, the coil spring 12 is screwed because one end 12 a is fixed to the joint tube 4 fixed to the first cylinder 2 and the other end 12 b is fixed to the spacer 9 in the second cylinder 3. Will be.
[0017]
When the hand attached to the door knob is released after the door is opened, the first cylinder 2 is rotated in the reverse direction (X direction in FIG. 2) by the restoring force of the coil spring 12. When rotating in the X direction, the valve body 52 is pressed against the other wall 51c, and closes the second liquid passage hole 51e provided in the other wall 51c. As a result, the movement of the viscous liquid is performed only from the orifice hole 54 formed in the peripheral wall of the shaft body 5, a predetermined braking force acts, and the door closing operation is delayed.
[0018]
When this braking force is large and the door closes too slowly, the orifice adjusting rod 6 is turned in the disengagement direction to increase the number of orifice holes 54 that are substantially open. On the other hand, when the braking force is small, the orifice adjusting rod 6 is further inserted into the groove 53 to reduce the number of orifice holes 54 that are substantially open. As the number of orifice holes 54 opened increases, the amount of viscous liquid that moves from the other liquid chamber 21b to the one liquid chamber 21a when the door is closed increases, and the closing speed of the door increases. The more the viscous liquid moves, the lower the closing speed of the door.
[0019]
Of course, the hinge of the present invention is not limited to the above-described embodiment. For example, even if a spring member such as the coil spring 12 is not provided, the first hinge If the valve mechanism 50, the orifice hole 54, and the orifice adjusting rod 6 disposed in the cylindrical body 2 are provided, the closing operation can be delayed when the cylinder body 2 is closed with force. .
[0020]
In addition, the valve mechanism is not limited to the structure described above. When the valve mechanism is rotated in the direction in which the braking force is desired to be exerted, the viscous liquid is moved only from the orifice hole, and when the valve mechanism is rotated in the reverse direction. Any structure that can move a large amount of viscous liquid may be used. Accordingly, for example, various known modes such as the position of the liquid passage hole and the shape of the valve body can be used. Furthermore, in the above-described example, a description has been given of a hinge in which two cylinders 2 and 3 are arranged in a column. However, even in a hinge in which three or more cylinders are arranged in a column, any one of them is used. It is also possible to adjust the braking force by providing the valve mechanism, the orifice hole, and the orifice adjusting rod provided in the first cylinder described above in one cylinder.
[0021]
【The invention's effect】
According to the hinge of the present invention, since the orifice adjusting rod can be moved back and forth to increase or decrease the number of orifice holes formed in the substantially open shaft body, The braking force can be easily adjusted according to the type of preference or door.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of a hinge according to the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hinge 2 1st cylinder 3 2nd cylinder 4 Joint pipe 5 Shaft body 53 Groove part 54 Orifice hole 6 Orifice adjustment rod

Claims (2)

In hinges each having a mounting plate and having a plurality of cylinders arranged in a column,
The shaft body is disposed so as to straddle the plurality of cylinders, and has a groove portion provided at a predetermined depth along the axial direction from one end side thereof, and on the peripheral wall of the groove portion in the axial direction. Along the shaft body in which orifice holes communicating the gap formed by the outer peripheral surface of the shaft body and the inner peripheral surface of the cylindrical body and the groove portion are formed at a predetermined interval, and in the groove portion of the shaft body An orifice adjusting rod which is arranged so as to be able to advance and retract and which can adjust the number of orifice holes which are substantially open;
The hinge characterized by having. The hinge according to claim 1, wherein a spring member is disposed in one cylindrical body.

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