KR840000826B1 - Offset pivot hinges with door closing devices - Google Patents

Abstract

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Description

Offset pivot hinge of closing door device with opening mechanism

1 is a cross-sectional view of one embodiment of the present invention.

2 is a cross-sectional view taken along line VII-VII of FIG.

3 to 6 are enlarged cross-sectional views of respective operating states in the main portion of FIG.

7 is an enlarged sectional view of the main portion similar to FIGS. 3 to 6 showing the preset mechanism.

The present invention relates to an automatic closing device, and more particularly to an offset pivot hinge having an automatic closing device.

Conventional pivot hinges are fitted with seats with pivot pins fixed on the seat and another seat pivotally mounted on the pivot pins so that one of these seats is fixed to the floor or the mill. Therefore, such a door is comprised so that it may rotate about a vertical pivot axis.

One such pivot hinge is known as an offset pivot hinge, but in this device the pivot pin was isolated from the vertical end of the curtain wall.

It is desirable to have an automatic closing device for these doors. In existing pivot hinges with a closed door device, the device is assembled in one of the fixed seat plates of the hinge or in a housing installed on the seat plate.

If a pivot hinge with such a closing device is used for a door, the door will always close automatically. However, it is sometimes desirable to keep the door open. If any stop mechanism is provided to keep the door open, it must overcome the strong closing force of the door closure.

Furthermore, in installing a door using such a hinge with a closed door device, a closed torque is present inside the device, and the installation work is difficult because the hinge is enlarged.

As such, when an automatic closing device is required for a door using a conventional pivot hinge, it is necessary to replace the closed hinge device.

SUMMARY OF THE INVENTION An object of the present invention is to provide an offset pivot hinge of a closing device having an opening holding mechanism for freeing the door from the closing force of the device over a predetermined opening angle range.

Another object of the present invention is to provide an offset pivot hinge of a closing device assembled to be easily detached.

It is another object of the present invention to provide an offset pivot hinge of a detachable closing door device having a device for securing a closing torque capable of closing the door completely after installing the door using the hinge. have.

In addition, it is an object of the present invention to achieve the above object with a simple and compact structure and low price.

According to the present invention, a first seat member fixed to one of a door and a bottom or a door frame, a pivot pin fixed non-rotatively to the first seat member, pivotally mounted on the pivot pin and a cylindrical case and door and A housing member consisting of a second seat member fixed to the other of the bottom or door frame, an inner member mounted to the cylindrical case rotatably with respect to the cylindrical case and connected to the pivot pin, and a coil spring disposed in the cylindrical case. In the offset pivot hinge of the closing device, which is twisted by the relative rotation of the case and the inner member to give the closing torque, the first inner ring has at least one requirement fixed to the cylindrical case and formed on the inner surface of the machine. 2 The inner ring is fixed to the inner member to be installed in the first ring with annular clearance and to have a groove of the same depth as the first ring request (B) At least one roller member is disposed in the groove with a diameter equal to the total length of the groove and the annular clearance, the outer surface of which is smaller than the annular clearance and extends at a predetermined angle over the predetermined range from the first ring request to another predetermined angle position. The roller receiving ring has at least one roller pocket including the roller member, and is disposed in the annular gap so as to constitute a closing device connected to the other end of the coil spring so that the other end of the coil spring is connected to the roller member and the second inner member. Connected to the inner member, the spiral of the coil spring is twisted while the coil spring is opened before the request of the first ring reaches the roller member in the groove, and the roller pushes the demand out of the groove, after which the coil spring is spiraled. It is not twisted and the door is freed from closing force by the twisted coil spring. That is to provide a hinge of the pivot offset CLOSING gaemun device having a holding mechanism.

According to another embodiment of the present invention, the door is opened while the second inner ring has an additional request shallower than the groove on the outer surface of the predetermined angle position away from the groove in the rotational direction of the first ring. In the meantime, the roller member accommodated in the first request can be partially pushed out as an additional request to keep the door open.

According to another embodiment of the present invention, the receiving ring has a radial protrusion adjacent to the roll member, and pushes the roller member out of the groove on the request of the first ring and then radially into the groove of the second inner ring to engage the cross section of the groove. The coil spring is twisted spirally as the door is further opened as the part is extended.

According to another embodiment of the present invention, the pivot pin is fixed to one end of the first seat member protruding outward from the plane including one side of the door, and one end of the second seat member is pivotally mounted on the pivot pin. The cylindrical case is formed to be separated from the second seat member but is mounted non-rotatively on one end surface of the second seat member by an inner joining element protruding in the axial direction, and the cylindrical case is one end of the second seat member by a fixing screw. And the inner member is connected non-rotatively with the pivot pin by the inner joining element which protrudes in the axial direction, so that the closing device has the cylindrical case, the inner member, the coil spring and the fixing screw loosened and An opening and closing mechanism which can be easily detached from the pivot hinge by movement of the cylindrical case in the axial direction not connected to the inner joint element To also.

The second inner ring is provided in the inner member and coupled non-rotatively by spline bonding, and the pivot pin is provided in the second inner ring so that it is not rotated but coupled by spline bonding detachably in the axial direction.

The first ring is non-rotatively connected to the cylindrical case by spline connection to prevent the first ring and the axial operation by one screw means radially screwed to the cylindrical case, the screw means is screwed into the annular gap The door is closed when the screw means is loosened so as to disengage the engagement of the roller member and the screw means by preventing the rotation of the cylindrical case in a corresponding direction to close the door in a state where the coil spring is twisted in a spiral at a predetermined degree by combining with the roller member. Sufficient closed oak is obtained to close completely.

The objects and features of the present invention can be easily understood from the detailed description of the embodiments by the following drawings.

1 to 2 show an embodiment of the present invention, the pivot hinge 10 is provided with a seat plate 11 fixed to the bottom or base 20, the pivot fixed to the seat plate 11 The pin support 12 is squeezed so as to rotate as the thrust ball bearing 14 and the radial bearing 15.

The pivot pin 12 is fixed to one end 111 of the door frame side seat 11, and the other end 112 of the seat plate has a bolt hole 11a for fixing the seat plate 11 to the floor. have. The door support plate 13 has a hole 13a formed at its end portion 131 to fix the radial bearing 15 therein, and a bolt hole 13b formed at the other end portion 132 to form a support plate ( 13) can be fixed to the lower part of the door 21 by bolts. In this way, the door 21 is squeezed to the pivot hinge 10 for rotation. The closing device 30 is attached to the pivot hinge 10 so that it can be easily detached.

The closing device 30 is connected to the cylindrical case 31 (or the housing) and the pivot pin 12 connected by the door side seat 13, and is disposed in the cylindrical case 31 and consists of the inner cylinder member 32. . The coil spring 33 is one end is connected to the cylindrical case 31 and the lower end is configured to be connected to the inner cylinder member 32 is twisted in a spiral when opening the door. The restoring force of the twisted spring acts as a closed torque.

In an embodiment, the ring member 34 is fixed to the cylindrical case 31 and the upper pin 35 and the upper end of the coil spring 33 is fixed to the ring member 34 with a pin (not shown). The damper shaft 37 is disposed in the cylindrical case 31 in a fixed state and fixed to the upper ring 34 at its upper end by a rivet 35. The inner cylinder member 32 is a cylinder head ring 321 mounted to the damper shaft 37 so as to know the rotation, and a cylinder 322 fixed to pins (not shown) to the cylinder head 321 at the upper end thereof. And a leg 323 welded to the lower end of the cylinder 322. The cup member 323 has a central protrusion 323a extending downward.

The ring member 55 is fitted to the lower end of the cylindrical case 31 and is coupled with a wedge fit and a screw (55). The other ring member 57 is disposed in the ring 55 and coupled to the downward projection 323a of the lower ring member 323 in a fitting manner. The roller receiving ring 58 is disposed between the inner and outer ring members 55 and 57. The roller receiving ring 58 forms at least one roller receiving groove 58a (two receiving grooves are shown), in which a roller is arranged. The end plate 60 is disposed to be in contact with the lower end of the receiving ring 58, but is fixed to the outer ring 55 as a snap ring 61. The receiving ring 58 has a notch groove 58b formed at an upper end thereof, and a lower end of the coil spring 33 is coupled thereto. Therefore, the axial movement of the receiving ring 58 is constrained by the spring 33 and the end plate 60. The gap between the outer surface of the inner ring 57 and the inner surface of the outer ring 55 is shorter than the diameter of the roller 59 and longer than the radius. The inner ring 57 is formed with at least one groove to fit the receiving ring. The groove 57a is formed with a predetermined steaming. The inner ring 57 has a shoulder 57c at the top close to the groove 57a. Since the shoulder is engaged with the roller, the inner ring 57 is prevented from being axially separated from the protrusion 323b of the lower cup member 323.

In the cylindrical case 31, the lower protrusion part 13a is formed so that the cylindrical case 31 may be matched with the non-circular main surface 131a of the edge part 131 of the rubbing board 13. As shown in FIG. The extended end 12a of the pivot pin 12 is formed with a plurality of axial grooves so that the end 12a is connected to the inner ring 57 by wedging when the end 12a is fitted into the hole of the inner ring.

Therefore, the inner ring 57 and the lower protrusion end 31a of the cylindrical case 31 are coupled to the extension end 12a of the pivot pin 12 and the outer end surface 131a of the rubbing pin 13, respectively. When the device is assembled to the pivot hinge 10, the inner cylinder member 32 is connected to the pivot pin 12 through the inner ring 57, the communication case is connected to the door support plate (13). Therefore, the cylindrical case 31 is rotated with respect to the inner cylinder member 32.

In order to prevent the pivot hinge of the closing door device from automatically popping out during use, one fixing screw (not shown) is partially provided with the extension part 31a of the cylindrical case 31, so that the cylindrical case 31 is partially Therefore, the extension part 31a is fixed to the door side seat 13 in the state fixed on the non-circular periphery end surface of the door side seat 13.

As described above, when the closing device 30 is easily attached to the pivot hinge 10, it can also be easily removed. Therefore, the installation work of the door is easy to install the door because it uses a pivot hinge without the closing device, the closing device can be easily attached to the pivot hinge as needed. In addition, when the closing device is not necessary, it can be removed immediately at any time.

The torque braking mechanism is provided in the above embodiment in order to prevent sudden closure by the restoring force of the coil spring.

The cylinder 322 of the inner cylinder member 32 forms a spiral groove 322a on its inner surface, and the piston member 42 formed integrally with the screw shown by 42a on its outer circumferential surface has its outer screw ( 4 2a) is mounted in the cylinder 322 to engage with the spiral groove 322a. The piston member 42 is a hollow body, and the lower end of the damper shaft 37 extends in the hollow portion. The damper shaft 37 is connected by wedging therebetween to guide the piston member 42 to be slidable but not rotated. Accordingly, the piston member 42 moves upward or downward by extending the damper shaft 37 by the rotation of the cylinder member 32 with respect to the cylindrical case 31.

The hollow piston member 42 is closed by a valve plate 421 welded to its lower end, and the valve plate 421 is integrally formed with the piston member 42. The valve plate 421 has a small hole 421a having a valve bowl 422 and another small hole 421b. The braking oil 43 is contained in the inner cylinder member 32 and attenuates the closing speed by braking the movement of the piston member 42.

When the door is opened, the piston member 42 moves upward in the above embodiment, and the braking oil 43 flows downward through the small holes 421a and 421b. When the door is closed, the piston member 42 moves downward. In addition, in some cases, the braking oil flows upward through the small holes 42 1b, but the other small holes 421a are closed by the valve bowl 422. In this manner, the valve bowl 422 serves as a check valve. Therefore, the flow of oil is limited by the check valve when the closing operation, the movement speed of the piston member 42 is limited. That is, the closing speed is attenuated.

In addition, the closing speed can be adjusted by adjusting the speed control rod 44, and the speed control rod forms an inclined surface 44a, and extends through the hole 421b, and the oil is disposed between the inclined surfaces 44a. Pass through. The upper end of the governing rod 44 is fixed to a screw 45 screwed into the adjustment groove 37a of the damper shaft 37. The screw 45 is comprised by the center square hole 45a by which the adjustment shaft 46 was provided slidingly, and the square shaft 46 is rotatably fixed to the braking shaft 37. The square shaft 46 is formed with a groove 46a of the upper end surface into which the driver end can be inserted. Therefore, when the square shaft 46 rotates as a driver, the screw 45 and the governing rod 44 are moved while rotating in the upward direction along the rotational direction of the square shaft 46. As a result, the oil flow gap that is soft on the inclined surface 44a of the governing rod 44 in the hole 421b is adjusted and changed.

Another advantage of using a slope of the governing rod is that a greater braking effect can be obtained at a larger opening angle position.

In FIG. 1, 47 is an upper cap, and 48, 49 and 50 are zero rings for sealing the inner diameter of the inner cylinder member 32. As shown in FIG.

According to FIG. 2, the roller 59 is accommodated in the cutout groove 57a and constrained in the inner surface of the outer ring 55, and the receiving ring 58 is cylindrical through the coil spring 53 because of the roller 59. Move with the case 55. Accordingly, the coil spring 33 is twisted when the door is opened and its restoring force acts as a closed torque.

In an embodiment, the inner ring 57 is formed with two roller grooves 57b on its outer surface at different angles from the cutting groove 57a. The outer ring 55 is also provided with two roller grooves 55a at predetermined angles such as the notch grooves 57a. Each pair of the cutout groove 57a and the recess 55a is combined with the roller 59 to serve as a stopper. In order to simplify the specification, the notch groove 57a, the roller 59, the roller groove 57b and the groove 55a are described in the following description, and the same description is the same as a separate technical component and thus will be omitted.

When opening the door, the cylindrical case 31 rotates from the closed state of FIG. 2 to the open state of FIG. 3, and the coil spring 33 is twisted so that the restoring force U (shown in FIG. 2) pushes the roller 59. It is to be separated from the groove (57a). Therefore, when the cylindrical case 31 is further rotated in the state of FIG. 3, the roller 59 is accommodated into the recess 55a of the outer ring 55 as shown in FIG. 4. When the cylindrical case 31 is rotated further, the roller 59 moves along the outer surface of the inner ring 57 like the outer ring 55. Therefore, the receiving ring 58 also moves together with the long roller 59 and the outer ring 55. Therefore, when the roller is accommodated in the groove 55a, the coil spring 33 is not twisted. When the door is further opened and the roller 59 of the groove 57a of the inner ring reaches, it is due to the restoring force acting on the roller 59 through the outer ring 55 and the receiving ring 58 as indicated by the arrow U '. By the centrifugal force N, the long roller 59 is pushed into the groove 57b0.

As in FIG. 5, when the roller 59 is accommodated in the grooves 55a and 57b, the long roller 59 prevents the outer ring 55 from rotating with respect to the inner ring 57, thereby closing the door. In order to prevent the restoring force from acting on the cylindrical case, the roller 59 is stopped at an angle accommodated in the recesses 55a and 57b. In order to move the door from the stop position, an external force greater than the centrifugal force N must be applied to the door. In this case, the roller 59 is separated from the groove 57b and stored in the groove 55a so that the outer ring 55 can rotate with respect to the inner ring 57.

When the roller 59 is accommodated in the recess 55a, the housing ring 58 rotates together with the roller 59 and the outer ring 55. Therefore, no door closing torque is greater than the angle at which the roller 59 moves from the notch 57a to the groove 55a.

In an embodiment, the receiving ring 58 is provided with a radial projection 58c proximate the roller 59 inside the receiving portion 58a. The protrusion 58 is arranged to correspond to the notch groove 57a so as to contact the roller accommodated in the groove. When the roller 59 is disengaged from the groove 55a, the radial protrusion 58c is fitted with the end wall 57a-1 of the groove 57a when the outer ring is rotated by a larger opening when the roller 59 is stored in the groove 55a. Is reached. Therefore, the receiving ring 58 is prevented from rotating together with the roller 59 and the outer ring 55 as shown in FIG. 6 so that the coil spring is moved by the larger rotation of the outer ring 55 moving with the door. It will be twisted more loudly.

According to FIGS. 3 and 4, when opening the door, the end K with respect to the center L of the groove 55a is formed by centering the center 0 'of the inner ring 57 and the center 0' of the roller 59. After reaching the OMEGA line of the 0-0 'line to connect, the roller 59 moving angle β around the inner ring 57, which is completely fitted in the groove 55a, is the rotation angle of the outer ring 55 smaller than θ), the cylindrical case and the literature move simultaneously. Therefore, the coil spring is twisted when the door is opened but smaller than the opening angle of the door. Therefore, the coil spring 33 no longer twists when the door is opened larger as described above. Further opening the door, the coil spring 33 is twisted in rain when the receiving ring 58 is stopped in engagement with the radial projection 58 c and the end portion 57a-1 of the cutout groove 57a. .

The recess 57b, which is the stopper mechanism in the embodiment, is formed such that the receiving ring 58 is at an angle within the range of the trajectory along which the roller and the outer ring move. Screw 56 is also a preset screw.

According to FIG. 7, the screw 56 is screwed into the gap between the inner ring 57 and the outer ring 55 to be in contact with the outer circumferential wall of the roller 59 with the coil spring 59 twisted. The rotation of the outer ring and the cylindrical case due to the restoring force of the coil spring 33 is prevented by the combination of the roller 59 and the preset screw 56.

When the closing device 30 is assembled on the pivot hinge 10 and the preset screw 56 is released, the door is automatically closed due to the restoration of the coil spring 33. Although the present invention has been described in detail in the above embodiments, the above embodiments are only embodiments of the present invention, and the present invention is not limited to the above practical examples. Other changes and imitations can be easily made within the scope of the present invention can be understood by anyone skilled in the art.

Claims (1)

A housing member composed of a first seat member fixed to the door frame and a pivot pin fixedly pivotally fixed to the first seat member, the housing member consisting of a cylindrical case and a second seat member fixed to the door; In the offset pivot hinge of the closing device in which the inner member connected to the pivot pin and the coil spring disposed in the cylindrical case are twisted by the relative rotation of the cylindrical case and the inner member so that the closing torque is given, the outer ring is cylindrical It is fixedly coupled to the case and forms at least one demand on its inner surface. The inner ring is fixedly coupled to the inner member and installed in the outer ring with annular clearance and has a cutout groove of the same depth as the outer ring demand but less than the annular clearance. At least one of its outer surfaces extending from the outer ring request to another predetermined angle position by a certain angle over a predetermined range The roller member of the roller is disposed in the cutout groove with the diameter equal to the total length of the groove and the annular gap, and the long roller bearing ring includes the roller member but has at least one roller housing part and is rotated in the annular gap. By constructing a closing device connected to the other end of the coil spring, the other end of the coil spring is connected to the inner member through the roller member and the second inner ring, so that the coil of the first ring before the request reaches the roller member in the groove. The spiral is twisted in the spiral while the spring is opened and the roller is pushed out of the notch groove into the groove (55a) (57b), after which the coil spring is not twisted in the spiral and the door is kept open at a certain position. Offset pivot hinge on closing device with opening mechanism.

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