Apparatus for guiding rotation of gear hinge part in rotary door

Abstract

The present invention relates to a device capable of guiding a stable rotational actuation between a first support bracket fixedly connected to a supporting frame side of a door frame and a second support bracket fixedly connected to the door side in a gear hinge unit constituting a rotating door, specifically, in a door hinge in which a gear hinge unit is provided between the first support bracket fixedly connected to the support frame side of the door frame and the second support bracket fixedly connected to the door side, by minimizing the compressive stress generated in the lower gear hinge unit under a neutral axis of the door and the tensile stress generated in the upper gear hinge unit above the neutral axis of the door by the rotational moment applied to the gear hinge unit due to the load of the door, it is possible not only to secure and maintain the correct opening/closing performance of the door, but also to minimize damage to parts caused by friction or friction noise in the door hinge.

Claims

1. An apparatus for guiding a stable rotating actuation of a gear hinge unit in a rotating door between a first support bracket (1150) fixedly connected to a supporting frame (1100) side of a door frame and a second support bracket (1250) fixedly connected to a door (1200) side in the gear hinge unit (1300) constituting the rotating door (1000), in order to minimize a tensile stress generated in an upper part of the gear hinge unit (1300) above a neutral axis (a-a) of the door (1200) and a compressive stress generated in a lower part of the gear hinge unit (1300) under the neutral axis (a-a) of the door (1200) by a rotational moment applied to the gear hinge unit (1300) through the second support bracket (1250) due to the load of the door (1200), comprising: a fixed first vertical support (1510) installed at a lower end of the supporting frame (1100) of the door frame, comprising a fixed end (1512) fixedly installed to the supporting frame (1100) of the door frame, and a first rotational guide body being placed in a center part of a trajectory arc of the rotational actuation of a gear portion (1250a) of the second support bracket (1250) of the door (1200) and having a first vertical contact surface (1510a), (1510b) corresponding to a trajectory arc of a rotational actuation of the gear portion (1250a) of the second support bracket (1250) of the door (1200); and a rotating second vertical support (1520) installed at a lower end of the door (1200), comprising a fixed end (1522) fixedly installed to the door (1200), and a second rotational guide body being placed on the trajectory arc of the rotational actuation of the gear portion (1250a) of the second support bracket (1250) of the door (1200) and having a second vertical contact surface (1520a), (1520b) in line contact with a first vertical contact surface (1510a), (1510b) corresponding to the trajectory arc of the rotational actuation of the gear portion (1250a) of the second support bracket (1250) of the door (1200).

2. The apparatus according to claim 1, characterized in that, in case that the first vertical contact surfaces (1510a) and (1510b) provided to the first vertical support (1510) are convex contact surfaces (1510a), the second vertical contact surfaces (1520a), (1520b) provided to the second vertical support 1520 is formed by a concave contact surface (1520a); and in case that the first vertical contact surfaces (1510a) and (1510b) provided to the first vertical support (1510) are concave contact surfaces (1510b), the second vertical contact surfaces (1520a), (1520b) provided to the second vertical support 1520 is formed by a convex contact surface (1520b).

3. The apparatus according to claim 2, characterized in that, through a rotation opening/closing process of the door (1200), a change distance (Ro) of a contact line in which a line contact is made on the first vertical contact surfaces (1510a) and (1510b) provided in the first vertical support (1510) is formed to be larger than a change distance (Lo) of a contact line in which a line contact is made on the second vertical contact surfaces (1520a) and (1520b) provided in the second vertical support (1520).

4. The apparatus according to claim 2, characterized in that, the first vertical contact surfaces (1510a) and (1510b) provided on the first vertical support (1510) are provided with both the concave contact surface (1510a) and the convex contact surface (1510b), and the second vertical contact surfaces (1520a) and (1520b) provided on the second vertical support (1520) are provided with both the convex contact surface (1520b) and the concave contact surface (1520a) corresponding to the first vertical contact surfaces (1510a) and (1510b), respectively.

5. The apparatus according to claim 3, characterized in that, the first vertical contact surfaces (1510a) and (1510b) provided on the first vertical support (1510) are provided with both the concave contact surface (1510a) and the convex contact surface (1510b), and the second vertical contact surfaces (1520a) and (1520b) provided on the second vertical support (1520) are provided with both the convex contact surface (1520b) and the concave contact surface (1520a) corresponding to the first vertical contact surfaces (1510a) and (1510b), respectively.

6. The apparatus according to claim 4, characterized in that, the concave contact surface (1510b) of the first vertical contact surfaces (1510a), (1510b) provided to the first vertical support (1510) is formed to contact the convex contact surface (1520b) of the second vertical contact surfaces (1520a) and (1520b) provided to the second vertical support (1520) in a door closed state, and in an inflection section passing an inflection point at which a contact portion is changed from the concave contact surface (1510b) to the convex contact surface (1510a) in the first vertical contact surfaces (1510a), (1510b) provided to the first vertical support (1510), the inflection section is formed such that contact stress of the line contact portion is reduced due to an increase in a number of contact line as the contact portion is changed.

7. The apparatus according to claim 5, characterized in that, the concave contact surface (1510b) of the first vertical contact surfaces (1510a), (1510b) provided to the first vertical support (1510) is formed to contact the convex contact surface (1520b) of the second vertical contact surfaces (1520a) and (1520b) provided to the second vertical support 1520 in a door closed state, and in an inflection section passing an inflection point at which a contact portion is changed from the concave contact surface (1510b) to the convex contact surface (1510a) in the first vertical contact surfaces (1510a), (1510b) provided to the first vertical support (1510), the inflection section is formed such that contact stress of the line contact portion is reduced due to an increase in a number of contact line as the contact portion is changed.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) FIG. 1 is a perspective view of an installation state of a rotating door, and is an enlarged view of an upper end portion.

(2) FIG. 3 is a perspective view of the installed state of the rotating door, an enlarged view of the lower end portion.

(3) FIG. 2 is an exploded perspective view illustrating the gear hinge unit constituting the door hinge of the rotating door of FIGS. 1 and 3 separated;

(4) FIGS. 4 to 7 are cross-sectional views in operation of the gear hinge unit shown in FIG. 2, specially, FIG. 4 is a folded state of the second support bracket connected to the door, and FIG. 7 shows the state that the second support bracket is rotated so that the door is fully opened.

(5) FIG. 8 is a view illustrating a change in the engagement (meshing) state of the gear unit according to a change in the rotation angle between the first support bracket and the second support bracket of the gear hinge unit.

(6) FIG. 9 is a view illustrating a state in which a vertical (longitudinal) relative displacement occurs between the first support bracket and the second support bracket of the gear hinge unit.

(7) FIG. 10 is an exploded rear perspective view of the gear hinge unit, and FIG. 11 is an assembly view showing the assembly state of a vertical locking means in the main part (K) of FIG. 10 from the front direction.

(8) FIG. 12 is a view illustrating a state in which the meshing state of the gear part is changed according to a change in the rotation angle between the first support bracket and the second support bracket in the gear hinge unit of FIG. 10.

(9) FIG. 13 is a front view showing a closed state of the door as a gear hinge unit is installed on the rotating door in a state in which the rotation actuation guide device of the gear hinge unit of the rotating door according to the present invention is not installed;

(10) FIG. 14 is a view taken along the cross section of the line a-a of FIG. 13;

(11) FIG. 15a is a view along the upper section of the line a-a in the state in which the door is opened in FIG. 14; and FIG. 15b is a view along the lower section of the line a-a in the state in which the door is opened in FIG. 14.

(12) FIG. 16 is a perspective view of the lower part of the door in a closed state of the rotating door showing a preferred embodiment of the present invention;

(13) FIG. 17 is an enlarged view of the gear hinge unit (Part H) of the rotating door shown in FIG. 16; and

(14) FIG. 18 is an enlarged view of the rotational actuation guide device part (Part G) installed under the gear hinge unit, and additionally includes a cross-sectional view of the coupling state between the first vertical support and the second vertical support in the closed state of the door.

(15) FIG. 19 is a perspective view of the lower part of the door in a state in which the door is opened at about 45 of the rotating door showing a preferred embodiment of the present invention;

(16) FIG. 20 is an enlarged view of a gear hinge unit (Part H) of the rotating door shown in FIG. 19; and

(17) FIG. 21 is an enlarged view of the rotational actuation guide device part (Part G) installed under the gear hinge unit, and additionally includes a cross-sectional view of the coupling state between the first vertical support and the second vertical support when the door is opened by about 45.

(18) FIG. 22 is a perspective view of the lower part of the door in a state in which the door is opened by about 90 of the rotating door showing a preferred embodiment of the present invention;

(19) FIG. 23 is an enlarged view of a gear hinge unit (Part H) of the rotating door shown in FIG. 22; and

(20) FIG. 24 is an enlarged view of the rotational actuation guide device (Part G) installed under the gear hinge unit, additionally includes a cross-sectional view of the coupling state between the first vertical support and the second vertical support in the state that the door is opened by about 90.

(21) FIG. 25 is a operation state diagram showing a change in the position of the second vertical support relative to the first vertical support in the fixed position during the rotational opening and closing actuation of the door in the range of about 180 in the door in which the rotation actuation guide device according to the present invention is installed.

(22) FIG. 26 is an enlarged view illustrating portions of the first vertical support and the second vertical support in FIG. 25.

MODES OF THE INVENTION

(23) Hereinafter, embodiments that are easily performed by those skilled in the art will be described in detail with reference to the accompanying drawings. However, the embodiments of the present invention may be achieved in several different firms and are not limited to the embodiments described herein.

(24) FIG. 16 is a perspective view of the lower part of the door in a closed state of the rotating door showing a preferred embodiment of the present invention; FIG. 17 is an enlarged view of the gear hinge remit (Part H) of the rotating door shown in FIG. 16; and FIG. 18 is an enlarged view of the rotational actuation guide device part (Part G) installed under the gear hinge unit, and additionally includes a cross-sectional view of the coupling state between the first vertical support and the second vertical support in the closed state of the door.

(25) Also, reference may be made to FIGS. 20 to 22 as views respectively corresponding to FIGS. 16 to 19 as views of a state in which the door is opened by about 45. In addition, as a view of a state in which the door is opened by about 90, reference may be made to FIGS. 23 to 25 as views respectively corresponding to FIGS. 16 to 19 or FIGS. 20 to 22 above.

(26) First, a preferred embodiment of the rotation actuation guide device of the rotating door according to the present invention will be described with reference to the accompanying drawings.

(27) As shown in FIGS. 17 to 24, a preferred embodiment of the present invention provide an apparatus for guiding a stable rotating actuation of a gear hinge unit in a rotating door between a first support bracket 1150 fixedly connected to a supporting frame 1100 side of a door frame and the second support bracket 1250 fixedly connected to the door 1200 side in the gear hinge unit 1300 constituting the rotating door 1000,

(28) in order to minimize a tensile stress generated in an upper part of the gear hinge unit 1300 above a neutral axis a-a of the door 1200 and a compressive stress generated in a lower part of the gear hinge unit 1300 under the neutral axis a-a of the door 1200 by a rotational moment applied to the gear hinge unit 1300 through the second support bracket 1250 due to the load of the door 1200, comprising:

(29) a fixed first vertical support 1510 installed at a lower end of the supporting frame 1100 of the door frame, comprising a fixed end 1512 fixedly installed to the supporting frame 1100 of the door frame, and a first rotational guide body being placed in a center part of a trajectory arc of the rotational actuation of the gear portion 1250a of the second support bracket 1250 of the door 1200 and having a first vertical contact surface 1510a, 1510b corresponding to the trajectory in the arc of the rotational actuation of the gear portion 1250a of the second support bracket 1250 of the door 1200; and

(30) a rotating second vertical support 1520 installed at a lower end of the door 1200, comprising a fixed end 1522 fixedly installed to the door 1200, and a second rotational guide body being placed on the trajectory arc of the rotational actuation of the gear portion 1250a of the second support bracket 1250 of the door 1200 and having a second vertical contact surface 1520a, 1520b in line contact with a first vertical contact surface 1510a, 1510b corresponding to the trajectory in the arc of the rotational actuation of the gear portion 1250a of the second support bracket 1250 of the door 1200.

(31) Here, the rotation actuation guide device 1500 of the gear hinge unit is well shown in FIGS. 16, 18, 19, 21, 22, 24, and 26, the apparatus for guiding a stable rotating actuation of a gear hinge unit in a rotating door is characterized in that,

(32) in case that the first vertical contact surfaces 1510a and 1510b provided to the first vertical support 1510 are convex contact surfaces 1510a, the second vertical contact surfaces 1520a, 1520b provided to the second vertical support 1520 is formed by a concave contact surface 1520a; and

(33) in case that the first vertical contact surfaces 1510a and 1510b provided to the first vertical support 1510 are concave contact surfaces 1510b, the second vertical contact surfaces 1520a, 1520b provided to the second vertical support 1520 is formed by a convex contact surface 1520.

(34) In addition, according to a preferred embodiment of the present invention, as shown in FIG. 26, which shows an enlarged view of the first vertical support and the second vertical support for about 180 door rotation range shown in FIG. 25, the apparatus for guiding a stable rotating actuation of a gear hinge unit in a rotating door is characterized in that, through a rotation opening/closing process of the door 1200, a change distance Ro of a contact line in which a line contact is made on the first vertical contact surfaces 1510a and 1510b provided in the first vertical support 1510 is formed to be larger than a change distance Lo of a contact line in which a line contact is made on the second vertical contact surfaces 1520a and 1520b provided in the second vertical support 1520.

(35) Furthermore, the apparatus for guiding a stable rotating actuation of a gear hinge unit in a rotating door is characterized in that the first vertical contact surfaces 1510a and 1510b provided on the first vertical support 1510 are provided with both the concave contact surface 1510a and the convex contact surface 1510b, and the second vertical contact surfaces 1520a and 1520b provided on the second vertical support 1520 are provided with both the convex contact surface 1520b and the concave contact surface 1520a corresponding to the first vertical contact surfaces 1510a and 1510b, respectively.

(36) Herein, if the apparatus for guiding a stable rotating actuation of a gear hinge unit in a rotating door is characterized in that the concave contact surface 1510b of the first vertical contact surfaces 1510a, 1510b provided to the first vertical support 1510 is formed to contact the convex contact surface 1520b of the second vertical contact surfaces 1520a and 1520b provided to the second vertical support 1520 in a door closed state, it will provide a more desirable effect in improving the fixing force of the door closed state, in addition, if the apparatus for guiding a stable rotating actuation of a gear hinge unit in a rotating door is characterized in that, in an inflection section passing an inflection point at which a contact portion is changed from the concave contact surface 1510b to the convex contact surface 1510a in the first vertical contact surfaces 1510a, 1510b provided to the first vertical support 1510, the inflection section is formed such that contact stress of the line contact portion is reduced due to an increase in a number of contact line as the contact portion is changed, it will provide a more and more desirable effect in improving the fixing force of the door closed state.