KR20030004633A - The opening and closing movement for door - Google Patents

Abstract

PURPOSE: A door operator is provided to prevent accidents by a door by closing a door slowly, to manufacture easily, to reduce the frequency of breakdowns and to lower manufacturing costs. CONSTITUTION: The door operator comprises: a driving gear(10) fixed to a hinge shaft(h) of a door exposed to the upper side of a casing and provided with gears(11); rack gears(20,20') engaged with the gears(11) of the driving gear(10) selectively; working rods(23,23') connected to the rack gears(20,20'), fitted to bearing brackets(21,21') to make horizontal movement possible and provided with door return springs(22,22'); a primary power transmission gear installed to the lower part of the driving gear(10); and a door-working force controller(a) containing a cylindrical housing(100) having an eccentric circular space, a lower shaft fixed to the center of the circular space of the housing(100), an upper shaft exposed to the housing(100) and provided with a secondary power transmission gear(112) engaged with the primary power transmission gear, a steel ball(114) built in a space of a revolving body(110) and adhered to the inner wall of the housing(100), and a door-working force control spring(116) suppressing an elasticity control member(115) interposed in the space.

Description

The opening and closing movement for door}

The present invention relates to a door opening and closing device which is installed at an entrance or entrance of a building, such that the door can be opened in both directions by a rotational operation based on a hinge formed at one side of the door. And the utility model registration No. 194383 of the present applicant has been improved.

The door opening and closing device of the present invention greatly improves the structure of own patent application No. 2000-19300 and Utility Model Registration No. 194383, which have been filed, greatly reducing the number of parts, making the production easy and greatly reducing the production cost and smoothly operating. In order to achieve this, the door return means which is selectively engaged with the power transmission gear fixed to the hinge shaft of the door and the rotation direction of the power transmission gear and the door return action and the opening / closing force control means when the door is opened or closed. It is made of bay.

The door opening and closing devices of the conventional door is rotated from the hinge attached to one side of the door as a starting point, the door is opened in both directions except for the moment and the special case when the door is opened and closed for the purpose of maintaining the heating and cooling state according to the season. Since the door hinge must be kept closed at all times, a door automatic return system of various structures is installed in the door hinge of the door, and most of these structures include sliding and reverse rotation of the hinge shaft and cam during frequent opening and closing operations of the door. O-rings fitted between the cover mounted on the opening and the outer circumferential wall of the hinge shaft are unevenly worn due to the change of the center of the hinge shaft, which is the rotating shaft, in the process of repeating the vertical movement of the upper and lower plates. As the oil in the cylinder leaks, the adjustment of the door opening and closing speed is smooth. This will be achieved not support war problems occur.

Due to the problem of the switchgear, when the door is opened or closed, the speed control function of the opening and closing speed is lost and the door is closed rapidly, thus causing frequent collisions with the accessor, especially injuring the weak and weak. Problems will arise.

The problem of the conventional opening and closing device of the door, such as the oil cylinder, that is due to the degradation of the sealing effect and the hardening of the oil due to the wear and damage of the cylinder or hydraulic piston and O-ring.

In addition, the composition of my patent application No. 2000-19300 and Utility Model Registration No. 194383,

The door return means fixed to the hinge shaft of the door and rotated in the rotational direction of the door and selectively engaged with the motive gear for horizontal movement and the door opening and closing force control means for reducing the closing speed of the door and the door. It consists of idle gear detachable means for selectively connecting the opening and closing force control means according to the opening operation to selectively connect the rotational force transmission means.

The door opening and closing device made of such a configuration requires a large number of parts, and therefore, the cause of the increase in manufacturing cost and the increase in the overall volume of the opening and closing device and the cause of failure due to many parts cannot be excluded.

The present invention is a technical problem that the present invention is to achieve easy to manufacture and smooth operation in a simple configuration in order to effectively improve the problems of the conventional door opening and closing device.

The present invention for achieving the above technical problem is fixed to the hinge shaft of the door is connected to the rack gear and the rack gear that is engaged in the rotational direction of the door and the rotational direction of the drive gear and the door is connected to the rack by a spring By providing a new door opening and closing force control means made of a simple structure by using the configuration of the original patent application and the pre-registered design to revert to provide a door opening and closing device that can expect a breakthrough effect according to the simple configuration will be.

1 is an exemplary cutaway plan view showing a state in which the door is closed by the present invention.

Figure 2 is an exemplary front view of a state in which the door is closed by the present invention.

Figure 3 is a plan view showing a state in which the door is open by the present invention.

Figure 4 is a plan view showing another embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

(C) Casing (D) Door (h) Hinge Shaft

(10) Prime Gear (11) Gear

(20) (20 ') Racks (21) (21') Brackets (22) (22 ') Door return spring

(23) (23 ') actuation rod (30) primary power transmission gear

(100) Cylindrical housing (101) One side wall (102) The other side wall

(103) Circular space (110) Rotor (111) Lower axis

(111 ') Upper Shaft (112) Second Power Transmission Gear (113) Space

(114) Steel ball (115) Spring elasticity regulating member (116) Spring

(a) Door opening and closing force control means (100a) Cylindrical housing (103a) Circular space

A primary gear 10 which is integrally fixed to the hinge shaft h of the door D exposed to the upper surface of the casing C, and the gear 11 is formed on a part of the outer circumferential surface, and the gear 11 of the primary gear 10. Is connected to the rack gear 20, 20 'and the rack gear 20, 20' and selectively engaged with the support bracket 21, 21 'so as to move left and right and the door return spring ( 22) the first power transmission gear built on the hinge shaft (h) to be rotated in the same direction as the mobilization gear on the lower working rod 23 (23 ') and the driving gear (10) In the door opening and closing device made of 30), the cylindrical housing 100 and the cylindrical body are fixed to the bottom surface of the casing C, and the circular wall 103 is eccentric so that one side wall 101 is thick and the other side wall 102 is thin. A lower shaft 111 rotatably fixed to the center of the circular space portion 103 of the housing 100 and exposed to an upper portion of the cylindrical housing 100 and the first power transmission gear 30 and The rotating body 110 and the space part of the rotating body 110 are provided with the upper shaft 111 ′ on which the second power transmission gear 112 to be pressed is formed, and a space portion 113 communicating left and right therein. It is embedded in the 113 and on one side press the steel ball 114 in close contact with the inner wall of the cylindrical housing 100 and the other side is adjusted to the spring force is inserted into the space 113 to adjust the force of the spring The door opening and closing force control means (a) having a door opening and closing force adjustment spring 116 for suppressing the member 115 is made.

4 shows another embodiment of the present invention, in which the rotating body 110 is eccentrically arranged in the circular space 103a of the cylindrical housing 100a with a constant wall thickness.

The operational effect of the present invention made of the above-described configuration will be described.

1 is a state in which the door D is closed, and FIG. 3 is a view in which the degree is opened and rotated by 90 °, and when the door D is pushed by applying a force to the door D, the door D is started from the hinge axis h. When the rotation of the door (D) is started and the primary gear (10) fixed to the hinge shaft (h) is rotated, the gear (11) of the primary gear (10) is engaged with one rack gear (20) rack The gear 20 and the rod 23 are moved horizontally, at which time the door return shot spring 22 is retracted.

In addition, when the door D is rotated, the first power transmission gear 30 arranged at the bottom of the motive gear 10 is also rotated at the same time, and the second power transmission gear meshed with the first power transmission device 30 ( In the state in which the door D is closed as shown in FIG. 1, the rotating body 110 fixed to the coaxial shaft 112 and built in the circular space 103 of the cylindrical housing 100 is rotated as shown in FIG. 3. In the state where the steel ball 114 is in contact with the inner surface of the thick one side wall 101 of the cylindrical housing 100, the center of the upper and lower side 111 'and 111 of the rotating body 110 and the one side wall 101 Since the gap is closest to the state, the door opening and closing force adjustment spring 116 is most contracted by the steel ball 114.

In this state, when the rotating body 110 rotates due to the rotation of the door D, the steel housing 114 moving along the rotating body 110 gradually moves away from the center of the rotating body 110. As the spring 116 contracted by being moved along the inner wall of the) is gradually opened, the elastic force of the spring 116 is weakened, so that the door D is easily opened while being lightly and gently rotated.

When the door D is released from the door D while the door D is open in the state shown in FIG. 3, the retracted door return spring 22 is pushed and pushes the operation rod 23 and the operation rod 23. As the connected rack gear 20 is returned, the motor D is rotated so that the door D is closed as shown in FIG. 1.

When the door D is closed in this way, since the rotor 110 returns to the state of FIG. 1, the steel ball 114 fitted to the rotor 110 moves toward the thick one side wall 101 of the housing 100. Therefore, as the pressure received by the steel ball 114 becomes stronger due to the elastic force generated by the contraction of the spring 116, the closing speed of the door D becomes slow.

The opening and closing operation of the door of the present invention will be the same operation when the door (D) is pushed into the building or the door (D) is pushed out from the building.

Another embodiment of the present invention shown in Figure 4,

The wall of the cylindrical housing 100a has the same thickness, and the same structure and effect can be obtained as the structure in which the rotating body 110 arranged in the circular space portion 103a is eccentrically mounted.

The opening and closing force control means of the door of the present invention having the above-described configuration and operation effect is a state in which the door is closed by placing the rotating body using a spring with a constant elastic force at the center of the space portion of the cylindrical housing or eccentrically placing the space in the space portion. In the state in which the distance between the rotor and the inner wall of the housing is closest to the steel ball receiving the spring force, the support force of the door becomes high, and the central axis of the rotor and the inner wall of the housing gradually move away while the door is opened. As the elasticity of the spring gradually weakens, the door is opened lightly, and when the door is closed by the door return spring, the resilience of the spring becomes stronger so that the door closes gradually, thus preventing accidents caused by crushing or pinching the door. Will be prevented.

In addition, the present invention is to achieve the advantage that the door opening and closing force control structure is very simple, easy to manufacture, low failure rate and significantly lower production cost.

Claims (2)

A primary gear 10 which is integrally fixed to the hinge shaft h of the door D exposed to the upper surface of the casing C, and the gear 11 is formed on a part of the outer circumferential surface, and the gear 11 of the primary gear 10. Is connected to the rack gear 20, 20 'and the rack gear 20, 20' and selectively engaged with the support bracket 21, 21 'so as to move left and right and the door return spring ( 22) the first power transmission gear built on the hinge shaft (h) to be rotated in the same direction as the mobilization gear on the lower working rod 23 (23 ') and the driving gear (10) In the door opening and closing device made of 30), the cylindrical housing 100 and the cylindrical body are fixed to the bottom surface of the casing C, and the circular wall 103 is eccentric so that one side wall 101 is thick and the other side wall 102 is thin. The lower shaft 111 is rotatably fixed to the center of the circular space 103 of the housing 100 and the upper portion of the cylindrical housing 100 and exposed to the first power transmission gear 30. The rotating body 110 and the space part of the rotating body 110 are provided with the upper shaft 111 ′ on which the second power transmission gear 112 to be pressed is formed, and a space portion 113 communicating left and right therein. It is embedded in the 113 and on one side press the steel ball 114 in close contact with the inner wall of the cylindrical housing 100 and the other side is adjusted to the spring force is inserted into the space 113 to adjust the force of the spring A door opening and closing force control means (a) having a door opening and closing force adjustment spring (116) for suppressing the member (115). The door of claim 1, wherein the wall of the cylindrical housing 100a is formed to have a predetermined thickness, and the rotating body 110 mounted in the circular space 103a of the cylindrical housing 100a is eccentrically arranged. Device.