KR101874253B1

KR101874253B1 - Hinge for Opening and Closing a Door

Info

Publication number: KR101874253B1
Application number: KR1020170098218A
Authority: KR
Inventors: 장종복
Original assignee: 장종복
Priority date: 2017-08-02
Filing date: 2017-08-02
Publication date: 2018-07-03

Abstract

The present invention relates to a hinge for opening and closing a door (100), the hinge including: a supporter (140) combined with a main housing (120) so as to operate in cooperation therewith by passing through any one of an upper/lower assistant housing (130a, 130b); an adjustment screw (150) including an adjustment screw rod (154) combined with adjustment threads (133) of the upper assistant housing (130a), and a fixing screw rod (155) provided upward therefrom, wherein the adjustment screw rod (154) and the fixing screw rod (155) include right-handed threads and left-handed threads respectively whose directions are differently formed; a fixture (160) combined with the fixing screw rod (155) of the adjustment screw (150) by being screwed thereto so as to fix the adjustment screw (150); a torsion spring (170) connected to the supporter (140) and the adjustment screw (150) by being provided therebetween so as to change the strength of elasticity of the torsion spring by turning the adjustment screw (150); an operation bolt (185) controlling the elasticity of the torsion spring (170) by being combined with a lower side of the supporter (140) so as to operate in cooperation therewith; an elasticity guide (180) combined with the lower assistant housing (130b) so as to operate in cooperation therewith; and an elastic assembly pressing a lower end of the operation bolt (185) by inserting a press plate spring (191) into the inside of the elasticity guide (180). Accordingly, the elasticity of the torsion spring (170) and the elastic assembly (190) is efficiently fine-tuned such that the torsion spring and the elastic assembly operate within a stable range.

Description

{HINGE FOR OPENING AND CLOSING A DOOR}

More particularly, the present invention relates to a hinge for opening and closing a door, and more particularly, to a hinge for opening and closing a door, which can easily, conveniently, and precisely adjust the elasticity of a hinge, And a hinge for opening and closing the door.

Generally, the hinges of the doors are made of manually operated hinges and free hinges to automatically close the open door by spring or hydraulic or a combination thereof.

This conventional hinge is closed by the elasticity of the spring after opening the door, and at this time, the elasticity of the spring is constantly maintained by using the hydraulic pressure so that the door is closed gradually.

Further, in the conventional spring type hinge, when the door is opened, the built-in spring is wound, and when the door is closed, the coil spring is released to the original position and the door is closed.

In addition, after the door is opened, it is closed by the elasticity of the spring. At this time, the elasticity of the spring is kept constant by using the hydraulic pressure and the door is closed gradually.

However, in this conventional technique, most of the elasticity of the spring is controlled by the unit of the click interval of the clutch, so that it is impossible to precisely control the elasticity of the spring.

Particularly, since the diameter of the rotating shaft of the hinge is limited, it is almost impossible to design the click interval closely.

Further, the torsion spring used for the hinge uses a torsion spring. The torsion spring for hinges is not limited to adjusting the diameter of the torsion spring and limiting the diameter of the rotating shaft by winding or unscrewing the wheel with the torsion spring. There is a problem in that it is almost impossible to precisely adjust the elasticity by adjusting the elasticity per one click.

Therefore, although the elasticity of the torsion spring can be finely adjusted in the open No. 10-2013-0131036 (the name of the door opening / closing hinge) of the present applicant, since the opening and closing of the door can not be finely controlled, And Patent No. 10-1613825, which improves this problem.

However, in this conventional technology, when the door is opened, the torsion spring is wound. When the door is released, the door is closed due to the elastic action due to the restoration of the torsion spring in which the free door is wound. At this time, It is required that the torsion spring should be relatively strongly resilient for the door closing action above a predetermined level so that the door is suddenly closed due to the sudden closing of the door, And a separate hydraulic device is used in combination.

Particularly, for this reason, conventionally, since a hydraulic device for controlling the elasticity of the torsion spring is used by using hydraulic pressure or the like, the structure is complicated and the fear of failure is high and the cost of the product is increased so that the development of a new door opening / closing hinge Has been continuously required.

The main object of the present invention is to provide a hinged torsion spring capable of smoothly opening / closing a door by only a torsion spring so as to have elasticity within a certain range in a door opening / closing section of a hinging torsion spring, and finely adjusting the elasticity of a torsion spring, So that the hinge can be smoothly operated even if it is used for a long period of time.

In order to achieve the above object, the hinge for opening and closing the door of the present invention includes a support for passing through one of the upper and lower auxiliary housings and engaging with and coupling with the main housing; An adjusting screw for engaging with the upper auxiliary housing to adjust an elastic force of the torsion spring; A fixture which is coupled to the adjusting screw and fixes the adjusting screw and the screw to the setting position to keep the elastic force of the torsion spring constant; A torsion spring which is installed between the support and the adjusting screw to connect the torsion spring and adjust the strength of the elasticity by rotation of the adjusting screw; An elastic guide member fixed to the lower auxiliary housing to engage an operating bolt with a supporting member to cause the operating bolt to rotate in conjunction with rotation of the torsion spring and to move up and down; And an elastic assembly for pressing a lower end of the operating bolt by inserting a pressing leaf spring inside the elastic guide hole; The pressing plate spring of the elastic assembly is formed in an annular shape, the periphery thereof is formed as an inclined surface, the upper and lower ends are horizontally formed as a contact surface, and the pressing plate springs are mutually symmetrically connected to each other. .

Therefore, the hinge for opening and closing the door of the present invention is designed to prevent the sudden closing of the door because the elastic force of the pressing leaf spring increases the elastic force while suppressing the speed of the operating bolt, thereby guiding the door to close smoothly at a set proper speed, So that the door can be completely closed until the end, and the screw direction of the adjustment screw and the fixing screw can be made different from each other with the right screw and the left screw, thereby maintaining a firm setting state.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view illustrating a hinge for opening and closing a door according to the present invention; Fig.
2 is a cross-sectional view illustrating a state of engagement of a hinge for opening and closing a door according to the present invention.
3 is an exploded cross-sectional view illustrating an elastic assembly of a hinge for door opening and closing according to the present invention.
4 is a sectional view for explaining the operating state of the leaf spring for pressurizing the hinge for door opening and closing according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, the door opening / closing hinge 100 of the present invention includes a left and a right plate 110 which are respectively engaged with a door and a door frame; A main housing 120 formed at a center of one of the left and right plates 110; Upper and lower auxiliary housings 130a and 130b respectively formed on the upper and lower sides of the other of the left and right plates 110 and forming an adjusting screw 133 on the inner periphery of the upper portion; A support (140) penetrating through one of the upper and lower auxiliary housings (130a, 130b) to be engaged with the main housing (120) and interlocking with each other; A control screw thread 154 and a fixing screw rod 155 are coupled to the adjusting screw 133 of the upper auxiliary housing 130a and the fixing screw thread 155 is formed upward, A control screw 150 formed in a direction different from that of the right screw and the left screw; A fixture 160 screwed to the fixing screw 155 of the adjusting screw 150 to fix the adjusting screw 150; A torsion spring 170 installed between the support 140 and the adjustment screw 150 and connected to the adjustment screw 150 to change the strength of the elasticity by rotation of the adjustment screw 150; An elastic guide 180 having an operation bolt 185 coupled to a lower side of the support 140 to control the elasticity of the torsion spring 170 and coupled to the lower auxiliary housing 130b in an interlocking manner; And an elastic assembly 190 for pressing a lower end of the operation bolt 185 by inserting a leaf spring 191 for pressing into the elastic guide 180.

The left and right plates 110 are generally formed with left and right plates 110 for coupling to doors and door frames, respectively, and a plurality of coupling holes 111 are formed in the left and right plates 110.

The main housing 120 is formed in a cylindrical shape and is formed by drilling a pin hole 121 having a setting pin 122 formed at the center of one of the left and right plates 110.

The upper and lower auxiliary housings 130a and 130b are cylindrically formed at the center of the other of the left and right plates 110 and are formed on the upper and lower sides of the upper and lower auxiliary housings 130a and 130b. 132 are formed by perforating the pin holes 131, respectively.

The upper and lower auxiliary housings 130a and 130b and the main housing 120 are formed to have the same diameter so that the main housing 120 is positioned between the upper and lower auxiliary housings 130a and 130b, And an adjusting screw 133 is formed on the inner circumference of the housing 130a.

The support 140 is inserted into the lower auxiliary housing 130b and fixed to the main housing 120 so as to interlock with each other so that the support 140 supports the pin hole 121 of the main housing 120 on the outer circumference of the support 140 And the pin hole 141 is fixed by the setting pin 122, so that the pin hole 141 can be interlocked.

Here, the shaft hole 142 and the fixing hole 143 are formed on the upper surface of the support member 140, the shaft hole 142 is formed on the upper surface center, and the key groove 144 is formed upwardly in the center of the bottom surface.

The adjusting screw 150 may be formed with a control screw thread 154 screwed to an adjusting screw 133 formed on the inner circumference of the upper auxiliary housing 130a so as to be precisely adjusted, And a fixing screw thread 155 is formed on the upper side of the adjusting screw rod 154. [

In addition, the screw threads of the adjusting screw 154 and the fixing screw rod 155 of the adjusting screw 150 are different from each other by the right screw and the left screw, It is ideal to prevent interference with adjustment and fixing according to other screw directions and to maintain a stable setting state.

The adjusting screw rod 154 is formed to have the same screw direction as that of the torsion spring 170 and the fixing screw rod 154 is formed to have the same screw direction as the adjusting screw rod 154 and the fixing screw rod 155, The torsion spring 155 is formed in a direction opposite to the spiral direction of the torsion spring 170 so that the fixed state can be more firmly maintained by the elasticity of the torsion spring 170.

A protruding shaft 152 and a fixing hole 153 are formed on the bottom surface of the adjusting screw 150 and a key groove 157 is formed on the upper end of the fixing screw 155, Thereby facilitating adjustment.

On the other hand, the adjusting screw hole may selectively use various constructions for converting the rotary motion of the adjusting cam or the adjusting rotary shaft into the vertical motion.

The fixture 160 is formed with a fixing screw hole 161 for fixing by screwing to the fixing screw thread 155 through the upper auxiliary housing 130a and forming an upper center key groove 162 or a nut at the outer periphery .

The torsion spring 170 is installed between the adjusting screw 150 and the support 140 so as to connect the both ends of the torsion spring 170 to the fixing hole 150 of the support shaft 150 and the support 140 153 and 143, respectively.

The elastic guide 180 is installed on the lower side of the support 140 and is coupled to the lower auxiliary housing 130b so as to control the elasticity of the torsion spring 170 to operate at a desired speed, A pinhole 184 corresponding to the pin hole 131 of the lower auxiliary housing 130b is formed on the outer circumference of the lower auxiliary housing 180 and fixed with the setting pin 132 to be interlocked with each other.

The resilient guide member 180 is formed with an engaging protrusion 181 on its inner periphery and a fixing screw 182 and a pressing screw 183 are formed on the upper and lower sides of the engaging protrusion 181, The operation bolt 185 is screwed into the operation bolt 185 and the key 186 is formed at the upper end of the operation bolt 185 to be engaged with the key groove 144 of the support 140.

Therefore, it is preferable that the operation bolts 185 interlock with each other in accordance with the rotation or the reverse rotation of the support 140, so that the support bolts 185 can be rotated so that the operation bolts 192 can rotate and ascend and descend.

On the other hand, the operation bolt 185 may selectively use various constructions for converting rotational motion of the operation cam, the operation rotary member,

The fixing screw 182 and the actuating bolt 185 may be screwed in a reverse direction by screwing the actuating bolt 185 into the fixing screw 182. If necessary, It may be lowered when it rotates.

The elastic assembly 190 includes a sliding washer or a bearing 192 and a pressing plate spring 191 and an adjusting bolt 194 sequentially in the downward direction of the operating bolt 185, Thereby forming a key groove 195.

The adjustment bolt 194 is engaged with a pressing screw 183 formed on the lower side of the elastic guide 180 so that the pressing force of the pressing leaf spring 191 can be adjusted.

Further, a sliding washer or a bearing 192 is inserted into the upper and lower sides of the leaf spring 191 for pressurization so that the operating bolt 190 in a pressurized state can be smoothly rotated.

Further, the pressing leaf spring 191 is formed in an annular shape, the periphery thereof is formed as an inclined surface 191a, the contact surface 191b is formed horizontally at upper and lower ends thereof, and the leaf spring 191 for pressing is installed symmetrically Therefore, not only can the pressing force be efficiently obtained in a narrow space, but also it can be used semi-permanently.

In addition, the coil spring 193 may be coupled to the upper or lower side of the leaf spring 191 for pressurization so that elasticity can act in combination to smoothly open and close the door. In this case, It is preferable that a sliding washer or a bearing 192 is interposed between the upper and lower sides of the coil spring 193 so that the coil spring 193 can rotate smoothly.

Here, the coil spring 193 is preferably formed to have a rectangular cross-section so that the coil spring 193 can smoothly and accurately operate vertically without interference in a narrow space of the elastic guide member 180.

The operation of the present invention will be described as follows.

When the fastener 160 is loosened in a state where the hinge 100 for opening and closing the door is opened, the fastener 160 is out of tight contact with the upper auxiliary housing 130a and the fastener 160 and the upper auxiliary housing 130a, .

The torsion spring 170 is rotated or rotated to adjust the elasticity of the torsion spring 170. The elasticity of the torsion spring 170 is adjusted so that the elasticity of the torsion spring 170 is adjusted. The elasticity of the torsion spring 170 can be easily adjusted and fixed.

The lower end of the torsion spring 170 is fixed to the support 140 and the upper end of the torsion spring 170 is coupled to the adjustment screw 150 so that the torsion spring 170 is wound by the rotation or reverse rotation of the adjustment screw 150 And to perform elastic control.

Accordingly, the support 140 is coupled to the main housing 120 to be interlocked, and the adjustment screw 150 is coupled to the upper auxiliary housing 130a to be interlocked, so that the elasticity of the door opening and closing hinge 100 is controlled.

At the same time, when the support 140 coupled to the main housing 120 rotates in conjunction with the rotation, the actuating bolt 185 that interposes the keyway 144 rotates in conjunction with rotation, The actuating bolt 185 screwed to the spring 182 descends simultaneously with the rotation, so that the leaf spring 191 for pressurization is gradually pressed and compressed.

At this time, since the operating bolt 185 reversely rotates and rises as well as being smoothly closed by the elasticity in the appropriate range, the pressing force of the pressing plate Thereby assisting the restoring force of the torsion spring 170 while releasing the spring 191 and guiding the door to be accurately and completely closed.

Further, since the door is closed while the screw bolted operation bolt 185 rotates and then rotates again, the leaf spring 191 pressed by the highest pressure applies the highest pressing force to the operating bolt 185, Thereby preventing the rotation of the operating bolt 185 and preventing sudden loosening of the torsion spring 170.

In other words, since the pressure of the pressing leaf spring 191 suppresses the speed (rotation) of the operating bolt 185, the elastic force of the torsion spring 170 is added to the elastic force of the pressing leaf spring 191, It is possible to suppress the sudden closing and smoothly close the door at a proper speed set, and to fully perform closing of the door until the end due to the increase of the elastic force.

Accordingly, it is possible to prevent sudden closing action when the open door is closed, and to close the door to the last time, thereby enhancing the reliability of the product and, at the same time, So that the elasticity of the spring 191 can be easily and conveniently adjusted by the adjustment bolt 194.

In addition, since the pressing leaf spring 191 and the coil spring 193 are used together, the door can be opened and closed more smoothly.

The door opening and closing hinge 100 according to the present invention adjusts the elasticity of the torsion spring 170 by screwing the adjusting screw 154 to the adjusting screw hole 152 of the guide hole 150, The elasticity desired by the user can be finely adjusted.

Further, since the direction of the screws of the adjusting screw 154 and the fixing screw rod 155 of the adjusting screw 150 is different from that of the right screw or the left screw, the fastener 160 is tightened after the fine adjustment, 130a so that the adjusting screw 154 and the fixing screw rod 155 of the adjusting screw 150 are inversely reciprocated with respect to the external force to prevent loosening so that the fine adjustment state can be firmly and stably maintained .

In addition, a locking jaw 156 is formed between the adjusting screw rod 154 and the fixing screw rod 155 to prevent interference with the adjusting operation and the fixing operation along the other screw directions, and to maintain a stable setting state .

The hinge 100 for door opening and closing according to the present invention efficiently and finely adjusts the elasticity of the torsion spring 170 and the elastic assembly 190 to operate within a stable range. And to induce the exponentially increasing elasticity to change only within a certain range so that the door can be smoothly opened and closed smoothly and stably.

While the invention has been shown and described with respect to the specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who has it will know it easily.

100: Hinge 110: Left and right plate
111: coupling hole 120: main housing
121: pin hole 122: setting pin
130a: upper auxiliary housing 130b: lower auxiliary housing
131: pin hole 132: setting pin
133: adjusting screw 140:
141: pinhole 142: shaft
143: fixing hole 144: keyway
150: Adjustable shaft 150: Shaft
153: Fixing hole 154: Adjusting screw
155: fastening screw 156: fastening jaw
157: keyway 160: fastener
161: Fixing screw 162: Keyway
170: torsion spring 180: elastic guide hole
181: latching jaw 182: fixing screw
183: Pressing screw 184: Pinhole
185: operating bolt 186: key
190: Elastic assembly 191: Plate spring for pressing
191a: slope surface 191b: close surface
192: sliding washer or bearing 193: coil spring
194: Adjustment bolt 195: Keyway

Claims

A left and right plate 110 for respectively coupling the door and the door frame; A main housing 120 formed at a center of one of the left and right plates 110; Upper and lower auxiliary housings 130a and 130b respectively formed on the upper and lower sides of the other of the left and right plates 110 and forming an adjusting screw 133 on the inner periphery of the upper portion; A support (140) penetrating through one of the upper and lower auxiliary housings (130a, 130b) to be engaged with the main housing (120) and interlocking with each other; A control screw 150 coupled to the upper auxiliary housing 130a to adjust an elastic force of the torsion spring 170; A fixture 160 which is coupled to the adjustment screw 150 and fixes the adjustment screw 150 to the setting position to maintain the elastic force of the torsion spring 170 constant; A torsion spring 170 installed between the support 140 and the adjustment screw 150 and connected to the adjustment screw 150 to change the strength of the elasticity by rotation of the adjustment screw 150; The operating bolt 185 is fixed to the lower auxiliary housing 130b and the operating bolt 185 is coupled to the supporting unit 140 so that the operating bolt 185 rotates in conjunction with the rotation of the torsion spring 170, A guide member 180; And an elastic assembly 190 for pressing a lower end of the operation bolt 185 by inserting a leaf spring 191 for pressing into the elastic guide 180,
The adjusting screw 150 is provided with a control screw 154 and a fixing screw 155. The adjusting screw 154 and the fixing screw 155 are fixed to the upper auxiliary housing 130a, And the adjusting screw thread 154 is formed to have the same shape as the helical direction of the torsion spring 170 and the fixing screw thread 155 is formed in the same direction as that of the torsion spring 170, And the elastic guide means 180 is installed on the lower side of the support member 140 and is coupled to the lower auxiliary housing 130b so as to form a locking protrusion 181 on the inner periphery thereof, And the operating bolts 185 are threadedly engaged with the fixing screws 182 so that the operating bolts 185 are provided at the upper ends of the operating bolts 185 with the keys 186 Is formed in the key groove (144) of the support (140).

The method according to claim 1,
The urging plate spring 191 of the elastic assembly 190 is formed in an annular shape and is formed as an inclined surface 191a and has a contact surface 191b horizontally formed at the upper and lower ends thereof. Wherein the hinges are symmetrically connected to each other.

3. The method of claim 2,
Wherein the elastic assembly (190) is formed by combining a coil spring (193) on the upper side or the lower side of the pressing plate spring (191) so that elasticity can act in combination.

The method of claim 3,
The elastic assembly 190 is provided with a leaf spring 191 for pressing or an adjusting bolt 194 for adjusting an elastic force under the coil spring 193. The end surface of the coil spring 193 is formed in a rectangular shape, Wherein a sliding washer or a bearing (192) is fitted on the upper and lower sides of the operating bolt (185) and the coil spring (193).

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