CN111083929A - Connector for folding door and folding door - Google Patents

Connector for folding door and folding door Download PDF

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Publication number
CN111083929A
CN111083929A CN201880002786.7A CN201880002786A CN111083929A CN 111083929 A CN111083929 A CN 111083929A CN 201880002786 A CN201880002786 A CN 201880002786A CN 111083929 A CN111083929 A CN 111083929A
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CN
China
Prior art keywords
gear
door
bracket
disposed
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201880002786.7A
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Chinese (zh)
Inventor
李筍雨
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Dongguo Engineering Co Ltd
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Dongguo Engineering Co Ltd
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Filing date
Publication date
Application filed by Dongguo Engineering Co Ltd filed Critical Dongguo Engineering Co Ltd
Publication of CN111083929A publication Critical patent/CN111083929A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E05D3/12—Hinges with pins with two or more pins with two parallel pins and one arm
    • E05D3/122—Gear hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/26—Suspension arrangements for wings for folding wings
    • E05D15/264—Suspension arrangements for wings for folding wings for bi-fold wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D2700/00—Hinges or other suspension devices especially for doors or windows
    • E05D2700/04—Hinges with one pivot axis and more than one bearing surface
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extensible Doors And Revolving Doors (AREA)
  • Hinges (AREA)

Abstract

The invention provides a connector for a folding door, which can accurately and smoothly guide the folding of a first door and a second door, and the folding door comprising the connector for the folding door.

Description

Connector for folding door and folding door
Technical Field
The invention relates to a connector for a folding door and a folding door.
Background
In the case of a typical folding door, a connector for guiding the folding between the first door and the second door cannot correctly guide the folding of the first door and the second door, and thus a user applies excessive force to the folding door, and thus there is a problem that the connector is easily worn to shorten the service life or the connector is damaged to fail to open or close the door.
Disclosure of Invention
(problem to be solved)
The invention provides a connector for a folding door, which can accurately and smoothly guide the folding of a first door and a second door, and the folding door comprising the connector for the folding door.
The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not described can be clearly understood by a person skilled in the art from the following description.
(means for solving the problems)
In order to solve the above problems, a connector for a folding door according to an aspect of the present invention is a connector for connecting a first door and a second door that rotate with respect to one rotation shaft, including: a first bracket supporting the first door; a second bracket supporting the second door; a first gear disposed on one side of the first holder; a second gear disposed at one side of the second bracket and engaged with the first gear; a third gear disposed on the other side of the first bracket; a fourth gear disposed at the other side of the second bracket and engaged with the third gear; a first shaft coupled to the first gear and the third gear; and a second shaft coupled with the second gear and the fourth gear.
The rotation of the first gear and the third gear can be linked through the first shaft, and the rotation of the second gear and the fourth gear can be linked through the second gear.
The first gear is arranged on the upper side of the first bracket, and the second gear is arranged on the upper side of the second bracket; the third gear is arranged on the lower side of the first bracket; the fourth gear may be disposed at a lower side of the second bracket, and the first shaft and the second shaft may have a shaft in a vertical direction.
The connector for a folding door may further include: an upper cover member that covers the first gear and the second gear; and a lower cover member that covers the third gear and the fourth gear.
The folding door connector may further include: an upper first bearing disposed on a lower surface of the upper cover member and supporting the first shaft in an axial direction; an upper first bearing disposed on a lower surface of the upper cover member and supporting the second shaft in an axial direction; a lower first bearing disposed on an upper surface of the lower cover member and supporting the first shaft in an axial direction; and a lower second bearing disposed on an upper surface of the lower cover member and supporting the second shaft in an axial direction.
The upper first bearing and the upper second bearing and the lower first bearing and the lower second bearing may be Thrust bearings (Thrust bearings).
The first bracket may include: a first housing portion that houses the first gear and the third gear; a first support part combined with the first door to support the first door. The second bracket may include: a second housing portion that houses the second gear and the fourth gear; a second support part combined with the second door to support the second door.
The first gear comprises a first gear part and a first combining part, the second gear comprises a second gear part and a second combining part, the third gear comprises a third gear part and a third combining part, and the fourth gear comprises a fourth gear part and a fourth combining part; the first gear part is meshed with the second gear part, and the third gear part is meshed with the fourth gear part; the first coupling portion and the third coupling portion may be accommodated in the first accommodating portion; the second coupling portion and the fourth coupling portion may be accommodated in the second accommodating portion.
The connector for a folding door further includes: an upper first packing member disposed between the first gear portion and the second gear portion and the first receiving portion and the second receiving portion; and a lower second packing member disposed between the third gear portion and the fourth gear portion and the first receiving portion and the second receiving portion.
A folding door according to an aspect of the present invention for solving the above problems includes: a first door frame; a first door rotatably disposed on the first door frame with reference to a first rotation axis; a second door frame spaced apart from the first door frame; a second door rotatably disposed on the first door with reference to a second rotation axis and spaced apart from the second door frame; a connector which is connected between the first door and the second door and guides the first door and the second door to respectively rotate by taking the second rotating shaft as a reference; wherein the connector comprises: a first bracket supporting the first door; a second bracket supporting the second door; a first gear disposed on one side of the first holder; a second gear disposed at one side of the second bracket and engaged with the first gear; a third gear disposed on the other side of the first bracket; a fourth gear disposed at the other side of the second bracket and engaged with the third gear; a first shaft coupled to the first gear and the third gear; and a second shaft coupled with the second gear and the fourth gear; the rotation of the first gear and the third gear can be linked through a first shaft, and the rotation of the second gear and the fourth gear can be linked through a second shaft.
(Effect of the invention)
In the present invention, the first gear and the third gear disposed on the first bracket (supporting the first door) are linked by the first bearing, the second gear and the fourth gear disposed on the second bracket (supporting the first door) are linked by the second shaft, the first gear and the second gear are meshed and linked with each other, and the third gear and the fourth gear are meshed and linked with each other.
Accordingly, in the present invention, the first door and the second door are guided by four gears which are interlocked with each other. As a result, the present invention provides a connector for a folding door capable of folding a first door and a second door accurately and smoothly. Further, the present invention provides a folding door including the connector for a folding door.
The effects of the present invention are not limited to the above-mentioned effects, and other effects not described can be clearly understood by those skilled in the art from the following description.
Drawings
Fig. 1 is a perspective view showing a folding door of the present invention in a closed state.
Fig. 2 and 3 are perspective views showing the folding door of the present invention in an open state.
Fig. 4 is a perspective view showing a connector for a folding door of the present invention.
Fig. 5 is an exploded perspective view showing a connector for a folding door of the present invention.
Fig. 6 is a cross-sectional view taken along line a-a' of fig. 4.
Detailed Description
The advantages, features and attainment methods of the present invention will become apparent with reference to the detailed description of the embodiments to be described later together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in different shapes, and the embodiments are only provided to make the disclosure of the present invention more complete and to inform a person having ordinary skill in the art to which the present invention pertains of the scope of the present invention, which is defined only by the scope of the claims.
The terms used in the present specification are used for the purpose of illustrating embodiments, and are not intended to limit the present invention. In this specification, a singular-form sentence also includes a plural-form sentence as long as it is not specifically described. The terms "comprises" and/or "comprising" used in the specification do not preclude the presence or addition of one or more other constituent requirements in addition to the constituent elements referred to. Throughout the specification, the same reference numerals refer to the same constituent elements, and "and/or" is a combination including one or more of the constituent elements referred to. Although the terms "first", "second", and the like are used for describing various components, it is needless to say that these components are not limited by the terms. These terms are used only to distinguish one component from another component. Therefore, the first component described below may be the second component within the technical idea of the present invention.
Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings commonly understood by one of ordinary skill in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries should not be interpreted ideally or excessively unless explicitly defined.
As shown in the drawings, spatially relative terms such as "lower", "upper", and the like may be used for ease of explanation of the relationship between one component and another component. Spatially relative terms should be understood as adding terms that include different directions of the constituent elements when the directions shown in the drawings are used or operated. For example, in the case of inverting a component shown in the drawings, a component expressed as "lower (below)" or "lower (below)" of another component may be placed "upper (above)" of another component. Thus, the exemplary term "below" includes both below and above directions. The constituent elements may be oriented in different directions, and spatially relative terms may be interpreted according to the orientation.
Hereinafter, the folding door 1000 of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view showing a folding door of the present invention in a closed state. Fig. 2 and 3 are perspective views showing the folding door of the present invention in an open state. Fig. 4 is a perspective view showing a connector for a folding door of the present invention. Fig. 5 is an exploded perspective view showing a connector for a folding door of the present invention. Fig. 6 is a cross-sectional view taken along line a-a' of fig. 4.
The folding door 1000 of the present invention may include a first door 100, a second door 200, a door handle 300, a first door frame 400, a second door frame 500, and a connector 600. The folding door 1000 of the present invention may have a closed state and an open state. The first door 100 and the second door 200 may be unfolded in a state where the folding door 1000 of the present invention is closed, and the first door 100 and the second door 200 may be folded in a state where the folding door 1000 of the present invention is opened. On one hand, the first and second doors 100 and 200 (refer to fig. 2) may be folded by pulling up the second door 200 or the first and second doors 100 and 200 (refer to fig. 3) may be folded by pushing the second door 200 according to a user's selection.
The first door 100 is rotatably coupled to the first door frame 400. In this case, in a state where the first door frame 400 is fixed, the first door 100 rotates with reference to the first rotation shaft 1 formed substantially in the vertical direction.
The width of the second gate 200 may be greater than the width of the first gate 100. The second door 200 may be disposed spaced apart from the second doorframe 400. The second door 200 may be a door foldably combined with the first door 100. In this case, the first door 100 and the second door 200 are rotatable with respect to the second rotation shaft 2 formed substantially in the vertical direction. As a result, the angle between the first door 100 and the second door 200 may be changed.
The first and second rotation shafts 1 and 2 are perpendicular to the width of the first door 100 and can be spaced apart from each other in the width direction of the first door 100. In addition, the first and second rotating shafts 1 and 2 may be substantially located at one end in the width direction of the first door 100 and the other end in the width direction of the first door 200, respectively.
On the other hand, the present handle 300 may be disposed at the second door 200, and a user may apply an external force (e.g., a rotational moment) to the second door 200 in a state of holding the door handle 300 in order to open or close the folding door 1000 of the present invention.
As described above, in the folding door 1000 according to the present invention, the first door 100 rotates with reference to the first rotation shaft 1, and the first door 100 and the second door 200 rotate with reference to the second rotation shaft 2, respectively, and thus the first door 100 and the second door 200 can be folded. In this case, the second door 200 is spaced apart from the second doorframe 500, and as a result, an open space may be formed between the second door 200 and the second doorframe 500. On the other hand, in a modification (not shown) of the present invention, the second door frame is omitted, and a third door is added, the second door and the third door being rotatable with respect to the third rotation axis.
The connector 600 may be a member connecting the first door 100 and the second door 200. The connector 600 may guide the first door 100 and the second door 200 to rotate with reference to the second rotation shaft 2, respectively. Accordingly, the connector 600 may also be referred to as a "hinge".
The connector 600 may include: a first bracket 610, a second bracket 620, a first gear 630, a second gear 640, a third gear 650, a fourth gear 660, a first shaft 670, a second shaft 680, an upper cover member 700, and a lower cover member 800.
The first bracket 610 and the second bracket 620 may be disposed adjacent to each other, and the first bracket 610 may support the first door 100 in combination with the first door 100, and the second bracket 620 may support the second door 200 in combination with the second door 200. As a result, the first bracket 610 rotates with the first door 100 about the second rotation axis 2, and the second bracket 620 rotates with the second door 200 about the second rotation axis 2.
The first bracket 610 may include a first receiving portion 611 and a first supporting portion 612, the first receiving portion 611 of the first bracket 610 may receive the first gear 630 and the third gear 650, the upper cover 710 may be disposed on the upper side of the first receiving portion 611 of the first bracket 610, and the lower cover 750 may be disposed on the lower side of the first receiving portion 611 of the first bracket 610. The first support part 612 of the first bracket 610 may be combined with the first door 100, and as a result, the first bracket 610 may support the first door 100.
The second rack 620 may include a second receiving portion 621 and a second supporting portion 622, the second receiving portion 621 of the second rack 620 may receive a second gear 640 and a fourth gear 660, the upper cover 710 may be disposed on the upper side of the second receiving portion 621 of the second rack 620, and the lower cover 750 may be disposed on the lower side of the second receiving portion 621 of the second rack 620. The second support 622 of the second supporter 620 may be combined with the first door 100, and as a result, the second supporter 620 may support the first door 100.
The first gear 630, the second gear 640, the third gear 650, and the fourth gear 660 may be flat gears. The first gear 630 and the third gear 650 may be disposed on the first bracket 610, and the second gear 640 and the fourth gear 660 may be disposed on the second bracket 620. The first gear 630 and the third gear 650 may be coupled to the first shaft 670, and the rotation of the first gear 630 and the third gear 650 may be linked by the first shaft 670. The rotation of the second gear 640 and the fourth gear 660 can be linked by the second shaft 680. In addition, the first gear 630 and the second gear 640 may mesh at a gear ratio of 1:1, and the third gear 650 and the fourth gear 660 may mesh at a gear ratio of 1: 1.
As a result, when the first door 100 and the second door 200 are rotated based on the second rotation shaft 2, the first gear 630 is engaged with the second gear 640, the third gear 650 is engaged with the fourth gear 660, the first gear 630 is interlocked with the third gear 650 and the second gear 640 is interlocked with the fourth gear 660, and the rotation of the first door 100 and the second door 200 can be accurately guided (4-gear interlocking). In addition, the first door 100 and the second door 200 are rotatable with respect to each other by the same rotation angle (gear ratio).
The first gear 630 may include a first gear part 531 and a first coupling part 632, the first gear part 631 of the first gear 630 may be a part in which gear teeth are formed, and the first coupling part 632 of the first gear 630 may be a part received by the first receiving part 611 of the first bracket 610.
The second gear 640 may include a second gear part 641 and a second combining part 642, the second gear part 641 of the second gear 640 may be a portion where gear teeth are formed, and the second combining part 642 of the second gear 640 may be a portion received by the second receiving part 621 of the second bracket 620.
Third gear 650 may include a third gear portion 651 and a third coupling portion 652, third gear portion 651 of third gear 650 may be a portion formed with gear teeth, and third coupling portion 652 of third gear 650 may be a portion received by first receiving portion 611 of first bracket 610.
The fourth gear 660 may include a fourth gear part 661 and a fourth coupling part 662, the fourth gear part 661 of the fourth gear 660 may be a portion in which gear teeth are formed, and the fourth coupling part 662 of the fourth gear 660 may be a portion received by the second receiving part 621 of the second rack 620.
A hollow space in a vertical direction may be formed inside the first receiving portion 611 of the first bracket 610 in order to receive the first coupling portion 632 of the first gear 630 and the third coupling portion 652 of the third gear 650. In this case, the first coupling portion 632 of the first gear 630 may be positioned at an upper portion of the inner space of the first receiving portion 611 of the first bracket 610, and the third coupling portion 652 of the third gear 650 may be positioned at a lower portion of the inner space of the first bracket 610.
Similarly, a hollow space may be formed in the second receiving portion 621 of the first holder 620 in a vertical direction in order to receive the second coupling portion 642 of the second gear 640 and the fourth coupling portion 662 of the fourth gear 660. In this case, the second coupling portion 642 of the second gear 640 may be positioned at an upper portion of the inner space of the second receiving portion 621 of the second holder 620, and the fourth coupling portion 662 of the fourth gear 660 may be positioned at a lower portion of the inner space of the second holder 620.
The first shaft 670 extends in a vertical direction (up-down direction) (shaft having a vertical direction), wherein an upper side portion may be coupled with the first gear 630 and a lower side portion may be coupled with the third gear 650. In addition, an upper end of the first shaft 670 may be supported by the upper first bearing 720, and a lower end of the first shaft 670 may be supported by the lower first bearing 820.
The second shaft 680 is an axis extending in a vertical direction (up-down direction) (having a vertical direction), wherein an upper portion may be coupled with the second gear 640 and a lower portion may be coupled with the fourth gear 660. In addition, an upper end of the second shaft 680 may be supported by an upper second bearing 730, and a lower end of the second shaft 680 may be supported by a lower second bearing 830.
The upper cover member 700 may be disposed on the upper sides of the first and second holders 610 and 620. The upper cover member 700 may cover the first gear 630 and the second gear 640, like a housing of the transmission case. Further, a bearing is disposed in the upper cover member 700, and rotatably supports the upper ends of the first shaft 670 and the second shaft 680.
The upper cover member 700 may include: an upper cap 710, an upper first bearing 720, an upper second bearing 730, an upper first packing element 740, an upper 2-1 packing element 750, and an upper 2-2 packing element 760.
The upper cover 710 may cover the first gear 630 and the second gear 640. An upper first bearing 720 and an upper second bearing 730 may be fixedly disposed on the lower surface of the upper cover 710.
The upper side first bearing 720 may be a thrust bearing (thrust bearing) that applies a load in the axial direction of the first shaft 670 (supports the first shaft in the axial direction). The outer ring of the upper first bearing 720 may be fixed under the upper cover 710, and the inner ring of the upper first bearing 720 may be combined with the upper end of the first shaft 670.
The upper side second bearing 730 may be a thrust bearing (thrust bearing) that applies a load in the axial direction of the second shaft 680 (supports the second shaft in the axial direction). The outer ring of the upper side second bearing 730 may be fixed under the upper side cover 710, and the inner ring of the upper side second bearing 730 may be combined with the upper end of the second shaft 680.
The upper first packing member 740 may be disposed between the first gear 630 and the first bracket 610 and between the second gear 640 and the second bracket 620. More specifically, the upper first packing member 740 may be disposed between the first coupling portion 632 of the first gear 630 and the second coupling portion 642 of the second gear 640 and the first receiving portion 611 of the first bracket 610 and the second receiving portion 621 of the second bracket 620. In addition, the first packing member 740 may be formed adjacent to the second opening on the upper side. In the connector 600 of the present invention, when assembled, the first coupling portion 632 of the first gear 630 may be positioned above the internal space of the first receiving portion 611 of the first holder 610 by penetrating the first opening of the first packing member 740 on the upper side, and the second coupling portion 642 of the second gear 640 may be positioned above the internal space of the second receiving portion 621 of the second holder 620 by penetrating the second opening of the first packing member 740. Accordingly, the upper first packing member 740 prevents the first and second carriers 610 and 620 from being worn due to the rotation of the first and second gears 630 and 640.
The upper 2 nd-1 th packing member 750 may be disposed between the first gear 630 and the first shaft 670. The upper 2 nd-1 th packing member 750 closely contacts the first gear 630 and the first shaft 670 to perform a function of reinforcing the coupling force.
The upper 2 nd-2 nd packing member 760 may be disposed between the second gear 640 and the second shaft 680. The upper 2 nd-2 nd packing member 760 performs a function of reinforcing the coupling force against the second gear 640 and the second shaft 680.
The upper cover member 700 may be disposed under the first and second holders 610 and 620. The lower cover member 800, such as a transmission case, may cover the third gear 650 and the fourth gear 660. Further, bearings are disposed at the lower cover member 800 to rotatably support the lower ends of the first and second shafts 670 and 680.
The lower cover member 800 may include: a lower cap 810, a lower first bearing 820, a lower second bearing 830, a lower first packing member 840, a lower 2-1 packing member 850, and a lower 2-2 packing member 860.
The lower cover 810 may cover the third gear 650 and the fourth gear 660. Further, a lower first bearing 820 and a lower second bearing 830 may be fixedly disposed on the upper surface of the lower cover 810.
The lower first bearing 820 may be a thrust bearing (thrust bearing) that applies a load in the axial direction of the first shaft 670 (supports the first shaft in the axial direction). The outer ring of the lower first bearing 820 may be fixed on the upper side of the lower cover 810, and the inner ring of the lower first bearing 820 may be coupled with the lower end of the first shaft 670.
The lower second bearing 830 may be a thrust bearing (thrust bearing) that applies a load in the axial direction of the second shaft 680 (supports the second shaft in the axial direction). The outer ring of the lower second bearing 830 may be fixed on the lower cover 710, and the inner ring of the lower second bearing 830 may be combined with the lower end of the second shaft 680.
The lower first packing member 840 may be disposed between the third gear 650 and the first bracket 610 and between the fourth gear 660 and the second bracket 620. More specifically, the lower first packing member 840 may be disposed between the third coupling portion 652 and 662 of the third and fourth gears 650 and 660 and the first receiving portion 611 and 621 of the first and second brackets 610 and 620. In addition, the first packing member 840 may be formed adjacent to the third opening and the fourth opening at the lower side. In the connector 600 of the present invention, when assembled, the third coupling portion 652 of the third gear 650 penetrates the third opening of the lower first packing member 840 and can be positioned below the inner space of the first receiving portion 611 of the first holder 610, and the fourth coupling portion 662 of the fourth gear 660 penetrates the fourth opening of the lower first packing member 740 and can be positioned below the inner space of the second receiving portion 621 of the second holder 620. Accordingly, the lower first packing member 840 prevents the first and second carriers 610 and 620 from being worn due to the rotation of the third and fourth gears 650 and 660.
The lower 2-1 filler member 850 may be disposed between the third gear 650 and the first shaft 670. The lower 2 nd-1 th packing member 850 may perform a function of reinforcing the coupling force with the first shaft 670 closely to the third gear 650.
The lower 2 nd-2 nd packing element 860 may be disposed between the fourth gear 660 and the second shaft 680. The lower 2 nd-2 nd packing member 860 closely contacts the fourth gear 660 and the second shaft 680 to perform a function of reinforcing a coupling force.
Although the embodiments of the present invention have been described with reference to the drawings, it will be understood by those skilled in the art that the embodiments may be embodied in other specific forms without changing the technical spirit or essential features thereof. The embodiments described above are therefore to be understood as being in all aspects illustrative and not restrictive.

Claims (10)

1. A connector for a folding door, which is used for connecting a first door and a second door that respectively rotate by taking one rotating shaft as a reference, is characterized by comprising:
a first bracket supporting the first door;
a second bracket supporting the second door;
a first gear disposed on one side of the first holder;
a second gear disposed at one side of the second bracket and engaged with the first gear;
a third gear disposed on the other side of the first bracket;
a fourth gear disposed at the other side of the second bracket and engaged with the third gear;
a first shaft coupled to the first gear and the third gear; and
a second shaft coupled with the second gear and the fourth gear.
2. The connector for a folding door according to claim 1,
the first gear is linked with the third gear through the first shaft, and the second gear is linked with the fourth gear through the second gear.
3. The connector for a folding door according to claim 1,
the first gear is arranged on the upper side of the first bracket, and the second gear is arranged on the upper side of the second bracket; the third gear is arranged on the lower side of the first bracket; the fourth gear is disposed below the second bracket, and the first shaft and the second shaft have a shaft in a vertical direction.
4. The connector for a folding door according to claim 3,
the connector for a folding door further includes:
an upper cover member that covers the first gear and the second gear; and
and a lower cover member that covers the third gear and the fourth gear.
5. The connector for a folding door according to claim 4,
the folding door connector further comprises:
an upper first bearing disposed on a lower surface of the upper cover member and supporting the first shaft in an axial direction;
an upper first bearing disposed on a lower surface of the upper cover member and supporting the second shaft in an axial direction;
a lower first bearing disposed on an upper surface of the lower cover member and supporting the first shaft in an axial direction; and
and a lower second bearing disposed on an upper surface of the lower cover member and supporting the second shaft in an axial direction.
6. A connector for a folding door according to claim 5,
the upper first bearing and the upper second bearing and the lower first bearing and the lower second bearing are thrust bearings.
7. The connector for a folding door according to claim 1,
the first bracket includes:
a first housing portion that houses the first gear and the third gear; and
a first supporting part combined with the first door to support the first door, and
the second bracket includes:
a second housing portion that houses the second gear and the fourth gear; and
a second support part combined with the second door to support the second door.
8. The connector for a folding door according to claim 7,
the first gear comprises a first gear part and a first combining part, the second gear comprises a second gear part and a second combining part, the third gear comprises a third gear part and a third combining part, and the fourth gear comprises a fourth gear part and a fourth combining part;
the first gear part is meshed with the second gear part, and the third gear part is meshed with the fourth gear part;
the first coupling portion and the third coupling portion are housed in the first housing portion; the second coupling portion and the fourth coupling portion are accommodated in the second accommodating portion.
9. The connector for a folding door according to claim 8,
the connector for a folding door further includes:
an upper first packing member disposed between the first gear portion and the second gear portion and the first receiving portion and the second receiving portion; and
and a lower second packing member disposed between the third gear portion and the fourth gear portion and the first receiving portion and the second receiving portion.
10. A folding door, comprising:
a first door frame;
a first door rotatably disposed on the first door frame with reference to a first rotation axis;
a second door frame spaced apart from the first door frame;
a second door rotatably disposed on the first door with reference to a second rotation axis and disposed at an interval from the second door frame; and
a connector which is connected between the first door and the second door and guides the first door and the second door to respectively rotate by taking the second rotating shaft as a reference;
wherein the connector comprises:
a first bracket supporting the first door;
a second bracket supporting the second door;
a first gear disposed on one side of the first holder;
a second gear disposed at one side of the second bracket and engaged with the first gear;
a third gear disposed on the other side of the first bracket;
a fourth gear disposed at the other side of the second bracket and engaged with the third gear;
a first shaft coupled to the first gear and the third gear; and
a second shaft coupled with the second gear and the fourth gear;
the first gear is linked with the third gear through a first shaft, and the second gear is linked with the fourth gear through a second shaft.
CN201880002786.7A 2018-08-22 2018-09-19 Connector for folding door and folding door Pending CN111083929A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
KR10-2018-0098241 2018-08-22
KR20180098241 2018-08-22
KR10-2018-0111246 2018-09-18
KR1020180111246A KR102018555B1 (en) 2018-08-22 2018-09-18 Connector using folding door and folder door
PCT/KR2018/011056 WO2020040344A1 (en) 2018-08-22 2018-09-19 Folding door connector and folding door

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CN110726278A (en) * 2018-07-17 2020-01-24 大宇电子株式会社 Foldable door for refrigerator
CN114790863A (en) * 2022-04-05 2022-07-26 揭阳市天艺五金制品有限公司 Metal hinge with from buffer function

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KR102628934B1 (en) * 2023-12-05 2024-01-23 최원규 Easy-to-install water barrier that does not require construction

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CN114790863A (en) * 2022-04-05 2022-07-26 揭阳市天艺五金制品有限公司 Metal hinge with from buffer function
CN114790863B (en) * 2022-04-05 2023-08-11 揭阳市骏昇精密五金实业有限公司 Metal hinge with self-buffering function

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KR102018555B1 (en) 2019-09-05
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