Orito

Abstract

To provide a folding door and a method for connecting a door of the folding door, which can suppress pinching without using a dedicated member in a hinge part.SOLUTION: A folding door includes: a door consisting of a hanging door 10 and a door end door 20 connected to the hanging door 10; and a hinge 30 connecting the hanging door 10 and the door end door 20. The hinge 30 includes: a first blade 31 fixed to a door end surface 13 of the hanging door 10 facing the door end door 20 when the hanging door 10 is fully closed; a second blade 32 fixed to a door tail end surface 24 of the door end door 20 facing the hanging door 10 when the door end door 20 is fully closed; and a rotating part 33 for rotatably supporting the first blade 31 and the second blade 32. The rotating part 33, a part of the first blade 31, and a part of the second blade 32 are provided at positions exposed from a door back surface 12 of the hanging door 10 and a door back surface 22 of the door end door 20 in the fully closed state.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to folding doors. to the door

Background Art

[0002] In the folding door described in Patent Document 1, a hinge part connects the hanging-side door and the door-end side door. A U-shaped space for preventing pinching is formed in the hinge part.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, the hinge part of the folding door described in Patent Document 1 includes a steel plate-like body such as a first connection part, a second connection part, and a connection part that connects the first connection part and the second connection part in order to form a U-shaped space. In the folding door described in Patent Document 1, since a dedicated member made of a steel plate-like body is required, the cost increases. There is a need for a folding door that can suppress pinching without using a dedicated member for the hinge part.

Means for Solving the Problems

[0005] The folding door that solves the above problems includes a door including a hanging-side door and a door-end side door connected to the hanging-side door, and a hinge that connects the hanging-side door and the door-end side door. The hinge includes a first blade fixed to an end surface of the hanging-side door facing the door-end side door when the door is fully closed, a second blade fixed to an end surface of the door-end side door facing the hanging-side door when the door is fully closed, and a rotating part that rotatably supports the first blade and the second blade. A part of the rotating part, a part of the first blade, and a part of the second blade are provided at positions exposed from the door surface of the fully closed door.

[0006] ​ According to the above configuration, the rotating part of the hinge and a portion of the first and second wings are positioned so as to be exposed from the door surfaces of the hinged door and the leading door when the door is fully closed. Therefore, when the folding door is fully open, a gap is created between the folded hinged door and the leading door by the amount of the exposed rotating part, which prevents a part of the body from being caught between the hinged door and the leading door. Thus, pinching can be prevented without using a special component in the hinge.

[0007] With respect to the folding door described above, it is preferable that the first and second wings are fixed to the hinged door and the leading door, respectively, such that the distance between the tip of the first wing and the tip of the second wing is greater than or equal to a threshold when the door is fully closed.

[0008] With respect to the folding door described above, it is preferable that the end face of the hinge-side door to which the hinge is fixed and the end face of the door-side door are inclined such that the distance between the end faces increases as they move away from the axis of rotation of the rotating part when the door is fully closed.

[0009] With respect to the folding door described above, it is preferable that the first wing is fixed to the end face of the hinged door so as to be perpendicular to the door surface of the hinged door. With respect to the folding door described above, it is preferable that the second wing is fixed to the end face of the leading door so as to be perpendicular to the door surface of the leading door.

[0010] With respect to the folding door described above, it is preferable to provide a cover member that closes the opening on the side opposite to the side on which the hinge is provided in the space between the end face of the hinge door and the end face of the door edge when the door is fully closed.

[0011] With respect to the folding door described above, it is preferable that the hinges are provided along the entire height of the door. 。 [Effects of the Invention]

[0016] According to the present invention, no special components are required. [Brief explanation of the drawing]

[0017] [Figure 1] A front view showing the schematic configuration of one embodiment of a folding door when fully closed. [Figure 2] A rear view showing the general configuration of the folding door of the same embodiment when fully closed. [Figure 3] A plan view showing the general configuration of the folding door in the same embodiment when fully closed. [Figure 4] A plan view showing the general configuration of the folding door in the fully open position according to the same embodiment. [Figure 5] An enlarged cross-sectional view showing the schematic configuration of the hinge portion of the folding door in the same embodiment when fully closed. [Figure 6] An enlarged cross-sectional view showing the general configuration of the hinge portion of the folding door in the same embodiment when fully open. [Figure 7] An enlarged cross-sectional view showing the approximate configuration of the hinge section of a modified folding door when fully closed. [Figure 8] An enlarged cross-sectional view showing the approximate configuration of the hinge section of a modified folding door when fully closed. [Modes for carrying out the invention]

[0018] An embodiment of a folding door will be described below with reference to Figures 1 to 6. The folding door is installed in an opening in a building or the like. The doors of the folding door are connected by a folding door connection method. (Folding door 1)

[0019] As shown in Figures 1 to 4, the folding door 1 comprises a main door 10, a leading door 20, and a hinge 30. The main door 10 is rotatably mounted to the opening 2 of the building. The leading door 20 is connected to the main door 10. The hinge 30 connects the main door 10 and the leading door 20. The leading door 20 and the main door 10 are folded via the hinge 30. The hinge 30 functions as a hinge mechanism. The hinge 30 is a common commercially available product.

[0020] On the upper part of the folding door 1, a driving part (not shown) is installed. As shown in FIGS. 3 and 4, by rotating the drive shaft 50 at the door end of the hanging end door 10 by the driving part, the hanging end door 10 rotates around the door end. A clamping prevention member 51 is provided at the door end of the hanging end door 10. A guide roller 26 is attached to the upper part of the door tip door 20. The guide roller 26 drives along a guide rail (not shown), so that the door tip of the door tip door 20 moves linearly toward the door end of the hanging end door 10. The folding door 1 is in the fully open state when the door tip door 20 and the hanging end door 10 are folded (see FIG. 4). The folding door 1 is in the fully closed state when the door tip door 20 and the hanging end door 10 are not folded and are in a straight line (see FIG. 3). A cushion member 25 is attached to the door tip end face 23 of the door tip door 20. When fully closed, the door end face 14 of the hanging end door 10 faces the vertical frame of the opening 2, and the door tip end face 23 of the door tip door 20 faces the vertical frame of the opening 2. Glass materials are fitted into the hanging end door 10 and the door tip door 20.

[0021] (hinge 30) As shown in FIG. 5, the hinge 30 includes a first blade 31, a second blade 32, and a rotating part 33. The first blade 31 is fixed to the door tip end face 13 facing the door tip door 20 when the hanging end door 10 is fully closed. The first blade 31 is fixed to the door tip end face 13 of the hanging end door 10 by screws 35. The second blade 32 is fixed to the door end face 24 facing the hanging end door 10 when the door tip door 20 is fully closed. The second blade 32 is fixed to the door end face 24 of the door tip door 20 by screws 35. The rotating part 33 supports the first blade 31 and the second blade 32 rotatably. As shown in FIG. 2, the hinge 30 is provided over the entire height direction of the hanging end door 10 and the door tip door 20. Note that the step of fixing the first blade 31 to the door tip end face 13 of the hanging end door 10 and fixing the second blade 32 to the door end face 24 of the door tip door 20 corresponds to the fixing step.

[0022] As shown in Fig. 5, a part of the rotating part 33, a part of the first blade 31, and a part of the second blade 32 are provided at positions exposed from the back surface 12 of the hanging-side door 10 and the back surface 22 of the leading-edge door 20 in the fully closed state. That is, the first blade 31 of the hinge 30 protrudes from the back surface 12 of the hanging-side door 10 by a length L1. Similarly, the second blade 32 of the hinge 30 protrudes from the back surface 22 of the leading-edge door 20 by a length L1. The length L1 is, for example, 12.5 mm.

[0023] As shown in Figs. 4 and 6, when the folding door 1 is in the fully open state, that is, when the hanging-side door 10 and the leading-edge door 20 are folded, a distance WO between the back surface 12 of the hanging-side door 10 and the back surface 22 of the leading-edge door 20 is ensured. The distance WO is the sum of the length L1 by which the first blade 31 protrudes from the back surface 12 of the hanging-side door 10 and the length L1 by which the second blade 32 protrudes from the back surface 22 of the leading-edge door 20 (WO = L1 + L1). The distance WO is 25 mm, which is the same as the lower limit value of the safety distance required as a finger pinching prevention measure in the safety standards for automatic doors in general. Therefore, the length L1 is preferably 12.5 mm or more. The first blade 31 and the second blade 32 are respectively fixed to the hanging-side door 10 and the leading-edge door 20 so as not to be straight in the fully open state.

[0024] As shown in Fig. 5, the first blade 31 and the second blade 32 are respectively fixed to the hanging-side door 10 and the leading-edge door 20 so that the distance WC between the tip of the first blade 31 and the tip of the second blade 32 is equal to or greater than the threshold value in the fully closed state. That is, the first blade 31 and the second blade 32 are not parallel in the fully closed state. The threshold value is 25 mm, which is the same as the lower limit value of the safety distance required as a finger pinching prevention measure in the safety standards for automatic doors in general. Therefore, the distance WC is preferably 25 mm or more.

[0025] As shown in Figure 5, the leading edge surface 13 of the hinged door 10 and the trailing edge surface 24 of the leading door 20 are inclined such that the distance between the end surfaces increases as they move away from the rotation axis P of the rotating part 33 when the door is fully closed. The leading edge surface 13 of the hinged door 10 and the trailing edge surface 24 of the leading door 20 are tapered. Therefore, when the folding door 1 is fully closed, a space is secured between the first wing 31 and the second wing 32 of the hinge 30. The distance between the leading edge surface 13 of the hinged door 10 and the trailing edge surface 24 of the leading door 20 can be changed by changing the taper angle between the leading edge surface 13 of the hinged door 10 and the trailing edge surface 24 of the leading door 20.

[0026] As shown in Figure 5, the folding door 1 is equipped with a cover member 40. When fully closed, the cover member 40 closes the opening on the opposite side of the hinge 30 in the space A between the door tip surface 13 of the main door 10 and the door tail end surface 24 of the leading door 20. The cover member 40 is made of soft resin. The cover member 40 is equipped with a first cover 41 and a second cover 42. The first cover 41 and the second cover 42 are L-shaped members in cross-section. The first cover 41 is fixed to the door tip surface 13 of the main door 10 by screws 45. The portion of the door tip surface 13 of the main door 10 to which the first cover 41 is fixed is perpendicular to the door surface 11. The second cover 42 is fixed to the door tail end surface 24 of the leading door 20 by screws 45. The portion of the door tail end surface 24 of the leading door 20 to which the second cover 42 is fixed is perpendicular to the door surface 21. The surfaces of the cover member 40 that meet the door surfaces 11 and 21 are in a straight line with the door surfaces 11 and 21 in a plan view when the folding door 1 is fully closed.

[0027] As shown in Figure 1, the cover member 40 is provided across the entire height of the hinge door 10 and the leading door 20. Therefore, when the folding door 1 is fully closed, the cover member 40 hides the hinges 30 and screws 35, improving the aesthetic appearance. Furthermore, even if a finger is caught between the first cover 41 and the second cover 42, the impact can be mitigated because the cover member 40 is made of soft resin.

[0028] (action) Next, with reference to Figures 3 to 6, the operation of the folding door 1 configured as described above will be explained.

[0029] As shown in Figures 3 and 5, when the folding door 1 is fully closed, the hinged door 10 and the leading door 20 are in a straight line. A space A is formed between the leading edge surface 13 of the hinged door 10 and the trailing edge surface 24 of the leading door 20. Even if a finger is placed between the leading edge surface 13 of the hinged door 10 and the trailing edge surface 24 of the leading door 20, there is enough distance to prevent the finger from being pinched. The opening of space A is covered by the cover member 40. As a result, the hinges 30 and the screws 35 that fix the hinges 30 are not visible from the door surfaces 11 and 21, and furthermore, the back surfaces 12 and 22 of the door are not visible from the door surfaces 11 and 21. Thus, the aesthetic appearance is improved.

[0030] As shown in Figures 4 and 6, when the folding door 1 is fully open, the main door 10 and the leading door 20 fold together via the hinge 30. The folding door 1 folds when the drive shaft 50 rotates the tail end of the main door 10, which pulls the hinge 30, causing the leading door 20 to rotate. The space A between the leading end surface 13 of the main door 10 and the tail end surface 24 of the leading door 20 disappears when the door is opened. A distance WO is formed between the back surface 12 of the main door 10 and the back surface 22 of the leading door 20. The distance WO corresponds to the sum of the length L1 that the hinge 30 extends from the back surface 12 of the main door 10 and the back surface 22 of the leading door 20. Even if a finger is placed between the back surface 12 of the main door 10 and the back surface 22 of the leading door 20, a distance WO is ensured that the finger will not be pinched.

[0031] When folding door 1 changes from a fully open state to a fully closed state, there is a risk of fingers getting caught between the leading edge surface 13 of the hinged door 10 and the trailing edge surface 24 of the leading door 20. However, since there is a space A between the leading edge surface 13 of the hinged door 10 and the trailing edge surface 24 of the leading door 20, it is possible to prevent fingers or other objects from getting caught.

[0032] By positioning the hinge 30 relative to the front edge 13 of the main door 10 and the rear edge 24 of the leading door 20 in a position exposed from the back of the folding door 1, a distance WO can be maintained between the back surface 12 of the main door 10 and the back surface 22 of the leading door 20 when fully open. Furthermore, by making the shape of the front edge 13 of the main door 10 and the rear edge 24 of the leading door 20 of the hinge 30 tapered, a space A can be formed between the front edge 13 of the main door 10 and the rear edge 24 of the leading door 20 when fully closed. Therefore, by using a general-purpose hinge 30, pinching can be suppressed without using a special component in the hinge.

[0033] Next, the effects of this embodiment will be described. (1) The rotating part 33 of the hinge 30, a part of the first wing 31, and a part of the second wing 32 are positioned so as to be exposed from the door surfaces of the main door 10 and the leading door 20 when the door is fully closed. As a result, when the folding door 1 is fully open, a gap WO is created between the folded main door 10 and the leading door 20 by the amount of the rotating part 33 that is exposed, which prevents a part of the body from being caught between the main door 10 and the leading door 20. Thus, pinching can be prevented without using a special component in the hinge.

[0034] (2) When the first wing 31 and the second wing 32 of the hinge 30 are fully closed, the distance WC between the tip of the first wing and the tip of the second wing is greater than the threshold, meaning they are not parallel. As a result, there is a larger gap between the first wing 31 and the second wing 32 than when they are parallel. Therefore, when the folding door 1 is fully closed, it is possible to prevent a part of the body from being caught between the front end surface 13 of the hinged door 10 and the rear end surface 24 of the leading door 20.

[0035] (3) As the first and second wings 31 and 32 of the hinge 30 move further away from the rotation axis P of the rotating part 33 when fully closed, the distance between their end faces increases, creating a gap between the first and second wings 31 and 32. This prevents any part of the body from getting caught between the leading edge 13 of the hinged door 10 and the trailing edge 24 of the leading door 20 when the folding door 1 is fully closed.

[0036] (4) When fully closed, the cover member 40 closes the opening on the opposite side of the space A between the end face of the hinge door 10 and the end face of the leading door 20, where the hinge 30 is located. As a result, the fixing parts such as the screws 35 that secure the hinge 30 are no longer visible, improving the aesthetic appearance.

[0037] (5) The hinges 30 are provided along the entire height of the folding door 1, which improves the aesthetic appearance. In addition, the cover member 40 is provided along the entire height of the folding door 1, which improves the aesthetic appearance.

[0038] (Other embodiments) The above embodiment can be implemented with the following modifications. The above embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

[0039] In the above embodiment, the door is inclined such that the distance between the leading edge surface 13 of the hinged door 10 and the trailing edge surface 24 of the leading door 20 increases as it moves away from the rotation axis P of the rotating part 33 when fully closed. However, as shown in Figure 7, the leading edge surface 13 of the hinged door 10 may be perpendicular to the door surface 11 and the door back surface 12 of the hinged door 10. With this configuration, the processing work is simplified because the end surface is inclined only with respect to the trailing edge surface 24 of the leading door 20. In addition, the hinged door 10 can start moving faster than the leading door 20 when the doors are driven.

[0040] In the above embodiment, the door is inclined such that the distance between the leading edge surface 13 of the hinged door 10 and the trailing edge surface 24 of the leading door 20 increases as it moves away from the rotation axis P of the rotating part 33 when fully closed. However, as shown in Figure 8, the trailing edge surface 24 of the leading door 20 may be perpendicular to the door surface 21 and door back surface 22 of the leading door 20. With this configuration, the processing work is simplified because the end surface is inclined only with respect to the leading edge surface 13 of the hinged door 10. In addition, the leading door 20 can start moving faster than the hinged door 10 when the door is driven.

[0041] In the above embodiment, the cover member 40 is provided such that the surfaces of the door surfaces 11 and 21 are in a straight line with the door surfaces 11 and 21 in a plan view when the folding door 1 is fully closed. However, the first cover 41 and the second cover 42 may be provided so that they partially overlap.

[0042] In the above embodiment, the portion of the door tip surface 13 of the hinged door 10 to which the first cover 41 is fixed is perpendicular to the door surface 11, and the portion of the door tail end surface 24 of the leading door 20 to which the second cover 42 is fixed is perpendicular to the door surface 21. However, the portion of the door tip surface 13 of the hinged door 10 to which the first cover 41 is fixed may have the same tapered shape as the portion to which the first wing 31 is fixed. Also, the portion of the door tail end surface 24 of the leading door 20 to which the second cover 42 is fixed may have the same tapered shape as the portion to which the second wing is fixed.

[0043] In the above embodiment, the cover member 40 comprises a first cover 41 and a second cover 42. However, the cover member may be provided on only one side, and the cover member on that side may be extended to the length of the opening of space A.

[0044] In the above embodiment, the hinges 30 are provided along the entire height of the folding door 1. However, the hinges may be shorter than the height of the folding door 1. Alternatively, multiple hinges may be provided at intervals along the height of the folding door 1.

[0045] In the above embodiment, the cover member 40 is provided over the entire height of the folding door 1. However, the cover member may be shorter than the height of the folding door 1. Alternatively, multiple cover members may be provided at intervals along the height of the folding door 1. Furthermore, the cover member may be provided only in the portion where the hinges are installed.

[0046] In the above embodiment, the cover member 40 has an L-shaped cross-section. However, the cross-sectional shape of the cover member 40 is not limited as long as it can cover space A. The cross-sectional shape of the cover member 40 may be, for example, a semicircular shape.

[0047] In the above embodiment, a cover member 40 is provided. However, the cover member may be omitted. In the above embodiment, a drive unit is provided. However, if manual operation is sufficient, the drive unit may be omitted.

[0048] In the above embodiment, a cushion member 25 is provided on the leading edge surface 23 of the door 20. However, the cushion member 25 may be omitted. In the above embodiment, the main door 10 and the leading door 20 are doors fitted with glass material. However, the configuration of the main door 10 and the leading door 20 can be arbitrarily set.

[0049] In the above embodiment, a structure composed of multiple objects may be integrated, or conversely, a structure composed of a single object may be divided into multiple objects. Whether or not the objects are integrated, the structure should be configured in a way that achieves the objective of the invention. [Explanation of Symbols]

[0050] 1...Folding door 2…Opening 10...Hinged door 11… Door surface 12... Back of the door 13…Door front end 14…Door end face 20... Door front 21… Door surface 22... Back of the door 23... Door end surface 24…Door end face 25… Cushioning material 26… Guide roller 30...Hinges 31...First feather 32... Second feather 33... Rotating part 35...bis 40... Cover component 41…First cover 42…Second cover 45...bis 50…Drive shaft 51…Anti-pinch member A...space L1...Length P... Rotation axis WC…Distance WO... distance

Claims

1. A door consisting of a hinged door and a leading door connected to the hinged door, The system includes a hinge connecting the main door and the leading door, The aforementioned hinge is, A first vane is fixed to the end face of the hinge door that faces the leading door when the door is fully closed, A second vane is fixed to the end face of the door edge that faces the hinge door when the door is fully closed, A rotating part that rotatably supports the first blade and the second blade, The door comprises a cover member that closes the opening on the side opposite to the side on which the hinge is provided in the space between the end face of the hinge door and the end face of the door edge door when the door is fully closed, The rotating part and a portion of the first blade and a portion of the second blade are provided in a position exposed from the door surface of the door when it is fully closed. The cover member comprises a first cover fixed to the end face of the hinged door and a second cover fixed to the end face of the leading door. When fully closed, a portion of the first cover and a portion of the second cover are aligned with the side of the door opposite to the door surface, thereby blocking the opening. Folding door.

2. The first and second blades are fixed to the hinged door and the leading door, respectively, such that the distance between the tip of the first blade and the tip of the second blade is greater than or equal to a threshold when the door is fully closed. The folding door according to claim 1.

3. The end face of the hinge-side door to which the hinge is fixed and the end face of the door-side door are inclined such that the distance between the end faces increases as they move away from the axis of rotation of the rotating part when the door is fully closed. The folding door according to claim 1.

4. The first wing is fixed to the end face of the hinged door so as to be perpendicular to the door surface of the hinged door. The folding door according to claim 2.

5. The second wing is fixed to the end face of the door so as to be perpendicular to the door surface of the door. The folding door according to claim 2.

6. The aforementioned hinge is provided along the entire height of the door. The folding door according to claim 1.

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