Auxiliary operation device for swing doors and swing doors equipped with this auxiliary operation device for swing doors

Abstract

To provide an auxiliary operation device for a swing door that can assist at least one of the opening operation and closing operation of the swing door with a simple configuration, and a swing door equipped with the auxiliary operation device for a swing door. [Solution] The auxiliary operation device for a swing door comprises a rail attached longitudinally to the upper frame of the opening of a structure, an assist unit that is mounted so as to be freely movable along the rail and has a mechanism that assists at least one of the opening and closing operations of the swing door, a connecting shaft installed vertically at the upper end of the swing door, and an arm whose one end is rotatably connected to the assist unit and whose other end is rotatably connected to the connecting shaft, and is configured so that the axis of the connecting shaft is positioned outside the axis of the swing door's pivot shaft in the opening direction of the swing door.

Description

[Technical Field]

[0001] The present invention relates to an auxiliary operation device for a hinged door that can assist at least one of the opening operation and closing operation of the hinged door, and to a hinged door equipped with this auxiliary operation device for a hinged door. [Background technology]

[0002] Conventionally, swing doors use arm stoppers or floor stoppers to limit the opening angle of the door to prevent the door or metal fittings from hitting the wall and damaging the interior.

[0003] In addition, swing doors are sometimes fitted with door closers that close open doors smoothly, reliably, and quietly at a safe speed. For example, a door closer that is fitted to a door and closes the door slowly without impact when it is opened and then closed reliably and completely at the closing end is disclosed (Patent Document 1).

[0004] The door closer disclosed in Patent Document 1 is a door closer in which the oil damper main body is attached to one side of the door and the door frame of the entrance to the building to which the door is to be attached, and the piston rod side of the oil damper is attached to the other side, the piston of the oil damper has a flow path that connects one chamber of the piston storage chamber defined by the piston to the other chamber, and near the flow path of the piston there is a valve body that moves as the piston moves and can be adjusted to increase the flow path cross-sectional area when the door moves in the opening direction and to decrease the flow path cross-sectional area when the door moves in the closing direction, the oil damper is also provided with a fluid pressure release means that causes fluid in one chamber of the piston storage chamber to suddenly flow out to the chamber opposite the piston movement side at the closing end of the door, and the oil damper is also provided with a spring that urges the piston in the closing direction of the door. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-193740 Summary of the Invention [Problem to be solved by the invention]

[0006] However, door closers and arm stoppers, which are devices for slowly and automatically closing doors, cannot be used together. There are also problems with door stops, such as the inability to attach them to the floor, the fact that they spoil the appearance even if attached, and the fact that the door stops make noise when they operate.

[0007] In addition, most conventional door closers have a door retraction angle of approximately 15 degrees, leaving few options. Door closers are often box-shaped and mounted directly on the top of the swing door, which can easily mar the door's appearance. Furthermore, if the door sags or becomes distorted over time, models in which the trigger separates from the main body can easily malfunction.

[0008] Therefore, the present invention solves the above-mentioned problems of the prior art, and its object is to provide an auxiliary operation device for a swing door that can assist at least one of the opening and closing operations of the swing door with a simple configuration, and a swing door equipped with this auxiliary operation device for a swing door.

[0009] Another object of the present invention is to provide an auxiliary operation device for a swing door that has small metal fittings that are visible when the door is closed, does not impair the exterior design, and can be easily installed, and a swing door equipped with this auxiliary operation device for a swing door. [Means for solving the problem]

[0010] According to the present invention, there is provided an auxiliary operation device for a swing door that assists at least one of the opening and closing operations of the swing door, and is provided with a rail attached to either the upper frame or the door of an opening in a structure, an assist unit that is mounted so as to be freely movable along the rail and has a mechanism that assists at least one of the opening and closing operations of the door, a connecting shaft that is installed vertically on the other of the upper frame or the door, and an arm that has one end rotatably connected to the assist unit and the other end rotatably connected to the connecting shaft, and is configured so that the axis of the connecting shaft is positioned outside the axis of the door's pivot shaft in the opening direction of the door.

[0011] In the assisting operation device for a hinged door of the present invention, an assisting unit having a mechanism for assisting at least one of the opening and closing operations of the hinged door is movably mounted along a rail attached in the longitudinal direction of the upper frame of the opening of a structure. One end of an arm is rotatably connected to the assisting unit, and the other end is rotatably connected to a connecting shaft installed vertically at the top end of the hinged door. The axis of the connecting shaft is located outside the axis of the pivot shaft of the hinged door in the opening direction of the hinged door. This makes it possible to assist at least one of the opening and closing operations of the hinged door with a simple configuration. Furthermore, the metal fittings visible when the door is closed are small, so the device can be easily installed without compromising the exterior design.

[0012] Furthermore, in the hinged door assisting operation device of the present invention, an assist unit having a mechanism for assisting at least one of the opening and closing operations of the hinged door is movably mounted along a rail attached in the longitudinal direction of the upper end of the hinged door. One end of an arm is rotatably connected to the assist unit, and the other end is rotatably connected to a connecting shaft installed vertically on the upper frame of the opening of the structure. The axis of the connecting shaft is located outside the axis of the hinged door's pivot shaft in the opening direction of the hinged door. This makes it possible to assist at least one of the opening and closing operations of the hinged door with a simple configuration. Furthermore, the metal fittings visible when the door is closed are small, so the device can be easily installed without compromising the exterior design.

[0013] It is also preferable that one end of the arm is rotatably connected between the longitudinal center of the assist unit and the end of the door having the rotation axis, thereby enabling the swing door to be opened and closed more smoothly.

[0014] It is also preferable that the assist unit comprises a pair of trigger members having protrusions that protrude into the inside of the rail when attached to both ends of the rail, and a main body having a mechanism for assisting both the opening and closing operations of the door, configured so that when the door travels along the rail, a braking part comes into contact with the trigger members to operate and reduce the travel speed, and stops after traveling a predetermined distance. This assists both the opening and closing operations of the hinged door, so that when closing, the door closes slowly without impact and is reliably fully closed at the closing end, and when opening, if the door is opened about halfway, the remaining part will automatically open slowly, and it can be reliably fully opened to the set maximum opening angle.

[0015] Of the pair of trigger members, the trigger member that activates the assist unit when the door is opened is preferably a movable trigger whose attachment position can be changed according to the door opening angle. This allows the operating range of the assist operation to be adjusted by changing the attachment position or length of the movable trigger. As a result, the maximum opening angle of the swing door can be determined.

[0016] Furthermore, according to the present invention, there is provided a hinged door equipped with the above-mentioned hinged door auxiliary operation device. [Effects of the Invention]

[0017] According to the present invention, an auxiliary operation device for a swing door that assists at least one of the opening and closing operations of a swing door includes a rail attached to either the upper frame or the door of an opening in a structure, an assist unit movably mounted along the rail and having a mechanism for assisting at least one of the opening and closing operations of the door, a connecting shaft installed vertically on the other of the upper frame or the door, and an arm pivotably connected at one end to the assist unit and at the other end to the connecting shaft, the axis of the connecting shaft being positioned outward in the door opening direction than the axis of the door's pivot shaft. This simple configuration makes it possible to assist at least one of the opening and closing operations of a swing door. Furthermore, the metal fittings visible when the door is closed are small, so the device can be easily installed without compromising the exterior design. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a perspective view showing the outline of a configuration of an auxiliary operation device for a hinged door according to an embodiment of the present invention; [Figure 2] FIG. 2 is a side view showing the schematic configuration of the hinged door auxiliary operation device of FIG. [Figure 3] 2 is an exploded perspective view showing a schematic positional relationship of each part of the swing door auxiliary operation device in FIG. 1 in a state where the door is closed. FIG. [Figure 4] 2 is an exploded perspective view showing a schematic positional relationship of each part of the swing door auxiliary operation device of FIG. 1 in a state where the door is fully open. FIG. [Figure 5] 2 is a perspective view showing a hinged door equipped with the hinged door auxiliary operation device of FIG. 1. FIG. [Figure 6] 2A and 2B show operational states of the hinged door equipped with the hinged door auxiliary operating device of FIG. 1 when opening and closing, where (A) shows the operational state when closing, and (B) shows the operational state when opening. DETAILED DESCRIPTION OF THE INVENTION

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of an auxiliary operation device for a hinged door and a hinged door equipped with the auxiliary operation device for a hinged door according to the present invention will be described with reference to the drawings.

[0020] FIG. 1 shows the configuration of an auxiliary operation device for a swing door 100 according to one embodiment of the present invention. In FIG. 1, a portion of the side of the rail 10 is cut away. FIG. 2 is a side view of the auxiliary operation device for a swing door 100 as seen from the opening side. In FIG. 2, the side of the rail 10 is cut away. FIG. 3 shows the positional relationship of each part when the swing door auxiliary operation device 100 is in a closed state. FIG. 4 shows the positional relationship of each part when the swing door auxiliary operation device 100 is in an open state. FIG. 5 shows the attached state of the swing door auxiliary operation device 100, i.e., a swing door 200 equipped with the swing door auxiliary operation device 100. FIG. 6 shows the operating states of the swing door 200 equipped with the swing door auxiliary operation device 100 when opening and closing, with FIG. 6(A) showing the operating state when closing and FIG. 6(B) showing the operating state when opening.

[0021] As shown in Figures 1 to 4, the auxiliary operation device 100 for a swing door comprises a rail 10 fixed to the upper frame F of the opening of a structure, an assist unit 20 that is mounted so as to be freely movable along the rail 10 and has a mechanism for assisting the opening and closing operations of the swing door, a connecting shaft 30 that is installed vertically at the upper end of the swing door, and an arm 40 that has one end rotatably connected to the assist unit 20 and the other end rotatably connected to the connecting shaft 30.

[0022] 5, the hinged door 200 is equipped with an auxiliary operation device for a hinged door 100. In this case, the rail 10 and the assist unit 20 are attached to the upper frame F of the opening of the structure, the connecting shaft 30 is installed vertically at the upper end of the door D, and the arm 40 is configured to connect the assist unit 20 and the connecting shaft 30.

[0023] 1 and 2, rail 10 is fixed to the upper frame F of an opening in a structure, and has an opening 11 along the axial direction on the lower surface of a hollow member having a substantially rectangular cross section perpendicular to the axis, and a pair of grooves 13 facing each other and parallel to an upper surface 12 at the upper inside portion. It also has an opening 14 between the pair of grooves 13. In addition, mounting holes are provided on the upper surface 12 at predetermined positions near both end surfaces of rail 10, for fixing trigger members 22 and 23 to the rail and upper frame with screws.

[0024] The assist unit 20 is mounted so as to be freely movable along the rail and comprises a main body 21 having a mechanism for assisting both the opening and closing operations of the hinged door D, and a pair of trigger members 22 and 23 having protrusions that protrude inward of the rail 10 when attached to the upper surface 12 on both ends of the rail 10, respectively.

[0025] The main body 21 includes a braking unit 21A that assists the closing operation by contacting and engaging the trigger member 22 to generate a braking force, reducing the travel speed and stopping the vehicle after traveling a predetermined distance; a braking unit 21B that assists the opening operation by contacting and engaging the trigger member 23 to generate a braking force, reducing the travel speed and stopping the vehicle after traveling a predetermined distance; and multiple traveling rollers 21C attached to both ends. Each of the braking units 21A and 21B has locking protrusions 21a and 21b that engage with the trigger members 22 and 23, respectively, and a braking force generating unit disposed inside the casing that generates a braking force using a spring, hydraulic pressure, air pressure, or a gear mechanism. The specific configuration of the braking force generating unit can be designed as needed. The main body 21 is mounted within the rail 10 via multiple traveling rollers 21C for free movement.

[0026] The trigger member 22 is a fixed trigger formed, for example, by sheet metal processing from a metal plate. This trigger member 22 has a protrusion 22a formed in the center that protrudes inward from the rail 10 when attached to the rail 10, mounting holes 22b formed on both sides of the protrusion 22a, and recovery pawls 22c formed at both ends as malfunction correction units. The protrusion 22a is configured so that it can abut against and lock onto the locking protrusion 21a of the braking unit 21A. The recovery pawl 22c functions as a malfunction correction unit for the braking unit 21A. The trigger member 22 is also attached to the rail 10 in advance at an auxiliary start position for the closing operation of the swing door.

[0027] The trigger member 23 is a movable trigger. When attached to the rail 10, the trigger member 23 has a protrusion 23a that protrudes inward from the rail 10, an attachment portion 23b located at the rear end, and a recovery claw 23c located at the front end. When the hinged door opens, the protrusion 23a of the trigger member 23 can activate the assist unit of the main body portion 21. The attachment portion 23b also has a screw hole for attaching the trigger member 23 to the rail 10 side with a screw S. When the hinged door opens, the end of the main body portion 21 abuts against the attachment portion 23b, thereby restricting the movement range of the main body portion 21. The movement range of the main body portion 21 can be adjusted by the attachment position of the attachment portion 23b. In other words, the attachment position can be changed depending on the opening angle of the hinged door. The recovery claw 23c functions as a malfunction correction unit for the brake unit 21B.

[0028] The connecting shaft 30 is installed vertically on the upper end of the door D via, for example, an inverted-L-shaped bracket 31 serving as a mounting fixture. The connecting shaft 30 is fixed to a horizontal surface 31a of the inverted-L-shaped bracket 31. A vertical surface 31b of the inverted-L-shaped bracket 31 is fixed to the surface of the door D. In this case, the axis Y of the connecting shaft 30 is configured to be positioned outward in the opening direction of the door D from the axis Z of the pivot shaft H of the hinged door. As shown in FIG. 3 , the distance between the axis Y of the connecting shaft 30 and the axis Z of the pivot shaft of the door D is set to L. Furthermore, the mounting dimension of the inverted-L-shaped bracket 31 can be kept small, allowing the exterior design of the door D to be maintained in a good condition.

[0029] The arm 40 is formed from a metal plate, and one end 40a is rotatably connected to the underside of the main body 21 of the assist unit 20 via a connecting pin 41, and the other end 40b is rotatably connected to a connecting shaft 30 installed vertically at the upper end of the hinged door. The arm 40 also functions as an arm stopper.

[0030] Hereinafter, a method for attaching the hinged door auxiliary operation device 100 will be described with reference to Figs.

[0031] To install the swing door auxiliary operation device 100, first, the main body 21 of the assist unit 20 is movably attached to the inside of the rail 10, and the trigger members 22, 23 are inserted from both ends of the rail 10. Next, the rail 10 is fixed to the upper frame F of the opening of the structure.

[0032] Next, the trigger member 22 is attached to the top surface 12 of the rail 10 on the door-end side. The attachment position of this trigger member 22 is aligned with the braking start position of the closing operation of the door D. Next, with the hinged door in the closed state (the state shown in Figure 3), the bracket 31 is fixed to the surface of the door D.

[0033] Next, with the door D in the open state (the state shown in FIG. 4), the trigger member 23 is attached to the upper surface 12 of the rail 10 on the door trailing edge side. The attachment position of this trigger member 23 is aligned with the desired opening angle of the door D, and with the rear end of the main body 21 of the assist unit 20 abutting against the front end face of the attachment part 23b of the trigger member 23, the attachment part 23b is attached to the upper surface 12 of the rail 10 with the screw S. This makes it easy to attach the hinged door auxiliary operation device 100.

[0034] Hereinafter, the operation state of the hinged door auxiliary operation device 100 will be described with reference to Figs.

[0035] When closing the door D, as shown in Figures 3 and 6(A), as the door D rotates in the closing direction, the main body 21 of the assist unit 20 moves in conjunction with the arm 40 from the door trailing end to the door leading end of the rail 10, and the locking protrusion 21a of the braking part 21A that assists the closing operation comes into contact with and locks with the protrusion 22a of the trigger member 22, causing the closing operation assist mechanism (braking force generating part) to generate a braking force. As a result, the door D rotates slowly to the fully closed position in the closing operation assist area in Figure 6(A).

[0036] On the other hand, when the door D is opened, as shown in Figures 4 and 6(B), as the door D rotates in the opening direction, the main body 21 of the assist unit 20 moves in conjunction with the arm 40 from the door leading end to the door trailing end of the rail 10. The locking protrusion 21b of the braking unit 20B, which assists the opening operation, abuts and locks against the protrusion 23a of the trigger member 23, causing the opening operation assist mechanism (braking force generating unit) to generate a braking force. As a result, the door D slowly rotates to the fully open position in the opening operation assist area in Figure 6(B).

[0037] As explained above, the swing door assisting operation device 100 of this embodiment includes the rail 10 fixed to the upper frame F of the opening of the structure, the assist unit 20 movably attached along the rail 10 and having a mechanism for assisting the opening and closing operations of the door D, the connecting shaft 30 installed vertically at the upper end of the door D, and the arm 40 having one end rotatably connected to the assist unit 20 and the other end rotatably connected to the connecting shaft 30. Furthermore, the axis Y of the connecting shaft 30 is configured to be located outside the axis Z of the rotation shaft of the door D in the opening direction of the door D.

[0038] As a result, both the opening and closing operations of the swing door D are assisted within a specified range, so that when closing, it closes slowly without impact and can be reliably fully closed at the closing end, and when opening, if the door D is opened about halfway, the remaining part will automatically open slowly, and it can be reliably fully opened to the set maximum opening angle.

[0039] Therefore, the swing door assisting operation device 100 of this embodiment has a simple configuration and can assist both the opening and closing operations of the swing door D. In addition, the metal fittings that are visible when the door is closed are small, and can be easily installed without compromising the exterior design.

[0040] In addition, one end 40a of the arm 40 is rotatably connected between the longitudinal center of the assist unit 20 and the end of the door D having the rotation axis H, so that the swing door can be opened and closed more smoothly.

[0041] Furthermore, the trigger member 23 that activates the assist unit 20 when the door D is opened uses a movable trigger whose attachment position can be changed according to the door opening angle, and by changing the attachment position or length of the movable trigger, the operating range of the assist operation can be adjusted. Therefore, the maximum opening angle of the door D can be specified.

[0042] In the above-described embodiment of the hinged door assisting operation device 100, an example has been described in which the assist unit 20 having an assisting mechanism capable of assisting both the opening operation and the closing operation of the hinged door D is used, but the present invention is not limited to this. An assist unit having a mechanism for assisting either the opening operation or the closing operation of the hinged door may also be used.

[0043] Furthermore, in the above-described embodiment of the assisting operation device for a swing door 100, an example has been described in which the rail 10 and the assist unit 20 are installed on the upper frame F of the opening of the structure, and the connecting shaft 30 is installed at the upper end of the door D, but the present invention is not limited to this. For example, the rail 10 and the assist unit 20 may be installed at the upper end of the door D, and the connecting shaft 30 may be installed on the upper frame of the opening of the structure.

[0044] The present invention is not limited to the above-described embodiments, and its technical scope includes various modified design forms within the scope that do not deviate from the gist of the invention described in the claims. [Explanation of symbols]

[0045] 10 Rail 11 Aperture 12 Top side 13 Groove 14 Openings 20 Assist Units 21 Main body 21A, 21B Braking part 21a, 21b Locking protrusion 22 Trigger member 22a Protrusion 22b mounting hole 22c recovery nail 23 Trigger member (movable trigger) 23a Protrusion 23b Mounting part 23c recovery nail 30 Connecting shaft 31 Bracket (mounting bracket) 31a horizontal plane 31b vertical plane 40 Arm 40a one end 40b other end 41 Connecting pin 100 Auxiliary operating device for swing door 200 Swing Door D Door F Upper frame H Door pivot axis L distance between axes S screw Y Axis of connecting shaft Z Axis of the swing door pivot

Claims

1. An auxiliary operation device for a swing door that assists at least one of the opening operation and closing operation of a swing door, a rail attached to either the upper frame of the opening of the structure or the door; an assist unit that is movably mounted along the rail and has a mechanism that assists at least one of the opening and closing operations of the door; A connecting shaft installed vertically on the other of the upper frame or the door; an arm having one end rotatably connected to the assist unit and the other end rotatably connected to the connecting shaft, The auxiliary operation device for a swing door is characterized in that the axis of the connecting shaft is positioned outside the axis of the pivot shaft of the door in the opening direction of the door.

2. 2. The assisting operation device for a swing door according to claim 1, wherein one end of the arm is rotatably connected between the longitudinal center of the assist unit and the end of the door having a rotation axis.

3. The assist unit is a pair of trigger members each having a protrusion that protrudes inwardly from the rail when attached to both ends of the rail; The auxiliary operation device for a swing door according to claim 2, further comprising a main body having a mechanism for assisting both the opening and closing operations of the door, wherein a braking part comes into contact with the trigger member when the door travels along the rail, operates to reduce the movement speed, and stops after traveling a predetermined distance.

4. The auxiliary operation device for a swing door according to claim 3, characterized in that the trigger member of the pair of trigger members that operates the assist unit when the door is opened is a movable trigger whose mounting position can be changed depending on the opening angle of the door.

5. A hinged door comprising the hinged door auxiliary operation device according to any one of claims 1 to 4.

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