JP6722968B1 - Hinged door and door opening and closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly open and close a hinged door with a foot in a state where a lock is opened with a foot. A door knob mounting portion that is configured and has a spacing portion apart from the rotation axis of the door knob; and a linear member that is coupled to the spacing portion of the door knob mounting portion and that transmits an axial tension force and releases an axial compression force; It is configured so that it can be attached below the doorknob, and is connected to the doorknob mounting portion via a linear member, and the doorknob can be rotated by pulling the doorknob mounting portion via the linear member when pushed down by the operator's foot. And a wheel portion which is provided at the bottom of the footboard and is configured to come into contact with the floor when the footboard is pushed down and to roll on the floor when the hinged door is opened and closed. .. [Selection diagram] Fig. 3

Description

This specification discloses the technique regarding a hinged door and a door opening/closing device.

Some hinged doors have a door knob that unlocks by rotating. Patent Documents 1 and 2 propose a device for unlocking a hinged door by pushing down a footboard connected to the doorknob with a foot for the purpose of unlocking a hinged door lock having a doorknob.

JP, 10-54162, A JP, 10-252319, A

In a device for opening a hinged door lock having a door knob with a foot, a sufficient study has not been made on smoothly opening and closing a hinged door with a foot while the door is unlocked.

The technology disclosed in this specification can be implemented as the following modes.

(1) A door opening/closing device according to an aspect disclosed in the present specification opens/closes a hinged door having a door knob that opens a lock by rotation. This door opening/closing device is configured to be attachable to the door knob, and has a door knob attachment portion having a distance portion away from a rotation axis of the door knob; and is connected to the distance portion of the door knob attachment portion to transmit an axial tensile force. A linear member for releasing an axial compressive force; configured to be attached below the door knob in the hinged door, connected to the door knob attachment portion via the linear member, and pushed down by an operator's foot And a footstep plate configured to rotate the doorknob by pulling the doorknob attachment part via the linear member; provided on the bottom part of the footstep plate and contacting the floor as the footstep plate is pushed down A wheel portion configured to be rollable on the floor when the hinged door is opened and closed. According to the door opening/closing device of this aspect, since the wheel portion that comes into contact with the floor in the state where the footboard is pressed down rolls on the floor as the hinged door is opened and closed, the lock of the hinged door is opened by the foot, You can open and close the hinged door smoothly with your feet. Further, since the wheel portion supports the footboard by the wheel portion contacting the floor while the footboard is pushed down, damage to the hinged door and the door opening/closing device due to excessive depression of the footboard can be prevented. Also, since the footboard is connected to the doorknob via a linear member that releases the axial compression force, the footboard cannot be pushed down when the operator manually operates the doorknob, and the wheels also touch the floor. Therefore, it is possible to realize a configuration in which the swing door can be operated by the foot without deteriorating the operability of the swing door by the hand. Moreover, since the hinged door can be opened and closed without touching the doorknob by hand, virus infection through the doorknob can be prevented.

(2) In the door opening/closing device according to the above-mentioned embodiment, the footstep plate has an upper surface facing upward; an end portion on a side away from the hinged door; located on the end portion side with respect to the upper surface and above the upper surface. It may have a protruding portion. According to the door opening/closing device of this aspect, when pulling the hinged door toward the operator with the footboard being pushed down, the protrusion of the footboard is caught on the sole of the operator, which is combined with the rolling of the wheel portion. You can open and close the hinged door more smoothly with your feet.

(3) In the door opening/closing device of the above aspect, the linear member may be connected to the footboard via a tension coil spring. According to the door opening/closing device of this aspect, the extension of the tension coil spring can prevent the linear member from loosening. Further, due to the expansion and contraction of the tension coil spring, it is possible to provide a margin for the position where the foot plate is attached to the hinged door.

(4) The hinged door according to one embodiment disclosed in the present specification is connected to a rotating mechanism that unlocks by rotation; and is connected to a separating portion of the rotating mechanism, which is separated from a rotating shaft, and transmits an axial tensile force, and an axial direction. A linear member that releases a compressive force; located below the rotating mechanism in the hinged door, connected to the rotating mechanism via the linear member, and via the linear member when pushed down by an operator's foot. And a foot plate configured to rotate the rotation mechanism by pulling the rotation mechanism; provided on a bottom portion of the foot plate, contacting the floor when the foot plate is pushed down, and opening and closing the hinged door. Accordingly, the wheel unit is configured to be rollable on the floor. According to the hinged door of this form, since the wheel portion that comes into contact with the floor while the footboard is pushed down rolls on the floor as the hinged door is opened and closed, the hinged door can be used as it is while the lock is released with the foot. Can be opened and closed smoothly. Further, since the wheel portion supports the footboard by the wheel portion contacting the floor while the footboard is pushed down, damage to the door opening/closing device due to excessive depression of the footboard can be prevented. In addition, since the foot plate is connected to the door knob via a linear member that releases the axial compressive force, the foot plate cannot be pushed down when the operator manually operates the rotation mechanism, and the wheels are also on the floor. Since there is no contact, it is possible to realize a configuration in which the operation of the hinged door can be performed by the foot without impairing the operability of the hinged door by the hand.

The technique disclosed in this specification can be realized in various forms different from the door opening/closing device and the hinged door. The technique disclosed in the present specification can be realized in the form of, for example, a part of a door opening/closing device, a part of a hinged door, and a method of opening/closing a hinged door.

It is explanatory drawing which shows the structure of a hinged door and a door opening/closing apparatus. It is explanatory drawing which shows the detailed structure of the door opening/closing apparatus in the state which has not pushed down the footboard. It is explanatory drawing which shows the detailed structure of the door opening/closing apparatus in the state which pushed down the footboard. It is explanatory drawing which shows the detailed structure of the door opening/closing apparatus in other embodiment.

FIG. 1 is an explanatory view showing the configurations of a hinged door 100 and a door opening/closing device 200. The hinged door 100 is a fitting that opens and closes an opening of a building. The hinged door 100 includes a plate-shaped main body 110, a hinge 120, a door knob 130, and a lock 140.

The plate-shaped main body 110 of the hinged door 100 has a plate shape and constitutes a main part of the hinged door 100. The hinges 120 of the hinged door 100 are provided above and below one side surface of the plate-shaped main body 110, respectively. The hinge 120 supports the plate-shaped main body 110 so that the plate-shaped main body 110 can be opened and closed about the rotation shaft 125. The rotation axis 125 of the hinge 120 is an axis perpendicular to the floor 180 on which the hinged door 100 is provided.

The door knob 130 of the hinged door 100 is a rotation mechanism that opens the lock 140 by rotation about a rotation shaft 135. The rotation axis 135 of the door knob 130 is an axis perpendicular to the plate-shaped main body 110, and is orthogonal to the rotation axis 125 of the hinge 120. The lock 140 of the hinged door 100 is provided in the center of the other side surface (side surface opposite to the hinge 120) of the plate-shaped main body 110. When the door knob 130 is not rotated, the lock 140 projects from the plate-shaped body 110. When the door knob 130 is rotated, the lock 140 is housed inside the plate-shaped main body 110.

The door opening/closing device 200 is a device that allows an operator to open and close the hinged door 100 by using his/her feet. In the present embodiment, the door opening/closing device 200 is configured to be retrofittable to the hinged door 100. In another embodiment, the door opening/closing device 200 may be configured to be incorporated in the hinged door 100 in advance. The door opening/closing device 200 includes a door knob attachment portion 210, a linear member 220, an up-and-down mechanism 230, a foot board 240, and a wheel portion 250.

FIG. 2 is an explanatory diagram showing a detailed configuration of the door opening/closing device 200 in a state where the footboard 240 is not pushed down. FIG. 3 is an explanatory diagram showing a detailed configuration of the door opening/closing device 200 in a state where the footboard 240 is pushed down. 2(a) and 3(a) illustrate the door opening/closing device 200 seen from the upper surface, and FIGS. 2(b) and 3(b) illustrate the door opening/closing device 200 seen from the right side. .. In this embodiment, the door opening/closing devices 200 are provided on both the front side and the back side of the hinged door 100. In the state of FIG. 2, the lock 140 of the hinged door 100 projects from the plate-shaped main body 110. In the state of FIG. 3, the lock 140 of the hinged door 100 is housed in the plate-shaped main body 110.

The door knob attachment part 210 of the door opening/closing device 200 is configured to be attachable to the door knob 130 of the hinged door 100. The doorknob mounting portion 210 has a separation portion 216 that is separated from the rotation shaft 135 of the doorknob 130. In the present embodiment, the door knob attachment portion 210 is configured to be attachable to and detachable from the door knob 130. In other embodiments, the doorknob mounting portion 210 may be configured integrally with the doorknob 130.

In the present embodiment, the doorknob attachment portion 210 has a doorknob engagement portion 212 and a tightening portion 214. The door knob engaging portion 212 engages with the outer periphery of the door knob 130. The door knob engaging portion 212 is a portion connected to the separating portion 216. The tightening portion 214 fixes the door knob engaging portion 212 to the door knob 130 by tightening the door knob engaging portion 212. In this embodiment, the doorknob mounting portion 210 is made of metal. In other embodiments, the doorknob mounting portion 210 may be a resin member or a composite member of metal and resin.

The linear member 220 of the door opening/closing device 200 connects the door knob attachment portion 210 and the footboard 240. The linear member 220 has two ends 222 and 224. One end portion 222 of the linear member 220 is connected to the separation portion 216 of the door knob attachment portion 210. The other end 224 of the linear member 220 is connected to the footboard 240 via the vertical mechanism 230.

The linear member 220 is a wire that transmits an axial tensile force and releases an axial compressive force. Therefore, when the linear member 220 receives an axial tensile force from the end portion 224, the linear member 220 transmits the axial direction tensile force to the end portion 222, but when receiving the axial compressive force from the end portion 222. The bending causes the axial compressive force to escape and does not transmit the axial compressive force to the end portion 224. In the present embodiment, the linear member 220 is a metal wire. In another embodiment, the linear member 220 may be a resin wire.

The up-and-down mechanism 230 of the door opening and closing device 200 is a mechanism that is connected to the door knob 130 via the linear member 220 and moves up and down together with the footboard 240. The up-and-down mechanism 230 pulls up the footboard 240 when the footboard 240 is not operated (FIG. 2). The up-and-down mechanism 230 moves downward together with the footboard 240 when the footboard 240 is pushed downward (FIG. 3 ).

The up-and-down mechanism 230 has a slide shaft 232, a spring 233, a housing 234, and a base 236. The slide shaft 232 is a bar member that penetrates the housing 234 and extends in the vertical direction, and moves in the vertical direction together with the footboard 240. The upper end of the slide shaft 232 is connected to the end 224 of the linear member 220. The lower end of the slide shaft 232 is fixed to the footboard 240. The spring 233 is housed inside the housing 234 and presses the slide shaft 232 upward. The housing 234 holds the slide shaft 232 and the spring 233. The base 236 holds the slide shaft 232 and the spring 233 between itself and the housing 234. The base 236 is fixed below the door knob 130 in the plate-shaped main body 110 of the hinged door 100. In the present embodiment, each component forming the up-and-down mechanism 230 is made of metal.

The footboard 240 of the door opening/closing device 200 is configured to be attached below the door knob 130 in the plate-shaped main body 110 of the hinged door 100 via the up-and-down mechanism 230. The footboard 240 is connected to the door knob attachment portion 210 via the linear member 220. The footboard 240 is configured to rotate the doorknob 130 by pulling the doorknob mounting portion 210 via the linear member 220 as the operator presses the opening/closing door 100 with the foot of the operator.

The footboard 240 is a plate-shaped member having a size that can be pushed down by the operator's foot. In the present embodiment, the footboard 240 is a metal component. The footboard 240 has an upper surface 242, a protrusion 244, an end 246, and a bottom 248. The upper surface 242 is a surface facing upward, and is a portion on which the operator's foot is put. The surface of the upper surface 242 may be provided with an uneven structure made of unevenness or a rubber sheet. The protruding portion 244 is a portion that is located closer to the end portion 246 than the upper surface 242 and that protrudes above the upper surface 242. In the present embodiment, the protruding portion 244 has a shape in which the end portion 246 side of the footboard 240 is bent upward. In other embodiments, the protrusion 244 may be a ridge or a plurality of protrusions. The end portion 246 is located on the side away from the hinged door 100 and the up-and-down mechanism 230. The bottom portion 248 is located on the back side of the upper surface 242 and faces downward.

The wheel portion 250 of the door opening/closing device 200 is a free caster provided on the bottom portion 248 of the footboard 240. The wheel portion 250 is configured to come into contact with the floor 180 as the footboard 240 is pushed down (see FIG. 3) and roll on the floor 180 as the hinged door 100 is opened and closed.

According to the embodiment described above, the wheel portion 250 that comes into contact with the floor 180 in a state where the footboard 240 is pushed down rolls on the floor 180 as the hinged door 100 opens and closes. With the door open, the hinged door 100 can be smoothly opened and closed with the foot. Further, since the wheel portion 250 supports the footstep plate 240 by the wheel portion 250 coming into contact with the floor 180 while the footstep plate 240 is pushed down, the swing door 100 and the door opening/closing device 200 are damaged due to excessive depression of the footstep plate 240. Can be prevented. Further, since the footboard 240 is connected to the door knob 130 via the linear member 220 that releases the axial compression force, the footboard 240 is not pushed down when the operator manually operates the door knob 130, and the wheel Since the part 250 also does not contact the floor 180, it is possible to realize a configuration in which the operation of the hinged door 100 can be performed by the foot without impairing the operability of the hinged door 100 by hand. In addition, since the hinged door 100 can be opened and closed without touching the door knob 130 by hand, virus infection via the door knob 130 can be prevented.

In addition, when the hinged door 100 is pulled toward the operator side with the footboard 240 pushed down, the protrusion 244 of the footboard 240 is caught on the sole of the operator. The opening and closing of 100 can be realized more smoothly.

The technology disclosed in this specification is not limited to the above-described embodiments, examples, and modified examples, and can be implemented in various configurations without departing from the spirit thereof. For example, among the technical features in the above-described embodiments, examples, and modified examples, those corresponding to the technical features in each mode described in the column of the summary of the invention solve part or all of the above problems. Therefore, or in order to achieve a part or all of the above-mentioned effects, they can be appropriately replaced and combined. In addition, technical features that are not described as essential in this specification can be deleted as appropriate.

In the above-described embodiment, the doorknob mounting portion 210 has a form applied to the round doorknob 130, but in other embodiments, the doorknob mounting portion 210 may have a form applied to a lever-type doorknob. It may be configured to be attachable to a lever portion of a lever type door knob. Further, at least one of the up-and-down mechanism 230 and the footboard 240 may be provided with a guide guide for preventing the front-back and left-right deviation when the footboard 240 moves up and down. Alternatively, the swing door without the door knob 130 may be configured by directly connecting the end portion 222 of the linear member 220 to a rotating mechanism that operates the lock 140 of the swing door. Further, the linear member 220 may be provided inside the plate-shaped main body 110 so that the linear member 220 cannot be visually recognized from the outside.

FIG. 4 is an explanatory diagram showing a detailed configuration of a door opening/closing device 201 according to another embodiment. The door opening/closing device 201 in the other embodiment is the same as the door opening/closing device 200 in the above-described embodiment except that the extension coil spring 225 is provided. The tension coil spring 225 connects the end portion 224 of the linear member 220 and the slide shaft 232 of the vertical mechanism 230. According to this embodiment, the tension coil spring 225 expands and contracts to prevent the linear member 220 from loosening. Further, by expanding and contracting the tension coil spring 225, it is possible to provide a margin at a position where the base 236 of the up-and-down mechanism 230 is attached to the plate-shaped main body 110 of the hinged door 100.

100... Swing door 110... Plate body 120... Hinge 125... Rotating shaft 130... Door knob 135... Rotating shaft 140... Lock 180... Floor 200, 201... Door opening/closing device 210... Door knob mounting part 212... Door knob engaging part 214... Tightening Part 216... Separation part 220... Linear member 222... End part 224... End part 225... Tensile coil spring 230... Vertical mechanism 232... Slide shaft 233... Spring 234... Housing 236... Base 240... Footboard 242... Top surface 244... Projection part 246... End 248... Bottom 250... Wheel

Claims (4)

A door opening and closing device for opening and closing a hinged door having a door knob for opening a lock by rotation,
A doorknob mounting portion configured to be attachable to the doorknob and having a spacing portion separated from a rotation axis of the doorknob,
A linear member that is connected to the separated portion of the door knob mounting portion, transmits an axial tensile force, and releases an axial compressive force;
It is configured so that it can be attached below the door knob in the hinged door, and is connected to the door knob attachment portion via the linear member, and the door knob attachment portion is attached via the linear member when pushed down by an operator's foot. A footboard configured to be rotatable by pulling the door knob,
A door opening/closing device, which is provided at the bottom of the footstep plate, is in contact with the floor when the footstep plate is pushed down, and is configured to be able to roll on the floor when the hinged door is opened and closed. .. The door opening/closing device according to claim 1,
The footboard is
An upper surface facing upwards,
An end on the side away from the hinged door,
A door opening/closing device that is located closer to the end portion than the upper surface and that protrudes above the upper surface. The door opening/closing device according to claim 1 or 2,
The door opening/closing device, wherein the linear member is connected to the footboard via a tension coil spring. It's a hinged door,
A rotation mechanism that unlocks by rotation,
A linear member that is connected to a separated portion apart from a rotation shaft in the rotation mechanism, transmits an axial tensile force, and releases an axial compression force;
Located below the rotating mechanism in the hinged door, connected to the rotating mechanism via the linear member, and by pulling the rotating mechanism via the linear member when the operator pushes down the rotating mechanism, A footboard configured to rotate the rotating mechanism,
A hinged door that is provided at the bottom of the footboard and that is configured to come into contact with the floor when the footboard is pushed down and to roll on the floor when the hinged door is opened and closed.

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