JP6995295B1 - Doorknob rotating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a doorknob opening / closing device having a safety device which is easy to attach / detach / operate to a door and does not easily open / close the door by a small child or the like. SOLUTION: A doorknob rotating part (1) attached to a doorknob (K), a pedal part (2) attached to the lower part of the door (D), and a string shape connecting the doorknob rotating part (1) and the pedal part (2). It is composed of a connecting member (3) and a hooking portion (4) for hooking the connecting member (3), and the pedal portion (2) is a support portion (20) and an elastic body (23) that support a load during operation. ) Consists of a slide portion (5) to which the movable plate (22), which is maintained in a state of being separated from the support portion (20) in a natural state, and the lower end of the connecting member (3) are connected, and the slide portion (5) is used as a foot. The doorknob (k) is rotated by the connecting member (3) being stretched by the hooking portion (4) when sliding in the left-right direction. [Selection diagram] Fig. 1

Description

Regarding door opening and closing aids. In particular, it relates to a device that can open and close a door by rotating a door knob without using a hand.

With the spread of the new coronavirus infection, prevention of infectious diseases at home is required, and one of the measures to prevent infection through the doorknob is to open the door with your feet without using your hands.

There are existing products that open and close the door by operating it with your feet, but many of them need to be fixed to the door or floor, and there is a problem that it is difficult to use in rental housing.
Patent Document 1 discloses a foot-operated doorknob device that is not fixed to a door. However, since the doorknob is in the form of a foot pedal suspended from the door knob and the door knob is rotated by depressing the foot pedal, a small child There is a possibility that the door will open by mistake when someone gets on the foot pedal or hangs.
Further, Patent Document 2 discloses a foot-operated doorknob opening / closing device. This reference is configured so that the wheel portion lowers and touches the floor when the opening operation is performed. However, the present invention has a configuration in which the force is transmitted to the C-shaped component by sliding the sliding plate on the pedal diagonally upward and then stepping on it, and the configuration is significantly different from this reference.

Registered Utility Model No. 3007738 Patent No. 6722968

Therefore, an object of the present invention is to provide a doorknob opening / closing device that is easy to attach / detach to / from a door and is easy to operate, and has a safety device that does not easily open / close the door by a small child or the like.

The doorknob rotating device of the present invention has a doorknob rotating portion attached to the doorknob, a pedal portion attached to the lower part of the door, a string-shaped connecting member connecting the doorknob rotating portion and the pedal portion, and between the doorknob rotating portion and the pedal portion. It is composed of a hooking part that is provided and hooks the connecting member, and the pedal part is a support part that supports the load at the time of operation, a movable plate provided on the upper side of the support part, and a connecting member that is attached to the movable plate ( It consists of a slide part (5) to which the lower end of 3) is connected, and the movable plate is naturally maintained in a state separated from the support part by an elastic body provided between the support part and overlaps with the support part by a load. The hooking portion is characterized in that it is provided at a position where the connecting member is caught and the connecting member is in a stretched state when the sliding portion is slid in the left-right direction.

According to this, when the slide portion is slid in the left-right direction with one foot and then the movable plate is stepped downward, the string-shaped connecting member connected to the doorknob is pulled downward through the hook portion. At this time, since the connecting member pulls the doorknob rotating portion and the doorknob is rotated, the door can be opened and closed without using a hand.

Even if you step down on the movable plate of the slide part with your foot, the connecting member is not pulled sufficiently and the doorknob rotating part does not rotate, so even if a small child gets on the pedal part, the door will not open or close. .. The two-step operation of sliding the slide part and stepping on the movable plate functions as a safety device.

In the case where the support plate and the movable plate (22), which are almost parallel to the floor surface of the support portion constituting the pedal portion, are naturally separated from each other at the other end, the shape is ">" or "<". Since it is possible to step on the movable plate while sliding the slide portion, it is possible to perform the two-step operation required for the rotation of the doorknob with an operation feeling close to one step.

Furthermore, when the foot is released, the movable plate returns to the shape of ">" or "<" due to the return force of the spring, and the slide part slides down the movable plate due to its own weight. No need to bring it back.

If the slide plate of the slide portion is provided with a locking tool for locking the foot during operation, the slide portion can be reliably moved. When an auxiliary member, for example, a caster is provided on the bottom of the support plate as an auxiliary member of the support portion, the door can be smoothly opened and closed by the foot.

If the shape of the doorknob rotating portion is C-shaped, it can be attached to doorknobs having various shapes such as a lever type and a decorated doorknob.

According to the doorknob rotating device of the present invention, it is lighter than the conventional invention and can be easily attached to the door. In addition, since the two-step operation of stepping on the pedal after sliding the slide functions as a safety device, the doorknob rotating part does not rotate even if a small child or pet gets on the pedal part, so the door may open carelessly. It is safe because there is no such thing.

It is explanatory drawing which shows the attachment state of the door knob rotation apparatus of this invention, (a) is the explanatory view which shows the unoperated natural state, (b) is the explanatory view which shows the operation time of a pedal part. It is a side view of FIG. 1 (a). It is a figure which shows the doorknob rotating part (a) is the perspective view of the doorknob rotating part (b) is the side view which shows the mounting state of the doorknob rotating part. It is a top view which shows the pedal part and the slide part. It is explanatory drawing which shows the other doorknob rotating apparatus (a) is explanatory drawing which shows the unoperated natural state, (b) is the explanatory drawing which shows the operation time of a pedal part. It is explanatory drawing which shows the example 1 of the other doorknob rotating part (a) is the plan view which shows the other doorknob rotating part, (b) is the side view which shows the other doorknob rotating part. It is explanatory drawing which shows the example 1 of the other doorknob rotating part.

Hereinafter, examples of the doorknob rotating device of the present invention will be shown. The doorknob rotating device (A) of the present invention includes a doorknob rotating portion (1) attached to the doorknob (K), a pedal portion (2) operated by a foot, a string-shaped connecting member (3), and a connecting member during operation. It is composed of a hooking part (4) on which (3) is hooked.

<Doorknob rotating part (1)>
As shown in FIGS. 1, 2, and 3, the doorknob rotating portion (1) has a C-shaped main body (10) attached to a neck portion (N) that rotates together with the doorknob (K), and a main body (10). It consists of a holding part (11) that can be closely attached to the doorknob attached to the inside of the main body, and mounting holes (12) for connecting a thin string-shaped (thread-shaped) connecting member (3) are provided at both ends (13) on the outside of the main body. ing.

The holding portion (11) of this embodiment is an elastic C-shaped tube that can be inflated by injecting air from an injection port (not shown) and can be brought into close contact with the doorknob (K). Since the holding portion (11) can be deformed according to the shape of the doorknob (K), it can be closely attached to doorknobs (K) of various sizes and shapes.

The doorknob rotating portion (1) of this embodiment is provided with a holding portion (11) on the inner surface of the main body (10), but the main body (10) and the holding portion (11) are separate members, and the neck portion is first. After the holding portion (11) is attached to (N), the main body (10) may be attached to the outside of the holding portion (11).

Further, although the main body (10) is formed in a C shape, the holding portion (11) is rotated from half a circumference to the entire circumference of the door knob (K) or the neck portion (N), and the holding portion (11) is formed by the door knob (K) or the neck portion (K). The shape may be annular or polygonal as long as it can be brought into close contact with N). Further, the holding portion (11) may be not only one that is brought into close contact with the doorknob (K) by injecting air, but also one that is brought into close contact with the doorknob (K) due to the shape or deformation of the holding portion (11).

<Pedal section (2)>
As shown in FIGS. 1 and 2, the pedal portion (2) has a support portion (20) having a support plate (21) installed so as to be substantially parallel to the floor surface, and an upper side of the support plate (21). It is composed of a movable plate (22) connected to the door (22), and the support plate (21) is attached to the lower end of the door (D) so as to be sandwiched by an L-shaped locking tool (25).
The support plate (21) and the movable plate (22) are connected by a hinge (26) at one end, and the support plate (21) and the movable plate (22) are connected to each other by a hinge (26). A coiled spring (23) is provided so as to be separated from the <"shape.

The support plate (21) is equipped with two auxiliary members, for example, casters (24), which are in contact with the floor at the bottom, and can support the load applied when the movable plate (22) is stepped on. Since it is not necessary to firmly fix the whole (A) to the door (D) with screws or the like, it can be easily installed. In addition, the door (D) can be opened and closed smoothly by pushing / pulling with the foot after rotating the door knob (K).

<Slide part (5)>
As shown in FIG. 4, the slide portion (5) is composed of a slide plate (50) and a guide member (51) attached to the upper surface of the movable plate (22) to guide the movement of the slide plate (50). Has been done. The guide member (51) is two metal rods arranged along the long side on the upper surface of the movable plate (22) and penetrates the slide plate (50).

As shown in FIG. 4, the slide plate (50) is set to about the width of the foot, and the locking plate (52) can be slid by pressing the side surface of the foot against the end in the slide direction. Is provided. A metal mounting ring (53) that connects the lower ends of the string-shaped connecting member (3) is provided at the opposite end. A plurality of protrusions (54) are formed on the surface of the slide plate (50) to prevent slipping.

In this embodiment, the connecting member (3) is connected to the end of the slide plate (50) on the opposite side in the sliding direction, but the connecting position of the connecting member (3) is not limited to this, and the slide. It may be coupled to any position on the directional end or the slide plate (50). Further, the slide plate (50) may be slid by hooking a foot on the connecting member (3) coupled to the slide plate (50).

<Connecting member (3)>
The connecting member (3) is a single thread-like string made of synthetic resin, and the upper end is provided in the mounting hole (12) provided at the end (13) of the main body (10) of the doorknob rotating portion (1). The lower end is connected to the mounting ring (53) provided on the slide plate (50). The connecting member (3) is adjusted to a length that is loosely stretched in a natural state without operation.
The connecting member (3) may be in the shape of a belt or in the form of a metal chain. Further, the doorknob rotating portion (1) and the slide plate (50) may be connected by a plurality of connecting members (3). However, it is necessary to make it less elastic.

<Hook part (4)>
The hook portion (4) is between the door knob (K) and the lower end of the door (D), and is a connecting member (3) that naturally connects the door knob rotating portion (1) and the slide plate (50). It is installed on the pedal part (2) side, and is attached to the door (D) with tape or the like at a position where it lightly touches or does not touch the connecting member (3). The presence of the hook (4) allows the doorknob (K) to rotate until the door (D) can be opened when the slide plate (50) is moved and stepped on.

In this embodiment, as shown in FIG. 4, a pulley is used as the hooking portion (4), and a cover (41) for preventing the connecting member (3) from falling off is formed on the outer periphery thereof. The cover (41) can hold the connecting member (3) even if the connecting member (3) may sag during the sliding of the slide plate (50). If the hook portion (4) is arranged so as to be located at the apex of the isosceles triangle with respect to the diagonal bottom dead center and the diagonal top dead center of the slide plate (50), the slide plate (50) is diagonally below. Even if it slides from the dead center to the diagonal top dead center, the distance between the slide plate (50) and the doorknob rotating part (1) is the same, and the connecting member (3) can maintain the same degree of tension. Is.
Further, the hook portion (4) may have a hardness and a shape that can serve as a fulcrum of the connecting member (3), and may be a rod-shaped protrusion, a hook, or a ring shape through which the connecting member (3) is passed.

Next, an operation when opening and closing the door (D) using the door knob rotating device (A) of this embodiment will be described.
First, place the tip of one foot on the slide plate (50) of the slide part (5), adjust the position so that the side surface of the foot touches the locking tool (52), and then move the foot to move the slide plate (50). ) Along the guide member (51), as shown in FIG. 1 (a), by first sliding the movable plate (22) in the X direction and then stepping on the slide plate (50) in the Y direction. As shown in FIG. 1 (b), the movable plate (22) and the support plate (21) are in an overlapping state. That is, as shown in the figure, after performing the first operation of sliding the slide plate (50) from the diagonal bottom dead center to the diagonal top dead center along the guide member (51) with a foot, the diagonal top dead center is performed. The doorknob rotating portion (1) is rotated by performing the second operation of stepping the movable plate (22) urged upward by the elastic body (23) downward. On the other hand, as shown in FIG. 1 (a), even if the slide plate (50) is tilted to the diagonal bottom dead center and is stationary, even if the slide plate (50) is stepped downward, the doorknob rotating portion (1) ) Does not rotate. The configuration in which the first operation and the second operation are performed in this way functions as a safety device in which a small child or the like cannot easily open the door.

That is, when the slide plate (50) is located at the diagonal top dead point as shown in FIG. 1 (b), the connecting member (3) connected to the slide plate (50) is pulled downward (in the direction of the arrow). The doorknob rotating part (1) is pulled downward according to the moving distance of the slide plate (50), and the doorknob rotating part (1) is pulled in a taut state with the sliding wheel as the hooking part (4) as a fulcrum. The doorknob (K) held in) rotates counterclockwise. The hook portion (4) is arranged so as to be located at the apex of the isosceles triangle with respect to the diagonal bottom dead center and the diagonal top dead center of the slide plate (50). Therefore, it is possible to maintain the connecting member (3) in a taut state with the hooking portion (4) as a fulcrum at both the diagonal bottom dead center and the diagonal top dead center. In addition, the doorknob (K) is rotated and the slide plate (50) is rotated so that the connecting member (3) does not loosen unnecessarily when the slide plate (50) is slid from the diagonal bottom dead center to the diagonal top dead center. The tension of the connecting member (3) may be maintained by a weak spring (not shown) that does not affect the sliding movement.

When the doorknob (K) is rotated and the door (D) can be opened, the door (D) can be opened by gently moving the foot forward or backward with the foot resting on the slide plate (50). ) Can be opened.

After opening the door (D), when you take your foot off the slide plate (50), the movable plate (22) returns to its original "<" shape due to the elastic force of the spring, and the slide plate (50) is a movable plate due to its own weight. (22) slides down along the guide member (51), and the lower end of the connecting member (3) returns to the position of the hinge (26). In this state, the connecting member (3) is not pulled even if the movable plate (22) is stepped on, and the doorknob (K) does not rotate even if a small child or pet gets on the pedal part (2). It's safe.

The present invention is not limited to the above embodiment, and the shape of the doorknob rotating portion (1) can be changed according to the shape of the doorknob.
FIG. 5 shows a second embodiment in which the doorknob rotating device (A) is attached to the lever-type doorknob. In this example, in the pedal portion (2), the support plate (21) and the movable plate (22) are connected so as to form a “>” in the natural state, and the slide plate (50) is connected in the slide direction. The lower end of the connecting member (3) is connected to the locking plate (52).

As a result, when the slide plate (50) is slid in the X direction and then stepped in the Y direction, the connecting member (3) is pulled via the hook portion (4), and the doorknob rotating portion (1) rotates to the left. , The door can be opened and closed.
In this embodiment, a D-shaped ring through which the connecting member (3) is passed is used as the hooking portion (4).

In this example, since the connecting member (3) is connected to the end of the slide plate (55) in the sliding direction, the connecting member (3) is slightly pulled when the movable plate (22) is stepped on in the natural state. The loosely stretched connecting member (3) stays in motion so that it is caught by the hook (4), and the doorknob (K) does not rotate.

FIG. 6 shows a second embodiment of the doorknob rotating portion (1). In this example, a main body (10) consisting of two semi-circular members joined by a hinge member (14) that can be opened and closed, a deformable holding portion (11) attached to the inside of the main body (10), and a doorknob. It is composed of a connecting piece (15) and a connecting convex portion (16) for making the ring closed when attached to (K). A mounting hole (12) for connecting the connecting member (3) is formed in the connecting convex portion (16).

The main body (10) can be attached to the doorknob (K) by penetrating the coupling convex portion (16) through the hole portion (17) formed in the coupling piece (15). The holding portion (11) is deformed according to the shape of the door knob (K) and becomes in close contact with the door knob (K). At this time, if there is a surplus in the holding portion (11), it will be in a state of protruding to the outside of the main body (10) as shown in FIG. 6 (b).

FIG. 7 shows a third embodiment of the doorknob rotating portion (1). In this example, it is composed of a belt-shaped main body (10) and a deformable holding portion (11) superimposed on a part of the main body (10). According to this, the holding portion (11) can be pressed against the doorknob (K) and wound around the doorknob (K) to be brought into close contact with the doorknob (K). The main body (10) is provided with a fastener (not shown) for holding the wound state and a mounting hole (12) for mounting the connecting member (3).

(A) Doorknob rotating device
(D) Door
(K) Doorknob
(1) Doorknob rotating part
(10) Main body
(11) Holding part
(12) Mounting hole
(2) Pedal section
(20) Support
(21) Support plate
(22) Movable plate
(23) Elastic body (spring)
(24) Auxiliary member (caster)
(3) Connection member
(4) Hook part (pulley)
(5) Slide part
(50) Slide board
(51) Guide member
(52) Locking plate

Claims (6)

A string-shaped connecting member that connects the doorknob rotating part (1) attached to the doorknob (K), the pedal part (2) attached to the lower part of the door (D), and the doorknob rotating part (1) and the pedal part (2). It is composed of 3) and a hooking part (4) that is provided between the doorknob rotating part (1) and the pedal part (2) and hooks the connecting member (3).
The pedal portion (2) has a support portion (20) that supports the load during operation, a movable plate (22) provided above the support portion (20), and a connecting member (3) that is attached to the movable plate (22). It consists of a slide part (5) to which the lower ends of the
The movable plate (22) is naturally maintained in a state of being separated from the support portion (20) by an elastic body (23) provided between the movable plate (22) and the support portion (20) so as to overlap the support portion (20) by a load. Is installed in
The hook portion (4) is provided at a position where the connecting member (3) is caught and the connecting member (3) is in a stretched state when the slide portion (5) is slid in the left-right direction, whereby the slide portion (5) is provided. In a two-step operation of sliding the doorknob (22) and then stepping on the movable plate (22), the connecting member (3) pulls the doorknob rotating part (1) to rotate the doorknob without using hands. A doorknob rotating device (A) characterized by being able to open and close the door . The support portion (20) is composed of a support plate (21) substantially parallel to the floor surface and an auxiliary member (24) that supports the load applied to the support plate (21).
The movable plate (22) is maintained in a "<" or ">" shape in which one end in the left-right direction is rotatably connected to the support plate (21) and the other end is naturally separated from each other. The doorknob rotating device (A) according to claim 1. The slide portion (5) is composed of a slide plate (50) to which the lower end of the connecting member (3) is attached and a guide member (51) that guides the movement of the slide plate (50) in the left-right direction. The doorknob rotating device (A) according to any one of claims 1 to 2, wherein the 50) is provided with a locking plate (52) for locking the foot during operation. The doorknob rotating device (A) according to any one of claims 1 to 3, wherein the auxiliary member (24) is a caster provided at the bottom of the support plate (21) to assist the opening / closing operation of the door. ). The doorknob rotating device (A) according to any one of claims 1 to 4, wherein the doorknob rotating portion (1) is formed in an annular shape or a C shape. A string-shaped connecting member (1) that connects the doorknob rotating part (1) attached to the doorknob (K), the pedal part (2) attached to the lower part of the door (D), and the doorknob rotating part (1) and the pedal part (2). In the doorknob rotating device composed of 3) and a hooking portion (4) for hooking the connecting member (3).
The pedal portion (2) has a support portion (20) that supports a load during operation, and one end of the support portion (20) is rotatable upward on the shaft support and the other end is obliquely upward due to an elastic body (23). It has a urged movable plate (22), and further has a slide portion (5) on the movable plate (22), and a guide member (5) fixed in the longitudinal direction on the slide portion (5). It has a slide plate (50) that can slide along 51), and has a configuration in which a connecting member (3) is connected to one end of the slide plate (50).
The hook portion (4) is arranged so as to be located at the apex of the isosceles triangle with respect to the diagonal bottom dead center and the diagonal top dead center of the slide plate (50).
After performing the first operation of sliding the slide plate (50) from the diagonal bottom dead center to the diagonal top dead center with a foot along the guide member (51), the slide plate (50) is moved at the diagonal top dead center. By performing the second operation of stepping downward and pulling the connecting member (3) connected to the slide plate (50) downward, the doorknob rotating portion (1) to which the connecting member (3) is connected is rotated. The door (D) is configured to open,
On the other hand, when the slide plate (50) is slanted to the diagonal bottom dead center and is stationary, the doorknob rotating portion (1) is configured not to rotate even if the slide plate (50) is stepped downward. Doorknob rotation device (A) featuring.

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