JP6823887B1 - Handle aids and handles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handle assisting tool and a handle which can be operated only by an arm without using a hand. SOLUTION: This is a handle assisting tool attached to a handle of a door, and has a curved arm hanging portion for hanging an arm to operate the handle, and an attaching portion connected to a base end side of the arm hanging portion. The arm hook portion is a handle assisting tool having an insertion portion for inserting an arm. [Selection diagram] Fig. 1

Description

The present invention relates to a handle assisting tool and a handle.

Conventionally, there are auxiliary tools attached to handles such as doorknobs. For example, in order to make it easier to turn the door opening / closing knob, an annular one having a plurality of protrusions on which a finger is hung is attached to the door opening / closing knob integrally molded using a material such as rubber or elastic synthetic resin. Auxiliary tools have been proposed (see claim 1 of Patent Document 1).

Utility Model Registration No. 3055629

Since many people hold and operate doorknobs, pathogens may adhere to the surface and cause contact infection through their hands. In addition, there are some people who cannot move their hands freely and it is difficult to operate the doorknob by hand.

The auxiliary tool described in Patent Document 1 is integrally molded using a material such as rubber or a synthetic resin having elasticity in that the opening / closing knob can be turned without slipping by a plurality of protrusions on which a finger is hung. This is excellent in that it can prevent frostbite in cold regions and electric shock in dry regions due to grasping with bare hands, but the user must hang his fingers on this auxiliary tool to operate it, which solves the above problem. Can't be done.

The present invention is intended to solve at least one of the above problems, and an object of the present invention is to provide a handle assisting tool and a handle that can be operated only by an arm without using a hand.

In order to solve at least one of the above-mentioned problems, the handle assisting tool according to one side of the present invention is a handle assisting tool attached to the handle of the door, and has a curved shape for operating the handle by hanging an arm. It has an arm hook portion and a mounting portion that connects to the base end side of the arm hook portion, and the arm hook portion has an insertion portion for inserting an arm.

Further, it may have a guide portion that is connected to the end side of the arm hook portion to facilitate insertion of the arm.

Further, the arm rest portion may have a semicircular portion.

Further, the arm rest portion may be inclined forward and downward.

Further, the arm hanging portion may have an angle of 60 degrees or more and 90 degrees or less in the clockwise direction with respect to the horizon.

Further, the mounting portion may have a first mounting portion and a second mounting portion having a substantially semi-cylindrical shape, and the first mounting portion may be formed integrally with the arm hook portion.

Further, the first mounting portion and the second mounting portion may be provided with a locking portion protruding inward in the radial direction from the inner peripheral surface at the front end.

Further, the first mounting portion and the second mounting portion may have a portion in which the inner peripheral surface is gradually reduced in diameter toward the rear and formed in a substantially tapered cross-sectional view.

Further, the mounting portion may have a front plate portion extending in the left-right direction and a side plate portion extending in the front-rear direction, and may have a substantially L-shape in a plan view.

Further, the arm rest portion may be configured to be openable and closable.

In order to solve at least one of the above-mentioned problems, the handle assisting tool set according to one surface of the present invention is a handle assisting tool set attached to a pair of handles of the door, and is any of the above-mentioned handle assisting tools. The second handle assisting tool includes a first handle assisting tool attached to the handle on the pulling side and a second handle assisting tool which is any of the above handle assisting tools and is attached to the handle on the pushing opening side. The width in the left-right direction is larger than that of the first handle aid.

In order to solve at least one of the above-mentioned problems, the handle according to one surface of the present invention is a door handle, which is a curved arm hook portion for hanging an arm and a base end side of the arm hook portion. The arm hook portion has an insertion portion for inserting an arm.

Further, it may have a guide portion that is connected to the end side of the arm hook portion to facilitate insertion of the arm.

Further, the arm rest portion may have a semicircular portion.

Further, the arm rest portion may be inclined forward and downward.

Further, the arm hanging portion may have an angle of 60 degrees or more and 90 degrees or less in the clockwise direction with respect to the horizon.

Further, the arm rest portion may be configured to be openable and closable.

In order to solve at least one of the above-mentioned problems, the handle set according to one surface of the present invention includes a first handle which is any of the above handles and is attached to the opening side, and any of the above-mentioned handles which is pushed. The second handle includes a second handle attached to the opening side, and the width of the second handle is larger in the left-right direction than that of the first handle.

According to the present invention, it is possible to provide a handle assisting tool and a handle that can be operated only by an arm without using a hand.

Issues, configurations and effects other than those described above will be clarified by the following description of the embodiments.

It is a top view which shows an example of the attachment state to the door of the handle assisting tool which concerns on 1st Embodiment. It is a perspective view which shows the handle assisting tool of FIG. It is (a) front view, (b) side view, (c) end view which shows the handle assisting tool of FIG. It is a figure which shows the example of the attachment state when the handle auxiliary tool of FIG. 1 is attached to a handle. It is a figure which shows the use state of the handle assisting tool of FIG. It is a figure which shows the use state of the handle assisting tool of FIG. It is a perspective view which shows another example of the handle assisting tool which concerns on 1st Embodiment. It is a perspective view which shows another example of the handle assisting tool which concerns on 1st Embodiment. It is a figure which shows the handle assisting tool of FIG. It is a figure which shows the use state of the handle assisting tool of FIG. It is a top view which shows an example of the attachment state to the door of the handle assisting tool which concerns on 2nd Embodiment. 11 is a plan view, a front view, and a side view showing the first handle assisting tool of FIG. 11. It is a figure which shows an example of the holding plate of FIG. It is a figure which shows the use state of the 1st handle assisting tool of FIG. It is a figure which shows the use state of the 2nd handle assisting tool of FIG. 11 is a plan view, a front view, and a side view showing the second handle assisting tool of FIG. 11. It is sectional drawing which shows an example of the attachment part of FIG. It is a figure which shows the attachment state when the handle auxiliary tool which concerns on 2nd Embodiment is attached to a handle. It is a figure which shows the attachment state when the handle auxiliary tool which concerns on 2nd Embodiment is attached to a handle. It is a figure which shows the attachment state when the handle auxiliary tool which concerns on 2nd Embodiment is attached to a handle. It is a figure which shows the attachment state when the handle auxiliary tool which concerns on 2nd Embodiment is attached to a handle. It is a figure which shows the attachment state when the handle auxiliary tool which concerns on 2nd Embodiment is attached to a handle. It is a figure which shows the attachment state when the handle auxiliary tool which concerns on 2nd Embodiment is attached to a handle. It is a perspective view which shows another example of the handle assisting tool which concerns on 2nd Embodiment. It is a figure which shows the use state of the handle assisting tool of FIG. It is a front view which shows the other example of the handle assisting tool which concerns on 2nd Embodiment. It is a drawing plane which shows an example of the attachment state to the door of the handle which concerns on 3rd Embodiment. It is (a) plan view, (b) front view, (c) side view which shows the 1st handle of FIG. It is (a) plan view, (b) front view, (c) side view which shows the other example of the 2nd handle which concerns on 3rd Embodiment. It is a figure which shows another example of the 2nd handle which concerns on 3rd Embodiment.

An example of the embodiment of the present invention will be described below with reference to the drawings. The components common to the following embodiments may be designated by the same reference numerals as those mentioned above and the description thereof may be omitted. In addition, when referring to the shape, positional relationship, etc. of components, etc., those that are substantially similar to or similar to the shape, etc., unless otherwise specified or when it is considered that this is not the case in principle. Shall include.

<First Embodiment>
FIG. 1 is a plan view showing an example of a state in which the handle assisting tool according to the first embodiment is attached to the door. FIG. 2 is a perspective view showing the handle assisting tool of FIG. 1, which is a view observed from the front upper side on the right side. FIG. 3 is a front view (a), a side view (b), and an end view (c) showing the handle assisting tool of FIG. In FIG. 1, X indicates a left-right direction (horizontal direction), Y indicates a vertical direction (vertical direction), and Z indicates a front-back direction (observer location direction is forward, opposite direction is rear) (depth direction). Shown (the same applies to each figure below).

In the present application, the door handle refers to a handle for opening and closing the door, and has a rounded outer shape such as a round door knob (knob type handle, grip ball type handle), lever handle (lever type handle), and U-shaped door. Includes handles (U-shaped handles), etc. The handle assist tool according to this embodiment is suitable for a knob type handle.

As shown, the door L is usually provided with a handle device M. The handle device M includes a pair of handles Ma and handles Mb (handle sets) attached to the pull-open side and the push-open side of the door, a pair of mounting seats for attaching these handles to the door, a latch, and the like. .. The door L is attached to the door frame by the hinge L1, and the handle Ma and the handle Mb are attached to the door L at a position close to the partition (or door frame) L2, that is, near the door stop end, and the door can be opened and closed. It has become like.

The handle assisting tool set 1 includes a pair of handle assisting tools, a first handle assisting tool attached to the handle Ma on the pull-open side and a second handle assisting tool attached to the handle Mb on the push-opening side. The handle assisting tool may be attached to only one of the handle Ma on the pull-open side or the handle Mb on the push-open side. Here, as an example, the first handle assisting tool and the second handle assisting tool are similarly configured. In the following, the opening side will be described as an example.

The handle assisting tool 10 has a curved arm hanging portion 2 for hanging an arm and operating the handle, and a mounting portion 3 for connecting to the base end side of the arm hanging portion 2. The handle assisting tool 10 is attached to the handle via the attachment portion 3. The arm hook 2 has an insertion portion A for inserting an arm, and when opening and closing the door, the user's arm reaches the arm hook 2 through the insertion portion A and hangs on the arm hook 2. And you will be able to operate the handle.

The operation of the handle by the arm hook 2 is only to rotate, pull or push with the arm, as shown in FIGS. 5 and 6 described later. Therefore, according to the handle assisting tool 1, the handle can be operated only by the arm without using a hand, and indirect contact infection can be prevented by a large number of people holding and operating the same handle. In addition, static electricity generated when the hand touches the metal handle can be prevented. In addition, it becomes easy to operate the handle of a person who cannot move his / her hand freely or a person who has weak power.

Hereinafter, the handle assisting tool 10 will be described in detail. As described above, the handle assisting tool 10 has an arm hook portion 2 and a mounting portion 3 that connects to the base end side of the arm hook portion 2, and preferably further connects to the end side of the arm hook portion 2. The guide portion 4 is provided.

The arm-hanging portion 2 has a frame shape in which three sides are surrounded and one side is open. The arm-hanging portion 2 is formed by the three-sided enclosure, and the insertion portion A is formed by one open opening. The arm rest 2 has a substantially U-shaped or C-shaped plan view. The arm rest 2 may be formed of resin or the like, or may be formed of metal. The arm hook portion 2 may be formed by winding, covering, or fitting a soft material having a cushioning property such as rubber or sponge around a hard core material such as metal or resin. The arm rest 2 may be formed by coating or coating a hard core material with a soft material softer than the hard core material.

The arm hook 2 is arranged on the right side of the handle, and the insertion portion faces to the left. Since the knob type handle is normally opened by rotating clockwise (clockwise), arranging the arm hook 2 on the right side of the handle facilitates the operation of rotating the door knob clockwise.

The arm rest 2 is arranged in the left-right direction, and the front and rear enclosure portions extend in the left-right direction, and the side enclosure portions extend in the front-rear direction. The surface formed by these enclosures may be a substantially horizontal plane, but is preferably an inclined surface that inclines forward and downward as shown in the figure. In other words, the handle assisting tool 10 is inclined so that the arm rest 2 is twisted forward and downward. Since the user stands in front of the door for operation, the arm rest 2 is tilted forward and downward with respect to the mounting surface, and the front side is lower than the rear side so that the user's arm can be inserted and rotated. Make it easier.

The arm hooking portion 2 faces the insertion portion, has a main body portion 21 which is a portion on which the arm is hung, a base end portion 22 which connects to the mounting portion 3, and an end portion 23 which is an opposite end portion of the base end portion 22. And have.

The main body 21 has a curved shape, preferably an arc shape of 1/3 or more of the circumference in a plan view (an arc shape having a central angle of 120 ° or more), and more preferably a central angle of 190 ° or more. The main body 21 has, for example, a semicircular shape. The diameter of the inner circumference of the semicircular shape of the main body 21 is about 60 mm to 120 mm, preferably 70 mm to 100 mm, for example, 85 mm. The cross section of the main body 21 has a rounded shape such as a circle or an ellipse. As an example, it is circular and has a diameter of about 12 mm to 40 mm, preferably 15 mm to 35 mm, for example, 20 mm. By making it arcuate in this way and adapting it to the outer shape of the arm, it makes contact with the arm gently and makes the operation smooth.

The base end portion 22 is a portion that supports the arm rest portion. The base end portion 22 may have an arc shape on the circumference common to the arc shape of the main body portion 21, an arc shape having a radius of curvature different from the arc shape of the main body portion 21, or a substantially linear shape. The base end portion 22 may be formed slightly thicker than the main body portion 21, or may be gradually formed thicker than the main body portion 21.

The end portion 23 may have an arc shape on the circumference common to the arc shape of the main body portion 21, an arc shape having a radius of curvature different from the arc shape of the main body portion 21, or a substantially linear shape. The end portion 23 may be formed slightly thicker than the main body portion 21, or may be gradually formed thicker than the main body portion 21.

The guide portion 4 is a portion that facilitates insertion of the arm into the arm hanging portion 2, and is a portion that leads to the insertion portion or the arm hanging portion. The guide portion 4 is connected to the end portion 23 of the arm hook portion 2 and is inclined forward and downward at the same angle as the arm hook portion 2. The guide portion 4 has a shape that warps to the opposite side of the insertion portion in a plan view, and has a shape that curves to the opposite side of the arm rest portion 2. The guide portion 4 is formed in an arc shape having a radius of curvature larger than that of the main body portion 21 of the arm hook portion 2. As an example, the cross section of the guide portion 4 is formed in a circular shape like the arm rest portion 2. Further, the guide portion 4 may be formed to be slightly thicker than the arm rest portion 2, or may be gradually formed to be thicker.

The attachment portion 3 is a portion for attaching the arm hook portion 2 to the handle, and is composed of a first attachment portion 31 and a second attachment portion 32 formed separately. The first mounting portion 31 and the second mounting portion 32 have a substantially semicircular shape when viewed from the front, and both are combined to form a substantially circular shape. The arm hook portion 2 is connected to a substantially intermediate position on the outer peripheral surface of the first mounting portion 31. The first mounting portion 31 and the second mounting portion 32 are each provided with two pairs of tightening portions 301 protruding outward in the radial direction. The tightening portion 301 is provided with a screw hole, and a fastening member such as a screw (not shown) is screwed into the tightening portion 301. The handle auxiliary tool 10 is formed by dividing the mounting portion 3 into two parts, a first mounting portion 31 and a second mounting portion 32, and is mounted on the handle so as to be sandwiched from both sides. Therefore, the outer shape and size of the handle vary. Easy to handle.

The first mounting portion 31 and the second mounting portion 32 have a substantially semi-cylindrical shape and are configured to be symmetrical in the left-right line. The first mounting portion 31 may be an independent member like the second mounting portion 32, but is preferably formed integrally with the arm rest portion 2 as shown in the drawing. Hereinafter, the first mounting portion 31 will be described as an example.

The first mounting portion 31 has a pair of slits 302 extending in the circumferential direction. The pair of slits 302 are provided symmetrically and reach the inner peripheral surface from the outer peripheral surface of the first mounting portion 31 through the wall thickness. The first mounting portion 31 is divided into a first contact portion 311 that contacts the front portion of the grip portion of the handle and a second contact portion 312 that contacts the rear portion of the grip portion of the handle with the slit 302 as a boundary. .. In this way, the mounting portion is further divided into a first contact portion 311 and a second contact portion 312 to come into contact with the grip portion of the handle, so that the mounting portion can be more easily adapted to the shape of the handle.

As shown in FIG. 3C, the front ends of the first contact portion 311 of the first mounting portion 31 and the first contact portion 321 of the second mounting portion 32 protrude inward in the radial direction from the inner peripheral surface. A locking portion 303 is provided. As shown, the locking portion 303 is formed in the shape of a claw in cross section. The locking portion 303 may be provided in a semicircular ring shape over the entire circumference of the first contact portion, or may be provided at several locations separately. By providing the locking portion 303, it is possible to suppress the backward movement of the handle assisting tool 10.

The inner peripheral width (diameter) of the front end of the second contact portion 312 of the first mounting portion 31 and the second contact portion 322 of the second mounting portion 32 is substantially the same as that of the first contact portion, and the inside of the rear end. The peripheral width (diameter) is smaller than this, the inner peripheral surface 304 is gradually reduced in diameter toward the rear, and the cross-sectional view is substantially tapered. Only the inner peripheral surface of the second contact portions 312 and 322 may be formed in a tapered shape, but preferably, the entire surface including the outer peripheral surface is formed in a tapered shape in cross section. By forming the second contact portions 312 and 322 in this way, it is possible to suppress the forward movement of the handle assisting tool 10. As an example, the radial difference between the inner peripheral surface of the front end and the inner peripheral surface of the rear end of the second contact portion is substantially the same as the protruding height of the locking portion 303.

The total depth D of the mounting portion 3 is about 30.0 mm to 50.0 mm, preferably 35.0 mm to 45.0 mm, for example, 38.0 mm. The wall thickness E is about 5.0 mm to 16.0 mm, preferably 6.0 mm to 14.0 mm, for example 8.0 mm. The protruding height F of the locking portion is, for example, 2.0 mm. The wall thickness G of the locking portion is about 1.0 mm to 6.0 mm, preferably 1.5 mm to 4.0 mm, for example 2.0 mm.

FIG. 4 is a diagram showing an example of an attached state when the handle assisting tool 10 of FIG. 1 is attached to the handle. Even with a knob-shaped handle, the shape and size of the grip portion differ depending on the manufacturer. As shown in the figure, the handle assisting tool 10 can be applied to various handles having variations in shape and size.

FIG. 4A is a diagram showing an example in which a handle assisting tool is attached to a knob-shaped handle having a substantially trapezoidal cross-sectional shape of the grip portion, a diameter of the front end larger than that of the rear end, and a small difference in diameter between the front and rear ends. The maximum diameter (front end diameter) of the grip portion of the handle is 50 mm. The handle assisting tool 10 is suitable for such a handle, and the locking portion 303 of the first contact portion is locked to the front end of the handle to suppress the backward movement of the handle assisting tool. Further, the inner peripheral surface 304 of the second contact portion comes into contact with the outer peripheral surface of the handle to suppress the forward movement of the handle assisting tool.

FIG. 4B is a diagram showing an example in which a handle assisting tool is attached to a knob-shaped handle having a substantially trapezoidal cross-sectional shape of the grip portion, a diameter of the front end larger than that of the rear end, and a large difference in diameter between the front and rear ends. The maximum diameter of the handle (front end diameter) is 51 mm. The handle assisting tool 10 is also suitable for such a handle, and the locking portion 303 of the first contact portion is locked to the front end of the handle to suppress the rearward movement of the handle assisting tool. Further, the inner peripheral surface 304 of the second contact portion comes into contact with the outer peripheral surface of the handle to suppress the forward movement of the handle assisting tool, and the cushion member 601 such as rubber forms the inner peripheral surface of the second contact portion. It is provided in 304, and the movement is further suppressed by adjusting the tightening degree of the screw.

FIG. 4C is a diagram showing an example in which a handle assisting tool is attached to a knob-shaped handle having a substantially drum-shaped grip portion, the largest diameter of the intermediate portion, and a small difference in diameter between the front and rear ends. The maximum diameter of the handle is 52 mm. The handle assisting tool 10 is also suitable for such a handle, in which the locking portion 303 of the first contact portion locks slightly behind the front end of the handle, and the pressure is adjusted in the direction of the arrow by adjusting the tightening degree of the screw. Is added to prevent the handle aid from moving backward. Further, the inner peripheral surface 304 of the second contact portion comes into contact with the outer peripheral surface of the handle to suppress the forward movement of the handle assisting tool.

FIG. 4D shows an example in which the handle auxiliary tool is attached to a knob-shaped handle having a wine glass-shaped grip portion, a diameter of a slightly rear portion slightly larger than that of the intermediate position, and a large difference in diameter between the front and rear ends. Is. The maximum diameter of the handle is 52 mm. The handle assisting tool 10 is also suitable for such a handle, and a cushion member 601 is provided adjacent to and behind the locking portion 303 on the inner peripheral surface of the first contact portion, and the locking portion 303 cushions. It locks with the member 601 and pressure is applied in the direction of the arrow by adjusting the degree of tightening of the screw to suppress the rearward movement of the handle assisting tool. Further, the inner peripheral surface 304 of the second contact portion comes into contact with the outer peripheral surface of the handle to suppress the forward movement of the handle assisting tool.

The attachment portion of the handle assisting tool 10 is configured to be easily applied to various handles having variations in shape and size, and can be widely used by using a cushion material, but it is adapted to the shape of each handle. It may be configured as an auxiliary tool dedicated to the handle. In that case, the shape and size of the inner peripheral surface of the mounting portion correspond to the shape and size of the outer peripheral surface of the grip portion of the handle, and the front-rear width of the slit 302 is set to about 1.0 mm to 5.0 mm. ..

Further, the arm hook portion 2 may be configured to be openable and closable like a handle described later. As an example, the arm hanging portion 2 may include two front and rear portions formed separately, and the first half portion and the second half portion may be connected so as to be approachable and detachable so that the insertion portion can be opened and closed. For example, a hinge portion is provided in a substantially intermediate portion of the main body portion, and the front half portion and the second half portion are connected to each other so as to be accessible and detachable by the hinge portion. With this configuration, in case a user or an object collides with the handle assisting tool, the arm rest is closed to prevent damage to the other party even in such a case.

FIG. 5 is a diagram showing a usage state of the handle assisting tool of FIG. 1, and is a diagram showing an opening side. As shown in FIG. 5A, the handle assisting tool 10 is attached substantially horizontally in the left-right direction, and the arm rest 2 is arranged on the right side of the handle. The arm rest 2 is located at a position lower on the front side than on the rear side, and is inclined forward and downward at an angle of 90 degrees or less with respect to the mounting surface (front of the door). As shown in FIG. 5B, pass the right arm from the insertion portion in the direction of the arrow. As shown in FIG. 5C, the door can be opened by rotating the right arm to the right (clockwise) with the arm rest 2 and pulling it forward.

FIG. 6 is a diagram showing a usage state of the handle assisting tool of FIG. 1, and is a diagram showing a push-open side. As shown in FIG. 6A, the handle assisting tool 10 is attached substantially horizontally in the left-right direction, and the arm rest 2 is arranged on the right side of the handle. The arm rest 2 is located at a position lower on the front side than on the rear side, and is inclined forward and downward at an angle of 90 degrees or less with respect to the mounting surface (front of the door). As shown in FIG. 6B, pass the right arm from the insertion portion in the direction of the arrow. As shown in FIG. 6C, the door can be pushed open by rotating the right arm to the right (clockwise) with the arm rest 2 and pushing it backward.

As shown in FIG. 6C, it is necessary to prevent the hand from hitting the partition when pushing and opening, and an interval of a predetermined interval H or more is required. In the handle assist tool 10, since the arm hook 2 is arranged on the opposite side of the partition on the push-open side, the hand rarely hits the partition, but for example, the length of the base end of the arm hook in the left-right direction. May be formed so that the width of the handle assisting tool on the push-open side in the left-right direction is larger than that on the pull-open side, and the main body portion is shifted toward the hinge side to facilitate securing a predetermined interval H.

FIG. 7 is a perspective view showing another example of the handle assisting tool according to the first embodiment, and is a view observed from the front upper side on the left side of the handle. The handle assisting tool 10 has an arm hook portion 2, a mounting portion 3 that connects to the base end side of the arm hook portion 2, and a guide portion 4 that connects to the end side of the arm hook portion 2. Here, in the handle assisting tool 10, the arm rest portion 2 and the guide portion 4 are different from the above-described example. Hereinafter, the points different from the above-mentioned example will be mainly described.

Here, in the handle assisting tool 10, the arm rest 2 is arranged on the left side of the handle. Since knob-type handle in some cases and opens by left rotating (counter-clockwise rotation), by arranging the arm hooking portion 2 on the left side of the handle, to facilitate the operation for leftward rotation of the door knob.

Here, the handle assisting tool 10 is made lighter. After rotating the grip part of the handle, it is necessary to return it with the return spring, but when the handle auxiliary tool is attached, the spring force of the return spring becomes relatively weak, so it is possible to reduce the weight of the handle auxiliary tool. desirable. When attached to both the pull-open side and the push-open side, the handle assisting tool 10 is preferably 150 g or less by itself, more preferably 120 g or less.

As an example of weight reduction, as shown in the figure, the arm rest portion 2 and the guide portion 4 are formed with a crescent-shaped cross section. The crescent-shaped convex portion faces inward (inner peripheral side), and the crescent-shaped concave portion faces outward (outer peripheral side). In other words, the handle assisting tool 10 has a groove portion 24 recessed inward from the outer peripheral surface in the arm hook portion 2 and the guide portion 4 so that the outer peripheral surface is scooped out along the extending direction thereof. As an example, the inner peripheral surfaces of the arm hanging portion 2 and the guide portion 4 have an arc shape including a part of the circumference of an ellipse in cross section.

In the above-described example and the later-described example, the weight of the arm-hanging portion and the guide portion may be reduced, and the arm-hanging portion and the guide portion may be provided with a groove portion recessed inward from the outer peripheral surface along the extending direction thereof.

FIG. 8 is a perspective view showing another example of the handle assisting tool according to the first embodiment. 9 is a view showing the handle assisting tool of FIG. 8, FIG. 9A is a front view, FIG. 9B is a plan view showing a guide portion 4, and FIG. 9C is an arm hook portion 2 and a guide portion. It is a side view which shows 4. Here, in the handle assisting tool 10, the arm hook portion 2, the mounting portion 3, and the guide portion 4 are different from the above-described example. Hereinafter, the points different from the above-mentioned example will be mainly described.

In the above example, the pair of tightening portions 301 are arranged in the vertical direction and the arm hook portion 2 is arranged substantially horizontally in the first mounting portion and the second mounting portion of the mounting portion 3, but here, the mounting portion 3 is arranged. In the first mounting portion and the second mounting portion, the tightening portion 301 is tilted counterclockwise at an angle of 30 degrees or less with respect to the horizontal line, and the arm hook portion 2 is 60 degrees or more and 90 degrees or less with respect to the horizontal line. Arranged so as to tilt clockwise at an angle. In other words, the arm rest 2 is inclined downward to the right as a whole in the front view. The front portion and the rear portion of the arm rest 2 are arranged at the same position in the front view, and are arranged slightly to the right of the handle. With this configuration, the handle assisting tool 10 can be formed to have a narrow width in the horizontal direction and can be made compact. Further, even with such a configuration, the operability is not impaired because the arm is hung on the arm rest 2 as shown in FIG. 10 described later.

Here, the guide portion 4 has a shape in which the inner peripheral surface warps toward the opposite side of the insertion portion A, and has a smooth curved shape as shown by the arrow in the figure. The guide portion 4 is formed to have a wide width in the left-right direction. As an example, the shape is substantially elliptical in front view, and the major axis direction is substantially orthogonal to the extending direction of the arm rest 2. That is, the guide portion 4 bulges in the left-right direction and is formed larger than the arm rest portion 2. As a result, when an external pressure (for example, the abdomen hits the guide portion) is applied, the surface that receives the force is wide, so that the local pressure can be dispersed.

The arm rest 2 may be made lighter. As an example, at least a part of the arm hook portion 2 and at least a part of the guide portion 4 may be provided with a groove portion 24 recessed inward from the outer peripheral surface along the extending direction thereof. In other words, at least a part of the arm hook portion 2 and at least a part of the guide portion 4 may be hollowed out in terms of cross-sectional shape. By doing so, flexibility is increased and impact resistance is enhanced.

FIG. 10 is a diagram showing a usage state of the handle assisting tool of FIG. 8, and is a diagram showing an opening side. As shown in FIG. 10A, the arm rest 2 is arranged slightly to the right of the handle. As shown in FIG. 6B, the right arm is passed through the insertion portion of the arm hook portion 2. As shown in FIG. 6 (c), the door can be opened by rotating the right arm to the right (clockwise) with the arm rest 2 and pulling it forward.

<Second Embodiment>
FIG. 11 is a plan view showing an example of a state in which the handle assisting tool according to the second embodiment is attached to the door, and FIG. 12 is a plan view (a) and a front view (b) showing the first handle assisting tool of FIG. , (C) is a side view. The handle assisting tool according to the present embodiment is suitable for a lever type handle. The description of common points with the above examples may be omitted.

The handle assisting tool set 1 includes a pair of handle assisting tools, a first handle assisting tool attached to the handle Ma on the pull-open side and a second handle assisting tool attached to the handle Mb on the push-opening side. The handle assisting tool may be attached to only one of the handle Ma on the pull-open side or the handle Mb on the push-open side. The first handle assisting tool and the second handle assisting tool may be configured symmetrically, or may be different as shown in the figure. In the following, first, an example of the handle assisting tool 11a on the pulling side will be described.

The handle assisting tool 11a (first handle assisting tool) on the pull-out side has a curved arm-hanging portion 2a for hanging an arm and operating the handle, and a mounting portion 3a connected to the base end side of the arm-hanging portion 2a. And have. The handle assisting tool 11a is attached to the handle via the attachment portion 3a. The arm hanging portion 2a has an insertion portion A, and when opening and closing the door, the user's arm reaches the arm hanging portion 2 through the insertion portion A, hangs on the arm hanging portion 2a, and operates the handle. Will be.

The operation of the handle by the arm hook 2a is only to rotate and pull with the arm, as shown in FIG. 13 described later. Therefore, according to the handle assisting tool 1, the handle can be operated only by the arm without using a hand, and indirect contact infection can be prevented by a large number of people holding and operating the same handle. In addition, static electricity generated when the hand touches the metal handle can be prevented. In addition, it becomes easy to operate the handle of a person who cannot move his / her hand freely or a person who has weak power.

Hereinafter, the handle assisting tool 11a will be described in detail. As described above, the handle assisting tool 11a has an arm hanging portion 2a and a mounting portion 3a that connects to the base end side of the arm hanging portion 2a, and preferably further connects to the end side of the arm hanging portion 2a. The guide portion 4a is provided. Further, the handle assisting tool 11a includes a fastening portion 5 for fastening to the mounting portion 3a.

The arm-hanging portion 2a has a frame shape in which three sides are surrounded and one side is open. The arm-hanging portion 2a is formed by the three-sided enclosure, and the insertion portion A is formed by one of the opening openings. The arm hook portion 2a has a substantially U-shaped or C-shaped plan view. The arm rest 2 may be formed of resin or the like, or may be formed of metal. The arm rest 2a may be formed by winding, stacking, or fitting a cushioning soft material such as rubber or sponge around a hard core material such as metal or resin. The arm rest portion 2a may be formed by coating or coating a hard core material with a soft material softer than the hard core material.

As shown, the arm rest 2a is arranged on the left side of the handle, and the insertion part faces the right side. Lever-type handle is because the pulling open side is usually made to open by left rotating (counter-clockwise rotation), by arranging the arm engaging part 2a on the left, easily the operation to the left rotates the handle ..

The arm hanging portion 2a is arranged in the left-right direction, and the front and rear enclosure portions extend in the left-right direction, and the side enclosure portion extends in the front-rear direction. The surface formed by these enclosures may be a substantially horizontal plane, but is preferably an inclined surface that inclines forward and downward as shown in the figure. In other words, the handle assisting tool 11a is inclined so that the arm rest 2a is twisted forward and downward. Since the user stands in front of the door for operation, the arm rest 2 is tilted forward and downward with respect to the mounting surface, and the front side is lower than the rear side so that the user's arm can be inserted and rotated. Make it easier.

The arm hooking portion 2a has a main body portion 21a which faces the insertion portion and is a portion on which the arm is hung, a base end portion 22a on the base end side connected to the mounting portion 3a, and a terminal portion 23a on the terminal side. The arm rest 2a may be reduced in weight as in the above example, and a groove may be formed.

The main body 21a has a curved shape, preferably an arc shape of 1/3 or more of the circumference in a plan view (an arc shape having a central angle of 120 ° or more), and more preferably a central angle of 190 ° or more. The main body 21a has, for example, a semicircular shape. The diameter of the inner circumference of the semicircular shape of the main body 21a is about 60 mm to 120 mm, preferably 70 mm to 100 mm, for example, 85 mm. The cross section of the main body 21a is, for example, circular and has a diameter of about 12 mm to 40 mm, preferably 15 mm to 35 mm, for example 20 mm. The cross section of the main body 21a may be elliptical or polygonal. The main body 21a preferably has a curved surface on the inside or near the side surface. By forming the main body portion 21a into an arc shape in this way and adapting it to the outer shape of the arm, the arm is gently contacted and the operation is made smooth.

The base end portion 22a is a portion that supports the arm rest portion. The base end portion 22a is substantially linear as a whole. The base end portion 22a is connected to the front surface of the mounting portion 3a on the outer peripheral surface. More specifically, the entire base end portion 22a is configured to overlap the front surface of the front plate portion 31a of the mounting portion 3a. The tip end portion of the base end portion 22a is located in the door stop direction with respect to the first tightening portion 301a. The inner peripheral surface of the base end portion 22a is formed in a substantially arc shape. The tip portion of the base end portion 22a is formed so that the wall thickness is gradually reduced, and is an inclined surface having a rounded plan view. The base end portion 22a is configured to overlap with, for example, two-thirds or more of the left-right width of the handle.

The end portion 23a may have an arc shape on the circumference common to the arc shape of the main body portion 21a, an arc shape having a radius of curvature different from the arc shape of the main body portion 21a, or a substantially linear shape. The end portion 23a may be formed slightly thicker than the main body portion 21a, and may be gradually formed thicker than the main body portion 21a.

The guide portion 4a is a portion that facilitates insertion of the arm into the arm hanging portion 2a, and is a portion that leads to the insertion portion or the arm hanging portion. The guide portion 4a is connected to the end portion 23a of the arm hanging portion 2a and is inclined forward and downward at the same angle as the arm hanging portion 2a. The guide portion 4a has a shape that warps to the opposite side of the insertion portion in a plan view and a shape that curves to the opposite side of the arm rest portion 2a. As an example, the guide portion 4a is formed in an arc shape having a radius of curvature larger than that of the main body portion 21a of the arm hanging portion 2a. The guide portion 4a may be formed slightly thicker and gradually thicker than the arm rest portion 2a, or may be formed slightly thinner and gradually thinner.

The attachment portion 3a is a portion for attaching the arm hook portion 2a to the handle. The mounting portion 3a has a front plate portion 31a extending in the left-right direction and a side plate portion 32a extending in the front-rear direction, and has a substantially L-shape in a plan view. When attached to the lever type handle, the front plate portion 31a comes into contact with the front end side of the handle. The side plate portion 32a is locked to the corner portion of the handle to suppress the movement of the handle assisting tool.

The mounting portion 3a projects upward or downward from the front plate portion 31a, respectively, and has two pairs of tightening portions. The pair of tightening portions 301a near the door stop side and the pair of tightening portions 305a located on the hinge side of the tightening portions 301a are arranged side by side, and screw holes are provided for each tightening portion. The fastening member of the fastening portion 5 is screwed into these screw holes.

The fastening portion 5 includes a fastening member 51, a collar 52, a holding plate 53, and a nut 54.

The fastening member 51 is provided for the number of tightening portions of the mounting portion 3a, and is screwed with the screw holes of the tightening portion. The fastening member 51 is, for example, a bolt or a pan head screw. The fastening member 51 is preferably tightened with a Phillips screwdriver or a flat-blade screwdriver.

The collar 52 is a member that is inserted through the fastening member 51, comes into contact with the rear surface of the tightening portion, and maintains a predetermined distance from the pressing plate 53. The length of the collar 52 corresponds to the thickness of the grip portion of the lever-type handle. The collar 52 may be provided for the number of fastening members 51, but a plurality of collars 52 having different lengths with respect to one fastening member 51 may be provided, and may be appropriately selected and used according to the handle to be applied. Good.

The pressing plate 53 is a member that is applied to the rear surface of the grip portion of the handle, is inserted through the fastening member 51 next to the collar 52, and is pressed forward. As an example, as shown in the figure, one pressing plate 53 is provided for each pair of upper and lower fastening members 51, and one pair of pressing plates 53 is provided for two pairs of left and right fastening members. The left and right portions of the pressing plate 53 are integrally shared on the left and right sides, and one pressing plate 53 may be provided for each of the two pairs of left and right fastening members 51.

FIG. 13 is a diagram showing an example of the pressing plate 53. As shown in FIG. 13A, the holding plate 53 has a pair of holes 531 for inserting through the upper and lower fastening members 51. 13 (b) is a sectional view taken along line II of FIG. 13 (a). As an example, as shown in the figure, the holding plate 53 is provided with a curved contact surface 532 that comes into contact with the grip portion (lever portion) of the handle on the front surface. When the grip portion of the handle has a circular shape or the like, by providing the curved contact surface 532, the contact with the grip portion can be made closer and the sliding of the handle assist tool can be suppressed.

The nuts 54 are provided for the number of fastening members 51, are inserted into the fastening member 51 next to the holding plate 53, and screwed with the fastening member 51. The nut 54 is preferably a bag nut.

FIG. 14 is a diagram showing a usage state of the handle assisting tool 11a (first handle assisting tool) on the pulling side. As shown in FIG. 14A, the handle assisting tool 11a is mounted substantially horizontally, and the arm rest 2a is arranged on the left side of the handle. The arm rest 2a is located at a position lower on the front side than on the rear side, and is inclined forward and downward at an angle of 90 degrees or less with respect to the mounting surface (front of the door). As shown in FIG. 14B, pass the left arm from the insertion portion in the direction of the arrow. As shown in FIG. 14C, the door can be opened by rotating the left arm to the left (counterclockwise) with the arm rest 2a and pulling it forward.

FIG. 15 is a diagram showing a usage state of the handle assisting tool 11b (second handle assisting tool) on the push-open side. As shown in FIG. 15A, the handle assisting tool 11b is mounted substantially horizontally, and the arm rest 2b is arranged on the right side of the handle. The arm rest 2b is located at a position lower on the front side than on the rear side, and is inclined forward and downward at an angle of 90 degrees or less with respect to the mounting surface (front of the door). As shown in FIG. 15B, pass the right arm from the insertion portion in the direction of the arrow. As shown in FIG. 15C, the door can be pushed open by rotating the right arm to the right (clockwise) with the arm rest 2b and pushing it backward.

As an example, the handle assisting tool 11b on the push-opening side is symmetrically configured with the handle assisting tool 11a on the pull-opening side. As will be described later, when the arm rest is horizontally configured, the handle assisting tool 11a can be easily configured by attaching the handle assisting tool 11a having the same shape in different directions by 180 degrees.

On the other hand, as shown in FIG. 15C, it is necessary to prevent the hand from hitting the partition when pushing it open, and it is necessary to leave a predetermined interval H or more between the partition and the partition. In order to secure this interval, it is desirable that the arm hook portion 2b of the handle assisting tool 11b is configured to be farther from the door stop end portion than the handle assisting tool 11a. Hereinafter, such a handle assisting tool 11b will be described.

FIG. 16 is a plan view (a), a front view (b), and a side view (c) showing an example of the handle assisting tool 11b (second handle assisting tool) on the push-open side. Hereinafter, the points different from the above-mentioned example will be mainly described.

The handle assisting tool 11b has an arm hook portion 2b and a mounting portion 3b that connects to the base end side of the arm hook portion 2b, and preferably further, a guide portion 4b that connects to the end side of the arm hook portion 2b. Have. The handle assisting tool 11b further includes a fastening portion 5 to be fastened to the mounting portion 3b. The guide portion 4b is configured to be symmetrical with the handle assisting tool 11a described above, and detailed description thereof will be omitted here.

The arm-hanging portion 2b has a frame shape in which three sides are surrounded and one side is open. The arm-hanging portion 2b is formed by the three-sided enclosure, and the insertion portion is formed by one open opening. The arm hook portion 2b has a substantially U-shaped or C-shaped plan view. As shown in the figure, the arm rest 2b is arranged on the right side of the handle, and the insertion part faces the left side. Since the lever-type handle is normally opened by rotating clockwise (clockwise) on the push-open side, arranging the arm rest 2b on the right side facilitates the operation of rotating the handle clockwise.

As shown in the figure, the arm hanging portion 2b is arranged in the left-right direction, the front and rear enclosure portions extend in the left-right direction, and the side enclosure portion extends in the front-rear direction. The surface formed by these enclosures may be a substantially horizontal plane, but is preferably an inclined surface that inclines forward and downward as shown in the figure. In other words, the handle assisting tool 11b is inclined so that the arm rest 2b is twisted forward and downward. Since the user stands in front of the door to operate, the arm rest 2b is tilted forward and downward with respect to the mounting surface, and the front side is lower than the rear side, so that the user's arm can be inserted and rotated. Make it easier.

The arm hooking portion 2b has a main body portion 21b which faces the insertion portion and is a portion on which the arm is hung, a base end portion 22b on the base end side connected to the mounting portion 3b, and a terminal portion 23b on the terminal side. The main body portion 21b and the terminal portion 23b are configured symmetrically with the main body portion and the terminal portion of the handle assisting tool 11a, and detailed description thereof will be omitted here.

Here, the base end portion 22b is connected to the front surface of the mounting portion 3b on the outer peripheral surface of the tip end portion. That is, the handle assisting tool 11a described above is configured so that the entire base end portion 22a overlaps the front surface of the front plate portion of the mounting portion 3a, whereas the handle assisting tool 11b has the base end portion 22b hitting the door. It is displaced in the direction away from the end portion, and the tip portion is located on the hinge side of the first tightening portion 301b. The arm hook portion 2b is configured so as to overlap with, for example, 1/3 or less of the left and right width of the handle. As a result, the width of the handle assisting tool 11b in the left-right direction becomes large, the arm hook portion 2b is shifted in the hinge direction, and it becomes easy to secure a predetermined interval H.

The attachment portion 3b is a portion for attaching the arm hook portion 2b to the handle. The mounting portion 3b has a front plate portion 31b extending in the left-right direction and a side plate portion 32b extending in the front-rear direction, and has a substantially L-shape in a plan view. When attached to the lever-type handle, the front plate portion 31b comes into contact with the front end side of the handle. The side plate portion 32b is locked to the corner portion of the handle to suppress the movement of the handle assisting tool.

FIG. 17 is a sectional view taken along line JJ of the mounting portion of FIG. 16 and is a diagram showing an example of the front plate portion 31b of the mounting portion 3b. As shown in the figure, as an example, the front plate portion 31b is provided with a curved contact surface 306b at a substantially central portion in the vertical direction on the rear surface. The cross section of the grip portion of the handle Mb may be circular, and in such a case, by providing the curved contact surface 306b, the contact with the handle is made closer and the sliding of the handle auxiliary tool 11b is suppressed. it can. It should be noted that such a curved contact surface may also be provided on the handle assisting tool 11a described above.

18 to 22 are views showing an attachment state when the handle assisting tool according to the present embodiment is attached to the handle. Even if it is a lever type handle, the shape and size of the grip portion differ depending on the manufacturer. As shown in the figure, the handle assisting tool according to the present embodiment can be applied to various handles having variations in shape and size. Here, an example of the handle assisting tool 11b will be illustrated and described.

FIG. 18A is a plan view showing an example of the lever type handle Mb, and FIG. 18B is a front view thereof. Here, the grip portion of the handle Mb has a wide vertical width, but a small front-rear thickness and a curved end portion. As shown in the plan view of FIG. 18 (c) and the front view of FIG. 18 (d), the handle assisting tool 11b is suitable for such a handle. The front plate portion 31b of the mounting portion 3b abuts in front of the grip portion of the handle Mb, and the side plate portion 32b engages with the corner portion. Further, here, the collar 52 having a small outer diameter and a short length is used.

FIG. 19A is a plan view showing an example of the lever type handle Mb, and FIG. 19B is a front view thereof. Here, the grip portion of the handle Mb has a shape in which the vertical width is narrow but the front and rear thickness is large. As shown in the plan view of FIG. 19 (c) and the front view of FIG. 19 (d), the handle assisting tool 11b is also suitable for such a handle. The front plate portion 31b of the mounting portion 3b abuts in front of the grip portion of the handle Mb, and the side plate portion 32b engages with the corner portion. Further, here, the collar 52 having a large outer diameter is used.

FIG. 20A is a plan view showing an example of the lever type handle Mb, and FIG. 20B is a front view thereof. Here, the grip portion of the handle Mb has a circular cross section and a curved end portion. As shown in the plan view of FIG. 20 (c) and the front view of FIG. 20 (d), the handle assisting tool 11b is also suitable for such a handle. The front plate portion 31b of the mounting portion 3b abuts in front of the grip portion of the handle Mb, and the side plate portion 32b engages with the corner portion. Further, here, curved contact surfaces are provided on the rear surface of the front plate portion 31b and the front surface of the pressing plate 53 to suppress the sliding of the handle assisting tool 11b.

21 (a) is a plan view showing an example of the lever type handle Mb, and FIG. 21 (b) is a front view thereof. Here, the grip portion of the handle Mb has a curved front view shape and a shape in which the vertical width fluctuates. As shown in the plan view of FIG. 20 (c) and the front view of FIG. 20 (d), the handle assisting tool 11b is also suitable for such a handle. The front plate portion 31b of the mounting portion 3b abuts in front of the grip portion of the handle Mb, and the side plate portion 32b engages with the corner portion. Further, as the collar 52, those having different outer diameters (the collar 522 has a larger outer diameter than the collar 521) are used.

FIG. 22A is a plan view showing an example of the lever type handle Mb, and FIG. 22B is a front view thereof. Here, the grip portion of the handle Mb has an arc shape that protrudes forward in a plan view. Therefore, a gap is formed in the portion indicated by the arrow K when it comes into contact with the rear surface of the mounting portion which is linear in a plan view. As shown in the plan view of FIG. 22 (c) and the front view of FIG. 22 (d), the handle assisting tool 11b is also suitable for such a handle. The front plate portion 31b of the mounting portion 3b abuts in front of the grip portion of the handle Mb, and the side plate portion 32b engages with the corner portion. Further, here, the gap K portion is dealt with by fitting a spacer 602 such as a rubber ring into the front plate portion 31b and the grip portion of the handle.

FIG. 23 is a diagram showing an attachment state when the handle assisting tool 11b of FIG. 16 is attached to the handle. The handle aid 11b is also suitable for a U-shaped handle. FIG. 23 (a) is a plan view showing an example of the U - shaped handle Mb, and FIG. 23 (b) is a front view thereof. Here, the handle Mb extends in the vertical direction. As shown in the plan view of FIG. 23 (c) and the front view of FIG. 23 (d), the handle auxiliary tool 11b is attached in the vertical direction along the handle Mb, and the front plate of the attachment portion 3b is attached to the grip portion. The portion 31b comes into contact with the front portion, and the side plate portion 32b engages with the corner portion. The color 52 may be used as in the above example, but the color 52 may be omitted as shown in the figure.

The attachment portion of the handle assisting tool 11 is configured to be easily applied to various handles having variations in shape and size, and a curved contact surface is provided or a constituent member of the fastening portion is appropriately selected. Therefore, it can be widely used, but it may be configured as an auxiliary tool dedicated to the handle according to the shape of each handle. In that case, the shape and size of the mounting portion should match the shape and size of the grip portion of the handle to which it is applied.

Further, the arm hook portion may be configured to be openable and closable like a handle described later. As an example, the arm hanging portion may include two front and rear portions formed separately, and the first half portion and the second half portion may be connected so as to be close to each other and openable, and the insertion portion may be opened and closed. For example, a hinge portion is provided in a substantially intermediate portion of the main body portion, and the front half portion and the second half portion are connected to each other so as to be accessible and detachable by the hinge portion. With this configuration, in case a user or an object collides with the handle assisting tool, the arm rest is closed to prevent damage to the other party even in such a case.

FIG. 24 is a perspective view showing another example of the handle assisting tool according to the second embodiment. Although other examples of the handle assisting tool 11b are illustrated and described here, the handle assisting tool 11a can also be configured in the same manner.

The handle assisting tool 11b has an arm hook portion 2b, a mounting portion 3b connected to the base end side of the arm hook portion 2b, and a guide portion 4b connected to the end side of the arm hook portion 2b. In the handle assisting tool 11b, the arm rest portion 2b and the guide portion 4b are different from the above-described example. Hereinafter, the points different from the above-mentioned example will be mainly described.

In the above example, the arm hanging portion 2b is arranged substantially horizontally in the left-right direction, but here, the angle is 90 degrees or more and 120 degrees or less with respect to the mounting portion 3b arranged substantially horizontally. It is composed of. In other words, the arm rest 2b forms an angle of 60 degrees or more and 90 degrees or less in the clockwise direction with respect to the horizon. With this configuration, the handle assisting tool 10b can be formed to have a narrow width in the horizontal direction and can be made compact.

Further, preferably, the arm hook portion 2b is inclined forward and left so that the surface formed by the surrounding portion is twisted. That is, the front portion of the arm rest 2b is inclined to the left of the rear portion. Since the user operates from the front right side, this configuration facilitates the insertion and rotation of the arm.

The guide portion 4b is formed larger than the arm rest portion 2b by bulging in the left-right direction. By widening the width in the left-right direction in this way, it becomes easier to guide the insertion of the arm.

FIG. 25 is a diagram showing a usage state of the handle assisting tool of FIG. 24, and is a diagram showing a push-open side. As shown in FIG. 25A, the arm hook portion 2b is arranged slightly to the right of the handle. As shown in FIG. 25 (b), the right arm is passed through the insertion portion of the arm hook portion 2b. As shown in FIG. 25 (c), the door can be pushed open by rotating the right arm to the right (clockwise) with the arm rest 2b and pushing it backward.

FIG. 26 is a front view showing another example of the handle assisting tool according to the second embodiment. Here, the door L is a sliding door. The handle assisting tool 11c of the present embodiment can be applied to the handle of the sliding door. Hereinafter, the points different from the above-mentioned example will be mainly described.

The handle assisting tool 11c has a curved first arm hanging portion 2b for hanging the arm and operating the handle, and a mounting portion 3b connected to the base end side of the first arm hanging portion 2b. The handle auxiliary tool 11c is attached to the handle via the attachment portion 3b. The arm hanging portion 2b has an insertion portion for inserting the arm, and when opening and closing the door, the user's arm reaches the arm hanging portion 2b through this insertion portion and hangs on the arm hanging portion 2b. You will be able to operate the handle. The handle assisting tool 11c may further have a guide portion 4b.

The first arm hanging portion 2b, the mounting portion 3b, and the guide portion 4b can be configured in the same manner as the arm hanging portion, the mounting portion, and the guide portion of the above-described example, and detailed description thereof will be omitted. The mounting portion 3b can be appropriately configured according to the handle Mc. For example, it has a tightening portion 301b and is fixed to the sliding door L by a fastening member 51.

The handle assisting tool 11c further has a curved second arm rest 2c for hanging the arm and operating the handle. The second arm hanging portion 2c is formed symmetrically with the main body portion of the first arm hanging portion 2b, and is formed in a substantially U-shape or a C-shape. The insertion portion of the first arm hanging portion 2b faces the door stop side, while the insertion portion of the second arm hanging portion 2c faces the opposite side.

Illustrated shows the side opening Migibiki, first arm hooking portion 2b and the second arm engaging portion 2c is disposed on the right side of the handle. When opening the door, the door can be opened by passing the arm through the insertion portion of the first arm hanging portion 2b and pulling it to the right toward the first arm hanging portion 2b. When closing the door, the door can be closed by passing the arm through the insertion portion of the second arm hanging portion 2c and pulling it to the left toward the second arm hanging portion 2c.

The left-handed opening side of the sliding door is configured symmetrically with the above. Further, if the sliding door is automatically closed when the external force is lost, the second arm hook portion 2c may not be provided.

According to the handle assisting tool 11c, the handle can be operated only by the arm without using a hand, and indirect contact infection can be prevented by a large number of people holding the same handle (with a finger) and operating it. In addition, static electricity generated when the hand touches the metal handle can be prevented. In addition, it becomes easy to operate the handle of a person who cannot move his / her hand freely or a person who has weak power.

<Third Embodiment>
FIG. 27 is a plan view showing an example of a state in which the handle according to the third embodiment is attached to the door. As shown, the door L is provided with a handle device 7. The handle device 7 includes a handle set 9 including a pair of handles 9a and handles 9b that are attached to the pull-open side and the push-open side of the door L, respectively, and a pair of mounting seats 8a and 8b for attaching these handles to the door L. And includes a latch mechanism (not shown). The door L is attached to the door frame by the hinge L1, and the handles 9a and 9b are attached at positions close to the door stop end of the door L so that the door can be opened and closed. Conventional techniques shall be appropriately used for mechanisms such as mounting seats, latches, springs, and set screws, and detailed description thereof will be omitted here.

The handles 9a and 9b will be described below. As an example, as shown in the figure, the handle on the pull-open side (first handle) 9a and the handle on the push-open side (second handle) 9b are symmetrically configured. Further, as described later, when the arm hook portion is horizontally configured, the handle 9b can be easily configured by attaching a handle 9a having the same shape as the handle 9a in different directions by 180 degrees. Hereinafter, the handle 9a on the pulling side will be described as an example.

28 is a plan view (a), a front view (b), and a side view (c) showing a handle (first handle) 9a on the pull-out side of FIG. 27.

The handle 9a is rotatably attached to the mounting seat 8a, and has a mounting portion (shaft portion) 91a for mounting on the mounting seat 8a and a curved arm hook portion 92a for operating the door by hanging an arm. Including. The arm hanging portion 92a has an insertion portion A, and when opening and closing the door, the user's arm reaches the arm hanging portion 92a through the insertion portion A and hangs on the arm hanging portion 92a to open and close the door. Will come to do.

The door opening / closing operation by the arm rest 92a is only to rotate and pull with the arm. Therefore, according to the handle 9a, the door can be opened and closed only by the arm without using a hand, and indirect contact infection can be prevented by a large number of people holding and operating the same handle. In addition, static electricity generated when the hand touches the metal handle can be prevented. In addition, it becomes easy to operate the handle of a person who cannot move his / her hand freely or a person who has weak power.

The handle 9a will be described in detail below. As described above, the handle 9a includes a mounting portion (shaft portion) 91a and an arm hook portion 92a, and preferably further includes a guide portion 93a.

The mounting portion 91a is a portion for mounting the arm hanging portion 92a to the mounting seat 8a. The mounting portion 91a is connected to the base end side of the arm hanging portion 92a and is mounted via the mounting seat 8a so as to be substantially perpendicular to the door surface. The tip of the mounting portion 91a is formed to have a small outer diameter, and is provided with a hole portion or the like for connecting to a connecting member or the like (not shown). The arm hanging portion 92a is continuously provided in the intersecting direction of the mounting portion 91a.

The arm-hanging portion 92a has a frame shape in which three sides are surrounded and one side is open. The arm-hanging portion 92a is formed by the three-sided enclosure, and the insertion portion A is formed by one of the opening openings. As shown, the arm rest 92a is arranged on the left side of the mounting seat 8a, and the insertion portion faces to the right. Since the lever type handle is normally opened by rotating counterclockwise (counterclockwise) on the pulling side, the arm rest 92a is arranged on the left side to facilitate the left rotation operation.

In the arm hanging portion 92a, the front and rear enclosure portions extend to the left and right, and the side enclosure portion extends to the front and back. The surface formed by these enclosures is, for example, a substantially horizontal plane.

As an example, the arm rest 92a may be inclined forward and downward. That is, it may be an inclined surface in which the surfaces formed by the front, rear and side portions of the arm rest 92a are inclined forward and downward. Since the user (for example, a small child or an old man) stands in front of the door and operates it, tilting it forward and downward with respect to the mounting surface makes it easier to insert and rotate the user's arm. ..

The arm hooking portion 92a has a main body portion 921a which faces the insertion portion and is a portion on which the arm is hung, a base end portion 922a which connects to the mounting portion 91a, and an end portion 923a.

The main body portion 921a has a curved shape, preferably an arc shape of 1/3 or more of the circumference in a plan view (an arc shape having a central angle of 120 ° or more), and more preferably a central angle of 190 ° or more. The main body 921a has, for example, a semicircular shape. The diameter of the inner circumference of the semicircular shape of the main body 921a is about 60 mm to 120 mm, preferably 70 mm to 100 mm, for example, 85 mm. The cross section of the main body portion 921a is, for example, circular and has a diameter of about 12 mm to 40 mm, preferably 15 mm to 35 mm, for example, 20 mm. By making it arcuate in this way and adapting it to the outer shape of the arm, it makes contact with the arm gently and makes the operation smooth.

The base end portion 922a is a portion that supports the arm rest portion. The base end portion 922a may have an arc shape on the same circumference as the arc shape of the main body portion 921a, an arc shape having a radius of curvature different from that of the arc shape of the main body portion 921a, or a substantially linear shape. The base end portion 922a may be formed slightly thicker than the main body portion 921a, and may be gradually formed thicker than the main body portion 921a.

The end portion 923a may have an arc shape on the circumference common to the arc shape of the main body portion 921a, an arc shape having a radius of curvature different from the arc shape of the main body portion 921a, or a substantially linear shape. The end portion 923a may be formed slightly thicker than the main body portion 921a, and may be gradually formed thicker than the main body portion 921a.

The guide portion 93a is a portion that facilitates insertion of the arm into the arm hanging portion 92a, and is a portion that leads to the insertion portion or the arm hanging portion. The guide portion 93a is connected to the terminal portion 923a of the arm hanging portion 92a and is inclined forward and downward at the same angle as the arm hanging portion 92a. The guide portion 93a has a shape that warps to the opposite side of the insertion portion in a plan view, and has a shape that curves to the opposite side of the arm rest portion 92a. The guide portion 93a is formed in an arc shape having a radius of curvature larger than that of the main body portion 921a of the arm hanging portion 92a. As an example, the cross section of the guide portion 93a is formed in a circular shape like the arm rest portion 92a. The guide portion 93a is formed to be slightly thicker than the arm rest portion 92a, and may be gradually formed to be thicker.

Although not shown, the handle 9a may be configured so as to form a 120 degrees from 90 degrees or more in the counterclockwise direction with respect to the arm engaging portion 92a is a horizontal line. With this configuration, the handle 9a can be formed to have a narrow width in the left-right direction and can be made compact.

Further, the arm hanging portion 92a may be inclined so that the surface formed by the surrounding portion is twisted forward and to the right. That is, the front portion of the arm rest 2a may be inclined to the front right side with respect to the rear portion. Since the user operates from the front left side, this configuration facilitates the insertion and rotation operation of the arm.

FIG. 29 is a plan view (a), a front view (b), and a side view (c) showing another example of the push-open side handle (second handle) according to the third embodiment. Hereinafter, the points different from the above-mentioned example will be mainly described. The handle 9a on the pull-out side may be configured symmetrically with the handle 9b described below.

The handle 9b is rotatably attached to the mounting seat 8b, and has a mounting portion (shaft portion) 91b for mounting on the mounting seat 8b and a curved arm hook portion 92b for operating the door by hanging an arm. Including. The arm hanging portion 92b has an insertion portion, and when opening and closing the door, the user's arm reaches the arm hanging portion 92b through the insertion portion and hangs on the arm hanging portion 92b to open and close the door. become. The door opening / closing operation by the arm rest 92b is only to rotate and push with the arm. The handle 9b preferably further includes a guide portion 93b. The mounting portion 91b is configured symmetrically with the handle 9a described above, and detailed description thereof will be omitted here.

The arm-hanging portion 92b has a frame shape in which three sides are surrounded and one side is open. The arm-hanging portion 92b is formed by the three-sided enclosure, and the insertion portion A is formed by one of the opening openings. As shown, the arm rest 92b is arranged on the right side of the mounting seat 8b, and the insertion portion faces to the left. Since the lever type handle is normally opened by rotating clockwise (clockwise) on the push-open side, the arm hook portion 92b is arranged on the right side to facilitate the right rotation operation.

In the arm hanging portion 92b, the front and rear enclosure portions extend to the left and right, and the side enclosure portions extend back and forth. The surface formed by these enclosures is, for example, a substantially horizontal plane.

As an example, the arm rest 92b may be inclined forward and downward. That is, it may be an inclined surface in which the surfaces formed by the front, rear and side portions of the arm rest 92b are inclined forward and downward. Since the user stands in front of the door to operate it, tilting it forward and downward with respect to the mounting surface makes it easier for the user to insert and rotate the arm.

The arm hanging portion 92b has a main body portion 921b, which is a portion on which the arm is hung, faces the insertion portion, a base end portion 922b connected to the mounting portion 91b, and an end portion 923b. The main body portion 921b and the terminal portion 923b are configured symmetrically with the above-mentioned example, and detailed description thereof will be omitted here.

The base end portion 922b is a portion that supports the arm rest portion. The base end portion 922b is formed in a substantially linear shape in a plan view. The left-right length of the base end portion in the above example was substantially the same as the front-rear length of the mounting portion, but here, the left-right length of the base end portion 922b is the front-rear direction of the mounting portion 91b. It is about twice the length of. In other words, here, the second handle 9b is formed to have a wider width in the left-right direction than the first handle 9a. In this way, the second handle 9b has a longer base end portion 922b to increase the distance from the partition of the arm hook portion 92b so that the hand does not hit the partition when the arm is pushed open. Can be done.

Although not shown, the handle 9b may be configured such that the arm rest 92b is at an angle of 60 degrees or more and 90 degrees or less in the clockwise direction with respect to the horizon. With this configuration, the handle 9b can be formed to have a narrow width in the left-right direction and can be made compact.

Further, the arm rest portion 92b may be inclined forward and to the left so as to twist. That is, the arm hanging portion may be configured such that the surface formed by the enclosure portion is an inclined surface that is inclined forward and to the left. Since the user operates from the front right side, this configuration facilitates the insertion and rotation of the arm.

The guide portion 93b may be formed symmetrically with the guide portion 93a described above, but may be formed in a substantially sphere as shown in the figure. Further, the guide portion 93b may be formed separately from the arm hanging portion 92b, connected to the arm hanging portion 92b with a screw or the like, and may be removable.

Figure 30 shows another example of the second handle of the third embodiment. FIG. 30A is a plan view observed from the upper right, FIG. 30B is a side view thereof, and FIG. 30C is a view for explaining attachment to the door. In the following, the description of the portion symmetrically configured with the handle 9a will be omitted, and the main differences will be described.

Here, the handle 9b is configured such that the arm rest portion 92b can be opened and closed. As an example, the arm hanging portion 92b includes two front and rear portions formed separately, a first main body portion 9211b and a base end portion 922b are provided in the rear portion, and a second main body portion 9212b and an end portion are provided in the front half portion. 923b is provided. That is, the main body portion 921b of the arm rest portion 92b is composed of the first main body portion 9211b and the second main body portion 9212b. The arm hanging portion 92b is connected so that the first half portion and the second half portion can be approached and separated, and the insertion portion can be opened and closed.

The arm hook portion 92b is provided with a hinge portion 924b in a substantially intermediate portion of the main body portion 921b, and the hinge portion 924 connects the first half portion and the second half portion so as to be accessible and detachable. The hinge portion 924b has a spring urged in the opening direction, and the arm rest portion 92b is usually in a state in which the first half portion and the second half portion are separated and the insertion portion is open. When an external force is applied from the front, the first half of the arm rest 92b approaches the second half, the insertion portion becomes narrower, and the arm rest portion 92b closes.

By configuring the handle 9b so as to be openable and closable in this way, in case a user or an object collides with the handle, the arm hook portion 2b is closed to prevent damage to the other party even in such a case.

The arm hook portion 92b may be in a state in which the first half portion and the second half portion are usually close to each other and the insertion portion is closed. For example, the arm rest 92b may have a spring urged in the direction in which the hinge portion 924 closes. Then, the insertion part opens to the extent that the arm can be inserted by an external force when trying to insert the arm, or the guide part 93b guides the arm so that it can be inserted and the main body part opens to the extent that the arm can be hung and operated. It may be. Alternatively, for example, the arm rest 92b may be opened to the extent that it can be operated by an external force when the arm is to be inserted, and the opened state may be maintained.
Further, for example, a torsion spring is provided in the hinge portion 924 so as to open forward, and when an external force is applied from the front, the first half portion of the arm hook portion 92b approaches the second half portion and the insertion portion narrows (for example). The arm rest 92b may be opened and closed by opening (for example, the latch is disengaged) when the arm rest is closed (the latch is engaged) and an external force is applied again.
As a result, the arm rest portion 92b can be opened by pressing the guide portion 93b, for example, in the closed state when not in use.

The handle 9b may be attached to the door as follows. That is, the mounting portion 91b is provided with a hole portion 911b at the center thereof, and a metal mounting bracket 71 is connected to the mounting portion 91b. The mounting bracket 71 is a rod-shaped member having a diameter smaller at both ends than the intermediate portion, and one end portion (front end portion) is aligned with the hole portion 911b of the mounting portion 91b so as to extend in the front-rear direction. The mounting bracket 71 has a shaft hole 711 at its center. The shaft hole 711 is a bottomed square hole that opens to the other end (rear end) and reaches the front end. The mounting bracket 71 has a hole portion 712 that reaches the shaft hole 711 from the outer peripheral surface in the intermediate portion having a large diameter. The hole 712 is provided with a female thread, and a set screw (not shown) is screwed into the hole.

The connection of the mounting bracket 71 to the mounting portion 91b is, for example, by insert molding. The handle 9b can be widely used as a member of various handle devices by preparing a plurality of mounting brackets 71 having different sizes and orientations of the shaft holes 711. When the handle 9b is made of a metal material, the mounting bracket 71 may be joined to the handle 9b by welding, may be screwed, or may have a concavo-convex shape. ..

The center pole 72 is a member that connects the handle on the pull-open side and the handle on the push-open side, and has a quadrangular cross section. The width of the cross section of the center pole 72 is, for example, about 7 mm to 8 mm. The center pole 72 penetrates the mounting seats on both sides and is arranged in the mounting seats so that both ends are inserted into the shaft holes 711 of the mounting brackets 71 connected to the handles on both sides. The center pole 72 is rotatable with respect to the mounting seat.

A collar 73 may be provided on the center pole 72. This is to prevent rattling between the mounting seat and the center pole 72. By preparing a plurality of collars 73 having different sizes, a wide range of mounting seats can be supported.

Further, the guide portion in the above example preferably has a structure in which the peripheral edge is rounded, a structure in which the contact surface is wide (including a structure in which the contact surface is formed in a lattice shape or a net shape, etc.), and a structure in which flexibility is provided. This is to soften the impact of a person or an object in preparation for such a case because the user or an object may hit or get caught on the handle regardless of whether it is operated or not operated.

In addition, based on the above description, those skilled in the art may be able to conceive of additional effects and various modifications of the present invention, but the aspects of the present invention are limited to the examples of the above-described embodiments. is not it. Various additions, changes and partial deletions may be made without departing from the conceptual idea and purpose of the present invention derived from the contents specified in the claims and their equivalents.

1 Handle Auxiliary Tool Set 10, 11a, 11b Handle Auxiliary Tool 2 Arm Hook 3 Mounting 4 Guide 5 Fastening 9 Handle Set 9a, 9b Handle 91 Mounting 92 Arm Hook 93 Guide

Claims (5)

A handle aid that attaches to the handle of a rotating door that rotates to release the latch .
A curved arm rest for hanging the arm and operating the handle,
It has a mounting portion that connects to the base end side of the arm rest portion, and has.
The arm hook portion has an insertion portion for inserting the arm, and has an insertion portion.
The arm hook portion has an arc-shaped main body portion extending in the front-rear direction for rotating the handle to release the latch.
The mounting portion has a substantially semi-cylindrical first mounting portion and a second mounting portion.
The first mounting portion is formed integrally with the arm rest portion.
The first mounting portion and the second mounting portion are handle assisting tools characterized in that a locking portion projecting inward in the radial direction from an inner peripheral surface is provided at a front end thereof. A handle aid that attaches to the handle of a rotating door that rotates to release the latch .
A curved arm rest for hanging the arm and operating the handle,
It has a mounting portion that connects to the base end side of the arm rest portion, and has.
The arm hook portion has an insertion portion for inserting the arm, and has an insertion portion.
The arm hook portion has an arc-shaped main body portion extending in the front-rear direction for rotating the handle to release the latch.
The mounting portion has a substantially semi-cylindrical first mounting portion and a second mounting portion.
The first mounting portion is formed integrally with the arm rest portion.
The handle assisting tool, wherein the first mounting portion and the second mounting portion have a portion whose inner peripheral surface is gradually reduced in diameter toward the rear and formed in a substantially tapered cross-sectional view. A handle aid that can be attached to the door handle
A curved arm rest for hanging the arm and operating the handle,
It has a mounting portion that connects to the base end side of the arm rest portion, and has.
The arm hook portion has an insertion portion for inserting the arm, and has an insertion portion.
The handle assisting tool has a front plate portion extending in the left-right direction and a side plate portion extending in the front-rear direction, and has a substantially L-shape in a plan view. A handle aid that can be attached to the door handle
A curved arm rest for hanging the arm and operating the handle,
It has a mounting portion that connects to the base end side of the arm rest portion, and has.
The arm hook portion has an insertion portion for inserting the arm, and has an insertion portion.
The arm rest is a handle assisting tool characterized in that it can be opened and closed. The handle of the door
A curved arm rest for hanging the arm,
It has a mounting portion that connects to the base end side of the arm rest portion, and has.
The arm hook portion has an insertion portion for inserting the arm, and has an insertion portion.
The arm hook is a handle that can be opened and closed.

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