JP7087037B2 - Door lever - Google Patents

Description

The present invention relates to a door lever that can be attached to a door knob (grip ball) to form a lever-type handle.

This type of door lever is disclosed in, for example, Patent Document 1.

Jitsufuku No. 03-039575 Gazette

In recent years, the violence of the coronavirus has dramatically increased the number of people infected with the virus all over the world, causing a large number of deaths. As one of the infection routes of a virus, it is known that an infected person is transmitted to a non-infected person through something touched by the palm. For example, a door knob held by a person when opening and closing a door can also be a virus transmission route.

Therefore, it is an object of the present invention to provide a door lever capable of preventing infection of a virus that mediates a door knob.

The door lever according to the first aspect of the present invention includes a mounting portion that can be rotationally and integrally attached to the knob of the door, and a lever portion that is rotationally and integrally provided to the mounting portion. It has a displacement surface on the other side in the rotation axis direction, which is displaced to one side in the rotation axis direction as it moves away from the rotation axis, and is displaced to the other side in the rotation axis direction as it advances to one side in the rotation direction.

By attaching a door lever having such a configuration to a knob of a right-opening door or a left-opening door so that the other side in the rotation axis direction is the door side, an elbow is inserted between the door and the lever portion to easily open the door. be able to. In particular, since the displacement surface is formed on the lever portion, when the lever portion is pulled toward the front, the elbow or the upper arm portion fits the displacement surface, and the lever portion can be easily and surely pulled toward the front. ..

The door lever according to the second aspect of the present invention includes a mounting portion that can be rotationally and integrally attached to the knob of the door, and a lever portion that is rotationally and integrally provided to the mounting portion. , The first displacement surface and the second displacement surface are provided on the other side in the direction of the rotation axis. The first displacement surface is a surface that is displaced to one side in the direction of the rotation axis as the distance from the rotation axis increases. The second displacement surface is a surface formed at a position farther from the rotation axis than the first displacement surface and is displaced to the other side in the rotation axis direction as it advances to one in the rotation direction.

By attaching a door lever having such a configuration to a knob of a right-opening door or a left-opening door so that the other side in the rotation axis direction is the door side, an elbow is inserted between the door and the lever portion to easily open the door. You will be able to do it. In particular, since the second displacement surface is formed on the lever portion, when the lever portion is pulled toward you, the elbow or upper arm portion fits on the second displacement surface, and the lever portion is easily and surely forward. Can be pulled to.

The door lever according to the third aspect of the present invention is the door lever according to the first aspect or the second aspect, in which the lever portion is curved in one of the rotation directions as the distance from the rotation axis is increased.

The door lever according to the fourth aspect of the present invention is the door lever according to any one of the first to third aspects, and a plurality of lightening portions are provided in the lever portion.

In the door lever according to the fifth aspect of the present invention, the door lever according to any one of the first to fourth aspects is attached to the knob of the door, and the door and the lever portion thereof. The maximum value of the separation distance is 60 mm to 80 m.

In the door lever according to the sixth aspect of the present invention, the door lever according to any one of the first to fifth aspects is attached to the knob of the door, and the rotation position of the knob is in the closed position. Occasionally, the attachment portion is attached to the knob so that the tip portion of the lever portion is arranged at a position higher than the rotation axis.

According to the door lever according to the present invention, the door can be easily opened by inserting an elbow between the door and the lever portion without grasping the door knob with the palm, so that the virus can be transmitted through the door knob. Can be prevented.

It is a top view which shows the state which attached the door lever which concerns on embodiment of this invention to a knob of a door. It is a left side view which shows the state which the door lever which concerns on embodiment of this invention is attached to the knob of a door. It is a front view which shows the state which the door lever which concerns on embodiment of this invention is attached to the knob of a door. It is a top view which shows the state which attached the door lever which concerns on embodiment of this invention to a knob of a door. It is a bottom view which shows the state which the door lever which concerns on embodiment of this invention is attached to the knob of a door. It is a left side view which shows the state which the door lever which concerns on embodiment of this invention is attached to the knob of a door. (A) is a sectional view taken along the line AA of FIG. 3, (b) is a sectional view taken along the line BB of FIG. 3, (c) is a sectional view taken along the line CC of FIG. It is a figure. In each cross-sectional view, the one drawn on the right side is drawn closer to the door, and the one drawn on the left side is drawn farther from the door. It is a front view which shows the state which the door lever which concerns on embodiment of this invention is attached to the knob of a left-opening door. It is a front view which shows the state which the door lever which concerns on another Embodiment 2 of this invention is attached to the knob of a right-opening door. It is a front view which shows the state which the door lever which concerns on other embodiment of this invention is attached to the knob of a door. It is a top view which shows the state which attached the door lever which concerns on other embodiment of this invention to a knob of a door. (A) is a sectional view taken along the line AA of FIG. 10, (b) is a sectional view taken along the line BB of FIG. 10, (c) is a sectional view taken along the line CC of FIG. FIG. 10 (e) is a cross-sectional view taken along the line EE of FIG. In addition, each cross-sectional view is drawn so that the one drawn on the right side is closer to the door, and the one drawn on the left side is farther from the door.

Hereinafter, the door lever according to the embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the door lever 1 according to the embodiment of the present invention is used by being attached to a knob 3 (grip ball) of the door 2, and the door 2 can be easily operated by using an elbow. It can be opened. In this embodiment, a left-opening door will be described as an example. A left-opening door is a door whose hinge is on the left side when viewed from the standing position where the door is opened toward you. Further, when the knob 3 of the left-opening door 2 in the present embodiment is rotated counterclockwise (rotated counterclockwise when viewed from the standing position where the door is opened toward you; the same applies hereinafter), the latch bolt 17 is engaged with the door frame 18. When retracted from 19 and rotated clockwise, the latch bolt 17 engages with the engaged portion 19 of the door frame 18. The knob 3 is urged in the clockwise rotation direction by a spring.

As shown in FIGS. 3 to 6, the door lever 1 is composed of a mounting portion 6 that can be mounted on the knob 3 of the door 2 and a lever portion 7 formed on the mounting portion 6.

The mounting portion 6 has a structure that can be integrally rotationally mounted on the knob 3 of the door 2. In the present embodiment, the mounting portion 6 includes a substantially cylindrical mounting body portion 9 having a slit 8 partially formed therein, a flange portion 10 formed in the vicinity of the slit 8 of the mounting body portion 9, and a flange portion 10. A tightening bolt 11 whose tip is screwed to a member facing the flange portion 10 (in this embodiment, the base portion of the lever portion 7), an inner peripheral surface of the mounting body portion 9, and an outer peripheral surface of the knob 3. It has a non-slip member 12 provided between the two. When the tightening bolt 11 is tightened, the width of the slit 8 is narrowed, the inner diameter of the mounting body 9 is reduced, and the mounting body 9 is brought into close contact with the knob 3 via the non-slip member 12. The mounting portion 6 is fixed to the knob 3 by sufficiently tightening the mounting body portion 9 to the knob 3.

The mounting body 9 is formed with an engaging portion 14 that engages with the front end of the knob 3 in the direction of the rotation axis 16. In the present embodiment, the engaging portion 14 has a collar shape extending from the peripheral edge of the mounting main body portion 9 toward the center. By tightening the tightening bolt 11 in a state where the engaging portion 14 is engaged with the front end portion of the knob 3, the door lever 1 can be attached to an appropriate position with respect to the knob 3. When the knob 3 is a general-purpose product or a standard product, the distance between the front end of the knob 3 and the door 2 is generally fixed. Therefore, when the door lever 1 is attached to an appropriate position with respect to the knob 3, the door lever is used. 1 will be attached to the door 2 at an appropriate position. The appropriate position of the door lever 1 with respect to the door 2 is a position where the maximum value D of the separation distance between the lever portion 7 and the door 2, which will be described later, is within a predetermined range.

The lever portion 7 is provided to rotate integrally with the mounting portion 6. In the present embodiment, the lever portion 7 is integrally formed with the mounting portion 6.

As shown in FIG. 4, the lever portion 7 is displaced to one side in the rotation axis 16 direction (opposite side to the door 2 in the present embodiment) as it is separated from the rotation axis 16, and is displaced to one side in the rotation direction (the present embodiment). Then, the curved surface 7a (displacement surface) that is displaced toward the other side in the rotation axis 16 direction (door 2 side in the present embodiment) as it progresses in the left rotation direction), and the other side in the rotation axis 16 direction (door in the present embodiment). 2 side). Further, the maximum value D of the separation distance between the lever portion 7 and the door 2 is 60 mm to 80 mm. The curved surface 7a (displacement surface) is formed in the portion of the lever portion 7 where the distance from the door 2 becomes the maximum value D. When the knob 3 is a general-purpose product or a standard product, the distance D1 between the front end of the knob 3 and the door 2 is approximately 60 mm to 70 mm, so that the surface of the engaging portion 14 on the knob 3 side is The difference D2 between the position in the rotation axis 16 direction and the position in the rotation axis 16 direction of the lever portion 7 is D-D1 (= 0 mm to 20 mm). The cross-sectional shape of the surface 7b of the lever portion 7 opposite to the door 2 is not particularly limited, but in the present embodiment, it is formed substantially parallel to the door 2.

As described above, the lever portion 7 has a curved surface 7a that is displaced to the opposite side of the door 2 as the lever portion 7 is separated from the rotation axis 16, and the maximum value D of the separation distance between the lever portion 7 and the door 2 is the above-mentioned preferable value. By being there, the elbow can be deeply inserted between the door 2 and the lever portion 7. By inserting the elbow deeply, the lever portion 7 can be easily pulled toward you with the elbow or upper arm to open the door 2. Moreover, since the curved surface 7a of the lever portion 7 is a curved surface that is displaced toward the door 2 as it advances in the counterclockwise direction, the elbow or upper arm portion is in close contact with the curved surface 7a, and when the lever portion 7 is pulled toward the front, the elbow portion 7 is in close contact with the curved surface 7a. The lever portion 7 can be easily and surely pulled toward you without the elbow or upper arm portion slipping from the lever portion 7.

Further, as shown in FIG. 8, the lever portion 7 is curved in one of the rotation directions (in the present embodiment, the left rotation direction) as the distance from the rotation axis 16 increases. Therefore, as shown by the solid line in FIG. 8, the door lever 1 is attached to the knob 3 so that the lever portion 7 is convexly curved upward while the lever portion 7 and the knob 3 are rotated to the maximum counterclockwise. For example, as compared with the case where the lever portion 7 is not curved, the operation of pulling the lever portion 7 toward the elbow or the upper arm portion can be smoothly performed.

A lightweight material (resin material in this embodiment) is used for the lever portion 7 and the mounting main body portion 9, and a lightening portion 21 is provided inside the lever portion 7 for further weight reduction of the lever portion 7. .. As shown in FIGS. 3 and 5, the lightening portion 21 is open to the bottom portion of the lever portion 7, and a plurality of lightening portions 21 are formed in the longitudinal direction of the lever portion 7. Since the lightening portion 21 is formed in this way, the rib between the lightening portions 21 acts as a reinforcing material, so that it is possible to secure the necessary strength while reducing the weight of the lever portion 7. It will be easier. When the lever portion 7 is heavy, if a long time has passed since the door lever 1 was attached to the knob 3, the door lever 1 may rotate relative to the knob 3 or fall off from the knob 3 due to the weight of the lever portion 7. Will increase. Therefore, it is desirable that the weight of the lever portion 7 is small.

Finally, as shown in FIG. 8, the state where the door lever 1 is attached to the knob 3, that is, the rotation position of the knob 3 is the closed position (the rotation position where the latch bolt 17 engages with the engaged portion 19 of the door frame 18). The tip of the lever portion 7 is arranged at a position higher than the center of rotation (rotation axis 16), and the rotation position of the knob 3 is in the open position (the latch bolt 17 retracts from the engaged portion 19 of the door frame 18). The door using the door lever 1 attached to the knob 3 of the door 2 so that the tip of the lever 7 is arranged at substantially the same height as the center of rotation (rotation axis 16) when the door is in the rotation position). The outline of the procedure for opening 2 will be described.

First, as shown by the two-dot chain line in FIG. 8, when the rotation position of the knob 3 is in the closed position, the lever portion 7 is pushed down by the user's elbow (preferably the left elbow), and as shown in the solid line in the figure. Then, rotate it to the left as much as possible to set the rotation position of the knob 3 to the open position.

Next, while holding the state in which the lever portion 7 is pushed down, as shown in FIG. 2, the elbow is inserted between the door 2 and the lever portion 7, and the lever portion 7 is pulled toward the front by the elbow or the upper arm portion. At this time, since the elbow or upper arm portion follows the curved surface 7a formed on the lever portion 7, the elbow or upper arm portion can be surely pulled toward the lever portion 7 to open the door 2 without slipping from the lever portion 7. can. After opening the door 2 to some extent, it is possible to pass through the doorway by further opening the door 2 using a part other than the palm.

As described above, by attaching the door lever 1 to the knob 3 of the door 2, it is not necessary to touch the knob 3 and the door lever 1 with the palm when opening the door 2, and as a result, infection of the virus transmitted through the knob 3 is prevented. Can be done.

<Other Embodiment 1>
In the above-described embodiment, the curved surface 7a formed on the door 2 side of the lever portion 7 rotates while being displaced to one side (opposite to the door 2) in the rotation axis 16 direction as the distance from the rotation axis 16 increases. It was displaced to the other side (door 2 side) in the rotation axis direction as it proceeded in one direction (left rotation direction), but instead of the curved surface 7a, the first as shown in FIGS. 10 to 12. Surface 71 (first displacement surface) and second surface 72 (second displacement surface) may be formed on the door 2 side of the lever portion 7A. The first surface 71 is a surface that is displaced toward one side (opposite the door 2) of the rotation axis 16 as the distance from the rotation axis 16 increases, and the second surface 72 rotates more than the first surface 71. It is a surface formed at a position away from the axis 16 and displaced to the other side (door 2 side) in the rotation axis 16 direction as it advances in one of the rotation directions (left rotation direction). In the lever portion 7A, the second surface 72 is formed at a portion where the separation distance from the door 2 becomes the maximum value D. Even with the door lever 1B having such a lever portion 7A, the elbow can be deeply inserted between the door 2 and the lever portion 7A, and when the lever portion 7A is pulled toward, the elbow or the upper arm portion is formed in the lever portion 7A. Since it is along the second surface 72, the elbow or upper arm can be reliably pulled toward the lever portion 7A to open the door 2 without slipping from the lever portion 7A.

<Other Embodiment 2>
In the above-described embodiment, the case where the door lever 1 is attached to the knob 3 of the left-opening door 2 has been described as an example, but the knob 3 of the right-opening door 2A has been described above, for example, as shown in FIG. The door lever 1 or the door lever 1A having a symmetrical shape can be attached and used with the door lever described in "Other Embodiment 1".

The present invention can be applied to a door lever that can be attached to a door knob (grip ball) to form a lever-type handle.

1,1A, 1B Door lever 2,2A Door 3 Knob 6 Mounting part 7,7A Lever part 7a Curved surface (displacement surface)
16 Rotating axis 21 Lightening part 71 First surface (first displacement surface)
72 Second surface (second displacement surface)

Claims (6)

A mounting part that can be rotated and integrated with the door knob,
A lever portion provided integrally with the mounting portion and a lever portion
It is a door lever equipped with
The lever portion displaces to one side in the rotation axis direction as it moves away from the rotation axis, and displaces to the other side in the rotation axis direction as it advances to one of the rotation directions. Have in
The lever portion is curved in one direction in the rotation direction without being curved in the other direction in the rotation direction as the other side in the rotation direction is separated from the rotation axis when viewed from the rotation axis direction.
A door lever that features that. A mounting part that can be rotated and integrated with the door knob,
A lever portion provided integrally with the mounting portion and a lever portion
It is a door lever equipped with
The lever portion is
A first displacement surface that displaces to one side in the direction of the axis of rotation as it moves away from the axis of rotation,
A second displacement surface formed at a position farther from the rotation axis than the first displacement surface and displaced to the other side in the rotation axis direction as it advances in one direction of rotation.
On the other side of the axis of rotation ,
The lever portion is curved in one direction in the rotation direction without being curved in the other direction in the rotation direction as the other side in the rotation direction is separated from the rotation axis when viewed from the rotation axis direction.
A door lever that features that. In the door lever according to claim 1 or 2.
The lever portion is a door lever characterized in that the lever portion is curved in one of the rotation directions as the distance from the rotation axis is increased. In the door lever according to any one of claims 1 to 3, the door lever
A plurality of lightening portions are provided in the lever portion, and a plurality of lightening portions are provided .
The lightening portion is open on one side in the rotation direction of the lever portion.
A door lever that features that. The door lever according to any one of claims 1 to 4, wherein the mounting portion is attached to the knob of the door, and the maximum value of the separation distance between the door and the lever portion is 60 mm to 80 mm. A door lever characterized by being there. The door lever according to any one of claims 1 to 5, wherein the mounting portion is attached to the knob of the door, and when the rotation position of the knob is in the closed position, the tip end portion of the lever portion. A door lever characterized in that the attachment portion is attached to the knob so that the attachment portion is arranged at a position higher than the rotation axis.

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