JP2511427Y2 - Door knob - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a door knob, and more specifically, to a knob body that is a grip and a lever that assists Sarai to rotate the knob body around an axis. Is provided for.

[Prior Art] Door knobs of various shapes are used depending on the appearance of the door and the application of the place.

By the way, as a knob used for a door inside a building, as shown in FIG. 5, a knob main body 1 having a spherical shape or a cylindrical shape is often used.

In such a knob, the knob body 1 serving as a grip is rotated around the axis 2 of the knob body 1 to open and close the door 4.

[Problems to be Solved by the Invention] However, for example, a person who has a difficulty in gripping the hand 3 due to an injury or the like, or a small child having a small hand opens and closes the door 4 by using the knob body 1 described above. In this case, the knob body 1 cannot be easily rotated, which may hinder daily life.

The purpose of the present invention is to solve the above problems.

[Means for Solving the Problems] The door knob according to claim 1 of the present invention is a door knob that opens and closes a door by rotating a knob body that is a grip around an axis. A hole is bored in a direction orthogonal to the axis of, and a lever for rotating the knob body is attached to the hole so as to be retractable.

The door knob according to claim 2 is a door knob that opens and closes a door by rotating a knob body that is a grip around an axis,
A hole is bored from the outer surface of the knob body in a direction orthogonal to the axis of the knob body, and a tubular body having both ends opened is fitted into the hole.
The rod-shaped lever of this cylindrical body is loosely inserted, and an elastic member in a biasing state for pressing the lever to the outside of the knob body is mounted in the hole, and engages with the lower part of the peripheral surface of the lever. A guide groove is formed on the peripheral wall of the cylindrical body and extends in the longitudinal direction to guide the lever engaging piece, and the engaging piece is locked at the proximal end of the guide groove. Then, a locking groove for positioning the lever in the hole in the housed state is formed.

[Operation] According to the door knob of claim 1 of the present invention, the lever mounted so as to project from the outer surface in a state orthogonal to the axis of the knob body is rotated in a predetermined direction with the tip end side of the lever lightly attached. As a result, the rotation moment applied to the knob body is increased, and the knob body can be easily rotated around the axis. Further, according to the door knob of claim 1,
A lever that rotates the knob body is attached to the hole that is drilled from the outer surface of the knob body in a direction orthogonal to the axis of the knob body so that it can be retracted, so Can be projected from the hole of the knob body, or the lever can be housed inside the hole of the knob body.

Further, according to the door knob of claim 2, the lever is projected from the outer surface of the knob body by engaging the engaging piece of the lever with the end of the guide groove of the cylindrical body fitted in the hole. Then, the lever engaging piece engages with the locking groove of the cylindrical body, and the lever is housed inside the hole.

[Example] An example of a door knob relating to the door knob of the present invention will be described with reference to FIG.

Reference numeral 5 in the drawing denotes a knob body which is formed in a spherical shape and rotates around the axis 6. The knob body 5 is provided with a circular hole 7 in the direction orthogonal to the axis 6 of the knob body 5 from the outer surface, and a female screw 8 is provided on the inner surface on the bottom side of the hole. A lever 9 is inserted in this hole 7.

The lever 9 is a rod-shaped member having a diameter slightly smaller than the hole 7 of the knob main body 5, and a male screw 9a is provided on the outer circumference on the base end side thereof. Then, by screwing the male screw 9a and the female screw 8 of the hole 7, the lever 9 is attached so as to project from the outer surface of the knob body 5.

To attach the lever 9 to the knob body 5 having the above configuration,
By inserting the lever 9 into the hole 7 of the knob body 5, rotating it around the axis of the lever 9 and screwing the male screw 9a into the female screw 8 of the hole 7, the lever 9 is moved to the axis line 6 of the knob body 5. It is attached so as to project from the outer surface in a state orthogonal to. Then, by simply putting a hand on the tip side 9b of the lever 9 and turning it in a predetermined direction, the rotation moment can be increased and the knob body 5 can be easily rotated about the axis 6 to open and close the door 10. .

Further, in order to remove the lever 9 from the knob body 5, it is possible to easily remove it from the knob body 5 simply by rotating the lever 9 around the axis 6 in the opposite direction to when the lever 9 is attached.

As can be easily understood from the above description, in the door knob of this example, since the lever 9 is attached so as to project in the direction orthogonal to the axis 6 of the knob body 5, the tip of the lever 9 is attached. It is possible to easily rotate the knob body 5 to open and close the door simply by putting a hand on the side 9b and turning it in a predetermined direction.

2 to 4 show a first embodiment of the present invention. The same components as those shown in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.

The door knob of the present embodiment has a tubular body 11 fitted in a hole 7 formed in the direction orthogonal to the axis 6 of the knob body 5 from the outer surface of the knob body 5 formed in a spherical shape, and the tubular body 11. The lever 12 is loosely inserted into the hole 7, and the coil spring (elastic member) 13 is mounted inside the hole 7 while being biased.

The tubular body 11 is formed of plastic or the like into a cylindrical shape having a diameter slightly smaller than the hole 7 of the knob body 5, and is formed with both ends open. On the peripheral wall 14 of this cylindrical body 11,
A guide groove 16 extending along the axis 15 of the cylindrical body 11 is formed. A continuous groove 17 extending obliquely with respect to the axis 15 is formed from the base end of the guide groove 16 toward the lower end 11a side of the cylindrical body 11, and the continuous groove 17 further extends from the continuous groove 17 to the cylindrical body 11. A locking groove 18 is formed that extends along the axis 15 and along the upper end 11b.

The lever 12 is a rod-shaped member having a diameter slightly smaller than the inner diameter of the cylindrical body, and a protrusion (engaging piece) 20 is formed on the lower portion of the peripheral surface 19 thereof. The width of the engagement piece 20 is set to be slightly narrower than the groove widths of the guide groove 16, the locking groove 18 and the continuous groove 17 of the cylindrical body 11 described above.

The coil spring 13 is used by connecting one end of the coil spring 13 on a cylindrical pedestal 21 having the same diameter as the cylindrical body 11.

To assemble the door knob with the above structure, first,
Insert lever 12 inside 11. At that time, the protrusion 20 of the lever 12 is engaged between the guide grooves 16 of the cylindrical body 11. As a result, the lever 12 is movably supported inside the cylindrical body 11 in the direction of the axis 15. Next, the pedestal 21 to which one end of the coil spring 13 is connected is attached to the lower end 11a of the cylindrical body 11 and the pedestal 21 and the lever.
The coil spring 13 is bonded to the lower surface of 12 with an adhesive or the like so that the coil spring 13 is positioned. As a result, the coil spring 13 is in a biased state and pushes the lever 12 upward. Then, the cylinder 11 with the lever 12 and the coil spring 13 attached is
By fitting into the hole 7 of the knob body 5, a door knob having the lever 12 attached to the knob body 5 is formed.

In the door knob, the lever 12 in a state of protruding from the outer surface of the knob body 5 can be housed inside the hole 7 of the knob body 5. That is, as shown in FIG. 3, the lever 12 protruding from the outer surface of the knob main body 5 is pressed to the outside of the knob main body 5 by the restoring force of the coil spring 13, whereby the lever 12 is pressed. The protrusion 20 is guided by the guide groove 16 and moves toward the tip 16a side, and is in a state of being locked at the tip 16a.

When the lever 12 is housed in the hole 7 of the knob body 5, once the head 12a of the lever 12 is pushed into the hole 7 and then the hand is released, as shown in FIG. , The protrusion 20 of the lever 12 is guided by the guide groove 16 and the base end 11
After moving to the a side and passing through the continuous groove 17, the locking groove 18
Stops at and becomes locked. This allows the lever
12 is stored inside the hole 7 of the knob body 5.

Therefore, the door knob of the present embodiment has the same effects as those shown in FIG. 1, and the lever 12 is housed inside the hole 7 of the knob body 5 so as to have a spherical shape which is normally used. Since it can also be used as the knob main body 5, it can have a structure having excellent functionality as compared with the conventional door knob.

[Advantage of the Invention] As described above, in the door knob according to claim 1 of the present embodiment, the lever is attached to the knob body so as to be retractable in the direction orthogonal to the axis of the knob body. When it is in the projected state, the knob body can be easily rotated by simply putting your hand on the tip of the lever and turning it in the specified direction.Use it effectively as an aid when rotating the knob body. You can Further, according to the door knob of claim 1, the lever for rotating the knob body is removably attached to the hole formed in the direction perpendicular to the axis of the knob body from the outer surface of the knob body. Depending on the place of use and the preference of the user, the lever can be projected from the hole of the knob body, or the lever can be stored inside the hole of the knob body. When it is in the protruding state,
As mentioned above, you can easily rotate the knob body,
On the other hand, when the lever is stored inside the hole of the knob body, it can also be used as a knob body with a spherical shape that is normally used, and the structure has greatly improved the function compared to the conventional knob body. Can be

Further, in the door knob according to claim 2, since the lever is attached in the direction orthogonal to the axis of the knob body, the same effect as that of the door knob according to claim 1 can be obtained, and the lever is attached. Stored inside the hole in the knob body,
It can also be used as a knob body having a commonly used spherical shape, and can have a structure in which the function is significantly improved as compared with the conventional knob body.

[Brief description of drawings]

1 to 4 show an example of a door knob according to the present invention, FIG. 1 is a perspective view showing an example of a door knob according to the present invention, and FIGS. 2 to 4 are present inventions. FIG. 2 is a partial sectional perspective view showing the internal structure of a door knob, and FIG. 3 is a partial sectional front view showing a state in which a lever projects from the knob body. FIG. 4 is a partial sectional front view showing a state where the lever is housed inside the knob body, FIG.
The figure is a perspective view showing a conventional knob body. 5 ... Knob body, 6 ... Knob body axis, 7 ... Hole, 9
...... Lever, 10 …… Door, 11 …… Cylinder, 12 …… Lever,
13 ... Coil spring (elastic member), 16 ... Guide groove, 18 ...
… Locking groove, 19 …… Lever peripheral wall, 20 …… Projection (engaging piece).

Claims (2)

(57) [Scope of utility model registration request] Claim: What is claimed is: 1. A door knob for opening and closing a door by rotating a knob body as a grip about an axis, wherein a hole is formed from an outer surface of the knob body in a direction orthogonal to an axis of the knob body. A door knob, in which a lever for rotating the knob body is attached to the door so that it can be retracted. 2. A door knob that opens and closes a door by rotating a knob body that is a grip around an axis, and a hole is formed from an outer surface of the knob body in a direction orthogonal to an axis of the knob body. Is inserted into the tubular body, and a rod-shaped lever is loosely inserted in the tubular body, and an elastic member in a biased state for pressing the lever to the outside of the knob body is mounted in the hole. An engaging piece is formed on the lower part of the peripheral surface of the lever, and a guide groove extending in the longitudinal direction to guide the engaging piece of the lever is formed on the peripheral wall of the cylindrical body. A door knob characterized in that a locking groove is formed at a base end of the groove to lock the engaging piece and position the lever in the hole.