JP4918691B2 - Doorknob safety device - Google Patents

Description

  The present invention relates to a door knob safety device that is attached to a handle portion of a door knob and prevents fingers from being caught in a gap between the handle portion and a door knob body.

  For example, as shown in FIG. 7, the door knob 52 of the compartment door 51 is often a latch type with a handle 53. The handle 53 is returned by a spring in the door knob body 54. When the door 51 is opened and closed, a strong force may be required to open and close the door 51 due to a pressure difference between the inside and outside of the compartment.

As a technique related to a safety device attached to such a door knob, as shown in, for example, Japanese Patent Application Laid-Open No. 2002-121954 “Door Stopper” in Patent Document 1, when the door is placed in a gap between the floor and the lower edge of the door, A wedge portion that has an inclined surface that presses against the edge and maintains the door in an open state, a hook portion that can be hooked on the hinge of the door, and when the hook portion is hooked on the hinge There is proposed a door stopper that is integrally provided between a door side surface and a door frame, and is integrally provided with a hinge clamping portion for maintaining the door in an open state at a predetermined angle or more.
JP 2002-121954 A

  In this way, in the latch type door knob 52, the handle 53 is returned by a spring, so that the handle 51 is held with a strong force and the door 51 is opened and closed. At times, as shown in FIG. 7B, there is a problem that the finger F is easily caught in the gap (the arrow X line portion) between the doorknob body 54 and the handle portion 53 by mistake.

  The “door stopper” of Patent Document 1 is a safety device attached to the door knob, but is a technique for fixing the door, and is not a technique for preventing fingers from being caught in the gap between the handle portion and the door knob body.

  The present invention has been developed to solve such problems. That is, the object of the present invention is to easily attach to an existing door knob to prevent the fingers from being caught between the door knob body and the handle when the door is opened and closed, and to improve safety when opening and closing the door. The object is to provide a doorknob safety device.

According to the present invention, a plate-like main body (2) having elasticity and a handle retaining hole (3) opened so as to penetrate substantially the center of the plate-like main body (2) are provided. ) To prevent the finger (F) holding the handle (53) of the door knob (52) from moving toward the door knob body (54) when the door is opened or closed. There is provided a doorknob safety device characterized in that the handle latching hole (3) can be inserted in a removable manner.
For example, the handle retaining hole (3) may be formed so that the cross section of the inner peripheral edge of the handle retaining hole (3) is substantially curved so that it can be easily inserted into and removed from the handle portion (53). preferable.

The handle latching hole (3) is formed with a plurality of recesses (3a) on the inner periphery of the handle latching hole (3) in order to latch the handle part (53) having different outer diameters (D1, D2). can do.
The handle latching hole (3) extends in the insertion direction along the handle latching hole (3) in the plate-like main body (2) so that the handle part (53) that latches the handle latching hole does not rattle. It is preferable to form the edge (4) so as to stand up.

In the invention of the above configuration, the door knob safety device (1) is inserted in the middle of the handle portion (53) of the door knob (52) so that the handle portion (53) is gripped when the door (51) is opened and closed. The finger (F) is prevented from moving toward the doorknob body (54). Therefore, it is possible to prevent the finger (F) from being caught in the gap between the door knob body (54) and the handle portion (53).
Since the doorknob safety device (1) is composed of a resilient plate-like body (2), the handle latching hole (3) can be easily inserted and removed in the middle of the handle portion (53) of the doorknob (52). Can be included. In particular, because of its simple structure, it can be easily attached to an existing door knob (52). Further, even if there is some difference between the outer diameter of the handle portion (53) and the inner diameter of the handle latching hole (3) of the door knob safety device (1), the plate-like body (2) has elasticity. So it can be easily installed.

  The handle latching hole (3) formed so that the cross section of the inner peripheral edge of the handle latching hole (3) has a substantially curved shape can be easily inserted into the handle part (53). Moreover, it can be easily extracted.

The handle latching hole (3) having a plurality of recesses (3a) formed on the inner periphery can latch the handle (53) having different outer diameters (D1, D2) according to the position.
Further, when the edge (4) is formed on the plate-like main body (2) so as to rise in the insertion direction along the handle retaining hole (3), this edge (4) is the handle (53). It can be hung so that it does not rattle.

  The doorknob safety device of the present invention is a device that can attach a hook-shaped safety device to an existing doorknob, and can prevent the fingers from being caught between the doorknob body and the handle when the door is opened and closed.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1A and 1B show a doorknob safety device according to a first embodiment, where FIG. 1A is a front view and FIG. 1B is a cross-sectional view.
The door knob safety device 1 of the present invention includes a plate-like main body 2 having elasticity, and a handle latching hole 3 opened so as to penetrate substantially the center of the plate-like main body 2. The plate-like main body 2 is an elastic material made of rubber or soft rigid resin. In the illustrated example, a substantially rectangular shape is shown, but it is of course possible to form it in a circular shape, a polygonal shape or other shapes.

  The handle retaining hole 3 has an inner diameter that is substantially the same as the outer diameter of the handle portion 53 so that the handle portion 53 can be inserted into and removed from the handle portion 53 of the door knob 52. Further, in the illustrated example, the handle latching hole 3 is formed in a substantially square shape, but this is to match the cross-sectional shape of the handle portion 53 of the door knob 52. For example, if the cross-sectional shape of the handle portion 53 is circular, the handle retaining hole 3 is also formed in a circular shape.

FIG. 2 is a sectional view showing a state in which the door knob safety device of the present invention is mounted on the door knob.
In the door knob safety device 1 configured as described above, since the plate-like main body 2 has elasticity, the handle latching hole 3 can be easily inserted in the middle of the handle portion 53 of the door knob 52 so as to be freely inserted and removed. Therefore, it can be easily attached to the existing door knob 52. Further, even if there is a slight difference between the outer diameter of the handle portion 53 and the inner diameter of the handle latching hole 3 of the door knob safety device 1, the plate-like main body 2 has elasticity and can be easily mounted. .

3A and 3B are explanatory views showing a state in which the door knob safety device according to the present invention is mounted. FIG. 3A is a state in which the handle portion is pulled forward, and FIG. 3B is a diagram in which fingers are protected when the handle portion returns to the door knob body side. It is in a state of being.
The door knob safety device 1 of the present invention is inserted into the handle portion 53 in the middle, so that when the door 51 is opened and closed, the finger F holding the handle portion 53 of the door knob 52 moves to the door knob body 54 side. Can be prevented. Therefore, it is possible to prevent the fingers F from being caught in the gap between the door knob main body 54 and the handle portion 53.

4A and 4B show a modification of the doorknob safety device of Embodiment 1, wherein FIG. 4A is a front view and FIG. 4B is a cross-sectional view.
The modified example of the doorknob safety device 1 is formed so that the cross section of the inner peripheral edge of the handle latching hole 3 has a substantially curved shape. The handle retaining hole 3 formed in this way is easily inserted into and removed from the handle portion 53. The cross section of the inner peripheral edge of the handle retaining hole 3 is not limited to a substantially curved shape as shown in the figure, and may be inclined in one direction so as to be easily inserted into the handle portion 53.

FIGS. 5A and 5B show a doorknob safety device of Example 2, wherein FIG. 5A is a front view and FIG. 5B is a cross-sectional view.
In the door knob safety device 1 of Example 2, a plurality of recesses 3 a are formed on the inner periphery of the handle retaining hole 3. In the handle latching hole 3 formed in this way, the handle 53 having different outer diameters D1 and D2 can be latched. For example, as shown in FIG. 5 (a), the handle retaining hole 3 with a long diameter D1 whose arrow line is shown in the vertical direction is inserted into the handle portion 53 with a long diameter. Further, by inserting the handle retaining hole 3 with the short diameter D2 with the arrow line in the direction of the inclination into the handle portion 53 with the short diameter D2, it is possible to insert the handle portion 53 without any gap. it can. In the illustrated example, the two types of handle portions 53 are shown according to the outer diameter. However, the present invention is not limited to these two types, and the handle latching is made so that the length of the diameter matches three or more types. Hole 3 can be formed.

6A and 6B show a doorknob safety device of Embodiment 3, wherein FIG. 6A is a front view and FIG. 6B is a cross-sectional view.
In the door knob safety device 1 of Example 3, the edge 4 was formed in the plate-like main body 2 so as to rise in the insertion direction along the handle retaining hole 3. Since the handle latching hole 3 formed in this manner wraps the latched handle part 53, the doorknob safety tool 1 does not rattle against the handle part 53. In the illustrated example, the edge 4 is formed only on one surface side of the plate-like main body 2, but it is of course possible to form it on both surfaces.

  In the present invention, by simply attaching to the existing door knob 52, the door knob main body 54 and the handle portion 53 when the door 51 is opened and closed prevent the fingers F from being caught, thereby improving the safety when the door is opened and closed. Of course, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  The doorknob safety device of the present invention can be used for various doors other than the doorknob 52 of the compartment door 51.

BRIEF DESCRIPTION OF THE DRAWINGS The doorknob safety device of Example 1 is shown, (a) is a front view, (b) is sectional drawing. It is sectional drawing which shows the state which mounts | wears with the doorknob safety device of this invention to a doorknob. It is explanatory drawing which shows the mounting state of the safety device for doorknobs of this invention, (a) is the state which has pulled the handle part forward, (b) has protected the finger when the handle part returns to the doorknob main body side. State. The modification of the safety device for doorknobs of Example 1 is shown, (a) is a front view, (b) is sectional drawing. The doorknob safety device of Example 2 is shown, (a) is a front view, (b) is sectional drawing. FIG. 3 shows a doorknob safety device of Example 3, wherein (a) is a front view and (b) is a cross-sectional view. It is explanatory drawing which shows the conventional door knob, (a) is the state which has pulled the handle part forward, (b) is the state where fingers were pinched when the handle part returned to the door knob body side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Doorknob safety device 2 Plate-shaped main body 3 Handle latch hole 3a Recess of handle latch hole 4 Edge 51 Door 52 Door knob 53 Handle 54 Door knob body

Claims (4)

A plate-like body (2) having elasticity;
A handle latching hole (3) opened so as to penetrate substantially the center of the plate-shaped main body (2),
In order to prevent the finger (F) holding the handle (53) of the door knob (52) from moving toward the door knob body (54) when the door (51) is opened and closed, the handle (53 The door knob safety device is configured such that the handle retaining hole (3) can be inserted / removed in the middle of the handle). The handle latching hole (3) is formed so that the cross section of the inner periphery of the handle latching hole (3) is substantially curved so that it can be easily inserted into and removed from the handle part (53). The door knob safety device according to claim 1. The handle latching hole (3) is formed with a plurality of recesses (3a) on the inner periphery of the handle latching hole (3) in order to latch the handle part (53) having different outer diameters (D1, D2). The door knob safety device according to claim 1, wherein: The handle latching hole (3) extends in the insertion direction along the handle latching hole (3) in the plate-like main body (2) so that the handle part (53) that latches the handle latching hole does not rattle. The door knob safety device according to claim 1, wherein an edge portion (4) is formed so as to stand up.

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