JPS6341489Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a doorknob cleanliness maintenance device, more specifically, a new part of the thin resin film wrapped around the knob is sent out each time the door is opened and closed, so that the knob is always covered with a clean resin film. This invention relates to a device for maintaining the cleanliness of a doorknob.

In general, doorknobs that are used by many people get dirty easily, and there is a risk of bacterial contamination, especially in hospitals. Therefore, in the past, methods have been adopted, such as manually brushing and cleaning the knobs, or covering the knobs and replacing them as appropriate.

However, both methods require manpower,
It is practically difficult to clean and replace frequently, and when people come in and out continuously, dirt from the previous person inevitably remains, so this is not an essential solution.

The present invention was developed in view of the current situation, and its purpose is to provide a doorknob cleanliness maintenance device in which the knob is always covered with a clean resin film as the door is opened and closed. .

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, which are examples of the present invention.

In Figure 1, 1 is a door, a front plate 2, a back plate 3
A space 4 is formed between them. Reference numeral 6 denotes a knob, which is attached to the front surface side of the top plate 2, and has a guide hole 7 formed in its axial center to pass through from front to back. Further, an opening 5 is formed in the attachment portion of the knob 6, and a cutter 8 is installed. 11 is a delivery roll, 12 is a take-up roll, and 13 is a motor, all of which are housed in the space 4 of the door 1. The motor 13 receives signals from a limit switch, photoelectric switch, etc. (not shown) that detects the opening and closing of the door 1. The winding roll 12 is activated for a certain period of time to rotate the winding roll 12.

10 is a cylindrical long material made of a thin resin film, which is folded flat and placed on the delivery roll 1 in advance.
1, is led out from the guide hole 7 of the knob 6, is turned over at the exit side of the guide hole 7, wraps around the surface of the knob 6, and is continuously cut on one side with a cutter 8. At the same time, it is introduced into the space 4 through the opening 5 and wound onto a winding roll 12 .

The movement of this long material 10 is schematically shown as follows.
2 and 3, the flattened long material 10 is further focused in the vertical direction at the guide hole 7, and is turned upside down at the exit side of the guide hole 7.
Thereafter, when one side is continuously cut in the longitudinal direction by the cutter 8, the elongated material 10 is focused from its apparent cylindrical shape to one side, and is introduced into the space 4 from the opening 5.

That is, in the above configuration, the motor 13 is activated for a certain period of time each time the door 1 is opened or closed, and the take-up roll 12 is driven to rotate clockwise in FIG. 11 , slides on the surface of the knob 6 and is wound onto the winding roll 12 .

Therefore, the surface of the knob 6 is coated with a new elongated material 10 (resin film) as the door 1 is opened and closed, and is always kept clean. Moreover, only when the remaining amount of the elongated material 10 becomes small, it is only necessary to replace the delivery roll 11 and attach a new elongated material 10, which is extremely simple.

Note that the present invention is not limited to the above-mentioned embodiments, and can be modified in various ways within the scope of the gist.
For example, if the knob 6 is rotary, a gear is rotated based on the rotation, and the teeth of the gear are used to hold the long material 10.
may be moved. Although not shown in FIG. 1, the cleanliness maintenance device according to the present invention is also installed on a knob provided on the front surface of the back plate 3 of the door 1.

As is clear from the above explanation, according to the present invention, the knob is always covered with a clean resin film when the door is opened or closed, and if applied especially to hospitals, etc., it will give a great sense of security to those entering and exiting. becomes. Moreover, since the resin film is moved automatically, there is no need for manual intervention as in the past.

[Brief explanation of the drawing]

FIG. 1 is a horizontal sectional view showing an embodiment of the doorknob cleanliness maintenance device according to the present invention, and FIGS. 2 and 3 are perspective views schematically showing the movement of a long material. 1...Door, 2...Top plate, 3...Back plate, 4...
Space portion, 5...Opening, 6...Knob, 7...Guide hole, 8...Cut, 10...Long material, 11...Delivery roll, 12...Take-up roll, 13...Motor.

Claims (1)

[Scope of utility model registration request] A guide hole penetrating back and forth is formed approximately at the axial center of the doorknob, and a delivery roll and a take-up roll equipped with a rotational drive means are provided in the space between the front plate and the back plate of the door. An opening is formed in the attachment part of the knob, and a cutter is provided, and a cylindrical long material made of a thin resin film is folded flat and wound around a delivery roll, and this long material is passed through the guide hole of the knob to the outside. The long material is taken out and reversed on the exit side to wind up the knob, and one side of the long material is continuously cut in the longitudinal direction using the cutter, and the long material is introduced into the space through the opening. A doorknob cleanliness maintenance device characterized in that the doorknob is automatically wound onto a take-up roll by operating a rotary drive means in conjunction with the opening/closing operation of the door.