JPS5853267B2 - Device for detecting the insertion and removal of containers, etc. in automatic refrigerator management equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that automatically detects the loading and unloading of food and drink in a refrigerator installed in a guest room of a hotel or inn, for example.

The food and drinks in the refrigerators installed in hotel and inn guest rooms are freely taken out and eaten by guests in the room, but the guest room staff will go to each guest room to check what and how much they have eaten. You won't know unless you check inside the refrigerator.

Therefore, inspection is not only troublesome but also requires a lot of manpower.

The present invention is intended to solve these difficulties, and will be described in detail below based on illustrated embodiments.

A receiver 3 installed in the refrigerator 1, a peripheral wall 2 provided on the outer periphery of the receiver 3, a spring 4 that supports the receiver 3, a detector 5 that is turned on and off by vertical movement of the receiver 3, and a support. It consists of a body 21.

The peripheral wall 2 is box-shaped with a front opening so that parts 6 such as beer bottles and juice bottles can be taken in and out from the entrance 2'.

The peripheral wall 2 may partition the inside of the refrigerator 1 and surround the receiver 3 attached to the refrigerator 1, or the receiver 3 itself may be formed into a mouth shape, for example, and this vertical plate portion may be used as the peripheral wall.

The receptor 3 has a plate shape whose width narrows from the front to the rear,
Insertion shafts 7 and 8 protruding from both front sides are rotatably inserted into side plates 9 and 10 of the box-shaped peripheral wall 2, so that the rear end side can move up and down.

The spring 4 is constructed by winding a wire 14 such as a piano wire several times around a winding shaft 13 attached to the back wall 12 of the peripheral wall 2 along the front-rear direction of the refrigerator, and wrapping one end 15 of the wire 14 as shown in FIG. The wire rod 14 is locked and fixed in a groove 17 formed on the end surface 16 of the winding shaft 13, and the other end of the wire 14 is made to protrude upward in a direction orthogonal to the winding shaft 13 to form a support part 18. It is designed to support the receiver 3 by being locked to the locking protrusion 11.

Furthermore, this spring 4 can rotate the wire rod 1 wound around the winding shaft 13 by rotating the winding shaft 13 forward or backward to change the rotation angle.
The number of turns 4 increases or decreases, and as the number increases, the elastic strength of the support portion 18 increases, and as it decreases, the elastic strength decreases.

The detector 5 is a reed switch, and is attached to a printed circuit board 19 erected behind a back wall 12 provided at the back of the peripheral wall 2.

The detector 5 turns on and off when the receiver 3 moves up and down as the article 6 is taken in and taken out, and the magnet 20 attached thereto also moves up and down.

Reference numeral 21 denotes a shaft-shaped support provided between the side plates 9 and 10 of the peripheral wall 2, which is raised higher than the receiver 3 and supports the front end side of the article 6 placed on the receiver 3, so that the load of the article is transferred to the receiver 3. This is to ensure that it is applied to the tip side.

As described above, the present invention supports the receiver 3 with the spring 4, and furthermore, the support 21 transmits the load of the article to the receiver 3.
Since the load of the article placed on the receiver 3 is
The detector 5 can reliably detect the loading and unloading of articles into and out of the receiver 3.

Further, in the present invention, since the elastic strength of the support portion 18 can be adjusted by rotating the winding shaft 13, if the strength is adjusted to the weight of the article 6 to be taken in and taken out of the receiver 3, it is possible to accurately detect the loading and unloading of the article. Moreover, it is economical because there is no need to prepare various springs with different elastic strengths, and there is no need to manage parts or erroneously attach the receiver 3/X.

Then, by adjusting the elastic strength of the spring 4, the receiver 3 can be moved only when the article 6 of a predetermined weight is put in or taken out from the receiver 3.
If the receiver 3 is made to be able to move up and down, the receiver 3
Even when an empty container is returned to the container, the detector 5 does not turn on or off, so that it is possible to determine not only whether the container is being put in or taken out, but also whether the container is empty or not.

In particular, the spring 4 of the present invention has a movable range a as shown by the imaginary line in FIG. Changes in the weight of the article 6 transmitted through the container can be sensitively sensed, and therefore the up and down movement of the receiver 3 becomes accurate.

Further, although the spring 23 shown in FIG. 8 tends to lose its elasticity after long-term use, this does not occur with the spring of the present invention.

Furthermore, since the spring of the present invention is made by winding a wire around a winding shaft, even if the length of the support portion 18 protruding from the winding shaft 13 is short, the total length of the wire 14 is long, and therefore the support portion 18 is the same as that of the wire 14. Unlike a spring that has only a length, the load applied to the receiver 3 can be reliably sensed, and the vertical movement of the receiver 3 accurately corresponds to the load.

Note that the detector 5 of the present invention may be other than a reed switch, for example, a switch using an electronic element, and in that case, the magnet 20 is not required.

Note that the detector 22 is electrically connected to the detector 5 as shown in Fig. 1, and what kind of food (for example, beer in a can, juice in a bottle, etc.) is placed in the receiver 3 of the detector 5 is electrically connected. If you decide in advance which foods and drinks are consumed, the detector 22 will tell you which food and how much you have eaten by simply operating the detector 22.
can be detected at the front.

In addition, as shown in the figure, the peripheral wall 2 is made independent, and the receiver 3 is attached to it.
, spring 4, detector 5, etc., each peripheral wall 2
It is only necessary to install the receiver 3, spring 4, detector 5, etc. inside the refrigerator 1. There is no need to install it inside the e-warehouse 1, and the installation work becomes extremely easy.

[Brief explanation of drawings]

Fig. 1 is a schematic front view of the device according to the present invention, Figs. 2 to 6 show an example of a case where the receiver is attached to a storage chamber-shaped peripheral wall, Fig. 2 is a front view, and Fig. 3 is a front view. Figure 4 is the rear view, Figure 3 is the rear view.
XX sectional view in the figure, FIG. 5 is a Y-Y sectional view in FIG. 3, FIG. 6 is an explanatory sectional view of the bottle placed on the receiver, and FIG. The explanatory diagram shown in FIG. 8 is an explanatory diagram of a conventional spring. 1 is a refrigerator, 2 is a peripheral wall, 3 is a receiver, 4 is a spring, 5
1 is a detector, 6 is an article, 13 is a winding shaft, 14 is a wire, 15 is one end of the wire, and 18 is a support for the wire.

Claims (1)

[Claims] 1 Each receptacle provided in two or more horizontally and two or more vertically in a refrigerator is supported by a spring so that when an item is put in or taken out of the receptacle, the rear end of the receptacle moves up and down. This is an article loading/unloading detection device that detects this vertical movement using a detection body to detect loading and unloading of articles into and out of the receiver, and the front end of the receiver is rotatably attached to the refrigerator. The rear end side is made to be able to move up and down, and the spring is made by winding a wire around a winding shaft installed in the longitudinal direction of the refrigerator, fixing one end of the wire to the winding shaft, and letting the other end protrude in a direction perpendicular to the winding shaft. This support part supports the rear end side of the receiver, and when the winding shaft is rotated and the wire is wound around it, the elasticity of the support part becomes strong, and when the winding shaft is reversed and the wire is unwound, the support becomes strong. The elasticity of the part can be adjusted to become weaker, and this adjustment allows the receiver to descend when a predetermined weight of an article is placed on the receiver, and the area closer to the entrance than the tip of the receiver is A device for detecting the loading and unloading of articles using a refrigerator automatic management device, which is provided with a support that supports the front end side and transmits the load of the article to a receiver.