JPS62103Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of an emergency foot switch.

Recently, there has been an increase in the number of robbers breaking into banks, post offices, etc. and harming employees, and in such cases, there is a demand for emergency foot switches that can be operated while sitting in a chair.

In a conventional foot switch, as shown in Fig. 1, the upper cover A is biased in the P direction by a spring G around an axis B, and when the upper cover A is operated with the foot in the Q direction, the upper cover D is activated. However, if this is used as is, there is a risk of inadvertent operation and confusion, and also, when cleaning, a mop, etc. may be inadvertently placed on top cover A and operation is performed. I was also afraid.

The emergency switch according to this invention was developed in view of the above-mentioned drawbacks, and includes an emergency push button switch mechanism that maintains the reversed state, and a foot pedal placed in a position corresponding to the push button of this emergency push button switch mechanism. An emergency foot switch comprising an outer shell including a lever part, characterized by comprising a locking mechanism for the foot lever part and a protection part for the locking mechanism.

Hereinafter, embodiments of the emergency foot switch according to this invention will be described in detail with reference to the drawings. 1 is an emergency push button switch mechanism; 2 is a push button pushed upward by a return spring 3; it has a protrusion 4 in the middle to maintain the operating state; Leaf springs 5,5 are positioned. A contact spring 6 is engaged with the push button 2, and is pushed down when the push button 2 is pushed down, and comes into contact with the terminal board 7.
8, 8 is a terminal screw, and 9 is an outer shell of an emergency push button switch. 10 is a cover constituting the outer shell of the emergency foot switch, and is made of a flexible material; 11 is a foot lever portion provided corresponding to the push button 2 of the emergency push button switch mechanism 1;
It rotates in the P direction using 2 as a fulcrum. Reference numeral 13 denotes a lock mechanism protection section that is integrally constructed with the foot lever section 11. Reference numeral 14 denotes a base portion, which is integrally provided with mounting screw holes 15, 15, a convex portion 16 for positioning the emergency push button switch, and the like. Reference numeral 17 denotes a locking mechanism, which is pushed in the Q direction by a U-shaped leaf spring 18 fixed to the locking mechanism protection part 13, and locks the upper part 9a of the outer shell 9 of the emergency push button switch mechanism 1 and the foot lever. The convex portion 17a is inserted between the tips 11a of the portions 11. Reference numeral 19 denotes a compression spring, which functions to return the foot lever portion upward.

Therefore, the operation of this emergency foot switch is
While pushing the surface 17b of the locking mechanism 13 with the tip of the foot against the force of the spring 18 in the direction opposite to Q, the foot lever portion 11 is operated in the direction P'. As a result of this operation, the lock mechanism 17 moves from the dotted line position to the solid line position as shown in FIG. Since the convex part 17a of the lock mechanism 17 that was previously used is gone, the foot lever part 11 is now
Move in the P′ direction. The foot lever part 11 descends using the hinge part 12 as a fulcrum, and moves the push button 2 of the emergency push button 1 in the P' direction. As a result, the contact 6a at the tip of the contact spring 6 comes into contact with the terminal plate 7. At this time, the protrusion 4 provided in the middle of the push button 2 pushes the leaf springs 5, 5 apart and descends, and the leaf springs 5, 5 are positioned above the protrusion 4, so that the foot lever part 11
Even when the force in the P' direction is removed and the foot lever portion 11 returns to the P direction by the force of the spring 19, the emergency push button switch is reversed and the contact point 6a and the terminal plate 7 continue to be in contact with each other. When the foot lever part 11 returns to its original position, the lock mechanism 13 also releases the spring 1.
It moves in the Q direction by the force of 8 and locks again.
Furthermore, even if an object placed on the upper R part of the locking mechanism protection part 13 falls, this protection part 13 is integrated with the foot lever part 11, and because of the presence of the locking mechanism, the foot lever part 11 will be lowered. No malfunctions. Furthermore, even if the foot lever section 11 is simply operated in the P' direction due to carelessness, the emergency push button switch mechanism 1 will not operate.

FIGS. 4 to 6 show another embodiment in which the locking mechanism is constructed of a relatively strong elastic body 27, and the L-shaped base end 27a of the locking mechanism is attached with a screw 20 on the inner surface of the locking mechanism protection part. The structure is simplified, with the tip 27b being in contact with the flat portion 9a of the outer shell 9 of the emergency push button switch 1.
In the lock mechanism shown in FIG. 5, the tip 27b of the elastic body 27 constituting the lock mechanism 17 is brought into contact with a protrusion 14a provided on the base 14. It is also possible to fix the molded product 21 to the back surface of the elastic body 27 to improve operability.

As mentioned above, the emergency switch according to this invention consists of an emergency push button switch mechanism that maintains an inverted state, and an outer shell that includes a foot lever section at a position corresponding to the push button of the emergency push button switch mechanism. This foot switch is characterized by being equipped with a locking mechanism for the foot lever portion and a protection portion for this locking mechanism, so that if the foot lever portion is simply operated in the P′ direction by carelessness, The emergency push-button switch mechanism 1 does not operate, and even if a mop presses the top surface of the emergency switch during cleaning, the lock mechanism protection portion 13 is present, so the emergency push-button switch mechanism 1 also does not operate. Therefore, it is possible to provide an emergency foot switch with a structure in which false alarms are less likely to occur, which is practically effective.

Note that this invention is not limited to the embodiments, but includes various modifications based on the gist of the invention.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a conventional emergency foot switch corresponding to the emergency foot switch according to the present invention. 2 to 6 show embodiments of the emergency foot switch according to this invention, and FIGS. 2A to 2C are diagrams for explaining the first embodiment, and FIG. 2 is a sectional view of the emergency foot switch, FIG. 2B is a partial sectional view of the upper part thereof, and FIG. 2C is a partial perspective view of the same. 4 and 5 are sectional views showing other embodiments of the emergency foot switch according to this invention, and FIG. 6 is a partial sectional view of the same.

Claims (1)

[Scope of utility model registration request] An emergency foot switch comprising an emergency push button switch mechanism that maintains an inverted state, and an outer shell including a foot lever section at a position corresponding to the push button of the emergency push button switch mechanism, wherein a locking mechanism for the foot lever section and a locking mechanism for the foot lever section are provided. An emergency foot switch characterized in that it is equipped with a protection part for this locking mechanism.