JP7496988B2 - Foot-operated stamper - Google Patents

Description

The present invention relates to a foot-operated stamper that allows you to stamp without touching the stamp.

Many stamps are used in stamp rallies, where people collect stamps at specific locations such as train stations, roadside stations, city areas, and tourist spots. Because these stamps are held in the hands of an unspecified number of people and stamped, there is a risk that they may become a vector for infection with the novel coronavirus and other diseases.

To eliminate this risk of infection, it is possible to use an electric stamping device as shown in Patent Document 1 as a stamper for the stamp rally. However, such an electric stamping device requires a motor and its control circuit, which makes the device expensive, requires a power source at the installation location, and is dangerous for small children.

Japanese Utility Model Publication No. 59-38291

The object of the present invention is therefore to provide a foot-operated stamper that is inexpensive to manufacture and allows the user to stamp safely without touching it with their hands.

The foot-operated stamper of the present invention, which has been devised to solve the above-mentioned problems, comprises a hollow support pillar with a lift rod inside , a foot pedal provided at the bottom of the support pillar for operating the lift rod, a table fixed to the top of the support pillar, and a stamp support part supported by the lift rod at a position further above the table and capable of being raised and lowered relative to the table, a first spring is disposed at the lower end of the lift rod to constantly urge the lift rod upwards , a second spring is disposed between the upper end of the lift rod and the stamp support part which is attached so as to be able to slide freely on the lift rod, and the foot pedal is provided with a stopper which limits the maximum amount of depression .

It is preferable that a self-ink-containing stamp is attached to the stamp support. Self-ink-containing stamps include stamps that have an ink absorbing body built in and a structure in which ink is naturally supplied to the printing surface made of a material with continuous pores, as well as stamps that have an ink absorbing body with a cloth or the like attached to the top and a non-permeable material such as a rubber stamp or resin stamp attached to the bottom, and that use a reversing mechanism to make a print.

The foot-operated stamper of the present invention allows the stamping operation to be performed without using hands, eliminating the risk of it becoming a medium of infection for the new coronavirus and other diseases. In addition, the foot-operated stamper of the present invention does not require a power source, has a simple structure, and can be manufactured at low cost. Moreover, the load on the printing surface of the stamp can be adjusted and mitigated by the second spring, so it is safe even if a child gets their finger caught.

FIG. 2 is a partially cutaway front view showing the foot-operated stamper of the embodiment. FIG. 2 is a partially cutaway side view showing the foot-operated stamper of the embodiment. FIG. FIG.

The following describes an embodiment of the present invention.
FIG. 1 is a partially cutaway front view showing a foot-operated stamper according to an embodiment of the present invention, and FIG. 2 is a partially cutaway side view.

In these figures, 10 is a base placed on the floor, and 11 is a vertical support pillar erected above this base 10. In this embodiment, the support pillar 11 is a hollow pipe with a circular cross section, with a lifting rod 12 at its center. A first spring 13 is disposed at the bottom of this lifting rod 12, which constantly urges the lifting rod 12 upward. The top of the lifting rod 12 is supported at the center of the support pillar 11 by a hollow guide 14 fixed to the support pillar 11 so that it can be raised and lowered freely, and when no external force is applied, the lifting rod 12 is pushed up to the upper position shown in FIG. 2 by the first spring 13.

A foot pedal 15 is provided on the base 10 below the support 11. This foot pedal 15 has one end of a pedal 16 supported by a horizontal pedal rotation shaft 17, and the tip of the pedal 16 reaches the top surface of the first spring 13 as shown in Figure 2. Therefore, the tip of the pedal 16 is pushed up to the position shown in Figure 2 by the first spring 13, but when the user presses on the pedal 16, the lift rod 12 compresses the first spring 13 and descends as shown in Figures 3 and 4. As shown in Figure 1, a stopper 18 is attached to the back of the pedal 16, which limits the maximum amount that the pedal 16 can be pressed down. The base 10 is sized so that the entire base does not tip over even when the pedal 16 is pressed down.

As shown in FIG. 2, a table 20 is fixed to the top of the support 11. The table 20 is cantilevered to one side of the support 11, and a stamp pad 21 is provided on its upper surface. The stamp paper is placed on the stamp pad 21 and stamped with a stamp 30, which will be described below. The stamp pad 21 is preferably made of an elastic material suitable for stamping. The height of the table 20 is preferably set so that even children can use it.

A stamp support 31 that can be raised and lowered relative to the table 20 is provided at a position even higher than the table 20. In this embodiment, the stamp support 31 is structured so that the stamp 30 can be attached to the tip of the horizontal arm 32 and the inclined arm 33. The stamp 30 is preferably a self-inking stamp, that is, one that has an ink absorbing body built in and is structured so that ink is naturally supplied to the printing surface made of a material with continuous pores, or one that has an ink absorbing body with a cloth or the like attached to the surface at the top and a non-permeable material such as a rubber stamp or resin stamp at the bottom, and is structured so that it uses a reversing mechanism to make a print. It is preferable that the stamp 30 is detachable from the stamp support 31 so that it can be easily replaced.

The horizontal arm 32 and inclined arm 33 of the stamp support part 31 reach the lifting rod 12 through a vertically long opening 34 formed on the front surface of the support 11. 35 is a support pipe slidably attached to the outer periphery of the lifting rod 12, and maintains a constant distance between the horizontal arm 32 and the inclined arm 33. The horizontal arm 32 is supported by the upper surface of a support nut 36 fixed to the lifting rod 12. Therefore, when the lifting rod 12 is in the raised position shown in Figure 2, the horizontal arm 32 and inclined arm 33 are also in the raised position, and the stamp paper can be inserted between the stamp 30 and the stamping table 21.

A spring receiver 37 is fixed to the upper end of the lift rod 12, and a second spring 40 is disposed between the spring receiver 37 and the inclined arm plate 33 of the stamp support part 31. As shown in FIG. 2, this second spring 40 always springs the stamp support part 31 downward toward the support nut 36.

The user inserts the stamp paper onto the stamp table 21 in the state shown in Figure 2 and depresses the pedal 16. Then, as shown in Figure 3, the lift rod 12 descends, and the support nut 36 fixed to the lift rod 12 also descends, so that the stamp support part 31 and the stamp 30 supported by the support nut 36 also descend, and the printing surface, which is the underside of the stamp 30, comes into contact with the stamp paper placed on the stamp table 21.

If the pedal 16 is pressed further from this state, the lift rod 12 will descend further as shown in Figure 4. However, the printing surface of the stamp 30 is prevented from descending by the stamping platform 21, so the stamp support part 31 and stamp 30 remain in their positions and only the lift rod 12 descends further. As a result, the upper end of the second spring 40 is pressed down by the spring receiver 37 fixed to the upper end of the lift rod 12, applying a downward force to the stamp support part 31. As a result, the printing surface of the stamp 30 is pressed against the printing paper by the elastic force of the second spring 40, and the stamp is stamped.

The maximum depression amount of this pedal 16 is regulated by the stopper 18, and the downward stroke of the lift rod 12 is determined. If the stroke and elastic force (spring constant) of the second spring 40 are set so that an elastic force suitable for stamping acts when the lift rod 12 is at its lowest point, the user can always stamp with the optimal stamping force by simply depressing the pedal 16 to the position regulated by the stopper 18.

In addition, if the stamp support part 31 is fixed directly to the lift rod 12 (not shown), the force of stepping on the pedal 16 acts directly on the printing surface of the stamp 30, which poses a risk of injury if a child accidentally pinches their finger. However, in an embodiment of the present invention in which the stamp support part 31 is slidably fixed to the lift rod 12, a second spring 40 is placed between the upper end of the lift rod 12 and the stamp support part 31, and the load on the printing surface of the stamp 30 is mitigated by replacing the direct stepping force with the elastic force of the spring, so that it is safe even if a child puts their fingertip under the stamp 30. Furthermore, it is even safer if the gap between the stamp 30 and the stamping table 21 is made small so that the fingertip cannot be inserted.

Thereafter, when the foot is lifted off the pedal 16, the pedal 16 is lifted by the first spring 13, and the lift rod 12 also rises, returning to the initial state shown in Fig. 1. Generally, the first spring 13 requires a strong spring force since it is necessary to lift the total weight of the lift rod 12, the stamp support part 31, and the stamp 30, but the second spring 40 applies a predetermined printing force to the printing surface of the stamp 30, so it can have a spring force weaker than that of the first spring 13. For this reason, in the embodiment of the present invention, the first spring 13 is made stronger than the second spring 40, and the stroke of the second spring 40, the support nut 36, the height of the stamping table 21, etc. are adjusted so that the second spring 40 does not completely compress when the first spring 13 is depressed.
The relationship in strength of the repulsive forces of the first spring and the second spring is not limited, and can be set appropriately depending on the person to be stamped, the stamping tool to be installed, the size of the support post to be used, etc.

As described above, with the foot-operated stamper of the present invention, a user can stamp by simply inserting their own stamp paper or stamp book between the stamp 30 and the stamp stand 21 and stepping on the pedal 16. This means that even if an unspecified number of people use it, it is possible to avoid the risk of it becoming a medium for infection with the new coronavirus, etc.

In addition, the foot-operated stamper of the present invention does not require a power source such as a motor, so it can be installed in places without a power source, can be manufactured inexpensively, and can be used for a wide range of purposes other than stamp rallies.

In addition, the foot-operated stamper of the present invention adjusts and reduces the load on the printing surface of the stamp 30 using the second spring 40, allowing for clear imprinting and being safe even if a fingertip is pinched.

Although the preferred embodiment of the present invention has been described above, it is also possible for the stamp support portion 31 to be formed from a single member rather than from the horizontal arm 32 and the inclined arm 33. It is also possible for the support column 11 to be a rectangular column. In this manner, the present invention is not limited to the structure of the above-described embodiment, and it goes without saying that the specific shape and structure can be modified as appropriate.

REFERENCE SIGNS LIST 10 Base 11 Support 12 Lift rod 13 First spring 14 Guide 15 Footrest 16 Pedal 17 Pedal rotation shaft 18 Stopper 20 Table 21 Stamp stand 30 Stamp 31 Stamp support 32 Horizontal arm 33 Inclined arm 34 Opening 35 Support pipe 36 Support nut 37 Spring receiver 40 Second spring

Claims (2)

The stamp press comprises a hollow support having a lifting rod therein , a foot pedal provided at the bottom of the support for operating the lifting rod, a table fixed to the top of the support , and a stamp support supported by the lifting rod at a position above the table and movable up and down relative to the table,
A first spring is disposed at the lower end of the lift rod to constantly urge the lift rod upward;
a second spring is disposed between the upper end of the lift rod and the stamp support part slidably attached to the lift rod for absorbing a load applied to the printing surface of the stamp ;
The foot-operated stamper is characterized in that the foot-operated portion is provided with a stopper for regulating a maximum amount of depression . The foot-operated stamper according to claim 1, characterized in that a self-inking stamp is attached to the stamp support part.

Images