JPH0121817Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a date stamp for stamping the date of receipt, etc. on delivered documents.

[Conventional technology]

This type of date stamp generally has a printing mechanism 5 built into a rectangular cylindrical outer frame 1 with an open bottom, as shown in FIGS. 6 and 7, and a handle 4 erected and supported on the upper surface of the outer frame 1. The basic structure is such that a slide frame 3 is supported on the lower surface of the opening of the outer frame 1 so as to be movable up and down.

The problem is in slide frame 3. The conventional slide frame 3 is manufactured by separately manufacturing a flat metal circular seat plate 13 and a U-shaped steel plate frame 25 formed by bending frame pieces 14, 14 on the left and right sides, and then attaching these circular seat plates 1 to each other.
3 and the U-shaped frame 25 were caulked at two locations, front and rear, indicated by reference numeral a in FIG.

[The problem that the idea attempts to solve]

However, since the conventional U-shaped frame 25 is made of a thin iron plate, it is easily deformed during manufacturing or caulking with the circular seat plate 13, and the outer frame 1 remains deformed.
As shown in FIG. There was a problem that the stamp did not match the letter and the stamp was blurred when stamped on paper.

In addition, when caulking the circular seat plate 13 and the U-shaped frame 25, the protrusion 26 provided on the circular seat plate 13
Because it is necessary to flexibly insert the holes 27 through the U-shaped frame 25, the circular seat plate 13 is misaligned relative to the U-shaped frame 25, as shown in FIG. The square hole 12 for protruding the printing belt, which is transparently provided in the center of the slide frame 3 and extending between the U-shaped frame 25 and the circular seat plate 13, is not crimped in this state. Occasionally, this may occur. This not only makes the impression of the seal unsightly, but also means that the front and rear widths of the square holes 12 must be left wide enough in advance, so that the front and rear printing surfaces of the rubber print body 20 are narrower. It also resulted in him being at a disadvantage because he had no choice but to do so.

On the other hand, if the slide frame 3 is simply made of a plastic molded product, sufficient strength of the frame pieces 14, 14, etc. cannot be ensured, and problems arise in the vertical sliding function of the slide frame 3.

The present invention focuses on this fact, and by making the slide frame in question a plastic molded product,
The aim is to solve all the disadvantages and inconveniences of the past all at once.

Another object of the present invention is to obtain a date stamp in which the strength of the slide frame made of plastic is sufficiently ensured, and the function of vertically sliding the slide frame relative to the outer frame is improved.

Still another object of the present invention is to obtain a date stamp suitable for continuous stamping.

[Means to solve the problem]

The present invention provides a date stamp having the above-mentioned basic configuration, in which the slide frame 3 includes a circular seat plate 13 having a left and right horizontally elongated square hole 12 in the center, frame pieces 14 erected on the left and right sides of the upper surface of the circular seat plate 13, Between the circular collar 19 connected downward from the outer periphery of the plate 13, the frame flanges F and F connected to the front and rear ends of each frame piece 14, and the frame flanges F and F on the front and back of the upper surface of the circular seat plate 13. It is made of a plastic molded product integrally formed with ribs R, R which stand upright and connect the bases of the flanges F, F, and the outer periphery of the square hole 12 on the lower surface of the circular seat plate 13 stores ink. A circular space 21 is formed between the porous rubber printed body 20 and the circular collar 19, and the rubber printed body 20
The lower end printed surface 20a of the circular flange 19 is fixed in such a manner that it slightly protrudes from the lower end of the circular flange 19, and the frame pieces 14, 14 are slidably fitted onto the outer surface of the lower end of the outer frame 1 from below and pivotally supported to prevent them from coming off. It is characterized by:

〔Example〕

1 to 5 show examples of date stamps according to the present invention.

In FIGS. 1, 2, and 3, reference numeral 1 denotes a rectangular cylindrical outer frame with an open bottom. This outer frame 1 holds a pair of front and rear half-split cases 1a and 1b, and holds a square frame 2 at the upper end and a slide frame 3 at the lower end to maintain the joined state. and,
A handle 4 is erected and supported on the upper surface of an outer frame 1, and a printing mechanism 5 is incorporated inside.

Among these, the printing mechanism 5 has a support shaft 7 mounted on the upper part of a gate-shaped inner frame 6, and a bridge 9 mounted on the lower end thereof between the left and right sides, and four rotary dials as shown in the figure are attached to the support shaft 7. 10 is rotatably supported, and each dial 1
Endless printing belts 11 lined with reinforcing cloth are wound in parallel on the left and right between 0 and bridge 9, and rotary dials 10 are made to protrude from the front and rear sides of outer frame 1, and each dial 10 connects each printing belt from the outside. 11 can be rotated manually. Note that each printing plate 11 is made of a porous rubber material having continuous pores.

As shown in FIGS. 1 and 4, the slide frame 3 includes a circular seat plate 13 having a horizontally elongated square hole 12 in the center, and frame pieces 14, 14 erected on the left and right sides of the upper surface of the circular seat plate 13. It is a plastic molded product that is integrally molded with. Each frame piece 14 is integrally formed with frame flanges F, F at its front and rear ends, and a circular seat plate 13 is formed between the frame flange F of the left frame piece 14 and the frame flange F of the right frame piece 14. At the front and rear, ribs R, R are integrally provided, and the bases of the frame flanges F, F are integrally and continuously formed by the ribs R.

Then, a long hole 15 is formed at the bottom of the left and right joints of the outer frame 1, and a pin receiving hole 1 is formed in the frame pieces 14, 14.
A shaft 17 is inserted between these elongated holes 15 and pin receiving holes 16, 16, and the slide frame 3 is moved vertically and externally with the shaft 17 on the lower surface of the opening of the outer frame 1. Fits in and pivots to prevent it from coming out.

The circular seat plate 13 of the slide frame 3 has a circular collar 19 extending downward from its outer periphery, and on the lower surface of the circular seat plate 13, a rubber printed body 20 made of the same material as the printing belt 11 is circularly attached to the outer periphery of the square hole 12. An annular space 21 is provided between the collar 19 and the collar 19 is fixed. The rubber printed body 20 is engraved with characters such as "Date of Reception" in reverse letters on the front and back sides of the square hole 12, and the lower end printed surface 20a is made to protrude slightly from the lower end of the circular collar 19. .

When the date stamp is not in use, it is inserted and supported on a stand 22 as shown in FIG. This stand 2
An elastic mat 23 pre-impregnated with ink is laid on the inner bottom surface of the rubber printing body 20, and the lower end printing surface 20a of the rubber printed body 20 and the lower end printing surface 11a of the printing belt 11 protruding through the square hole 12 are placed on the mat 23. are in contact with each other, and the ink stored in the mat 23 moves to and permeates these printing surfaces 20a, 11a, making continuous printing possible.

When stamping, first move from outer frame 1 to slide frame 3.
Press down and turn the corresponding dial 10 to manually feed and rotate each printing belt 11 to set it to a predetermined date. After that, by holding the handle 4 in your hand and pressing the lower surface of the date stamp against the predetermined paper surface, the lower end printed surface 11g of each printing belt 11 passes through the square hole 12 and becomes flush with the lower end printed surface 20a of the rubber printed body 20. The printed surfaces 11a and 20a are brought into contact with the paper surface. At this time, when the date stamp is pressed against the paper surface, the printing belt 11 and the rubber print body 20 are compressed, and the circular collar 19 comes into contact with the paper surface. As a result, the printing belt 11 and the rubber print body 20 are not compressed excessively any more, and it is possible to prevent as much as possible the ink stored therein from seeping out excessively and making the print imprint unclear and sticky.

Further, even if the rubber printed body 20 is compressed during stamping and ink oozes out from the outer periphery of the rubber printed body 20, this ink will accumulate in the annular space 21 and will not migrate to the lower end surface of the circular flange 19 and adhere thereto. do not have. Therefore, even if the lower end surface of the circular collar 19 comes into contact with the paper surface as described above, the paper surface will not be soiled.

[Effect of idea]

As explained above, according to the date stamp of this invention, the slide frame 3 is integrally molded with plastic. Therefore, compared to the conventional method in which the circular seat plate 13 and the U-shaped frame 25 are manufactured separately and then caulked together to form the slide frame 3, the first advantage is that it can be mass-produced at low cost. Secondly, there is no room for deformation or misalignment of the circular seat plate 13 or the frame pieces 14, 14 of the slide frame 3, and the slide frame 3 can always be attached to the outer frame 1 in the correct posture. As a result, there is no possibility that the seal impression will be partially blurred, and the circular seat plate 1
Since the square hole 12 to be provided through the circular seat plate 13 can be made as small as possible, there is an advantage that the effective area of the rubber printed body 20 fixed to the lower surface of the circular seat plate 13 can be increased accordingly.

In particular, the left and right frame pieces 1 of the slide frame 3
The bases of the frame flanges F, F of 4 and 14 are integrally and continuously formed by the ribs R on the circular seat plate 13, so that each frame piece 14, which is independent on the left and right, can be placed on the circular seat plate 13. It does not curve or distort in the left-right direction, maintains an upright state, and can fully perform the sliding guiding and holding functions to the outer frame 1.

Furthermore, since the printing belt 11 and the fixed rubber printing body 20 are made of a porous material that absorbs ink, continuous printing is possible. However, even if the date stamp is pressed too hard on the paper surface, the circular flange 19 integrally formed on the outer periphery of the lower end of the circular seat plate 13 will hit the paper surface, causing the printing belt 11 and the rubber printed body 20
Since the seal is not compressed excessively, there is no stickiness of the seal impression, and the problem of being pressed unevenly due to the interposition of the circular collar 19 can be solved.

Further, the annular space 21 formed between the circumferential surface of the rubber printed body 20 and the inner circumferential surface of the circular flange 19 prevents ink that oozes out due to compression of the rubber printed body 20 during stamping from adhering to the lower end surface of the circular flange 19. can be prevented. Therefore, even if the lower end surface of the circular flange 19 comes into contact with the paper surface, there is an advantage that the paper surface will not be soiled.

[Brief explanation of drawings]

Figures 1 to 5 show an embodiment of the date stamp according to the present invention. Figure 1 is a perspective view of the slide frame in an exploded state with the slide frame removed from the outer frame, and Figure 2 is a vertical cross-sectional front view of the main parts. 3 is a longitudinal sectional side view of the main part, FIG. 4 is a longitudinal sectional front view of the slide frame, and FIG. 5 is a partially longitudinal sectional side view of the slide frame in use. Figures 6 to 9 show conventional date stamps, Figure 6 is an external perspective view, Figure 7 is a vertical cross-sectional side view of the main part, and Figure 8 is a vertical cross-section of the main part to explain the installation failure state. The front view and FIG. 9 are bottom views illustrating a state of poor attachment. 1... Outer frame, 3... Slide frame, 4... Pattern, 5
...Printing mechanism, 6...Inner frame, 7...Spindle, 9...
Bridge, 10...Rotary dial, 11...Printing belt, 11a...Lower end printing surface of printing belt, 1
2... Square hole, 13... Circular seat plate, 14... Frame piece,
15...Long hole, 16...Pin receiving hole, 17...Shaft,
19...Circular collar, 20...Rubber print, 20a...
... Lower end printing surface of rubber printing body, F ... Frame flange,
R...Rib.

Claims (1)

[Claims for Utility Model Registration] A rectangular cylindrical outer frame 1 with an open bottom, a handle 4 erected and supported on the upper surface of the outer frame 1, a printing mechanism 5 incorporated into the outer frame 1, and the outer frame. The printing mechanism 5 consists of a slide frame 3 which is attached to the lower surface of the inner frame 6 so as to be vertically movable, and the printing mechanism 5 has a support shaft 7 on the upper part of the inner frame 6, a bridge 9 on the lower end thereof, and spans between the left and right sides of the inner frame 6.
A plurality of rotary dials 10 are rotatably attached to the support shaft 7 by protruding from the front and rear sides of the outer frame 1, and a porous endless printing belt 11 stores ink between each rotary dial 10 and the bridge 9. The slide frame 3 has a circular seat plate 13 having a rectangular hole 12 horizontally long on the left and right in the center, and a circular seat plate 13 having a horizontally elongated square hole 12 in the center, and a circular seat plate 13 on the left and right sides of the top surface of the slide frame 3. The upright frame pieces 14, 14, the circular collar 19 connected downward from the outer periphery of the circular seat plate 13, the frame flanges F, F connected to the front and rear ends of each frame piece 14, and the circular seat plate It is a plastic molded product that is integrally formed with ribs R, R, which stand between the frame flanges F, F on the front and back of the upper surface of the circular seat plate 13, and connect the bases of the flanges F, F, and on the lower surface of the circular seat plate 13. An annular space 21 is formed between a porous rubber printed body 20 that absorbs ink and the circular flange 19 on the outer periphery of the square hole 12, and the lower end printed surface 20a of the rubber printed body 20 is the lower end of the circular flange 19. The date stamp is fixed in a slightly protruding state, and the frame pieces 14, 14 are slidably fitted to the outer surface of the lower end of the outer frame 1 from below, and are pivotally supported in a manner that prevents them from coming off.