Printing – Printing members and inkers – Pad inker
Patent
1987-10-23
1989-04-25
Wiecking, David A.
Printing
Printing members and inkers
Pad inker
B41K 140
Patent
active
048236969
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a hand stamp with a self-inking device provided with an inversion mechanism located in a housing, said mechanism moving the printing types of the stamp from an upwardly pointing position adjacent to the ink carrier inserted in the housing, downwardly into the printing position, during which motion such mechanism is pivoting, and, for actuating such inverting and printing action, such mechanism being linked with a U-shaped actuating yoke extending across the housing, the legs of such yoke being displaceably supported on the lateral surfaces of the housing, and which yoke, by means of a spring having its one end supported on a transverse support provided in the housing, is movable upwardly into the position in which the printing types come to rest against the ink carrier, and depressible by hand into the position conforming to the printing position of the printing types.
Hand stamps of the above type are known, such stamps having housings made of metal. It is a drawback that the manufacture of such housings requires great expenditure in that the housing has to perform a great number of different functions, that is, for example, in addition to supporting the inversion mechanism for the printing types, the housing has to displaceably support also the actuating yoke and hold the ink carrier in a way such that the latter is readily accessible or removable. The reason for such great expenditure is that provision has to be made on the housing for a number of parts and that the housing has to be worked in a greater number of locations so as to be capable of performing the aforementioned functions with sufficient accuracy.
One objective of the present invention is to create a hand stamp of the type specified above having a housing that can be manufactured in a significantly simpler manner than the metal housings of the type of hand stamps commonly in use heretofore, while at the same time having good stability and being readily capable of withstanding both frequent use and high stresses acting on the stamp.
The hand stamp according to the invention, such stamp being of the type described above, is characterized in that the housing of the stamp has a frame part made of metal and a plastic guide element arranged on the top side of the frame part. The inversion mechanism and the printing types are arranged in the frame part and the guide element is attached to the frame part or inserted in the latter. Two longitudinal edge strips are arranged on both sides of the frame part and extend parallel to the swivel axis of the printing types, such strips being connected with one another by a bridge extending across or through the frame part and forming a guide with at least one opening in one longitudinal edge strip for sliding in the ink carrier, such guide being formed by such strips alone or by the latter jointly with the top wall of the frame part. The above-mentioned objective can be very well accomplished by the embodiment according to the invention. The housing has very good stability by virtue of the metal frame part, in which the inversion mechanism and the printing types are arranged. The frame part can be manufactured in a relatively simple way as it is not required to perform various supporting and guiding functions required for the stamp. Such guiding and supporting functions, which required accuracy but not the capability of absorbing strong forces, are performed by the guide element. Such functions include, for example, the accommodation and guidance of the ink carrier. Making the guide element from plastic material permits an exact manufacture of such element with relatively little manufacturing expenditure. Furthermore, by providing the stamp with the guide element, it is possible to create in a relatively simple manner the condition for using an ink carrier designed to be pushed in in the manner of a drawer. For the person handling the stamp, such an ink carrier can be inserted in a manner simpler and with less risk of soiling than ink carriers embodied in the form of a pan, which, wi
REFERENCES:
patent: 201048 (1878-03-01), Roberts et al.
patent: 454499 (1891-06-01), Ryer
patent: 1083336 (1914-01-01), Parker
patent: 2252649 (1941-08-01), Smallman
patent: 2939390 (1960-06-01), Clausing
patent: 3216352 (1965-11-01), Schnackel
patent: 3760721 (1973-09-01), Stier, Sr.
Kelman Kurt
Wiecking David A.
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