EP3330094B1 - Stamp pad unit - Google Patents

Description

The invention relates to an ink pad unit for a self-inking stamp, arranged with two arranged within a frame, adjacent to each other opposite surfaces of a partition plate and thereby separated from each other color pad.

Ink pad units of the above type are known. The ink pad units may be used in self-inking temples to color a printing plate of the self-inking stamp with ink picked up in the ink pads, especially ink, for the desired generation of a stamp on a substrate. In the event that the ink in one of the two ink pads is used up, the ink pad unit can be reversed and the stamping process continued with the still unused other ink pad. In addition, especially in self-inking temples, after prolonged residence time of the ink pad unit received therein, the surface of the ink pad applied to the pressure plate can be affected by the pressure plate itself. In particular, the stamp types on the printing plate or the engraving on the printing plate can be pressed into the ink pad, as a result of which the quality of the stamp impression to be produced suffers. By turning the ink pad unit, the stamping operation can be continued rapidly with the fresh ink pad. In contrast, in the case of an ink pad unit with only one ink pad, it would only have to be re-supplied with paint before the stamping process was continued or exchanged for a new ink pad, which may need to be provided with appropriate time.

In order to be able to reliably fix the ink pads in the context of the ink pad unit, they are glued to the frame and / or with the partition plate arranged between the ink pads. The disadvantage here is that the bonding can lead to unevenness even at still unused ink pad on the intended to rest on a printing plate top of the ink pad, whereby the quality of the stamp to be produced impression is impaired.

The AT 503 424 A4 discloses an ink pad unit for a self-inking stamp, comprising a pad holder having a separating bottom and a peripheral edge. Within the orbiting Rands are arranged on both sides of the partition color memory for receiving stamping inks. The ink pad unit can be removed from the stamp and reinserted in a turned state. From this document, however, no solution of the problem of the aforementioned unevenness, due to sticking of the ink pad with the pad holder, emerges.

In the US 3,386,413 a reversible ink pad is shown with a perforated plastic plate, at the top and bottom of each a sub-pad is arranged. The perforations in the plastic plate allow flow of ink from the lower part pad, which receives the ink from a container, to the upper part pad. The partial cushions are glued to the plastic plate, whereupon the two partial cushions are each covered with a fabric web. The fabric web is then glued hot with edges of the plastic plate. The ink pads thus produced thus also have the disadvantage of any unevenness.

DE 20 2004 018 103 U1 shows a holding device with a retaining edge for holding only a single ink pad.

The US 7,124,684 B1 relates to a one-piece ink pad holder for one or two ink pads, which are separated by a liquid-tight central partition. The ink pads are held by adhesives or unspecified mechanical latching means ("mechanical latching means") in the ink pad holder.

The US 2016/075067 A1 discloses a conventional ink pad holder having a bottom and walls therefrom for forming a single ink pad receiving space.

The JP S5853659 U relates to other types of ink pad containers and does not recognize a two-part frame.

AT 302 383 B discloses a cassette made of elastic material with a single, releasably applied stamp pad, which has a rigid bottom plate.

The FR 797,863 relates to a container for two ink pads, which has two hinged storage compartments as a housing for the ink pad. Between the receiving compartments a pivotally mounted on the hinged flap of metal is provided. The ink pads may be permanently held in the receptacles by bent edges of the receptacles or by means of a frame.

From the CH 459 273 is a case for two different colored, replaceable ink pad out. The case has a bottom part and a cover connected thereto by hinges, in which the ink pads are received. For holding and replacing the ink pad in the bottom part or lid pivotable securing tabs are provided on the bottom part and the lid. At the junction between the bottom part and the lid, an intermediate sheet is hinged, which is to prevent the ink pad come into contact with each other when the case is closed.

The AT 007 995 U1 discloses a two-part holding device for a stamp pad. The lateral edges of the upper part of the holding device are bent inwards and fix the ink pad in the vertical direction. The two parts of the fixture are fixed after insertion of the stamp pad, for example, by gluing together.

It is therefore an object of the invention to provide an ink pad unit as stated above, which allows a stamp print high quality. In particular, the ink pad unit should in the unused condition of the ink pad as possible no bumps in the ink pad, in particular on the facing away from each other tops of the two ink pads, which can be brought into contact with a printing plate. For undisturbed coloring of a printing plate, the ink pads received in the ink pad unit, at least when still unused, should each have as much elastic properties as possible before incorporation into the ink pad unit, ie be free of adhesive-hardened areas.

For this purpose, the invention provides an ink pad unit as defined in claim 1. Advantageous embodiments and further developments are specified in the dependent claims.

According to the invention, it is thus provided that the frame consists of two separate, interconnected frame parts, within which the ink pads are accommodated, wherein at least one frame part, preferably each of the frame parts, at least one inwardly directed, with a color pad engaging retaining projection for holding of the ink pad and wherein the two frame parts have releasably interlocking locking elements for their mutual connection, wherein the partition plate is formed separately from the frame parts. The ink pad unit, which can be inserted into a self-inking stamp, thus has a frame in which the partition plate and the two ink pads are arranged. The frame has interconnected side walls, wherein those side walls that are adjacent to each other, are arranged at a right angle to each other when the floor plan of the frame according to a conventional design is rectangular or square. The side walls extend, as is usual with a frame, between the mutually opposite peripheral edges of the frame. In addition, the height of the side walls or the height of the frame is determined by the distance between the peripheral edges of the frame in a known manner. Preferably, the frame along its circumference, ie along its peripheral edges, a substantially constant height. The partition plate is provided as a partition in the frame and spaced from the peripheral edges of the frame. Between the side walls of the frame and on opposite surfaces of the partition plate, the ink pads are arranged, which are thus separated from each other by means of the partition plate. In order to reliably absorb the ink pad without an adhesive bond with the frame in the frame, ie without the ink pads unintentionally detach from the frame, at least one holding projection is provided on the frame, at which at least one ink pad comes to rest in such a way that it does not come out of the Frame can fall out. Appropriately, at least one holding projection is provided for each ink pad. It is also favorable when the retaining projection extends from the respective peripheral edge of the frame or at least as close as possible to the peripheral edge of the frame. In this case, at least one, preferably each retaining projection, substantially in a right angle from the respective side wall inwardly, ie in the direction of one of the other side walls, in particular in the direction of the opposite side wall, extend. In order to bring the ink pads in the frame, the frame consists of two separate frame parts, each frame part is provided for receiving a color pad. The ink pad is used for this purpose in the respective frame part or inserted and thereby comes to rest on the retaining projection. In particular, at least one frame part, preferably each of the frame parts, at least one such inwardly directed, in the operating position with a color pad engaging retaining projection for holding the ink pad. The ink pad is inserted or inserted through an opening of the frame part, which is free of retaining projections. The frame parts are formed connected to each other and, after the ink pads were used on opposite sides or surfaces of the partition plate in the frame parts, connected to each other, for example by gluing or screwing. In this way, the ink pads are separated, adhesive-free, reliably received in the frame and hardened areas in the ink pads, which could otherwise be caused by adhesive penetrating the ink pads, are avoided. Since the ink pads are held by at least one holding projection and not by an adhesive bond in the use position in the frame, the quality of the stamp imprint is not affected by the inclusion of the ink pad in the frame.

The two frame parts are detachable, in particular mechanically, connected to each other. The two frame parts can thus be separated from each other without damage to replace one or both ink pads. Subsequently, the two frame parts can be reconnected for use before the ink pad unit is inserted into a punch.

The two frame parts have releasably interlocking locking elements for their mutual connection. In this way The frame parts can be easily, quickly and reliably connected to each other. For example, at least one hook attached elastically to a frame part can engage behind at least one projection arranged on the other frame part. Since the locking elements releasably engage with each other, the frame parts can be separated again to exchange the ink pads. In the opposite case of a non-separable snap-in connection or snap connection, the entire ink pad unit would have to be exchanged after the two ink pads had been consumed.

So that the ink pads can be introduced as simply as possible into the frame parts, it is provided that the partition plate is formed separately from the frame parts. In this case, first each color pad can be used in each case a frame part, whereupon the partition plate is inserted between the ink pad before the frame parts are joined together. In contrast, a partition plate produced in one piece with a frame part could complicate the insertion of the ink pad in this frame part. Preferably, the length extension and the width extension of the partition plate correspond to the respective inner dimensions of the frame, so that the edge of the partition plate rests as completely as possible on the inner surfaces of the side walls of the frame.

According to a preferred embodiment of the invention it is provided that the two ink pads and the partition plate together, so superimposed, have a thickness corresponding to a standard color pad. If the facing away from each other tops of the two used in their use position in the frame color pad is not in a plane with the peripheral edges of the frame, it is advantageous if the height of the side walls or the height of the frame corresponds to the thickness or height of a standard color pad. This ensures that the ink pad unit, which has the same thickness or height as a standard color pad, can be inserted into a stamp dimensioned for standard color pads, for example a self-inking stamp. Since, unlike a standard color pad, the same thickness ink pad unit has two ink pads, each of the two ink pads is correspondingly thinner than the standard color pad. Accordingly, would be from the Known prior art adhesive compounds, or in the ink pad penetrating, curing adhesive, even more negative impact on the quality of the stamp imprint. By providing the retaining projections in place of adhesive joints this disadvantage is avoided.

In order to use the ink pad as easy as possible in the frame parts, it is advantageous if the sum of the heights of the two frame parts is substantially equal to the height of the frame. In this case, the frame is divided along its height extension or thickness extension into two frame parts, i. each frame part has one of the peripheral edges of the frame. Convenient, but not absolutely necessary in this case, if the virtual, separating the frame in the two frame parts dividing plane parallel to the plane in which a peripheral edge of the frame is located. The ink pads can thus be inserted from that open side or through that opening of the frame part in this, which is opposite to the at least one retaining projection.

In an alternative embodiment, each frame member may have substantially the same height as the frame. In this case, the frame is divided along its longitudinal extent or widthwise extension into the two frame parts, i. each frame part has a part of both circumferential edges of the frame. The virtual, separating the frame in the two frame parts dividing plane accordingly extends obliquely or perpendicular to the plane in which a peripheral edge of the frame is located. The ink pads can be used from that open side or through that opening of each frame part in this, which is created by the now non-existent side wall of the frame part.

In order to hold the ink pad particularly reliable in the frame, it is advantageous if the retaining projection is formed as a retaining edge, which extends at least along part of the circumference of the frame part, preferably along the entire circumference of the frame part. A particularly large extension of the retaining edge favors reliable retention of the ink pads in the frame. If the frame is along its vertical extent or thickness extension is divided into the two frame parts, the retaining edge as a circumferential retaining edge along the entire circumference of the frame part, that is, along one of the peripheral edges of the frame, extend. If, on the other hand, the frame is divided into the two frame parts along its longitudinal extension or width extension, each frame part preferably has two mutually opposite holder edges, from which each holder edge can extend only along a part of each of the peripheral edges of the frame.

When the partition plate is made liquid-tight, undesirable transfer of ink, particularly ink, from a still-unused ink pad to a paint pad whose ink is almost consumed can be prevented. Thus, the full consumption of the ink in the ink pad used can be recognized by the user of the ink pad unit, and the ink pad unit can be further used in a turned state without having to recolorize the spent ink pad therebetween. As an alternative or in addition to a subsequent new coloring, a new ink pad can be procured while the ink pad unit is being used in a turned state. The partition plate is impermeable to those pressures for ink, i. liquid-tight, formed, which act on the separating plate during the intended use of the ink pad unit.

For a particularly stable design of the partition plate can be provided that the partition plate made of metal, such as steel. The thus formed stably partition plate can prevent that pressure exerted by a pressure plate on the currently used ink pad is undesirably transferred to the still unused other ink pad. If the partition plate were fixed to the frame, for example integrally formed with a frame member, the unused ink pad could be protected substantially prior to all the pressure applied by the pressure plate. In contrast, since the partition plate is formed separately from the frame and inserted into this, can at least be prevented that the types or the engraving of the printing plate in the still unused Press in the color pad.

Alternatively to a production of the metal separating plate, it can be provided that the separating plate consists of a rigid plastic, for example polyoxymethylene. Also, in this way, the partition plate can be made stable to protect the still unused ink pad from damage or adverse effects by the pressure of a printing plate. Polyoxymethylene has a high strength, hardness and rigidity and is therefore particularly suitable as a material for the partition plate.

If the two ink pads are the same thickness, the same number of stamping operations can advantageously be performed with both ink pads before the ink pads need to be replaced or refilled with ink. Conveniently, the two ink pads are identical. The partition plate is arranged in this case in the middle of the vertical extent of the frame in this.

As an alternative to equally thick ink pads, it may be provided that one of the ink pads has a greater thickness than the other ink pad, which forms a reserve pad, as the main pad. Thus, with the main pad, a larger number of stamping operations can be performed than if the ink pads were made equally thick, while after turning the ink pad unit and continuing the stamping operation with the spare pad, there is still time to obtain a new main pad. The partition plate is arranged in this case outside the center of the vertical extent of the frame in this.

In order to simplify the manufacturing process of the frame of the ink pad unit, it may be expedient if the two frame parts are the same size. In this case, the frame parts on an equal length extension, same width extension and the same height extent.

According to a further embodiment of the invention can be provided that the two color pads are impregnated in different colors. Accordingly, by turning the ink pad unit, stamp images of different colors can be created. That's it Particularly favorable when the partition plate is formed and arranged to separate the two ink pads liquid-tight, to prevent ingress of ink of a dye pad in the other ink pad. For this purpose, the partition plate can be made of an ink-impermeable material and of length and width dimensions, which ensure a liquid-tight engagement of the partition plate on the inner surfaces of the side walls of the frame. Alternatively it can be arranged along the peripheral edge of the partition plate, a sealing element.

• Fig. 1A eine Stempelkisseneinheit gemäß der Erfindung in einer schaubildlichen Ansicht mit darin aufgenommenen Farbkissen ;
• Fig. 1B die Stempelkisseneinheit aus Fig. 1A in einer schaubildlichen Ansicht, in gewendetem Zustand;
• Fig. 2A die Stempelkisseneinheit aus Fig. 1A in einer schaubildlichen Ansicht, unter Weglassen der Farbkissen;
• Fig. 2B die Stempelkisseneinheit aus Fig. 2A in einer schaubildlichen Ansicht, unter Weglassen der Farbkissen und in gewendetem Zustand;
• Fig. 3 die Stempelkisseneinheit aus Fig. 1A in einer Ansicht von oben;
• Fig. 3A die Stempelkisseneinheit aus Fig. 3 in einer Schnittansicht entlang der Linie A-A in Fig. 3;
• Fig. 3B eine zu Fig. 3A ähnliche Schnittansicht einer Stempelkisseneinheit, bei welcher die Farbkissen unterschiedlich dick ausgebildet sind;
• Fig. 4 eine Stempelkisseneinheit gemäß der Erfindung in einer schaubildlichen Ansicht, unter Weglassen der Farbkissen, mit voneinander getrennten Rahmenteilen, wobei der Rahmen entlang seiner Längserstreckung in die zwei Rahmenteile unterteilt ist;
• Fig. 5 eine Stempelkisseneinheit gemäß der Erfindung in einer schaubildlichen Ansicht, unter Weglassen der Farbkissen, wobei der Rahmen entlang seiner Breitenerstreckung in die zwei Rahmenteile unterteilt ist;
• Fig. 6 eine Stempelkisseneinheit gemäß der Erfindung mit laschenförmigen Haltevorsprüngen; und
• Fig. 7 eine Stempelkisseneinheit gemäß der Erfindung in einer auseinandergezogenen Ansicht.

The invention will be further elucidated below on the basis of preferred non-limiting exemplary embodiments with reference to the drawing. Show it:

• Fig. 1A an ink pad unit according to the invention in a diagrammatic view with ink pads received therein;
• Fig. 1B the ink pad unit Fig. 1A in a perspective view, in an inverted state;
• Fig. 2A the ink pad unit Fig. 1A in a perspective view, omitting the ink pads;
• Fig. 2B the ink pad unit Fig. 2A in a perspective view, omitting the ink pads and in turned state;
• Fig. 3 the ink pad unit Fig. 1A in a view from above;
• Fig. 3A the ink pad unit Fig. 3 in a sectional view along the line AA in Fig. 3 ;
• Fig. 3B one too Fig. 3A similar sectional view of an ink pad unit in which the ink pads are formed differently thick;
• Fig. 4 an ink pad unit according to the invention in a diagrammatic view, omitting the ink pads, with separate frame parts, wherein the frame along its longitudinal extent is divided into the two frame parts;
• Fig. 5 an ink pad unit according to the invention in a diagrammatic view, omitting the ink pads, wherein the frame is divided along its width extension into the two frame parts;
• Fig. 6 an ink pad unit according to the invention having tab-shaped holding projections; and
• Fig. 7 an ink pad unit according to the invention in an exploded view.

Fig. 1A shows an ink pad unit 1 according to the invention, which comprises two ink pads 2a, 2b, of which in Fig. 1A only the ink pad 2a is visible. The ink pads 2a, 2b are disposed within a frame 3 of the ink pad unit 1 and are located on opposite surfaces 4a, 4b of a partition plate 5 (see, for example, FIG Fig. 2A, 2B . 3B . 3C . 4 and 5 ) of the ink pad unit 1, which partition plate 5 separates the ink pads 2a, 2b from each other. In order to protect the ink pad 2a, 2b from falling out of the frame 3 and easy to be able to bring into the frame 3, the frame 3 consists of two separate, interconnected frame parts 3a, 3b, within which the ink pads 2a, 2b are added. That the frame 3 is composed of two frame parts 3a, 3b is in Fig. 1A indicated by a dividing line T. For holding the ink pads 2a, 2b, the one frame part 3a has at least one inwardly directed retaining projection 6a engaged with the ink pad 2a, and the other frame part 3b also has at least one inwardly projecting retaining projection 6b engaged with the ink pad 2b , The ink pad 2a is in the embodiment according to Fig. 1A is inserted or inserted through the opening of the frame part 3a opposite the retaining projection 6a and the ink pad 2b through the opening of the frame part 3b opposite the retaining projection 6b. After the ink pads 2 a, 2 b have been inserted into the frame parts 3 a, 3 b, the frame parts 3 a, 3 b are connected to one another, for example, by means of interlocking latching elements 12.

The frame 3 has interconnected side walls 7, 8, 9, 10 which together substantially assume the shape of a rectangle. In this case, the frame part 3a partial side walls 7a ... 10a and the frame part 3b partial side walls 7b ... 10b. The side walls 7 ... 10 extend between the mutually opposite circumferential edges 11a, 11b of the frame 3, wherein the height H of the side walls 7 ... 10 and the height H of the frame 3 by the distance between the peripheral edges 11a , 11b of the frame 3 is fixed. The height H of the frame 3 is at the same time the thickness H of the frame 3. The height H of the frame 3 or the height (thickness) of the ink pad unit 1 is for example between 7.2 and 7.4 mm, preferably 7.3 mm, with it the ink pad unit 1 has substantially the same thickness or height as a standard color pad and can be smoothly inserted into a stamp sized for standard color pads, for example, into a 7.6 mm high pick-up slot of a self-inking stamp. As in particular from Fig. 2A is apparent, sum of the heights Ha, Hb of the two frame parts 3a, 3b equal to the height H of the frame 3. The frame 3 has along its circumference U, ie along its circumferential, substantially rectangular edges 11a, 11b, a substantially constant height or thickness H on. Of course, in other embodiments, the side walls 7 ... 10 may have a different shape from a rectangular shape.

Fig. 1B shows the ink pad unit 1 from Fig. 1A in a turned state, in which the ink pad unit 1 about an axis D (see Fig. 1A ) was rotated 180 °.

Fig. 2A shows the ink pad unit Fig. 1A in a perspective view, in which the ink pads 2a, 2b have been omitted to represent the partition plate 5 can. The partition plate 5 is provided as a separating base in the frame 3 and spaced from the peripheral edges 11a, 11b of the frame 3, and by the retaining projections 6a, 6b. In the Fig. 2A and Fig. 2B Ink pads 2a, 2b, not shown, are provided between the side walls 7 ... 10 of the frame 3 and on opposite surfaces 4a, 4b (see FIG Fig. 3A ) of the partition plate 5 is arranged.

The retaining projections 6a, 6b extend for example in the Fig. 1A and 1B from the respective peripheral edge 11a, 11b of the frame 3 inwards. Likewise, the retaining projections 6a, 6b could extend from a position as close as possible to the peripheral edge 11a, 11b of the frame 3. Preferably, the retaining projections 6a, 6b extend substantially at right angles from the respective side wall 7... 10 with an optionally varying width BV inwards, so that each retaining projection 6a, 6b points in the direction of the side wall 7. Preferably, the retaining projections 6a, 6b are in the plane of the peripheral edges 11a, 11b.

Even if the retaining projections 6a, 6b, for example, in the Fig. 1A and 1B are formed as holder edges 6a1, 6b1, which extend along the entire circumference U of the respective frame part 3a, 3b, could according to a in Fig. 6 be provided simplified representation of the ink pad unit 1, that the retaining projections 6a, 6b extend only along part of the circumference U of the respective frame part 3a, 3b. In this case, at least one retaining projection 6a, 6b shorter than one of the side walls 7 ... 10 is formed. In particular, more than one holding projection 6a, 6b can be provided per side wall 7. If the retaining projections 6a, 6b extend only along a part of the circumference U of the respective frame part 3a, 3b, they may be in the form of tabs (see FIG Fig. 6 ) or pins are formed. The holding projections 6a, 6b or holder edges 6a1, 6b1 can have a width BV of a few millimeters, for example in the range from 1 mm to 5 mm, preferably in the range from 2 mm to 4 mm, this width BV along the circumference U of the frame parts 3a, 3b can vary.

Fig. 2B shows the ink pad unit 1 from Fig. 2A in a turned state, in which the ink pad unit 1 about an axis D (see Fig. 2A ) was rotated 180 °. It can also be seen that the partition plate 5 is arranged in the middle of the vertical extent H of the frame. The two ink pads 2a, 2b are for example in the FIGS. 2A and 2B the same thickness and the two frame parts 3a, 3b are the same size. In addition, interlocking locking elements 12 are provided on the frame 3 or on the frame parts 3a, 3b, with which the frame parts 3a, 3b, releasably, can be connected to one another by latching.

Fig. 3 shows the ink pad unit 1 from Fig. 1A in a view from above. The frame 3 or the stamp pad unit 1 has a longitudinal extension L and a width B extension.

Fig. 3A shows the ink pad unit 1 from Fig. 3 in a sectional view along the in Fig. 3 represented line AA. Clearly visible are the frame 3 consisting of the two separate, interconnected frame parts 3a, 3b, the partition plate 5 and the ink pads 2a, 2b. The partition plate 5 is arranged in the middle of the vertical extent H of the frame 3, so that the ink pads 2 a, 2 b are of the same thickness or the same height. Here, the ink pad 2a has a thickness DFa and the ink pad 2b has a thickness DFb. The two ink pads 2a, 2b and the separator plate 5 may together have a thickness H corresponding to a standard color pad. Should the facing away from each other tops Sa, Sb ( Fig. 1A, 1B and 7 ) of the two color pads 2a, 2b used in their position of use in frame 3 are not in a plane E (FIG. Fig. 1A, 1B and 3B ) with the peripheral edges 11a, 11b of the frame 3, it is favorable if the height H of the side walls 7 ... 10 or the height H of the frame 3 corresponds to the thickness or height of a standard color pad.

Fig. 3B shows in contrast to Fig. 3A an ink pad unit 1 in a sectional view in which the partition plate 5 is located outside the center of the height extent H of the frame 3, so that the ink pads 2a, 2b are formed to have different thicknesses and different heights. More specifically, the ink pad 2a as the main pad has a larger thickness DFa than the pad cushion 2b having the thickness DFb.

Fig. 4 shows an ink pad unit 1, omitting the ink pads 2a, 2b, with separate frame parts 3a, 3b. In contrast to the representations in the Fig. 1A to 3C , in which the frame 3 is subdivided in the direction of its height extension or thickness H into the two frame parts 3a and 3b is in Fig. 4 the frame 3 in the direction of its longitudinal extent L in the two frame parts 3a, 3b divided. The partition plate 5 can, as in Fig. 4 can be seen, divided into two partial plates 5a, 5b be, or, as in the FIGS. 2A and 2B , be formed in one piece. In Fig. 4 is the partial plate 5b only to a part of the underlying components of the ink pad unit 1 to recognize, shown partially cut out. Regardless of the direction in which the frame 3 is divided into the frame parts 3a, 3b, the one-piece or multi-part partition plate 5 is formed separately from the frame parts 3a, 3b.

Fig. 5 shows another ink pad unit 1, omitting the ink pads 2a, 2b, wherein the frame parts 3a, 3b are already connected to each other. In this embodiment, the frame 3 is divided in the direction of its width extension B into the two frame parts 3a, 3b, which is indicated by the dividing line T. The partition plate 5 is integrally formed in this example and only to be able to recognize a part of the underlying components of the ink pad unit 1, shown partially cut out.

Fig. 7 shows an ink pad unit 1 according to Fig. 1A in an exploded view. In order to assemble the ink pad unit 1, for example, a paint pad 2b is set in the frame part 3b, so that the ink pad 2b is abutted against the holding projection 6b. Thereafter, the partition plate 5 is placed on the ink pad 2b and placed on the partition plate 5, the other ink pad 2a. Subsequently, the frame part 3a is placed over the ink pad 2a, so that the ink pad 2a is applied to the holding projection 6a, and with the frame part 3b, for example by means of an in Fig. 7 not shown locking connection, connected. The locking connection can be formed in a conventional manner with a hook and a groove or undercut.

Claims (10)

1. Stamp pad unit (1) for a self-inking stamp, comprising two ink pads (2a, 2b) that are arranged within a frame (3), rest against mutually opposite surfaces (4a, 4b) of a partition plate (5) and are thereby separated from one another, characterised in that the frame (3) consists of two separate, interconnected frame parts (3a, 3b) within which the ink pads (2a, 2b) are accommodated, at least one frame part (3a, 3b), preferably each of the frame parts (3a, 3b), having at least one inwardly directed retaining projection (6a, 6b) for holding an ink pad (2a, 2b) that engages with the ink pad (2a, 2b), and the two frame parts (3a, 3b) comprising releasably interlocking latching elements (12) for their mutual connection, the partition plate (5) being formed separately from the frame parts (3a, 3b).
2. Stamp pad unit according to claim 1, characterised in that the sum of the heights (Ha, Hb) of the two frame parts (3a, 3b) is substantially equal to the height (H) of the frame (3).
3. Stamp pad unit (1) according to either claim 1 or claim 2, characterised in that the retaining projection (6a, 6b) is a retaining edge (6al, 6bl) which extends at least along a part of the periphery (U) of the frame part (3a, 3b), preferably along the entire periphery (U) of the frame part (3a, 3b).
4. Stamp pad unit (1) according to any of claims 1 to 3, characterised in that the partition plate (5) is liquid-tight.
5. Stamp pad unit (1) according to any of claims 1 to 4, characterised in that the partition plate (5) consists of metal, for example steel.
6. Stamp pad unit (1) according to any of claims 1 to 4, characterised in that the partition plate (5) consists of a rigid plastics material, for example polyoxymethylene.
7. Stamp pad unit (1) according to any of claims 1 to 6, characterised in that the two ink pads (2a, 2b) are the same thickness.
8. Stamp pad unit (1) according to any of claims 1 to 6, characterised in that one of the ink pads (2a), as a main pad, has a greater thickness (DFa) than the other ink pad (2b) which forms a spare pad.
9. Stamp pad unit (1) according to any of claims 1 to 8, characterised in that the two frame parts (3a, 3b) are the same size.
10. Stamp pad unit (1) according to any of claims 1 to 9, characterised in that the two ink pads (2a, 2b) are impregnated with different colours.

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