Self-inking stamp with reinforcing beam

Abstract

The invention relates to a self-inking stamp (1) comprising a lower part (2) in which a stamp unit (4) is mounted, which stamp unit is coupled to an actuating part that can be moved relative to the lower part (2), said lower part (2) comprising two side parts (5) that are connected to each other at the bottom-side ends (6) of the lower part (2) by means of at least one cross-member, according to the invention, the cross-member comprises a metal reinforcing element (7) which is formed separately from the side part (5), is accommodated in a receptacle (9) of the cross-member and is connected to the side part (5) via the receptacle (9). The invention further relates to a method for reinforcing a cross member of a self-inking stamp (1).

Description

Technical Field

[0001] The present invention relates to a self-inking stamp comprising a lower part in which a stamp unit is mounted, coupled to an operating part that is movable relative to the lower part. The lower part has two side parts that are connected to one another at their ends on the bottom side of the lower part by at least one cross member, which includes a metal reinforcement element. In particular, the present invention relates to self-inking stamps having side parts that are at least partially made of metal. These are generally particularly durable and reliable stamps designed for frequent and prolonged use.

[0002] The invention also relates to a method for strengthening the crossbar of such a self-inking stamp. Background Art

[0003] Self-inking stamps typically include a closed, surrounding frame at their bottom ends, which, when in use, face the substrate to be printed. The frame essentially consists of the bottom ends of two side members and a crossbar extending between them. The crossbar is designed to be small transverse to its longitudinal extent to allow unimpeded passage of the stamp plate or type unit through the opening defined by the frame and to provide access to the stamp plate or type unit by the user. Therefore, if the thin crossbar is made of plastic, it can bend or break permanently during stamp handling, especially with careless or improper use. To avoid this, it is known to form the crossbar from metal, but this complicates stamp manufacturing because it must be welded to the side members. Alternatively, the crossbar is formed from plastic and reinforced with metal reinforcements that are integrally manufactured with the side members. The side members and crossbar are cut from a single piece of sheet metal. Due to the required opening for passage and access to the stamp plate or type unit, manufacturing the stamp from a single piece of sheet metal results in wasted metal, which increases the stamp's manufacturing cost.

[0004] EP3307546B1 discloses a stamp having a frame and a positioning frame, wherein the positioning frame is used to reduce the size of the interior of the frame. Reinforcement strips are arranged inside the frame to improve stability.

[0005] US Pat. No. 1,275,893 A discloses a self-inking hand stamp having side plates made of sheet metal which are connected to each other on the bottom side by screws.

[0006] WO 2016 / 197172 A1 shows a self-inking stamp having a combination of plastic and metal components, the metal components being arranged so as to be visible externally.

[0007] WO 87 / 04980 A1 and US 2010 / 263560 A1 each show a self-inking stamp having a lower part made of metal, which comprises mutually opposing side walls and connecting rods connecting the side walls to each other at their lower ends. Summary of the Invention

[0008] The object of the present invention is to provide a self-inking stamp of the type mentioned at the outset and a method for reinforcing a crossbar of a self-inking stamp which avoid or at least reduce the aforementioned disadvantages. In particular, the crossbar of the self-inking stamp should be resistant to bending and breaking and at the same time be simple and cost-effective to manufacture.

[0009] To this end, the invention provides a self-inking stamp as claimed in claim 1 and a method as claimed in claim 13. Advantageous embodiments and developments are specified in the dependent claims.

[0010] According to the invention, this object is achieved by a self-inking stamp, wherein a reinforcing element is formed separately from the side parts, which is accommodated in a receptacle of the crossbeam and is connected to the side parts via the receptacle. The self-inking stamp thus comprises a lower part in which a stamp unit is mounted. The stamp unit comprises at least one stamp relief, i.e. a stamp plate or type unit, which carries the outline or symbols (letters, numbers, characters) to be depicted during stamping. The self-inking stamp further comprises an operating part, such as a handle, which is movable relative to the lower part and is connected to the stamp unit. By pressing the operating part in the direction of the substrate to be printed, the stamp unit descends, rotates about a turning axis, and the stamp relief comes into contact with the substrate to be printed. The lower part comprises two side parts, each of which can have a guide for the turning axis.

[0011] To increase the stability of the stamp, the side parts are connected to one another at their ends on the bottom side of the lower part by at least one crossbeam comprising a metal reinforcement element. For example, the crossbeam reliably determines the distance between the side parts. The crossbeam is preferably arranged perpendicular to the main extension plane of the side parts.

[0012] If the reinforcing elements are integrally formed with the side members, the sheet metal comprising the side members and the reinforcing elements must be cut to size, and the reinforcing elements must be bent about a horizontal or vertical axis. Besides the associated effort, the sheet metal waste also represents a cost penalty. On the other hand, if the reinforcing elements are manufactured separately and welded to the side members, the required welding equipment increases costs.

[0013] According to the present invention, the reinforcement elements are formed separately from the side members, accommodated in the receptacles of the cross member, and connected to the side members via the receptacles. Consequently, the reinforcement elements are manufactured separately from the side members and can be purchased at low cost. Due to the separate design of the reinforcement elements, they can have a greater thickness than the side members (i.e., a larger diameter in a cross-section perpendicular to the side members and the bottom side). This allows for greater rigidity compared to solutions in which the side members and reinforcement elements are formed, for example, from sheet metal blanks and therefore have the same thickness.

[0014] To connect to the side members, the reinforcement elements are housed in receptacles in the crossbar and connected to the side members via the receptacles. This increases the stability, particularly the bending strength, of the crossbar compared to crossbars without metallic reinforcement elements. The connection between the reinforcement element and the side members via the receptacles preferably does not require additional metal connecting elements (screws or rivets) and can be manufactured without additional metalworking steps (such as welding, riveting, or tumbling). The receptacles do not necessarily restrict all degrees of freedom of the reinforcement element. Essentially, it is sufficient to properly support the reinforcement element on the underside of the stamp and prevent displacement between the stamp plate and the base, and any associated interference with the stamp's function. Alternatively, the reinforcement element can be mounted movably in its longitudinal direction, i.e., along and within the crossbar, as long as the reinforcement element is at least partially arranged within the crossbar and thus contributes to its rigidity or resistance ("reinforcing" the crossbar). The possibly rounded reinforcement element can also be free to rotate about its longitudinal axis and does not necessarily need to be secured by a receptacle.

[0015] It should be noted that the bottom end of the lower member does not necessarily have to extend within a single plane; that is, it can have sections at different heights above the substrate to be printed. For example, when the stamp is placed on the substrate to be printed, the crossbeam forming part of the bottom end of the lower member can be slightly farther from the substrate than the lower end of the side member. The crossbeam can have a small cross-sectional dimension so that the stamp plate carrier and / or type unit mounted in the lower member can be easily accessed from above. However, the crossbeam can also be part of the closed side wall of the lower member.

[0016] If references to positions and directions are made in this specification, these are to be understood in relation to the stamp's position of use, i.e., the imprinting position, in which the stamp is placed on the substrate to be printed. In particular, the term "upper" refers to the position near the stamp's operating elements, while "lower" refers to the position near the stamp's bottom contact surface. The term "vertical" refers to the direction of gravity.

[0017] According to a preferred embodiment of the present invention, each side member is connected to each other at the end of the bottom side of the lower member by two crossbeams, each of which has a metal reinforcement element, thereby forming an opening between the side member and the crossbeam for the passage of the seal relief of the seal unit, wherein the reinforcement element is formed separately from the side member, accommodated in the receptacle of the crossbeam and connected to the side member via the receptacle. The stability of the seal can be further increased by providing two crossbeams (which are preferably arranged perpendicular to the main extension plane of the side member). In addition, the seal including two crossbeams can be placed particularly reliably on the substrate. When the seal is placed on the substrate, the crossbeams also facilitate the alignment of the seal, for example relative to the edge of the document or relative to the character line or workbench frame. The crossbeams are sufficiently spaced apart from each other to form an opening between the side member and the crossbeam for the passage of the seal relief of the seal unit.

[0018] If the receptacle is made of plastic, it can be manufactured cost-effectively with a favorable cross-sectional profile (particularly for connection to the side parts) and has a low weight. Thus, for example, the receptacle can be formed by one or two plastic retaining elements (one for each side part), which are connected to the side parts (individually) and in which the reinforcement element is retained. Both connections—first, between the side parts and the plastic retaining elements, and second, between the plastic retaining elements and the reinforcement element—can be form-fitting connections. At least one of these connections can be a snap-fit ​​connection, which can be manufactured particularly simply and cost-effectively due to the flexibility of the plastic.

[0019] To facilitate the placement of the reinforcement element in the receptacle, the receptacle advantageously comprises a housing composed of at least two interconnected crossbar components made of plastic. The reinforcement element can thus be accommodated between the crossbar components, wherein the crossbar components remain separated from one another or at least partially connected to one another during the placement of the reinforcement element. The housing can be formed over the entire surface or have through-holes. For example, the two interconnected crossbar components can be designed so that, when connected, they form a tube segment that extends, for example, along a portion of the distance between the two side components, particularly along at most one-third, at most one-fifth, or at most one-tenth of this distance. The reinforcement element can be accommodated and retained in the tube segment, which can also be partially open circumferentially. This retention can be achieved, for example, by form-locking (e.g., snapping the reinforcement element into one or more receptacles), force-locking (e.g., clamping), or by adhesive bonding.

[0020] To further simplify the positioning of the reinforcement element, the receptacle can have two housings, each consisting of at least two interconnected cross-members made of plastic, which are mounted on different side parts. For example, the housing can be designed as a tube section extending in the longitudinal direction, which extends, for example, along a portion of the side part distance between the two side parts, in particular along at most one third, at most one fifth, or at most one tenth of this side part distance.

[0021] Preferably, each cross member includes an outer surface and an inner surface opposite the outer surface and concave toward the outer surface. When the cross members are connected to one another, the concave inner surface forms a receiving portion that serves as a receiving channel. Thus, the receiving portion can be designed as a receiving channel, wherein the concave, i.e., curved, inner surfaces of the connected cross members form a channel path for the receiving channel. Preferably, the receiving channel extends along the entire side member distance between the two side members.

[0022] Furthermore, it can be provided that the crossbar components of each crossbar are an upper crossbar component and a lower crossbar component, and that the lower crossbar component additionally extends below the side components and together form a closed frame. The frame extending below the upper crossbar component and below the side components can have a flat bottom surface and / or stamp feet protruding downward from the bottom surface to facilitate placement on the substrate to be printed. In particular, the side components can be placed on the frame. To this end, the frame can have insertable elements, for example tongue-shaped, that protrude upward, i.e., toward the operating components, which engage with the side components and position the frame relative to the side components. The frame can also include latching elements that engage with complementary latching elements in the side components and securely hold the frame to the side components.

[0023] To reliably support the reinforcement element, both side members preferably include a recessed portion that continues each receiving portion, in particular each receiving channel, and in which the reinforcement element is received, in particular mounted. For example, the recessed portion can have the same cross-sectional profile as the receiving portion, in particular the receiving channel. In particular, the central axis of the receiving portion, for example, the pipe section or the receiving channel, can coincide with the central axis of the recessed portion.

[0024] For a particularly simple design, it can be provided that the reinforcing element is a rod, in particular, having a rounded, particularly preferably circular, cross-section (i.e., a round rod). The (preferably cylindrical) rod can have a length that is less than, equal to, or greater than the distance between the two side parts. For example, the length of the rod can be 100% to 120% of the distance between the side parts (when passing through or underneath the side parts), or at most 80%, or at most 60%, or at most 40%, or at most 20%. The diameter of the rod can be between 1 mm and 4 mm, in particular between 2 mm and 3 mm.

[0025] If the rod is made of stainless steel, it can also be used in wet environments without the risk of rusting. Therefore, the electroplating step for making the rod rust-proof can be omitted.

[0026] In order to simplify production and avoid tilting during the reception of the reinforcing element, it is preferred that the receiving portion, in particular the receiving channel, and preferably the recess, has a rounded, preferably circular, cross section. In particular, the recess can be designed as a tube cut in the longitudinal direction and can therefore have a section of a circle in cross section.

[0027] To prevent dirt from entering between the receptacle and the reinforcing element, it is advantageous if the reinforcing element is substantially completely covered by the crossbar component. It should be noted that substantially complete coverage allows for smaller openings, such as narrow slots, to remain after the crossbar components are connected to one another. Substantially complete coverage also creates a visually appealing impression of the inked stamp.

[0028] According to another embodiment, the crossmembers forming the receptacles, in particular the receiving channels, can be detachably connected to one another, in particular by means of a snap-on connection. The detachable connection allows the reinforcing element to be removed again, if necessary, after the connected crossmembers have been separated. The snap-on connection allows, in particular, a tool-free, quick, and reliable connection of the crossmembers to one another. For the snap-on connection, for example, one of the crossmembers can have a spring-loaded hook element that engages in a complementary hook receptacle on the other crossmember.

[0029] The above-mentioned object is also achieved by a method for reinforcing a crossbeam of a self-inking stamp formed according to the aforementioned description, wherein, according to the invention, a side part is provided with at least a part of a receptacle, and a reinforcing element is then installed in the receptacle. Before the reinforcing element is installed in the receptacle, the receptacle or at least a part thereof can already be securely, in particular permanently, fastened to the side part, or can be provided separately from the side part. In particular, a separately formed reinforcing element can be inserted into the receptacle. With regard to the features of the method, reference is also made to the aforementioned description of the self-inking stamp, insofar as this helps to understand the method and insofar as the features of the method can be derived from this description of the self-inking stamp. Likewise, with regard to the features of the self-inking stamp, reference is also made to the description of the method.

[0030] According to a preferred embodiment of the present method, a reinforcement element can be inserted into one crossbeam component of the crossbeam, and this crossbeam component, with the reinforcement element inserted therein, can be connected to another crossbeam component of the crossbeam. Thus, a separately provided reinforcement element can be quickly inserted between the crossbeam components of the crossbeam without requiring screwing, gluing, or welding. In other embodiments, the reinforcement element inserted between the crossbeam components can also be bonded to the crossbeam components. After the reinforcement element is inserted, the crossbeam components are connected to each other, and the receptacle is thus closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The invention will be explained in more detail below based on preferred, non-limiting exemplary embodiments with reference to the accompanying drawings. The drawings show:

[0032] Figure 1 A self-inking stamp according to the invention is shown in a cut-away side view;

[0033] Figure 1A yes Figure 1 An enlarged cross-sectional view of the beam of the self-inking seal;

[0034] Figure 2 A schematic partially exploded view is shown. Figure 1 A self-inking stamp of FIG. 1 , which shows a separate closed frame and a separate reinforcing element;

[0035] Figure 3 The diagram shown from below Figure 1 The lower part of the self-inking seal;

[0036] Figure 4 yes Figure 3 a side view of the lower part;

[0037] Figure 5 A schematic diagram viewed obliquely from above shows a reinforcing element with a metal inserted therein. Figure 2 framework;

[0038] Figure 6 The side view shows a metal reinforcement element inserted into the Figure 2 framework; and

[0039] Figure 7 The view from above (top view) shows the structure with the metal reinforcement element inserted therein. Figure 2 framework. DETAILED DESCRIPTION

[0040] Figure 1The self-inking stamp 1 is shown in a rest position, standing on a substrate (not shown), and in particular has an upper impact inking and turning mechanism W, which will not be discussed in detail below. The self-inking stamp 1 comprises a lower part 2 located below the upper part O, in which a stamp unit 4 is mounted, which is coupled to an operating part 3 that is movable relative to the lower part 2. Figure 1 In the example shown, the operating part 3 is formed with a handle 3a and is formed from the upper end of the inking stamp 1. In the example shown, the stamp unit 4 has a movable type unit 4a, but in embodiments not shown it can also have a stamp plate. The lower part 2 includes two side parts 5 (see also Figure 3 ), the side parts are connected to each other at the bottom-side ends 6 of the lower part 2 by at least one crossbar 8 with a metal reinforcement element 7. In the example shown, the side parts 5 are designed to guide the stamp unit 4 during the stamping process. In order to be able to produce the self-inking stamp 1, in particular the crossbar 8, in the simplest possible steps and with minimal material, the reinforcement element 7 is formed separately from the side parts 5 (see Figure 2 ), is received in the receiving portion 9 of the cross member 8 and is connected to the side member 5 via the receiving portion 9.

[0041] In the example shown Figures 1 to 7 In the embodiment shown, two crossbars 8 are provided. Thus, the side parts 5 are preferably connected to one another at the bottom-side ends 6 of the lower part 2 via two crossbars 8, each of which has a metallic reinforcement element 7. This creates an opening 10 between the side parts 5 and the crossbars 8, which allows a stamp relief 11, i.e., the stamp plate of the stamp unit 4 or, in the illustrated example, the type unit 4a, to pass through in order to produce an embossed impression on the surface to be printed beneath the self-inking stamp 1. In the illustrated example of two crossbars 8, the reinforcement element 7 is also designed separately from the side parts 5, accommodated in a receptacle 9 of the crossbar 8, and connected to the side parts 5 via the receptacle 9.

[0042] In accordance with Figure 2 In the example of FIG. 1 , it can be seen particularly clearly that the reinforcing element 7 can be a rod 7a, which in particular has a smooth, particularly preferably circular cross section, ie can be a cylindrical rod 7a. The rod 7a can be made of stainless steel. The longitudinal direction of the reinforcing element 7 is determined by Figure 2 The arrow L in shows that the length of the reinforcing element 7 measured in the longitudinal direction L can be greater than, equal to or less than the distance A between the side parts 5. Even if this length is less than the distance A, the reinforcing element 7 can absorb part of the bending forces acting on the crossbeam 8.

[0043] Figure 1 、 1A2 shows that the housing 9 comprises a housing 12 consisting of at least two cross-beam members 13 (just two cross-beam members in the illustrated figure) connected to each other. The cross-beam members 13 are preferably formed of plastic. For example, as shown in FIG. Figure 1A As can be seen from the enlarged side view of the crossbeam 8 in FIG, each crossbeam member 13 preferably includes an outer surface 14 and an inner surface 15 opposite to the outer surface 14 and concave toward the outer surface 14. When the crossbeam members 13 are connected to each other, the concave inner surface 15 forms the receiving portion 9 as the receiving channel 9A. Figure 1 、 2 3 , it can also be seen that the reinforcement element 7 can be substantially completely covered by the cross member 13 .

[0044] The cross section of the accommodation portion 9, in particular the accommodation channel 9a, can be smooth, preferably circular, as shown in FIG. Figure 1A It is particularly advantageous if the reinforcing element 7 received in the receptacle 9 also has a rounded, particularly preferably circular, cross section. This cross section facilitates the assembly of the reinforcing element 7 since no attention has to be paid to the orientation about the longitudinal axis.

[0045] exist Figure 1 、 1A As can also be seen in Figures 2 and 3, each crossbar part 13 of each crossbar 8 can be an upper crossbar part 13a and a lower crossbar part 13b, wherein the lower crossbar part 13b can additionally extend below the side parts 5 and can together form a closed frame 16. The frame 16 can have upwardly protruding, i.e., toward the operating part 3, insertable elements 17, for example in the form of tongues, which can engage with the side parts 5 to position the frame 16 relative to the side parts 5. In addition, the frame 16 can have latching elements 18 that can engage with complementary latching elements (not shown) in the side parts 5 to securely hold the frame 16 on the side parts 5. The side parts 5 can thus be placed on the frame 16. The frame 16 can also have stamp feet 20 on its bottom side 19, which faces the substrate to be printed.

[0046] As from Figure 3 As can be seen in FIG, at least one side part 5, in particular both side parts 5, can have a recess 21 which continues each receiving portion 9, in particular each receiving channel 9a, in which the reinforcing element 7 is received, in particular mounted. Figure 3 In the example shown, the reinforcing element 7 has not yet been accommodated in the accommodation portion 9. Figure 3 , only the upper cross member 13a is shown, so the receiving portion 9, in particular the receiving channel 9a, is not fully shown. The recess 21 can be rounded in cross section, preferably having the shape of a circle segment.

[0047] exist Figure 41 shows a side view of the lower part 2, which includes a portion of the receiving portion 9 or the receiving channel 9a. This portion of the receiving portion 9 or the receiving channel 9a is formed by the upper cross member 13a. By connecting the upper cross member 13a to the upper cross member 13a, for example Figure 5 The receiving portion 9 is formed or closed by the lower cross member 13b shown in FIG.

[0048] exist Figure 2 、 3 5 that the cross-members 13 forming the receptacles 9, in particular the receptacle channels 9a, are detachably connected to one another, in particular by means of a snap-on connection 22. The snap-on connection 22 can, for example, comprise a spring-mounted hook element 23 on one of the cross-members 13, which engages in a complementary hook receptacle 24 on the other cross-member 13.

[0049] In order to reinforce the cross member 8 or the two cross members 8 , the side parts 5 are provided with at least a portion of a receptacle 9 , and the reinforcing element 7 is then installed in the receptacle 9 . Figure 5 The frame 16 is shown in a perspective view from above, wherein Figure 2 Unlike the illustration in FIG, the reinforcement element 7 has already been inserted into the frame 16, in particular into the lower cross member 13b. Similarly, the reinforcement element 7 can first be inserted into the upper cross member 13a. The cross member 13 with the inserted reinforcement element 7 is then connected, for example, latched, to another, still empty cross member 13 of the cross member 8, thereby closing the receptacle 9 with the inserted reinforcement element 7 and forming the completed cross member 8.

[0050] Despite Figures 1 to 7 The self-inking stamp 1 shown in FIG has two crossbars 8, but the self-inking stamp 1 can also have only one crossbar 8. Figures 1 to 7 Unlike the illustration in FIG, the receiving portion 9 of each cross member 8 can be formed not as a continuous, elongated receiving channel 9a, but rather as two pipe sections fastened to the side members 5 and substantially corresponding to a receiving channel from which a portion between its ends has been removed. In this case, the reinforcing element 7 is only partially covered by the receiving portion 9.

Claims

1. A self-inking stamp (1) comprising a lower part (2) in which a stamp unit (4) is mounted, which is coupled to an operating part (3, 3a) movable relative to the lower part (2), the lower part (2) comprising two side parts (5) which are connected to one another at their ends (6) on the bottom side of the lower part (2) by at least one crossbeam (8), the crossbeam comprising a metal reinforcement element (7), characterized in that The reinforcing element (7) is formed separately from the side part (5), is received in a receptacle (9) of the cross member (8), and is connected to the side part (5) via the receptacle (9).

2. The self-inking stamp (1) according to claim 1, characterized in that The side parts (5) are connected to each other at the ends (6) on the bottom side of the lower part (2) by two crossbeams (8) each including a metal reinforcement element (7), thereby forming an opening (10) for the stamp relief (11) of the stamp unit (4) to pass through between the side parts (5) and the crossbeam (8), and the reinforcement element (7) is formed separately from the side parts (5), and the reinforcement element is accommodated in a receiving portion (9) of the crossbeam (8) and is connected to the side parts (5) via the receiving portion (9).

3. The self-inking stamp (1) according to claim 1 or 2, characterized in that The receiving portion (9) is formed from plastic.

4. The self-inking stamp (1) according to claim 3, characterized in that The receiving portion (9) comprises a housing (12) made of at least two interconnected cross-members (13), the cross-members being made of plastic.

5. The self-inking stamp (1) according to claim 4, characterized in that Each cross member (13) includes an outer surface (14) and an inner surface (15) opposite to the outer surface (14), wherein the inner surface is concave toward the outer surface (14), wherein the concave inner surface (15) forms a receiving portion (9) as a receiving channel (9a) when the cross members (13) are connected to each other.

6. The self-inking stamp (1) according to claim 4 or 5, characterized in that The cross member parts (13) of each cross member (8) are an upper cross member part (13a) and a lower cross member part (13b), and the lower cross member part (13b) furthermore extends below the side parts (5) and together form a closed frame (16).

7. The self-inking stamp (1) according to any one of claims 1 to 6, characterized in that Both side parts (5) have a recess (21) continuing each housing (9) and in which the reinforcing element (7) is accommodated.

8. The self-inking stamp (1) according to claim 7, characterized in that The recesses (21) all continue the accommodating channel (9a).

9. The self-inking stamp (1) according to claim 7 or 8, characterized in that The reinforcing element (7) is mounted in the recess (21).

10. The self-inking stamp (1) according to any one of claims 1 to 9, characterized in that The reinforcing element (7) is a rod (7a).

11. The self-inking stamp (1) according to claim 10, characterized in that The reinforcing element (7) has a rounded cross section.

12. The self-inking stamp (1) according to claim 11, characterized in that The cross-section is circular.

13. The self-inking stamp (1) according to any one of claims 10 to 12, characterized in that The rod (7a) is made of stainless steel.

14. The self-inking stamp (1) according to any one of claims 1 to 13, characterized in that The cross section of the accommodating portion (9) is smooth.

15. The self-inking stamp (1) according to claim 14, characterized in that The cross section of the accommodating channel (9a) and / or the recess (21) is smooth.

16. The self-inking stamp (1) according to claim 14, characterized in that The cross section of the receiving portion (9) and / or the receiving channel (9a) and / or the recess (21) is circular.

17. The self-inking stamp (1) according to any one of claims 4 to 6, characterized in that The reinforcement element (7) is substantially completely covered by the cross member (13).

18. The self-inking stamp (1) according to any one of claims 4 to 6, characterized in that The crossbeam parts (13) forming the receiving portion (9) are detachably connected to each other.

19. The self-inking stamp (1) according to any one of claims 4 to 6, characterized in that The crossbeam components (13) forming the accommodating channel (9a) are detachably connected to each other.

20. The self-inking stamp (1) according to any one of claims 18 or 19, characterized in that The cross member parts (13) are connected to one another via a latching connection (22).

21. A method for strengthening a crossbar (8) of a self-inking stamp (1) according to any one of claims 1 to 20, characterized in that A side part (5) and at least a portion of a receiving portion (9) are provided, and the reinforcing element (7) is then installed in the receiving portion (9).

22. A method for strengthening a crossbar (8) of a self-inking stamp (1) according to any one of claims 4 to 6, characterized in that The reinforcing element (7) is inserted into one crossbeam part (13) of the crossbeam (8), and the crossbeam part (13) with the reinforcing element (7) inserted therein is connected to the other crossbeam part (13) of the crossbeam (8).

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