Stamp and shaft element for a stamp

Through the design of the guide tabs and the elastic deformation connecting tabs, the problem of complex seal assembly is solved, a fast and easy assembly process is achieved, costs are reduced and operating efficiency is improved.

CN116568519BActive Publication Date: 2025-10-14TRODAT GMBH
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Patent Information

Application Number
CN202180081525.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-12-03
Filing Date
2021-11-09
Publication Date
2025-10-14
Estimated Expiration
2041-11-09

AI Technical Summary

Technical Problem

The assembly process of existing seals requires multiple parts, resulting in complex and time-consuming assembly, especially the installation of the shaft support element and the lock, which requires manual operation.

Method used

The shaft supporting element and the locking head are fixed in the upper part by using a guide piece and an elastically deformable connecting piece, and quick installation is achieved by insertion and locking. The base of the shaft supporting element is provided with a long hole and an angled insertion surface to guide the shaft, and the locking head extends through the locking head opening for easy operation.

Benefits of technology

The seal can be assembled quickly and easily, the number of parts and operation steps are reduced, the assembly efficiency and visibility are improved, and the production cost is reduced.

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Abstract

The invention describes a stamp (1) comprising at least one stamp assembly and a stamping unit (4), wherein the stamp assembly is formed from an upper part (2) and a lower part (3) with a stamp receiving element (5), and the stamping unit (4) is connected to the upper part (2) in a kinematic connection in the lower part (2) by means of a tilting mechanism (7), preferably with a slide rail (8). The stamping unit (4) is supported in a shaft support element (11) by means of a continuous shaft (9), wherein a text plate and / or MB unit (mounted color tape assembly) mounted at the stamping unit (4) in a rest position (10) rests on a stamp (6) in the stamp receiving element (5) that is wetted with stamping ink and the stamping unit (4) with the text plate and / or MB unit can be displaced into a stamping position by means of the tilting mechanism (7) in a stamping process for producing a stamp impression in the stamping position. The shaft support element (11) can be inserted and fixed, in particular latched, into the upper part (2) by means of a guide tab (17), wherein a locking button (21) for fixing the stamping position is connected to the shaft support element (11) by means of an elastically deformable connection tab (20).
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Description

TECHNICAL FIELD

[0001] The present invention relates to a stamp and a shaft element for a stamp as described herein. BACKGROUND

[0002] From AT 513900 A1 a self-inking stamp is described, which has a housing formed by an upper part and a lower part, wherein there is a stamping unit supported in the upper part by a shaft, which is movable relative to the housing. Here, the shaft is held on both sides of the upper part by means of insertable shaft support elements. Furthermore, the shaft support elements have openings or recesses for a lock to be fixed and insertable in the upper part, so that the lock can be pushed through the openings or recesses in the shaft support elements and thereby engages with the lower part when the lock is operated, thereby holding the stamp in a stamping position.

[0003] Here, it is disadvantageous that a very large number of parts is required for the stamp, thereby resulting in a very high assembly outlay. It is often the case that, as a result, the very small parts, such as the shaft support elements and the lock, have to be installed into the housing, in particular into the upper part, manually, i.e. by hand.

[0004] Furthermore, from EP 1673229 B1 a self-inking stamp is described, which is likewise formed by an upper part, a lower part and a stamping unit coupled with the upper part. Here, the stamping unit is in turn fixed in the upper part by means of a shaft and a shaft support element, wherein the shaft support element serves at the same time as a lock, wherein the shaft support element is fixed in the upper part in a horizontally movable manner.

[0005] Furthermore, different stamps are known from the prior art, in which a support element is used as a shaft, wherein the shaft is mostly fixed by means of a fixing disc or a fixing element against falling out. Such a stamp is known, for example, from AT 515227 A1.

[0006] From AT 521730 A1 a so-called office self-inking stamp with a shaft support element is described. Here, the stamp has an arcuate upper part, which is in turn coupled with a lower part by means of a stamping unit. In the lower part, a shaft support element is fixed on the side, wherein the shaft support element has a long hole, in which a sliding bushing for the shaft is positioned and fixed in a movable manner. A lock for fixing the stamp in a predefined stamping position is here arranged centrally in the arcuate upper part in the region of a spherical handle. SUMMARY

[0007] It is an object of the present application to provide a stamp and a shaft bearing element for a stamp, wherein the above-mentioned disadvantages are avoided on the one hand and an easy and quick assembly is possible on the other hand.

[0008] The object is achieved by the present application.

[0009] The object of the present application is achieved by a stamp, wherein the shaft bearing element can be inserted and fixed, in particular latched, into the upper part by means of a guide tab, wherein a locking head for fixing the impression position is connected to the shaft bearing element by means of an elastically deformable connecting tab. It is advantageous here that in a single work step not only the shaft bearing but also the locking head can be installed in the upper part.

[0010] It is also advantageous in an embodiment that the guide tab for the shaft bearing element is designed on the side of the upper part which is assigned to the interior space of the upper part. It is achieved thereby that the shaft bearing is arranged in the interior space of the upper part and thus not visible from the outside.

[0011] It is also advantageous in an embodiment that the guide tab has a latching element, in particular a latching edge, for fixing the insertable shaft bearing element. It is achieved thereby that for the assembly only the insertion of the shaft bearing element is necessary, whereby a self-contained latching is achieved. Thus no own work step is necessary for the fixing.

[0012] However, it is also advantageous in an embodiment that the shaft bearing element can be inserted into the guide tab of the upper part from below. Thereby it is possible to achieve that the upper part is automatically equipped with a shaft bearing element.

[0013] However, it is also advantageous in an embodiment that on the upper part a locking head opening corresponding to the locking head is arranged. It is achieved thereby that the locking head can protrude outward through the housing of the upper part, so that the locking head can be easily handled.

[0014] It is also advantageous in an embodiment that the locking head of the shaft bearing element protrudes outward through the locking head opening in the case of an inserted shaft bearing element, wherein the locking head is flush with the outer surface of the side wall or protrudes beyond the outer surface of the side wall. It is achieved thereby that it can be easily recognized and handled by the user.

[0015] However, it is also advantageous that the shaft bearing element has a horizontally oriented slot or slot recess for receiving a shaft for the impression unit, wherein an angularly extending insertion surface is preferably arranged in the middle region. It is achieved thereby that the shaft is easily accommodated and supported.

[0016] Furthermore, the invention is implemented by a shaft bearing element, wherein one or more elastically deformable latching elements (15) are arranged on a base body and the locking head is connected to the base body by an elastically deformable connecting web.

[0017] It is advantageous here that the locking head for the lock is installed at the same time as the shaft bearing element. Thus, the shaft bearing and the lock can be installed in the upper part in one work step.

[0018] However, in an equally advantageous design variant, the shaft bearing element is designed as an integral plastic injection-molded part. This achieves a cost-effective production, since only one mold is required for the shaft bearing and the lock. Of course, as is customary, a plurality of shaft bearing elements can be produced at one time in this one mold.

[0019] In an advantageous design variant, an insertion face for the insertion of the shaft is arranged in the middle region of the long hole, which extends at an angle. This achieves, on the one hand, that the shaft is guided when it is inserted, in particular pressed in, and, on the other hand, that the angled extension of the insertion face facilitates the pressing apart of the side faces when the cover is imprinted for the insertion of the shaft.

[0020] In an advantageous design variant, two latching elements are arranged on the base body. This achieves that the shaft bearing element is latched in a guide rail on the upper part in such a way that it is simply pushed into the guide rail.

[0021] In an advantageous design variant, the two latching elements are formed on the base body on opposite sides of the insertion face, wherein the two latching elements extend away from the base body. This achieves that the component thickness of the shaft bearing element is kept very small, since the latching is done above the base body.

[0022] However, in an equally advantageous design variant, a connecting web for the locking head is connected to the base body between the two latching elements. This enables a very compact construction. Furthermore, it is also possible to arrange the locking head spaced apart with respect to the base body, which ensures the corresponding flexibility.

[0023] Finally, in an advantageous design variant, the shaft bearing is formed by a two-component injection-molded part, wherein the locking head is preferably composed of a different plastic than the remaining components. This achieves that the locking head, which the user always comes into contact with, is produced from a high-quality plastic with good grip properties, while the shaft bearing is preferably formed from mostly or completely recycled plastic. Hereby, great costs can be saved by the use of a two-component injection-molded part, since only a small part of the entire component has to be formed from the high-quality, expensive plastic. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The invention is described below in the form of exemplary embodiments, with the caveat that the invention is not limited to the exemplary embodiments or solutions shown and described.

[0025] Here it is shown:

[0026] Figure 1 A simplified schematic diagram shows an illustration of an assembled stamp, in particular a self-coloring stamp, in a rest position;

[0027] Figure 2 A simplified schematic diagram shows a side view of the seal in a rest position;

[0028] Figure 3a A diagram of the shaft support element is shown in a simplified schematic diagram;

[0029] Figure 3b A further illustration of the shaft bearing element, seen from the other side, is shown in a simplified schematic diagram;

[0030] Figure 3c A further illustration of a shaft for supporting an embossing unit in a shaft bearing element is shown in a simplified schematic diagram;

[0031] Figure 4 A simplified schematic diagram shows an illustration of the upper part without the shaft bearing element;

[0032] Figure 5 A simplified schematic diagram shows a diagram with an installed shaft support element;

[0033] Figure 6 A further illustration is shown in a simplified schematic diagram, with the shaft bearing element mounted, viewed from the other side. DETAILED DESCRIPTION

[0034] exist Figures 1 to 6 , a stamp 1, in particular a so-called self-coloring stamp 1, is shown, which comprises at least one stamp assembly, in particular an upper part 2 and a lower part 3, and a stamping unit 4, wherein an ink pad receiving element 5 for receiving an ink pad 6 is formed in the lower part 3. The stamping unit 4 is connected to the upper part 4 in a kinematic connection via a tilting mechanism 7, which preferably has a sliding groove track 8, in the lower part 3. In this case, the stamping unit 3 is supported by an axis 9 extending through the stamping unit 4. For the sake of completeness, it should be mentioned that an axis end or two axis elements can also be used when the stamping unit 4 is designed accordingly. It is important that the axis 10 or the axis end or the axis element must extend from the stamping unit 4 through the sliding groove track 8 into the upper part 2 in order to be able to be coupled to the upper part 2 there.

[0035] In accordance with Figure 1 In the rest position 10, a letter plate and / or a MB unit (mounting band assembly unit) (not shown) mounted on the stamping unit 3 rests against an ink pad 6 moistened with stamp ink in the ink pad receiving element 5, thereby receiving ink from the ink pad 6 in this position. During the stamping process to produce a stamp impression, the stamping unit 3, with the letter plate and / or MB unit in the stamping position, is moved into the stamping position by a tilting mechanism 7. To this end, the upper part 2 is pushed onto the lower part 3, and the stamping unit 4 is rotated, pressing a spring element (not shown) disposed between the two elements together. This subsequently ensures automatic return to the rest position 10. A detailed description of the tilting mechanism 7 and the stamp assembly, in particular the mutual displacement of the upper part 2 onto the lower part 3, will be omitted, as such tilting mechanisms are already known in the prior art for so-called self-coloring stamps 1. It is also possible to use a different type of turning mechanism 7 than the one shown, or to use a movable sliding guide track 8 in order to produce the stamp impression.

[0036] Furthermore, it should be pointed out that the solution according to the invention is not limited to the stamp shape shown, ie a rectangle, but other shapes of the stamp 1 , such as a square, an oval, a trapezoid, can also be used.

[0037] According to the present invention, a bearing element 11 is used to couple the stamping unit 4 to the upper part 2 or to position the bearing element. This has the advantage that the bearing element can be made of a compatible material, in particular plastic, for support and guidance, which can differ from the material of the upper part 2 and / or the lower part 3. Advantageously, a material with good sliding properties is used so that the stamping process can be carried out with low friction losses at the bearing element. Matching the material to the required properties also improves stamping comfort.

[0038] The shaft bearing element 11 has a base body 12 in which an elongated hole 13 or an elongated hole recess 13 is arranged for receiving and guiding the shaft 10. The elongated hole 13 or the elongated hole recess 13 extends horizontally to support the movement of the shaft 10 in the slotted guide rail 8 during the stamping process. Furthermore, at least one, preferably two, latching elements 14 having latching hooks 15 are arranged on the base body 12. In the exemplary embodiment shown, the latching elements 14 are also designed as guide elements 16 for insertion into guide tabs 17 in the upper part 2.

[0039] Furthermore, the shaft support element 11 has an insertion face 18 which extends at an angle and which supports the introduction of the shaft 10 into the elongated hole 13 or elongated hole recess 13, that is to say, the angled extension is formed in such a way that the insertion face extends from the elongated hole 13 or elongated hole recess 13 in the direction of the lower edge 19 of the base body 12, so that the insertion face has a smaller material thickness in the region of the lower edge 19 than in the region of the elongated hole 13 or elongated hole recess 13. As a result, the insertion face 18 is arranged on the opposite side of the base body 12 to the formed catch element 14.

[0040] Furthermore, on the opposite side to the insertion face 18, a locking head 21 composed of an elastically deformable connecting tab 20 is connected to the base body 12. Here, the connecting tab 20 is formed on the base body 12 between the two guide elements 16 of the catch element 14, so that it forms an integral component which can be installed in the upper part 2 in one work step. Here, the locking head 21 can have an operating element 22 which passes through a locking head opening 23 in the upper part 2.

[0041] In order to be able to install the shaft support element 11 in the upper part 2, the upper part 2 has corresponding guide tabs 17 into which the guide elements 16 of the catch element 14 are introduced. Furthermore, a catch element, in particular a catch edge 24, is arranged which corresponds to the guide tabs 17, on which the catch hooks 15 can hook, as in Figure 5 and 6 as can be seen. Here, the guide tabs 17 are arranged on the side which belongs to the interior space 26 on the side of the upper part 2. The shaft support element 11 is inserted from below into the guide tabs 17 and is caught by the catch edges 24 on the guide tabs 17, so that it can no longer be separated from the upper part 2 without a corresponding force being applied. The upper part 2 is then positioned above the lower part 3, the embossing unit 3 with the inserted shaft 9 or shaft end is inserted through the slide rail 8, and the shaft 9 is then positioned on the insertion face 18. By a corresponding pressure application to the embossing unit 3, the shaft 9 is pressed onto the insertion face 18, and the side 25 is then slightly pressed outwards until the shaft 9 bites into or engages in the elongated hole 13 or elongated hole recess 13, so that the side 25 is returned to the initial position again and the embossing unit 3 is installed.

[0042] At the same time, the locking head 21 is slightly deformed during the insertion or introduction of the shaft bearing element 11, so that the locking head is pushed along the inner surface of the side face 25 during the insertion until it snaps into or engages in the locking head opening 23, that is to say, the locking head 21 is slightly pressed backwards by the flexible connecting web 20 during the assembly, wherein the locking head is rotated back into the initial position and thus projects outwards through the locking head opening 23 upon reaching the final position of the shaft bearing element 11, in particular when the locking head 21 or the operating element 22 of the locking head 21 coincides with the locking head opening 23.

[0043] Furthermore, individual features or combinations of features from the different embodiments shown and described can also form independent, inventive or inventive solutions according to the application.

Claims

1. A stamp (1) comprising at least one stamp assembly and an embossing unit (4), wherein the stamp assembly is formed by an upper part (2) and a lower part (3) having an ink pad receiving element (5), and the embossing unit (4) is connected to the upper part (2) in a kinematically connected manner in the lower part (3) via a tilting mechanism (7), and the embossing unit (4) is supported in a shaft support element (11) via a continuous shaft (9) or shaft end or shaft element, wherein: In the rest position (10), the letter plate and / or the assembly belt assembly unit mounted on the stamping unit (4) rests on the ink pad (6) soaked with stamp ink in the ink pad receiving element (5), and during a stamping process for producing a stamp impression in the stamping position, the stamping unit (4) with the letter plate and / or the assembly belt assembly unit can be shifted into the stamping position by the tilting mechanism (7), characterized in that the shaft support element (11) can be inserted and fixed in the upper part (2) via a guide tab (17), wherein a locking head (21) for fixing the stamping position is connected to the shaft support element (11) via an elastically deformable connecting tab (20).

2. The seal (1) according to claim 1, characterized in that The guide web (17) for the shaft bearing element (11) is formed on a side surface (25) of the upper part (2) which is associated with an interior space (26) of the upper part (2).

3. The seal (1) according to claim 1 or 2, characterized in that: The guide web (17) has a latching element for securing the insertable shaft bearing element (11).

4. The seal (1) according to claim 1 or 2, characterized in that The shaft bearing element (11) can be inserted from below into the guide web (17) of the upper part (2).

5. The seal (1) according to claim 1 or 2, characterized in that: A locking head opening (23) corresponding to the locking head (21) is arranged on the upper part (2).

6. The seal (1) according to claim 2, characterized in that When the shaft bearing element (11) is inserted, the locking head (21) protrudes outward through the locking head opening (23), wherein the locking head (21) is flush with the outer surface of the side surface (25) or protrudes beyond the outer surface of the side surface (25).

7. The seal (1) according to claim 1, 2 or 6, characterized in that: The shaft bearing element (11) has a horizontally oriented elongated hole (13) or elongated hole recess (13) for receiving a shaft (9) for the embossing unit (4), in which an angularly extending insertion surface (18) is arranged.

8. The seal (1) according to claim 1, characterized in that The turning mechanism (7) has a sliding groove track (8).

9. The seal (1) according to claim 1, characterized in that The shaft bearing element (11) can be inserted and locked into the upper part (2) via guide webs (17).

10. The seal (1) according to claim 3, characterized in that The guide web (17) has a latching edge (24) for securing the insertable shaft bearing element (11).

11. The seal (1) according to claim 6, characterized in that When the shaft bearing element (11) is inserted, the operating element (22) of the shaft bearing element (11) projects outward through the locking head opening (23).

12. The seal (1) according to claim 7, characterized in that The angled insertion surface (18) is arranged in the middle region.

13. A shaft support element (11) for a stamp (1) according to any one of claims 1 to 12, the shaft support element being used to fix an embossing unit (4), comprising at least one base body (12), in which a horizontally extending elongated hole (13) or an elongated hole recess (13) is provided for receiving and guiding a shaft (9) or a shaft end, characterized in that One or more elastically deformable latching elements (14) are arranged on the base body (12), and a locking head (21) is connected to the base body (12) via an elastically deformable connecting web (20).

14. The shaft bearing element (11) according to claim 13, characterized in that The shaft bearing element (11) is designed as a one-piece plastic injection-molded part.

15. The shaft bearing element (11) according to claim 13 or 14, characterized in that An angular insertion surface (18) for inserting a shaft (9) is arranged in the central region of the elongated hole (13) or the elongated hole recess (13).

16. The shaft bearing element (11) according to claim 13 or 14, characterized in that Two latching elements (14) are arranged on the base body (12).

17. The shaft bearing element (11) according to claim 16, characterized in that The two latching elements (14) are formed on the base body (12) on opposite sides of the insertion surface (18), wherein the latching elements extend away from the base body (12).

18. The shaft bearing element (11) according to claim 16, characterized in that Between the two latching elements (14), the connecting web (20) for the locking head (21) is connected to the base body (12).

19. The shaft bearing element (11) according to claim 13 or 14, characterized in that The shaft bearing element (11) is formed from a two-component injection-molded part, wherein the locking head (21) is formed from plastic.

20. The shaft bearing element (11) according to claim 19, characterized in that The locking head (21) is made of a different plastic than the remaining components.

21. The seal (1) according to claim 1, characterized in that The shaft bearing element (11) is formed according to any one of claims 13 to 20.

Citation Information

Patent Citations

  • Self-inking stamp

    AT513900A1

  • SELF-INKING STAMP

    AT515227A1

  • Self-inking hand stamp

    EP1673229B1

  • Self-inking hand stamp

    DE2020162A1

  • Automatic seal

    JP1979094925A