Two-color overprinted stamp
Patent Information
- Application Number
- JP2025077166
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-31
- Filing Date
- 2025-05-07
- Publication Date
- 2026-10-14
AI Technical Summary
【0016】 本発明によれば、二色重ね刷りができるスタンプを提供することができる。
Smart Images

Figure 2026167349000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a stamp, and particularly relates to a stamp capable of two-color overprinting.
Background Art
[0002] Stamps have always played an important role as tools combining functionality and entertainment in various fields such as stationery, cultural creativity (creating new culture by leveraging excellent things passed down since ancient times), cultural tourism, offices, logistics and transportation, and toys. For this reason, with the development of technology, various forms of stamps have been developed and sold according to their functions at present. In the field of cultural and creative industries, it is common practice to produce cultural and creative related patterns as stamp contents and sell corresponding stamps to tourists. As a conventional stamp, the one disclosed in Patent Document 1 is known.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] However, the conventional stamp has one stamping face per stamp, that is, only one pattern can be printed with one stamp. The reason is that replacing the stamping face is troublesome, and even if the stamping face is replaced to print a plurality of patterns, the stamping face is easily damaged, and the printing may become unclear.
[0005] The problem to be solved by the present invention is to provide a stamp capable of two-color overprinting.
Means for Solving the Problems
[0006] The present invention comprises a stamp housing (1) and a plurality of stamp members (2) slidably provided within the stamp housing (1). The stamp housing (1) includes a lower frame (11) and an upper cover (12) that is detachably attached to the upper part of the lower frame (11). The stamp member (2) includes an outer frame (21) and a stamp surface (22) provided at the bottom of the outer frame (21) so as to be movable along the stamping direction. The lower frame (11) includes an opening (13) formed in the central portion, and stoppers (14) formed on the inner walls on both sides of the opening (13) to support the stamp member (2) and limit the stamp surface (22) from contacting the lower frame. The above problem is solved by a two-color overprint stamp that includes a position-limiting projection (17) formed on its inner wall, which restricts the outer frame (21) from sliding toward the opening (13).
[0007] In the above invention, it is more preferable that fixing protrusions (15) are provided on the outer walls of both ends of the lower frame (11), and fixing grooves (16) that engage with the fixing protrusions are provided on the inner walls of both ends of the upper cover (12), so that the upper cover (12) is fixed to the lower frame (11) by the engagement of the fixing protrusions (15) and the fixing grooves (16).
[0008] In the above invention, it is more preferable that protruding portions (210) are formed on both sides of the outer frame (21), the outer frame (21) is slidably supported with respect to the lower frame (11) via the protruding portions (210), and the lower end of the outer frame (21) contacts the upper surface of the stopper (14).
[0009] In the above invention, it is more preferable that the stamp base (23), to which the stamp surface (22) is fixed at the bottom, is provided inside the outer frame (21) so as to be movable along the stamping direction.
[0010] In the above invention, it is more preferable that a storage chamber (29) is provided at the bottom of the outer frame (21), the stamp stand (23) is stored in the storage chamber (29), a movable connecting portion (24) is formed on the upper part of the stamp stand (23), and the movable connecting portion (24) is provided so as to penetrate the storage chamber (29) so as to be movable in the stamping direction.
[0011] In the above invention, it is more preferable that a stamping button (26) is provided on the upper part of the outer frame (21), an assembly part (28) is formed on the lower part of the stamping button (26), and the assembly part (28) is fixed to the movable connecting part (24).
[0012] In the above invention, it is more preferable that a coil spring (25) is provided on the outer surface of the assembly part (28) so as to be expandable and contractible in the stamping direction, the lower end of the coil spring (25) abuts against the upper part of the storage chamber (29), and the upper end of the coil spring (25) abuts against the stamping button (26).
[0013] In the above invention, it is more preferable that a logo pattern (27) identical to the pattern of the stamp surface (22) is provided on the upper part of the stamping button (26).
[0014] In the above invention, it is more preferable that the anti-slip piece (3) is fixed to the bottom of the lower frame (11).
[0015] In the above invention, it is more preferable that the anti-slip piece (3) is made of an elastic material. [Effects of the Invention]
[0016] According to the present invention, it is possible to provide a stamp that can perform two-color overlay printing. [Brief explanation of the drawing]
[0017] [Figure 1] This is a perspective view showing the entire stamp according to one embodiment of the present invention. [Figure 2] Figure 1 is a perspective view showing the lower frame and stamp component of the stamp. [Figure 3] FIG. 2 is an exploded perspective view of the stamp in FIG. 1 as seen from above. [Figure 4] FIG. 3 is an exploded perspective view of the stamp in FIG. 1 as seen from below. [Figure 5] FIG. 4 is an exploded perspective view of the stamp member in FIG. 2 as seen from above. [Figure 6] FIG. 5 is an exploded perspective view of the stamp member in FIG. 2 as seen from below. [Figure 7] FIG. 6 is a cross-sectional view taken along line VII-VII in FIG. 3. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7. [Mode for Carrying Out the Invention]
[0018] FIG. 1 is a perspective view showing the overall state of a stamp according to an embodiment of the present invention, viewed from below; FIG. 2 shows a state where the upper cover 12 of the stamp in FIG. 1 is removed, and is a perspective view showing the lower frame 11 and the stamp member 2. Further, FIG. 3 is an exploded perspective view of the stamp in FIG. 1 as seen from above, and FIG. 4 is likewise an exploded perspective view of the stamp in FIG. 1 as seen from below. Further, FIG. 5 is an exploded perspective view of the stamp member 2 in FIG. 2 as seen from above, and FIG. 6 is likewise an exploded perspective view of the stamp member 2 as seen from below. Further, FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 3, and FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7.
[0019] As shown in FIGS. 1 and 2, the stamp of the present embodiment includes a stamp housing 1, and a plurality of stamp members 2 arranged inside the stamp housing 1. The illustrated embodiment includes two stamp members 2, 2. Further, the stamp housing 1 includes a lower frame 11 and an upper cover 12 detachably attached to the upper portion of the lower frame 11. Further, the stamp member 2 includes an outer frame 21, and a stamping face 22 provided on the bottom side of the outer frame 21 so as to be movable along the stamping direction X.
[0020] An opening 13 is provided in the center of the lower frame 11, and four stoppers 14 are integrally formed on each side of the upper surface (inside the stamp housing) of the opening 13. The stoppers 14 contact a single stamp base 23, described later, at four points to prevent the stamp surface 22 from being pushed down in the stamping direction X and soiling the bottom surface of the lower frame 11 when the stamp member 2 is sliding to the positions on either side of the opening 13. Note that when the stamp member 2 is sliding to the position of the opening 13, the stamp base 23 and the stoppers 14 do not come into contact, so the stamp surface 22 can be pushed down in the stamping direction X through the opening 13.
[0021] The anti-slip pieces 3 are fixed to two locations on both ends of the bottom surface of the lower frame 11, as shown in Figure 1. The anti-slip pieces 3 can be made of an elastic material such as rubber, silicone, or thermoplastic polyurethane (TPU). The anti-slip pieces 3 increase the frictional force with the paper to be stamped, preventing the stamp from slipping during stamping. At the same time, the elastic material provides a cushioning effect, mitigating the impact between the stamp housing 1 and the stamped paper when the stamp is pressed hard.
[0022] As shown in Figure 4, position-restricting protrusions 17 are integrally formed on the inner wall of the upper cover 12. The position-restricting protrusions 17 contact the outer frame 21 of the stamp member 2 at two points to restrict the stamp member 2 from sliding toward the opening 13 when the stamp member 2 slides toward the opening 13 and is covered by the upper cover 12, i.e., when the stamp is not in use. When using the stamp, the upper cover 12 is removed, so the outer frame 21 does not contact the position-restricting protrusions 17, and the stamp member 2 can slide toward the opening 13.
[0023] As shown in Figure 3, fixing protrusions 15 are integrally formed on the outer walls of both ends of the lower frame 11, and as shown in Figure 4, fixing grooves 16 are provided on the inner walls of both ends of the upper cover 12. The fixing protrusions 15 of the lower frame 11 are detachably engaged with the fixing grooves 16 of the upper cover 12, thereby detachably fixing the upper cover 12 to the upper outer wall of the lower frame 11.
[0024] As shown in Figures 6 and 8, protruding portions 210 are integrally formed on both sides of the outer frame 21 of the stamp member 2. As shown in Figure 8, the outer frame 21 is supported by the opening frame of the lower frame 11 via the protruding portions 210, and the lower end of the outer frame 21 contacts the upper surface of the stopper 14. This allows the outer frame 21 to slide while being supported by the lower frame 11.
[0025] As shown in Figures 5 and 6, the stamp member 2 of this embodiment has a stamp base 23 that is movable along the stamping direction X inside the outer frame 21, and a stamp surface 22 is mounted on the bottom of the stamp base 23.
[0026] A storage chamber 29 is provided at the bottom of the outer frame 21, and an ink pad 23 is placed in the storage chamber 29. A movable connecting part 24 is integrally formed on the upper part of the ink pad 23, and the movable connecting part 24 is positioned to penetrate the upper surface of the storage chamber 29. An ink stamping button 26 is placed on the upper part of the outer frame 21, and an assembly part 28 is integrally formed on the lower part of the ink stamping button 26. A coil spring 25 is inserted into the outside of the assembly part 28 so as to be expandable and contractible, with the lower end of the coil spring 25 in contact with the upper part of the storage chamber 29 and the upper end of the coil spring 25 in contact with the ink stamping button 26. The upper surface of the ink stamping button 26 is provided with a logo pattern 27, which is the same as the pattern on the ink stamp surface 22.
[0027] Then, the movable connecting part 24 is inserted through and fixed into the assembly part 28, so that the stamp base 23 and the stamping button 26 are supported by the outer frame 21 with the outer frame 21 in between. When the stamping button 26 is pressed down, the stamping button 26 and the stamp base 23 are pushed down relative to the outer frame 21 along the stamping direction X, and when the pressing force of the stamping button 26 is released, the restoring force of the coil spring 25 returns the stamping button 26 and the stamp base 23 to their original positions.
[0028] Next, let's explain how it works. When carrying the stamp, the two stamp members 2,2 slide to either side of the opening 13, respectively, and the upper cover 12 is secured to the top of the lower frame 11. As a result, the sliding movement of the two stamp members 2,2 is restricted by the position-restricting projections 17 formed on the inner wall of the upper cover 12. Consequently, when carrying the stamp in use, it is not only convenient to carry, but it also prevents it from sliding out of the lower frame 11, thus preventing damage to the stamp surface 22 or soiling caused by it sliding out during carrying.
[0029] On the other hand, when using a stamp, the upper cover 12 is removed, the stamp member 2 to be stamped is selected, and it is slid horizontally along the top of the lower frame 11 to the opening 13. At this time, the outer frame 21 slides while being supported by the stopper 14 and is positioned horizontally by coming into contact with the other stamp member 2. This ensures that the position of the stamp surface 22 precisely aligns with the position of the opening 13. When selecting the stamp member to be stamped, the desired stamp member 2 can be quickly found by looking at the logo pattern 27.
[0030] To stamp, the stamping button 26 is pressed along the downward stamping direction X. This causes the movable connecting part 24 to move downward via the assembly part 28. At this time, the coil spring 25 is compressed, and simultaneously, the stamp base 23 and stamp surface 22 are pushed downward towards the stamping paper below through the opening 13. Since the stamping operation is performed in the downward stamping direction X, damage to the stamp surface 22 can be effectively avoided while ensuring the clarity of the stamping. Simultaneously, a two-color overprinting effect can be obtained by stamping the two stamp members 2 in sequence. [Explanation of Symbols]
[0031] 1… Stamp Housing 11...Bottom frame 12…Top cover 13…Opening 14... Stopper 15…Fixing protrusion 16… Fixing groove 17…Protrusions for position restriction 2…Stamp components 21…Outer frame 210...Protrusion section 22...Seal face 23... Stamp stand 24…Movable connection part 25... Coil spring 26... Stamp button 27…Logo pattern 28…Assembly department 29...Storage room 3…Anti-slip piece X... Stamping direction
Claims
1. The device comprises a stamp housing (1) and a plurality of stamp members (2) slidably provided within the stamp housing (1), The stamp housing (1) includes a lower frame (11) and an upper cover (12) that is detachably attached to the upper part of the lower frame (11). The stamp member (2) includes an outer frame (21) and a stamp surface (22) provided at the bottom of the outer frame (21) so as to be movable along the stamping direction. The lower frame (11) includes an opening (13) formed in the central portion, and stoppers (14) formed on the inner walls on both sides of the opening (13) to support the stamp member (2) and restrict the stamp surface (22) from contacting the lower frame. The upper cover (12) is a two-color overprinting stamp that includes a position-limiting projection (17) formed on its inner wall, which restricts the outer frame (21) from sliding toward the opening (13).
2. The two-color overprinting stamp according to claim 1, wherein fixing protrusions (15) are provided on the outer walls of both ends of the lower frame (11), and fixing grooves (16) that engage with the fixing protrusions are provided on the inner walls of both ends of the upper cover (12), and the upper cover (12) is fixed to the lower frame (11) by the engagement of the fixing protrusions (15) and the fixing grooves (16).
3. A two-color overprinting stamp according to claim 1 or 2, wherein protruding portions (210) are formed on both sides of the outer frame (21), the outer frame (21) is slidably supported with respect to the lower frame (11) via the protruding portions (210), and the lower end of the outer frame (21) contacts the upper surface of the stopper (14).
4. The two-color overprinting stamp according to claim 1, wherein a stamp base (23) to which the stamp surface (22) is fixed at the bottom is provided inside the outer frame (21) so as to be movable along the stamping direction.
5. A two-color overprinting stamp according to claim 4, wherein a storage chamber (29) is provided at the bottom of the outer frame (21), the stamp base (23) is stored in the storage chamber (29), a movable connecting part (24) is formed on the upper part of the stamp base (23), and the movable connecting part (24) is provided so as to penetrate the storage chamber (29) so as to be movable in the stamping direction.
6. A two-color overprinting stamp according to claim 5, wherein a stamping button (26) is provided on the upper part of the outer frame (21), an assembly part (28) is formed on the lower part of the stamping button (26), and the assembly part (28) is fixed to the movable connecting part (24).
7. A two-color overprinting stamp according to claim 6, wherein a coil spring (25) is provided on the outer surface of the assembly part (28) so as to be expandable and contractible in the stamping direction, the lower end of the coil spring (25) abuts against the upper part of the storage chamber (29), and the upper end of the coil spring (25) abuts against the stamping button (26).
8. The two-color overprint stamp according to claim 6, wherein a logo pattern (27) identical to the pattern of the stamp surface (22) is provided on the upper part of the stamping button (26).
9. The two-color overprinting stamp according to claim 1, wherein a non-slip piece (3) is fixed to the bottom of the lower frame (11).
10. The two-color overprinting stamp according to claim 9, wherein the anti-slip piece (3) is made of an elastic material.
Citation Information
Patent Citations
Stamp
JP2007152748A