EMBOSSING SEAL

Description

1. Field of the Invention

[0001] The present invention relates to an embossing seal, especially to an embossing seal that allows a user to hold and to form embossed patterns.

2. Description of the Prior Art(s)

[0002] A conventional embossing seal comprises a pressing assembly and a die assembly. The pressing assembly includes a base, a shaft, and a pressing handle. The base has a mounting recess formed in a front end of the base. The shaft is mounted in the base and is able to move up and down relative to the base. The shaft has a lower end protruding into the mounting recess. The pressing handle is pivotally coupled to the base and selectively drives the shaft to move. The die assembly is mounted in the mounting recess of the base and includes an upper die. The upper die is abutted by the lower end of the shaft.

[0003] During embossing, a material that is intended to be embossed is mounted in the die assembly and a user holds and turns the pressing handle. Thus, the pressing handle provides a downward pressure to the shaft and the shaft moves downward to push the upper die of the die assembly. Accordingly, the upper die forms embossed patterns on the material.

[0004] However, when the user turns the pressing handle with his wrist and elbow and the pressing handle directly pushes the shaft to move downward, the collision between the pressing handle, the shaft, and the upper die that are all solid causes discomfort to the wrist and the elbow of the user.

[0005] Another conventional Hand-operated Embossing Press, as disclosed in GB Patent No. 437540 A, comprises a base with an overhanging arm and a hand lever. The arm has a box-like free end. A plunger carrying a die is mounted in the box-line free end and through a bottom of the box-like free end and is capable of sliding up and down. Two lateral abutments are mounted on and protrude from the plunger. Two compression springs are disposed in the free end of the arm. A lower end of each compression spring abuts the bottom of the box-like free end while an upper end of each compression spring abuts a corresponding one of the lateral abutmenta. The hand lever is pivoted in the box-like free end of the arm and has a cam abutting against an upper end of the plunger

[0006] When the hand lever is turned, the cam of the hand lever pushes the plunger and the die to move downward. Accordingly, the two lateral abutments compress the two compression springs. Thus, when the hand lever is released, the compression springs push the plunger and the die to move upward. However, since the hand lever also directly drives the plunger to move downward, the user also feels uncomfortable when operating the above-mentioned embossing press.

[0007] The main objective of the present invention is to provide an improved embossing seal that is more comfortable to use. This object is achieved with the embossing seal according to claim 1.

[0008] The embossing seal comprises a base having a front end and a mounting recess formed in the front end of the base, a die assembly mounted in the mounting recess of the base, and a pressing handle pivotally coupled to the base and having a pivot portion pivotally connected to the base and a pushing portion formed adjacent to the pivot portion. The embossing seal further comprises a driven shaft assembly movably mounted in the base and abutting against the die assembly. The driven shaft assembly includes a lower shaft unit mounted in the base, being able to move up and down relative to the base, having a lower end abutting against the die assembly, and including a main shaft being tubular. At least one oil retaining groove is formed in and around an outer surface of the main shaft. A necked portion protrudes from and is formed around an inner surface of the main shaft and has a limit surface facing toward an upper end of the main shaft. A first stop surface faces toward a lower end of the main shaft. An upper shaft unit is coupled to the lower shaft unit being able to move up and down relative to the lower shaft unit, and includes a connecting panel having a through hole formed through the connecting panel. An upper shaft mounted to the connecting panel, mounted through the through hole of the connecting panel, and having a lower end protruding into the main shaft. A lower end surface faces the limit surface. A fastener is mounted through the necked portion, fastened to the upper shaft, and having a second stop surface. The second stop surface selectively abuts against the first stop surface. A cushion member is mounted to the upper shaft unit and has two ends respectively abutting against the lower shaft unit and the upper shaft unit. A restoring member is mounted in the base and has two ends respectively abutting against the base. The upper shaft unit and the pressing handle abuts against the upper shaft unit.

[0009] During a first embossing step, with the upper shaft unit drives the lower shaft unit via the cushion member, discomfort of wrist and elbow of a user can be reduced. Accordingly, the user can operate the embossing seal in a comfortable and labor saving manner.

IN THE DRAWINGS:

[0010] 

Fig. 1 is a perspective view of an embossing seal in accordance with the present invention;

Fig. 2 is an exploded perspective view of the embossing seal in Fig. 1;

Fig. 3 is a cross-sectional side view of the embossing seal in Fig. 1;

Fig. 4 is a cross-sectional side view of the embossing seal in Fig. 1, showing a die mounted therein;

Fig. 5 is an operational cross-sectional side view of the embossing seal in Fig. 1; and

Fig. 6 is another operational cross-sectional side view of the embossing seal in Fig. 1

[0011] With reference to Figs. 1 to 3, an embossing seal in accordance with the present invention comprises a base 10, a die assembly 20, a driven shaft assembly 30, a restoring member 40, and a pressing handle 50.

[0012] The base 10 has a front end, a mounting recess 11, at least one positioning protrusion 12, a first coupling hole 13, and a second coupling hole 14. The mounting recess 11 is formed in the front end of the base 10. The at least one positioning protrusion 12 protrudes into the mounting recess 11. The first coupling hole 13 is formed in the base 10 and communicates with the mounting recess 11. The second coupling hole 14 is formed in the base 10 and does not communicate with the mounting recess 11.

[0013] The die assembly 20 is mounted in the mounting recess 11 of the base 10 and includes a lower die 21 and an upper die 22. The lower die 21 has at least one positioning hole 23. The at least one positioning hole 23 engages with the at least one positioning protrusion 12 of the base 10. The upper die 22 is disposed above the lower die 21 and corresponds in position to the first coupling hole 13.

[0014] The driven shaft assembly 30 is movably mounted in the first coupling hole 13 of the base 10 and abuts against the die assembly 20. The driven shaft assembly 30 includes a lower shaft unit 31, an upper shaft unit 32, and a cushion member 33. The lower shaft unit 31 is mounted in the first coupling hole 13 of the base 10, is able to move up and down relative to the base 10, and has an upper end and a lower end. The lower end of the lower shaft unit 31 abuts against the upper die 22 of the die assembly 20. The upper shaft unit 32 is coupled to the lower shaft unit 31 and is able to move up and down relative to the lower shaft unit 31. The cushion member 33 is mounted to the upper shaft unit 32 and has two ends. The two ends of the cushion member 33 respectively abut against the upper end of the lower shaft unit 31 and the upper shaft unit 32. Specifically, the cushion member 33 is a power spring.

[0015] The restoring member 40 is mounted in the second coupling hole 14 of the base 10 and has two ends. The two ends of the restoring member 40 respectively abut against the base 10 and the upper shaft unit 32.

[0016] The pressing handle 50 is pivotally coupled to the base 10 and has a pivot portion and a pushing portion 51. The pivot portion is pivotally connected to the base 10. The pushing portion 51 is formed adjacent to the pivot portion and abuts against the upper shaft unit 32.

[0017] With reference to Figs. 2 and 3, in the preferred embodiment, the lower shaft unit 31 includes a main shaft 311, at least one oil retaining groove 312, an oil containing groove 316, and a necked portion 313. The main shaft 311 is tubular, is movably mounted in the first coupling hole 13, and has an outer surface and an inner surface. The outer surface of the main shaft 311 contacts the base 10. The at least one oil retaining groove 312 is formed in and around the outer surface of the main shaft 311. Each of the at least one oil retaining groove 312 is filled with lubricating oil and encircles an imaginary plane. The imaginary plane may be perpendicular to a central axis of the main shaft 311 or may be inclined relative to the central axis of the main shaft 311. The oil containing groove 316 is formed in and around the outer surface of the main shaft 311 and is disposed below the at least one oil retaining groove 312. The necked portion 313 protrudes from and is formed around the inner surface of the main shaft 311 and has a limit surface 314 and a first stop surface 315. The limit surface 314 faces toward an upper end of the main shaft 311. The first stop surface 315 faces toward a lower end of the main shaft 311.

[0018] The upper shaft unit 32 includes a connecting panel 321, an upper shaft 322, and a fastener 323. The connecting panel 321 has a through hole 324 formed through the connecting panel 321. The upper shaft 322 is mounted to the connecting panel 321 and is mounted through the through hole 324 of the connecting panel 321. The upper shaft 322 has a lower end and a lower end surface. The lower end of the upper shaft 322 protrudes into the main shaft 311. The lower end surface of the upper shaft 322 faces the limit surface 314. The fastener 323 is mounted through the necked portion 313, is fastened to the upper shaft 322, and has a second stop surface 325. The second stop surface 325 selectively abuts against the first stop surface 315.

[0019] As shown in Figs. 2 and 3, specifically, the upper shaft 322 has an inner thread 326 formed in the upper shaft 322. The fastener 323 has an outer thread 327. The outer thread 327 passes through the necked portion 313 and engages with the inner thread 326.

[0020] With reference to Fig. 4, before embossing, a material 60 that is intended to be embossed is inserted between the upper die 22 and the lower die 21 of the die assembly 20 and is mounted on the upper die 22.

[0021] With further reference to Fig. 5, a user turns the pressing handle 50 to allow the pushing portion 51 of the pressing handle 50 to depress the upper shaft 322 as well as the connecting panel 321 of the upper shaft unit 32 to move downward. Accordingly, the cushion member 33 and the restoring member 40 are compressed and the cushion member 33 pushes the lower shaft unit 31 to move downward. The lower shaft unit 31 that moves downward presses upon the upper die 22, so as to emboss patterns on the material 60. As the lower end of the upper shaft 322 abuts the limit surface 314 of the lower shaft unit 31, a first embossing step of the driven shaft assembly 30 is completed.

[0022] With reference to Fig. 6, when the user applies more downward force to depress the pressing handle 50 to perform a second embossing step, the pushing portion 51 of the pressing handle 50 and the upper shaft 322 directly push the main shaft 311 to move downward to press upon the upper die 22.

[0023] Afterwards, as the pressing handle 50 is turned to allow the pushing portion 51 to leave the upper shaft unit 32, the restoring member 40 and the cushion member 33 push the upper shaft unit 32 and the lower shaft unit 31 to move upward.

[0024] As shown in Figs. 3 and 4, when the main shaft 311 moves in the first coupling hole 13 of the base 10, the lubricating oil in the at least one oil retaining groove 312 allows the main shaft 311 to move smoothly. Furthermore, the oil containing groove 316 can receive the lubricating oil that flows out from the at least one oil retaining groove 312.

[0025] The embossing seal as described has the following advantages. The driven shaft assembly 30 that includes the upper shaft unit 32 and the lower shaft unit 31 allows the user to perform the first and second embossing steps. During the first embossing step, with the upper shaft unit 32 driving the lower shaft unit 31 via the cushion member 33, discomfort to the wrist and elbow of the user can be reduced. Accordingly, the user can operate the embossing seal in a comfortable and labor saving manner.

Claims

1. An embossing seal comprising a base (10) having a front end and a mounting recess (11) formed in the front end of the base (10), a die assembly (20) mounted in the mounting recess (11) of the base (10), and a pressing handle (50) pivotally coupled to the base (10) and having a pivot portion pivotally connected to the base (10) and a pushing portion (51) formed adjacent to the pivot portion, and the embossing seal further comprising:

a driven shaft assembly (30) movably mounted in the base (10) and abutting against the die assembly (20), and the driven shaft assembly (30) including
a lower shaft unit (31) mounted in the base (10), being able to move up and down relative to the base (10), having a lower end abutting against the die assembly (20), and including a main shaft (311) being tubular;

at least one oil retaining groove (312) formed in and around an outer surface of the main shaft (311); and

a necked portion (313) protruding from and formed around an inner surface of the main shaft (311) and having
a limit surface (314) facing toward an upper end of the main shaft (311); and

a first stop surface (315) facing toward a lower end of the main shaft (311);an upper shaft unit (32) coupled to the lower shaft unit (31) being able to move up and down relative to the lower shaft unit (31), and including
a connecting panel (321) having a through hole (324) formed through the connecting panel (321);

an upper shaft (322) mounted to the connecting panel (321), mounted through the through hole (324) of the connecting panel (321), and having;

a lower end protruding into the main shaft (311); and

a lower end surface facing the limit surface (314); and

a fastener (323) mounted through the necked portion (313), fastened to the upper shaft (322), and having a second stop surface (325), and the second stop surface (325) selectively abutting against the first stop surface (315); and

a cushion member (33) mounted to the upper shaft unit (32) and having two ends respectively abutting against the lower shaft unit (31) and the upper shaft unit (32);

a restoring member (40) mounted in the base (10) and having two ends respectively abutting against the base (10) and the upper shaft unit (32); and

the pressing handle (50) abuts against the upper shaft unit (32).

2. The embossing seal as claimed in claim 1, wherein each of the at least one oil retaining groove (312) encircles an imaginary plane being perpendicular to a central axis of the main shaft (311).

3. The embossing seal as claimed in claim 1, wherein each of the at least one oil retaining groove (312) encircles an imaginary plane inclined relative to the central axis of the main shaft (311).

4. The embossing seal as claimed in claim 1, 2, or 3, wherein the lower shaft unit (31) further includes an oil containing groove (316), and the oil containing groove (316) is formed in and around the outer surface of the main shaft (311) and is disposed below the at least one oil retaining groove (312).

5. The embossing seal as claimed in claim 1, 2, 3, or 4, wherein
the upper shaft (322) has an inner thread (326) formed in the upper shaft (322); and
the fastener (323) has an outer thread (327), and the outer thread (327) passes through the necked portion (313) and engages with the inner thread (326).

Ansprüche

1. Ein Prägestempel, umfassend eine Basis (10) mit einem vorderen Ende und einer Montageaussparung (11), die in dem vorderen Ende der Basis (10) ausgebildet ist, eine Matrizenbaugruppe (20), die in der Montageaussparung (11) der Basis (10) montiert ist, und einen Drückgriff (50), der schwenkbar mit der Basis (10) verbunden ist und einen Schwenkabschnitt, der schwenkbar mit der Basis (10) verbunden ist, und einen Schiebe-Abschnitt (51) hat, der benachbart zu dem Schwenkarmschnitt ausgebildet ist, und wobei der Prägestempel ferner umfasst:
eine angetriebener-Schaft-Baugruppe (30), die bewegbar in der Basis (10) montiert ist und an die Matrizenbaugruppe (20) anstößt, und wobei die angetriebener-Schaft-Baugruppe (30) umfasst:

eine untere Schafteinheit (31), die in der Basis (10) montiert ist, die in der Lage ist, sich relativ zu der Basis (10) nach oben und nach unten zu bewegen, die ein unteres Ende hat, das an die Matrizenbaugruppe (20) anstößt, und die einen rohrförmigen Hauptschaft (311) umfasst,

mindestens eine Ölhaltenut (312), die in und um eine Außenfläche des Hauptschaftes (311) ausgebildet ist, und

einen Halsabschnitt (313), der von einer Innenfläche des Hauptschaftes (311) hervorsteht und um diese herum ausgebildet ist und aufweist

eine Grenzfläche (314), die einem oberen Ende des Hauptschaftes (311) zugewandt ist, und

eine erste Anschlagfläche (315), die einem unteren Ende des Hauptschaftes (311) zugewandt ist; eine mit der unteren Schafteinheit (31) verbundene obere Schafteinheit (32), die in der Lage ist, sich relativ zu der unteren Schafteinheit (31) nach oben und nach unten zu bewegen, und die umfasst:

eine Verbindungsplatte (321) mit einem Durchgangsloch (324), das durch die Verbindungsplatte (321) hindurch ausgebildet ist,

einen an der Verbindungsplatte (321) montierten oberen Schaft (322), der durch das Durchgangsloch (324) der Verbindungsplatte (321) hindurch montiert ist und umfasst:

ein unteres Ende, das in den Hauptschaft (311) hinein hervorsteht, und

eine untere Endfläche, die der Anschlagfläche (314) zugewandt ist, und

eine Befestigungsvorrichtung (323), die durch den Halsabschnitt (313) hindurch montiert ist, an dem oberen Schaft (322) befestigt ist und eine zweite Anschlagfläche (325) umfasst, wobei die zweite Anschlagfläche (325) wahlweise an die erste Anschlagfläche (315) anstößt, und

ein Polsterelement (33), das an der oberen Schafteinheit (32) montiert ist und zwei Enden hat, die jeweils an die untere Schafteinheit (31) und die obere Schafteinheit (32) anstoßen,

ein Wiederherstellungselement (40), das in der Basis (10) montiert ist und zwei Enden hat, die jeweils an die Basis (10) und die obere Schafteinheit (32) anstoßen, und

wobei der Drückgriff (50) an die obere Schafteinheit (32) anstößt.

2. Der Prägestempel nach Anspruch 1, wobei jede von der mindestens einen Ölhaltenut (312) eine imaginäre Ebene umgibt, die senkrecht zu einer zentralen Achse des Hauptschaftes (311) ist.

3. Der Prägestempel nach Anspruch 1, wobei jede von der mindestens einen Ölhaltenut (312) eine imaginäre Ebene umgibt, die relativ zu der zentralen Achse des Hauptschaftes (311) geneigt ist.

4. Der Prägestempel nach Anspruch 1, 2 oder 3, wobei die untere Schafteinheit (31) ferner eine Ölaufnahmenut (316) umfasst und die Ölaufnahmenut (316) in und um die Außenfläche des Hauptschaftes (311) ausgebildet ist und unter der mindestens einen Ölhaltenut (312) angeordnet ist.

5. Der Prägestempel nach Anspruch 1, 2, 3 oder 4, wobei
der obere Schaft (322) ein Innengewinde (326) hat, das im oberen Schaft (322) ausgebildet ist, und
die Befestigungsvorrichtung (323) ein Außengewinde (327) hat und das Außengewinde (327) durch den Halsabschnitt (313) hindurchverläuft und mit dem Innengewinde (326) ineinandergreift.

Revendications

1. Dispositif de scellement par embossage comprenant une base (10) comprenant une extrémité frontale et une cavité de montage (11) formée dans l'extrémité frontale de la base (10), un ensemble de matrice (20) monté dans la cavité de montage (11) de la base (10) et un levier de pressage (50) couplé de manière pivotante à la base (10) et comprenant une portion de pivot connecté de manière pivotante à la base (10) et une portion de poussée (51) formée de manière adjacente à la portion de pivot, et le dispositif scellement par embossage comprenant en outre :

un ensemble à arbre entraîné (30) monté de manière mobile dans la base (10) et en butée contre l'ensemble de matrice (20) et l'ensemble à arbre entraîné (30) comprenant

une unité d'arbre inférieure (31) montée dans la base (10), capable de se déplacer vers le haut et vers le bas par rapport à la base (10), comprenant une extrémité inférieure en butée contre l'ensemble de matrice (20) et comprenant un arbre principal (311) tubulaire ;

au moins une rainure de retenue d'huile (312) formée dans et autour d'une surface externe de l'arbre principal (311) ; et

une portion à col (313) dépassant et formée autour d'une surface interne de l'arbre principal (311) et comprenant

une surface limite (314) orientée en direction d'une extrémité supérieure de l'arbre principal (311) ; et

une première surface d'arrêt (315) orientée en direction d'une extrémité inférieure de l'arbre principal (311) ;

une unité d'arbre supérieure (32) couplée à l'unité d'arbre inférieure (31), capable de se déplacer vers le haut et vers le bas par rapport à l'unité d'arbre inférieure (31) et comprenant

un panneau de connexion (321) comprenant un trou traversant (324) formée à travers le panneau de connexion (321) ;

un arbre supérieur (322) monté sur le panneau de connexion (321), monté à travers le trou traversant (324) du panneau de connexion (321) et comprenant :

une extrémité inférieure dépassant dans l'arbre principal (311) ; et

une surface d'extrémité inférieure face à la surface limite (314) ; et

un dispositif de fixation (323) monté à travers la portion à col (313), fixé à l'arbre supérieur (322),

et comprenant une deuxième surface d'arrêt (325) et la deuxième surface d'arrêt (325) étant en butée de manière sélective contre la première surface d'arrêt (315) ; et

un élément de coussinet (33) monté sur l'unité d'arbre supérieure (32) et comprenant deux extrémités respectivement en butée contre l'unité d'arbre inférieure (31) et l'unité d'arbre supérieure (32) ;

un élément de restauration (40) monté dans la base (10) et comprenant deux extrémités respectivement en butée contre la base (10) et l'unité d'arbre supérieure (32) ; et

le levier de pressage (50) étant en butée contre l'unité d'arbre supérieure (32).

2. Dispositif de scellement par embossage selon la revendication 1, dans lequel chacun des au moins une rainure de retenue d'huile (312) entoure un plan imaginaire perpendiculaire à un axe central de l'arbre principal (311).

3. Dispositif de scellement par embossage selon la revendication 1, dans lequel chacun des au moins une rainure de retenue d'huile (312) entoure un plan imaginaire incliné par rapport à l'axe central de l'arbre principal (311).

4. Dispositif de scellement par embossage selon la revendication 1, 2 ou 3, dans lequel l'unité d'arbre inférieure (31) comprend en outre une rainure contenant de l'huile (316) et la rainure contenant de l'huile (316) est formée dans et autour de la surface externe de l'arbre principal (311) et est disposée en dessous de l'au moins une rainure de retenue d'huile (312).

5. Dispositif de scellement par embossage selon la revendication 1, 2, 3 ou 4, dans lequel
l'arbre supérieur (322) comprend un filetage interne (326) formé dans l'arbre supérieur (322) ; et
le dispositif de fixation (323) comprend un filetage externe (327) et le filetage externe (327) traverse la portion à col (313) et s'emboîte avec le filetage interne (326).

Drawing