Punching aid

Abstract: A punching aid includes a column (20) disposed above a base (10), a pad (30) adjustably attached onto the column (20), and a flexible device (40) secured between the base (10) and the column (20) by couplers to provide a flexibility to the column (20) relative to the base (10). The base (10) and the column (20) each includes a stud (14, 21) engaged into the couplers (42). The couplers (42) each has a protrusion (45) and a disc (46) engaged into the flexible device (40) for solidly securing the flexible device (40) to the base (10) and the column (20).

Description: The present invention relates to a punching aid. U.S. Patent No. 5,330,403 to Kuo discloses a punching device including a support rod having a lower portion squeezed and engaged into a base support, and a spring engaged on the squeezed portion for forming a flexible punching device. The spring may not be coupled between the support rod and the base without the squeezed portion, and the squeezed portion of the support rod may be easily broken after punching. Document US-A-1995495, as the closest state of the art, describes a pneumatic punching bag having a base, a central anchor post and a reacting element as a coil spring secured to the anchor post and to the pad. The invention is to provide a punching aid including a detachable structure for packaging to a compact configuration according to claim 1. FIG. 1 is an exploded view of a punching aid; FIG. 2 is a perspective view of the punching aid; FIG. 3 is a cross sectional view; FIG. 4 is a plane view of the punching aid; FIG. 5 is an exploded view illustrating the other application of the punching aid; FIG. 6 is a cross sectional view of the punching aid as shown in FIG. 5; and FIG. 7 is a cross sectional view showing the use of the punching aid as shown in FIGS. 5 and 6. Referring to FIGS. 1-3, a punching aid comprises a base 10 including a chamber 11 for receiving fluid or particles, and an upper mouth 12 communicating with the chamber 11 of the base 10 for receiving the fluid or the particles. A cap 13 is detachably secured onto the mouth 12 for confining the fluids within the base 10. The base 10 includes a coupler, such as a stud 14, having one or more grooves 16. The grooves 16 have an open upper end, preferably vertical, and have a lock slot 17 formed in the lower portion. The stud 14 includes an aperture 18 for receiving a fastener or a pin 50. The base 10 may also be made to a solid structure having a suitable stability. A column 20 is to be secured vertically on top of the base 10 and includes a coupler, such as a stud 21 provided on the lower portion. The stud 21 is similar to the stud 14 of the base 10 and includes one or more grooves 22. The grooves 22 have an open lower end, preferably vertical, and have a lock slot 23 formed in the upper portion. The stud 21 includes an aperture 27 for receiving a fastener or a pin 50. The column 20 includes one or more longitudinal channels 24 having one or more lock slots 25. A striking pad 30 includes a bore 31 for receiving the column 20 and one or more projections 32 extended inward of the bore 31 for engaging into the channels 24 and/or the lock slots 25 of the column 20 and for setting the pad 30 to various heights. The pad 30 is preferably made of spongy or rubber materials for striking purposes, and may be formed into various kinds of shapes, such as a human body shape (FIG. 4) or a cylindrical shape (FIGS. 1-3). The pad 30 may include an enclosed (FIGS. 1-3) or open (FIGS. 5-7) upper portion. A barre 1 33 is engaged in the inner portion of the pad 30 (FIGS. 2, 3) for defining the bore 31 of the pad 30 and is made of stronger materials than that for the pad 30, such as plastic materials, and has the projections 32 which are made of stronger materials having a suitable strength for engaging into the channels 24 and the lock slots 25 of the column 20 and for supporting the pad 30 on the column 20 at the required height. A flexible device 40 includes two couplers 42 secured to the ends (upper and lower ends) for securing onto the studs 14, 21 and for providing a flexibility to the column 20 relative to the base 10. The couplers 42 each includes a hole 43 for receiving the stud 14, 21 and each has a projection 44 extended inward of the hole 43 for engaging into the grooves 16, 22 and the lock slots 17, 23 of the studs 14, 21 and for securing the flexible device 40 between the base 10 and the column 20. The pins 50 may be engaged through the couplers 42 and the studs 14, 21 for securing the flexible device 40 between the base 10 and the column 20. The flexible device 40 is preferably made of synthetic or rubber materials and may be made to a size or a diameter no less than that of the column 20. However, if the material is strong enough, the flexible device 40 may be made to a smaller size than that of the column 20. The flexible device 40 may include one or more peripheral or annular grooves 41 for defining one or more peripheral ribs 48 and for increasing the flexibility to the flexible device 40, and may include one or more fins 49 formed in the annular grooves 41 and coupled between the ribs 48 for increasing the strength of the flexible device 40. The couplers 42 each includes a protrusion 45 extended inward of the flexible device 40 and a disc 46 provided on the end portion of the protrusion 45 (FIG. 3). The protrusion 45 and the disc 46 of each coupler 42 may be engaged in the flexible device 40 when molding the flexible device 40 onto the couplers 42 such that the flexible device 40 may be solidly secured to the couplers 42. The discs 46 may each further include one or more openings 47. The material 1 for forming the flexible device 40 may be engaged into the openings 47 of the discs 46 while molding the flexible device 40 onto the couplers 42 such that the flexible device 40 may further be solidly secured to the couplers 42. The most important characteristic is that the flexible device 40 has the upper and the lower portions directly coupled to the column 20 and the base 10 respectively. None of the arts may provide a flexible device 40 directly coupled to the base 10 and the column 20. The flexible device 40 may also be directly coupled to the base and the column with fasteners without the studs and the couplers. The column 20 and the pad 30 and/or the flexible device 40 may be detached from the base 10 for greatly reducing the volume and the size of the packaged punching aid. Referring next to FIGS. 5 and 6, one of the couplers 420 secured to the flexible device 40 may be a stud-shaped coupler 420 (FIG. 5) similar to that (14, 21) lof the base 10 and the column 20. The column 20 or the base 10 may include a socket similar to the couplers 42 (FIGS. 1-3) and having a hole 19 for receiving the stud-shaped coupler 420 which may also be secured to the socket 100 with a projection-lock slot engagement and/or a locking pin. As shown in FIG. 7, the socket or the stud 21 of the column 20 may be directly secured to the stud or the socket 15 of the base 10 without the flexible device 40 for decreasing the height of the punching aid and for allowing the punching aid to be stricken by the children.

Claims: A punching aid comprising a base (10), a column (20) provided above the base (10), a pad (30) attached onto the column (20), a flexible device (40) and means for securing the flexible device (40) between the base (10) and the column (20) comprising two first couplers secured to ends of the flexible device (40) and respective second couplers provided on the base (10) and the column (20), characterized in that one of said second couplers is a first stud (14, 21) comprising one or more grooves (16, 22) and in that a first one (42) of the two first couplers comprises a hole (43) for receiving the first stud and a projection (44) extending inward of the hole (43) for engaging into the one or more grooves (16, 22) of the first stud (14, 21). The punching aid according to claim 1, wherein the other one of said first couplers of the flexible device (40) is a stud-shaped coupler (420), the other one of said second couplers is a socket included in the column (20) or the base (10) having a hole (19) for receiving the stud-shaped coupler (420). The punching aid according to claim 2, wherein the stud-shaped coupler (420) is further secured to the socket with a projection-lock slot engagement and/or a locking pin. The punching aid according to claim 2 or 3, wherein the socket or stud of the column (20) can be directly secured to the base (10). The punching aid according to claim 1, wherein the other one of said second couplers is a second stud (21, 14) comprising one or more grooves (22, 16), and wherein each of the two first couplers (42) includes a hole (43) for receiving the stud (21, 14) and the projection (44) extended inwards of the hole (43) for engaging into the one or more grooves (22, 16) of the studs (21, 14). The punching aid according to claim 5, wherein the second stud (21) provided on the column (20) is similar to the first stud (14) of the base (10). The punching aid according to anyone of the preceding claims, wherein the flexible device (40) is made of synthetic or rubber materials. The punching aid according to anyone of the preceding claims, wherein the flexible device (40) includes one or more peripheral or annular grooves (41) for defining one or more peripheral ribs (48). The punching aid according to claim 8, wherein the flexible device (40) further includes one or more fins (49) formed in the grooves (41). The punching aid according to anyone of the preceding claims, wherein the coupler (42) includes a protrusion (45) and a disc (46) provided on an end portion of the protrusion (45) for engaging in the flexible device (40). The punching aid according to anyone of the preceding claims, wherein the column (20) comprises one or more longitudinal channels (24) having one or more lock slots (25) and the striking pad (30) comprises a bore (31) for receiving the column (20) and one or more projections (32) extended inward of the bore (31) for engaging into the channels (24) and/or the lock slots (25) of the column (20).

Inventors: CHEN SHERRY, CHEN, SHERRY
Applicants: CHEN SHERRY, CHEN, SHERRY
Application year: 1999
Main classification: A63B69
IPC codes: A63B69