FR3022149A1 - ADJUSTABLE HALTER SYSTEM - Google Patents

Abstract

This adjustable dumbbell system comprises: - a handle (10) comprising a gripping portion, two hooking rods (12) on two ends of the handle (10) and a plurality of through holes at each shackle rod; A plurality of weights (20), each defining an elongate upper slot (21) and a lower opening (22) and having a chisel hook (30) mounted thereon, the chisel hook (30) including a hook unit (31), an actuating unit adapted to be driven by an external force to open or close the hook unit (31), and elastic members (35) adapted to hold the hook unit (31). ) in a closed position, - a support base (40) for receiving the weights (20), and - a selector (50) comprising a plurality of control units (52) which are attached to lower openings of the weights (20). when these weights are housed in the support base (40), a rotation of the selector (50) for causing the control units (52) to control the scissors hook actuating units (30) of the weights (20) to open or close the hook units (31) of the hooks scissors (30) respectively.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a training apparatus and, more particularly, to an adjustable dumbbell system. 2. Description of the Related Prior Art Adjustable dumbbells allowing adjustment of the total weight are commercially available. A copy is described in US Pat. No. 7,261,678 B2. However, these classic mainstream designs have the weight selector mounted in the dumbbell handle. However, if the dumbbell is hit by an outdoor object or falls to the floor accidentally during exercise or transportation, the weight selector may be damaged. SUMMARY OF THE INVENTION The present invention has been designed with these circumstances in mind. The main object of the present invention is to provide an adjustable dumbbell system, which includes the weight selector mounted in the support base, avoiding damaging the dumbbell during operation or transportation. To achieve this and other objects of the present invention, an adjustable dumbbell system according to the present invention comprises a handle, several weights, a support base, and a selector. The handle comprises a gripping portion and two gripping rods each extending axially from two opposite ends of said gripping portion in opposite directions. Each attachment rod comprises a plurality of through holes. The weights are elements in the form of flat plates adapted to be mounted on the attachment rods that includes the handle. Each weight includes an opposing upper and lower side, and an opposing left and right side, an elongate upper slot extending vertically downwardly from said upper side for receiving one of said attachment shafts which includes the handle, a lower opening located at said lower side, and a scissors hook mounted therein. The chisel hook comprises a hook unit disposed on a lower side in the elongate upper slot, an operating unit disposed in the lower opening and adapted to be driven by an external force to move said hook unit between a position of closure in which the hook unit is engaged in one of said through holes of one of said hooking rods which comprises the handle to fix the weight corresponding to said handle, and an open position in which the the hook unit is disengaged from the corresponding through hole of the corresponding hooking rod of the handle, and at least one resilient member adapted to maintain said hook unit in the closed position. The support base includes a plurality of locating grooves located on an upper side thereof for receiving the weights. The selector is mounted in the support base; it comprises a selection button placed outside the support base and a plurality of control units arranged in the positioning grooves. The control units are each fixed to the lower openings of said weights when these weights are placed in the locating grooves that includes the support base. The control units are operable by means of said select button to drive the chisel hook actuation units of the respective weights to open / close the respective hook units. In the design of the aforementioned structure, the selector according to the invention is mounted in the support base, which is normally held stationary in a particular place and is adapted to accommodate the weights when the dumbbell is not in progress. 'use. Thus, the selector will not be accidentally damaged when the user uses the dumbbell to perform gymnastic exercises. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an elevational view of an adjustable dumbbell system according to the present invention.

Figure 2 is a view of the system according to the present invention, illustrating the dumbbell raised and two weights left in the support base, the weight in the foreground being illustrated in elevation and in section. Figure 3 is a front and sectional view taken along the line 3-3 of Figure 2, illustrating the configuration of the handle. Figure 4 is a front view according to Figure 3. Figure 5 is a front view and in section along the line 5-5 of Figure 4, illustrating the internal structure of the first weight. Figure 6 is a front view and in section along the line 6-6 of Figure 5, illustrating the external structure of the fourth weight. Figure 7 is a front view and in section along the line 7-7 of Figure 4, illustrating the external structure of the third weight. Figure 8 is a front view and in section along the line 8-8 of Figure 4, illustrating the internal structure of the fourth weight.

FIG. 9 is a view similar to FIG. 8, illustrating the attachment rod received in the elongated upper slot of the fourth weight, the control unit being disengaged from the actuating unit of the chisel hook, and hook forming unit of the chisel hook being hooked to the shackle. DETAILED DESCRIPTION OF THE INVENTION As illustrated in the accompanying drawings, an adjustable dumbbell system according to the present invention comprises a handle 10, an equal predetermined number, of weight 20, a support base 40, and a selector 50. handle 10, as shown in FIG. 3, comprises a gripping portion 11, two gripping rods 12, each extending axially from two opposite ends of the gripping portion 11 in opposite directions, and an end plate 14 located at each of the two opposite ends of each of the two attachment rods 12. Each attachment rod 12 comprises a plurality of through holes 13 spaced along its length.

An equal predetermined number of weights 20 is arranged in two sets, each capable of being mounted at a hooking rod 12. In this embodiment, each set of weights 20 comprises four weights arranged in alphabetical order of A to D, namely, the first weight 20A, the second weight 20B, the third weight 20C and the fourth weight 20D, which gradually increase in weight from A to D. The user can selectively arrange the weights 20 in different combinations . In addition, the weights 20 are flat plate-shaped members having four sides, namely, opposite upper and lower sides and opposite left and right sides. In addition, each weight 20 includes an upper elongated slot 21 extending vertically downwardly from the upper side thereof, to receive an attachment pin 12 of the handle 10, a lower opening 22 located on the lower side thereof, and a scissors hook 30 mounted therein. The chisel hook 30 includes a hook unit 31 disposed on a lower side in the elongate upper slot 21, and an actuating unit 32 disposed in the lower opening 22, which can be driven by an external force to move the hook unit 31 between an open position (see FIG. 8) and a closed position (see FIG. 9). When in the closed position, the hook unit 31 is able to engage in a through hole 13 of the corresponding attachment rod 12 of the handle 10, fixing the weight 20 corresponding to the handle 10 In this embodiment, the chisel hook 30 comprises two hook elements 33 arranged crosswise and pivotally interconnected by a pivot 34 to the middle of the corresponding weight 20. Each hook member 33 has one end terminating in a hook portion 331, its other end terminating in a base portion 332. The hook portions 331 of the hook members 33 constitute the aforesaid hook unit 31. The base portions 332 of the hook members 33 form the actuating unit 32 mentioned above. The scissors hooks 30 of each weight 20 further include at least one resilient member 35, for example two members, adapted to hold the hook unit 31 of a chisel hook 30 in the closed position. The resilient members 35 may be elastic rubber members, resilient plastic members, elastic rubber-plastic members, or spring members each disposed on an outer side with respect to the two hook members 33. When the hook portions 331 hook members 33 are opened by an external force (see Figure 8), the two elastic members 35 are compressed to store elastic potential energy which is adapted to bring the hook members 33 to the closing position when the external force disappears.

The support base 40 defines a plurality of locating grooves 41 located on an upper side thereof to receive the weights 20. The selector 50 is mounted in the support base 40, and has a selection button 51 disposed thereon outside of the support base 40, and a plurality of control units 52 arranged in the positioning grooves 41. When the weights 20 are placed in the support base 40, the lower openings 22 of the weights 20 are attached to the respective control units 52. Turning the selection knob 51 makes it possible to adjust the angular positions of the control units 52 relative to one another, causing the actuating units 32 of the scissors hooks 30 of respective weights to open or close the units. 31 forming respective hooks. In this embodiment, the selector 50 further comprises a shaft 53 fixedly connected to the selection button 51, and at least one, for example two, cam wheels 54 mounted on the shaft 53 and able to rotate with the The shaft 53 and the selector knob 51 for moving the hook members 33 of the scissors hook 30 have weights 20 between the open position and the closed position. The cam wheels 54 form the above-mentioned control units 52. In addition, a single spring element (not shown) may be used in each weight to hold the hook unit 31 of the chisel hook 30 in the closed position. In this case, the two opposite ends of the spring element are respectively attached to the two hook elements of the chisel hook. Normally, the spring member holds the hook portions of the two hook members in the closed position. When the two hook members of the chisel hook are opened by the respective cam wheel of the respective control unit of the selector, the spring member is stretched so as to store elastic potential energy. Thus, the use of a single spring element in each weight makes it possible to obtain the same effect as said at least one aforementioned elastic member. In use, turn selection knob 51 to select the desired total weight. At this time, the control units 52 are rotated with the shaft 53 to the selected angle. When a control unit 52 reaches the open position shown in Fig. 8, the respective operating unit 32 is forced by the control unit 52 to open the corresponding hook unit 31, disengaging the unit. corresponding hook 31 of the through hole 13 corresponding to the corresponding attachment rod 12. Therefore, when the handle 10 is raised, the weight 20 is left in the corresponding locating groove 41 of the support base 40. On the contrary, when a control unit 52 is rotated to the position of 9, the corresponding actuating unit 32 is released from the corresponding hook unit 31, and the corresponding hook unit 31 is held by the elastic members 35 in the closed position and is engaged in the corresponding through hole 13 of the attachment rod 12, fixing the weight corresponding to the handle 10. The invention comprises the selector installed in the support base, simplifying the visual appearance of the dumbbell and avoiding touch the selector during the exercise. Therefore, the invention does involve an inventive step.

Claims (4)

REVENDICATIONS1. An adjustable dumbbell system comprising - a handle (10) comprising a gripping portion (11) and two gripping rods (12) each extending axially from two opposite ends of said gripping portion (11) in directions opposed, each of said attachment rods (12) comprising a plurality of through-holes (13); an equal predetermined number of weights (20) arranged in two assemblies each adapted to be mounted on said hooking rods (12) of said handle (10), said weights (20) being elements in the form of flat plates, each of said weights (20) comprising an opposing upper and lower side, and an opposite left and an opposite side, an upper elongated slot (21) extending vertically downward from said upper side for receiving one of said plurality of said weights hook (12) that includes the handle (10), a lower opening (22) at said lower side, and a scissors hook (30) mounted therein, said scissors hook (30). ) including a hook unit (31) disposed on a lower side in said elongated upper slot, an actuating unit (32) disposed in said lower opening (22) and adapted to be driven by an external force to move said hook unit (31) between a closed position in which said hook unit (31) is engaged in one of said through holes (13) of one of said attachment shafts (12) that includes said handle (10) for fixing said weight (20) corresponding to said handle (10), and an open position in which said hook unit (31) is disengaged from said corresponding hole (13) of the shackle rod (12) corresponding comprises said handle (10), and at least one resilient member (35) adapted to maintain said hook unit (31) in said closed position; a support base (40) including a plurality of locating grooves (41) on an upper side thereof for receiving said weights (20); anda selector (50) mounted in said support base (40), said selector (50) including a select button (51) located outside said support base (40), and a plurality of control units (52) disposed in said locating grooves (41), said control units (52) being each attached to the lower apertures of said weights (20) when said weights (20) are located in said locating grooves (41) which includes said a support base (40), said control units (52) being actuatable by means of said selection button (51) for driving said actuating units (32) of scissors hooks (30) of said weights (20) respective opening / closing of said respective hook units (31). An adjustable dumbbell system according to claim 1, wherein said chisel hook (30) comprises two cross-shaped hook members (33) pivotally connected to each other by a pivot (34). ) at a medial portion within said respective weight (20), each of said hook members (33) having an upper end terminating in a hook portion (331) and an opposite bottom end terminating in a base portion (332), the hook portions (331) of said hook members (33) constituting said hook unit (31), and the base portions (332) of said hook members (33) constituting said unit. actuation (32). An adjustable dumbbell system according to claim 2, wherein said at least one resilient member (35) of each of said weights (20) comprises two resilient members each disposed on an outer side of said two hook members (33) of said hooks scissors (30) of said respective weight (20), which are compressible to store elastic potential energy when said hook portions (331) of said two hook members (33) of said respective scissors hook (30) of said weight (20) are open. The adjustable dumbbell system of claim 1, wherein said selector (50) further comprises a shaft (53) fixedly connected to said select button (51); each said control unit being a cam wheel (54) mounted on said shaft (54) and rotatable therewith.