Arm-building device

Details Arm-building device Arm-building device

2000-09-26

2002-04-02

Richman, Glenn E. (Department: 3764)

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing resilient force resistance

C482S049000, C482S121000

Reexamination Certificate

active

06364816

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates generally to an exercise device, and more particularly to an arm-building device.
BACKGROUND OF THE INVENTION
As shown in
FIG. 1
, an arm-building device
80
of the prior art comprises two movable rods
81
and a resilient element
89
. The two movable rod
81
have a fastening portion
82
which is provided in one side with an edge
83
. The other side of the fastening portion
82
is level with the fastening portion
82
and is provided with an arm rod
84
extending downward therefrom to form a grip which is provided with a soft grip cover
85
. The fastening portion
82
serves as a pivot of the two movable arms
81
. Each edge
83
is provided with an upper hooked portion
831
and a lower hooked portion
832
. Located between the edge
83
and the upper hooked portion
831
and the lower hooked portion
832
are an upper recess
833
and a lower recess
834
, in which the resilient element
89
is disposed. In use, the user holds the soft grip cover
85
to operate the movable rods
81
in accordance with various positions of the resilient element
89
. As the resilient element
89
is at work, the resistance is brought about to attain the exercise effect.
Such a prior art device as described above is defective in design in that it does not provide its user a support to enable the user to apply the force uniformly, so as to prevent the movable rods from swinging aside to inflict an injury on the user or bystander.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a safe arm-building device.
The arm-building device of the present invention comprises a frame, two engagement members, two operation rods, two traction members, and a resilient member. The frame is provided in the bottom with a coupling portion. The two engagement members are rotatably mounted on the frame and are meshed with each other. The engagement members are provided with a connection portion and a pivoting portion which is separated from the axis of the engagement members by a predetermined distance. The operation rods are connected at one end with the connection portion of the engagement members such that other end of the operation rods serves as a hand grip to facilitate the operating of the operation rods, thereby actuating the two engagement members to turn. The traction members are pivoted at one end with the pivoting portion of the engagement members by a predetermined distance. The operation rods are connected at one end with the connection portion of the engagement members such that other end of the operation rods serves as a hand grip to facilitate the operating of the operation rods, thereby actuating the two engagement members to turn. The traction members are pivoted at one end with the pivoting portion of the engagement members such that the traction members are pivoted with each other by a bolt body. The resilient member is fixed at one end with the coupling portion of the frame, and at other end with the bolt body. As the engagement members are actuated by the operation rods to turn, the two traction members are actuated to displace upwards. The resilient member is pulled to bring about the resistance force to attain the exercise effect.


REFERENCES:
patent: 4465276 (1984-08-01), Cox
patent: 5246413 (1993-09-01), Koblick
patent: 5409436 (1995-04-01), Chang
patent: 5674164 (1997-10-01), Kravitz

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