GB2290981A - Rowing machine - Google Patents

Rowing machine Download PDF

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Publication number
GB2290981A
GB2290981A GB9413702A GB9413702A GB2290981A GB 2290981 A GB2290981 A GB 2290981A GB 9413702 A GB9413702 A GB 9413702A GB 9413702 A GB9413702 A GB 9413702A GB 2290981 A GB2290981 A GB 2290981A
Authority
GB
United Kingdom
Prior art keywords
hole
hydraulic cylinder
rope
rotary wheel
opposite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9413702A
Other versions
GB9413702D0 (en
Inventor
Leao Wang
Peter Wu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Greenmaster Industrial Corp
Original Assignee
Greenmaster Industrial Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Greenmaster Industrial Corp filed Critical Greenmaster Industrial Corp
Priority to GB9413702A priority Critical patent/GB2290981A/en
Priority to FR9408538A priority patent/FR2722106A1/en
Publication of GB9413702D0 publication Critical patent/GB9413702D0/en
Publication of GB2290981A publication Critical patent/GB2290981A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/15—Arrangements for force transmissions
    • A63B21/151—Using flexible elements for reciprocating movements, e.g. ropes or chains
    • A63B21/153—Using flexible elements for reciprocating movements, e.g. ropes or chains wound-up and unwound during exercise, e.g. from a reel
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/008—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters
    • A63B21/0083—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters of the piston-cylinder type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/06—User-manipulated weights
    • A63B21/068—User-manipulated weights using user's body weight
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0076—Rowing machines for conditioning the cardio-vascular system
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0076—Rowing machines for conditioning the cardio-vascular system
    • A63B2022/0079—Rowing machines for conditioning the cardio-vascular system with a pulling cable
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/22—Resisting devices with rotary bodies
    • A63B21/225—Resisting devices with rotary bodies with flywheels
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0015—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with an adjustable movement path of the support elements
    • A63B22/0023—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with an adjustable movement path of the support elements the inclination of the main axis of the movement path being adjustable, e.g. the inclination of an endless band
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0087—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with a seat or torso support moving during the exercise, e.g. reformers
    • A63B22/0089—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with a seat or torso support moving during the exercise, e.g. reformers a counterforce being provided to the support

Abstract

A rowing machine includes an inclined seat base frame (20) supporting a rotary wheel (40), a first rope (50) inserted through a hole (44) on the rotary wheel (40) and having two opposite ends (52; 54) wound round two tubular flanges (42; 43) on the rotary wheel (40) and then connected to the actuating rod (32) of a hydraulic cylinder (30) being connected to a rear stand (24) on the base frame (20) by a hydraulic cylinder holder (60), and a second rope (70) wound round the rotary wheel (40) and coupled with a pull handle (23). <IMAGE>

Description

Title - Rowing Machine The present invention relates to a rowing machine.
Several types of rowing machine are known and have been marketed.
For example, US Patent No. 4,606,538 discloses a physical exercise device which comprises a base having a bracket at one end, a seat member detachably engaged with the base, a supporting frame having one end detachably engaged with the bracket, a handling means having a connecting plate, pivotally engaged to the other end of the supporting frame, and a hydraulic cylinder having one end pivotally connected to the supporting frame and the other end detachably connected to the connecting plate for producing hydraulic resistance. This structure of physical exercise device is not satisfactory in function because the user must bend the body heavily and then erect the trunk again during each stroke of rowing causing the user to tire quickly.
US Patent No. 4,621,623 discloses a multi-function gymnastic device which consists of a pedestal capable of being erected and two rocker components installed on the two sides of the pedestal and capable of being assembled horizontally when the pedestal is in an erect state so that the rocker components can be pushed and pulled to-and-fro for boat-rowing sports, up-and-down for chestexpanding sports, and moved for 3600 so as to be in keeping with each other to change the mode of sports and to achieve the effect of multi-function sports. The gymnastic device further comprises two hydraulic cylinders connected to the rockers to give hydraulic resistance. One drawback of this device is its complicated structure and high cost. Another drawback is that the hydraulic cylinders may produce different hydraulic resistance causing the player difficulty in moving the rockers evenly and smoothly.Still another drawback of this structure of gymnastic device is that the player must bend his/her trunk within a big angle during exercises, causing the belly to ache.
Chinese Patent No. 78,200,017 discloses a rowing machine which uses a flywheel to produce resistance. This structure of rowing machine is complicated and expensive, and does not eliminate the aforesaid drawbacks. Furthermore, the flywheel produces noise during the operation of the machine.
An object of the present invention is to provide a rowing machine which is simple in structure.
It is another object of the present invention to provide a rowing machine which is inexpensive to manufacture.
It is still another object of the present invention to provide a rowing machine which is orientated in a sloping position to help the player exercise the body smoothly without causing the belly to ache.
It is still another object of the present invention to provide a rowing machine which uses a first rope and a second rope respectively wound round a rotary wheel in reversed directions for boat-rowing sports, and a hydraulic cylinder to provide even hydraulic resistance to the rotary wheel.
It is still another object of the present invention to provide a hydraulic cylinder holder to hold the rear end of the hydraulic cylinder which can be adjusted to move the hydraulic cylinder in either direction so that the tension of the first rope can be adjusted.
According to the present invention there is provided a rowing machine having an inclined seat comprising an elongated base frame supported between a front stand and a rear stand in an inclined position, a sliding seat mounted on said base frame, two foot boards bilaterally mounted on said front stand, a rotary wheel received in a slot on said elongated base frame and turned on an axle being fastened in said slot, a hydraulic cylinder holder mounted on said rear stand, a hydraulic cylinder the rear end of which is connected to said hydraulic cylinder holder and an actuating rod coupled at a front end moved to produce a hydraulic resistance, a first rope connected between said rotary wheel and said actuating rod, a second rope having one end connected to said rotary wheel and an opposite end coupled with a handle for pulling wherein said rotary wheel has a peripheral groove around the periphery thereof, two tubular flanges longitudinally aligned in the centre at two opposite sides and respectively mounted around said axle, a first through hole and a second through hole respectively disposed in parallel with said tubular flanges at two opposite locations, a wire hole imparting communication between said peripheral groove and said second through hole; said first rope is inserted through said first through hole, having two opposite ends respectively wound round said tubular flanges in the clockwise direction and then connected to said actuating rod; said second rope has one end inserted through said wire hole and retained in said second through hole, and an opposite end wound round said peripheral groove in the counter-clockwise direction and then coupled to said handle.
The invention will now be described further by way of example with reference to the annexed drawings in which: Figure 1 is an elevational view of a rowing machine having an inclined seat according to the preferred embodiment of the present invention; Figure 2 is a sectional view of part of the rowing machine shown in Figure 1; Figure 3 is a cutaway of the rotary wheel part shown in Figure 2; Figure 4 is an exploded view of a link used in the rowing machine of the present invention; and Figure 5 is a side view in plain of the rowing machine shown in Figure 1.
Referring to Figure 1, the rowing machine comprises an elongated base frame 20 supported in a sloping position on two stands 22 and 24 of different heights, a sliding seat 21 mounted on the elongated base frame 20 and releasably fixed at the desired location, two foot boards 26 bilaterally mounted on the front stand 22, an adjustable hydraulic cylinder holder 60 (Figure 4) mounted on the rear stand 24 to hold a hydraulic cylinder 30 below the base frame 20, and a rotary wheel 40 mounted on an axle 41 being transversely disposed within a slot 28 on the elongated base frame 20 near the foot boards 26.
Referring to Figures 2, 3 and 4 and Figure 1 again, the rotary wheel 40 has a peripheral groove 46 around the periphery thereof, two tubular flanges 42 and 43 longitudinally aligned in the centre at two opposite sides and respectively mounted around the axle 41, a first through hole 44 and a second through hole 45 disposed at two opposite locations, a wire hole 47 imparting communication between the peripheral groove 46 and the second through hole 45. A first rope 50 is inserted through the first through hole 44, having two opposite ends 52 and 54 respectively wound round the tubular flanges 42 and 43 in the same direction (the clockwise direction) and then connected to the actuating rod 32 of the hydraulic cylinder 30 through a link 60.
There is provided a second rope 70 having one end inserted through the wire hole 47 and retained in the second through hole 45, and an opposite end wound round the peripheral groove 46 in the counter-clockwise direction and then coupled to a handle 23.
Referring to Figure 5 and Figure 4 again, the hydraulic cylinder holder 60 comprises of a U-shaped mounting frame 61, a connecting frame 62, a pivot pin 63, and an adjustment nut 64. The mounting frame 61 is welded to the rear stand 24 at an inner side, having two elongated slots 67 alinged on two opposite ends thereof and spaced by a gap 65, and a through hole 66 alinged with a through hole (not shown) on the rear stand 24. The connecting frame 62 comprises a screw rod 68 at one end inserted through the through hole 66 on the mounting frame 61 and the aligned through hole on the rear stand 24 and screwed up with the adjustment nut 64, and two through holes 69 aligned on the forked front end thereof. The hydraulic cylinder 30 has an eye end 31 connected between the through holes 69 within the elongated slots 67 by the pivot pin 63.The actuating rod 32 of the hydraulic cylinder 30 is coupled to the two opposite ends 52 and 54 of the first rope 50. By turning the adjustment nut 64 in either direction, the position of the hydraulic cylinder 30 is adjusted relative to the rear stand 24 and therefore the tension of the first rope 50 is adjusted.
Referring to Figure 5 again, when the user sits on the seat 21 with the feet rested on the foot boards 26 and the hands holding the handle 23, the handle 23 is then pulled backwards toward the seat 21 to pull the second rope 70. When the second rope 70 is pulled backwards, the rotary wheel 40 is turned clockwise causing the tubular flanges 42 and 43 to take up the two opposite ends 52 and 54 of the first rope 50, and therefore the actuating rod 32 is pulled out of the hydraulic cylinder 30 (see Figure 5). When the handle 23 is released, the actuating rod 32 is moved back to its former position, causing the rotary wheel 40 turned counter-clockwise, and therefore the second rope 70 is wound back.
While only one embodiment of the present invention has been shown and described, it will be understood that various modifications and changes could be made without departing from the scope of the invention as defined in the appended claims.

Claims (3)

  1. Claims
    1A rowing machine having an inclined seat comprising an elongated base frame supported between a front stand and a rear stand in an inclined position, a sliding seat mounted on said base frame, two foot boards bilaterally mounted on said front stand, a rotary wheel received in a slot on said elongated base frame and turned on an axle being fastened in said slot, a hydraulic cylinder holder mounted on said rear stand, a hydraulic cylinder the rear end of which is connected to said hydraulic cylinder holder and an actuating rod coupled at a front end moved to produce a hydraulic resistance, a first rope connected between said rotary wheel and said actuating rod, a second rope having one end connected to said rotary wheel and an opposite end coupled with a handle for pulling wherein said rotary wheel has a peripheral groove around the periphery thereof, two tubular flanges longitudinally aligned in the centre at two opposite sides and respectively mounted around said axle, a first through hole and a second through hole respectively disposed in parallel with said tubular flanges at two opposite locations, a wire hole imparting communication between said peripheral groove and said second through hole; said first rope is inserted through said first through hole, having two opposite ends respectively wound round said tubular flanges in the clockwise direction and then connected to said actuating rod; said second rope has one end inserted through said wire hole and retained in said second through hole, and an opposite end wound round said peripheral groove in the counter-clockwise direction and then coupled to said handle.
  2. 2 A rowing machine as claimed in claim 1 in which the hydraulic cylinder holder comprises a U shaped mounting frame welded to said rear stand and having two elongated slots aligned on two opposite ends thereof and a through hole in the middle, a connecting frame having a U-shaped head at one end suspended between the two opposite ends of said U-shaped mounting frame and a screw rod at an opposite end inserted through the through hole on said U-shaped mounting frame, a pivot pin inserted through the elongated slots on the two opposite ends of said U-shaped mounting frame and through holes on the U-shaped head of said connecting frame and an eye end on said hydraulic cylinder to connect said hydraulic cylinder to said connecting frame.
  3. 3 A rowing machine having an inclined seat substantially as described hereinbefore with reference to and as illustrated in the accompanying drawings of Figures 1 to 5.
GB9413702A 1994-07-07 1994-07-07 Rowing machine Withdrawn GB2290981A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9413702A GB2290981A (en) 1994-07-07 1994-07-07 Rowing machine
FR9408538A FR2722106A1 (en) 1994-07-07 1994-07-11 Rowing machine for exercising

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9413702A GB2290981A (en) 1994-07-07 1994-07-07 Rowing machine
FR9408538A FR2722106A1 (en) 1994-07-07 1994-07-11 Rowing machine for exercising

Publications (2)

Publication Number Publication Date
GB9413702D0 GB9413702D0 (en) 1994-08-24
GB2290981A true GB2290981A (en) 1996-01-17

Family

ID=26231285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9413702A Withdrawn GB2290981A (en) 1994-07-07 1994-07-07 Rowing machine

Country Status (2)

Country Link
FR (1) FR2722106A1 (en)
GB (1) GB2290981A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227424A (en) * 1989-01-31 1990-08-01 Tunturipyoerae Oy Rowing exerciser

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227424A (en) * 1989-01-31 1990-08-01 Tunturipyoerae Oy Rowing exerciser

Also Published As

Publication number Publication date
GB9413702D0 (en) 1994-08-24
FR2722106A1 (en) 1996-01-12

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)