TWI655021B - Treadmill - Google Patents

Abstract

A treadmill includes a rack unit, a running belt and a rear lift unit. The rack unit includes a chassis, a front rotating shaft and a rear rotating shaft. The running belt is disposed on the front rotating shaft and the rear rotating shaft, and is operable relative to the chassis. The rear lifting unit is mounted on the bottom. And the rear lift unit includes a rear actuating member, a pair of rear rotating rods driven by the rear actuating member, and a pair of pivoting rods respectively a rear connecting rod of the rod, a pair of rear struts for pivotally connecting the rear connecting rods, and a rear connecting rod connected between the rear rotating rods, and the setting of the rear lifting unit can be used to adjust the running The purpose of the machine slope.

Description

Treadmill

The present invention relates to a sports apparatus, and more particularly to a treadmill.

The basic structure of a typical electric treadmill includes a rack unit, a drive unit and a running belt.

For example, in the TW certificate No. I458254 patent, a front roller and a rear roller are respectively arranged on the front and rear ends of a frame body, and a running belt is disposed around the front roller and the rear roller, and a driving device is provided. The motor is mounted on the front side of the front roller, and the motor can drive the front roller and drive the running belt to generate a circulating operation.

In addition, as shown in the TW certificate number No. M505320 patent, a front lift frame and a rear lift frame are provided at the bottom of a running platform, and the rear lift frame has an outer frame and a pair of pivots. a lifting arm of the outer frame, a pair of side bars pivotally connected to the outer frame and pivotally connected to the lifting arms, and a cross bar is further disposed between the side bars, the cross bar is pivotally connected with a motor, and the horse is fading The driver can rotate a screw, the screw is screwed to a sleeve, and the other end of the sleeve is pivotally connected to a front lift frame, and the front lift frame is pivotally connected to the front end of the running platform. Starting the motor and driving the sleeve forward, the rear lift frame can be pulled up and the downhill training can be performed. When the motor is started and the sleeve is driven to move backward, the front lift frame can be pulled up to perform an uphill training.

The adjustable grade treadmill can achieve the intended operation purpose, because the rear lift frame and the front lift frame are both exposed under the running platform, even if the rear lift frame and the front lift frame After folding, it still occupies a considerable height, so that the overall thickness of the treadmill will be larger and the overall volume will be larger, which will occupy a larger volume during packaging, handling and storage.

Accordingly, it is an object of the present invention to provide a treadmill that can adjust a grade and has a simple structure and a reduced size treadmill.

Thus, the treadmill of the present invention comprises a frame unit, a running belt and a rear lifting unit. The rack unit includes a chassis, a front rotating shaft disposed on the chassis, and a rear rotating shaft disposed on the chassis. The chassis has a front end portion, a rear end portion opposite to the front end portion, and a rear end portion The front end portion extends to a bottom surface of the rear end portion and a top surface opposite to the bottom surface, and the front rotation shaft corresponds to the front end portion, and the rear rotation shaft corresponds to the rear end portion. The running belt is wound around the front rotating shaft and the rear rotating shaft, and can be operated relative to the chassis. The rear lift unit is mounted on the chassis and can drive the rear end of the chassis to generate lift. The rear lift unit includes a rear actuating member rotatably mounted between the front pivot shaft and the rear pivot shaft. a pair of rear pivoting rods pivotally coupled to the chassis and driven by the rear actuator to be pivotable relative to the chassis, a pair of rear links respectively pivotally mounted to the rear swinging rods, and a pair of respectively a rear strut pivotally connected to the chassis and pivotally connected to the rear links and a rear post connected between the rear swivels, the rear links each having a pivotal connection a rear first end of the rod and a second end opposite to the rear first end and pivotally connected to the rear struts, the rear struts approaching the rear end portion and each having a pivotal connection The rear pivot end of the chassis and a rear swing end opposite to the rear pivot end, the rear second ends of the rear links are respectively pivotally connected between the rear pivot ends and the rear swing ends.

The utility model has the advantages that the purpose of adjusting the gradient of the treadmill can be achieved by using the setting of the rear lifting unit, and the overall structure of the rear lifting unit is simple, and the volume after folding is small, which is favorable for packaging, handling and collecting. Reduce the volume.

Referring to Figures 1 and 2, an embodiment of the treadmill of the present invention includes a frame unit 10, a drive unit 20, a running belt 30 and a rear lift unit 40.

The frame unit 10 includes a chassis 11 , a front rotating shaft 12 disposed on the chassis 11 , and a rear rotating shaft 13 disposed on the chassis 11 . The chassis 11 has a front end portion 111 opposite to the front end a rear end portion 112 of the portion 111, a bottom surface 113 extending from the front end portion 111 to the rear end portion 112, and a top surface 114 opposite to the bottom surface 113, the front rotating shaft 12 corresponding to the front end portion 111, the rear rotating shaft 13 corresponds to the rear end portion 112.

The driving unit 20 has a motor 21 mounted between the front rotating shaft 12 and the rear rotating shaft 13 and adjacent to the front rotating shaft 12, and a transmission member 22 driven by the motor 21 and capable of driving the front rotating shaft 12 to rotate. The transmission member 22 is a belt.

The running belt 30 is wound around the front rotating shaft 12 and the rear rotating shaft 13, and is driven by the motor 21 to generate a circulating operation with respect to the chassis 11.

The rear lifting unit 40 is mounted on the chassis 11 and can drive the rear end portion 112 of the chassis 11 to be lifted and lowered. The rear lifting unit 40 includes a rotatably mounted to the front rotating shaft 12 and the rear rotating shaft 13 A rear actuator 41 adjacent to the driving unit 20, a pair of rear rotating rods 42 pivotally connected to the chassis 11 and driven by the rear actuator 41 to pivot relative to the chassis 11 a rear connecting rod 43 pivotally connected to the rear rotating rods 42, a pair of rear struts 44 pivotally connected to the bottom frame 11 and pivotally connected to the rear connecting rods 43, respectively, connected to the rear slewing A rear link 45 between the rods 42 and a rear pull rod 46 connected between the rear links 43. The rear actuator 41 has a rear motor 411, a rear lead screw 412 driven by the rear motor 411 to rotate, and a rear guide screw 413 screwed to the rear lead screw 412. The rear guide nut 413 There is a rear pivoting portion 414 pivotally connected to the rear connecting rod 45. The rear connecting rods 43 each have a rear first end 431 pivotally connected to the rear rotating rod 42 and a first end opposite to the rear end 431 is pivotally connected to the rear second end 432 of the rear struts 44. The rear struts 44 are adjacent to the rear end portion 112 and each have a rear pivot end 441 pivotally connected to the chassis 11. a rear swinging end 442 opposite to the rear pivoting end 441 and a rear roller 443 pivotally disposed on the rear swinging end 442. The rear second ends 432 of the rear connecting rods 43 are respectively pivotally connected to the rear pivots The end 441 is between the rear end 441 and the rear swing end 442.

As shown in FIG. 2 and FIG. 3, the rear lifting unit 40 is in a folded state with respect to the chassis 11. At this time, the bottom surface 113 of the chassis 11 has a small angle with the ground. The top surface 114 has a larger slope relative to the ground.

As shown in FIG. 4, when the rear motor 411 of the rear lift unit 40 is activated, the rear motor 411 drives the rear lead screw 412 to rotate in place, and the rear guide screw 413 is screwed to the rear lead screw 412. The rear guide screw 413 is displaced along the axial direction of the rear lead screw 412, and the rear guide nut 413 interlocks the rear post 45, and the rear rotary rod 42 is opposite to the rear guide rod 42. The bottom frame 11 is rotated, and the rear rotary rods 42 are connected to the rear connecting rods 43 again. The rear connecting rods 43 and the rear connecting rods 44 are pivoted relative to the chassis 11 and as shown in the figure. 4, when the rear strut 44 and the bottom surface 113 have a clamping angle, the bottom surface 113 also has the largest angle between the ground surface 113 and the ground surface. At this time, the top surface 114 has a smaller angle with respect to the ground. slope.

Therefore, the present invention utilizes the motor 21 of the driving unit 20 to be mounted between the front rotating shaft 12 and the rear rotating shaft 13 and adjacent to the front rotating shaft 12, and the distance between the front rotating shaft 12 and the rear rotating shaft 13 is Under the same conditions of the existing treadmill, the occupation length and volume of the treadmill can be reduced, and the appearance and the occupied space can be beautified, and the occupied volume can be reduced and the cost can be reduced during packaging, handling and collection. In addition, with the arrangement of the rear lift unit 40, the purpose of adjusting the gradient of the treadmill can also be achieved.

In summary, the overall structure of the treadmill of the present invention is simple, the manufacturing assembly is easy, and the occupation volume of the treadmill can be reduced and reduced, and the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

10‧‧‧Rack unit

11‧‧‧ Chassis

111‧‧‧ front end

112‧‧‧ Back end

113‧‧‧ bottom

114‧‧‧ top surface

115‧‧‧ chute

116‧‧‧Pivot hole

12‧‧‧ Front shaft

13‧‧‧ Rear shaft

20‧‧‧Drive unit

21‧‧‧Motor

22‧‧‧ Transmission parts

30‧‧‧ running belt

40‧‧‧After ascending unit

41‧‧‧After actuating parts

411‧‧‧ rear motor

412‧‧‧ rear lead screw

413‧‧‧ rear guide bushing

414‧‧‧ rear pivoting

42‧‧‧ Rear Rotary Rod

43‧‧‧ Rear Link

First end after 431‧‧

Second end after 432‧‧

44‧‧‧ rear strut

441‧‧‧ rear pivot end

442‧‧‧ rear swing end

443‧‧‧Back wheel

45‧‧‧post post

46‧‧‧ rear pull rod

The other features and advantages of the present invention will be apparent from the embodiments of the present invention. FIG. 1 is an incomplete perspective view of an embodiment of the treadmill of the present invention; Figure 3 is a partial enlarged view of Figure 2; and Figure 4 is a schematic view of the operation of the rear lift unit of one of the embodiments.

Claims (3)

A treadmill comprising: a frame unit comprising a chassis, a front rotating shaft disposed on the chassis, and a rear rotating shaft disposed on the chassis, the chassis having a front end portion and a front end portion opposite to the front end portion a rear end portion extending from the front end portion to a bottom surface of the rear end portion and a top surface opposite to the bottom surface, the front rotation shaft corresponding to the front end portion, the rear rotation shaft corresponding to the rear end portion; And being disposed on the front rotating shaft and the rear rotating shaft to be operable with respect to the chassis; and a rear lifting unit mounted on the chassis and capable of driving the rear end portion of the chassis to generate lifting, the rearward The lifting unit includes a rear actuating member rotatably mounted between the front rotating shaft and the rear rotating shaft, a pair of pivoting members of the chassis and being driven by the rear actuating member to pivot relative to the chassis a rear rotating rod, a pair of rear connecting rods respectively pivoted on the rear rotating rods, a pair of rear struts pivotally connected to the bottom frame and pivotally connected to the rear connecting rods, and a rear connecting rod and a connecting rod a rear connecting rod between the rotating rods, each of the rear connecting rods having a rear first end pivoted to the rear rotating rods and opposite to The rear first end is pivotally connected to the rear second end of the rear struts, the rear struts are adjacent to the rear end portion, and each has a rear pivoting end pivotally connected to the chassis and a reverse The rear second end of the rear connecting rod is pivotally connected between the rear pivoting end and the rear swinging end respectively. The treadmill of claim 1, wherein the rear actuator of the rear lift unit has a rear motor, a rear lead screw driven by the rear motor to rotate, and a screw threaded to the rear lead screw. a rear guide nut having a rear pivoting portion pivotally connected to the post, the motor is activated to drive the rear guide nut to be displaced along the axial direction of the rear lead screw, and the rear guide screw The sleeve can pivot the rear swing bars, the rear links, and the rear struts to pivot relative to the chassis. The treadmill according to claim 1, further comprising a driving unit capable of driving the running belt, the driving unit having a motor mounted between the top surface and the bottom surface of the chassis, and a motor driven by the motor And the transmission member that rotates the front shaft can be driven.