TWI674127B - A treadmill having a lifting device - Google Patents

Abstract

A treadmill with a lifting device includes a frame unit, a running belt wound around the frame unit, and a lifting device. The rack unit includes a base frame and two rotating shafts. The base frame has a guide. The lifting device is installed on the base frame and includes an actuator rotatably mounted on the base frame. The driving member drives a driving rod capable of generating and retracting relative to the actuating member, and a supporting frame connected to the driving rod. The supporting frame has a pivot member pivotally disposed on the chassis, and a pivot member disposed on the pivot member. The guide member on one side and the abutment member provided on the other side of the pivot member, activating the actuating member can cause the driving rod to drive the support frame to rotate with the pivot member as the rotation center, and the The support frame can drive the base frame to rise or spin down. Thereby, the overall structure of the treadmill is simple, and the manufacturing and assembly are easy.

Description

Treadmill with lifting device

The invention relates to a sports equipment, in particular to a treadmill with a lifting device.

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

As shown in the TW Certificate No. M505320 patent, a front lifting frame and a rear lifting frame are provided at the bottom of a running platform. The rear lifting frame has an outer frame and a pair of pivots connected to the outer frame. Lifting arm, a pair of side rods pivoted to the outer frame and pivoting to the lifting arms, and a cross bar is arranged between the side rods. The cross bar is pivotally connected to a motor, which can drive a The screw rotates, the screw is screwed with a sleeve, and the other end of the sleeve is pivotally connected with a front lifting frame, which is pivotally connected with the front end of the running platform. Start the motor and drive the sleeve to move forward, which can cause the rear lift frame to rise, and can perform downhill training. When the motor is started and the sleeve is driven to move backward, the front lifting frame can be dragged to generate upward movement, and uphill training can be performed.

Although this kind of adjustable treadmill can achieve the expected operation purpose, because the rear lift frame and the front lift frame have many components, the manufacturing assembly is troublesome, and the rear lift frame and the front lift frame Most of the components are exposed below the running platform, and the components of the rear lifting frame and the front lifting frame may be damaged during transportation.

Therefore, an object of the present invention is to provide a treadmill with a lifting device which has a simple structure, is easy to assemble and manufacture, and has an actuating member hidden inside.

Therefore, the treadmill with a lifting device of the present invention includes a rack unit, a running belt, and a lifting device. The rack unit includes a chassis, a front rotation shaft whose shaft is disposed on the chassis, and a rear rotation shaft whose shaft is disposed on the chassis. The chassis has a front end portion, and a longitudinal axis opposite to the front end portion. A rear end portion, a bottom surface extending from the front end portion to the rear end portion, a top surface opposite to the bottom surface, and a guide member approaching one of the front end portion and the rear end portion. The running belt is wound around the front rotating shaft and the rear rotating shaft, and can run relative to the chassis. The lifting device is installed on the chassis and can drive one of the front end portion and the rear end portion of the chassis to rise and fall. The lifting device includes an actuating member rotatably mounted on the chassis, and a receiving device. The actuating member drives a driving rod capable of generating and retracting relative to the actuating member, and a support frame connected to the driving rod and rotatably mounted on the chassis. The actuator is interposed between the top surface and the bottom surface. In between, the support frame has a shaft pivot member whose shaft is disposed on the bottom frame, a guide slide member which is disposed on one side of the shaft pivot member and slidably penetrates the guide member, and an opposite guide slide member. Pieces and set at the pivot The supporting piece on the other side of the piece, when the actuating piece is activated, the driving rod can drive the supporting frame to rotate with the shaft pivot as the center of rotation, and the supporting frame can drive the chassis to rise or fall.

The effect of the present invention is that the lifting device has a simple structure and is easy to assemble and assemble, and the use of the actuating member between the top surface and the bottom surface can ensure that the actuating member is not subject to foreign objects during transportation. Hit.

10‧‧‧ Rack Unit

11‧‧‧ underframe

111‧‧‧ front end

112‧‧‧back end

113‧‧‧ stringer

113’‧‧‧ top wall

113 "‧‧‧ bottom wall

114‧‧‧ beam

114’‧‧‧ Pivot hole

115‧‧‧ underside

116‧‧‧Top

14‧‧‧ pivot ear

20‧‧‧Drive unit

21‧‧‧Motor

30‧‧‧ running belt

40‧‧‧Lifting device

41‧‧‧actuator

411‧‧‧actuating motor

412‧‧‧lead screw

413‧‧‧ Pivot

42‧‧‧Driver

43‧‧‧Support

117‧‧‧Guide

117’‧‧‧ guide hole

118‧‧‧ sidewall

119‧‧‧space

119’‧‧‧ trough

12‧‧‧ front hinge

13‧‧‧ rear hinge

431‧‧‧ cantilever

432‧‧‧Guide

433‧‧‧bearing pieces

434‧‧‧ Pivot

X‧‧‧ longitudinal axis

Y‧‧‧ Horizontal axis

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, wherein: FIG. 1 is a three-dimensional combined view of an embodiment of a treadmill with a lifting device according to the present invention; FIG. 2 is the implementation An incomplete three-dimensional schematic diagram of an example illustrates a chassis and a lifting device; FIG. 3 is an exploded perspective view of FIG. 2; FIG. 4 is a schematic cross-sectional view of one of the embodiments, illustrating that the lifting device is not operating. And the chassis is located at a minimum slope; FIG. 5 is a schematic diagram of a slope adjustment similar to that of FIG. 4 illustrating that the lifting device is activated and the chassis is located at a middle slope; and FIG. 6 is another slope similar to FIG. 4 The adjustment diagram shows that the lifting device is activated and the chassis is located at a maximum slope.

Referring to FIGS. 1, 2 and 3, an embodiment of a treadmill with a lifting device according to the present invention includes a rack unit 10, a driving unit 20, a running belt 30 and a lifting device 40.

The rack unit 10 includes a base frame 11, a front rotating shaft 12 with a shaft disposed on the base frame 11, and a rear rotating shaft 13 with a shaft disposed on the base frame 11.

The chassis 11 has a front end portion 111, a rear end portion 112 opposite to the front end portion 111, a pair of side members 113 extending from the front end portion 111 to the rear end portion 112 and extending along a longitudinal axis X, Three vertical intersections are connected between the longitudinal beams 113 and extend along a transverse axis Y that intersects the longitudinal axis X perpendicularly. A transverse beam 114 extends from the front end 111 to the rear end 112 and is formed by A bottom surface 115 defined by the side members 113, a top surface 116 opposite to the bottom surface 115, and a guide 117 approaching the front end 111. The longitudinal beams 113 are inverted U-shaped in cross section perpendicular to the longitudinal axis X, and have a top wall 113 'corresponding to the top surface 116, a bottom wall 113 "corresponding to the bottom surface 115, and a connection to the A side wall 118 between the top wall 113 ′ and the bottom wall 113 ″, and a pivot ear 14 protruding downward from the bottom wall 113 ″, the top wall 113 ′, the bottom wall 113 ″ and the side wall 118 are jointly defined A space 119 is provided. The guide member 117 has two arc-shaped guide holes 117 ′ respectively disposed on the side walls 118. Each bottom wall 113 ″ has a through groove 119 connected to the corresponding space 119. '. The front rotation shaft 12 axis is provided at the front end 111, and the rear rotation The shaft 13 is provided on the rear end portion 112. In addition, the central beam 114 is provided with a pivot hole 114 '.

The driving unit 20 has a motor 21 mounted on a beam 114 closest to the front rotating shaft 12.

The running belt 30 is wound around the front rotating shaft 12 and the rear rotating shaft 13 and can be driven relative to the chassis 11 by the motor 21.

The lifting device 40 is mounted on the base frame 11 and can drive the front end 111 of the base frame 11 to rise and fall. The lifting device 40 includes an actuating member 41 rotatably mounted on the base frame. The moving member 41 drives a driving rod 42 that can be retracted relative to the actuating member 41, and a supporting frame 43 connected to the driving rod 42 and rotatably mounted on the chassis 11. The actuating member 41 is interposed between the top surface 116 and the bottom surface 115, and has a uniform motion motor 411 and a lead screw 412 which can be rotated by the actuation motor 411. The actuation motor 411 is pivotally connected to The cross beam 114 is located in the middle and has a pivoting portion 413 that can be pivotally connected to the pivot hole 114 ′. The driving rod 42 is disposed outside the lead screw 412. The supporting frame 43 has a pair of curved cantilever arms 431, a guide sliding member 432 connected between the cantilever arms 431 and slidably passing through the guide holes 117 ', and a connecting member connected to the cantilever arms 431. And a pair of supporting members 433 opposite to the sliding member 432 and a pair of pivot members 434 interposed between the guiding member 432 and the supporting member 433, and the cantilevers 431 are disposed in the spaces 119. And in the through grooves 119 ', the pivots The member 434 is passed through the cantilever 431 and the shaft is provided on the pivot ears 14, and the guide holes 117 'are concentric with the shaft pivot members 434.

In order to further understand the function, technical means, and expected effects of the various elements of the present invention, the following description is further described, and it is believed that the present invention will have a deeper and more specific understanding.

As shown in FIG. 1 again, when the assembling of the treadmill with the lifting device of the present invention is completed, the driving unit 20 is used to drive the front rotating shaft 12 to rotate, and the front rotating shaft 12 can drive the running belt 30 relative to the bottom. The rack 11 is in operation, which can provide an operator for brisk walking or running and achieve fitness purposes.

As shown in FIG. 2 and FIG. 4, it is shown that the actuating motor 411 of the lifting device 40 is not started, and the guide sliding member 432 is located on one side of the guide holes 117 ′ closest to the actuating motor 411. At this time, the bottom frame 11 is located at a minimum slope, that is, the bottom surface 115 is substantially parallel to the ground, and the top surface 116 has a minimum gradient.

As shown in FIG. 5 again, when the actuating motor 411 of the lifting device 40 is started, and the lead screw 412 is rotated and drives the driving rod 42 to extend relative to the actuating motor 411, the driving rod 42 pushes The guide sliding member 432 is slid along the guide holes 117 ′, and when the guide sliding member 432 is located at an intermediate position of the guide holes 117 ′, the support frame 43 as a whole is generated with the shaft pivot 434 as a rotation center. Rotate and use the abutment member 433 to abut the ground, the front end 111 of the chassis 11 will be supported. At this time, the slope of the chassis 11 becomes larger, and the chassis 11 is located at a middle slope. .

As shown in FIG. 6 again, when the actuating motor 411 of the lifting device 40 is continuously activated, and the lead screw 412 continues to rotate and drives the driving rod 42 to extend relative to the actuating motor 411, the driving rod 42 When the guide sliding member 432 is pushed to the other side farthest from the actuating motor 411, the supporting frame 43 as a whole will rotate with the pivot members 434 as the center of rotation, and the supporting member 433 will be used. Against the action of the ground, the slope of the chassis 11 becomes larger, and the chassis 11 is located at a maximum slope.

When the actuation motor 411 is driven in the reverse direction, the support frame 43 can drive the base frame 11 to spin down.

Therefore, the present invention utilizes the cooperation of the lifting device 40 and the chassis 11 to adjust the use gradient of the chassis 11 when the actuation motor 411 is activated. In addition, the overall structure of the lifting device 40 is simple and easy to assemble and manufacture, and the operation of using the support frame 43 to drive the base frame 11 to lift or spin down is quite easy.

Furthermore, by using the actuating member 41 pivoted on the beam 114 and the action of the actuating member 41 between the top surface 116 and the bottom surface 115, the actuating member 41 can be hidden inside the chassis 11. During the transportation, the actuator 41 can be prevented from being damaged by foreign objects.

In addition, the cantilever 431 of the lifting device 40 of the present invention is disposed in the spaces 119 and is inserted in the through grooves 119 ', so the space 119 of the longitudinal beams 113 can be used and can be hidden in The interior of the chassis 11 can not only beautify the appearance, but also effectively utilize the space 119 of the chassis 11.

It is worth mentioning that the lifting device 40 of the present invention is described as being capable of generating front lifting, and of course, it can also be applied to rear lifting (not shown).

To sum up, the treadmill of the present invention with a lifting device has a simple overall structure, easy manufacturing and assembly, and can achieve the purpose of adjusting the slope of the use of the chassis 11, which can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

Claims (3)

A treadmill with a lifting device includes: a frame unit including a chassis, a front pivot shaft with a shaft provided on the chassis, and a rear pivot shaft with a shaft provided on the chassis, the chassis having a front end, A rear end portion opposite to the front end portion along a longitudinal axis, a bottom surface extending from the front end portion to the rear end portion, a top surface opposite to the bottom surface, and a direction approaching the front end portion and the rear end One of the end guides; a running belt around the front shaft and the rear shaft, which can rotate relative to the chassis; and a lifting device, which is installed on the chassis and can drive the chassis One of the front end portion and the rear end portion of the chassis is raised and lowered. The lifting device includes an actuating member rotatably mounted on the chassis, and is driven relative to the actuating member to be driven by the actuating member. A telescopic driving rod, and a supporting frame connected to the driving rod and rotatably mounted on the chassis; the actuating member is interposed between the top surface and the bottom surface; the supporting frame has a pair of shafts arranged on the chassis; A pivot member of the chassis, a sliding member provided on one side of the pivot member, and slidably passing through the guide A sliding guide of the first sliding member, and a supporting member opposite to the sliding guide and disposed on the other side of the pivot member, activating the actuating member can cause the driving rod to drive the support frame to rotate with the pivot member A rotation is generated in the center, and the support frame can drive the chassis to rise or descend. The treadmill with a lifting device according to claim 1, wherein the chassis of the frame unit includes two longitudinal beams extending along the longitudinal axis, and at least one intersecting connection between the longitudinal beams and along the A transverse beam extending perpendicularly to the longitudinal axis and transverse axis extending, the guide member has two arc-shaped guide holes respectively arranged on the longitudinal beams, and the guide holes are concentric with the shaft pivot members. The actuator is pivotally connected to the beam. The treadmill with a lifting device according to claim 2, wherein the longitudinal beam of the frame unit is inverted U-shaped in cross section perpendicular to the longitudinal axis, and has a top wall, a bottom wall, and a connection A side wall is defined between the top wall and the bottom wall. The top wall, the bottom wall and the side wall jointly define a space. The guide holes are respectively disposed on the side walls, and each bottom wall has a communication with each other. The support frame also has a pair of cantilevers through the corresponding space. The guide slide, the abutment member and the fulcrum are connected to the cantilevers, and the cantilevers are arranged in the spaces and penetrated in the In the groove.