TWM632778U - Drawstring resistance mechanism for fitness equipment - Google Patents

Abstract

The cord-drawing resistance mechanism of the present invention comprises a drive unit, a stay cord and a braking unit. The driving unit has a motor and a reel connected to the motor. One end of the pull cord is connected to the reel so that the pull cord can be pulled by the reel and wound around the reel. The brake unit has a brake adjacent to the reel. When the brake is at the braking position, it abuts against the reel, so that the reel cannot rotate when the motor is turned off; when the brake is at the release position, it leaves the reel, so that the reel can be driven by the motor to rotate. In this way, the pull-cord type resistance mechanism of this invention can prevent the pull-cord from being easily pulled out after the motor is turned off.

Description

Drawstring resistance mechanism for fitness equipment

This creation is related to fitness equipment, in particular to a drawstring type resistance mechanism used for fitness equipment.

The traditional rope-drawing resistance mechanism mainly includes a motor, a reel connected to the motor, and a pull rope wound around the reel, and the motor drives the reel to rotate forward or reverse to achieve the purpose of pulling or releasing the pull rope , and then provide appropriate resistance to the user, so that the user can obtain the effect of exercise training.

However, the aforementioned pull-cord type resistance mechanism can still be easily pulled out by the user when the motor is not powered on. If the motor is started when the pull-cord is pulled out too much, the draw-cord is prone to entanglement during the retraction process. In the case of knotting, as a result, the user must spend time rearranging the drawstring, and even the drawstring may be entangled so that it cannot be untied, causing a malfunction.

The main purpose of this invention is to provide a pull-cord type resistance mechanism for fitness equipment, which can prevent the pull-cord from being pulled out when the motor is not powered on.

In order to achieve the above-mentioned main purpose, the cord-drawing resistance mechanism of the present invention comprises a drive unit, a stay cord and a braking unit. The drive unit has a motor and a reel connected to the motor; the pull cord is connected to the reel at one end so that the pull cord can be pulled by the reel and wound around the reel; the brake unit has A braking element, which is arranged adjacent to the reel and operates between a braking position and a release position relative to the reel, abuts the reel when the braking element is in the braking position, and when the braking element Not abutting the spool when in the release position.

It can be seen from the above that after the motor is turned off, the braking element is switched to the braking position, so that the reel cannot rotate under the action of the braking element, so that the pull cord can be prevented from being easily pulled out after the motor is turned off. When re-operating, first switch the brake to the release position, then start the motor, so that the motor drives the reel to pull or release the pull cord, so that the user can be provided with appropriate resistance. Thus, the user can obtain the effect of exercise training.

In the first embodiment of the invention, the reel is rotatably mounted on a motor seat. The brake unit further has a push rod, which is pivotally arranged on the motor seat and connected to the brake element with one end thereof, so that the brake element can be driven by the push rod to move in the braking position along the radial direction of the reel. and the releasing position, when the braking component is at the braking position, one end of the braking component abuts against the outer peripheral surface of the reel.

In the first embodiment of the present creation, one end of the brake member has a notch and a blocking wall adjacent to the notch, one end of the push rod is embedded in the notch, and one end of the push rod has a convex portion, when When the braking member is at the braking position, the protrusion of the push rod is located in the notch and presses against the blocking wall, so that the push rod produces a positioning effect.

In the first embodiment of the present invention, one end of the push rod further has a long slot adjacent to the protrusion, and one end of the braking member is connected to the push rod by a pin passing through the long slot. Thereby, the push rod drives the pin through the long slot, and then the pin drives the braking element to act.

In the first embodiment of the present invention, the brake unit further has a guide sleeve fixed on the motor base, the brake component can be displaceably passed through the guide sleeve, and the brake component is guided by the guide sleeve Effect.

In the second embodiment of the invention, the reel is rotatably mounted on a motor seat. The brake unit further includes a knob, a stud, a first brake plate, a second brake plate and at least two sliding columns. The knob is located outside the motor seat, one end of the stud is connected to the knob, the first brake plate is located outside the motor seat and screwed on the stud, the second brake plate is located in the motor seat, and the sliding posts The motor base is slidably passed through and connected to the first brake plate and the second brake plate, and the brake component is connected to the second brake plate with its outer surface. Thereby, when the knob is rotated, the first brake plate is driven to move along its axial direction through the stud, and then the first brake plate is driven to drive the second brake plate through the sliding posts, so that the second brake plate is driven synchronously The braking part, in this way, the braking part can move between the braking position and the release position along the axis of the reel, when the braking part is in the braking position, the inner side of the braking part is against Connect to the outer end of the reel.

In the second embodiment of the invention, one end of the reel is supported by an outer ring of a bearing, one end of the stud is connected with a shaft block, and the shaft block is passed through an inner ring of the bearing. Thereby, the knob drives the stud and the shaft block to rotate in situ when stressed.

In the third embodiment of the invention, the reel is rotatably mounted on a motor seat. The brake unit further includes a solenoid valve, a brake plate and at least two spools, the solenoid valve is located outside the motor seat, the brake plate is located in the motor seat, and the spools are slidably passed through the motor seat And connect the solenoid valve and the brake plate, the brake member is connected to one side of the brake plate facing the reel. In this way, the electromagnetic valve drives the spools to drive the brake plate, so that the brake plate synchronously drives the brake component, so that the brake component can be at the brake position and the release position along the axial direction of the reel. When the braking element is in the braking position, the braking element abuts against the outer end surface of the reel.

In the third embodiment of the invention, one end of the reel is supported by an outer ring of a bearing, an inner ring of the bearing is connected to one end of a shaft block, and the other end of the shaft block is rotatably arranged on the motor base .

The detailed structure, characteristics, assembly or usage of the cable-drawn resistance mechanism used in fitness equipment provided by this creation will be described in the subsequent detailed description of the implementation. However, those with ordinary knowledge in the field of this creation should be able to understand that these detailed descriptions and the specific embodiments listed for implementing this creation are only used to illustrate this creation, and are not used to limit the scope of patent applications for this creation.

The applicant hereby explains that in the entire specification, including the embodiments described below and the claims of the scope of the patent application, the nouns related to direction are based on the directions in the drawings. Secondly, in the embodiments and drawings to be described below, the same component numbers represent the same or similar components or their structural features.

Please refer to FIG. 1 and FIG. 2 , the drawstring type resistance mechanism 10 of the first embodiment of the present invention is suitable for fitness equipment (not shown in the figure), and it includes a drive unit 20 , a drawstring 30 and a braking unit 40 .

The driving unit 20 has a motor base 21 , a speed reducer 22 , a reel 23 and a motor 24 . Motor base 21 has a bottom plate 212, a front vertical plate 214, a rear vertical plate 216 and two support columns 218, the bottom side of the front vertical plate 214 and the bottom side of the rear vertical plate 216 are connected to the top surface of the bottom plate 212; Machine 22 is positioned at base plate 212 tops and is installed on the rear side of rear vertical plate 216; Reel 23 is located between front vertical plate 214 and rear vertical plate 216, and reel 23 front end is supported by a bearing 25 (as shown in Figure 3 ), the bearing 25 is sleeved on a shaft block 26 fixed on the front vertical plate 214, and the rear end of the reel 23 is connected to the reducer 22; the motor 24 is connected to the reducer 22 to provide a power source. In this way, when the motor 24 is started, the power output by the motor 24 is transmitted to the reel 23 through the reducer 22 , so that the reel 23 rotates forward or reversely.

One end of the stay cord 30 is for the user to grab, and the other end of the stay cord 30 is connected to the reel 23, so that the stay cord 30 can be pulled by the reel 23 and wound around the reel 23 on the one hand, and can be used by the user on the other hand. The pulling of the person is released from the reel 23, and drives the reel 23 to rotate during the release process.

As shown in FIGS. 1 and 2 , the brake unit 40 has a push rod 41 and a brake member 44 in this embodiment. The push rod 41 is pivotally arranged on a pivot block 47 with its middle part, and the pivot block 47 is fixed on one side of the front vertical plate 214. The push rod 41 has an operating end 42 and a driving end 43, wherein the driving end 43 has a convex portion 432 and a long groove 434 adjacent to the convex portion 432; the brake member 44 is a rod body in this embodiment and has a set of joint ends 45 and a brake end 46, wherein the assembly end 45 has A notch 452 and a retaining wall 454 adjacent to the notch 452, the assembly end 45 of the brake member 44 is embedded in the drive end 43 of the push rod 41 with the notch 452 on the one hand, and on the other hand is a hole that passes through the long slot 434. The pin 48 is connected to the driving end 43 of the push rod 41 . Thereby, the braking member 44 can be driven by the push rod 41 to move along the radial direction of the reel 23 between the braking position P1 shown in FIG. 3 and the release position P2 shown in FIG. 4 , when the braking member 44 When it is at the braking position P1, the brake member 44 is tightly pressed against the outer peripheral surface of the reel 23 with the brake end 46, so that the reel 23 cannot rotate arbitrarily when it is not driven by the motor 24, and in this case, the convex portion of the push rod 41 432 pushes against the retaining wall 454 of the braking member 44, so that the push rod 41 is positioned to avoid loosening due to improper external force; on the contrary, when the braking member 44 is at the release position P2, the braking end 46 of the braking member 44 is away from the outer circumference of the reel 23 surface, so that the reel 23 can be driven by the motor 24 to rotate. In addition, the brake component 44 is displaceably mounted on a guide sleeve 49, and the guide sleeve 49 is fixed on the rear side of the front vertical plate 214. The guide sleeve 49 provides a guiding effect on the brake component 44 to enhance the brake component 44 during operation. stability and smoothness.

It can be seen from the above that after the motor 24 is turned off, the brake member 44 is driven to the brake position P1 as shown in FIG. The motor 24 is easily pulled out after it is turned off. When the stay cord 30 is to be operated again, the brake member 44 is first driven to the release position P2 as shown in Figure 4 through the push rod 41, and then the motor 24 is started, so that the motor 24 drives the reel 23 to pull or pull the stay cord 30. release, so that appropriate resistance can be provided to the user, thereby allowing the user to obtain the effect of exercise training.

Please refer to FIG. 5 , the structure of the cable-drawing resistance mechanism 12 of the second embodiment of the present invention is substantially the same as that of the first embodiment above, and the main difference lies in the structure of the brake unit 50 . Furthermore, as shown in Figures 5 and 6, the brake unit 50 in this embodiment has a knob 51, a stud 52, a first brake plate 53, a second brake plate 54, and three sliding columns 55 And a braking member 56, wherein: the knob 51 is located outside the motor seat 21, one end of the stud 52 is connected to the knob 51, the other end of the stud 52 is connected to the shaft block 26, and the shaft block 26 is connected to an inner ring 252 of the bearing 25, One of the outer rings 254 of the bearing 25 is connected to the reel 23, so that when the stud 52 is driven by the knob 51, it will rotate in place together with the knob 51 through the connection between the shaft block 26 and the bearing 25; the first brake plate 53 is located outside the motor seat 21 and is screwed on the stud 52, so that the first brake plate 53 is driven by the stud 52 and moves forward and backward along the axial direction of the stud 52; the second brake plate 54 is located in the motor seat 21 and uses The sliding posts 55 pierced through the front vertical plate 214 are connected to the first brake plate 53 so that the two can act synchronously; the brake member 56 is a disk in this embodiment and is connected to the second brake plate 54 with its outer surface. Thereby, the knob 51 drives the first brake plate 53 to move along its axial direction through the stud 52 when turning, and then the first brake plate 53 drives the second brake plate 54 through the sliding posts 55, so that the second brake plate 54 is synchronized. Drive the brake member 56, so that the brake member 56 can move along the axial direction of the reel 23 between the brake position P1 shown in Figure 6 and the release position P2 shown in Figure 7, when the brake member 56 When it is at the brake position P1, the inner side of the brake member 56 abuts against the outer end surface of the reel 23, so that the reel 23 cannot rotate arbitrarily when it is not driven by the motor 24. When the brake member 56 is at the release position P2, the inner surface of the brake member 56 The inner surface is separated from the outer end surface of the reel 23 so that the reel 23 can be driven by the motor 24 to rotate.

It can be seen from the above that after the motor 24 is turned off, the brake member 56 is driven to the brake position P1 as shown in FIG. 24 is easily pulled out after closing. When operating the stay cord 30 again, the brake member 56 is retracted to the release position P2 as shown in FIG. , so that an appropriate resistance can be provided to the user, so that the user can obtain the effect of exercise training.

Please refer to FIG. 8 , the structure of the cable-drawing resistance mechanism 14 of the third embodiment of the present invention is substantially the same as that of the second embodiment above, and the main difference is that the structure of the brake unit 60 is different. Furthermore, as shown in Figures 8 and 9, the brake unit 60 in this embodiment has a solenoid valve 61, a brake plate 62, three spools 63 and a brake member 64, wherein: the solenoid valve 61 is located at the motor Outside the seat 21; the brake plate 62 is located in the motor seat 21 and is connected to the solenoid valve 61 by using the spools 63 pierced through the front vertical plate 214; the brake member 64 is a disc body in this embodiment and is connected to the brake with its outer surface Plate 62, and in this embodiment, one end of the shaft block 26 is rotatably passed through the front vertical plate 214, the other end of the shaft block 26 is connected to the inner ring 252 of the bearing 25, and the outer ring 254 of the bearing 25 is connected to As for the reel 23 , the reel 23 is supported by the bearing 25 . In this way, the solenoid valve 61 drives the spools 63 to drive the brake plate 62, so that the brake plate 62 synchronously drives the brake member 64. In this way, the brake member 64 can move along the axial direction of the reel 23 as shown in FIG. The braking position P1 and the release position P2 shown in Figure 10 are activated. When the braking member 64 is located at the braking position P1, the inner side of the braking member 64 abuts against the outer end surface of the reel 23, so that the reel 23 is unaffected. When the motor 24 is driven, it cannot rotate arbitrarily. When the braking member 64 is at the release position P2, the inner side of the braking member 64 is away from the outer end surface of the reel 23, so that the reel 23 can be driven by the motor 24 to rotate.

It can be seen from the above that after the motor 24 is turned off, the brake member 64 is driven to the brake position P1 as shown in FIG. The motor 24 is easily pulled out after it is turned off. When the stay cord 30 is to be operated again, the brake member 64 is retreated to the release position P2 as shown in Figure 10 through the electromagnetic valve 61, and then the motor 24 is started, so that the motor 24 drives the reel 23 to pull or pull the stay cord 30. release, so that appropriate resistance can be provided to the user, thereby allowing the user to obtain the effect of exercise training.

10: Drawstring resistance mechanism 12: Drawstring resistance mechanism 14: Drawstring resistance mechanism 20: Drive unit 21: Motor seat 212: bottom plate 214: front vertical plate 216: Rear vertical plate 218: support column 22: reducer 23: roll 24: motor 25: Bearing 252: inner ring 254: outer ring 26: Shaft block 30: drawstring 40:Brake unit 41: putter 42: Operation terminal 43: Drive end 432: convex part 434: long slot 44:Brake parts 45: group terminal 452: Gap 454: wall 46:Brake end 47: Pivot block 48:pin P1: brake position P2: release position 49: guide sleeve 50:Brake unit 51: Knob 52: stud 53: The first brake plate 54: Second brake plate 55: Sliding column 56:Brake parts 60:Brake unit 61:Solenoid valve 62:brake plate 63: Sliding column 64: Braking parts

Fig. 1 is the perspective view of the drawstring type resistance mechanism of the first embodiment of the present invention. Fig. 2 is a three-dimensional exploded view of the braking unit provided by the cable-drawing resistance mechanism of the first embodiment of the present invention. Fig. 3 is a top view of the pull-cord type resistance mechanism of the first embodiment of the present invention, mainly showing that the braking member is in the braking position. Fig. 4 is similar to Fig. 2, mainly showing that the braking member is in the release position. Fig. 5 is a three-dimensional view of the drawstring resistance mechanism of the second embodiment of the present invention. Fig. 6 is a cross-sectional view of the pull-cord type resistance mechanism of the second embodiment of the present invention, mainly showing that the braking member is in the braking position. Fig. 7 is similar to Fig. 6, mainly showing that the braking member is in the release position. Fig. 8 is a perspective view of the drawstring type resistance mechanism of the third embodiment of the present invention. Fig. 9 is a cross-sectional view of the cable-drawing resistance mechanism of the third embodiment of the present invention, mainly showing that the braking member is in the braking position. Fig. 10 is similar to Fig. 9, mainly showing that the braking member is in the release position.

10: Drawstring resistance mechanism

20: Drive unit

21: Motor seat

212: bottom plate

214: front vertical plate

216: Rear vertical plate

218: support column

22: Reducer

23: roll

24: motor

30: drawstring

40:Brake unit

41: putter

44:Brake parts

47: Pivot block

49: guide sleeve

Claims (9)

A cord-drawing resistance mechanism for fitness equipment, comprising: a drive unit with a motor and a reel connected to the motor; a stay cord wound around the drum and fixed at one end to the drum; and A braking unit has a braking member, which is arranged adjacent to the reel and can move between a braking position and a releasing position relative to the reel. When the braking member is at the braking position, the braking member is against connected to the reel, and when the brake member is at the release position, the brake member does not abut against the reel. The drawstring resistance mechanism for fitness equipment as described in claim 1, wherein the driving unit further has a motor base, and the reel is rotatably arranged on the motor base; the braking unit further has a push rod, The push rod is pivotally arranged on the motor seat and connected to the braking element at one end, so that the braking element can be driven by the push rod to move between the braking position and the release position along the radial direction of the reel, When the braking element is at the braking position, one end of the braking element abuts against the outer peripheral surface of the reel. The pull-rope resistance mechanism for fitness equipment as described in Claim 2, wherein one end of the braking member has a notch and a retaining wall adjacent to the notch, the push rod has a driving end, and the push rod has a The driving end is embedded in the notch, and the driving end of the push rod has a convex portion. When the brake member is at the braking position, the convex portion of the push rod abuts against the blocking wall. According to claim 3, the pull-cord type resistance mechanism for fitness equipment, wherein, the driving end of the push rod further has a long groove adjacent to the convex part, and one end of the brake part is passed through the A slotted pin connects the drive end of the push rod. The drawstring resistance mechanism for fitness equipment as described in any one of claims 2 to 4, wherein the brake unit further has a guide sleeve fixed on the motor seat, and the brake member can be displaceably passed through on the guide sleeve. The pull-cord type resistance mechanism for fitness equipment as described in claim 1, wherein, the driving unit further has a motor base, and the reel is rotatably arranged on the motor base; the braking unit further includes a knob, a Stud, a first brake plate, a second brake plate and at least two sliding columns, the knob is located outside the motor base, one end of the stud is connected to the knob, the first brake plate is located outside the motor base and screwed On the stud, the second brake plate is located in the motor seat, the at least two sliding posts are slidably passed through the motor seat and connected to the first brake plate and the second brake plate; the brake member is connected to the The second brake plate faces one side of the reel, so that the brake member can move between the brake position and the release position along the axial direction of the reel. When the brake member is at the brake position, the brake member abut against the outer end of the reel. The drawstring type resistance mechanism for fitness equipment as described in claim 6, wherein, one end of the reel is supported by an outer ring of a bearing, and one end of the stud is connected to a shaft block, and the shaft block passes through the One of the bearings is the inner ring. The drawstring resistance mechanism for fitness equipment as described in claim 1, wherein, the drive unit further has a motor seat, and the reel is rotatably arranged on the motor seat; the braking unit further includes a solenoid valve, A brake plate and at least two spools, the solenoid valve is located outside the motor seat, the brake plate is located in the motor seat, the at least two spools are slidably passed through the motor seat and connected to the solenoid valve and the brake plate; the brake member is connected to one side of the brake plate facing the reel, so that the brake member can move between the brake position and the release position along the axial direction of the reel, when the brake member is in the brake position , the braking member abuts against the outer end surface of the reel. The drawstring type resistance mechanism for fitness equipment as described in Claim 8, wherein, one end of the reel is supported by an outer ring of a bearing, and an inner ring of the bearing is connected to a rotatably arranged motor. The shaft block of the seat.

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