CN203915912U - elliptical machine - Google Patents

Abstract

The utility model discloses an elliptical machine, comprising a base, a first linkage mechanism and a second linkage mechanism respectively installed on both sides of the base, a transmission mechanism respectively connected to the first and second linkage mechanisms, and a first adjustment mechanism and a second adjustment mechanism respectively installed on the first and second linkage mechanisms. The linkage mechanism comprises a support rod, the rear end of which moves back and forth on the base; and a connecting rod group is connected to the front end of the support rod. The connecting rod group comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod which are pivotally connected to each other in sequence, one end of the first connecting rod is pivotally connected to the front end of the support rod, and one end of the fourth connecting rod is pivotally connected to the vertical rod. The two ends of the first adjustment mechanism and the second adjustment mechanism are respectively pivotally connected to the corresponding third connecting rod and the first connecting rod, so as to change the angle between the first connecting rod and the second connecting rod, thereby achieving the purpose of changing the pedal actuation stride.

Description

elliptical machine

technical field

The utility model relates to the technical field of sports equipment, in particular to an elliptical machine whose stride can be adjusted according to user requirements.

Background technique

Due to the fast pace of life and busy work, modern people are often neglected to exercise. However, after the leisure and health trend gradually rises, the concept of exercise and fitness is also rising. When most people talk about sports, they think of parks or school playgrounds. Although such outdoor venues have the inherent advantages of good air and good views, they are easily affected by the weather. Therefore, various sports have been developed by industry players. The fitness equipment is to provide busy modern people with the ability to grasp the fragmented time between work and achieve the purpose of exercise without going outdoors.

Among the many sports devices, the elliptical machine is favored by many consumers because it can simulate the movement trajectory of people's feet and legs when they walk. However, when the elliptical machine first came out, because it did not have a stride adjustment function, users could not adjust the movement track of the pedals of the elliptical machine according to their own height and body shape, resulting in a limited range of use. It causes the user to experience instability and discomfort during exercise, and even cause sports injuries.

Existing elliptical machines generally include: a base, which is erected on the ground, and a vertical rod is extended upwards from the front end of the base; Each linkage mechanism includes a pedal set, which can slide back and forth relative to the linkage mechanism; a transmission mechanism, which is arranged on the vertical rod and can link the pedal sets of each linkage mechanism to form a relative elliptical trajectory movement; and A left and a right adjusting member are respectively pivotally arranged on the upright rod, and can be used for changing the elliptical trajectory stroke of each pedal group. There are two ways to adjust the stroke: manual and electric, which are described below.

Manual adjustment: It mainly uses a connecting rod formed with at least two through holes and an adjustment group set on the connecting rod to provide adjustment functions. The adjusting group includes a sleeve set on the connecting rod and a set on the connecting rod. The positioning piece on the sleeve and can be used for reciprocating displacement; it mainly uses the positioning piece to spiral through the sleeve, and then inserts and positions it in different through holes to achieve the purpose of adjusting the stroke of the elliptical machine. Such a manual adjustment method can only be adjusted in stages according to the number of through holes, which cannot satisfy all users with different body shapes and heights. If finer adjustments are to be made, the number of through holes must be increased and the number of through holes must be increased. Reduce the distance between adjacent through holes, however, such an approach will seriously reduce the structural strength of the connecting rod and affect its structural safety.

Electric adjustment: It mainly uses the screw rod and a linear brake on the screw rod to achieve the purpose of electric stepless adjustment. However, as we all know, using the screw rod to achieve the purpose of linearly adjusting the position is undoubtedly to first make the screw rod rotate relative to the adjusted part. Although the elliptical machine has not stated in its manual, the detailed structure of the linear brake, however, for mechanical or elliptical machines. Anyone with ordinary knowledge in the technical field can know without any difference that linear brakes are nothing more than components such as servo motors or DC motors. However, the purchase costs of such components are quite high, and the industry will of course pass this cost on to consumers. Cause the market competitiveness of this type of elliptical machine to reduce relatively.

Utility model content

The main purpose of the utility model is to provide an elliptical machine.

In order to achieve the above object, the utility model adopts the following technical solutions:

An elliptical machine, comprising a base, a first linkage mechanism and a second linkage mechanism respectively installed on both sides of the base, a transmission mechanism respectively connected to the first and second linkage mechanisms, and respectively installed The first adjustment mechanism and the second adjustment mechanism on the first and second linkage mechanisms; the base is placed flat on a support surface, and its front end is extended upwards with a vertical rod; The moving mechanism is respectively installed on both sides of the vertical rod, and each linkage mechanism includes a support rod respectively. The rear end of each support rod moves reciprocatingly on the base when in motion, and the front end of the support rod is connected with a connecting rod. One end of the connecting rod group which is different from the supporting rod is pivoted on the vertical rod; the connecting rod group respectively has a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod which are pivotally connected to each other in sequence, One end of the first connecting rod is pivotally arranged on the front end of the supporting rod, and one end of the fourth connecting rod is pivotally connected on the vertical rod; a pedal is installed on each supporting rod; the transmission mechanism is connected between the first linkage mechanism and the second connecting rod. Two linking mechanisms to provide a grouping effect and improve movement efficiency; and the two ends of the first adjustment mechanism and the second adjustment mechanism are respectively pivotally connected to the corresponding third connecting rod and the first connecting rod, thereby steplessly changing The angle between the first connecting rod and the second connecting rod can further achieve the purpose of changing the pedal actuation stride.

By virtue of the innovative and unique structural design, compared with the prior art, the utility model can achieve the purpose of expanding the range of use of the elliptical machine and reducing the cost, thereby achieving practical progress and better industrial economic (utilization) benefits.

Description of drawings

Fig. 1 is a three-dimensional appearance view of the utility model.

Fig. 2 is the left side view of the utility model.

Fig. 3 is the right side view of the utility model.

Fig. 4 is a side view of adjusting the stride to the minimum by the adjustment member of the present invention.

Fig. 5 is a partially enlarged view of Fig. 4 .

Fig. 6 is a schematic diagram of the trajectory of the minimum stride of the present invention.

Fig. 7 is a side view of adjusting the stride to the maximum by the adjusting member of the present invention.

FIG. 8 is a partially enlarged view of FIG. 7 .

Fig. 9 is a schematic diagram of the trajectory of the maximum stride of the present invention.

Detailed ways

As shown in Figures 1-3, preferred embodiments of the elliptical machine of the present invention, but these embodiments are for illustration only, and are not limited by this structure in patent applications.

The elliptical machine includes a base 10, a first linkage mechanism 20A and a second linkage mechanism 20B installed on both sides of the base 10, and a linkage mechanism respectively connected to the first and second linkage mechanisms 20A and 20B. The transmission mechanism 30 and the first adjustment mechanism 40A and the second adjustment mechanism 40B respectively installed on the first and second linkage mechanisms 20A and 20B.

The base 10 is placed on a supporting surface (floor), the rear end of the base 10 is provided with a horizontally extending slide rail 11, and its front end is upwardly provided with a vertical rod 12, and a vertical rod 12 is also extended on the vertical rod 12. Connecting rod 121.

The first linkage mechanism 20A and the second linkage mechanism 20B are installed on both sides of the vertical rod 12 respectively. The first and second linkage mechanisms 20A and 20B respectively include a support rod 21, and the rear ends of each support rod 21 are used as When moving, do reciprocating movement on the corresponding slide rail 11, the front end of each support rod 21 is connected with a link group 22, and the end of the link group 22 that is different from the support rod 21 is pivotally arranged on the vertical rod 12. Each connecting rod group 22 respectively has a first connecting rod 221, a second connecting rod 222, a third connecting rod 223 and a fourth connecting rod 224 which are pivotally connected to each other in sequence, wherein one end of the first connecting rod 221 is pivotally arranged on the support The front end of the rod 21 and one end of the fourth connecting rod 224 are pivotally connected to the connecting rod 121 of the vertical rod 12; The front end of the front end is pivotally connected with a swing arm 25 for the user to hold and swing, and the two swing arms 25 are pivotally connected to both sides of the upright bar 12 .

The linkage mechanism 30 includes a belt pulley 31 which is screwed on the vertical rod 12 and a counterweight flywheel 32 which is screwed on the base 10. In a preferred embodiment of the present utility model, the belt pulley 31 and the counterweight flywheel 32 are two A belt (not labeled) is used as a medium for synchronous action and damping. A crank 33 is respectively installed on both sides of the center of the pulley 31, and the two cranks 32 are in a straight line and are respectively screwed on the pivot joints of the second connecting rod 222 and the third connecting rod 223 to link the first and second linkage mechanisms 20A, 20A, The pedal 23 of 20B forms an elliptical motion locus.

The first adjustment mechanism 40A and the second adjustment mechanism 40B are installed on the first linkage mechanism 20A and the second linkage mechanism 20B respectively, and the two ends of the first adjustment mechanism 40A and the second adjustment mechanism 40B are pivotally connected to the corresponding second linkage mechanism respectively. The three connecting rods 223 are connected to the first connecting rod 221 so as to change the angle between the first connecting rod 221 and the second connecting rod 222 , thereby achieving the purpose of changing the actuating stride of the pedal 23 . The first adjustment mechanism 40A and the second adjustment mechanism 40B respectively have a top support rod 41 that is axially disposed on the corresponding first connecting rod 221 . The structural form of the top strut 41 has different implementation styles depending on the design of the adjustment mode of the utility model. If the utility model is designed as a manual adjustment mode, the top strut 41 is a screw rod. If the utility model is designed as In the electric adjustment mode, the top support rod 41 is a piston rod of a cylinder, and the first adjustment mechanism 40A and the second adjustment mechanism 40B are respectively electrically connected to the control unit 50 of the elliptical machine.

Through the design of the above structure, the operation of the utility model is described as follows: As shown in Figure 4-6, when the top support rod 41 is completely retracted to the shortest, the first connecting rod 221 and the second connecting rod The included angle θ1 formed by 222 has the smallest angle, at this time, the major axis (L1) of the elliptical trajectory of pedal 23 motion is the smallest, which can be applied to users with smaller height and stature; and as shown in Figure 7-9, when When the top strut 41 is fully extended outwards to the longest, the angle θ2 formed by the first connecting rod 221 and the second connecting rod 222 is the largest. At this time, the major axis (L2) of the elliptical trajectory of the pedal 23 movement is the largest, which can Suitable for taller and larger users.

Efficacy Description:

The elliptical machine of the utility model mainly uses the first linkage mechanism and the second linkage mechanism corresponding to each other on both sides of the vertical rod, and the first and second linkage mechanisms are respectively pivotally connected to the crank and the first and second adjustment mechanisms, and then the second linkage mechanism is used. The first and second adjustment mechanisms are provided with axially reciprocating top struts to change the actuation angles of the first and second linkage mechanisms, thereby achieving the purpose of adjusting the stride length of the pedals. The aforementioned two embodiments of the top support rod of the utility model are respectively the screw rod and the piston rod of the cylinder, which can not only achieve the purpose of stepless adjustment, but also reduce the lack of high cost of the adjustment structure of the elliptical machine. To sum up, the innovative and unique structural form and technical features of the present utility model make the present utility model indeed a novel and progressive structural design compared with the aforementioned existing structures.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (5)

1. An elliptical machine, characterized in that it comprises: a base, a first linkage mechanism and a second linkage mechanism installed on both sides of the base respectively, a linkage mechanism respectively connected to the first and second linkage mechanisms The transmission mechanism and the first adjustment mechanism and the second adjustment mechanism respectively installed on the first and second linkage mechanisms; wherein: The base is to be placed flat on a supporting surface, and a vertical rod is extended upwards from the front end thereof; The first linkage mechanism and the second linkage mechanism are respectively installed on both sides of the vertical rod. The first and second linkage mechanisms respectively include a support rod. The rear end of the support rod moves reciprocatingly on the base to support The front end of the rod is connected with a connecting rod group, and one end of the connecting rod group is pivotally arranged on the vertical rod; the connecting rod group respectively has a first connecting rod, a second connecting rod, a third connecting rod and the fourth connecting rod, wherein one end of the first connecting rod is pivotally arranged on the front end of the supporting rod, and one end of the fourth connecting rod is pivotally connected on the vertical rod; a pedal is installed on the supporting rod, and the bottom of each pedal is A connecting rod is pivotally connected, and the front end of the connecting rod is pivotally connected with a swing arm for the user to hold and swing, and the two swing arms are pivotally connected to both sides of the vertical rod; The transmission mechanism is connected to the first linkage mechanism and the second linkage mechanism; The two ends of the first adjustment mechanism and the second adjustment mechanism are respectively pivotally connected to the corresponding third link and the first link, so as to change the angle between the first link and the second link, thereby changing the pedal actuation The purpose of the stride. 2 . The elliptical machine as claimed in claim 1 , wherein the first adjustment mechanism and the second adjustment mechanism each have a top support rod with a shaft disposed on a corresponding first connecting rod. 3 . 3. The elliptical machine according to claim 2, wherein the top support rod is a piston rod of a cylinder, and the first adjustment mechanism and the second adjustment mechanism are respectively electrically connected to a control device installed on the elliptical machine. unit. 4. The elliptical machine according to claim 2, wherein the top strut is a screw. 5. The elliptical machine as claimed in claim 1, 2, 3 or 4, wherein the interlocking mechanism comprises a belt pulley which is screwed on the vertical pole and a counterweight flywheel which is screwed on the base, and the belt pulley and A belt acts synchronously between the two counterweight flywheels; a crank is respectively installed on both sides of the center of the pulley, and the two cranks are linearly corresponding and respectively screwed on the pivot joints of the second connecting rod and the third connecting rod.