Wearable device to assist obese people in exercising to lose weight

Abstract

The utility model discloses a kind of wearable equipment for assisting obese person to exercise weight loss, including wearable vest, impedance exercise arm and elastic band;Impedance exercise arm includes big arm, intermediate arm and end arm, one end of big arm is connected on wearable vest, and around first vertical axis pivotable and around horizontal axis pivotable, one end of intermediate arm is connected with the other end of big arm and around second vertical axis pivotable, end arm is connected with the other end of intermediate arm and along third vertical axis pivotable;Big arm, intermediate arm and end arm are equipped with the fixing band for being fixed to the upper limbs of user;Elastic band extends along the width direction of wearable vest, and elastic band is detachably arranged on wearable vest and / or impedance exercise arm, to provide exercise resistance when impedance exercise arm executes training action.The utility model realizes multi-joint, multi-degree-of-freedom combination initiative to exert exercise resistance, provides a kind of safe, flexible and efficient exercise assisting mode for obese person.

Description

Technical Field

[0001] This utility model relates to sports training auxiliary equipment, and more particularly to a wearable device that assists obese people in exercising to lose weight. Background Technology

[0002] Studies have shown that insufficient exercise directly leads to a surge in obesity rates. The strong correlation between BMI and WHtR and metabolic diseases such as hypertension has been widely verified, and exercise intervention is an effective means of controlling obesity.

[0003] Some wearable devices used in sports, such as smart bracelets, focus primarily on monitoring physiological parameters and collecting exercise data, providing health feedback through mobile terminals, but lack active intervention mechanisms. While some wearable devices are used in rehabilitation medicine, such as hand function training devices for hemiplegic patients, there are no active intervention devices specifically designed for obese individuals, especially elderly obese individuals. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the purpose of this invention is to provide a wearable device to assist obese individuals in exercising and losing weight.

[0005] To achieve the above objectives, a wearable device for assisting obese individuals in exercising and losing weight, according to an embodiment of the present invention, includes:

[0006] A wearable vest having cuffs;

[0007] An impedance motion arm includes an upper arm, a middle arm, and an end arm. One end of the upper arm is connected to the wearable vest near the cuff and is pivotable about a first vertical axis and about a horizontal axis to form a first joint. One end of the middle arm is connected to the other end of the upper arm and is pivotable about a second vertical axis to form a second joint. The end arm is connected to the other end of the middle arm and is pivotable along a third vertical axis to form a third joint. The upper arm, middle arm, and end arm are provided with fixing straps for securing to the user's upper limb.

[0008] An elastic band extends along the width of the wearable vest and is detachably mounted on the wearable vest and / or the resistance arm to provide resistance when the resistance arm performs training movements.

[0009] The wearable device for assisting obese individuals in exercise and weight loss, according to embodiments of this utility model, can provide active exercise intervention for obese individuals (especially elderly obese individuals). Through the resistance movement arms and elastic bands on the wearable vest, multi-degree-of-freedom exercise training of the upper limbs is achieved, thereby promoting metabolism and calorie consumption. The resistance movement arms consist of an upper arm, a middle arm, and an end arm, and by incorporating multiple joints, they can rotate in multiple axes, flexibly adapting to the user's exercise needs; the elastic bands provide resistance during exercise, effectively enhancing the exercise effect. This device not only compensates for the shortcomings of existing smart wearable devices in active intervention training, but also provides obese individuals with a safe, flexible, and efficient exercise assistance method by combining multiple joints and multiple degrees of freedom to actively apply exercise resistance.

[0010] In addition, the wearable device for assisting obese individuals in exercise and weight loss according to the above embodiments of this utility model may also have the following additional technical features:

[0011] According to one embodiment of the present invention, there are two impedance motion arms, which are symmetrically arranged on the wearable vest for exercising the two upper limbs respectively.

[0012] According to one embodiment of the present invention, a breathing detection device is provided on the wearable vest near the neckline for detecting the user's breathing data.

[0013] According to one embodiment of the present invention, the back of the wearable vest is further provided with a counterweight device, the height of which is lower than the height of the resistance movement arm and is located in the center of the width direction of the wearable vest.

[0014] According to one embodiment of the present invention, the back of the wearable vest is provided with a first positioning post, and the upper arm, the middle arm and the end wall are respectively provided with a second positioning post;

[0015] The elastic band is provided with a first positioning hole and a plurality of second positioning holes. The first positioning hole is located in the middle of the elastic band, and the plurality of second positioning holes are provided on both sides of the first positioning hole and are spaced apart along the length of the elastic band.

[0016] The first positioning hole is sleeved on the first positioning post, and a plurality of second positioning posts correspond one-to-one with a plurality of second positioning holes, with each second positioning hole sleeved on the corresponding second positioning post.

[0017] According to one embodiment of the present invention, the wearable vest is provided with a rotating component, the rotating component including a fixed base and a rotating disk disposed on the fixed base and pivotable about the horizontal axis;

[0018] The rotating disk is provided with a first rotating shaft extending around a first vertical axis, and one end of the large arm is pivotally connected to the first rotating shaft.

[0019] According to one embodiment of the present invention, the upper arm and / or intermediate arm is a telescopic structure so that the length of the upper arm or intermediate arm is adjustable.

[0020] According to one embodiment of the present invention, the upper arm includes a first double arm and a second double arm, one end of the first double arm is pivotally connected to the first rotating shaft, and one end of the second double arm is slidably sleeved with the other end of the first double arm.

[0021] According to one embodiment of the present invention, the intermediate arm includes a first single arm and a second single arm, one end of the first single arm is pivotally connected to the other end of the second double arm via a second pivot, and one end of the second single arm is slidably sleeved with the other end of the first single arm.

[0022] According to one embodiment of the present invention, the end arm includes a third double arm and a grip handle. One end of the third double arm is pivotally connected to the other end of the second single arm via a third pivot. The grip handle is located at the other end of the third double arm for the user to grip.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the back of a wearable device that assists obese individuals in exercising and losing weight, according to an embodiment of this utility model.

[0026] Figure 2 This is a top view of a wearable device (containing only a single impedance movement arm) that assists obese people in exercising to lose weight according to an embodiment of this utility model.

[0027] Figure label:

[0028] 10. Wearable vest;

[0029] 11. Rotating parts;

[0030] 111. Fixture;

[0031] 112. Rotating disk;

[0032] 12. First positioning post;

[0033] 13. Counterweight device;

[0034] 14. Breathing detection device;

[0035] 20. Resistance motion arm;

[0036] 201. Upper arm;

[0037] 201a, First double outrigger;

[0038] 201b, Second Double Arm;

[0039] 201c, First Shaft;

[0040] 202. Intermediate arm;

[0041] 202a, First Single Arm;

[0042] 202b, Second Single Arm;

[0043] 202c, Second pivot;

[0044] 203. End arm;

[0045] 203a, Third double outrigger;

[0046] 203b. Grip handle;

[0047] 204. Second positioning post;

[0048] 21. Fixing strap;

[0049] 30. Elastic band;

[0050] H301, First positioning hole;

[0051] H302, second positioning hole.

[0052] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0058] The following describes in detail, with reference to the accompanying drawings, a wearable device for assisting obese individuals in exercising and losing weight according to an embodiment of the present invention.

[0059] Reference Figures 1 to 2 As shown, the wearable device for assisting obese people in exercising and losing weight according to the embodiments of this utility model includes a wearable vest 10, an impedance exercise arm 20, and an elastic band 30.

[0060] Specifically, the wearable vest 10 can be worn on the user's upper body. The wearable vest 10 has cuffs, allowing the user to extend their arms. Preferably, the wearable vest 10 can be made of polyamide fiber material, which has high toughness and strength to facilitate the connection and installation of the resistance motion arm 20, while ensuring greater reliability and a longer service life during use. In this application, wearing the wearable vest 10 is not only convenient and simple, but also ensures that the device remains stable and comfortable during exercise.

[0061] The impedance motion arm 20 includes an upper arm 201, an intermediate arm 202, and an end arm 203. The upper arm 201, intermediate arm 202, and end arm 203 can be made of aluminum alloy, which provides high structural strength while being lighter and more convenient to use. One end of the upper arm 201 is connected to the wearable vest 10 near the cuff and is pivotable about a first vertical axis and a horizontal axis to form a first joint. This allows the upper arm 201 to pivot around both the first vertical and horizontal axes, thus providing a large range of motion to adapt to different movement postures. For example, it can accommodate 30° to 90° abduction and adduction movements and 90° to 180° horizontal abduction and adduction movements of the glenohumeral joint.

[0062] One end of the intermediate arm 202 is connected to the other end of the upper arm 201 and is pivotable about a second vertical axis to form a second joint. This second joint allows for elbow joint movement, for example, flexion and extension movements from 0° to 90°. The end arm 203 is connected to the other end of the intermediate arm 202 and is pivotable along a third vertical axis to form a third joint. This third joint allows for wrist joint movement, for example, flexion and extension movements from 0° to 90°.

[0063] The upper arm 201, intermediate arm 202, and distal arm 203 are equipped with fixing straps 21 for securing to the user's upper limb. Before use, the wearable vest 10 is worn on the user's upper body, and then the fixing straps 21 on the upper arm 201, intermediate arm 202, and distal arm 203 are fastened to the user's arm, thereby fixing the resistance motion arm 20 to the user's arm and ensuring that the device will not shift due to movement during use. Meanwhile, the fixing straps 21 can be made of flexible fabric for better comfort.

[0064] An elastic band 30 extends along the width of the wearable vest 10 and is detachably mounted on the wearable vest 10 and / or the resistance arm 20 to provide resistance when the resistance arm 20 performs training movements. The function of the elastic band 30 is to provide appropriate resistance when the resistance arm 20 performs various training movements, thereby effectively increasing the load on the upper limb muscles and promoting metabolism and calorie consumption.

[0065] The wearable device for assisting obese individuals in exercise and weight loss, as provided in this embodiment of the invention, can provide active exercise intervention for obese individuals (especially elderly obese individuals). Through the resistance movement arm 20 and elastic band 30 on the wearable vest 10, multi-degree-of-freedom exercise training of the upper limbs is achieved, thereby promoting metabolism and calorie consumption. The resistance movement arm 20 consists of an upper arm 201, an intermediate arm 202, and an end arm 203. By incorporating multiple joints, it can rotate in multiple axes, flexibly adapting to the user's exercise needs. The elastic band 30 provides resistance during exercise, effectively enhancing the exercise effect. This device not only compensates for the shortcomings of existing smart wearable devices in active intervention training but also provides a safe, flexible, and efficient exercise assistance method for obese individuals by combining multiple joints and multiple degrees of freedom to actively apply exercise resistance.

[0066] In one embodiment of this utility model, there are two impedance motion arms 20, which are symmetrically arranged on the wearable vest 10 for exercising the two upper limbs respectively.

[0067] In this embodiment, two symmetrically arranged resistance movement arms 20 are used to achieve the purpose of simultaneously training the user's left and right upper limbs. This not only meets the physiological need for symmetrical upper limb movement, but also, through the resistance and symmetry of the elastic band 30, ensures balanced force on both sides, resulting in better training effects and greater safety.

[0068] In one embodiment of this invention, a breathing detection device 14 is provided on the wearable vest 10 near the neckline for detecting the user's breathing data. This breathing detection device 14 can be any portable breathing detector commonly found in the prior art.

[0069] By placing a breathing detection device 14 near the neckline of the wearable vest 10, the user's breathing data can be monitored in real time, enabling effective monitoring of parameters such as breathing frequency and depth. On one hand, by monitoring the user's breathing data, data support is provided for the health management of obese individuals, facilitating status assessment based on breathing data. On the other hand, during exercise, users can coordinate their rhythmic exercise with breathing data, further enhancing the effectiveness of exercise training.

[0070] In some embodiments of this invention, the wearable vest 10 is further provided with a counterweight device 13 on its back. The height of the counterweight device 13 is lower than the height of the impedance movement arm 20 and is located in the center of the width direction of the wearable vest 10. The counterweight device 13 may include a bag or similar structure filled with adjustable weights.

[0071] The aforementioned counterweight device 13 ensures that the center of gravity of the equipment is positioned in the middle, and the user's center of gravity is also in a central and low position. This effectively lowers the overall center of gravity of both the equipment and the user, optimizes weight distribution, and thus improves balance and stability during exercise, further enhancing the safety and comfort of sports training.

[0072] In one embodiment of the present invention, the back of the wearable vest 10 is provided with a first positioning post 12, and the upper arm 201, the middle arm 202 and the end wall are respectively provided with a second positioning post 204.

[0073] The elastic band 30 is provided with a first positioning hole H301 and a plurality of second positioning holes H302. The first positioning hole H301 is located in the middle of the elastic band 30, and the plurality of second positioning holes H302 are provided on both sides of the first positioning hole H301 and are spaced apart along the length of the elastic band 30.

[0074] The first positioning hole H301 is sleeved on the first positioning post 12, and the multiple second positioning posts 204 correspond one-to-one with the multiple second positioning holes H302, with each second positioning hole H302 sleeved on the corresponding second positioning post 204.

[0075] By setting a first positioning post 12 and a second positioning post 204 on the wearable vest 10 and the exercise arm, and arranging a first positioning hole H301 and multiple second positioning holes H302 on the elastic band 30, the elastic band 30 can be quickly installed and removed. This structure not only ensures the stable positioning of the elastic band 30 during exercise and effectively transmits resistance, but also facilitates the replacement of the elastic band 30. Different resistance elastic bands 30 can be selected and replaced as needed, thereby meeting the needs of different individuals and different training stages. This significantly improves the flexibility and reliability of use, further enhancing the auxiliary effect of the device on exercise training for obese individuals.

[0076] In one embodiment of this utility model, a wearable vest 10 is provided with a rotating component 11, which includes a fixed base 111 and a rotating disk 112. The fixed base 111 is fixedly installed on the surface of the wearable vest 10, and the rotating disk 112 is mounted on the fixed base 111 and can pivot about the horizontal axis, thereby allowing the resistance motion arm 20 to flexibly adapt to different movement postures during the user's movement. The rotating disk 112 is provided with a first rotating shaft 201c extending about a first vertical axis, and one end of the upper arm 201 is pivotally connected to the first rotating shaft 201c.

[0077] In other words, by rotating the rotary disk 112 around the horizontal axis and the first rotating shaft 201c around the first vertical axis, the upper arm 201 achieves two degrees of freedom of rotation, making the arm more stable and precise when performing multi-directional operations such as abduction and retraction, thus improving its range of motion and flexibility. Furthermore, while ensuring smooth and stable rotation, this structure also meets the device's requirements for resistance to motion impacts and vibrations, as well as its durability for long-term use, thereby further enhancing the wearable device's motion assistance performance and safety.

[0078] In one embodiment of the present invention, the upper arm 201 and / or the intermediate arm 202 are telescopic structures so that the length of the upper arm 201 or the intermediate arm 202 is adjustable.

[0079] By employing a telescopic structure with an upper arm 201 and / or an intermediate arm 202, the length of the impedance motion arm 20 is flexibly adjustable, adapting to the body shape needs of different users. Furthermore, it adapts to the length of each joint during use, thereby improving the adaptability of the impedance motion arm 20. Simultaneously, this structure enhances the stability and safety of the impedance motion arm 20 during use, preventing problems such as jamming, while ensuring smooth adjustment and secure fixation.

[0080] In one embodiment of the present invention, the upper arm 201 includes a first double arm 201a and a second double arm 201b. One end of the first double arm 201a is pivotally connected to the first rotating shaft 201c, and one end of the second double arm 201b is slidably sleeved with the other end of the first double arm 201a.

[0081] The intermediate arm 202 includes a first single arm 202a and a second single arm 202b. One end of the first single arm 202a is pivotally connected to the other end of the second double arm 201b via a second rotating shaft 202c. One end of the second single arm 202b is slidably sleeved with the other end of the first single arm 202a.

[0082] In this embodiment, the upper arm 201 includes a first double arm 201a and a second double arm 201b. The second double arm 201b and the first double arm 201a are connected by a sliding sleeve structure. The second double arm 201b can slide and extend relative to the first double arm 201a. In this way, the length of the upper arm 201 can be adaptively adjusted according to the user's movement needs.

[0083] The intermediate arm 202 includes a first single arm 202a and a second single arm 202b. The first single arm 202a is pivotally connected to the second double arm 201b via a second pivot 202c, allowing the intermediate arm 202 to rotate freely. Meanwhile, the second single arm 202b is connected to the first single arm 202a via a sliding sleeve structure, allowing the second single arm 202b to slide and extend relative to the first single arm 202a. This ensures that the intermediate arm 202 can freely adapt to adjustments at different angles and positions during movement, providing a more natural and smooth range of motion.

[0084] Through the above structural design, the upper arm 201 and the intermediate arm 202 can not only achieve a flexible pivotal connection, but also be adjusted in real time during movement through sliding sleeve extension and retraction to meet the needs of different users and movement postures for adjusting the arm length and angle. In addition, its structure is simple and its movement is stable and reliable.

[0085] In one embodiment of the present invention, the end arm 203 includes a third double arm 203a and a grip handle 203b. One end of the third double arm 203a is pivotally connected to the other end of the second single arm 202b via a third pivot. The grip handle 203b is provided at the other end of the third double arm 203a for the user to grip.

[0086] During use, the user can hold the grip handle 203b at the end of the impedance exercise arm 20 and then perform training movements. During the movements, the impedance exercise arm 20 will move.

[0087] In this embodiment, the end arm 203 adopts a structure consisting of a third double support arm 203a and a grip handle 203b, which not only provides a stable and flexible pivot connection, ensuring that the end arm 203 can perform training movements flexibly and reliably, but also provides users with a comfortable, safe and reliable grip operation by adopting the grip handle 203b, thereby improving the practicality and exercise effect of the device in assisted sports training.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0089] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A wearable device to assist obese individuals in exercising and losing weight, characterized in that, include: A wearable vest having cuffs; An impedance motion arm includes an upper arm, a middle arm, and an end arm. One end of the upper arm is connected to the wearable vest near the cuff and is pivotable about a first vertical axis and about a horizontal axis to form a first joint. One end of the middle arm is connected to the other end of the upper arm and is pivotable about a second vertical axis to form a second joint. The end arm is connected to the other end of the middle arm and is pivotable along a third vertical axis to form a third joint. The upper arm, middle arm, and end arm are provided with fixing straps for securing to the user's upper limb. An elastic band extends along the width of the wearable vest and is detachably mounted on the wearable vest and / or the resistance arm to provide resistance when the resistance arm performs training movements.

2. The wearable device for assisting obese individuals in exercise and weight loss according to claim 1, characterized in that, There are two impedance motion arms, which are symmetrically arranged on the wearable vest to perform exercise training on the two upper limbs respectively.

3. The wearable device for assisting obese individuals in exercise and weight loss according to claim 1, characterized in that, The wearable vest is equipped with a breathing detection device near the neckline to detect the user's breathing data.

4. The wearable device for assisting obese individuals in weight loss through exercise according to claim 1, characterized in that, The wearable vest is also equipped with a counterweight device on the back. The height of the counterweight device is lower than the height of the resistance movement arm and is located in the center of the width direction of the wearable vest.

5. The wearable device for assisting obese individuals in exercise and weight loss according to claim 1, characterized in that, The wearable vest has a first positioning post on its back, and second positioning posts are respectively provided on the upper arm, middle arm and end wall; The elastic band is provided with a first positioning hole and a plurality of second positioning holes. The first positioning hole is located in the middle of the elastic band, and the plurality of second positioning holes are provided on both sides of the first positioning hole and are spaced apart along the length of the elastic band. The first positioning hole is fitted onto the first positioning post, and a plurality of second positioning posts correspond one-to-one with a plurality of second positioning holes, with each second positioning hole fitted onto the corresponding second positioning post.

6. The wearable device for assisting obese individuals in exercise and weight loss according to claim 1, characterized in that, The wearable vest is provided with a rotating component, which includes a fixed base and a rotating disk that can pivot about the horizontal axis on the fixed base; The rotating disk is provided with a first rotating shaft extending around a first vertical axis, and one end of the large arm is pivotally connected to the first rotating shaft.

7. The wearable device for assisting obese individuals in weight loss through exercise according to claim 1, characterized in that, The upper arm and / or intermediate arm are telescopic structures, so that the length of the upper arm or intermediate arm is adjustable.

8. The wearable device for assisting obese individuals in exercise and weight loss according to claim 6, characterized in that, The upper arm includes a first double arm and a second double arm. One end of the first double arm is pivotally connected to the first rotating shaft, and one end of the second double arm is slidably sleeved with the other end of the first double arm.

9. The wearable device for assisting obese individuals in weight loss through exercise according to claim 8, characterized in that, The intermediate arm includes a first single arm and a second single arm. One end of the first single arm is pivotally connected to the other end of the second double arm via a second pivot. One end of the second single arm is slidably sleeved with the other end of the first single arm.

10. The wearable device for assisting obese individuals in exercise and weight loss according to claim 9, characterized in that, The end arm includes a third double arm and a grip handle. One end of the third double arm is pivotally connected to the other end of the second single arm via a third pivot. The grip handle is located at the other end of the third double arm for the user to grip.

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