200416057 玖、發明說明： (一） 發明所屬之技術領域 本發明涉及一種用於健身器械的阻力總成。 (二） 先前技術 健身器械使用例如配重、配重板、彈性帶、彈簧和類似 物來提供使用者可以用來健身的阻力。已經發現在許多這 些器械中根據情況作爲使用者克服阻力運動其手臂或腿的 距離的行程長度必須合理的長，並因此健身器械的尺寸必 須很大。 最好是使用者在該行程長度上經受大致恒定的阻力。如 果使用彈簧或其類同部件來提供該阻力，如公知，彈簧的 特性是其阻力隨彈簧變形或多或少線性地增加。換言之， 該阻力裝置運動越大，抵抗使用者運動的阻力越大。這當 然不是所需的性能。 如果使用一個或多個配重來提供阻力，在行程長度上可 以獲得大致恒定的阻力。當身體強健的使用者使用健身器 械時，必須提供的配重的數量是可觀的，並且所伴隨的缺 點是健身器械不容易運輸’並且不可避免的是健身器械非 常苯重並輸送給消費者的成本很高。 另一個因素是作爲當能量通過使用者輸入健身器械時通 過該阻力裝置顯示出來的阻力的正阻力應該儘可能與儲存 在該健身器械中的能量在返回行程上釋放時造成的負阻力 相同。如果摩擦和類似的損失最小化，這些力只可以至少 在某些程度上相互匹配。 -5 - 200416057 特別對於針對家庭使用者的裝置，可以相對方便的方式 調整由健身器械顯示的阻力。如所述，該健身器械應該緊 湊並重量輕，使其適合運輸和儲藏。還希望能夠以至少兩 種模式使用該器械，即通過向下拉動可以是例如手柄、# 、踝套或腕套或類似物的致動裝置克服阻力，或者通過向 上拉動致動裝置克服阻力。這些模式只通過實例給出，使 得該健身器械可構造成提供克服例如使用者的推動或_ _ 的任何類型運動的阻力。 (三）發明內容 本發明提供一種用於健身器械的阻力總成，該健身器_ 包括具有第一截面面積的細長的第一缸，使用時用氣_ _ 壓的第·一缸的內部，帶有第一端部和第二端部的細長構# ，該細長構件部分延伸到該第一缸內，其中該第一端部{立 於該第一缸的內部，第二端部位於該第二缸的外部，該紐( 長構件安裝成在其縱向相對於該第一缸進行往復運動，_ 中該細長構件在運動進入該第一缸內部的距離爲〖時，所 移動氣體的容積由表達式〖xa給出，其中a是小於第〜橫 截面面積的第二橫截面面積，在從位於細長構件上的該第 一缸外部的位置和該第一缸上位置中所選擇的位置處的構 造用於連接到致動裝置上由此使用者可造成該細長構件相 對於該第一缸的運動。 該阻力總成可包括通過氣體加壓該第一缸內部的設備。 在一個實施例中，該細長構件是帶有中空內部的管件， 該第一端邰開口並與該第一缸的內部連通，並且該第二端 -6- 200416057 部密封。 最好是該中空內部的橫截面面積等於該第二橫截面面積° 在本發明的第二形式中’該細長構件具有等於該第二橫 截面面積的橫截面面積。 在本發明的該形式中’該細長構件可以是實體的’或者 如果是管件’其內端部是密封的。200416057 (1) Description of the invention: (1) Technical field to which the invention belongs The present invention relates to a resistance assembly for fitness equipment. (Ii) Prior Art Fitness equipment uses, for example, weights, weight plates, elastic bands, springs, and the like to provide resistance that users can use to exercise. It has been found in many of these devices that the stroke length as the distance over which the user moves their arms or legs to overcome resistance must be reasonably long, and therefore the size of the exercise machine must be large. Preferably, the user experiences substantially constant resistance over the length of the stroke. If a spring or similar is used to provide this resistance, as is well known, the characteristic of the spring is that its resistance increases more or less linearly as the spring deforms. In other words, the greater the movement of the resistance device, the greater the resistance against the movement of the user. This is certainly not the required performance. If one or more counterweights are used to provide resistance, approximately constant resistance is obtained over the length of the stroke. When a physically fit user uses a fitness machine, the number of weights that must be provided is considerable, and the attendant disadvantage is that the fitness machine is not easy to transport 'and it is inevitable that the fitness machine is very heavy and delivered to consumers High cost. Another factor is that the positive resistance, which is the resistance displayed by the resistance device when energy is input by the user to the exercise machine, should be as much as possible the negative resistance caused when the energy stored in the exercise machine is released on the return stroke. If friction and similar losses are minimized, these forces can only match each other to at least some extent. -5-200416057 Especially for devices aimed at home users, the resistance displayed by fitness equipment can be adjusted in a relatively convenient way. As mentioned, the fitness equipment should be compact and lightweight to make it suitable for transportation and storage. It is also desirable to be able to use the instrument in at least two modes, i.e., to overcome resistance by pulling down on an actuating device that can be, for example, a handle, #, ankle or wristband, or the like, or by pulling up on the actuating device. These modes are given by way of example only, so that the fitness machine can be configured to provide resistance to overcoming any type of movement such as a user's push or __. (C) Summary of the Invention The present invention provides a resistance assembly for a fitness apparatus. The fitness apparatus includes an elongated first cylinder having a first cross-sectional area, and the inside of the first cylinder that is compressed with air when in use. An elongate structure # with a first end portion and a second end portion, the elongated member portion extending into the first cylinder, wherein the first end portion {stands inside the first cylinder, and the second end portion is located in the Outside of the second cylinder, the button (long member is installed to reciprocate relative to the first cylinder in its longitudinal direction), and the volume of the gas moved by the elongated member when the distance into the inside of the first cylinder is 〖 Given by the expression [xa], where a is a second cross-sectional area smaller than the ~~ th cross-sectional area, a position selected from a position outside the first cylinder on the elongated member and a position on the first cylinder The structure is for connection to an actuation device whereby a user can cause the elongated member to move relative to the first cylinder. The resistance assembly can include equipment to pressurize the interior of the first cylinder with gas. In one implementation In the example, the elongated member is For the hollow interior pipe, the first end is open and communicates with the interior of the first cylinder, and the second end is sealed from 2004 to 200416057. Preferably, the cross-sectional area of the hollow interior is equal to the second cross-sectional area ° In the second form of the invention 'the elongated member has a cross-sectional area equal to the second cross-sectional area. In the form of the invention' the elongated member may be solid 'or, if it is a pipe, its inner end The part is sealed.
該總成可包括有帶內和外側的活塞頭，該活塞頭固定在 該細長構件的第一端部上’並與該第一缸的內表面接合’ 並用來引導該細長構件的往復運動，並且其中在該第一缸 的內部，該活塞頭的內側上的氣體壓力與該活塞頭外側上 的氣體壓力相同。 該活塞頭在該第一缸的內部並在該活塞頭的內側和該活 塞頭的外側之間包括至少一使得氣體自由運動的構造。 該至少一構造可以是位於活塞頭內並在活塞頭的內側和 外側之間的通道。The assembly may include an inner and outer piston head, which is fixed on the first end of the elongated member 'and engages the inner surface of the first cylinder' and is used to guide the reciprocating movement of the elongated member, And inside the first cylinder, the gas pressure on the inside of the piston head is the same as the gas pressure on the outside of the piston head. The piston head includes at least one structure allowing the gas to move freely inside the first cylinder and between the inside of the piston head and the outside of the piston head. The at least one configuration may be a passageway located inside the piston head and between the inside and outside of the piston head.
在本發明的另一形式中，該阻力總成包括至少部分位於 該第一缸內並包括內端部和外端部的第二缸，該第二缸內 部的至少一部分通過該內端部與該第一缸的內部氣體連通 ;部分延伸到該第二缸內的細長構件，其中該細長構件的 第一端部位於該第二缸的內部，並且該細長構件的第二端 部從該第二缸的外端部延伸，該細長構件的往復運動發生 在該第二缸內；以及位於該細長構件的第一端部處的活塞 頭，該活塞頭與該第二缸的相對內表面密封和往復運動地 接觸。 200416057 (四）實施方式： 本發明將通過實例參考附圖進行說明： 第1〜3圖表示使用按照本發明第一形式的阻力總成的 健身器械1 0。 該健身器械包括框架1 2，該框架連接有座椅】6，使用者 可生在Μ标上，用於使用者背邰的靠背〗8定位在座椅上。 爲了儲藏和運輸的目的，通常由一個或多個支桿2〇支承的 座杨1 6司以向下折暨，使其大致平行於框架，同時以類似 的方式由一個或多個支桿22支承的靠背可以向框架樞轉 以便採取緊湊的位置。特別是如果該靠背運動到框架該框 木的緊湊储臧位置時，結構2 4可使用在框架的上端部上以 便用於載有健身順序的信息的卡片的保持器。 5亥框架通過向下懸置的U形構件2 8相對於地面2 6支承 在傾斜位置上，該U形構件在樞轉點3 〇處連接在框架！ 2 後側的支架32上。U形構件28可向內朝框架1 2運動以便 於儲臧和運輸，或如第1圖所示可運動離開框架以便爲框 架提供最大程度的穩定支承。 該健身器械在框架底部包括踏板3 6。該踏板形成殼體， 電動馬達3 8和由馬達驅動並通過柔性管4 2將空氣輸送到由 框架1 2支承的缸4 4的空氣泵或壓縮機4 〇定位在殼體中。 踏板殻體的上表面4 6是鋸齒形的或進行粗糙化，而且提 供作用表面，定位在座椅上的使用者的腳作用在該作用表 面上。 柔線電線5 0從馬達延伸到主電源上，未示出。踏板3 6 上的開關5 2可通過使用者的腳致動以便將馬達3 8連接在 -8- 200416057 主電源上或將該電源關閉。以此方式，馬達3 8的操作可 進行控制。壓力釋放閥6 0通過柔性線6 2連接在缸4 4上 壓力釋放閥還可通過使用者的腳來操作。由此使用者可 將壓縮機開啓並由此加壓缸44 ;將壓縮機關閉，或通過 動閥6 0來降低缸內的壓力。 按照本發明的第一形式，缸44連接在活塞70上以便 成爲使用者提供阻力總成7 2。其實施方法在下面描述。 4 4具有密封並安裝在下部的帶輪承載件7 6上的下端部 。活塞7 0具有安裝成在缸內往復運動的活塞頭7 8和從 頭延伸的活塞桿8 0。桿的上端部安裝在位於上部的帶輪 載件8 2上。 第一滑輪和纜繩系統84安裝成作用在下承載件76上 同時第二滑輪和纜繩系統8 6安裝成作用在上承載件8 2 。系統84包括一對通過一系列滑輪92 A〜92E之上的纜 9 〇相互連接的手柄8 8 A和8 8 B。滑輪9 2 C通過經過該承 件上的滑輪1 0 0 A和1 0 0 B之上的纜繩9 8連接在承載件 上。纜繩9 8的端部連接在框架1 2上的錨固點1 02上。 系統8 6分別具有位於通過滑輪1 1 2 A〜1 1 2 E之上的纜 Π 0的框架的下側處的手柄1 〇 8 A和1 0 8 B。滑輪1 1 2 C通 經過安裝在該支承件上的滑輪1 1 6 A和1 1 6 B之上的纜繩1 連接在承載件8 2上。 從第2圖看出活塞頭7 8只作用在缸內引導容積內。活 頭形成多個以缺口或切口 1 2 0爲形式的構造，該構造限 通過該活塞頭的通道並因此活塞頭一側上的缸內壓力與 以 〇 以 致 組 缸 74 該 承 上 繩 載 7 6 繩 過 14 塞 疋 該 -9- 200416057 頭的相對側上的壓力相同。 活塞桿8 0是帶有中空內部1 2 2的管件。插塞1 2 4密封桿 8 0的上端部。連接在活塞頭7 8上的桿的下端部開口，並 形成使得缸4 4的內部與桿的中空內部連通的開口 I 2 6。 當使用健身器械時，框架1 2定位成使其具有第1圖所示In another form of the invention, the resistance assembly includes a second cylinder located at least partially within the first cylinder and including an inner end portion and an outer end portion, and at least a portion of the interior of the second cylinder passes through the inner end portion and The interior of the first cylinder is in gas communication; an elongated member that partially extends into the second cylinder, wherein a first end of the elongated member is located inside the second cylinder, and a second end of the elongated member extends from the first The outer end of the two cylinders extends, and the reciprocating motion of the elongated member occurs in the second cylinder; and a piston head located at the first end of the elongated member, the piston head is sealed with the opposite inner surface of the second cylinder Contact with reciprocating motion. 200416057 (four) Embodiment: The present invention will be described by way of example with reference to the accompanying drawings: Figs. 1 to 3 show a fitness apparatus 10 using a resistance assembly according to the first form of the present invention. The fitness machine includes a frame 12 which is connected with a seat] 6, and a user can be born on the M mark, and a backrest 8 for the user's back is positioned on the seat. For storage and transportation purposes, the cymbal 16 supported by one or more struts 20 is usually folded down so that it is approximately parallel to the frame, while in a similar manner by one or more struts 22 The supported backrest can be pivoted towards the frame to take a compact position. Especially if the backrest is moved to the compact storage position of the frame and the frame, the structure 24 can be used on the upper end of the frame so as to be used as a holder for a card carrying information on the fitness sequence. The frame is supported in a tilted position relative to the ground 26 by a U-shaped member 2 8 suspended downward, which is connected to the frame at a pivot point 30. 2 on the rear bracket 32. The U-shaped member 28 can be moved inwardly toward the frame 12 for storage and transportation, or can be moved away from the frame as shown in Fig. 1 to provide the frame with maximum stable support. The exercise machine includes a pedal 36 at the bottom of the frame. The pedal forms a housing, and an electric motor 38 and an air pump or compressor 40 driven by the motor and delivering air to the cylinder 44 supported by the frame 12 through a flexible pipe 42 are positioned in the housing. The upper surface 46 of the pedal housing is indented or roughened, and provides an active surface on which the foot of a user positioned on the seat acts. The flexible wire 50 extends from the motor to the main power source, not shown. The switch 5 2 on the pedal 3 6 can be actuated by the user's foot to connect the motor 3 8 to the -8-200416057 main power source or turn it off. In this way, the operation of the motor 38 can be controlled. The pressure release valve 60 is connected to the cylinder 4 4 through a flexible wire 62 and the pressure release valve can also be operated by the user's foot. This allows the user to turn on the compressor and thereby pressurize the cylinder 44; turn the compressor off, or reduce the pressure in the cylinder by moving the valve 60. According to a first form of the invention, the cylinder 44 is connected to the piston 70 so as to provide the user with a resistance assembly 72. The implementation method is described below. 4 4 has a lower end portion which is sealed and mounted on a lower pulley carrier 76. The piston 70 has a piston head 78, which is mounted to reciprocate in the cylinder, and a piston rod 80, which extends from the head. The upper end of the lever is mounted on a pulley carrier 82 located at the upper part. The first pulley and cable system 84 is mounted to act on the lower carrier 76 while the second pulley and cable system 86 is mounted to act on the upper carrier 8 2. The system 84 includes a pair of handles 8 8 A and 8 8 B interconnected by a cable 9 0 over a series of pulleys 92 A to 92E. The pulley 9 2 C is connected to the carrier by a cable 98 passing over the pulleys 100 A and 100 B on the bearing. The end of the cable 98 is connected to the anchor point 102 on the frame 12. The system 86 has handles 108A and 108B at the lower side of the frame of the cable Π0 passing over the pulleys 1 12 A to 1 12 E, respectively. The pulley 1 1 2 C is connected to the carrier 8 2 via a cable 1 mounted on the pulleys 1 1 6 A and 1 1 6 B. It can be seen from Fig. 2 that the piston head 78 acts only on the guide volume in the cylinder. The movable head forms a plurality of structures in the form of a notch or cut 120, which is limited to the passage through the piston head and therefore the pressure in the cylinder on one side of the piston head and 6 Rope over 14 plugs. The pressure on the opposite side of this -9-200416057 head is the same. The piston rod 80 is a tube with a hollow interior 1 2 2. The plug 1 2 4 seals the upper end of the rod 80. The lower end portion of the rod connected to the piston head 78 is opened, and an opening I 2 6 is formed so that the inside of the cylinder 4 4 communicates with the hollow inside of the rod. When using an exercise machine, the frame 12 is positioned so that it has
的定向。使用者可在健身時坐、跪或站立。假設使用者通 過其背部貼靠靠背1 8來將自己定位在座椅1 6上。使用者 用他的一只腳致動開關5 2並且馬達3 8啓動並接著驅動壓 縮機4 0。一旦缸4 4的內部已經加壓到所需空氣壓力時， 馬達關閉。如果缸內壓力過高，壓力釋放閥6 〇致動使得空 氣從缸內釋放。因此使用者可使用腳操作的控制裝置5 2和 6 0相對容易地調整或控制缸內壓力。Orientation. Users can sit, kneel or stand while exercising. It is assumed that the user positions himself on the seat 16 by resting his back against the backrest 18. The user actuates the switch 52 with one of his feet and the motor 38 starts and then drives the compressor 40. Once the interior of the cylinder 44 has been pressurized to the required air pressure, the motor is turned off. If the pressure in the cylinder is too high, the pressure relief valve 60 is actuated to release air from the cylinder. Therefore, the user can use the foot-operated control devices 52 and 60 to adjust or control the in-cylinder pressure relatively easily.
假設使用者抓握上手柄8 8 A和8 8 B並將手柄向下拉，如 第3圖箭頭1 3 0所示。由於滑輪和纜繩系統8 4，下部的帶 輪承載件7 6升高並且缸隨著通過往復運動進入缸內的活 塞升高。當桿8 0被迫進入缸時，產生趨於反作用所示運動 的阻力。由缸和中空活塞桿8 0內的加壓空氣佔據的有效容 積根據桿延伸到缸4 4內的程度來減少。 如果缸44內部的壓力相對較高，那麼需要相當大的力運 動桿8 0進入缸。但是由於與缸4 4的容積相比，桿8 0的內 部容積相對較小，當桿以更大程度運動到缸內時，需要將 桿運動到缸內的力只略微增加。換言之’在由手柄8 8 A和 8 8 B的向下運動表示的行程長度上’由活塞和缸總成7 2表 示的阻力只略微增加。 -10- 200416057 由於系統8 4的機械增益，手柄8 8 A和8 8 b 是活塞進入缸的行程長度的四倍。因此與健身 長度相比，活塞和缸總成可相對緊湊。所伴隨 當總成伸縮時，由於活塞相對於缸的傳動程度 缸內壓力的變化受到限制。 在總成7 2的所述伸縮連動期間’活塞桿的上 件8 2支承，該承載件繼而通過框架1 2上的支 構1 4 〇支承。另一方面’當抓握手柄1 〇 8 A和 頭1 4 2的方向向上拉時，上承載件8 2向下運動 架上與支承構件1 4 0相對的支承或支承構件1 在下承載件7 6上的缸4 4的下端部7 4運動。 與活塞進入缸的行程長度相比’手柄1 〇 8 A牙 出與手柄8 8 A和8 8 B相同的相對長的行程長度 健身器械1 0具有多個顯著的優點。首先，使 整缸4 4內的壓力，並且這意味著使用者按照其 使在健身時也可調整阻力。根據情況不同，使 從手柄8 8或1 0 8上脫開手即可進行調整。其2 當使手柄8 8或1 0 8時造成的行程長度是活塞進 長度的四倍。這使得健身器械具有緊湊的結構 第三，每個系統8 4和8 6內的滑輪的數量相 這蒽味著摩擦損失保持很低。因此由活塞和缸I 的正阻力（即當手柄8 8在箭頭1 3 0的方向上運 1 ◦ 8在箭頭1 4 2的方向上運動時所產生的力）只 爲當缸4 4內的空氣膨脹以便將活塞和缸總成 的行程長度 器械的行程 的優點在於 受到限制， 端部由承載 承構件或結 1 0 8 B並以箭 並且通過框 4 6防止安裝 Cl 1 0 8 B顯示 〇 用者可以調 身體條件即 用者不需要 e，如所述， 入缸的行程 〇 對少，並且 悤成7 2顯示 動時或手柄 略微大於作 恢復到其延 200416057 伸位置時產生的力的負阻力。 已經提到的另一優點在於當桿運動到缸內時需要驅動活 塞桿進一步進入缸的力只略微增加。該力是缸內壓力的函 數，並且如果該壓力足夠高，當活塞運動到缸內時力的相 對增加是比較低的。力增加的程度是缸4 4和中空桿8 0內 部的相對容積的函數。 該健身器械重量輕。該阻力通過使用缸和活塞總成產生 的，該總成通過使用者將空氣加壓到可以調整的選擇和受 控的水平上。該健身器械可緊湊地折疊成相對平的配置， 在不使用時可例如儲藏在床下或門後。在這種情況下，應 該看到壓縮機和馬達安裝在殼體3 6內並因此與該健身器 械整體相關。如第1圖彎曲箭頭1 5 8所示，需要時殼體可 向上折疊到靠近框架的緊湊的儲藏位置。該健身器械因此 是彎曲整裝的單元並只需要連接到電源上以便操作。然而 ，可採用相同原理來設置健身器械，該器械可以是多個類 似器械之一並通過遠程安裝的壓縮機加壓。如果需要每個 器械中的壓力可通過每個各自使用者控制。 在每種情況下，該控制是腳操作的。但是還可採用手操 作、遠程驅動或聲音驅動控制裝置來調整缸內壓力。 按照本發明的第二形式，第4圖示意表示阻力總成1 6 0 用來代替第2和3圖所示阻力總成7 2。阻力總成1 6 0具有 多個與總成7 2的類似處，其中相同的參考標號用來表示相 同的部件。總成1 6 0未表示安裝成健身器械中。它可以與 總成7 2相同的方式使用，如第]〜3圖所示，或使用在適 -12- 200416057 當設計的任何其他健身器械中。類似說明適於總成 總成7 2和總成】6 〇之間的主要區別在於總成1 6 〇 爲8 0 A的活塞桿是實體的。作爲選擇，如果該桿是 ，桿的標號爲1 26A的下端部通過板或插塞密封，使其 缸4 4的內部如所述通過壓縮機或氣缸加壓。 活塞頭7 8還具有缺口或切口 1 2〇，該切口確保活 側的缸內用來與活塞頭的下側上的壓力相同。 當活塞桿相對於缸（其中缸不動）運動或如果使得 於該活塞桿（其中活塞桿不動）往復運動，當桿80 A 程度進入到該缸時缸內空氣進一步加壓，而當桿從 回時壓力略微降低。除了總成7 2中加壓空氣佔據的 積等於缸的容積和活塞桿內部容積的總和以及最小 於缸的容積減去活塞桿的壁容積之外，該操作與阻 7 2大致相同。對於總成1 6 0，由加壓空氣佔據的最 略微小於總成7 2並等於缸的容積。最小容積同樣略 ，其中該容積等於缸容積減去實體和密封活塞桿的 但是基本上阻力總成1 6 0提供與阻力總成7 2相同的 第5圖表示同樣等同於總成72的第三阻力總成！ 成1 6 6包括第一或外缸1 6 8和定位在缸1 6 8內側的 1 7 0。缸1 7 0的下端部1 7 2開口並由其中形成多個孔 板1 7 4支承。缽1 7 〇的上端部由與缸1 6 8和1 7 0密 並包括活塞桿1 8 4延伸通過其中的孔或插塞1 8 2的 支承。活塞桿的前端1 8 6載有活塞頭1 8 8，該活塞 二缸]7 0的內表面〗9 0滑動和密封接合。桿1 8 4的 72 〇 中標號 中空的 ί氣密。 塞頭上 缸相對 以更大 缸中縮 最大容 容積等 力總成 大容積 微減少 容積。 I優點。 66。總 第二缸 1 76的 封接合 板1 80 頭與第 外或上 200416057 端部1 9 2與健身器械（未示出）上的載體結構8 2接合。類似 地，缸1 6 8的下端部連接在健身器械的載體結構7 6上。_ 力總成1 6 6可例如以第2圖所示的方式使用，但絕不是鸯 作出限制，該阻力總成可使用在任何適當設計的健身器_ 中 〇 缸1 6 8和缸1 7 0通過來自適當壓縮機或氣缸（未示出）内 的加壓空氣同時加壓。 活塞頭1 8 8進行與第2圖所示中空桿8 0或第7圖所示實 體缸8 0 A相同的功能，以便當活塞頭1 8 8進入缸1 7 0時， 兩個缸中的空氣根據通過前進的活塞頭移位的空氣總量加 壓。 使用本發明健身器械時，升高的位置應該與第6圖示意 表示的現有技術的位置相比較，第6圖表示用來自例如壓 縮機的空氣源2 0 2的空氣加壓的儲槽或蓄能器2 0 0。結構 相對小的單獨的阻力缸204通過管2 0 5連接在該儲槽上。 缸2 0 4包括帶有活塞頭2 0 8的活塞桿2 0 6，該活塞頭安裝 成在缸2 0 4內往復和密封運動。從現有技術文件中看出， 由於需要至少兩個單獨的缸，使用第6圖所示的現有技術 配置的健身器械很笨重。如果現有技術的配置採用在健身 器械中，那麼將難以提供在不操作的儲藏模式下適於方便 運輸或儲藏的緊湊健身器械。但是此特定的目的通過使用 按照本發明阻力總成的健身器械來實現。 採用阻力總成7 2和1 6 0，該活塞桿的有效截面面積確定 該活塞桿運動到該缸內時移動的空氣容積。參考第2圖， -14- 200416057 假設該活塞桿在其中空內部具有截面面積a，缸4 4具有截 面面積A。當該桿運動到缸內距離彳時，移動的空氣容積 由表達式彳X a給出。由於該截面面積顯著小於缸4 4的截 面面積A，缸內壓力的變化相對小，並且最大程度上該活 塞克服不隨著活塞桿的運動顯著增加的力進行運動。 在第4圖實施例中，實體活塞桿8 0 A的截面面積是a， 並且當活塞桿進入缸4 4的距離爲.（時，移動空氣的容積是 ax 該容積顯著小於如果活塞頭78很大並且密封與缸44 接合的情況。 在第5圖實施例中，活塞2 8 8的截面面積是a，並且當 活塞進入缸2 7 0的距離爲/時，移動空氣的容積由表達式 ax 給出。 在所有三個實施例中，根據情況，如果a顯著小於缸44 的截面面積A或缸1 6 8的有效截面面積，那麼當活塞從其 完全從缸縮回的位置運動到其完全插入缸的位置，阻力只 是邊際增加。儘管可以採用第6圖所示的現有技術配置來 實現空氣壓力的相對小的變化，這需要以至少一佔有另外 空間的部件爲代價。 A與a的比例應該至少是6，但最好更高。在此方面，在 活塞行程期間所產生的阻力（這是a和缸內空氣壓力乘積的 函數）和阻力變化之間必須形成折中。 (五）圖式簡單說明： 胃1 _是包括阻力總成的本發明的健身器械在即可使用 狀悲Ί、的側視圖； 200416057 第2圖是從該器械的前部的透視圖，其中拆卸某些部件 以簡化說明； 第3圖表示第1圖的健身器械的運動部件； 第4圖表示採用在第1〜3圖的器械內的不同類型的阻力 總成； 第5圖是按照本發明的阻力總成的另一類型；以及 第6圖是示意表示現有技術類型的阻力總成。 主要部分之代表符號說明： 10 健身器械 12 框架 16 座椅 18 靠背 20,22 支桿 24 結構 26 地面 2 8 U形構件 3 0 樞轉點 3 2 支架 3 6 踏板 3 8 電動馬達 40 空氣泵（或壓縮機） 42 柔性管 44 缸 46 上表面 -16- 200416057 5 0 柔 性 電 線 5 2 開 關 60 壓 力 釋 放 62 柔 性 線 70 活 垂 72,]60,166 阻 力 總 成 74 下 丄山 舰 部 76 下 部 的 市 7 8 活 塞 頭 8 0,8 0 A 活 塞 桿 82 上 部 的 帶 84 第 一 滑 輪 86 第 一 滑 輪 88 A J ;8B，108A，108B 手 柄 90,98 5 1 10,1 1 4 纜 繩 92 A〜 92E;1 12A?1 12B; 滑 輪 1 16A; 1 16B; 120A, 120B 102,1 18 ^1-1-ί田 固 定 1 20 缺 □ 1 22 中 空 內 部 1 24 插 塞 1 26 開 □ 1 26 A 桿 13 0,1 42 冃丨J 頭 140,1 46 支 承 構 件 輪承載件 輪承載件 和纜繩系統 和續繩系統Assume that the user grasps the upper handles 8 8 A and 8 8 B and pulls the handle downward, as shown by the arrow 1 3 0 in FIG. 3. Due to the pulley and cable system 84, the lower pulley carrier 76 is raised and the cylinder is raised with the piston entering the cylinder by reciprocating motion. When the rod 80 is forced into the cylinder, resistance is created which tends to react to the movement shown. The effective volume occupied by the cylinder and the pressurized air in the hollow piston rod 80 is reduced according to the extent to which the rod extends into the cylinder 44. If the pressure inside the cylinder 44 is relatively high, considerable force is required to move the rod 80 into the cylinder. However, since the internal volume of the rod 80 is relatively small compared to the volume of the cylinder 44, when the rod is moved into the cylinder to a greater extent, the force required to move the rod into the cylinder is only slightly increased. In other words, 'on the stroke length indicated by the downward movement of the handles 8 8 A and 8 8 B', the resistance indicated by the piston and cylinder assembly 72 is only slightly increased. -10- 200416057 Due to the mechanical gain of System 84, the handles 8 8 A and 8 8 b are four times the stroke length of the piston into the cylinder. As a result, the piston and cylinder assembly can be relatively compact compared to the fitness length. Accompanied by the expansion and contraction of the assembly, due to the degree of transmission of the piston relative to the cylinder, the pressure change in the cylinder is limited. During the telescoping linkage of the assembly 72, the upper part 82 of the piston rod is supported, which in turn is supported by the support 14 on the frame 12. On the other hand, when the handle 1 0 8 A and the head 1 4 2 are pulled upwards, the upper carrier 8 2 is supported on the downward movement frame opposite the support member 1 4 0 or the support member 1 is at the lower carrier 7 The lower end 7 4 of the cylinder 4 4 on 6 moves. Compared with the stroke length of the piston into the cylinder, the 'handle 108 A' has the same relatively long stroke length as the handles 8 8 A and 8 8 B. The fitness machine 10 has several significant advantages. First, the pressure in the entire cylinder 44 is made, and this means that the user can also adjust the resistance when exercising. Depending on the situation, adjustment can be made by removing the hand from the handle 8 8 or 108. Second, the stroke length when the handle 8 8 or 108 is used is four times the length of the piston. This makes the fitness equipment compact. Third, the number of pulleys in each of the systems 84 and 86 is relatively small. This anthracite means that friction losses remain low. Therefore, the positive resistance of the piston and the cylinder I (that is, the force generated when the handle 8 8 moves in the direction of the arrow 1 3 0 1 8 when the handle 8 moves in the direction of the arrow 1 4 2) is only when the inside of the cylinder 4 4 The advantage of the air-inflated stroke to lengthen the stroke length of the piston and cylinder assembly is that the travel of the instrument is limited, the ends are shown by load bearing members or knots 1 0 8 B and arrows and through the frame 4 6 to prevent installation of Cl 1 0 8 B The user can adjust the body condition, that is, the user does not need e. As mentioned, the stroke into the cylinder is 0 pairs, and it is shown as 72. The movement or the handle is slightly larger than the force generated when it is restored to its extended position of 200416057. Negative resistance. Another advantage that has been mentioned is that the force required to drive the piston rod further into the cylinder is only slightly increased when the rod is moved into the cylinder. This force is a function of the pressure in the cylinder, and if the pressure is high enough, the relative increase in force when the piston moves into the cylinder is relatively low. The degree of force increase is a function of the relative volume inside the cylinder 44 and the hollow rod 80. The fitness machine is lightweight. This resistance is created by the use of a cylinder and piston assembly that pressurizes the air to a selectable and controlled level by the user. The fitness machine can be compactly folded into a relatively flat configuration and can be stored under a bed or behind a door when not in use, for example. In this case, it should be seen that the compressor and motor are installed in the housing 36 and are therefore related to the whole body of the exercise machine. As shown by the curved arrow 158 in Figure 1, the housing can be folded up to a compact storage position close to the frame when needed. The exercise machine is therefore a flex-fit unit and only needs to be connected to a power source for operation. However, the same principle can be used to set up an exercise machine, which can be one of a number of similar machines and pressurized by a remotely mounted compressor. The pressure in each instrument can be controlled by each individual user if required. In each case, the control is foot operated. However, manual, remote, or sound-driven controls can also be used to adjust the in-cylinder pressure. According to a second form of the invention, FIG. 4 schematically shows a resistance assembly 16 0 instead of the resistance assembly 72 shown in FIGS. 2 and 3. The resistance assembly 160 has many similarities to the assembly 72, where the same reference numerals are used to indicate the same components. The assembly 160 is not shown as being installed in a fitness machine. It can be used in the same way as the assembly 72, as shown in Figures 3 ~ 3, or used in any other fitness equipment designed by -12-200416057. The similar description applies to the assembly. The main difference between the assembly 72 and the assembly] 60 is that the piston rod of the assembly 160 is 80 A is solid. Alternatively, if the lever is, the lower end of the lever, designated 26A, is sealed by a plate or plug, so that the inside of the cylinder 44 is pressurized by the compressor or the cylinder as described. The piston head 78 also has a notch or cut 120, which ensures that the in-cylinder on the live side is used for the same pressure as on the lower side of the piston head. When the piston rod moves relative to the cylinder (where the cylinder does not move) or if the piston rod (where the piston rod does not move) is reciprocated, the air in the cylinder is further pressurized when the rod enters the cylinder to an extent of 80 A, and The pressure decreases slightly. This operation is approximately the same as the resistance 72 except that the volume occupied by the pressurized air in the assembly 7 2 is equal to the sum of the volume of the cylinder and the internal volume of the piston rod and the minimum volume of the cylinder minus the wall volume of the piston rod. For assembly 160, the compressed air takes up slightly less than assembly 72 and equals the volume of the cylinder. The minimum volume is also the same, where the volume is equal to the cylinder volume minus the solid and sealed piston rods, but basically the resistance assembly 1 6 0 provides the same as the resistance assembly 7 2. Resistance assembly! The 1 6 6 includes a first or outer cylinder 1 6 8 and 1 7 0 positioned inside the cylinder 1 6 8. The lower end 17 2 of the cylinder 170 is open and supported by a plurality of orifice plates 174 formed therein. The upper end of the bowl 170 is supported by holes or plugs 1 8 2 which are dense with the cylinders 16 8 and 170 and include a piston rod 1 84 extending therethrough. The front end 1 8 of the piston rod carries a piston head 1 8 8, and the inner surface of the piston 2 cylinder 7 90 is slidingly and sealingly engaged. Rod 1 8 4 72 〇 middle hollow ί airtight. The upper cylinder of the plug head is relatively large in the cylinder, and the maximum volume is equal to the force assembly. The large volume is slightly reduced. I advantages. 66. The sealing joint plate 1 80 of the second cylinder 1 76 is engaged with the outer or upper 200416057 end 1 9 2 with the carrier structure 8 2 on the exercise machine (not shown). Similarly, the lower end of the cylinder 1 6 8 is connected to the carrier structure 7 6 of the exercise machine. _ The force assembly 1 6 6 can be used, for example, in the manner shown in Figure 2, but it is by no means a limitation. The resistance assembly can be used in any suitably designed exercise machine_ Cylinder 1 6 8 and Cylinder 1 7 0 is simultaneously pressurized by pressurized air from a suitable compressor or cylinder (not shown). The piston head 1 8 8 performs the same function as the hollow rod 80 shown in FIG. 2 or the solid cylinder 80 A shown in FIG. 7, so that when the piston head 1 8 8 enters the cylinder 170, the The air is pressurized according to the total amount of air displaced by the forward piston head. When using the fitness equipment of the present invention, the raised position should be compared with the position of the prior art schematically shown in FIG. 6, which shows a storage tank or a tank pressurized with air from an air source 2 0 2 such as a compressor Accumulator 2 0 0. Structure A relatively small separate resistance cylinder 204 is connected to the storage tank through a pipe 205. Cylinder 2 0 4 includes a piston rod 2 6 with a piston head 20 8 which is mounted for reciprocating and sealing movement within the cylinder 2 0 4. It can be seen from the prior art documents that, since at least two separate cylinders are required, using the prior art configuration of the fitness equipment shown in FIG. 6 is cumbersome. If the prior art configuration is employed in an exercise machine, it will be difficult to provide a compact exercise machine suitable for convenient transportation or storage in a non-operating storage mode. However, this particular object is achieved by using a fitness apparatus according to the resistance assembly of the present invention. Using resistance assemblies 7 2 and 16 0, the effective cross-sectional area of the piston rod determines the volume of air that moves when the piston rod moves into the cylinder. Referring to Fig. 2, -14-200416057, it is assumed that the piston rod has a cross-sectional area a in the hollow interior, and the cylinder 44 has a cross-sectional area A. When the rod moves to a distance 彳 in the cylinder, the volume of air moving is given by the expression 彳 X a. Since the cross-sectional area is significantly smaller than the cross-sectional area A of the cylinder 44, the change in pressure in the cylinder is relatively small, and the piston moves to overcome a force that does not increase significantly with the movement of the piston rod to the greatest extent. In the embodiment of FIG. 4, the cross-sectional area of the solid piston rod 80 A is a, and when the distance that the piston rod enters the cylinder 44 is. (, The volume of moving air is ax, which is significantly smaller than if the piston head 78 is very Large and hermetically connected to the cylinder 44. In the embodiment of Fig. 5, the cross-sectional area of the piston 2 8 8 is a, and when the distance the piston enters the cylinder 2 70 is /, the volume of moving air is expressed by the expression ax Given in all three embodiments, if a is significantly smaller than the cross-sectional area A of the cylinder 44 or the effective cross-sectional area of the cylinder 168, then when the piston moves from its fully retracted position to its full The position of inserting the cylinder is only a marginal increase. Although the prior art configuration shown in Figure 6 can be used to achieve relatively small changes in air pressure, this requires the cost of at least one component occupying another space. The ratio of A to a It should be at least 6, but preferably higher. In this respect, a compromise must be formed between the resistance generated during the piston stroke (this is a function of the product of a and the air pressure in the cylinder) and the change in resistance. (5) Figure Jane Description: Stomach 1_ is a side view of the fitness machine of the present invention including a resistance assembly in a ready-to-use state. 200416057 Figure 2 is a perspective view from the front of the device, with some components removed to simplify the description. Figure 3 shows the moving parts of the fitness equipment of Figure 1; Figure 4 shows the different types of resistance assemblies used in the equipment of Figures 1 to 3; Figure 5 is another variation of the resistance assembly according to the invention A type; and FIG. 6 is a schematic diagram showing a conventional type of resistance assembly. Description of the representative symbols of the main parts: 10 fitness equipment 12 frame 16 seat 18 back 20, 22 strut 24 structure 26 floor 2 8 U-shaped member 3 0 Pivot point 3 2 Bracket 3 6 Pedal 3 8 Electric motor 40 Air pump (or compressor) 42 Flexible tube 44 Cylinder 46 Upper surface -16- 200416057 5 0 Flexible wire 5 2 Switch 60 Pressure release 62 Flexible wire 70 Live 72,] 60,166 Resistance assembly 74 Lower Sheshan Ship Department 76 Lower city 7 8 Piston head 8 0,8 0 A Piston rod 82 Upper belt 84 First pulley 86 1 pulley 88 AJ; 8B, 108A, 108B handle 90, 98 5 1 10, 1 1 4 cable 92 A ~ 92E; 1 12A? 1 12B; pulley 1 16A; 1 16B; 120A, 120B 102, 1 18 ^ 1- 1-lit field fixing 1 20 missing □ 1 22 hollow interior 1 24 plug 1 26 open □ 1 26 A rod 13 0, 1 42 J 丨 J head 140,1 46 support member wheel carrier wheel carrier and cable system and Rope extension system
-17- 200416057 15 8 彎曲箭頭 16 8 第一（或外）缸 1 70 第二缸 1 72 下端部 174,180 板 1 76 孔 1 82 孔（或插塞） 1 84 活塞桿 1 86 前端 188,208 活塞頭 1 90 內表面 1 92 外（或上）端部 200 儲槽（或蓋路器） 202 空氣源 204 單獨的阻力缸 205 管 206 活塞桿-17- 200416057 15 8 curved arrow 16 8 first (or outer) cylinder 1 70 second cylinder 1 72 lower end 174,180 plate 1 76 hole 1 82 hole (or plug) 1 84 piston rod 1 86 front end 188,208 piston head 1 90 Inner surface 1 92 Outer (or upper) end 200 Storage tank (or cover) 202 Air source 204 Separate resistance cylinder 205 Tube 206 Piston rod
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