MJ/7236 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種仰臥起坐訓練機，尤指一種可用以 輔助使用者進行仰臥起坐之動作的訓練機。 【先前技術】 仰臥起坐主要可用以锻鍊腰部及腹部的肌肉，又因動 作簡單且較不受場地大小之限制，故為常見的健身方法之 —^ 〇 然而，一般人在進行仰臥起坐時，經常會將雙手手指 乂又置於後腦，並用力向上搬動頭部，造成對頸部施予的 不正常外力作用，很容易導致頸部肌肉拉傷等傷害；此外， 許多的研究顯#，即使是動作標準的仰臥起坐，由於在進 灯時會牽動到臀肌與腹肌而形成弓背的狀態，故存在導致 脊柱與腰椎間盤損傷的風險。 【新型内容】 有鑑於前述現有技術的缺點，本創作提供一種仰臥起 坐訓練機，希藉此設計輔助使用者進行仰臥起坐之動作， 以避免受傷，同時達到鍛鍊及按摩身體之功效。 為了達到上述的創作目的’本創作所利用的技術手段 係使一仰臥起坐訓練機包括： 一底座； —椅座，其固設於該底座上； 一連動結構，其架設於該底座與椅座之間，該連動結 S有握才干、-背桿及一連動桿，該握桿以其中段處 μ.)//236 .為支點樞接於該底座之一前支架上，該背桿以其中段處為 •支點樞接於該椅座之一座椅支架上，背桿上設有一靠背按 摩輪組，該靠背按摩輪組具有一承架及複數個按摩滾輪， 該承架樞接於該背桿頂端，該按摩滾輪可自由轉動地設於 該承架上，該連動桿的兩端分別樞接於該握桿與背桿的底 端，此連動結構與底座後端間設有至少一彈性件； 一踏板組件，其樞接於該底座上並朝底座前端延伸， 踏板組件與底座間設有至少一彈性件。 • 藉由如上所述之設計，本創作之仰臥起坐訓練機可經 由該彈性件之彈性恢復力辅助使用者的上半身抬起完成 仰臥起坐之動作，以避免使用者的頸部或脊柱因過度用力 而党到傷害，該靠背按摩輪組之按摩滾輪則可在使用者的 背部來回滚動，達到按摩之效果。 【實施方式】 參見第一及二圖所示，本創作之仰臥起坐訓練機包括 一底座（10)、一椅座（20)、一連動結構（30)及一踏板組件 _ (50)，其中： " 底座（1 0)係用以將此仰臥起坐訓練機穩定地設置於平 面上’並供其他元件組裝架設之用，該底座（1〇)上朝前端 延伸延伸有一前支架（11) ’朝後端延伸設有一後支架（1 2); 椅座（20)固設於該底座（1〇)的前、後支架（u)(12)之 間’其包含有一設置於該底座（1〇)上的座椅支架（21)，並 於該座椅支架（21)上設有一坐墊（22); 進一步參見第三圖所示，連動結構（3〇)架設於該底座 (10)與椅座（20)之間，其包含有一握桿（31)、一背桿（33)、 MJ/7236 一靠背按摩輪組（34)及一連動桿（35); 該握桿（31)以其中段處為支點枢接於該前支架（11) 上，握桿（31)頂端分別朝兩旁側橫向延伸設有—握把 (311)； 該老才干（33)以其中段處為支點樞接於該座椅支架pi) 上，且位於該坐墊（22)的後側，該背桿（33)底端與後支架（1 2) '間以至少—彈性件（40A)連接，連接構造的較佳實施例可在 背桿（33)與後支架（12)處設有桿件，彈性件（4〇A)的兩端以 φ 桿件穿設； 進一步參見第六圖所示，為本創作中底座（1〇)之後支 架（12A)的另一實施例，該後支架（12A)可包含有二伸縮管 件（121A)，該伸縮管件（121A)分別設於該底座（1〇)的兩側 並朝底座（1〇)後端延伸，每一伸縮管件（121A)具有相互套 接的一外管（122A)及一内管（123A)，於該内管（123A)上間 隔設有若干調整孔（124A)，再利用一插銷（125A)貫穿該外 管（122A)並結合於其中一調整孔（124A)中，藉此調整該伸 ® "縮管件（121 A)的長度，進而改變該連接背桿（33)與後支架 '(12A)之彈性件（40A)的鬆緊度； 該靠背按摩輪組（34)樞接於該背桿（33)頂端，其具有 一承架（341)及複數個按摩滾輪（343)，該承架（341)以其中 段處與頂端之間為支點樞接於該背桿（33)頂端，較佳地， 該承架（341)為一弧形的架體.，該按摩滾輪（343)係可自由 轉動地設於該承架（341)上，又，於本創作之具體實施方式 中’該承架（341)的兩端分別設有一朝旁側延伸的支桿 (342) ’該按摩滾輪（343)則分別套設於該支桿（342)上，其 中該叹於承架（341)底端處之按摩滾輪（343)的重量總合 大於於承架（341)頂端處之按摩滾輪（343)的重量總合， 且由於該承架(34”係以靠近頂端的一處與該座椅支架(2” 樞接使得承架（341)底端處所形成的力矩會大於承架（34 ]) 頂端處所產生的力矩’故可確保該承架（341)於自然狀態下 係呈現直立之狀態； 該連動桿（35)的兩端分別樞接於該握桿（31)與背桿（33) 的底端； 踏板組件（5G)設於該前支架⑴）上，並朝底座（1〇)前端 L伸-八有踏板支架（51)，該踏板支架（51)樞接於該 刖支架（11)上，其兩側分別設有一踏板（52)，又踏板支 架（51)與則支架（11)間以至少一彈性件（4〇b)連接。 配合參見第四圖所示，本創作之仰臥起坐訓練機於使 用時，使用者係乘坐於該坐墊（22)上，雙手握持握桿（31) 之握把（31 1)’背部抵靠於該靠背按摩輪組（34)，雙腳則呈 彎曲而撐持於該踏板（52)上；隨後，進一步參見第五圖所 示，使用者雙手用力將握桿（31)向身體方向拉伸，上半身 壓抵該靠背按摩輪組（34)及背桿（33)朝後側躺靠，雙腳則 壓抵該踏板（52)及踏板支架（51)而逐漸伸直。 此時，握桿（31)底端會帶動該連動桿（35)及背桿（33)底 端朝底座（10)前端擺動，使背桿（33)頂端朝底座（1〇)後端擺 動’此外’踏板支架（51)則朝底座（1〇)前端擺動，同時拉 伸該彈性件（4〇A)(40B);其中’由於在拉伸握桿（31)及壓 抵踏板支架（51)而拉伸彈性件（40A)(40B)時，可同時鍛鍊 使用者的手部及腳部的肌肉群，故該彈性件（4〇a)(4〇b)的 M377236 數1可視使用者之需求進行調整，以改變運動的強度。MJ/7236 V. New description: [New technical field] This creation is about a sit-up training machine, especially a training machine that can be used to assist the user in sit-ups. [Prior Art] Sit-ups can be used to forge the waist and abdomen muscles, and because of the simple movement and less restriction on the size of the field, it is a common fitness method. ^ However, when people are doing sit-ups I often put my hands and fingers on the back of the head and forcefully move the head upwards, causing an abnormal external force applied to the neck, which can easily cause neck muscle strain and other injuries; in addition, many studies have shown #, Even if it is the standard sit-up of the action, there is a risk of causing damage to the spine and lumbar disc due to the state in which the gluteal muscle and the abdominal muscles are pulled into the bow when entering the lamp. [New content] In view of the above-mentioned shortcomings of the prior art, the present invention provides a sit-up training machine, which is designed to assist the user in performing sit-ups to avoid injuries while achieving the effects of exercising and massaging the body. In order to achieve the above-mentioned creative purpose, the technical means utilized by the present invention is to make a sit-up training machine include: a base; a seat fixed to the base; a linkage structure, which is mounted on the base and the chair Between the seats, the linkage S has a grip, a back bar and a linkage rod, and the grip is pivotally connected to a front bracket of the base at a position of μ.)//236. The fulcrum is pivotally connected to a seat bracket of the seat, and the backrest is provided with a backrest massage wheel set. The back massage wheel set has a frame and a plurality of massage rollers, and the frame is pivotally connected. The massage roller is rotatably disposed on the bracket, and the two ends of the linkage rod are respectively pivotally connected to the bottom ends of the grip rod and the back rod, and the linkage structure is disposed between the rear end of the base and the base At least one elastic member; a pedal assembly pivotally connected to the base and extending toward the front end of the base, and at least one elastic member is disposed between the pedal assembly and the base. • With the design as described above, the sit-up training machine of the present invention can assist the upper body of the user to perform the sit-up exercise through the elastic restoring force of the elastic member to avoid the neck or spine of the user. Excessive force and party damage, the massage roller of the back massage wheel can roll back and forth on the back of the user to achieve the effect of massage. [Embodiment] Referring to the first and second figures, the sit-up training machine of the present invention comprises a base (10), a seat (20), a linkage structure (30) and a pedal assembly _ (50). Where: " base (10) is used to stably set the sit-up training machine on the plane' and for other components to be assembled and erected, the base (1〇) has a front bracket extending toward the front end ( 11) 'A rear bracket (1 2) is extended toward the rear end; a seat (20) is fixed between the front and rear brackets (u) (12) of the base (1), which includes a a seat bracket (21) on the base (1〇), and a seat cushion (22) is disposed on the seat bracket (21); further referring to the third figure, the linkage structure (3〇) is erected on the base ( 10) between the seat (20), comprising a grip (31), a back rod (33), an MJ/7236, a back massage wheel set (34) and a linkage rod (35); 31) pivotally connected to the front bracket (11) with the middle portion as a fulcrum, and the top end of the grip rod (31) extends laterally toward the two sides to provide a grip (311); the old talent (33) is in the middle portion The fulcrum is pivotally connected to the seat bracket pi) and located at the rear side of the seat cushion (22), and the bottom end of the back rod (33) and the rear bracket (1 2)' are connected by at least an elastic member (40A) A preferred embodiment of the connection structure may be provided with a rod member at the back rod (33) and the rear bracket (12), and both ends of the elastic member (4〇A) are pierced with a φ rod; for further reference to the sixth figure As another embodiment of the base (1A) rear bracket (12A), the rear bracket (12A) may include two telescopic tube members (121A), and the telescopic tube members (121A) are respectively disposed on the base ( 1 〇) both sides and extending toward the rear end of the base (1〇), each telescopic tube member (121A) has an outer tube (122A) and an inner tube (123A) that are sleeved to each other, and the inner tube (123A) The upper spacing is provided with a plurality of adjusting holes (124A), and a pin (125A) is inserted through the outer tube (122A) and coupled into one of the adjusting holes (124A), thereby adjusting the extension® " shrinking tube member (121 A) The length of the connecting back bar (33) and the elastic member (40A) of the rear bracket '(12A); the back massage wheel set (34) is pivotally connected to the top of the back bar (33) The utility model has a frame (341) and a plurality of massage rollers (343) pivotally connected to the top end of the back bar (33) with a fulcrum between the middle portion and the top end. Preferably, the frame The frame (341) is an arc-shaped frame body. The massage roller (343) is rotatably disposed on the frame (341), and in the specific embodiment of the present invention, the frame (the frame) Each of the two ends of the 341) is provided with a struts (342) extending toward the side. The massage rollers (343) are respectively sleeved on the struts (342), wherein the sighs at the bottom end of the frame (341) The weight of the massage roller (343) is greater than the total weight of the massage roller (343) at the top end of the carrier (341), and since the carrier (34) is attached to a position near the top and the seat bracket (2" pivoting causes the moment formed at the bottom end of the frame (341) to be greater than the torque generated at the top end of the frame (34)), thus ensuring that the frame (341) is in an upright state in a natural state; The two ends of the linkage rod (35) are respectively pivotally connected to the bottom ends of the grip rod (31) and the back rod (33); the pedal assembly (5G) is disposed on the front bracket (1), And extending toward the front end of the base (1〇) - eight pedal brackets (51), the pedal bracket (51) is pivotally connected to the cymbal bracket (11), and a pedal (52) is respectively arranged on both sides thereof, and the pedal bracket is respectively provided (51) is connected to the bracket (11) by at least one elastic member (4〇b). As shown in the fourth figure, when the sit-up training machine of the present invention is used, the user rides on the seat cushion (22), and the grip of the grip (31) is held by both hands (31 1)' Abutting against the back massage wheel set (34), the feet are bent and supported on the pedal (52); subsequently, as further shown in the fifth figure, the user hands force the grip (31) to the body The direction is stretched, and the upper body is pressed against the back massage wheel set (34) and the back lever (33) to lean toward the rear side, and the feet are pressed against the pedal (52) and the pedal bracket (51) to gradually straighten. At this time, the bottom end of the grip rod (31) will drive the bottom end of the linkage rod (35) and the back rod (33) to swing toward the front end of the base (10), so that the top end of the back rod (33) swings toward the rear end of the base (1〇). The 'other' pedal bracket (51) swings toward the front end of the base (1〇) while stretching the elastic member (4〇A) (40B); where 'because the tension grip (31) and the pedal bracket ( 51) When the elastic member (40A) (40B) is stretched, the muscle group of the user's hand and foot can be exercised at the same time, so the M377236 number 1 of the elastic member (4〇a) (4〇b) can be used visually. The needs of the person are adjusted to change the intensity of the exercise.
之後’當使用者雙手放鬆並將握桿（31)回推，腹部用 力而預備將上半身向前抬起時，該連接背桿（33)與後支架 (12)的彈性件（4〇A)會拉動該背桿（33)底端、連動桿（35)及 握#(31)底端朝底座（1〇)後端擺動，該連接踏板支架（51)與 前支架（11)的彈性件（40B)則會拉動該踏板支架（51)朝前支 架（11)擺動，使該連動結構（30)的各構件回復至原設定位 置，以令背桿（33)頂端的靠背按摩輪組（34)與握桿（31)頂端 向底座（10)刖端擺動，同時輔助使用者的上半身抬起完 成仰臥起坐之動作，有效避免使用者的頸部或脊柱因過度 用力而受到傷害，該靠背按摩輪組（34)之按摩滾輪（343)則 可在使用者的背部來回滾動，達到按摩之效果。 【圖式簡單說明】 第一圖為本創作前視之立體外觀圖。 第二圖為本創作後視之立體外觀圖。 第三圖為本創作之立體分解圖。 第四圖為本創作於使用狀態之側視圖。 第五圖為本創作於另一使用狀態之側視圖 第六圖為本創作另一實施例之側視圖。 【主要元件符號說明】 (1〇)底座 (1 2)(1 2A)後支架 (122A)外管 (124A)調整孔 (11)前支架 (121A)伸縮管件 (123A)内管 (125A)插銷 M377236 (20)椅座 (21)座椅支架 (22)坐墊 (30)連動結構 (31)握桿 (311)握把 (33)背桿 (34)靠背按摩輪組 (341)承架 (342)支桿 (343)按摩滾輪 (35)連動桿 (40A)(40B)彈性件 (50)踏板組件 (51)踏板支架 (52)踏板After that, when the user relaxes and pushes the grip (31) back, and the abdomen is forced to lift the upper body forward, the elastic member (4〇A) connecting the back lever (33) and the rear bracket (12) The bottom end of the back lever (33), the bottom end of the linkage rod (35) and the grip #(31) are swung toward the rear end of the base (1〇), and the elasticity of the connecting pedal bracket (51) and the front bracket (11) The piece (40B) will pull the pedal bracket (51) to swing toward the front bracket (11), so that the components of the linkage structure (30) are returned to the original set position, so that the backrest massage wheel set at the top end of the back rod (33) (34) swinging with the top end of the grip (31) toward the base (10), and assisting the user's upper body to lift up to complete the sit-up action, effectively preventing the user's neck or spine from being damaged by excessive force. The massage roller (343) of the back massage wheel set (34) can roll back and forth on the back of the user to achieve the massage effect. [Simple description of the diagram] The first picture is a three-dimensional appearance of the front view of the creation. The second picture is a three-dimensional appearance of the rear view of the creation. The third picture is a three-dimensional exploded view of the creation. The fourth picture is a side view of the creation in use. The fifth drawing is a side view of another creation state. The sixth drawing is a side view of another embodiment of the creation. [Main component symbol description] (1〇) base (1 2) (1 2A) rear bracket (122A) outer tube (124A) adjustment hole (11) front bracket (121A) telescopic tube (123A) inner tube (125A) latch M377236 (20) Seat (21) Seat Bracket (22) Seat Cushion (30) Linkage Structure (31) Grip (311) Grip (33) Back Rod (34) Back Massage Wheel Set (341) Shelf (342) ) Strut (343) Massage roller (35) Linkage lever (40A) (40B) Elastic member (50) Pedal assembly (51) Pedal bracket (52) Pedal