TW201817995A

TW201817995A - Clutch mechanism of seat height adjustment device the maximum action angle for adjusting the height at single time can be increased, and the force arm can be ensured to be the same

Info

Publication number: TW201817995A
Application number: TW105135606A
Authority: TW
Inventors: 二瓶正夫; 江季達
Original assignee: 信昌機械廠股份有限公司; 福州明芳汽車部件工業有限公司
Priority date: 2016-11-02
Filing date: 2016-11-02
Publication date: 2018-05-16
Also published as: TWI631292B

Abstract

A clutch mechanism of seat height adjustment device comprises: a drive disk, an input unit, two action sets and an outer cover. The drive disk includes a shaft core, an inner edge and a recessed part located inside the inner edge; the input unit is coaxially disposed inside the recessed part and has an outer edge, and a partition space is formed between the inner edge and the outer edge; the two action sets are disposed in the partition space and symmetrically surrounding the outer edge of the input unit; the outer cover is served to cover correspondingly the recessed part of the drive disk and includes two block members, the two block members are respectively protruded into a location defined between one end and the other end of the two action sets. Accordingly, the maximum action angle for adjusting the height at single time can be increased, and the force arm can be ensured to be the same, so that effects of smooth action and anti-skid can be provided during the adjustment operation.

Description

座椅高低調整裝置的離合機構Clutch mechanism of seat height adjusting device

本發明係有關一種離合機構，特別是指一種座椅高低調整裝置的離合機構。The invention relates to a clutch mechanism, in particular to a clutch mechanism of a seat height adjustment device.

關於座椅的高低調整裝置，例如安裝於汽車的座椅上的高低調整裝置，或例如安裝於按摩椅、輪椅等的高低調整裝置，主要用來調整座椅的高低，以適合不同身高的使用者乘座。Regarding the height adjustment device of the seat, for example, the height adjustment device installed on the seat of a car, or the height adjustment device installed on a massage chair, wheelchair, etc., is mainly used to adjust the height of the seat to suit different heights. Take the seat.

座椅內設置有升降機構，高低調整裝置設置於座椅一側且連接於升降機構，一控制把則連接於高低調整機構，以在使用者向上扳動或向下推動控制把時，能經由高低調整裝置而控制升降機構升降，進而達到調整座椅高低的目的。The seat is provided with a lifting mechanism. The height adjusting device is arranged on one side of the seat and connected to the lifting mechanism. A control handle is connected to the height adjusting mechanism so that when a user pulls or pushes the control handle upward, The height adjustment device controls the elevation of the lifting mechanism, thereby achieving the purpose of adjusting the height of the seat.

高低調整裝置包括彼此同軸配置的一離合機構和一煞車機構，所述控制把則連接於離合機構。現有煞車機構包含：一環體、設置於環體內的一鎖定構件、固定於環體的一底板以及連動於鎖定構件的一輸出軸；現有離合機構則包含：設置並連動於鎖定構件的一驅動構件、同軸設置於驅動構件內的一旋轉構件、配置於驅動構件與旋轉構件之間的三組控制組件以及對應驅動構件罩覆的一外罩，外罩並具有三擋件，各擋件分別單側擋止於各控制組件，各控制組件包含二滾軸和彈性支撐於二滾軸之間的一彈性元件。The height adjustment device includes a clutch mechanism and a brake mechanism arranged coaxially with each other, and the control handle is connected to the clutch mechanism. The existing brake mechanism includes: a ring body, a lock member provided in the ring body, a bottom plate fixed to the ring body, and an output shaft linked to the lock member; the existing clutch mechanism includes: a drive member provided and linked to the lock member. A rotating member coaxially arranged in the driving member, three sets of control components arranged between the driving member and the rotating member, and an outer cover corresponding to the driving member cover. The outer cover has three stoppers, and each stopper is a single side stopper. Ending at each control assembly, each control assembly includes two rollers and an elastic element elastically supported between the two rollers.

由於現有離合機構係配置有三組控制組件，每一控制組件又包含二滾軸和一彈性元件，因此零組件數量偏多、組裝相對過於麻煩且成本亦相對偏高；而且，還會導致各控制組件的最大動作角度偏小(因為三組控制組件平均各120度，扣掉滾軸的口徑、彈性元件的長度以及擋件的寬度…等後，最大動作角度大約僅剩60-80度)，使用者必須經過多次扳動或推動控制把，才能到達所欲調整的高度，除了較為費時，更會導致零組件的易於磨耗、耗損，早為人所詬病已久。Because the existing clutch mechanism is equipped with three sets of control components, each control component also includes two rollers and an elastic element, so the number of components is too large, the assembly is relatively troublesome, and the cost is relatively high; moreover, it will also cause various controls The maximum operating angle of the component is too small (because the three groups of control components average 120 degrees each, after deducting the caliber of the roller, the length of the elastic element, the width of the stopper, etc., the maximum operating angle is only about 60-80 degrees), The user must repeatedly pull or push the control handle to reach the height to be adjusted. In addition to being time-consuming, it will also cause the components to be easily worn and worn, which has been criticized for a long time.

因此，發明人經過研究後，發現可將現有離合機構的三組控制組件改為兩組，即能減少零組件數量並提升最大動作角度。Therefore, after research, the inventor found that the three sets of control components of the existing clutch mechanism can be changed to two sets, which can reduce the number of components and increase the maximum operating angle.

惟，發明人經過實驗後，卻發現單只將三組控制組件改為兩組，反而會使控制組件出現力臂不均問題，進而在施力轉動中導致旋轉構件偏移，使驅動構件和旋轉構件會有作動不順而打滑(slip)的問題。However, after experiments, the inventor found that changing only three sets of control components to two sets will actually cause the control component to have uneven arm problems, which in turn will cause the rotating members to shift during force rotation, causing the driving members and There is a problem in that the rotating member slips due to irregular movement.

因此，如何設計出一種可改善上述缺失的本發明，乃為本案發明人所亟欲解決的一大課題。Therefore, how to design an invention that can improve the above-mentioned shortcomings is a major issue that the inventors of this application want to solve.

本發明的目的在於提供一種座椅高低調整裝置的離合機構，能提升單次高低調整的最大動作角度，並能確保力臂相等，以在調整操作時具有作動順暢且不會打滑的效果。The object of the present invention is to provide a clutch mechanism of a seat height adjustment device, which can increase the maximum action angle of a single height adjustment and ensure that the arms are equal to each other, so as to have the effect of smooth operation and no slippage during adjustment operation.

為了達成上述目的，本發明係提供一種座椅高低調整裝置的離合機構，包括：一驅動盤，具有一軸心、一內緣和位於該內緣之內的一凹陷部；一輸入部件，同軸設置於該凹陷部內且具有一外緣，該內緣與該外緣之間形成一間隔空間；二作用組件，設置於該間隔空間內且彼此對稱地圍繞於該輸入部件的該外緣；以及一外罩，對應該驅動盤的該凹陷部罩覆且具有二擋件，該二擋件分別伸入於該二作用組件的一端之間和該二作用組件的另一端之間。In order to achieve the above object, the present invention provides a clutch mechanism of a seat height adjustment device, including: a drive plate having an axis, an inner edge, and a recessed portion located within the inner edge; an input member, coaxial Disposed in the recessed portion and having an outer edge forming a space between the inner edge and the outer edge; two acting components disposed in the space and surrounding the outer edge of the input member symmetrically to each other; and An outer cover covers the recessed portion corresponding to the driving disc and has two stoppers, the two stoppers respectively extending between one end of the two action components and the other end of the two action components.

相較於先前技術，本發明具有以下功效：能提升單次高低調整的最大動作角度，並能確保力臂相等，以在調整操作時具有作動順暢且不會打滑的效果。Compared with the prior art, the present invention has the following effects: it can increase the maximum action angle of a single height adjustment, and can ensure that the arms are equal, so that during the adjustment operation, it has the effect of smooth operation and no slippage.

有關本發明的詳細說明和技術內容，配合圖式說明如下，然而所附圖式僅提供參考與說明用，非用以限制本發明。The detailed description and technical content of the present invention are described below with reference to the drawings, but the drawings are provided for reference and description only, and are not intended to limit the present invention.

本發明係提供一種座椅高低調整裝置的離合機構，主要用於汽車座椅、按摩椅或輪椅等的高低調整裝置上。如圖1所示，高低調整裝置包括彼此同軸配置的一離合機構100和一煞車機構600，其中，煞車機構600包含一固定架6、一輸出部件7和一環體8，環體8內配置鎖定構件(圖中未示)，輸出部件7設置並與鎖定構件連動，固定架6的一側係固定於環體8並及於離合機構100，固定架6的另一側則固定於汽車座椅、按摩椅或輪椅等，輸出部件7還設置有一輸出驅動齒(未標示元件符號)，輸出驅動齒則與安裝於汽車座椅、按摩椅或輪椅等內的升降機構囓接而帶動。The invention provides a clutch mechanism of a seat height adjustment device, which is mainly used for a height adjustment device of a car seat, a massage chair or a wheelchair. As shown in FIG. 1, the height adjustment device includes a clutch mechanism 100 and a brake mechanism 600 arranged coaxially with each other, wherein the brake mechanism 600 includes a fixing frame 6, an output member 7, and a ring body 8, and the ring body 8 is configured to be locked. The component (not shown), the output member 7 is arranged and linked with the locking member, one side of the fixing frame 6 is fixed to the ring body 8 and the clutch mechanism 100, and the other side of the fixing frame 6 is fixed to the car seat , A massage chair or a wheelchair, etc., the output member 7 is also provided with an output driving tooth (not marked with a component symbol), and the output driving tooth is engaged with a lifting mechanism installed in a car seat, a massage chair, or a wheelchair to drive.

如圖1、圖2和圖3所示，至於本發明的離合機構100則包含一驅動盤1、一輸入部件2、二作用組件3a、3b以及一外罩4，詳述如後。As shown in FIG. 1, FIG. 2 and FIG. 3, as for the clutch mechanism 100 of the present invention, it includes a drive plate 1, an input member 2, two action components 3 a, 3 b and a cover 4, which will be described in detail later.

驅動盤1的一面係設置並連動(圖中未示)煞車機構600的鎖定構件，驅動盤1的另一面則具有一內緣11和位於內緣11之內的一凹陷部12。此外，驅動盤1還具有與煞車機構600的輸出部件7同軸的一軸心X。One side of the driving disc 1 is provided with a locking member (not shown) for locking the braking mechanism 600, and the other side of the driving disc 1 has an inner edge 11 and a recessed portion 12 located within the inner edge 11. In addition, the drive disc 1 also has a single axis X coaxial with the output member 7 of the brake mechanism 600.

輸入部件2(如圖所示可為凸輪狀，但不限制)具有一外緣21，外緣21具有二突部211、212(見圖3)，各突部211、212皆具有呈缺凹狀的一端和另一端(見圖3)。輸入部件2係同軸設置於凹陷部12內，使外緣21與前述內緣11之間形成環繞狀的一間隔空間13。此外，控制把(圖中未示)係透過後述外罩4連接於輸入部件2的軸心處。The input member 2 (which can be cam-shaped as shown, but is not limited) has an outer edge 21, and the outer edge 21 has two protrusions 211 and 212 (see FIG. 3), and each of the protrusions 211 and 212 has a defect. Concave end and other end (see Figure 3). The input member 2 is coaxially disposed in the recessed portion 12 so that a space 13 is formed between the outer edge 21 and the inner edge 11 in a surrounding shape. In addition, a control handle (not shown) is connected to the shaft center of the input member 2 through a cover 4 to be described later.

二作用組件3a、3b係設置於間隔空間13內，並使二作用組件3a、3b彼此對稱地圍繞於輸入部件2的外緣21。The two-acting components 3 a and 3 b are arranged in the space 13, and the two-acting components 3 a and 3 b surround the outer edge 21 of the input member 2 symmetrically to each other.

於本實施例中，二作用組件係為一第一作用組件3a和一第二作用組件3b。其中，第一作用組件3a包含一第一彈性元件35以及分別抵接於第一彈性元件35之頭端和尾端的一第一滾動圓軸31和一第二滾動圓軸32；第二作用組件3b包含一第二彈性元件36以及分別抵接於第二彈性元件36之頭端和尾端的一第三滾動圓軸33和一第四滾動圓軸34。第一、三滾動圓軸31、33彼此間隔相鄰，第二、四滾動圓軸32、34亦彼此間隔相鄰，且如圖3所示，第一滾動圓軸31之軸心與第四滾動圓軸34之軸心的連線C1係通過前述軸心X，第二滾動圓軸32之軸心與第三滾動圓軸33之軸心的連線C2亦通過前述軸心X。In this embodiment, the two acting components are a first acting component 3a and a second acting component 3b. Wherein, the first acting component 3a includes a first elastic element 35 and a first rolling circle shaft 31 and a second rolling circle shaft 32 respectively abutting the head end and the tail end of the first elastic element 35; the second acting component 3b includes a second elastic element 36 and a third rolling circle shaft 33 and a fourth rolling circle shaft 34 abutting on the head end and the tail end of the second elastic element 36, respectively. The first and third rolling circular axes 31 and 33 are adjacent to each other, and the second and fourth rolling circular axes 32 and 34 are also adjacent to each other. As shown in FIG. 3, the axis of the first rolling circular axis 31 and the fourth The connection line C1 of the axis of the rolling circular axis 34 passes through the aforementioned axis X, and the connection line C2 of the axis of the second rolling circular axis 32 and the axis of the third rolling axis 33 also passes through the aforementioned axis X.

外罩4具有沿軸心X方向凸伸的二擋件41、42，二擋件41、42係用以擋止第一、二作用組件3a、3b中的第一、四滾動圓軸31、34或第二、三滾動圓軸32、33。外罩4係對應驅動盤1的凹陷部12罩覆，使二擋件41、42分別伸入於彼此間隔相鄰的第一、三滾動圓軸31、33之間以及彼此間隔相鄰的第二、四滾動圓軸32、34之間。The outer cover 4 has two stoppers 41 and 42 protruding along the axis X direction. The two stoppers 41 and 42 are used to stop the first and fourth rolling circular shafts 31 and 34 of the first and second action components 3a and 3b. Or the second and third scroll round shafts 32, 33. The outer cover 4 covers the recessed portion 12 corresponding to the drive disk 1 so that the second stoppers 41 and 42 respectively extend between the first and third rolling circular shafts 31 and 33 adjacent to each other and the second adjacent two spaced apart from each other. , Between four rolling round shafts 32,34.

如圖3所示，第一、三滾動圓軸31、33分別限位於其中一突部211之呈缺凹狀的一端和另一端內，第二、四滾動圓軸32、34則分別限位於其中另一突部212之呈缺凹狀的一端和另一端內，因此，在操作控制把(圖未示)而帶動輸入部件2進行例如順時針方向旋轉時，第一作用組件3a將只有第二滾動圓軸32被突部212帶動(參圖5)，第一滾動圓軸31則被擋件41擋止而不動；第二作用組件3b亦只有第三滾動圓軸33被突部211帶動(參圖5)，第四滾動圓軸34則被擋件42擋止而不動。As shown in FIG. 3, the first and third rolling round shafts 31 and 33 are respectively limited to one end and the other end of one of the protrusions 211, and the second and fourth rolling round shafts 32 and 34 are respectively limited to One of the other protrusions 212 has a recessed end and the other end. Therefore, when the control member (not shown) is operated to drive the input member 2 to rotate clockwise, for example, the first action component 3a will only have the first The second rolling round shaft 32 is driven by the protrusion 212 (see FIG. 5), and the first rolling round shaft 31 is stopped by the stopper 41; only the third rolling round shaft 33 of the second action component 3b is driven by the protrusion 211. (See FIG. 5), the fourth rolling circular shaft 34 is stopped by the stopper 42 without moving.

必須說明的是，由於第一、二作用組件3a、3b彼此對稱地圍繞於輸入部件2的外緣21，以使第一、四滾動圓軸31、34之軸心的連線C1以及第三、二滾動圓軸33、32之軸心的連線C2皆通過前述軸心X，如此一來，第一、二作用組件3a、3b的力臂皆相等(沒有力臂不均的問題)，使第一、二、三、四滾動圓軸31、32、33、34中不會有任何一顆原本不應接觸前述內緣11的滾動圓軸，會受迫誤接觸內緣11和外緣21而產生摩擦阻力，並因此而導致作動不順和打滑的現象。換言之，設計為對稱型式的二作用組件(如圖1-圖5)相較於設計為非對稱型式的二作用組件(如圖6-圖8)，非對稱型式的二作用組件將會因為力臂不均而使驅動盤1和輸入部件2會有作動不順以及打滑(slip)的問題。It must be noted that, because the first and second action components 3a and 3b are symmetrically surrounded with each other on the outer edge 21 of the input member 2, the connection lines C1 and the third of the axes of the first and fourth rolling circular axes 31 and 34 are made. The connection C2 of the axes of the two and two rolling circular axes 33 and 32 passes through the aforementioned axis X. In this way, the arms of the first and second acting components 3a and 3b are equal (there is no problem of uneven arms). No one of the first, second, third, and fourth rolling round shafts 31, 32, 33, and 34 should be in contact with the rolling shaft of the inner edge 11 described above, and will be forced to contact the inner edge 11 and the outer edge by mistake. 21 causes frictional resistance, which results in irregular movement and slippage. In other words, a two-acting component designed as a symmetrical type (as shown in Figures 1-5) is compared with a two-acting component designed as an asymmetric type (as shown in Figures 6-8). The uneven arms cause the drive disk 1 and the input member 2 to malfunction and slip.

以下分別就本發明中之二作用組件設計為對稱型式和非對稱型式配合圖式加以說明。The following describes the design of the two acting components in the present invention as symmetrical and asymmetrical patterns.

如圖4和圖5所示係為本發明中之對稱式二作用組件的動作前、後示意圖。Figures 4 and 5 are schematic diagrams of the front and rear actions of the symmetrical two-acting component in the present invention.

如圖4並搭配圖3所示，第一-四滾動圓軸31-34分別與輸入部件2的外緣21以及驅動盤1的內緣11接觸，使每一滾動圓軸各具二接觸點T1、T2(見圖4)，驅動盤1之內緣11的直徑定義為LC。此時，任一對角之相對二滾動圓軸(第一、四滾動圓軸31、34或第二、三滾動圓軸32、33)對於內緣11之接觸點T1的連線係定義為L1，由於滾動圓軸(31-34)之間係彼此對稱，因此L1必然會通過前述軸心X，且L1的長度也必然會等於LC的長度(L1=LC)。As shown in FIG. 4 and shown in FIG. 3, the first to fourth rolling round shafts 31 to 34 are respectively in contact with the outer edge 21 of the input member 2 and the inner edge 11 of the driving disc 1, so that each rolling round shaft has two contact points. T1, T2 (see FIG. 4), the diameter of the inner edge 11 of the drive disk 1 is defined as LC. At this time, the connection line of the opposite two rolling circle axes (the first and fourth rolling circle axes 31 and 34 or the second and third rolling circle axes 32 and 33) of any diagonal to the contact point T1 of the inner edge 11 is defined as L1, because the rolling circular axes (31-34) are symmetrical to each other, so L1 will inevitably pass through the aforementioned axis X, and the length of L1 will also be equal to the length of LC (L1 = LC).

如圖5並搭配圖3所示，當輸入部件2朝順時針方向轉動α角度時，由於第二、三滾動圓軸32、33與前述的內緣11和外緣21保持在接觸囓合狀態，因此，輸入部件2將會推動第二、三滾動圓軸32、33與驅動盤1一起轉動α角度。此時，第一、四滾動圓軸31、34由於受到二擋件41、42的擋止而停留在原處不動，且還會因為輸入部件2本身的外形設計，而使得第一、四滾動圓軸31、34與前述的內緣11和外緣21之間皆產生間隙(見圖5中以小圓圈Q予以圈圍起來的部分)。As shown in FIG. 5 and shown in FIG. 3, when the input member 2 is rotated by an angle α in a clockwise direction, since the second and third rolling circular shafts 32 and 33 and the aforementioned inner edge 11 and outer edge 21 are maintained in a contact meshing state, Therefore, the input member 2 will push the second and third rolling circular shafts 32 and 33 to rotate with the driving disk 1 by an angle α. At this time, the first and fourth rolling circle shafts 31 and 34 stay in place because they are blocked by the second stoppers 41 and 42, and because of the external design of the input part 2, the first and fourth rolling circle shafts are made. A gap is generated between the shafts 31 and 34 and the aforementioned inner edge 11 and outer edge 21 (see the portion enclosed by a small circle Q in FIG. 5).

如圖4、圖5所示，當開始順時針方向轉動時，由於第二、三滾動圓軸32、33彼此對稱，L1又通過軸心X且相等於LC，因此，力臂皆相等，第二、三滾動圓軸32、33與輸入部件2無論受到哪一方向的力，都無法往圖5的左上或右下移動，這是因為直徑(LC)已是驅動盤1之內緣11的最長直線，當然無法朝較短的方向移動。如此一來，輸入部件2就會保持在軸心X的位置轉動，驅動盤1也能同步轉動，進而在轉動時具有不易於發生力的損失(loss)的效果。As shown in Figures 4 and 5, when the clockwise rotation is started, the second and third rolling circular axes 32 and 33 are symmetrical to each other, and L1 passes through the axis X and is equal to LC. Therefore, the force arms are equal. No matter which direction the two or three rolling circular shafts 32, 33 and the input member 2 are subjected to, they cannot move to the upper left or lower right of FIG. 5, because the diameter (LC) is already the inner edge 11 of the drive disk 1. The longest straight line, of course, cannot move in a shorter direction. In this way, the input member 2 will be kept rotating at the position of the axis X, and the drive disk 1 can also be rotated synchronously, thereby having the effect that it is difficult to generate force loss during rotation.

如圖6和圖7所示則為本發明中之二作用組件若設計為非對稱型式時的動作前、後示意圖。As shown in FIG. 6 and FIG. 7, it is a schematic diagram of the front and rear movements of the two acting components in the present invention if they are designed to be asymmetrical.

如圖6並搭配圖3所示，第一-四滾動圓軸31-34分別與輸入部件2的外緣21以及驅動盤1的內緣11接觸，使每一滾動圓軸各具二接觸點T1、T2(見圖6)，且對於LC和L1的定義係與前述對稱型式相同。此時，由於滾動圓軸(31-34)之間係彼此非對稱，因此L1必然不會通過前述軸心X，因此力臂不均，且L1的長度也必然小於LC的長度(L1＜LC)。As shown in FIG. 6 and shown in FIG. 3, the first to fourth rolling round shafts 31 to 34 are respectively in contact with the outer edge 21 of the input member 2 and the inner edge 11 of the driving disc 1, so that each rolling round shaft has two contact points. T1, T2 (see Fig. 6), and the definitions of LC and L1 are the same as the aforementioned symmetrical pattern. At this time, because the rolling circular axes (31-34) are asymmetric to each other, L1 must not pass through the aforementioned axis X, so the arm is uneven, and the length of L1 must be less than the length of LC (L1 <LC ).

如圖7並搭配圖3所示，當輸入部件2朝順時針方向先小幅轉動α1角度時(此時驅動盤1尚未轉動)，第二、三滾動圓軸32、33與前述的內緣11和外緣21保持在接觸囓合狀態，此時第一、四滾動圓軸31、34由於受到二擋件41、42的擋止而停留在原處不動，且還會因為輸入部件2本身的外形設計，而使得第一、四滾動圓軸31、34與前述的內緣11和外緣21之間皆產生間隙(見圖7中以小圓圈Q予以圈圍起來的部分)。As shown in FIG. 7 and shown in FIG. 3, when the input member 2 is first rotated slightly by an angle α1 in a clockwise direction (at this time, the drive disk 1 has not yet been rotated), the second and third rolling round shafts 32 and 33 and the aforementioned inner edge 11 Keep in contact with the outer edge 21, at this time, the first and fourth rolling round shafts 31, 34 stay in place because they are stopped by the second stoppers 41, 42, and because of the shape design of the input part 2 itself As a result, a gap is generated between the first and fourth rolling circular shafts 31 and 34 and the aforementioned inner edge 11 and outer edge 21 (see a portion enclosed by a small circle Q in FIG. 7).

如圖8並搭配圖3所示，當輸入部件2朝順時針方向繼續小幅轉動時(尚未達α2角度，此處所述的角度於圖8中僅為示意)，由於L1＜LC，因此L1將會因為物理特性而朝LC的方向移動(見圖8中標示為A的箭頭)，於是，輸入部件2的軸心X就會跟著向右下移動而形成一偏移軸心X1，此時，第四滾動圓軸34和第二、三滾動圓軸32、33相同：皆與前述的內緣11和外緣21呈現接觸囓合狀態(見圖8)。As shown in FIG. 8 and shown in FIG. 3, when the input part 2 continues to rotate slightly in the clockwise direction (the angle of α2 has not yet been reached, the angle described here is only for illustration in FIG. 8), because L1 <LC, so L1 It will move in the direction of LC due to the physical characteristics (see the arrow labeled A in Figure 8), so the axis X of the input part 2 will move to the lower right to form an offset axis X1. At this time, The fourth rolling circle shaft 34 is the same as the second and third rolling circle shafts 32 and 33: they are in contact with the aforementioned inner edge 11 and outer edge 21 (see FIG. 8).

仍如圖8所示，當輸入部件2朝順時針方向再繼續小幅轉動且轉動到α2角度時(α1＜α2，此處所述的角度於圖8中僅為示意)，由於第二、三、四滾動圓軸32、33、34如上述皆為接觸囓合狀態而使驅動盤1開始跟著轉動。但因為第四滾動圓軸34除了與前述的內緣11和外緣21接觸，還會受到擋件42的擋止而無法移動，因此，在輸入部件2繼續轉動的情況下，第四滾動圓軸34將會因為本身無法移動而對輸入部件2和驅動盤1產生摩擦阻力，進而導致驅動盤1和輸入部件2會有作動不順而打滑(slip)的現象。Still as shown in FIG. 8, when the input part 2 continues to rotate slightly in the clockwise direction and rotates to the angle α2 (α1 <α2, the angle described here is only a schematic in FIG. 8). As mentioned above, the four rolling circular shafts 32, 33, and 34 are all in the state of contact and engagement, so that the driving disk 1 starts to rotate. However, because the fourth rolling circle shaft 34 is in contact with the inner edge 11 and the outer edge 21 described above, it cannot be moved by the stopper 42. Therefore, when the input member 2 continues to rotate, the fourth rolling circle 34 The shaft 34 will cause frictional resistance to the input member 2 and the drive plate 1 because it cannot move itself, which will cause the drive plate 1 and the input member 2 to slip and slip.

因此，當輸入部件2從初始狀態開始轉動到最大作動角度時，驅動盤1的轉動角度將會小於輸入部件2的轉動角度(無法同步轉動)，也就是在高度調整上的輸出角度會小於輸入角度，且驅動盤1和輸入部件2還會有作動不順而打滑(slip)的情況發生。Therefore, when the input member 2 is rotated from the initial state to the maximum operating angle, the rotation angle of the drive plate 1 will be smaller than the rotation angle of the input member 2 (the rotation cannot be synchronized), that is, the output angle in height adjustment will be smaller than the input And the drive disc 1 and the input member 2 may slip and slip.

綜上所述，本發明相較於先前技術係具有以下功效：能提升單次高低調整的最大動作角度(兩組作用組件3a、3b平均各180度，扣掉滾動圓軸的口徑、彈性元件的長度以及擋件的寬度…等後，本發明的最大動作角度將能擴大至大約130-150度)，並能確保力臂相等，以在調整操作時讓驅動盤1和輸入部件2具有作動順暢(不會有任何一顆原本應與內、外緣11、21保持間隔的滾動圓軸，會受迫誤接觸內、外緣11、21而對驅動盤1和輸入部件2造成摩擦阻力)而不會打滑的效果。In summary, compared with the prior art, the present invention has the following effects: it can increase the maximum action angle of a single height adjustment (average of 180 degrees each of the two sets of action components 3a, 3b, deducting the diameter of the rolling round shaft, the elastic element After the length of the stopper and the width of the stopper, etc., the maximum operating angle of the present invention can be extended to about 130-150 degrees), and the arms can be ensured to be equal, so that the drive disk 1 and the input member 2 can act during the adjustment operation. Smooth (There will not be any rolling round shaft that should be kept apart from the inner and outer edges 11, 21, and will be forced to contact the inner and outer edges 11, 21 by mistake to cause frictional resistance to the drive plate 1 and the input member 2) Without slipping effect.

此外，本發明還具有其它功效：能提升控制把(圖中未示)在操作時的順暢性和手感。並能因為離合機構100僅配置二作用組件3a、3b而能減少零組件的數量。In addition, the present invention also has other effects: it can improve the smoothness and feel of the control handle (not shown) during operation. And because the clutch mechanism 100 is provided with only the two acting components 3a, 3b, the number of components can be reduced.

以上所述者，僅為本發明之較佳可行實施例而已，非因此即侷限本發明之專利範圍，舉凡運用本發明說明書及圖式內容所為之等效結構變化，均理同包含於本發明之權利範圍內，合予陳明。The above are only the preferred and feasible embodiments of the present invention, and therefore do not limit the scope of the patent of the present invention. Any equivalent structural changes made by using the description and drawings of the present invention are equally included in the present invention. Within the scope of the rights, Chen Ming was conferred.

100‧‧‧離合機構100‧‧‧ Clutch

1‧‧‧驅動盤1‧‧‧Drive Disk

11‧‧‧內緣11‧‧‧ inner edge

12‧‧‧凹陷部12‧‧‧ Depression

13‧‧‧間隔空間13‧‧‧ Space

2‧‧‧輸入部件2‧‧‧ input parts

21‧‧‧外緣21‧‧‧ outer edge

211、212‧‧‧突部211, 212‧‧‧ protrusion

3a‧‧‧第一作用組件3a‧‧‧First acting component

3b‧‧‧第二作用組件3b‧‧‧Second-action component

31‧‧‧第一滾動圓軸31‧‧‧The first rolling circle axis

32‧‧‧第二滾動圓軸32‧‧‧Second scroll axis

33‧‧‧第三滾動圓軸33‧‧‧ the third rolling circle

34‧‧‧第四滾動圓軸34‧‧‧Fourth scroll axis

35‧‧‧第一彈性元件35‧‧‧first elastic element

36‧‧‧第二彈性元件36‧‧‧Second elastic element

4‧‧‧外罩4‧‧‧ Cover

41、42‧‧‧擋件41, 42‧‧‧ Blocks

X‧‧‧軸心X‧‧‧ axis

X1‧‧‧偏移軸心X1‧‧‧Offset axis

C1、C2‧‧‧連線C1, C2‧‧‧ Connect

LC‧‧‧驅動盤之內緣的直徑LC‧‧‧ diameter of inner edge of drive plate

L1‧‧‧二滾動圓軸之接觸點間的連線長度L1‧‧‧Second line length between the contact points of the rolling axis

T1、T2‧‧‧接觸點T1, T2‧‧‧ contact points

600‧‧‧煞車機構600‧‧‧Brake mechanism

6‧‧‧固定架6‧‧‧ fixed frame

7‧‧‧輸出部件7‧‧‧ Output parts

8‧‧‧環體8‧‧‧ ring body

圖1 為本發明離合機構的立體分解圖。FIG. 1 is an exploded perspective view of a clutch mechanism of the present invention.

圖2 為本發明依據圖1於組合後的透視示意圖。FIG. 2 is a schematic perspective view of the present invention after being assembled according to FIG. 1.

圖3 為本發明離合機構於組合後的剖視圖(動作前)。Fig. 3 is a sectional view (before operation) of the clutch mechanism of the present invention after assembly.

圖4 為本發明中之二作用組件設計為對稱型式時的動作前剖視示意圖。FIG. 4 is a schematic cross-sectional view before operation when the second action component in the present invention is designed as a symmetrical type.

圖5 為本發明依據圖4於動作後的剖視示意圖。FIG. 5 is a schematic cross-sectional view of the present invention after the operation according to FIG. 4.

圖6 為本發明中之二作用組件若設計為非對稱型式時的動作前剖視示意圖。FIG. 6 is a schematic cross-sectional view of the action of the second acting component in the present invention when it is designed as an asymmetrical type.

圖7 為本發明依據圖6於動作後的剖視示意圖(一)。FIG. 7 is a schematic cross-sectional view (1) of the present invention after the operation according to FIG. 6.

圖8 為本發明依據圖6於動作後的剖視示意圖(二)。FIG. 8 is a schematic cross-sectional view (2) of the present invention after the operation according to FIG. 6.

Claims

一種座椅高低調整裝置的離合機構，包括：　　一驅動盤，具有一軸心、一內緣和位於該內緣之內的一凹陷部；　　一輸入部件，同軸設置於該凹陷部內且具有一外緣，該內緣與該外緣之間形成一間隔空間；　　二作用組件，設置於該間隔空間內且彼此對稱地圍繞於該輸入部件的該外緣；以及　　一外罩，對應該驅動盤的該凹陷部罩覆且具有二擋件，該二擋件分別伸入於該二作用組件的一端之間和該二作用組件的另一端之間。A clutch mechanism for a seat height adjustment device includes: (1) a drive plate having an axis, an inner edge, and a recessed portion located within the inner edge; (1) an input member coaxially disposed in the recessed portion and having an outer portion Edge, the inner edge and the outer edge form a space; a second action component, which is disposed in the space and surrounds the outer edge of the input component symmetrically to each other; and a cover corresponding to the drive disk. The recessed part is covered and has two stoppers, the two stoppers respectively extend between one end of the two action components and the other end of the two action components.

如請求項1所述之座椅高低調整裝置的離合機構，其中各該作用組件包含二滾動圓軸和彈性支撐於該二滾動圓軸之間的一彈性元件。The clutch mechanism of the seat height adjustment device according to claim 1, wherein each of the action components includes two rolling circular shafts and an elastic element elastically supported between the two rolling circular shafts.

如請求項2所述之座椅高低調整裝置的離合機構，其中該輸入部件的該外緣具有二突部，各該突部具有一端和另一端，其中之一該作用組件的該二滾動圓軸係分別限位於該二突部的該一端，其中另一該作用組件的該二滾動圓軸則分別限位於該二突部的該另一端。The clutch mechanism of the seat height adjustment device according to claim 2, wherein the outer edge of the input member has two protrusions, each of the protrusions has one end and the other end, and one of the two rolling circles of the active component The shaft system is respectively limited to the one end of the two protrusions, and the two rolling circular shafts of the other active component are respectively limited to the other end of the two protrusions.

如請求項2所述之座椅高低調整裝置的離合機構，其中該二擋件的其中之一係位於各該作用組件的其中之一該滾動圓軸之間，該二擋件的其中另一則位於各該作用組件的其中另一該滾動圓軸之間。The clutch mechanism of the seat height adjustment device according to claim 2, wherein one of the two stops is located between one of the active components and the rolling shaft, and the other of the two stops is It is located between the other rolling axis of each of the action components.

如請求項2所述之座椅高低調整裝置的離合機構，其中各該作用組件的該二滾動圓軸係包含一滾動圓軸和另一滾動圓軸；其中之一該作用組件的該一滾動圓軸與其中另一該作用組件的該另一滾動圓軸之軸心的連線係通過該驅動盤的該軸心；其中之一該作用組件的該另一滾動圓軸與其中另一該作用組件的該一滾動圓軸之軸心的連線亦通過該驅動盤的該軸心。The clutch mechanism of the seat height adjustment device according to claim 2, wherein the two rolling circular shaft systems of each of the active components include a rolling circular shaft and another rolling circular shaft; one of the one rolling of the active component The connection between the circular axis and the axis of the other rolling circle of the other active component passes through the axis of the drive disc; one of the other rolling circle of the active component and the other of the The connection of the axis of the rolling axis of the active component also passes through the axis of the driving disc.

如請求項1所述之座椅高低調整裝置的離合機構，其中該二作用組件係為一第一作用組件和一第二作用組件，該第一作用組件包含一第一彈性元件和分別抵接於該第一彈性元件之頭端和尾端的一第一滾動圓軸和一第二滾動圓軸，該第二作用組件包含一第二彈性元件和分別抵接於該第二彈性元件之頭端和尾端的一第三滾動圓軸和一第四滾動圓軸，該第一和該第三滾動圓軸係彼此間隔相鄰，該第二和該第四滾動圓軸亦彼此間隔相鄰，該第一滾動圓軸與該第四滾動圓軸之軸心的連線係通過該驅動盤的該軸心，該第三滾動圓軸與該第二滾動圓軸之軸心的連線亦通過該驅動盤的該軸心。The clutch mechanism of the seat height adjustment device according to claim 1, wherein the two action components are a first action component and a second action component, and the first action component includes a first elastic element and abutting respectively A first rolling circle shaft and a second rolling circle shaft at the head end and the tail end of the first elastic element, the second action component includes a second elastic element and the head end of the second elastic element respectively abuts And a third rolling circle shaft and a fourth rolling circle shaft at the rear end, the first and the third rolling circle shaft systems are adjacent to each other spaced apart, the second and the fourth rolling circle shafts are also spaced adjacent to each other, the The connection between the axis of the first rolling axis and the axis of the fourth rolling axis passes through the axis of the drive disc, and the connection of the axis of the third rolling axis and the axis of the second rolling axis also passes through the axis. This axis of the drive disk.

如請求項6所述之座椅高低調整裝置的離合機構，其中該輸入部件的該外緣具有二突部，各該突部具有兩端，該第一滾動圓軸和該第三滾動圓軸分別限位於其中一該突部的兩端，該第二滾動圓軸和該第四滾動圓軸則分別限位於其中另一該突部的兩端。The clutch mechanism of the seat height adjustment device according to claim 6, wherein the outer edge of the input member has two protrusions, each of the protrusions has two ends, the first rolling circle shaft and the third rolling circle shaft The second rolling circle shaft and the fourth rolling circle shaft are respectively located at two ends of one of the protrusions, respectively.

如請求項6所述之座椅高低調整裝置的離合機構，其中之一該擋件係位於該第一與第三滾動圓軸之間，其中另一該擋件則位於該第二與第四滾動圓軸之間。The clutch mechanism of the seat height adjusting device according to claim 6, wherein one of the stoppers is located between the first and third rolling round shafts, and the other of the stoppers is located between the second and fourth rolling shafts. Scroll between the axes.