TWI628373B - Automatic compensation device for drum brake free clearance - Google Patents
Automatic compensation device for drum brake free clearance Download PDFInfo
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- TWI628373B TWI628373B TW106122875A TW106122875A TWI628373B TW I628373 B TWI628373 B TW I628373B TW 106122875 A TW106122875 A TW 106122875A TW 106122875 A TW106122875 A TW 106122875A TW I628373 B TWI628373 B TW I628373B
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- rocker arm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/42—Slack adjusters mechanical non-automatic
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
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Abstract
一種銜接煞車導線與煞車搖臂組件的鼓煞自由間隙自動補償裝置，自動補償裝置包含：固定座、外殼、連接滑座與轉動導引機構；其外殼樞設於固定座；連接滑座可在外殼內徑腔室自由移動，其一端面嵌設一單向軸承，並以單向軸承之嵌套調整螺桿，連接滑座另一端面具有一連接該煞車導線的連接部；轉動導引機構將互相對應嵌套的導銷和包含直槽與斜槽之導槽分別設置於外殼與連接滑座上；自動補償裝置根據煞車導線的拉力到達一預定值時，使連接滑座旋轉一角度以轉動調整螺桿，進而加大煞車搖臂初始狀態時的偏擺角度，以自動補償擴大的鼓煞自由間隙。 An automatic compensation device for a drum brake free gap connecting a brake wire and a brake rocker arm assembly, the automatic compensation device includes: a fixed seat, a housing, a connecting slide seat and a rotation guide mechanism; the housing is pivoted on the fixed seat; The inner diameter chamber of the housing is free to move. One end of the housing is embedded with a one-way bearing, and the one-way bearing is nested to adjust the screw. The other end of the connecting slide is provided with a connection portion for connecting the brake wire. The rotation guide mechanism will Guide pins corresponding to each other and guide grooves including straight grooves and inclined grooves are respectively arranged on the housing and the connecting slide; when the automatic compensation device reaches a predetermined value according to the pulling force of the brake wire, the connecting slide is rotated by an angle to rotate Adjust the screw to increase the deflection angle of the brake rocker in the initial state to automatically compensate for the increased free brake drum clearance.
Description
本發明係有關於一種煞車自由間隙的自動補償裝置，特別是有關於一種鼓式煞車的自由間隙之維持煞車系統。 The present invention relates to an automatic compensation device for free clearance of brakes, and more particularly to a maintenance system for maintaining free clearance of drum brakes.
習用鼓式煞車具有良好的自煞作用，且在產生相同煞車力矩的條件下，鼓式煞車之煞車鼓的直徑可以較碟式煞車之煞車碟的直徑小上許多，加上鼓式煞車具有零件成本低廉與維修方便等諸多優點，使得鼓式煞車被廣泛運用於汽車、機車、自行車或其它各式車輛的煞車系統當中。值得注意的是，鼓式煞車容易隨著煞車次數增加而造成其煞車蹄片磨耗，使得煞車蹄片與煞車鼓的間距擴大，遂導致用以帶動煞車蹄片之煞車線必須被拉動更長的距離才能使煞車蹄片接觸摩擦煞車鼓，換言之，使用者拉動煞車拉桿或踩踏煞車踏板之行程必須延長，方可獲得與煞車蹄片未磨耗前相同之煞車力。 The conventional drum brake has a good self-braking effect, and under the condition of generating the same braking torque, the diameter of the brake drum of the drum brake can be much smaller than the diameter of the brake disc of the disc brake, plus the drum brake has parts Many advantages such as low cost and easy maintenance make drum brakes widely used in brake systems of automobiles, locomotives, bicycles, or other various vehicles. It is worth noting that drum brakes are prone to wear of the brake shoes as the number of brakes increases, which increases the distance between the brake shoes and the brake drum, which results in the brake line used to drive the brake shoes must be pulled longer. The distance can make the brake shoe contact the friction brake drum. In other words, the stroke of the user pulling the brake lever or depressing the brake pedal must be extended to obtain the same braking force as before the brake shoe is worn.
中華民國專利公告第549283號專利案揭示一種鼓式煞車裝置1，請參照圖1A所示，該鼓式煞車裝置1，包含一煞車把手11、一煞車單元12及一煞車線13，該煞車線13分別連接該煞車把手11及一螺桿131。其中，該煞車單元12包含一擺臂121，該擺臂121係樞接於該螺桿131並且透過一螺帽122定位，該螺帽122係螺合於該螺桿131。藉此，當使用者拉動該煞車把手11時，將一併帶動與該煞車把手11相連接之煞車線13，使得螺合於該螺桿131之螺帽122隨著該煞車線13產生位移並抵壓該擺臂121，因此，該擺臂121將可驅動煞車蹄片(圖未繪示)向外撐開，以抵壓安裝於車輛輪圈之 煞車鼓，進而產生煞車力。 The Republic of China Patent Publication No. 549283 discloses a drum brake device 1. Please refer to FIG. 1A. The drum brake device 1 includes a brake handle 11, a brake unit 12, and a brake line 13. The brake line 13 is connected to the brake handle 11 and a screw 131 respectively. Wherein, the braking unit 12 includes a swing arm 121 which is pivotally connected to the screw 131 and positioned through a nut 122 which is screwed to the screw 131. As a result, when the user pulls the brake handle 11, the brake line 13 connected to the brake handle 11 is also driven, so that the nut 122 screwed to the screw 131 is displaced with the brake line 13 and offsets. Press the swing arm 121, so the swing arm 121 will drive the brake shoe (not shown) to spread outward to press against the Brake drum, which in turn generates braking force.
隨著使用時間的增加，所述煞車蹄片係逐漸磨損，使得煞車蹄片與煞車鼓的間距擴大，導致使用者必須拉動該煞車把手11之行程必須延長，方能使得煞車蹄片與煞車鼓發生接觸而產生煞車效果。據此，該習用鼓式煞車裝置1需仰賴人力旋動該螺帽122，迫使該擺臂121朝該煞車線13移動來將煞車蹄片略微向外撐開，使煞車蹄片與煞車鼓的間距形成與煞車蹄片尚未磨損前相同之準位，以維持該習用鼓式煞車裝置1之煞車效果。 As the service time increases, the brake shoe system gradually wears out, so that the distance between the brake shoe system and the brake drum is enlarged. As a result, the stroke that the user must pull the brake handle 11 must be extended to make the brake shoe system and the brake drum. Brake effect due to contact. According to this, the conventional drum brake device 1 needs to manually rotate the nut 122 to force the swing arm 121 to move toward the brake line 13 to slightly open the brake shoe outward, so that the brake shoe and the brake drum The spacing is formed at the same level as before the brake shoe is worn, so as to maintain the braking effect of the conventional drum brake device 1.
然而，對於不熟悉車輛維護之使用者而言，通常係仰賴專業維修人員調整該螺帽122，因而無法在煞車蹄片係發生磨損後及時經由該螺帽122對該擺臂121進行迫緊調整，使得車輛之煞車力不足而造成煞車距離大幅增加，嚴重危害車輛之行駛安全性。再者，維修人員為了避免上述情形發生，時常替使用者大幅度旋動該螺帽122以將煞車蹄片與煞車鼓的間距縮到很小，讓該習用鼓式煞車裝置1在煞車蹄片磨損後仍能保有一定的煞車效果。惟，煞車蹄片與煞車鼓的間距過小會造成煞車操作過於靈敏，一旦使用者不小心觸動該煞車拉桿11之時，就可能產生不可預期的煞車行為(例如：輪胎鎖死打滑)而發生的意外。 However, for users who are unfamiliar with vehicle maintenance, it is usually dependent on professional maintenance personnel to adjust the nut 122, so it is impossible to urgently adjust the swing arm 121 through the nut 122 after the brake shoe system wears out. In this way, the braking force of the vehicle is insufficient and the braking distance is greatly increased, which seriously endangers the driving safety of the vehicle. Furthermore, in order to avoid the above situation, maintenance personnel often rotate the nut 122 largely for the user to reduce the distance between the brake shoe and the brake drum to a small extent, so that the conventional drum brake device 1 is placed on the brake shoe. It can still maintain a certain braking effect after wearing. However, if the distance between the brake shoe and the brake drum is too small, the brake operation will be too sensitive. Once the user accidentally touches the brake lever 11, an unexpected braking behavior may occur (for example, the tire is locked and slipped). accident.
為了解決上述問題，中華民國專利公告第549283號專利案另揭示了一種習用煞車自動調整裝置2，請參照圖1B所示，其可以應用於前述習用鼓式煞車裝置1當中，該習用煞車自動調整裝置2包含一觸動開關21、一動力源22一齒輪組23及一控制單元24。該觸動開關21與該煞車把手21相連設；該動力源22固定於該煞車單元22之擺臂221；該齒輪組23包含相互嚙合之一第一齒輪件231及一第二齒輪件232，該第一齒輪件231結合於該動力源22上並直接受到該動力源22所驅動，該第二齒輪件232係結合該煞車單元12之螺帽122，且該第二齒輪件232與該螺帽122是彼此連固呈現一體聯動的狀態。該控制單元24分別耦接該觸動開關21及該動力源22。 In order to solve the above problems, the Republic of China Patent Publication No. 549283 also discloses a conventional automatic brake adjusting device 2. Please refer to FIG. 1B, which can be applied to the conventional conventional drum brake device 1. The conventional automatic brake adjusting device 2 The device 2 includes a touch switch 21, a power source 22, a gear set 23, and a control unit 24. The touch switch 21 is connected to the brake handle 21; the power source 22 is fixed to the swing arm 221 of the brake unit 22; the gear set 23 includes a first gear member 231 and a second gear member 232 that mesh with each other. The first gear member 231 is coupled to the power source 22 and is directly driven by the power source 22. The second gear member 232 is coupled to the nut 122 of the braking unit 12, and the second gear member 232 and the nut 122 is a state of being integrated and linked with each other. The control unit 24 is coupled to the touch switch 21 and the power source 22 respectively.
藉由設置該習用煞車自動調整裝置2，當煞車蹄片磨損使得煞車蹄片與煞車鼓的間距擴大時，使用者拉動該煞車把手11行程會延長，因此將觸壓到該觸壓開關21，與該觸壓開關21耦接之控制單元24係啟動該動力源22，該動力源22帶動該第一齒輪件231旋轉，進而一併帶動該第二齒輪件232及該螺帽122轉動，以迫使該擺臂121朝該煞車線13移動來將煞車蹄片略微向外撐開，使煞車蹄片與煞車鼓的間距形成與煞車蹄片尚未磨損前相同之準位。據此，該習用煞車自動調整裝置2能夠鼓式煞車的煞車蹄片與煞車鼓的間距保持定值，有效控制該習用鼓式煞車裝置1之煞車效果的變化幅度。 By setting the conventional automatic brake adjusting device 2, when the brake shoe is worn and the distance between the brake shoe and the brake drum is enlarged, the stroke of the user pulling the brake handle 11 will be extended, so the user will press the touch switch 21. A control unit 24 coupled to the touch switch 21 activates the power source 22. The power source 22 drives the first gear member 231 to rotate, and then drives the second gear member 232 and the nut 122 to rotate. The swing arm 121 is forced to move toward the brake line 13 to slightly spread the brake shoe outward, so that the distance between the brake shoe and the brake drum is the same as that before the brake shoe is worn. According to this, the conventional automatic brake adjusting device 2 can keep the distance between the brake shoe and the drum of the drum brake at a fixed value, and effectively control the variation range of the braking effect of the conventional drum brake device 1.
惟，該習用煞車自動調整裝置2需要採用觸動開關21、動力源22及控制單元24等電子元件，使其具有成本高昂、故障率高與維修困難等缺點，由於成本較低與維修簡便係習用鼓式煞車的重要優點，設置該習用煞車自動調整裝置21將大幅降低鼓式煞車之市場價值，顯然不符合業界需求。再者，該動力源22必須固定於該煞車單元12之擺臂121，實際上在現有車輛的煞車系統中並未預留容置該動力源22的空間，且現有車輛的擺臂121亦無對應之結合部位可供該動力源22組裝，換言之，該習用煞車自動調整裝置2無法適用於市售車輛當中，不能單獨販售供使用者自行添購安裝，適用範圍將嚴重限縮。況且，該習用煞車自動調整裝置2還需要在煞車把手或煞車踏板的位置安裝該觸動開關21，並且以導線將該控制單元24分別耦接該觸動開關21及該動力源22，使得該習用煞車自動調整裝置2難以應用於車體空間受限之機車或自行車當中。 However, the conventional automatic brake adjusting device 2 requires the use of electronic components such as a touch switch 21, a power source 22, and a control unit 24, so that it has the disadvantages of high cost, high failure rate, and difficult maintenance. The important advantage of the drum brake, the provision of the conventional brake automatic adjustment device 21 will greatly reduce the market value of the drum brake, which obviously does not meet the needs of the industry. In addition, the power source 22 must be fixed to the swing arm 121 of the braking unit 12, in fact, no space for the power source 22 is reserved in the braking system of the existing vehicle, and the swing arm 121 of the existing vehicle does not have The corresponding coupling part can be assembled by the power source 22, in other words, the conventional automatic brake adjusting device 2 cannot be applied to commercially available vehicles, and cannot be sold separately for users to purchase and install by themselves. The scope of application will be severely limited. Moreover, the conventional brake automatic adjustment device 2 also needs to install the touch switch 21 at the position of a brake handle or a brake pedal, and couple the control unit 24 to the touch switch 21 and the power source 22 with wires, so that the conventional brake It is difficult to apply the automatic adjustment device 2 to a locomotive or a bicycle in which the space of the vehicle body is limited.
本發明的目的在於提供一種可在煞車過程中自動補償鼓煞自由間隙之裝置，其係以一連接滑座連接煞車搖臂之調整螺桿與輸入一煞 車拉力之煞車導線，並藉由該連接滑座與其樞接於一固定座的外殼之間的相互運動而轉動該調整螺桿，使該鼓煞的煞車搖臂朝向該煞車導線偏擺一角度後達到平衡，以補償過度磨耗的煞車蹄片與煞車鼓之間的自由間隙。 The purpose of the present invention is to provide a device that can automatically compensate for the free gap of the drum brake during the braking process. The device uses a connecting slide to connect the adjusting screw of the brake rocker arm and the input brake. The brake wire of the vehicle pulling force, and the mutual adjustment between the connecting slide and the shell pivoted to a fixed seat to rotate the adjusting screw, so that the brake rocker arm of the drum brake is deflected toward the brake wire by an angle. Equilibrium is achieved to compensate for the free clearance between the excessively worn brake shoe and brake drum.
為達成上述目的，本創作的技術手段包含：一固定座、一外殼、一連接滑座以及一轉動導引機構。該外殼係樞接於該固定座，該外殼的內部並具有一內徑腔室；該連接滑座可沿著該內徑腔室自由移動，其一端面嵌設一單向軸承，並以該單向軸承之內徑嵌套該調整螺桿後，將該調整螺桿末端可轉動地卡接於該連接滑座內，該連接滑座另一端面係可自由擺動地連接該煞車導線；該轉動導引機構係將互相對應套合的一導銷和一包含直槽與斜槽之導槽分別設置於該外殼與該連接滑座上，並根據該煞車導線的拉動距離到達一預定值時，而使該連接滑座旋轉一角度，進而縮短該調整螺桿的作用長度，並加大該煞車搖臂的偏擺角度。 In order to achieve the above purpose, the technical means of the present invention includes: a fixed seat, a casing, a connecting slide, and a rotation guide mechanism. The casing is pivotally connected to the fixing seat, and the inside of the casing has an inner diameter chamber; the connecting slide can move freely along the inner diameter chamber, and one end bearing is embedded in one end surface, and After the adjustment screw is nested in the inner diameter of the one-way bearing, the end of the adjustment screw is rotatably locked in the connection slide, and the other end of the connection slide is freely swingably connected to the brake wire; the rotation guide The guide mechanism sets a guide pin and a guide groove including a straight groove and a sloping groove correspondingly to each other on the casing and the connecting slide, respectively, and reaches a predetermined value according to the pulling distance of the brake wire, and The connecting slide is rotated by an angle, thereby shortening the action length of the adjusting screw and increasing the yaw angle of the brake rocker arm.
在一實施方式中，該固定座係固設於設置該鼓煞的車體或車架上，或者固定在該鼓煞的該煞車鼓上。 In one embodiment, the fixing seat is fixed on the vehicle body or frame provided with the drum brake, or is fixed on the brake drum of the drum brake.
在一實施方式中，該導槽之直槽的開設方向係平行於該連接滑座移動方向，該導槽之斜槽的開設方向係與該直槽的開設方向形成一夾角。該連接滑座受到該轉動導引機構而旋轉的方向為該單向軸承內外徑呈鎖止狀態的轉動方向。 In one embodiment, the opening direction of the straight groove of the guide groove is parallel to the moving direction of the connecting slide, and the opening direction of the inclined groove of the guide groove forms an angle with the opening direction of the straight groove. The direction in which the connecting slide is rotated by the rotation guide mechanism is the direction in which the inner and outer diameters of the one-way bearing are locked.
在本創作之一實施方式中，該轉動導引機構之該導槽係設置於該連接滑座之表面，該導銷係設置於該外殼上並對應嵌設至該導槽內；該固定座包含一底板、一頂板及連接該底板與該頂板之側壁，該底板具有一將該固定座螺鎖至該煞車鼓之一鎖孔，該頂板具有一供該外殼樞接的一樞孔，該側壁設有一供該煞車導線通過之槽孔。 In one embodiment of the present invention, the guide groove of the rotation guide mechanism is provided on the surface of the connection slide, and the guide pin is provided on the housing and correspondingly embedded in the guide groove; the fixed seat The bottom plate includes a bottom plate, a top plate, and a side wall connecting the bottom plate and the top plate. The bottom plate has a lock hole for screwing the fixing seat to the brake drum. The top plate has a pivot hole for pivotally connecting the casing. The side wall is provided with a slot through which the brake wire passes.
該調整螺桿末端具有一頸部，該連接滑座中心軸具有一供該調整螺桿末端穿入的通孔，該通孔之徑向壁面突伸有至少一延伸至該頸部 的固定銷，以防止該調整螺桿脫出該連接滑座並可使該調整螺桿相對於該連接滑座自由旋轉。 The end of the adjusting screw has a neck, and the central axis of the connecting slide has a through hole for the end of the adjusting screw to pass through. The radial wall surface of the through hole protrudes at least one to the neck. To prevent the adjustment screw from coming out of the connection slide and allow the adjustment screw to rotate freely relative to the connection slide.
如上所述，本發明的特點包含有：本創作係設置於煞車搖臂與煞車導線之間，不需對暨有的鼓式煞車結構進行大幅改裝即可適用；本創作係為動態驅動，不需使用電力，可確保在電力中斷的條件下仍能正常運作；本創作係以不同形狀的開槽形狀對應於不同的煞車導線拉力，進而導引該連接滑座僅作往復移動或作出複合式的移動與轉動之動作，以根據煞車導線的拉力進行單純的拉動煞車搖臂煞車(煞車來令片未磨耗時)，或進行拉動煞車搖臂及旋緊調整螺桿(煞車來令片磨耗時)。 As mentioned above, the features of the present invention include: the creation is provided between the brake rocker arm and the brake wire, which can be applied without major modification of the existing drum brake structure; the creation is a dynamic drive. Electricity is required to ensure normal operation even when power is interrupted. This creation uses different shapes of slotted shapes to correspond to different brake wire pull forces, and then guides the connection slide for reciprocating movement or composite The movement and rotation of the brake, to simply pull the brake rocker arm brake according to the pulling force of the brake wire (brake to make the piece not worn), or pull the brake rocker arm and tighten the adjustment screw (brake to make the piece wear) .
[先前技術] [Prior art]
1‧‧‧習用鼓式煞車裝置 1‧‧‧ conventional drum brake
11‧‧‧煞車把手 11‧‧‧Brake lever
12‧‧‧煞車單元 12‧‧‧Brake unit
121‧‧‧擺臂 121‧‧‧ swing arm
122‧‧‧螺帽 122‧‧‧nut
13‧‧‧煞車線 13‧‧‧Brake line
131‧‧‧螺桿 131‧‧‧Screw
2‧‧‧習用煞車自動調整裝置 2‧‧‧Automatic brake adjustment device
21‧‧‧觸動開關 21‧‧‧Touch switch
22‧‧‧動力源 22‧‧‧ Power source
23‧‧‧齒輪組 23‧‧‧Gear Set
231‧‧‧第一齒輪件 231‧‧‧The first gear
232‧‧‧第二齒輪件 232‧‧‧Second Gear
24‧‧‧控制單元 24‧‧‧Control unit
[本發明] [this invention]
3‧‧‧自動補償裝置 3‧‧‧ automatic compensation device
31‧‧‧固定座 31‧‧‧Fixed
311‧‧‧頂板 311‧‧‧Top plate
3111‧‧‧樞設孔 3111‧‧‧ pivot hole
312‧‧‧底板 312‧‧‧ floor
3121‧‧‧鎖孔 3121‧‧‧Keyhole
313‧‧‧側壁 313‧‧‧ sidewall
3131‧‧‧槽孔 3131‧‧‧Slot
32‧‧‧外殼 32‧‧‧ shell
321‧‧‧內徑腔室 321‧‧‧Inner diameter chamber
322‧‧‧樞接軸 322‧‧‧ Pivot
33‧‧‧連接滑座 33‧‧‧Connect the slide
331‧‧‧單向軸承 331‧‧‧One-way bearing
332‧‧‧連接部 332‧‧‧Connection Department
333‧‧‧通孔 333‧‧‧through hole
334‧‧‧固定銷 334‧‧‧Fixed pin
34‧‧‧轉動導引機構 34‧‧‧Rotary guide mechanism
341‧‧‧導銷 341‧‧‧Guide Pin
342‧‧‧導槽 342‧‧‧Guide
3421‧‧‧直槽 3421‧‧‧Straight groove
3422‧‧‧斜槽 3422‧‧‧Chute
4‧‧‧鼓煞 4‧‧‧ Drums
41‧‧‧煞車鼓 41‧‧‧Brake drum
42‧‧‧煞車導線 42‧‧‧Brake wire
43‧‧‧煞車搖臂組件 43‧‧‧brake rocker arm assembly
431‧‧‧樞軸 431‧‧‧ Pivot
432‧‧‧煞車搖臂 432‧‧‧Brake rocker
4321‧‧‧偏擺端部 4321‧‧‧Eccentric end
4322‧‧‧銷軸 4322‧‧‧pin
433‧‧‧回拉彈簧 433‧‧‧Retraction spring
434‧‧‧調整螺桿 434‧‧‧adjusting screw
4341‧‧‧頸部 4341‧‧‧ Neck
435‧‧‧套筒螺母 435‧‧‧Socket nut
4351‧‧‧套筒部 4351‧‧‧Sleeve
5‧‧‧車體或車架 5‧‧‧ body or frame
51‧‧‧煞車把手或煞車踏板 51‧‧‧brake handle or brake pedal
6,6’,6”‧‧‧搖臂端補償裝置 6,6 ’, 6” ‧‧‧‧ rocker end compensation device
61,61’,61”‧‧‧固定桿件 61,61 ’, 61” ‧‧‧‧Fixed rod
611‧‧‧固定部 611‧‧‧Fixed section
612,612’,612”‧‧‧第一配合部 612,612 ’, 612” ‧‧‧first mating section
6121‧‧‧槽孔 6121‧‧‧Slot
6122‧‧‧桿體 6122‧‧‧Body
6123‧‧‧叉桿 6123‧‧‧ Fork
62‧‧‧撥轉桿件 62‧‧‧Dial lever
621‧‧‧套環 621‧‧‧ Collar
622‧‧‧第二配合部 622‧‧‧Second Mating Department
6221‧‧‧凸緣 6221‧‧‧ flange
6222‧‧‧開槽 6222‧‧‧Slotted
63‧‧‧單向軸承 63‧‧‧One-way bearing
631‧‧‧內徑 631‧‧‧Inner diameter
632‧‧‧外徑 632‧‧‧ outer diameter
64‧‧‧限制空間 64‧‧‧ limited space
641‧‧‧推抵面 641‧‧‧ push face
642‧‧‧撥回面 642‧‧‧call back
A‧‧‧未煞車初始角度 A‧‧‧ initial angle without braking
B‧‧‧補償後未煞車初始角度 B‧‧‧ Initial angle without braking after compensation
C‧‧‧偏擺角度 C‧‧‧deflection angle
D‧‧‧適應角度 D‧‧‧ Adaptation angle
P‧‧‧煞車拉力 P‧‧‧Brake Rally
S,S1,S2,S3‧‧‧截面 S, S1, S2, S3 ‧‧‧ sections
圖1A為先前技術之鼓式煞車裝置的平面示意圖；圖1B為另一先前技術之鼓式煞車裝置的平面示意圖；圖2為本創作之自動補償裝置一實施例的立體圖；圖3為圖2之自動補償裝置實施例的另一角度立體圖；圖4為圖3之自動補償裝置實施例之立體***圖；圖5為本創作之自動補償裝置之調整自由間隙前的平面示意圖；圖6為本創作之自動補償裝置之調整自由間隙時的作動示意圖；圖7為本創作之自動補償裝置之調整自由間隙後的平面示意圖；圖8為本創作之搖臂端補償裝置之一實施例的後視圖；圖9為本創作之搖臂端補償裝置之一實施例的立體***圖；圖10為圖9之立體組合圖；圖11為本創作之搖臂端補償裝置之未煞車時的後視圖；圖12為本創作之搖臂端補償裝置之煞車及解除煞車時相關作動的後 視圖；圖13為本創作之搖臂端補償裝置之另一實施例的後視圖；圖14為圖13的立體圖；圖15為本創作之搖臂端補償裝置之又一實施例的立體圖；圖16為本創作之搖臂端補償裝置組合自動補償裝置之第一實施例的立體圖；圖17為圖16中的搖臂端補償裝置之煞車及解除煞車時相關作動的後視圖；圖18為本創作之搖臂端補償裝置組合自動補償裝置之第二實施例的立體圖；圖19為本創作之搖臂端補償裝置組合自動補償裝置之第三實施例的立體圖。 FIG. 1A is a schematic plan view of a drum brake device of the prior art; FIG. 1B is a schematic plan view of another drum brake device of the prior art; FIG. 2 is a perspective view of an embodiment of an automatic compensation device of the creation; Another perspective perspective view of the embodiment of the automatic compensation device; FIG. 4 is a three-dimensional exploded view of the embodiment of the automatic compensation device of FIG. 3; FIG. 5 is a schematic plan view of the automatic compensation device before the adjustment of the free clearance; The schematic diagram of the operation of the automatic compensation device of the creation when adjusting the free gap; FIG. 7 is a schematic plan view of the automatic compensation device of the creation after adjusting the free clearance; FIG. 8 is a rear view of one embodiment of the swing arm end compensation device of the creation Figure 9 is a three-dimensional exploded view of an embodiment of the swing arm end compensation device; Figure 10 is a three-dimensional combined view of Figure 9; and Figure 11 is a rear view of the swing arm end compensation device when it is not braked; Figure 12 shows the brakes of the swing arm end compensation device and the related actions when the brakes are released. FIG. 13 is a rear view of another embodiment of the swing arm end compensation device of the creation; FIG. 14 is a perspective view of FIG. 13; FIG. 15 is a perspective view of another embodiment of the swing arm end compensation device of the creation; 16 is a perspective view of the first embodiment of the swing arm end compensation device combined with an automatic compensation device; FIG. 17 is a rear view of the rocker end compensation device shown in FIG. 16 and the related actions when the brake is released; FIG. 18 is A perspective view of a second embodiment of a creative swing arm end compensation device combined with an automatic compensation device; FIG. 19 is a perspective view of a third embodiment of a creative swing arm end compensation device combined with an automatic compensation device.
茲配合圖式將本創作實施例詳細說明如下，其所附圖式均為簡化之示意圖，僅以示意方式說明本創作之基本結構，因此在該等圖式中僅標示與本創作有關之元件，且所顯示之元件並非以實施時之數目、形狀、尺寸比例等加以繪製，其實際實施時之規格尺寸實為一種選擇性之設計，且其元件佈局形態有可能更為複雜。 The following is a detailed description of this creative embodiment in conjunction with the drawings. The drawings are simplified schematic diagrams, which illustrate the basic structure of the creative only in a schematic way. Therefore, only the components related to the creative are marked in these drawings. Moreover, the displayed components are not drawn according to the number, shape, size ratio, etc. of the implementation, and the actual implementation specifications are an optional design, and the component layout may be more complicated.
如圖2、圖3及圖4所示。本實施例之鼓煞自由間隙之自動補償裝置3係銜接該鼓煞4之煞車鼓41外側的一煞車導線42與一煞車搖臂組件43，該煞車導線42另端係連接於可實施一煞車拉力的一煞車把手或煞車踏板51，該煞車搖臂組件43包括一煞車搖臂432、一回拉彈簧433、一調整螺桿434以及一套筒螺母435。該煞車搖臂432係以一樞軸431為軸心偏擺一角度後，以槓桿原理(此為煞車系統之基本設計原理)而能改變該鼓煞4內之 來令片(未圖示)表面與其對應的煞車鼓41內壁面間的自由間隙大小；該回拉彈簧433係設置於該煞車搖臂432與該樞軸431之間，其作用為可使偏擺的該煞車搖臂432復歸原位(即未煞車時煞車搖臂432的初始位置)；該套筒螺母435係螺設於該煞車搖臂432的偏擺端部4321的調整螺桿434，以進行調整螺桿434的定位並可調整該調整螺桿434的作用長度(請先同時參照圖5所示，即由該調整螺桿434之接受煞車拉力的端面至該調整螺桿434與該煞車搖臂432的偏擺端部4321連接的距離，在正常設置下，該作用長度愈長，該煞車搖臂432的未煞車初始角度A愈小，則該鼓煞4的自由間隙愈大)。 As shown in Figure 2, Figure 3 and Figure 4. The automatic compensation device 3 of the drum brake free clearance of this embodiment is connected to a brake wire 42 and a brake rocker arm assembly 43 on the outside of the brake drum 41 of the drum brake 4, and the other end of the brake wire 42 is connected to a brake that can be implemented. A brake lever or brake pedal 51 for pulling force. The brake rocker arm assembly 43 includes a brake rocker arm 432, a return spring 433, an adjusting screw 434, and a sleeve nut 435. The brake rocker 432 is oscillated by an angle with a pivot 431 as the axis, and the principle of leverage (this is the basic design principle of the brake system) can be used to change the contents of the drum brake 4. The free gap between the surface of the piece (not shown) and the corresponding inner wall surface of the brake drum 41; the pull-back spring 433 is disposed between the brake rocker arm 432 and the pivot shaft 431, and its function is to make the bias The pendulum brake rocker arm 432 is returned to its original position (ie, the initial position of the brake rocker arm 432 when not being braked); the sleeve nut 435 is screwed on the adjusting screw 434 of the deflection end 4321 of the brake rocker arm 432 to Position the adjustment screw 434 and adjust the length of the adjustment screw 434 (please refer to FIG. 5 at the same time, that is, from the end of the adjustment screw 434 that receives the brake pull force to the adjustment screw 434 and the brake rocker 432 (The distance at which the yaw end 4321 is connected, under normal settings, the longer the action length, the smaller the unbraking initial angle A of the brake rocker arm 432, the greater the free clearance of the drum brake 4).
本實施例之該自動補償裝置3包含：固定座31、外殼32、連接滑座33以及轉動導引機構34。固定座31係固設於設置該鼓煞4的該煞車鼓41之上，但不以此為限(例如，該固定座31也可固定於設置該鼓煞4的車體或車架5上)。外殼32係樞設於該固定座31，其內部具有一內徑腔室321；連接滑座33，係可沿著該內徑腔室321自由移動，連接滑座33的一端面嵌設一單向軸承331，並以該單向軸承331的內徑供該調整螺桿434嵌套後，使該調整螺桿434末端可轉動地卡接於該連接滑座33內，該連接滑座33的相對的另一端面具有一可自由擺動地連接該煞車導線42的連接部332。該轉動導引機構34係將互相對應套合的一導銷341和一包含彼此互相連接的直槽3421與斜槽3422之導槽342，其係分別設置於該外殼32與該連接滑座33之間的面對面的部位上，具體而言，該導槽342係設置於該連接滑座33之表面，該導銷341係設置於該外殼32上並對應嵌設至該導槽342內，當然在另一實施例中也可將該導銷341與該導槽342反置(即導銷341設置在該連接滑座33表面、導槽342設置在該外殼32上)，並調整該直槽3411與斜槽3422的順序及角度方向也可達成相同效果。 The automatic compensation device 3 of this embodiment includes: a fixed base 31, a housing 32, a connecting slide 33, and a rotation guide mechanism 34. The fixing seat 31 is fixed on the brake drum 41 provided with the drum brake 4, but is not limited thereto (for example, the fixing seat 31 may also be fixed on the vehicle body or frame 5 where the drum brake 4 is provided. ). The housing 32 is pivotally mounted on the fixed seat 31, and has an inner diameter chamber 321 inside; the connecting slide 33 is freely movable along the inner diameter chamber 321, and a single end is connected to one end of the connecting slide 33. After the adjusting screw 434 is nested toward the bearing 331 and the inner diameter of the one-way bearing 331, the end of the adjusting screw 434 is rotatably engaged with the connecting slide 33, and the opposite of the connecting slide 33 The other end surface has a connecting portion 332 which can swingably connect the brake wire 42. The rotation guide mechanism 34 is a guide pin 341 and a guide groove 342 including a straight groove 3421 and an inclined groove 3422 interconnected with each other, which are respectively fitted to the housing 32 and the connecting slide 33 respectively. On the part facing each other, specifically, the guide groove 342 is provided on the surface of the connection slide 33, and the guide pin 341 is provided on the housing 32 and is correspondingly embedded in the guide groove 342, of course. In another embodiment, the guide pin 341 and the guide groove 342 may be reversed (that is, the guide pin 341 is provided on the surface of the connection slide 33 and the guide groove 342 is provided on the housing 32), and the straight groove is adjusted. The order and angular direction of 3411 and inclined groove 3422 can also achieve the same effect.
續請參見圖5、圖6及圖7所示。根據上述結構之實施例，當使用者以煞車把手或煞車踏板51對該煞車導線42輸入一煞車拉力P時，該煞 車導線42拉動該連接滑座33往該煞車導線42的方向(圖5的右側)移動，該連接滑座33隨之帶動卡接於另一端的調整螺桿434同向移動，該調整螺桿434向該煞車導線42方向拉動時即可使該煞車搖臂432由該未煞車初始角度A(如圖5所示)轉動一偏擺角度C(如圖6所示)，同時該回拉彈簧433產生蓄能作用，其可使該鼓煞4的自由間隙消除並產生煞車作用。 See FIG. 5, FIG. 6 and FIG. 7 for further details. According to the embodiment of the above structure, when a user inputs a brake pulling force P to the brake wire 42 with a brake handle or a brake pedal 51, the brake The vehicle wire 42 pulls the connection slide 33 to the direction of the brake wire 42 (right side in FIG. 5), and the connection slide 33 then drives the adjustment screw 434 that is locked at the other end to move in the same direction, and the adjustment screw 434 moves to the same direction. When the brake wire 42 is pulled in the direction, the brake rocker arm 432 can be rotated from the unbraking initial angle A (as shown in FIG. 5) by a yaw angle C (as shown in FIG. 6), and at the same time, the pull-back spring 433 generates The energy storage function can eliminate the free play of the drum brake 4 and generate a braking effect.
值得一提的是，當該鼓煞4的來令片(或稱煞車蹄片)未磨耗時，對該煞車導線42輸入一煞車拉力P即可消除該鼓煞4的自由間隙並取得足夠的煞車力，且當該煞車拉力P移除後，該煞車搖臂432受到該回拉彈簧433回復力拉回原未煞車初始角度A的位置，也使得該調整螺桿434、該連接滑座33及該煞車導線42回復原來煞車前的位置，此時該連接滑座33的往復移動行程即對應於固定不動的該導銷341之該導槽342之直槽3421的範圍內移動，因此該連接滑座33只會進行單純的前後移動的動作，而不產生旋轉動作；然而，當該鼓煞4的來令片(或稱煞車蹄片)磨耗後，對該煞車導線42輸入一煞車拉力P並無法消除該鼓煞4的自由間隙並取得足夠的煞車力，此時使用者(如車輛駕駛人)遂直覺地加強輸入於該煞車導線42的力道，使得該煞車導線42被輸入大於該煞車拉力P的拉力，此時該連接滑座33被拉動的行程會由該導銷341對應的直槽3421範圍過度至斜槽3422，並使該連接滑座33對應地向一第一方向產生轉動，該連接滑座33轉動後即以該單向軸承331帶動該調整螺桿434同步向該第一方向轉動(該單向軸承331向該第一方向轉動時，其內外徑呈鎖止狀態)，使得該調整螺桿434與該套筒螺母435的相對螺鎖作用(該套筒螺母435不動，而該調整螺桿434旋轉而移動)，而以適當的螺距進程縮短該調整螺桿434的作用長度；當使用者移除該大於該煞車拉力P的拉力後，該連接滑座33往回移動，並在該導銷341對應的斜槽3422範圍回到直槽3421範圍時，該連接滑座33對應地向一第一方向的相反方向產生轉動，該連接滑座33轉動後即以該單向軸承331帶動該調 整螺桿434同步向相反於該第一方向轉動(該單向軸承331向該第一方向的反方向轉動時，其內外徑呈釋放狀態而可自由轉動)，因此不會使該調整螺桿434同步產生轉動，也不會再回復之前被調整的作用長度，此時，該煞車搖臂432在未施加煞車拉力時的補償後未煞車初始角度B，因此使該自由間隙被縮小，也因此可使因來令片的磨耗衍生的自由間隙擴大問題獲得補償及修正，如圖7所示。 It is worth mentioning that when the brake pad (or brake shoe) of the drum brake 4 is not worn, inputting a brake pull force P to the brake wire 42 can eliminate the free gap of the drum brake 4 and obtain sufficient The braking force, and after the braking pull force P is removed, the brake rocker arm 432 is pulled back to the original unbraking initial angle A position by the return force of the pull back spring 433, which also makes the adjusting screw 434, the connecting slide 33 and The brake wire 42 returns to the original position before braking. At this time, the reciprocating stroke of the connecting slide 33 corresponds to the range of the straight groove 3421 of the guide groove 342 of the guide pin 341 which is stationary. Therefore, the connection slides. The seat 33 will only perform a simple forward and backward movement, and does not generate a rotation movement; however, when the brake pad (or brake shoe) of the drum brake 4 is worn, a brake pull force P is input to the brake wire 42 and The free clearance of the drum brake 4 cannot be eliminated and sufficient braking force is obtained. At this time, the user (such as a vehicle driver) intuitively strengthens the force input to the brake wire 42 so that the brake wire 42 is input more than the brake pulling force. Pulling force of P, the connection slips at this moment The pulled stroke of 33 will be over the range of the straight groove 3421 corresponding to the guide pin 341 to the inclined groove 3422, and the connecting slide 33 will correspondingly rotate in a first direction. After the connecting slide 33 rotates, the The one-way bearing 331 drives the adjusting screw 434 to synchronously rotate in the first direction (the inner and outer diameters of the one-way bearing 331 are locked when the one-way bearing 331 rotates in the first direction), so that the adjusting screw 434 and the sleeve nut 435 Relative lock action (the sleeve nut 435 does not move, and the adjustment screw 434 rotates and moves), and the action length of the adjustment screw 434 is shortened with an appropriate pitch process; when the user removes the force greater than the brake pull force P, After pulling, the connecting slide 33 moves back, and when the range of the inclined groove 3422 corresponding to the guide pin 341 returns to the range of the straight groove 3421, the connecting slide 33 correspondingly rotates in a direction opposite to a first direction. After the connection slide 33 rotates, the one-way bearing 331 drives the adjustment. The entire screw 434 rotates in the opposite direction to the first direction synchronously (when the one-way bearing 331 rotates in the opposite direction to the first direction, its inner and outer diameters are released and can rotate freely), so the adjustment screw 434 is not synchronized When the rotation occurs, the previously adjusted working length will not be restored. At this time, the brake rocker arm 432 does not brake the initial angle B after compensation when no brake tension is applied, so the free gap is reduced, and therefore the As a result, the free gap expansion problem caused by the wear of the film is compensated and corrected, as shown in FIG. 7.
當然，當該連接滑座33朝向該煞車導線42方向移動並同向地拉動該調整螺桿434時，該調整螺桿434則會因為受限於該煞車搖臂432之偏擺端部4321的向輪內(即朝向該煞車導線42的方向)偏轉，而同時被提高其水平位置，且因連接該調整螺桿434另一端的連接滑座33之外部導引移動之外殼32，係與固定不動的該固定座31樞接，而使該外殼32係與固定座31形成可互相彎折的結構，因此該外殼32及其在內部移動的連接滑座33、該調整螺桿434等構件遂可自動地形成一斜角，而能適應因為該煞車搖臂432偏擺面產生的擺幅。 Of course, when the connecting slide 33 is moved toward the brake wire 42 and the adjustment screw 434 is pulled in the same direction, the adjustment screw 434 will be restricted by the steering wheel of the deflection end 4321 of the brake rocker arm 432. The housing 32, which is deflected inside (that is, in the direction of the brake wire 42), is simultaneously raised in its horizontal position, and is moved by the outer guide of the connecting slide 33 connected to the other end of the adjusting screw 434, which is fixed to the stationary 32 The fixing base 31 is pivotally connected, so that the housing 32 and the fixing base 31 form a structure that can be bent to each other. Therefore, the housing 32 and its internally connected connecting slide 33, the adjusting screw 434 and other components can be automatically formed. An oblique angle can adapt to the swing amplitude caused by the deflection of the brake rocker 432.
在上述實施例中，該導槽342之直槽3421的開設方向係平行於該連接滑座33移動方向，該導槽342之斜槽3422的開設方向係與該直槽3421的開設方向形成一夾角。 In the above embodiment, the opening direction of the straight groove 3421 of the guide groove 342 is parallel to the moving direction of the connecting slide 33, and the opening direction of the inclined groove 3422 of the guide groove 342 is formed with the opening direction of the straight groove 3421. Angle.
在一實施例中，如圖2~圖4所示。該固定座31包含一底板312、一頂板311及連接該底板312與該頂板311之側壁313，該底板312具有一將該固定座31螺鎖至該煞車鼓41之一鎖孔3121，該頂板311具有一供該外殼32樞接的一樞設孔3111，該側壁313設有一供該煞車導線42(或該煞車導線42的外管)通過之槽孔3131。 In an embodiment, as shown in FIG. 2 to FIG. 4. The fixing base 31 includes a bottom plate 312, a top plate 311, and a side wall 313 connecting the bottom plate 312 and the top plate 311. The bottom plate 312 has a locking hole 3121 for screwing the fixing base 31 to one of the brake drums 41. The top plate 311 has a pivot hole 3111 for pivoting the housing 32, and the side wall 313 is provided with a slot hole 3131 through which the brake wire 42 (or an outer tube of the brake wire 42) passes.
在一實施例中，該調整螺桿434末端具有一頸部4341，該連接滑座33中心軸具有一供該調整螺桿434末端穿入的通孔333，該通孔333之徑向壁面突伸有至少一延伸至該頸部4341的固定銷334，以防止該調整螺 桿434脫出該連接滑座22並可使該調整螺桿434相對於該連接滑座33自由地旋轉。 In an embodiment, the end of the adjusting screw 434 has a neck portion 4341, and the central axis of the connecting slide 33 has a through hole 333 through which the end of the adjusting screw 434 penetrates. The radial wall surface of the through hole 333 protrudes from At least one fixing pin 334 extending to the neck 4341 to prevent the adjusting screw The rod 434 comes out of the connection slide 22 and allows the adjusting screw 434 to rotate freely relative to the connection slide 33.
另外，請參照圖8-圖10所示。本實施例中的鼓煞自由間隙之搖臂端補償裝置6，係設置在煞車搖臂組件43與煞車導線42之間，該煞車搖臂組件43如前所述，係包括一可煞車時擺動後復歸原位的煞車搖臂432、一穿過該煞車搖臂432的偏擺端部4321之銷軸4322的調整螺桿434以及一定位並螺入該調整螺桿434的套筒螺母435，該搖臂端補償裝置6包含；一固定桿件61，其具有一固定部611及由該固定部611延伸的第一配合部612，該固定部611係組設於該偏擺端部4321，該第一配合部612係朝向該套筒螺母435一側延伸；一撥轉桿件62，其具有一套環621及自該套環621的圓心，向外放射狀伸展的第二配合部622；以及一單向軸承63，其具有單一方同互動轉向的內徑631與外徑632，且該內徑631係卡套於該套筒螺母435的套筒部4351上，該外徑632係供該撥轉桿件62的套環621卡扣而固定。 In addition, please refer to FIG. 8 to FIG. 10. The rocker arm end compensating device 6 of the drum brake free clearance in the present embodiment is disposed between the brake rocker arm assembly 43 and the brake wire 42. The brake rocker arm assembly 43 includes a swingable brake when it is braked as described above. The brake rocker arm 432 returned to its original position, an adjusting screw 434 passing through the pin 4432 of the swing end 4321 of the brake rocker arm 432, and a sleeve nut 435 positioned and screwed into the adjusting screw 434. The arm end compensating device 6 includes: a fixing rod 61 having a fixing portion 611 and a first mating portion 612 extending from the fixing portion 611, the fixing portion 611 is arranged at the yaw end portion 4321, the first A mating portion 612 extends toward one side of the sleeve nut 435; a toggle lever member 62 having a set of rings 621 and a second mating portion 622 extending radially outward from the center of the circle of the collar 621; and A one-way bearing 63, which has a single inner diameter 631 and an outer diameter 632, and the inner diameter 631 is clamped on the sleeve portion 4351 of the sleeve nut 435. The outer diameter 632 is provided for the The collar 621 of the dial lever 62 is fastened and fixed.
請共同參照圖11-圖12。上述搖臂端補償裝置6構件中，該第一配合部612或該第二配合部622係包含有一限制空間64，該第一配合部612與該第二配合部622係在該限制空間64內相互組套牽制(如圖11中該第二配合部622位於該限制空間64係為截面S)，該限制空間64互相面對面對應的二面包含一推抵面641和一撥回面642，該固定桿件61隨著該煞車搖臂432的煞車動作而轉動或復歸原始位置時，假若尚不需調整鼓煞的自由間隙的情況下，自動地，該第一配合部612與該第二配合部622在該限制空間64內互不干涉(如圖12中，實線表示的該第一配合部612為原始位置，此時該第二配合部622位於該限制空間64係為截面S1，在該固定桿件61作非調整間隙的轉動後為二點鏈線表示的該第一配合部612，該第二配合部622對應截面S2)；假若鼓煞的自由間隙過大的情況下，該煞車搖臂432的煞車動作時，其轉動 角度將變大，此時在該煞車搖臂轉動時，該第一配合部612的移動距離，將超出該限制空間64(如圖12中的虛線表示的該第一配合部612的位置，該第二配合部622係對應截面S3)，繼而壓迫並推動該推抵面641，使該第二配合部622受力，並聯動該撥轉桿件62轉動，更連帶地帶動該單向軸承63朝著其內、外徑(631,632)聯動方向轉動，並帶動該套筒螺母435沿著該調整螺桿434轉動而前進，以縮小鼓煞自由間隙，待該煞車搖臂432回轉時，該第一配合部612壓迫並推動該撥回面642，以使該撥轉桿件62帶動該單向軸承63朝內外徑(631,632)不聯動的方向轉動(此時無法帶動內徑631轉動)，而不轉動該套筒螺母435，進而完成一次的該套筒螺母435單向前進轉動。在本實施例中，該第一配合部612為一槽孔6121，該槽孔6121之相對側面分別為該推抵面641及該撥回面642，該第二配合部622為伸入該槽孔6121之一凸緣6221。 Please refer to FIG. 11 to FIG. 12 together. Among the six components of the rocker end compensation device, the first mating portion 612 or the second mating portion 622 includes a restriction space 64, and the first mating portion 612 and the second mating portion 622 are within the restriction space 64. The two mating portions are restrained from each other (as shown in FIG. 11, the second mating portion 622 is located in the restricted space 64 is a section S). The two faces of the restricted space 64 facing each other include a pushing surface 641 and a retracting surface 642. When the fixing lever 61 is rotated or returned to the original position in accordance with the braking action of the brake rocker arm 432, if it is not necessary to adjust the free clearance of the drum brake, the first engagement portion 612 and the second engagement automatically The parts 622 do not interfere with each other in the restricted space 64 (as shown in FIG. 12, the first mating part 612 indicated by the solid line is the original position, and at this time, the second mating part 622 is located in the restricted space 64 and has a section S1. The non-adjustable clearance rotation of the fixed lever 61 is the first mating portion 612 indicated by the two-point chain line, and the second mating portion 622 corresponds to the section S2); if the free clearance of the drum brake is too large, the brake When the rocker 432 brakes, it turns The angle will become larger. At this time, when the brake rocker rotates, the moving distance of the first mating portion 612 will exceed the limit space 64 (as shown by the dotted line in FIG. 12, the position of the first mating portion 612, the The second mating portion 622 corresponds to the cross section S3), and then presses and pushes the pushing abutment surface 641, so that the second mating portion 622 is stressed, and the toggle lever 62 is rotated in parallel, and the one-way bearing 63 is driven in conjunction. Rotate toward its inner and outer diameter (631,632) linkage direction, and drive the sleeve nut 435 to advance along the adjustment screw 434 to reduce the free gap of the drum brake. When the brake rocker arm 432 turns, the first The mating portion 612 presses and pushes the turning surface 642, so that the turning lever member 62 drives the one-way bearing 63 to rotate in a direction in which the inner and outer diameters (631,632) are not linked (at this time, the inner diameter 631 cannot be driven to rotate) without The sleeve nut 435 is rotated to complete the one-way forward rotation of the sleeve nut 435. In this embodiment, the first mating portion 612 is a slotted hole 6121, and the opposite sides of the slotted hole 6121 are the pushing surface 641 and the retracting surface 642, respectively, and the second mating portion 622 extends into the slot. One of the holes 6121 is a flange 6221.
值得一提的是，若以面向該調整螺桿434尾端時，該套筒螺母435以順時鐘方向轉動係為縮短該調整螺桿434作用長度、縮小鼓間自由間隙的情形下，該圖8之實施例之該固定桿件61係設置於該調整螺桿434與該煞車鼓41之間(即該調整螺桿434面對該煞車鼓41之一側)。 It is worth mentioning that if the sleeve nut 435 is turned clockwise when facing the rear end of the adjusting screw 434 to shorten the working length of the adjusting screw 434 and reduce the free gap between the drums, as shown in FIG. 8 The fixing rod 61 in the embodiment is disposed between the adjusting screw 434 and the brake drum 41 (that is, the adjusting screw 434 faces one side of the brake drum 41).
如圖13-圖14所示。另一實施例之搖臂端補償裝置6’中，該第二配合部622為一開槽6222，該開槽6222之相對側面分別為該推抵面641及該撥回面641，該第一配合部612為伸入該開槽6222之一桿體6122。 As shown in Figure 13-14. In the rocker end compensation device 6 'of another embodiment, the second mating portion 622 is a slot 6222, and opposite sides of the slot 6222 are the pushing surface 641 and the retracting surface 641, respectively. The engaging portion 612 is a rod body 6122 extending into one of the slots 6222.
如圖15所示。又一實施例之搖臂端補償裝置6”中，該第二配合部為一多個輪齒之扇齒組，該扇齒組之其中一對輪齒之兩齒面分別為該推抵面及該撥回面，該第一配合部為伸入該扇齒組之對應的叉桿。 As shown in Figure 15. In another embodiment of the rocker end compensation device 6 ", the second matching portion is a fan tooth group of a plurality of gear teeth, and two tooth surfaces of a pair of gear teeth of the fan tooth group are the pushing surfaces, respectively. And the reversing surface, the first mating portion is a corresponding fork rod that extends into the fan tooth group.
如圖16、圖18及圖19所示。本發明之該調整螺桿在位於該煞車搖臂之背向該套筒螺母的一側，更設置有如申請專利範圍第1項之自動補償裝置，如此一來，該鼓煞自由間隙的調整，係由該搖臂端補償裝置 (6,6’,6”)與該自動補償裝置3共同分擔。 As shown in Fig. 16, Fig. 18 and Fig. 19. The adjusting screw of the present invention is located on the side of the brake rocker arm facing away from the sleeve nut, and is further provided with an automatic compensation device such as the item 1 in the scope of patent application. In this way, the adjustment of the free clearance of the drum brake is Compensator (6,6 ', 6 ") is shared with the automatic compensation device 3.
如圖17所示，其係圖16中的搖臂端補償裝置6的配置及作動示意，由圖中可知，在煞車時，該自動補償裝置3作動後，該調整螺桿434雖然同時帶有軸向轉動的動作，此時該搖臂端補償裝置(6,6’,6”)仍可正常與之互動(如圖17中，虛線表示的第一配合部612及截面S1為未煞車時的初始位置、二點鏈線表示的第一配合部612及截面S2為煞車時未具有調整鼓間間隙作用的位置、虛線表示的一配合部612及截面S3為煞車時具有調整鼓間間隙作用的位置)，並協同達成調整鼓煞自由間隙的目的(此實施方式中，若以面向該調整螺桿434尾端時，該套筒螺母435以順時鐘方向轉動係為縮短該調整螺桿434作用長度、縮小鼓間自由間隙的情形下，該圖16、18、198之實施例之該固定桿件(61,61’61”)係設置於該調整螺桿434面對該煞車鼓41之反側。 As shown in FIG. 17, it is a schematic diagram of the configuration and operation of the rocker-arm end compensation device 6 in FIG. 16. As can be seen from the figure, after the automatic compensation device 3 is actuated during braking, the adjustment screw 434 has a shaft at the same time. In the direction of rotation, the rocker end compensation device (6,6 ', 6 ") can still interact with it normally (as shown in Figure 17, the first mating portion 612 and section S1 indicated by the dashed line are when the brake is not braked). The initial position, the first mating portion 612 and the cross section S2 indicated by the two-point chain line are positions that do not have the effect of adjusting the gap between the drums during braking, and the one mating portion 612 and the cross section S3 indicated by the dashed lines have the function of adjusting the gap between the drums when braking. Position), and cooperate to achieve the purpose of adjusting the free clearance of the drum brake (in this embodiment, if the sleeve nut 435 is turned clockwise when facing the rear end of the adjustment screw 434, the action length of the adjustment screw 434 is shortened, In the case of reducing the free gap between the drums, the fixing lever (61, 61'61 ") of the embodiment of Figs. 16, 18, and 198 is provided on the opposite side of the adjusting screw 434 facing the brake drum 41.
前述本發明所採用的技術手段之實施方式或實施例，並非用來限定本創作專利實施之範圍。即凡與本發明專利申請範圍文義相符，或依本發明專利範圍所做的均等變化與修飾，皆為本發明專利範圍所涵蓋。 The foregoing implementation manners or embodiments of the technical means adopted by the present invention are not intended to limit the scope of implementation of this creation patent. That is, all changes and modifications that are consistent with the meaning of the scope of patent application of the present invention, or made according to the scope of patent of the present invention, are covered by the scope of patent of the present invention.
Claims (10)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106122875A TWI628373B (en) | 2017-07-07 | 2017-07-07 | Automatic compensation device for drum brake free clearance |
| CN201710879675.1A CN109210112B (en) | 2017-07-07 | 2017-09-26 | Automatic compensation device for free clearance of drum brake and rocker arm end compensation device |
| JP2017226837A JP6429051B1 (en) | 2017-07-07 | 2017-11-27 | Automatic correction device for drum brake clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106122875A TWI628373B (en) | 2017-07-07 | 2017-07-07 | Automatic compensation device for drum brake free clearance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI628373B true TWI628373B (en) | 2018-07-01 |
| TW201907095A TW201907095A (en) | 2019-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW106122875A TWI628373B (en) | 2017-07-07 | 2017-07-07 | Automatic compensation device for drum brake free clearance |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6429051B1 (en) |
| CN (1) | CN109210112B (en) |
| TW (1) | TWI628373B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159673A (en) * | 2019-04-23 | 2019-08-23 | 高邮市顺达动力机电有限公司 | A kind of adjustable braking drum brake |
| CN115013460B (en) * | 2022-07-21 | 2023-06-16 | 临沂高新区鸿图电子有限公司 | Linear travel alarm mechanism with adjustable initial position |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5783726A (en) * | 1980-11-08 | 1982-05-25 | Honda Motor Co Ltd | Automatic idle stroke regulator of operational wire in brake operating device |
| US4442923A (en) * | 1980-07-18 | 1984-04-17 | Honda Giken Kogyo Kabushiki Kaisha | Automatic regulator for internally expanding drum brake |
| US4543849A (en) * | 1980-11-07 | 1985-10-01 | Honda Giken Kogyo Kabushiki Kaisha | Automatic adjusting device for actuating mechanism and its control wire |
| TW549283U (en) * | 2002-07-31 | 2003-08-21 | Ming Ho Ind Co Ltd | Automatic electric compensation apparatus for brake of motorcycle |
| CN204828407U (en) * | 2015-08-17 | 2015-12-02 | 三阳工业股份有限公司 | Drum -type brake self -modulation mechanism |
| TW201616004A (en) * | 2014-10-22 | 2016-05-01 | 呂春明 | Drum brake shoe clearance adjustment device automatically |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5218646A (en) * | 1975-08-02 | 1977-02-12 | Yoshigai Kikai Kinzoku Co Ltd | Bicycle brake regulator |
| JPS6027231Y2 (en) * | 1981-07-15 | 1985-08-16 | 日信工業株式会社 | Braking gap automatic adjustment device for mechanical drum brakes |
| US5067596A (en) * | 1990-10-09 | 1991-11-26 | Allied Signal Inc. | Clip-on automatic adjuster strut lever for a drum brake |
| JPH0617862A (en) * | 1991-12-30 | 1994-01-25 | Fumiaki Hasegawa | Braking device with automatic braking gap adjusting function |
| CN2130758Y (en) * | 1992-05-29 | 1993-04-28 | 陈月辉 | Bidirectional inertia boosting brake |
| CN2570166Y (en) * | 2002-11-25 | 2003-09-03 | 夏玉勤 | Regulating means for operating mechanism of motorcycle brake |
| CN201730984U (en) * | 2010-07-27 | 2011-02-02 | 泸州开士乐工程技术有限责任公司 | Brake |
| CN202624546U (en) * | 2012-05-14 | 2012-12-26 | 曾复徽 | Follow-up brake manual adjusting mechanism |
| CN203442026U (en) * | 2013-08-29 | 2014-02-19 | 宁波鑫云制动机械有限公司 | Two-side open-type brake pump device |
| TWI522275B (en) * | 2015-01-07 | 2016-02-21 | 明鴻工業股份有限公司 | Brake automatically adjustment apparatus |
-
2017
- 2017-07-07 TW TW106122875A patent/TWI628373B/en active
- 2017-09-26 CN CN201710879675.1A patent/CN109210112B/en active Active
- 2017-11-27 JP JP2017226837A patent/JP6429051B1/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4442923A (en) * | 1980-07-18 | 1984-04-17 | Honda Giken Kogyo Kabushiki Kaisha | Automatic regulator for internally expanding drum brake |
| US4543849A (en) * | 1980-11-07 | 1985-10-01 | Honda Giken Kogyo Kabushiki Kaisha | Automatic adjusting device for actuating mechanism and its control wire |
| JPS5783726A (en) * | 1980-11-08 | 1982-05-25 | Honda Motor Co Ltd | Automatic idle stroke regulator of operational wire in brake operating device |
| TW549283U (en) * | 2002-07-31 | 2003-08-21 | Ming Ho Ind Co Ltd | Automatic electric compensation apparatus for brake of motorcycle |
| TW201616004A (en) * | 2014-10-22 | 2016-05-01 | 呂春明 | Drum brake shoe clearance adjustment device automatically |
| CN204828407U (en) * | 2015-08-17 | 2015-12-02 | 三阳工业股份有限公司 | Drum -type brake self -modulation mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6429051B1 (en) | 2018-11-28 |
| CN109210112B (en) | 2020-02-18 |
| JP2019015396A (en) | 2019-01-31 |
| TW201907095A (en) | 2019-02-16 |
| CN109210112A (en) | 2019-01-15 |
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