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    • 13. 发明申请
    • BRAKE DEVICE FOR GARAGE DOORS AND THE LIKE, AND DOOR ASSEMBLY INCLUDING THE SAME
    • 用于货车门和类似物的制动装置和包括其的门组件
    • WO2006017931A1
    • 2006-02-23
    • PCT/CA2005/001257
    • 2005-08-16
    • CANIMEX INC.BEAUDOIN, MichelFOUCAULT, Pierre-LouisLEVESQUE, Jean-FrançoisPROVENCHER, PascalTREMBLAY, Richard
    • BEAUDOIN, MichelFOUCAULT, Pierre-LouisLEVESQUE, Jean-FrançoisPROVENCHER, PascalTREMBLAY, Richard
    • E05D13/00
    • E05D13/1269E05Y2600/56E05Y2800/684E05Y2800/692E05Y2800/744E05Y2900/106
    • A braking device (1) configured for use with the counterbalancing system (3) of a garage door. The brake device (1) includes a support bracket (11), a ratchet wheel (13), a pawl arm (15), and a biasing spring (49). The support bracket (11) is rigidly connected to a fixed structure and has a guiding slot (45). The ratchet wheel (13) is securely mounted about the overhead shaft (5) of the counterbalancing system (3) and has at least one notch (23). The pawl arm (15) has first and second ends (25,27), the first end (25) of the pawl arm (15) being pivotally connected to the support bracket (11) and the second end (27) of the pawl arm (15) cooperating with the guiding slot (45) and being movable with respect to the support bracket (11) along said guiding slot (45). The first and second ends (25,27) of the pawl arm (15) are further connected to flanges (29) of a plug (7) on either side of the overhead shaft (5). The biasing spring (49) is operatively connected between the support bracket (11) and the pawl arm (15) so as to exert a biasing force for biasing the pawl arm (15) towards the ratchet wheel (13). The pawl arm (15) is devised so that, an element (31) thereof is adjacent to the ratchet wheel (13), said element (31) being shaped and sized to be removably insertable into at least one notch (23) of the ratchet wheel (13) so as to block rotation of the ratchet wheel (13), and thus block rotation of the overhead shaft (5), in the event of a failure of the counterbalancing system (3) of the door. The brake device (1) further includes a shear pin (53) operatively connectable between the support bracket (11) and the pawl arm (15) for maintaining said pawl arm (15), prior to installation of the brake device (1) onto the counterbalancing system (3), in an intermediate configuration between the first and second configurations. The shear pin (53) is made of a specific material being breakable when the pawl arm (15) is rotated with respect to the support bracket (11) when the torsional force of the torsional spring (9) transmitted to said pawl arm (15) via the plug (9) has reached a predetermined value, ensuring namely that a predetermined minimal amount of load is present is said torsional spring (9) for counterbalancing purposes.
    • 一种配置成与车库门的平衡系统(3)一起使用的制动装置(1)。 制动装置(1)包括支撑托架(11),棘轮(13),棘爪臂(15)和偏压弹簧(49)。 支撑托架(11)刚性地连接到固定结构并具有引导槽(45)。 棘轮(13)牢固地安装在平衡系统(3)的顶部轴(5)周围并且具有至少一个凹口(23)。 棘爪臂(15)具有第一和第二端(25,27),棘爪臂(15)的第一端(25)枢转地连接到支撑托架(11),棘爪的第二端(27) 所述臂(15)与所述引导槽(45)协作并且可沿着所述引导槽(45)相对于所述支撑托架(11)移动。 棘爪臂(15)的第一和第二端(25,27)还进一步连接到顶杆(5)的任一侧上的塞(7)的凸缘(29)。 偏置弹簧(49)可操作地连接在支撑支架(11)和棘爪臂(15)之间,以便施加用于朝向棘轮(13)偏压棘爪臂(15)的偏压力。 棘爪臂(15)被设计成使得其元件(31)与棘轮(13)相邻,所述元件(31)的形状和尺寸被设计成可拆卸地插入到至少一个凹口 棘轮(13),以便在门的平衡系统(3)发生故障的情况下阻止棘轮(13)的旋转,从而阻止顶置轴(5)的旋转。 制动装置(1)还包括在将制动装置(1)安装到(1)上之前可操作地连接在支撑托架(11)和棘爪臂(15)之间用于维持所述棘爪臂(15)的剪切销 所述平衡系统(3)处于所述第一和第二配置之间的中间配置。 当扭转弹簧(9)的扭转力传递到所述棘爪臂(15)时,剪切销(53)由特定材料制成,当棘爪臂(15)相对于支撑托架(11)旋转时, )已经达到预定值,确保存在预定的最小量的负载是用于平衡目的的所述扭转弹簧(9)。