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    • 5. 发明授权
    • Door opening and closing mechanism with dual pivot axes for a door
    • 门打开和关闭机构,具有用于门的双枢轴
    • US06883841B2
    • 2005-04-26
    • US10655159
    • 2003-09-05
    • Masuo KawabataTakashi YoshikawaHiroshi Yoshimura
    • Masuo KawabataTakashi YoshikawaHiroshi Yoshimura
    • E05B17/00E05B63/04E05B65/00E05C19/16E05D15/50E05F15/12F25D23/02E05B3/00
    • E05B17/0025E05B17/0029E05B17/0033E05B63/04E05B65/0042E05C19/161E05D15/505E05F15/63E05Y2900/31F25D23/028F25D2323/022F25D2323/024F25D2400/04F25D2500/02Y10S292/71Y10T292/57
    • A door opening/closing mechanism fitted on a door that closes and opens an opening formed in the body of an apparatus by being brought into and out of contact with the rim of the opening has cam mechanisms that permit the door to engage with and disengage from the body at either of the right and left sides of the door. The cam mechanisms can be brought into a first lock position in which they lie symmetrically at both sides of the door and into a second lock position in which they lie symmetrically at both sides of the door, and each have a hinge pin that serves as a rotation axis in the second lock position and a groove cam that engages with the hinge pin in such a way as to be movable relative to the hinge pin. The groove cam has a slide portion on which a part of the innermost portion of the hinge pin slides when the cam mechanism is moved from the first lock position to the second lock position and of which the length in the direction of the width of the door is greater than the maximum permissible variation in the outermost distance (L) between the two groove cams formed at both sides of the door. When the door is closed, the cam mechanisms at both sides are kept in the first lock position and, when the door is opened at one side, the door slides and thereby causes the cam mechanism at the other side to be brought into the second lock position so as to be rotatably locked in the second lock position.
    • 安装在门上的门打开/关闭机构,其通过与开口的边缘接触而闭合并打开形成在设备的主体中的开口,具有允许门接合和脱离 身体在门的右侧和左侧。 凸轮机构可以进入第一锁定位置,其中它们对称地位于门的两侧并进入第二锁定位置,在该第二锁定位置中,它们对称地位于门的两侧,并且每个都具有用作 在第二锁定位置的旋转轴线和与铰链销啮合的凹槽凸轮,以便相对于铰链销可移动。 槽凸轮具有滑动部分,当凸轮机构从第一锁定位置移动到第二锁定位置时,铰链销的最内部分的一部分滑动到该滑动部分,并且其中门的宽度方向上的长度 大于形成在门的两侧的两个凹槽凸轮之间的最外侧距离(L)的最大允许变化。 当门关闭时,两侧的凸轮机构保持在第一锁定位置,并且当门在一侧打开时,门滑动,从而使另一侧的凸轮机构进入第二锁定 位置以可旋转地锁定在第二锁定位置。
    • 10. 发明授权
    • Method for controlling a tension of a metal strip in a heat treatment
furnace
    • 控制热处理炉中金属带张力的方法
    • US5739438A
    • 1998-04-14
    • US667640
    • 1996-06-21
    • Hiroshi SawadaKohji OmoriHiroshi YoshimuraTakumi Imajuku
    • Hiroshi SawadaKohji OmoriHiroshi YoshimuraTakumi Imajuku
    • C21D11/00C21D9/56G05D15/01G01L1/26
    • G05D15/01C21D9/564
    • A method for controlling a tension of a metal strip in a heat treatment furnace, comprising (a) travelling the metal strip through a plurality of tapered rolls; (b) measuring a tension (.sigma.) working on the metal strip through at least one of the tapered rolls; (c) computing a critical tension (.sigma..sub.cr) which generates heat buckle based on a thickness of the metal strip, a width of the metal strip, an elastic modulus of the metal strip, a length of a flat roll portion and a roll taper under a hot state; and (d) controlling the tension measured by the step (b) to be over a tension (.sigma..sub.min) sufficient to prevent transverse displacement but less than the critical tension (.sigma..sub.cr) which generates heat buckle. The critical tension (.sigma..sub.cr) which generates heat buckle is calculated by the equation: .sigma..sub.cr =K.multidot.t.sup.A .multidot.(W-FL).sup.B .multidot..theta..sub.h.sup.c .multidot.E, where t is the thickness of the metal strip (mm), W is the width of the metal strip (mm), FL is the length of a flat roll portion, .theta..sub.h is the roll taper (rad) under a hot state, E is the elastic modulus of the metal strip (kgf/mm.sub.2), and K, A, B, C are constants. The tension (.sigma..sub.min) sufficient to prevent transverse displacement is obtained as a minimum value of the tension (.sigma.) satisfying the following equations: .DELTA.D
    • 一种用于控制热处理炉中的金属带的张力的方法,包括:(a)使所述金属带穿过多个锥形辊; (b)通过至少一个所述锥形辊测量在所述金属条上的张力(σ); (c)计算基于金属带的厚度,金属带的宽度,金属带的弹性模量,平坦辊部分的长度和辊锥度来产生热带扣的临界张力(σcr) 在炎热的状态下 和(d)控制由步骤(b)测量的张力超过足以防止横向位移但小于产生热扣的临界张力(σcr)的张力(σmin)。 产生热带扣的临界张力(σcr)由以下公式计算:σcr = KxtAx(W-FL)BxθhcxE,其中t是金属条的厚度(mm),W是金属的宽度 条(mm),FL是平辊部分的长度,θh是热状态下的辊锥度(rad),E是金属带的弹性模量(kgf / mm2),K,A,B ,C是常数。 获得足以防止横向位移的张力(σmin)作为满足以下等式的张力(sigma)的最小值:DELTA D <(1W))/ 2和DELTA D = g(t,W,mu,LS ,E,θh,sigma,Ra,Ra'),其中DELTA D是横向位移量,l是辊筒长度,μ是金属带和辊之间的摩擦系数,LS是线速度,σ 是金属带的张力,Ra是金属带的表面粗糙度,Ra'是辊的表面粗糙度。