CN101885174A - 电动订书机及其工作方法 - Google Patents

电动订书机及其工作方法 Download PDF

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CN101885174A
CN101885174A CN2010101796354A CN201010179635A CN101885174A CN 101885174 A CN101885174 A CN 101885174A CN 2010101796354 A CN2010101796354 A CN 2010101796354A CN 201010179635 A CN201010179635 A CN 201010179635A CN 101885174 A CN101885174 A CN 101885174A
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樋口一雄
岛村昌志
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Abstract

提供一种电动订书机及其工作方法，其通过以下步骤工作：纸摞夹入步骤，使台部和驱动器单元相对移动，由台部和驱动器单元夹入纸摞；订书钉切离步骤，通过成形板将订书钉片的订书钉中位于成形位置的订书钉折弯为U形，并通过移动设于驱动器单元的驱动器而将U形的订书钉从订书钉片切离；贯通步骤，进一步移动驱动器，使订书钉的脚部贯通纸摞；钳紧步骤，通过钳紧装置将贯通了纸摞的脚部向内侧折弯；和纸摞释放步骤，使台部和驱动器单元向远离的方向相对移动而释放纸摞。台部和驱动器单元的相对移动、成形板、驱动器及钳紧装置由单一马达驱动。贯通步骤和钳紧步骤以外的步骤中的马达的驱动速度比贯通步骤和钳紧步骤中的马达的驱动速度慢。

Description

电动订书机及其工作方法
技术领域
本发明涉及一种电动订书机及电动订书机的工作方法，更详细地说，涉及通过实现纸摞夹入步骤、订书钉切离步骤、贯通步骤、钳紧步骤和纸摞释放步骤而进行装订处理的电动订书机以及电动订书机中的马达驱动方法。
背景技术
以往，公知有如下的电动订书机：电动地使订书钉贯通层叠的多张纸的摞(以下称为纸摞)而进行纸摞的装订作业(例如参照专利文献1、专利文献2、专利文献3)。
专利文献1：JP-A-2001-191265
专利文献2：JP-A-08-187681
专利文献3：JP-A-2006-116638
图7是表示电动订书机的一例的透视图。在电动订书机1的框架2的前端内部，安装有进行订书钉的成形及射出的驱动器单元3。此外，在框架2上设置有相对于框架2升降自如地安装的紧钳臂4，在该紧钳臂4的前端部设置有具备平角钉型的钳紧装置5的台部10。
订书钉盒6从上方向框架2装填，订书钉盒6内的订书钉片由未图示的传送机构逐个地传送到前方的成形板和驱动器7的位置。订书钉片的前端的订书钉由成形板折弯成形为U形，进而传送到驱动器7的正上方位置。将纸插入到驱动器单元3和台部10之间后，紧钳臂4下降而由驱动器单元3和台部10夹入多张纸，对驱动器7上升驱动，使前端的订书钉从订书钉片切离。进一步对驱动器7上升驱动，将订书钉的脚部打入纸后，驱动钳紧装置5，通过钳紧装置5将贯通了纸摞的订书钉的两个脚部向内侧折弯，完成纸摞的装订处理。
在一般的电动订书机1中，相对于通过马达的驱动而旋转的主驱动齿轮，设置有将主驱动齿轮的旋转运动转换为升降往复运动的多个摆动臂(紧钳臂4也是其中之一)，在主驱动齿轮通过马达的驱动而旋转1周的期间，执行随着摆动臂的驱动而引起的台部10的升降、成形处理、驱动器单元3进行的订书钉的打入、钳紧装置5进行的钳紧处理等。
具体地说，在主驱动齿轮旋转1周的期间执行以下步骤而通过1个周期的动作完成纸摞的装订：纸摞夹入步骤，台部10向下方移动而夹入纸；订书钉切离步骤，通过成形板将订书钉片的前端的订书钉折弯成形为U形，并且通过驱动器7的上升驱动将折弯的订书钉从订书钉片切离；贯通步骤，通过上升的驱动器7将订书钉贯通纸摞；钳紧步骤，通过钳紧装置5将贯通了纸的订书钉的两侧的脚部向内侧折弯；和纸摞释放步骤，通过使台部10上升而释放被夹持的纸摞。
在进行上述装订处理的电动订书机中，现在对降低装订处理时产生的驱动声音的要求有所提高。作为实现降低电动订书机的驱动声音的方法，考虑了使马达的驱动速度一律变慢的方法。但是，若将设计为以24V的电压驱动的电动订书机，用12V的电压进行驱动等以使马达的驱动速度一律变慢，则存在以下问题：导致使订书钉贯通纸摞时的贯通性能下降、钳紧订书钉的脚部的处理所需的钳紧力下降等，从而电动订书机的装订性能(可装订的纸的张数等)下降。
另一方面，为了在防止订书钉的贯通性能下降、钳紧处理中的钳紧能力的下降的同时，减慢马达的驱动速度，也考虑了采用在低速旋转下也具有高转矩特性的高性能的马达。但是，若使用高性能马达则存在以下问题：导致电动订书机的价格上升，并且伴随马达的种类的增加而导致产品数量增大，管理成本、配件成本也会上升。此外，还考虑了设置齿轮箱或设置皮带变速机构的方法，但同样会导致价格上升、产品数量增大。
进而，还考虑了将电动订书机整个收容到隔音箱等中以防止驱动声音传播到外部的方法，但存在导致产品外形大型化的问题。
发明内容
本发明的一个以上的实施例提供一种电动订书机及电动订书机的工作方法，其不会导致电动订书机的配件数量的增加、产品外形的大型化，并可降低装订处理时的驱动声音。
根据本发明的一个以上的实施例，电动订书机的工作方法具有：纸摞夹入步骤，使台部10和驱动器单元3相对移动，由上述台部10和上述驱动器单元3夹入纸摞19；订书钉切离步骤，通过设于上述驱动器单元3的成形板8将订书钉片20的订书钉中位于成形位置的订书钉折弯为U形，并通过移动设于上述驱动器单元3的驱动器7而将U形的订书钉22从订书钉片20切离；贯通步骤，进一步移动上述驱动器7，使订书钉的脚部24贯通纸摞19；钳紧步骤，通过钳紧装置5将贯通了纸摞19的上述订书钉22的上述脚部24向内侧折弯；和纸摞释放步骤，使上述台部10和上述驱动器单元3向远离的方向相对移动，从而释放纸摞19。其中，台部10和驱动器单元3的相对移动、上述成形板8、上述驱动器7以及上述钳紧装置5，由单一的马达13驱动。除了上述贯通步骤和上述钳紧步骤以外的步骤中的上述马达13的驱动速度比上述贯通步骤和上述钳紧步骤中的上述马达13的驱动速度慢。
此外，根据本发明的一个以上的实施例，电动订书机具备马达13、台部10、驱动器单元3、设于上述驱动器单元3内的成形板8、设于上述驱动器单元3内的驱动器7、钳紧装置5和马达控制单元17、18。该电动订书机1通过以下步骤工作：纸摞夹入步骤，使台部10和驱动器单元3相对移动，由上述台部10和上述驱动器单元3夹入纸摞19；订书钉切离步骤，通过成形板8将订书钉片20的订书钉中位于成形位置的订书钉折弯为U形，并通过移动上述驱动器7而将U形的订书钉22从订书钉片20切离；贯通步骤，进一步移动上述驱动器7，使订书钉22的脚部24贯通纸摞19；钳紧步骤，通过钳紧装置5将贯通了纸摞的上述订书钉22的上述脚部24向内侧折弯；和纸摞释放步骤，使上述台部10和上述驱动器单元3向远离的方向相对移动，从而释放纸摞19。其中，台部10和驱动器单元3的相对移动、上述成形板8、上述驱动器7以及上述钳紧装置5，由上述马达13驱动。上述马达控制单元17、18控制上述马达13，以使除了上述贯通步骤和上述钳紧步骤以外的步骤中的上述马达13的驱动速度比上述贯通步骤和上述钳紧步骤中的上述马达13的驱动速度慢。
在上述实施例的电动订书机及电动订书机的工作方法中，马达控制单元在除了贯通步骤和钳紧步骤以外的处理步骤中降低了马达的驱动速度，因此可以降低装订处理中的马达的驱动声音、构成电动订书机的各种工作部件的工作声音、各种工作部件彼此冲击性抵接时产生的冲击声音等。
另一方面，在贯通步骤和钳紧步骤中，不降低马达的驱动速度，维持了必要的输出扭矩，因此在为了使订书钉的脚部贯通纸摞而需要高贯通荷载的贯通步骤中可以确保充足的马达的驱动力，此外在为了将订书钉的脚部折弯成形而需要高折弯荷载的钳紧步骤中可以确保充足的马达的驱动力。因此，在降低马达的驱动速度而实现驱动声音等的降低的情况下，也可以在贯通步骤和钳紧步骤中确保必要的马达的驱动力，因此可以防止电动订书机的装订性能的下降。
进而，根据上述实施例，可以由马达控制单元进行马达的驱动速度的控制，因此用于实现纸摞夹入步骤、订书钉切离步骤、贯通步骤、钳紧步骤及纸摞释放步骤的构成配件，例如台部的升降机构、驱动器单元的结构、钳紧装置的结构等均不进行变更等，便可在各种时序和驱动速度下进行马达的驱动速度控制。因此，无需使用高性能马达、齿轮箱、皮带变换机构等特别的构成配件，此外可以抑制伴随配件数量增加引起的产品种类的增加、管理成本/配件成本的上升。
此外，上述电动订书机的马达驱动方法优选，具有伴随上述马达的旋转驱动而旋转的主驱动齿轮以及用于检测该主驱动齿轮的旋转状态的旋转状态检测装置，上述马达控制单元根据由上述旋转状态检测装置检测出的上述主驱动齿轮的旋转状态，判断包含上述贯通步骤和上述钳紧步骤的处理步骤的处理时序，进行上述马达的驱动速度的降低。
进而，上述电动订书机优选，具有伴随上述马达的旋转驱动而旋转的主驱动齿轮以及用于检测该主驱动齿轮的旋转状态的旋转状态检测装置，上述马达控制单元根据由上述旋转状态检测装置检测出的上述主驱动齿轮的旋转状态，判断包含上述贯通步骤和上述钳紧步骤的处理步骤的处理时序，进行上述马达的驱动速度的降低。
这样，通过用旋转状态检测装置检测主驱动齿轮的旋转状态，马达控制单元判断包含贯通步骤和钳紧步骤的处理步骤的处理时序，在该结构中，可以根据伴随马达的旋转驱动而旋转的主驱动齿轮的旋转状态，执行装订处理的各处理步骤，因此可以通过求出主驱动齿轮的旋转状态而容易地判断各种处理步骤的处理时序。
其他特征及效果通过实施例的记载以及权利要求而得以明确。
附图说明
图1是表示在典型实施例的电动订书机中进行马达的驱动控制的功能部的简要构成的框图。
图2是表示根据典型实施例的主驱动齿轮的旋转角度驱动的台部、驱动器单元、钳紧装置的驱动状况的图。
图3(a)是表示由台部和驱动器单元夹入纸摞的状态的图。图3(b)是表示由成形板将直线状的订书钉成形为U形的状态和由驱动器将U形订书钉从订书钉片切离的状态的图。图3(c)是表示U形订书钉的构成的图。
图4(a)和图4(b)是阶段性地表示U形订书钉贯通纸摞的状态的图。
图5(a)和图5(b)是表示进行由2张纸构成的纸摞的装订处理时的马达的驱动声音、驱动声音的A特性和马达中的电流值变化的图表，图5(a)表示不进行PWM控制的情况，图5(b)表示将占空比设定为10％而进行了PWM控制的情况。
图6(a)和图6(b)是表示进行由50张纸构成的纸摞的装订处理时的马达的驱动声音、驱动声音的A特性和马达中的电流值变化的图表，图6(a)表示不进行PWM控制的情况，图6(b)表示将占空比设定为10％而进行了PWM控制的情况。
图7是用于说明一般的电动订书机的结构的透视图。
标号说明
1、12…电动订书机
2…框架
3…驱动器单元
4…紧钳臂
5…钳紧装置
6…订书钉盒
7…驱动器
10…台部
13…马达
14…主驱动齿轮
15…旋转检测部(旋转状态检测装置)
16…电源
17…PWM控制电路(马达控制单元)
18…控制部(马达控制单元)
19…纸摞
20…订书钉片
22…U形订书钉(订书钉)
23…(U形订书钉的)顶部
24…(U形订书钉的)脚部
具体实施方式
参照附图对本发明的典型实施例的电动订书机进行说明。另外，典型实施例的电动订书机具有与已经说明的一般的电动订书机1同样的结构。因此，对于由与已经说明的结构相同的结构构成的部分标以相同的标号，并在典型的实施例中省略对其的说明。
图1是表示在典型实施例的电动订书机中进行马达的驱动控制的功能部分的简要结构的框图。
电动订书机12具有：马达13；由马达13进行旋转驱动的主驱动齿轮14；检测主驱动齿轮14的旋转状态的旋转检测部(旋转状态检测装置)15；进行从电源16向马达13供给的电压的控制的PWM(PulseWidth Modulation，脉宽调制)控制电路(马达控制单元)17；以及对PWM控制电路17进行PWM控制信号的输出的控制部(马达控制单元)18。
马达13由一般的换向器电动机构成，根据该马达13的驱动进行主驱动齿轮14的旋转驱动。
在主驱动齿轮14上直接或经其他齿轮间接地连接有多个摆动臂，其用于随着主驱动齿轮14的旋转进行台部(台部)10的升降驱动、成形板的驱动、驱动器7的驱动、钳紧装置5的驱动。通过主驱动齿轮14旋转1周，进行台部10、驱动器单元(驱动器单元3)(成形板及驱动器7)、钳紧装置5的驱动，执行纸摞的装订处理。
旋转检测部15由光遮断器构成。在主驱动齿轮14上设有狭缝，并配置有夹着该狭缝而相对设置的发光部(发光二极管)和受光部(光电二极管)。在光遮断器中，由受光部检测从发光部输出的光，将检测光的计数数量信息作为旋转信息输出到控制部18。
PWM控制电路17将从电源16向马达13供给的电源的电压值保持为一定值并且通过脉冲控制来进行电压的接通/切断(ON/OFF)控制，从而调节进行电压输出的时间(宽度)，进行马达13的驱动控制。
PWM控制电路17由一般的FET(场效应晶体管)构成，根据从控制部18接收的PWM控制信号来进行电压的接通/切断控制。通过PWM控制电路17的电压控制，根据占空比来调整向马达13供给的电量。
控制部18具有以下作用：伴随从旋转检测部15接收到的旋转信息，将用于控制PWM控制电路17的脉冲控制状态的PWM控制信号输出到PWM控制电路17。具体地说，控制部18根据旋转信息检测主驱动齿轮14的旋转角度，并根据检测出的旋转角度，进行PWM控制电路17中的占空比的变更。
图2表示根据主驱动齿轮14的旋转角度而驱动的台部10、驱动器单元3、钳紧装置5的驱动状况。
在主驱动齿轮14的旋转角度从0度到20度的期间，成为台部10在可升降范围的最高位置待机的状态(图2中开状态)，此外，成为驱动器单元3在可升降范围的最低位置待机的状态(图2中待机状态)，进而成为钳紧装置5的紧钳突出的状态(图2中出状态)。将该状态称为原始位置状态，如图2所示，在旋转角度从0度到20度的期间以及从340度到360度的期间，在电动订书机12中维持原始位置状态。
在原始位置状态下，将纸摞引导到驱动器单元3和台部10之间，开始马达13的驱动，而旋转驱动主驱动齿轮14时，在控制部18中根据由旋转检测部15检测的旋转信息来进行主驱动齿轮14的旋转状态检测。
旋转角度超过20度后，开始向钳紧装置5的紧钳退避的位置(图2中待机状态)移动。并且，旋转角度超过28度后，如图3(a)所示，台部10开始下降移动，在到旋转角度达到90度的期间，成为由台部10和驱动器单元3夹持纸摞的状态。从而，在主驱动齿轮14的旋转角度从28度到90度的期间(图2中箭头(1)的期间)进行的台部10的驱动处理对应于纸摞夹入步骤。
在典型实施例的电动订书机12中，如图2及图3(a)所示，在纸摞19较厚时，在旋转角度为60度的位置成为台部10与纸摞19抵接的状态，之后，成为台部10的动作因与纸摞19的抵接而停止的状态(图2中箭头(2)的范围)。此外，在纸摞19较薄时，在旋转角度为90度的位置成为台部10与纸摞19抵接的状态，之后，成为台部10的动作因与纸摞19的抵接而停止的状态。
此外，旋转角度超过了大约70度后，移动驱动器单元3的成形板，由连接的直线订书钉构成的订书钉片20的位于成形位置的订书钉被折弯成形(成形处理)为U形(参照图3(b))。在典型实施例的电动订书机12中，将折弯成形后的订书钉称为U形订书钉。如图3(c)所示，U形订书钉22由位于底面的顶部(crown part)23和在顶部23的左右端部折弯而立起的左右的脚部24构成。
订书钉片20的直线订书钉由成形板折弯成形为U形订书钉22后，驱动器7开始上升，向上方推压U形订书钉22的顶部23。通过该驱动器7的上升，如图3(b)所示U形订书钉22从订书钉片20切离(切断)。在典型实施例的电动订书机12中，如图2的(3)所示，在旋转角度大约为105度时，进行U形订书钉22的切离。从而，在主驱动齿轮14从70度到105度旋转的状态下进行的成形处理及U形订书钉的切断处理(图2中箭头(4)的范围的处理)对应于订书钉切离步骤。
然后，切离的U形订书钉22伴随驱动器7的上升，如图4(a)所示，在脚部24朝向纸摞19方向的状态下向纸摞19移动，脚部24的前端与纸摞19的最下面抵接(图2中的(5))。之后，进一步随着驱动器7的上升，如图4(b)所示，U形订书钉22的脚部24开始纸摞19的贯通。在典型实施例中，从大约115度(图2中的(5))U形订书钉22的脚部24开始纸摞19的贯通。
进而，通过驱动器7上升，U形订书钉22的脚部24依次贯通纸摞19，在旋转角度约为165度时，如图4(b)所示，成为脚部24的前端贯通了所有的纸的状态(图2中箭头(6)的期间的状态)。之后，通过驱动器7进一步上升，如图2的(7)所示，在约187度时，顶部23到达纸摞19的最下面。通过驱动器7的进一步上升，直到旋转角度为220度为止，继续进行U形订书钉22对纸摞19的压入处理(图2中箭头(8)期间的处理以及图4(b))，维持U形订书钉22对纸摞19向台部10方向的推压状态(追加压入状态)。
另外，在U形订书钉22的压入处理结束的约220度时(图2中的A点)，从U形订书钉22向纸摞19施加最重的荷载。在主驱动齿轮14从115度到220度旋转的状态下进行的U形订书钉22的贯通处理(图2中箭头(9)期间的处理)对应于贯通步骤。
之后，主驱动齿轮14的旋转角度超过约220度后，开始钳紧装置5的驱动，紧钳开始将从纸摞19的最上面贯出的U形订书钉22的脚部24向两个脚部24的内侧折弯的处理。直到到达260度(图2中箭头(10)的范围)，完成脚部的折弯处理。钳紧装置5进行的脚部的折弯处理的折弯荷载最大的是该260度的时刻(图2中的B点)。在主驱动齿轮14从220度到260度旋转的状态(图2中箭头(10))中进行的由钳紧装置5进行的脚部24的折弯处理对应于钳紧步骤。
之后，旋转角度从275度到330度的期间进行台部10的上升移动。在从280度到340度的期间进行驱动器7的下降处理(向待机位置的返回处理)。从而，驱动器单元3及台部10返回到原始位置。并且，在剩余的从340度到360度的期间，维持台部10、驱动器单元3、钳紧装置5在原始位置待机的状态，结束一系列的装订处理。在主驱动齿轮14从275度到340度旋转的状态下进行的台部10的上升移动处理及驱动器7的下降移动处理(图2中箭头(11)的期间的处理)对应于纸摞释放步骤。
控制部18根据由旋转检测部15检测的旋转信息来判断上述装订处理的处理状态。控制部18，在包含贯通步骤中将最重的荷载从驱动器7经U形订书钉22施加到纸摞19的220度的从135度到222度的时序α(图2中箭头α的范围)、以及包含钳紧步骤中折弯荷载的值为最高值的260度的245度到265度的时序β(图2中箭头β的范围)中，以使PWM控制电路17中的PWM输出状态为占空比100％的方式设定PWM控制信号的内容，将PWM控制信号输出到PWM控制电路17。
另一方面，控制部18在上述时序α和时序β以外的处理过程中，以使PWM控制电路17的PWM输出状态为较低的值的方式设定PWM控制信号，并将PWM控制信号输出到PWM控制电路17。
如上所述，在旋转角度为220度时(时序α的处理过程)，成为从驱动器7施加到纸摞19的荷载最高的状态，因此为了实现充足的加压处理，需要将由马达13供给的电压维持为额定状态。此外，在旋转角度为260度时(时序β的处理过程)，成为紧钳的折弯荷载最高的状态，因此为了实现充足的折弯处理，需要将供给到马达13的电压维持为额定状态。
而在上述时序α和时序β以外的处理过程中，由于在驱动器单元3、钳紧装置5中没有施加高荷载，因此即使减少供给到马达13的电压，也不会对装订处理产生阻碍。因此，控制部18通过PWM控制在PWM控制电路17中减少向马达13供给的电压，从而可以实现马达的驱动声音的降低。
图5(a)及图5(b)是作为一例表示在电压值设定为24V的马达中进行由2张纸构成的纸摞的装订处理时马达的驱动声音、驱动声音的A特性、马达的电流值变化的图表，图5(a)示出了在装订处理中将电压值恒定保持为24V而不进行PWM控制的情况，图5(b)示出了在纸摞释放步骤中将占空比设定为10％而进行了PWM控制的情况。
另外，A特性正式地说称为A特性频率加权声压级(A weightedsound pressure level)，用于对应于人类耳朵的灵敏度而对测定的驱动声音的声压级进行听觉上的校正。
比较图5(a)的图表和图5(b)的图表，在不进行PWM控制时为63.6dB的A特性的值，在进行PWM控制的情况下变为61.2dB，可以实现2.4dB的静音化。此外，关于在纸摞释放步骤中产生的马达13的驱动声音，与不进行PWM控制的驱动声音值(图5(a)的图表的A部的位置)相比，进行PWM控制的驱动声音值(图5(b)的图表的B部的位置)示出了显著低的值。
此外，在通过PWM控制进行了马达13的低速驱动时，一系列的装订处理所需要的1周期的时间与不进行PWM控制时相比多出了30msec，但若为该程度的时间延迟，可以判断出是装订处理时间感觉不到延迟的水平。
图6(a)及图6(b)是表示在电压值设定为24V的马达中进行由50张纸构成的纸摞的装订处理时马达13的驱动声音、驱动声音的A特性、马达13的电流值变化的图表，图6(a)示出了在装订处理中将电压值恒定保持为24V而不进行PWM控制的情况，图6(b)示出了在纸摞释放步骤中将占空比设定为10％而进行了PWM控制的情况。
比较图6(a)的图表和图6(b)的图表，在不进行PWM控制时为62.0dB的A特性的值，在进行PWM控制的情况下变为60.0dB，可以实现2.0dB的静音化。此外，关于在纸摞释放步骤中产生的马达13的驱动声音，与不进行PWM控制的驱动声音值(图6(a)的图表的A部的位置)相比，进行PWM控制的驱动声音值(图6(b)的图表的B部的位置)示出了显著低的值。
此外，在通过PWM控制进行了马达13的低速驱动时，装订处理的1周期的时间与不进行PWM控制时相比多出了20msec，但若为该程度的时间延迟，可以判断出是装订处理时间感觉不到延迟的水平。
从而，在典型实施例的电动订书机12中，在驱动器单元3、钳紧装置5需要高荷载的装订处理的处理时序中，将供给到马达的电压维持为额定状态，因此可以防止电动订书机中装订性能的下降，而在驱动器单元、钳紧装置不需要高荷载的处理时序中，通过PWM控制减少供给到马达的电压，从而不会对装订处理产生阻碍便可实现马达的驱动声音的降低。
进而，典型实施例的电动订书机12，通过从控制部18输出的PWM控制信号，由PWM控制电路17进行马达13的驱动速度控制，因此用于实现纸摞夹入步骤、订书钉切离步骤、贯通步骤、钳紧步骤及纸摞释放步骤的构成配件，例如台部10的升降机构、驱动器单元的结构、钳紧装置的结构等均无任何变更等，便能以各种时序及驱动速度进行马达的驱动速度控制。
从而，根据控制部18的控制进行马达13的速度控制，因此无需使用高性能马达、齿轮箱、皮带变换机构等特别的构成配件，并可以抑制伴随配件数量增加而引起的产品种类的增加、管理成本/配件成本的上升。
以上，根据发明的典型实施例并利用附图而详细地说明了本发明的电动订书机及电动订书机的工作方法，但本发明的电动订书机及电动订书机的工作方法并不仅限于上述典型实施例的电动订书机12。对于本领域技术人员来说，可以在权利要求记载的范围内想到各种变更例或修正例，这些也当然属于本发明的技术范围。
例如，在上述典型实施例的电动订书机12中，如图5(a)、图5(b)及图6(a)、图6(b)所示，示出了仅在纸摞释放步骤中进行PWM控制的情况，但进行PWM控制的时序并不仅限于纸摞释放步骤，也可以是纸摞夹入步骤、订书钉切离步骤等。
此外，在上述电动订书机12中，对于作为实现减少向马达13供给的电压的方法而使用PWM控制的情况进行了说明，但减少向马达13供给的电压的方法并不仅限于PWM控制，也可以使用其他方法、例如PAM(Pulse Amplitude Modulation，脉幅调制)控制等。
进而，在上述典型实施例的电动订书机12中，对于作为检测主驱动齿轮14的旋转角度状态的结构的一例而使用光遮断器的构成例进行了说明，但检测旋转角度状态的结构并不仅限于光遮断器。只要是可以通过控制构件判断装订处理中的处理内容及处理时序的结构，可以使用任意方法。
例如，可以构成为控制构件根据主驱动齿轮14的旋转开始后的经过时间来判断装订处理的处理内容/处理时序，也可以构成为通过使用根据主驱动齿轮的预定的旋转操作输出的时序传感器，控制构件判断装订处理的处理内容。
此外，在上述典型实施例的电动订书机12中，示出了使台部10移动而通过台部10和驱动器单元3夹入纸摞19的机构，但本发明的电动订书机不限于这种结构，也可以是驱动器单元侧向台部移动而夹入纸摞的机构，或移动驱动器单元和台部双方而夹入纸摞的机构。总之，只要是驱动器单元和台部相对移动而夹入纸摞19的机构即可。
在上述典型实施例中，台部10配置在上方、驱动器单元3配置在下方。但是，台部10和驱动器单元3的相对位置不限于此。例如也可以将台部10配置在下方、驱动器单元3配置在上方。或将台部10配置在左侧、驱动器单元3配置在右侧。或将台部10配置在右侧、驱动器单元3配置在左侧。

Claims (6)

1.一种电动订书机的工作方法，其特征在于，
具有：纸摞夹入步骤，使台部(10)和驱动器单元(3)相对移动，由上述台部(10)和上述驱动器单元(3)夹入纸摞(19)；
订书钉切离步骤，通过设于上述驱动器单元(3)的成形板(8)将订书钉片(20)的订书钉中位于成形位置的订书钉折弯为U形，并通过移动设于上述驱动器单元(3)的驱动器(7)而将U形的订书钉(22)从订书钉片(20)切离；
贯通步骤，进一步移动上述驱动器(7)，使订书钉的脚部(24)贯通纸摞(19)；
钳紧步骤，通过钳紧装置(5)将贯通了纸摞(19)的上述订书钉(22)的上述脚部(24)向内侧折弯；和
纸摞释放步骤，使上述台部(10)和上述驱动器单元(3)向远离的方向相对移动，从而释放纸摞(19)，
其中，台部(10)和驱动器单元(3)的相对移动、上述成形板(8)、上述驱动器(7)以及上述钳紧装置(5)，由单一的马达(13)驱动，
除了上述贯通步骤和上述钳紧步骤以外的步骤中的上述马达(13)的驱动速度比上述贯通步骤和上述钳紧步骤中的上述马达(13)的驱动速度慢。
2.根据权利要求1所述的电动订书机的工作方法，其中，
还具有以下步骤：
检测被上述马达(13)驱动的主驱动齿轮(14)的旋转状态；和
根据检测出的上述主驱动齿轮(14)的旋转状态，判断包含上述贯通步骤和上述钳紧步骤的步骤的处理时序，控制上述马达(13)的驱动速度。
3.一种电动订书机(1)，具备马达(13)、台部(10)、驱动器单元(3)、设于上述驱动器单元(3)内的成形板(8)、设于上述驱动器单元(3)内的驱动器(7)、钳紧装置(5)和马达控制单元(17、18)，其特征在于，
该电动订书机(1)通过以下步骤工作：
纸摞夹入步骤，使台部(10)和驱动器单元(3)相对移动，由上述台部(10)和上述驱动器单元(3)夹入纸摞(19)；
订书钉切离步骤，通过成形板(8)将订书钉片(20)的订书钉中位于成形位置的订书钉折弯为U形，并通过移动上述驱动器(7)而将U形的订书钉(22)从订书钉片(20)切离；
贯通步骤，进一步移动上述驱动器(7)，使订书钉(22)的脚部(24)贯通纸摞(19)；
钳紧步骤，通过钳紧装置(5)将贯通了纸摞的上述订书钉(22)的上述脚部(24)向内侧折弯；和
纸摞释放步骤，使上述台部(10)和上述驱动器单元(3)向远离的方向相对移动，从而释放纸摞(19)，
其中，台部(10)和驱动器单元(3)的相对移动、上述成形板(8)、上述驱动器(7)以及上述钳紧装置(5)，由上述马达(13)驱动，
上述马达控制单元(17、18)控制上述马达(13)，以使除了上述贯通步骤和上述钳紧步骤以外的步骤中的上述马达(13)的驱动速度比上述贯通步骤和上述钳紧步骤中的上述马达(13)的驱动速度慢。
4.根据权利要求3所述的电动订书机，其中，
还具备被上述马达(13)驱动的主驱动齿轮(14)和检测上述主驱动齿轮(14)的旋转状态的旋转状态检测装置(15)，
上述马达控制单元(17、18)根据由上述旋转状态检测装置(15)检测出的上述主驱动齿轮(14)的旋转状态，判断包含上述贯通步骤和上述钳紧步骤的步骤的处理时序，并控制上述马达(13)。
5.一种电动订书机的工作方法，该电动订书机具有马达、台部、驱动器单元、上述驱动器单元内的成形板、上述驱动器单元内的驱动器和钳紧装置，所述工作方法的特征在于，
通过使上述马达以比某速度慢的第一速度旋转，使台部和驱动器单元向彼此靠近的方向相对移动，夹入纸摞；
通过使上述马达以比上述某速度慢的第二速度旋转，使成形板工作，将订书钉片的订书钉中位于成形位置的订书钉折弯为U形；
通过使上述马达以比上述某速度慢的第三速度旋转，使驱动器移动，将折弯的U形订书钉从订书钉片切离；
通过使上述马达以比上述某速度快的第四速度旋转，使驱动器进一步移动，使U形订书钉的脚部贯通纸摞；
通过使上述马达以比上述某速度快的第五速度旋转，使钳紧装置工作，钳紧贯通了纸摞的脚部；
通过使上述马达以比上述某速度慢的第六速度旋转，使台部和驱动器单元向彼此分离的方向相对移动，释放纸摞。
6.一种电动订书机，其特征在于，
具备马达、台部、驱动器单元、设于上述驱动器单元内的成形板、设于上述驱动器单元内的驱动器、钳紧装置和马达控制单元，
上述马达控制单元使上述马达
以比某速度慢的第一速度旋转，以使台部和驱动器单元向彼此靠近的方向相对移动而夹入纸摞；
以比上述某速度慢的第二速度旋转，以使成形板工作而将订书钉片的订书钉中位于成形位置的订书钉折弯为U形；
以比上述某速度慢的第三速度旋转，以使驱动器移动而将折弯的U形订书钉从订书钉片切离；
以比上述某速度快的第四速度旋转，以使驱动器进一步移动而使U形订书钉的脚部贯通纸摞；
以比上述某速度快的第五速度旋转，以使钳紧装置工作而钳紧贯通了纸摞的脚部；
以比上述某速度慢的第六速度旋转，以使台部和驱动器单元向彼此分离的方向相对移动而释放纸摞。
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US20100288814A1 (en) 2010-11-18
US8371393B2 (en) 2013-02-12
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JP5428515B2 (ja) 2014-02-26
EP2251147A3 (en) 2014-09-10

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