図１は、本発明の実施の一形態の現像剤収納容器３０を示す斜視図である。図２は、現像剤収納容器３０を示す正面図である。図３は、現像剤収納容器３０を示す左側面図である。現像剤収納容器３０は、容器本体３１および支持部材３２を含んで構成される。容器本体３１は、略円筒状に形成され、電子写真方式の画像形成に用いる着色トナーなどの現像剤が収納される。支持部材３２は、容器本体３１を、その軸線Ｌ３１まわりに回転自在にして支持する。現像剤収納容器３０は、たとえば１４００グラムの現像剤を収納可能である。以後、容器本体３１の軸線Ｌ３１を、回転軸線Ｌ３１と表記することがある。
FIG. 1 is a perspective view showing a developer container 30 according to an embodiment of the present invention. FIG. 2 is a front view showing the developer storage container 30. FIG. 3 is a left side view showing the developer storage container 30. The developer storage container 30 includes a container main body 31 and a support member 32. The container body 31 is formed in a substantially cylindrical shape, and stores a developer such as colored toner used for electrophotographic image formation. The support member 32 supports the container main body 31 so as to be rotatable around its axis L31. The developer storage container 30 can store, for example, 1400 grams of developer. Hereinafter, the axis L31 of the container body 31 may be referred to as a rotation axis L31.
図４は、容器本体３１を示す正面図である。図５は、容器本体３１を示す左側面図である。図６は、容器本体３１を示す右側面図である。容器本体３１は、第１容器部３３、第２容器部３４および第３容器部３５を含んで構成される。容器本体３１の軸線Ｌ３１方向の長さ寸法Ａ３１は、任意に設定可能であり、たとえば４５８ミリメートルであってもよい。
FIG. 4 is a front view showing the container main body 31. FIG. 5 is a left side view showing the container main body 31. FIG. 6 is a right side view showing the container main body 31. The container body 31 includes a first container part 33, a second container part 34, and a third container part 35. The length dimension A31 of the container body 31 in the direction of the axis L31 can be arbitrarily set, and may be, for example, 458 millimeters.
第１容器部３３は、有底円筒状に形成される。第１容器部３３の軸線方向の長さ寸法Ａ３３は、任意に設定可能であり、たとえば１６０ミリメートルであってもよい。第１容器部３３の内周部には、軸線Ｌ３１まわりに回転駆動されるときに、現像剤を軸線方向に送る送り手段が設けられる。前記送り手段は、図４に示すように、回転方向下流側に向かうにつれて第１容器部３３の軸線方向他端部である開口端部３３ｂから軸線方向一端部である底部３３ａに向かう第１延在方向に延び、半径方向内方に突出する複数の送り部である第１突起片３６を有する。各第１突起片３６は、周方向および軸線方向に間隔をあけて形成され、軸線方向に隣り合う２つの第１突起片３６は、一方の第１突起片３６の回転方向下流側端部と他方の第１突起片３６の回転方向上流側端部とが軸線方向に隣り合うように配置される。各第１突起片３６は、詳細に述べると、回転方向下流側端部が、回転方向上流側端部よりも底部３３ａ側に配置されるように傾斜して円弧状に延びて形成される。
The first container part 33 is formed in a bottomed cylindrical shape. The length dimension A33 in the axial direction of the first container portion 33 can be arbitrarily set, and may be, for example, 160 millimeters. The inner peripheral portion of the first container portion 33 is provided with a feeding means for feeding the developer in the axial direction when being rotated around the axis L31. As shown in FIG. 4, the feed means has a first extension from the opening end 33 b that is the other end in the axial direction of the first container portion 33 toward the bottom 33 a that is one end in the axial direction as it goes downstream in the rotation direction. It has the 1st projection piece 36 which is a several feed part extended in a present direction and protruded in radial direction inward. Each first projection piece 36 is formed at intervals in the circumferential direction and the axial direction, and two first projection pieces 36 adjacent to each other in the axial direction are connected to a downstream end portion in the rotation direction of one first projection piece 36. It arrange | positions so that the rotation direction upstream end part of the other 1st protrusion piece 36 may adjoin an axial direction. More specifically, each first projecting piece 36 is formed so as to be inclined and extend in an arc shape so that the downstream end portion in the rotational direction is disposed closer to the bottom portion 33a than the upstream end portion in the rotational direction.
第１容器部３３の底部３３ａには、図４および図５に示すように、開口端部３３ｂから底部３３ａに向かう方向に突出する連結部である嵌合凸部３７および補給口部４５が形成される。嵌合凸部３７は、複数、本実施の形態では、２個形成される。補給口部４５は、第１容器部３３の底部３３ａの中央部に、回転軸線Ｌ３１方向に貫通し、第１容器部３３の軸線Ｌ３３と同軸の円形状に開口するように形成される。補給口部４５には、その形状に対応して形成され、補給口部４５に着脱可能な補給蓋４６が、補給口部４５との間のシールを達成した状態で、容器本体３１の回転によって離脱しないようにして装着される。補給蓋４６を補給口部４５から離脱させることで、容器本体３１の内空間と外空間とが連通し、この状態で、現像剤を容器本体３１に補給することができる。
As shown in FIGS. 4 and 5, the bottom 33a of the first container part 33 is formed with a fitting convex part 37 and a supply port part 45, which are connecting parts protruding in a direction from the opening end part 33b toward the bottom part 33a. Is done. In the present embodiment, two fitting protrusions 37 are formed. The replenishing port portion 45 is formed in the center portion of the bottom portion 33a of the first container portion 33 so as to penetrate in the direction of the rotation axis L31 and open in a circular shape coaxial with the axis L33 of the first container portion 33. The replenishing port portion 45 is formed corresponding to its shape, and the replenishment lid 46 detachably attached to the replenishing port portion 45 achieves a seal with the replenishing port portion 45, by rotating the container body 31. It is attached so as not to leave. By removing the supply lid 46 from the supply port 45, the inner space and the outer space of the container main body 31 communicate with each other, and the developer can be supplied to the container main body 31 in this state.
嵌合凸部３７は、詳細に述べると、補給口部４５よりも半径方向外方に、互いに第１容器部３３の軸線Ｌ３３に関して大略的に対称な位置に配置される。嵌合凸部３７は、さらに詳細に述べると、図５に示すように、第１容器部３３の底部３３ａから見て回転軸線Ｌ３１を中心とする時計回りの回転方向である回転方向Ｒ上流側部分３７ａは、周方向に垂直に延びる平面を有するように形成される。また嵌合凸部３７の回転方向Ｒ下流側部分は、回転方向Ｒ下流側に向かうにつれて軸線方向他端部側に傾斜するように形成される。嵌合凸部３７の底部３３ａの残余の部分からの軸線Ｌ３３方向への突出量Ａ３７は、任意に設定可能であり、たとえば８ミリメートルであってもよい。このような嵌合凸部３７は、後述する画像形成装置７０に設けられる本体側連結部８３（図２９参照）に着脱可能である。
More specifically, the fitting convex portion 37 is disposed at a position substantially symmetrical with respect to the axis L33 of the first container portion 33 on the outer side in the radial direction from the supply port portion 45. More specifically, the fitting convex portion 37 is, as shown in FIG. 5, the upstream side in the rotational direction R that is the clockwise rotational direction around the rotational axis L31 as viewed from the bottom 33a of the first container portion 33. The portion 37a is formed to have a plane extending perpendicular to the circumferential direction. Moreover, the rotation direction R downstream part of the fitting convex part 37 is formed so that it may incline to the axial direction other end part side as it goes to the rotation direction R downstream. The protrusion amount A37 in the direction of the axis L33 from the remaining portion of the bottom 33a of the fitting convex portion 37 can be arbitrarily set, and may be, for example, 8 millimeters. Such a fitting convex part 37 is detachable from a main body side connecting part 83 (see FIG. 29) provided in the image forming apparatus 70 described later.
また第１容器部３３の底部３３ａにおいて外周面と端面とが連通する面３３ｃは、図４に示すように、開口端部３３ｂから底部３３ａに向かうにつれて半径方向内方に傾斜するような曲面状に形成される。
Further, as shown in FIG. 4, a surface 33 c where the outer peripheral surface and the end surface communicate with each other in the bottom 33 a of the first container portion 33 is a curved surface that is inclined inward in the radial direction from the opening end 33 b toward the bottom 33 a. Formed.
第２容器部３４は、有底円筒状に形成される。第２容器部３４の軸線方向の長さ寸法Ａ３４は、任意に設定可能であり、たとえば２１０ミリメートルであってもよい。第２容器部３４の内周部には、軸線Ｌ３１まわりに回転駆動されるときに、現像剤を軸線方向に送る送り手段が設けられる。前記送り手段は、図４に示すように、回転方向下流側に向かうにつれて第２容器部３４の軸線方向一端部である開口端部３４ｂから軸線方向他端部である底部３４ａに向かう第２延在方向に延び、半径方向内方に突出する複数の送り部である第２突起片３９を有する。各第２突起片３９は、周方向および軸線方向に間隔をあけて形成され、軸線方向に隣り合う２つの第２突起片３９は、一方の第２突起片３９の回転方向下流側端部と他方の第２突起片３９の回転方向上流側端部とが軸線方向に隣り合うように配置される。各第２突起片３９は、詳細に述べると、回転方向下流側端部が、回転方向上流側端部よりも底部３４ａ側に配置されるように傾斜して円弧状に延びて形成される。
The second container part 34 is formed in a bottomed cylindrical shape. The length dimension A34 in the axial direction of the second container portion 34 can be arbitrarily set, and may be 210 millimeters, for example. The inner peripheral portion of the second container portion 34 is provided with a feeding means for feeding the developer in the axial direction when being rotated around the axis L31. As shown in FIG. 4, the feeding means has a second extension extending from the opening end 34 b that is one end in the axial direction of the second container portion 34 toward the bottom 34 a that is the other end in the axial direction as it goes downstream in the rotation direction. It has the 2nd projection piece 39 which is a some feed part extended in a present direction and protruded in radial direction. Each second projection piece 39 is formed at intervals in the circumferential direction and the axial direction, and the two second projection pieces 39 adjacent to each other in the axial direction are connected to the downstream end in the rotational direction of one second projection piece 39. It arrange | positions so that the rotation direction upstream end part of the other 2nd protrusion piece 39 may adjoin an axial direction. More specifically, each of the second projecting pieces 39 is formed to be inclined and extend in an arc shape so that the downstream end portion in the rotation direction is disposed closer to the bottom portion 34a than the upstream end portion in the rotation direction.
第２容器部３４の軸線方向の長さ寸法Ａ３４は、第１容器部３３の軸線方向の長さ寸法Ａ３３よりも長く、たとえば３０ミリメートル以上長く設定される。前述したように、第１容器部３３の軸線方向の長さ寸法Ａ３３は、任意に設定可能であり、たとえば１５０ミリメートルであってもよく、第２容器部３４の軸線方向の長さ寸法Ａ３４は、任意に設定可能であり、たとえば２１５ミリメートルであってもよい。また第１容器部３３の第１突起片３６を除く内周部の内径Ｄ３３、および第２容器部３３の第２突起片３９を除く内周部の内径Ｄ３４は、任意に設定可能であり、たとえば１０５ミリメートルであってもよい。軸線方向に隣接する一対の第１突起片３６および第２突起片３９の間隔Ａ１は、任意に設定可能であり、たとえば１５ミリメートルであってもよい。
The length dimension A34 of the second container part 34 in the axial direction is set longer than the length dimension A33 of the first container part 33 in the axial direction, for example, 30 mm or longer. As described above, the length dimension A33 of the first container portion 33 in the axial direction can be arbitrarily set, for example, 150 mm, and the length dimension A34 of the second container portion 34 in the axial direction is It can be set arbitrarily, and may be 215 millimeters, for example. Further, the inner diameter D33 of the inner peripheral portion excluding the first protrusion piece 36 of the first container portion 33 and the inner diameter D34 of the inner peripheral portion excluding the second protrusion piece 39 of the second container portion 33 can be arbitrarily set. For example, it may be 105 millimeters. An interval A1 between the pair of first protrusions 36 and second protrusions 39 adjacent in the axial direction can be arbitrarily set, and may be, for example, 15 millimeters.
第１突起片３６の第１延在方向の長さ寸法Ａ３６および第２突起片３９の第２延在方向の長さ寸法Ａ３９は、第１容器部３３の内周長および第２容器部３４の内周長の１６分の１以上８分の３以下程度であることが望ましい。第１突起片３６の第１延在方向の長さ寸法Ａ３６および第２突起片３９の第２延在方向の長さ寸法Ａ３９が、第１容器部３３の内周長および第２容器部３４の内周長の１６分の１よりも短いと、現像剤の送り能力が小さくなる。また第１突起片３６の第１延在方向の長さ寸法Ａ３６および第２突起片３９の第２延在方向の長さ寸法Ａ３９が、第１容器部３３の内周長および第２容器部３４の内周長の８分の３よりも長くなると、容器本体３１の強度が低下して好ましくない。また第１突起片３６および第２突起片３９の送り能力が高すぎると、排出孔の近傍で現像剤の凝集が生じる可能性があり好ましくない。本実施の形態では、第１突起片３６の第１延在方向の長さ寸法Ａ３６および第２突起片３９の第２延在方向の長さ寸法Ａ３９は、任意に設定可能であり、たとえば６０ミリメートルであってもよい。また周方向に隣り合う２つの第１突起片３６の間隔および周方向に隣り合う２つの第２突起片３９の間隔は、任意に設定可能であり、たとえば５０ミリメートルであってもよい。
The length dimension A36 of the first projecting piece 36 in the first extending direction and the length dimension A39 of the second projecting piece 39 in the second extending direction are the inner peripheral length of the first container part 33 and the second container part 34. It is desirable that it is about 1/16 or more and 3/8 or less of the inner peripheral length. The length dimension A36 in the first extending direction of the first protruding piece 36 and the length dimension A39 in the second extending direction of the second protruding piece 39 are the inner peripheral length of the first container part 33 and the second container part 34. When the length is shorter than 1/16 of the inner peripheral length of the developer, the developer feeding capability is reduced. The length dimension A36 of the first projecting piece 36 in the first extending direction and the length dimension A39 of the second projecting piece 39 in the second extending direction are the inner peripheral length of the first container section 33 and the second container section. If it is longer than three-eighths of the inner peripheral length of 34, the strength of the container body 31 is undesirably lowered. Further, if the feeding ability of the first protrusion piece 36 and the second protrusion piece 39 is too high, the developer may be aggregated in the vicinity of the discharge hole, which is not preferable. In the present embodiment, the length dimension A36 of the first projecting piece 36 in the first extending direction and the length dimension A39 of the second projecting piece 39 in the second extending direction can be arbitrarily set, for example 60 It may be millimeters. The interval between the two first protrusions 36 adjacent in the circumferential direction and the interval between the two second protrusions 39 adjacent in the circumferential direction can be arbitrarily set, and may be, for example, 50 millimeters.
また第１突起片３６および第２突起片３９の第１容器部３３および第２容器部３４の内周部の残余の部分からの半径方向内方への突出量Ａ２は、１ミリメートル以上１０ミリメートル以下程度が望ましい。前記突出量Ａ２を１０ミリメートルよりも大きくすることによって、第１突起片３６および第２突起片３９の現像剤の送り能力は高くなるが、送り能力が高すぎると、排出孔の近傍において現像剤が凝集する可能性があり好ましくない。また前記突出量Ａ２を１０ミリメートルよりも大きくすると、ブロー成型によって第１突起片３６および第２突起片３９を設けることが困難になるという問題も生じる。逆に前記突出量Ａ２が１ミリメートル未満となると、現像剤の送り能力が小さくなり、排出孔への必要充分な量の現像剤を送ることができなくなる。本実施の形態おいて、第１突起片３６および第２突起片３９の内周部の残余の部分からの半径方向内方への突出量Ａ２は、たとえば６ミリメートルであってもよい。また第１突起片３６および第２突起片３９の数は多い方が送り能力は大きくなり、本実施の形態では、第１突起片３６は２６個、第２突起片３９は３８個設けられてもよい。
Further, the protruding amount A2 in the radially inward direction from the remaining portion of the inner peripheral portion of the first container portion 33 and the second container portion 34 of the first protrusion piece 36 and the second protrusion piece 39 is 1 millimeter or more and 10 millimeters. The following degree is desirable. By making the protrusion amount A2 larger than 10 millimeters, the developer feeding ability of the first protrusion piece 36 and the second protrusion piece 39 is increased. However, if the feeding ability is too high, the developer is near the discharge hole. May agglomerate, which is not preferable. Further, when the protruding amount A2 is larger than 10 millimeters, there arises a problem that it is difficult to provide the first protruding piece 36 and the second protruding piece 39 by blow molding. On the other hand, when the protruding amount A2 is less than 1 millimeter, the developer feeding capability is reduced, and a necessary and sufficient amount of developer cannot be fed to the discharge hole. In the present embodiment, the projecting amount A2 radially inward from the remaining portions of the inner peripheral portions of the first projecting piece 36 and the second projecting piece 39 may be 6 millimeters, for example. Further, as the number of the first projecting pieces 36 and the second projecting pieces 39 increases, the feeding ability increases. In the present embodiment, 26 first projecting pieces 36 and 38 second projecting pieces 39 are provided. Also good.
また第１突起片３６および第２突起片３９の接線と、第１容器部３３および第２容器部３４の周方向の接線との成す角度αは、２度以上４５度以下、さらに好ましくは５度以上３０度以下が望ましい。本実施の形態において、前記角度αは、たとえば約９度であってもよい。容器本体３１の現像剤の送り能力は、前述のような第１突起片３６および第２突起片３９の幾何学的条件によって決定され、容器本体３１に現像剤が満杯の状態から現像剤が完全に無くなる直前の状態まで、排出孔４３から常に適量を排出できるように決定される。
The angle α formed between the tangent line of the first protrusion piece 36 and the second protrusion piece 39 and the circumferential tangent line of the first container part 33 and the second container part 34 is 2 degrees or more and 45 degrees or less, more preferably 5 More than 30 degrees and less than 30 degrees are desirable. In the present embodiment, the angle α may be about 9 degrees, for example. The developer feeding ability of the container body 31 is determined by the geometrical conditions of the first protrusion piece 36 and the second protrusion piece 39 as described above, and the developer is completely discharged from the state where the container body 31 is full. It is determined so that an appropriate amount can always be discharged from the discharge hole 43 until the state immediately before disappearing.
第２容器部３４の底部３４ａにおいて、すくなくとも外周面と端面とが連通する面は、開口端部３４ｂから底部３４ａに向かうにつれて半径方向内方に傾斜するような曲面状に形成される。詳細に述べると、第２容器部３４の底部３４ａの端面３４ｃは、その中心部が開口端部３４ｂから底部３４ａに向かう方向に突出するような部分球面状に形成される。第２容器部３４の開口端部３４ｂの端面から底部３４ａ寄りに間隔をあけた位置における外周部には、半径方向外方に突出して案内突起片４０が、周方向に間隔をあけて複数個、本実施の形態では２個設けられる。案内突起片４０の軸線方向の寸法は、任意に設定可能であり、たとえば２．５ミリメートルであってもよい。
In the bottom portion 34a of the second container portion 34, at least the surface where the outer peripheral surface and the end surface communicate with each other is formed in a curved shape that inclines radially inward from the opening end portion 34b toward the bottom portion 34a. Specifically, the end surface 34c of the bottom portion 34a of the second container portion 34 is formed in a partial spherical shape such that the center portion projects in a direction from the opening end portion 34b toward the bottom portion 34a. A plurality of guide projection pieces 40 projecting radially outward are provided at the outer peripheral portion at a position spaced from the end surface of the opening end portion 34b of the second container portion 34 toward the bottom portion 34a. In this embodiment, two are provided. The dimension of the guide protrusion piece 40 in the axial direction can be arbitrarily set, and may be, for example, 2.5 millimeters.
図７は、第３容器部３５を示す斜視図である。図８は、第３容器部３５付近を拡大して示す正面図である。図９（１）は、図８の切断面線Ｓ９１−Ｓ９１から見た断面図であり、図９（２）は、図４の切断面線Ｓ９２−Ｓ９２から見た断面図である。図４も併せて参照する。第３容器部３５は、大略的に円筒状に形成される。第３容器部３５は、詳細に述べると、その外周部の軸線方向中間部には、半径方向内方に陥没する凹部である第１凹部４１および第２凹部４２が設けられるとともに、第１凹部４１に形成され、現像剤を排出するための排出孔４３が設けられる。第３容器部３５の軸線方向の長さ寸法Ａ３５は、たとえば８０ミリメートルであってもよい。第１凹部４１および第２凹部４２を除く第３容器部３５の内径Ｄ３５は、残余の部分である第１容器部３３および第２容器部３４の内径Ｄ３３，Ｄ３４よりも大きく形成される。第１凹部４１および第２凹部４２を除く第３容器部３５の内径Ｄ３５は、任意に設定可能であり、たとえば１１０ミリメートルであってもよい。
FIG. 7 is a perspective view showing the third container portion 35. FIG. 8 is an enlarged front view showing the vicinity of the third container portion 35. 9 (1) is a cross-sectional view taken along section line S91-S91 in FIG. 8, and FIG. 9 (2) is a cross-sectional view taken along section line S92-S92 in FIG. Reference is also made to FIG. The third container portion 35 is generally formed in a cylindrical shape. More specifically, the third container part 35 is provided with a first concave part 41 and a second concave part 42 which are concave parts recessed inward in the radial direction in the axially intermediate part of the outer peripheral part, and the first concave part. A discharge hole 43 is formed in 41 for discharging the developer. The length dimension A35 in the axial direction of the third container portion 35 may be, for example, 80 millimeters. The inner diameter D35 of the third container portion 35 excluding the first concave portion 41 and the second concave portion 42 is formed larger than the inner diameters D33 and D34 of the first container portion 33 and the second container portion 34 which are the remaining portions. An inner diameter D35 of the third container portion 35 excluding the first concave portion 41 and the second concave portion 42 can be arbitrarily set, and may be, for example, 110 millimeters.
第１凹部４１は、回転方向Ｒに延びて形成されるとともに、回転方向Ｒの寸法Ａ４１に比べて軸線方向の寸法Ｗ４１が小さく形成され、回転方向Ｒ下流側の端部に回転方向Ｒと交差する端壁部４１ａを有する。排出孔４３は、第１凹部４１の回転方向下流側の端壁部４１ａの一部に形成される。第２凹部４２は、回転方向Ｒに延びて形成されるとともに、回転方向Ｒの寸法Ａ４２に比べて軸線方向の寸法Ｗ４２が小さく形成され、第１凹部４１から第３容器部３５の周方向に間隔をあけて設けられる。第１凹部４１の回転方向Ｒの寸法Ａ４１は、第１凹部４１および第２凹部４２を除く第３容器部３５の外周長の４分の１以上、２分の１未満であることが望ましい。第１凹部４１の回転方向Ｒの寸法Ａ４１は、たとえば１２０ミリメートルであってもよく、軸線方向の寸法Ｗ４１は、たとえば３０ミリメートルであってもよい。また第２凹部４３の回転方向Ｒの寸法Ａ４２は、任意に設定可能であり、たとえば３０ミリメートルであってもよく、軸線方向の寸法Ｗ４２は、任意に設定可能であり、たとえば１２０ミリメートルであってもよい。
The first recess 41 is formed to extend in the rotation direction R, has a smaller dimension W41 in the axial direction than the dimension A41 in the rotation direction R, and intersects the rotation direction R at the downstream end of the rotation direction R. End wall 41a. The discharge hole 43 is formed in a part of the end wall portion 41 a on the downstream side in the rotation direction of the first recess 41. The second recess 42 is formed to extend in the rotation direction R, and has a smaller dimension W42 in the axial direction than the dimension A42 in the rotation direction R. The second recess 42 extends from the first recess 41 to the circumferential direction of the third container portion 35. Provided at intervals. The dimension A41 in the rotation direction R of the first recess 41 is preferably not less than one quarter and less than one half of the outer peripheral length of the third container portion 35 excluding the first recess 41 and the second recess 42. The dimension A41 in the rotation direction R of the first recess 41 may be, for example, 120 millimeters, and the dimension W41 in the axial direction may be, for example, 30 millimeters. The dimension A42 in the rotation direction R of the second recess 43 can be arbitrarily set, for example, 30 mm. The dimension W42 in the axial direction can be arbitrarily set, for example, 120 mm. Also good.
第１凹部４１は、詳細に述べると、底壁部４１ｂ、第１側壁部４１ｃおよび第２側壁部４１ｄをさらに有する。第１凹部４１の底壁部４１ｂは、回転方向Ｒに延び、その回転方向Ｒ下流側端部が端壁部４１ａの半径方向内方部分に連通し、回転方向Ｒ上流側端部が、第１凹部４１と第２凹部４２との間であって第１凹部４１および第２凹部４２を除く第３容器部３５の外周部に滑らかに連通する。第１凹部４１の底壁部４１ｂの回転方向Ｒ下流側端部と回転方向Ｒ上流側端部との間の回転方向Ｒ中央部は、第１凹部４１および第２凹部４２を除く第３容器部３５よりも半径方向内方に配置され、大略的に第３容器部３５の軸線Ｌ３５を軸線とする部分円筒形状に形成される。第１凹部４１の底壁部４１ｂの回転方向Ｒ中央部の外周部の曲率半径は、任意に設定可能であり、たとえば４９ミリメートルであってもよい。
More specifically, the first recess 41 further includes a bottom wall portion 41b, a first side wall portion 41c, and a second side wall portion 41d. The bottom wall portion 41b of the first recess 41 extends in the rotational direction R, the downstream end portion in the rotational direction R communicates with the radially inner portion of the end wall portion 41a, and the upstream end portion in the rotational direction R is the first end portion. Between the first concave portion 41 and the second concave portion 42, it smoothly communicates with the outer peripheral portion of the third container portion 35 excluding the first concave portion 41 and the second concave portion 42. The central portion of the rotation direction R between the rotation direction R downstream end and the rotation direction R upstream end of the bottom wall portion 41b of the first recess 41 is the third container excluding the first recess 41 and the second recess 42. It is arranged radially inward from the portion 35 and is formed in a partially cylindrical shape having the axis L35 of the third container portion 35 as an axis. The radius of curvature of the outer peripheral portion of the central portion in the rotation direction R of the bottom wall portion 41b of the first recess 41 can be arbitrarily set, and may be, for example, 49 millimeters.
第１凹部４１の第１側壁部４１ｃは、第１凹部４１の軸線方向一端部側に配置され、回転方向Ｒに延び、その回転方向Ｒ下流側端部が端壁部４１ａの軸線方向一端部に連通し、その半径方向内方部分が底壁部４１ｂの軸線方向一端部に連通し、その半径方向外方部分が第１凹部４１および第２凹部４２を除く第３容器部３５の軸線方向一端部の外周部に連通する。第１凹部４１の第２側壁部４１ｄは、第１凹部４１の軸線方向他端部側に配置され、回転方向Ｒに延び、その回転方向Ｒ下流側端部が端壁部４１ａの軸線方向他端部に連通し、その半径方向内方部分が底壁部４１ｂの軸線方向他端部に連通し、その半径方向外方部分が第１凹部４１および第２凹部４２を除く第３容器部３５の軸線方向他端部の外周部に連通する。第１凹部の第１側壁部４１ｃおよび第２側壁部４１ｄは、底壁部４１ｂから半径方向外方に立設するようにして設けられ、底壁部４１ｂと第１側壁部４１ｃとは略垂直であり、また底壁部４１ｂと第２側壁部４１ｄとは略垂直である。
The first side wall 41c of the first recess 41 is arranged on one end side in the axial direction of the first recess 41, extends in the rotation direction R, and its downstream end in the rotation direction R is one end in the axial direction of the end wall 41a. The radially inner portion communicates with one axial end portion of the bottom wall portion 41b, and the radially outer portion communicates with the axial direction of the third container portion 35 excluding the first concave portion 41 and the second concave portion 42. It communicates with the outer periphery of one end. The second side wall 41d of the first recess 41 is disposed on the other end side in the axial direction of the first recess 41, extends in the rotation direction R, and the downstream end of the rotation direction R is in the axial direction of the end wall 41a and the like. The third container portion 35 is communicated with the end portion, the radially inner portion thereof communicates with the other axial end portion of the bottom wall portion 41 b, and the radially outer portion thereof excluding the first concave portion 41 and the second concave portion 42. It communicates with the outer peripheral portion of the other axial end portion. The first sidewall portion 41c and the second sidewall portion 41d of the first recess are provided so as to stand radially outward from the bottom wall portion 41b, and the bottom wall portion 41b and the first sidewall portion 41c are substantially vertical. The bottom wall portion 41b and the second side wall portion 41d are substantially vertical.
排出孔４３は、第１凹部４１の端壁部４１ａの軸線方向中間部であって、半径方向外方寄りに、軸線方向を長手方向とする長方形状に開口して形成される。したがって排出孔４３は第１凹部４１の端壁部４１ａにおいて、第１凹部４１の底壁部４１ｂの回転方向Ｒ下流側端部よりも半径方向外方寄り、かつ第１側壁部４１ｃの回転方向Ｒ下流側端部よりも軸線方向他端部寄り、かつ第２側壁部４１ｄの回転方向Ｒ下流側端部よりも軸線方向一端部寄りで開口している。さらに詳細に述べると、排出孔４３の半径方向外方側の面は、第１凹部４１の回転方向Ｒ下流側の、第１凹部４１および第２凹部４２を除く第３容器部３５の内周面に滑らかに連通している。
The discharge hole 43 is an intermediate portion in the axial direction of the end wall portion 41a of the first concave portion 41, and is formed to open in a rectangular shape with the axial direction as a longitudinal direction, closer to the outer side in the radial direction. Accordingly, the discharge hole 43 is closer to the outer side in the radial direction than the downstream end portion in the rotational direction R of the bottom wall portion 41b of the first concave portion 41 in the end wall portion 41a of the first concave portion 41, and the rotational direction of the first side wall portion 41c. The opening is closer to the other end in the axial direction than the end on the R downstream side, and closer to one end in the axial direction than the end on the downstream side in the rotation direction R of the second side wall 41d. More specifically, the radially outer surface of the discharge hole 43 is the inner periphery of the third container portion 35 excluding the first recess 41 and the second recess 42 on the downstream side in the rotation direction R of the first recess 41. Smooth communication with the surface.
第２凹部４２は、詳細に述べると、底壁部４２ｂ、第１側壁部４２ｃおよび第２側壁部４２ｄを有する。第２凹部４２の底壁部４２ｂは、回転方向Ｒに延び、その回転方向Ｒ上流側端部および回転方向Ｒ下流側端部が、第１凹部４１と第２凹部４２との間であって第１凹部４１および第２凹部４２を除く第３容器部３５の外周部に滑らかに連通する。第２凹部４２の底壁部４２ｂの回転方向Ｒ下流側端部と回転方向Ｒ上流側端部との間の回転方向Ｒ中央部は、第１凹部４１および第２凹部４２を除く第３容器部３５よりも半径方向内方に配置され、大略的に第３容器部３５の軸線Ｌ３５を軸線とする部分円筒形状に形成される。第２凹部４２の底壁部４２ｂの回転方向Ｒ中央部の外周部の曲率半径は、任意に設定可能であり、たとえば４９ミリメートルであってもよい。
More specifically, the second recess 42 has a bottom wall portion 42b, a first side wall portion 42c, and a second side wall portion 42d. The bottom wall portion 42 b of the second recess 42 extends in the rotation direction R, and the rotation direction R upstream end and the rotation direction R downstream end are between the first recess 41 and the second recess 42. The first recess 41 and the second recess 42 are smoothly communicated with the outer periphery of the third container portion 35 except for the first recess 41 and the second recess 42. The center portion in the rotational direction R between the downstream end portion in the rotational direction R and the upstream end portion in the rotational direction R of the bottom wall portion 42b of the second concave portion 42 is the third container excluding the first concave portion 41 and the second concave portion 42. It is arranged radially inward from the portion 35 and is formed in a partially cylindrical shape having the axis L35 of the third container portion 35 as an axis. The radius of curvature of the outer peripheral portion of the central portion in the rotational direction R of the bottom wall portion 42b of the second recess 42 can be arbitrarily set, and may be, for example, 49 millimeters.
第２凹部４２の第１側壁部４２ｃは、第２凹部４２の軸線方向一端部側に配置され、回転方向Ｒに延び、その半径方向内方部分が底壁部４２ｂの軸線方向一端部に連通し、その半径方向外方部分が第１凹部４１および第２凹部４２を除く第３容器部３５の軸線方向一端部の外周部に連通する。第２凹部４２の第２側壁部４２ｄは、第２凹部４２の軸線方向他端部側に配置され、その半径方向内方部分が底壁部４２ｂの軸線方向他端部に連通し、その半径方向外方部分が第１凹部４１および第２凹部４２を除く第３容器部３５の軸線方向他端部の外周部に連通する。第２凹部の第１側壁部４２ｃおよび第２側壁部４２ｄは、底壁部４２ｂから半径方向外方に立設するようにして設けられ、底壁部４２ｂと第１側壁部４２ｃとは略垂直であり、また底壁部４２ｂと第２側壁部４２ｄとは略垂直である。
The first side wall portion 42c of the second recess 42 is disposed on one end side in the axial direction of the second recess 42, extends in the rotation direction R, and its radially inner portion communicates with one end in the axial direction of the bottom wall portion 42b. The radially outer portion communicates with the outer peripheral portion of the one axial end portion of the third container portion 35 excluding the first concave portion 41 and the second concave portion 42. The second side wall portion 42d of the second recess 42 is disposed on the other axial end side of the second recess 42, and its radially inner portion communicates with the other axial end of the bottom wall portion 42b. The outer portion in the direction communicates with the outer peripheral portion of the other end portion in the axial direction of the third container portion 35 excluding the first concave portion 41 and the second concave portion 42. The first sidewall portion 42c and the second sidewall portion 42d of the second recess are provided so as to stand radially outward from the bottom wall portion 42b, and the bottom wall portion 42b and the first sidewall portion 42c are substantially vertical. Further, the bottom wall portion 42b and the second side wall portion 42d are substantially vertical.
第３容器部３５の第１凹部４１および第２凹部４２を除く軸線方向一端部および軸線方向他端部の外周部には、図８に示すように、半径方向外方に突出する複数の排出案内片４４が、周方向に互いに間隔をあけて、周方向に等間隔に配置され設けられる。第３容器部３５の軸線方向一端部に設けられる排出案内片４４は、詳細に述べると、軸線方向他端部から軸線方向一端部に向かうにつれて回転方向Ｒに傾斜している。また第３容器部３５の軸線方向他端部に設けられる排出案内片４４は、詳細に述べると、軸線方向一端部から軸線方向他端部に向かうにつれて回転方向Ｒに傾斜している。第３容器部３５の第１凹部４１および第２凹部４２を除く外周部からの、排出案内片４４の半径方向外方への突出量は、たとえば１ミリメートルであってもよい。また前記排出案内片４４の長手方向寸法は、２４ミリメートルであってもよく、排出案内片４４の長手方向と第３容器部３６の幅方向との成す角度ψは、たとえば３０度であってもよい。
As shown in FIG. 8, a plurality of discharges projecting outward in the radial direction are provided on the outer peripheral portions of the one axial end portion and the other axial end portion excluding the first concave portion 41 and the second concave portion 42 of the third container portion 35. The guide pieces 44 are provided at equal intervals in the circumferential direction with a space therebetween in the circumferential direction. More specifically, the discharge guide piece 44 provided at one end in the axial direction of the third container portion 35 is inclined in the rotation direction R from the other end in the axial direction toward the one end in the axial direction. Further, in detail, the discharge guide piece 44 provided at the other axial end of the third container portion 35 is inclined in the rotation direction R from the one axial end to the other axial end. The protruding amount of the discharge guide piece 44 in the radial direction from the outer peripheral portion excluding the first concave portion 41 and the second concave portion 42 of the third container portion 35 may be, for example, 1 millimeter. The longitudinal dimension of the discharge guide piece 44 may be 24 millimeters, and the angle ψ formed by the longitudinal direction of the discharge guide piece 44 and the width direction of the third container portion 36 may be 30 degrees, for example. Good.
容器本体３１は、第３容器部３５の軸線方向一端部と第１容器部３３の開口端部３３ｂとが連結され、第３容器部３５の軸線方向他端部と第２容器部３４の開口端部３４ｂとが連結されるようにして一体成型される。このような容器本体３１は、たとえばポリエチレンなどの合成樹脂をブロー成型することによって製造されるようにしてもよい。これによって容器本体３１を容易に製造することができるとともに、現像剤収納容器３０の構成部品を少なくすることができる。
The container main body 31 is connected to one end in the axial direction of the third container portion 35 and the opening end 33 b of the first container portion 33, and the other end in the axial direction of the third container portion 35 and the opening of the second container portion 34. It is integrally formed so that the end 34b is connected. Such a container main body 31 may be manufactured by blow molding a synthetic resin such as polyethylene. As a result, the container body 31 can be easily manufactured, and the number of components of the developer storage container 30 can be reduced.
第１容器部３３の底部３３ａは、容器本体３１の軸線方向一端部３３ａとなり、第２容器部３４の底部３４ａは、容器本体３１の軸線方向他端部３４ａとなる。このように第１容器部３３、第２容器部３４および第３容器部３５の各軸線Ｌ３３，Ｌ３４，Ｌ３５が同軸になるようにして連結されて、容器本体３１が形成される。またこの状態では、第３容器部３５は容器本体３１の軸線方向両端部３３ａ，３４ａを除く軸線方向中間部に配置される。したがって第３容器部３５の第１容器凹部４１、第２容器凹部４２および排出孔４３は、容器本体３１の軸線方向両端部３３ａ，３４ａを除く軸線方向中間部に配置される。容器本体３１の軸線Ｌ３１は、第１容器部３３の軸線Ｌ３３、第２容器部３４の軸線Ｌ３４および第３容器部３５の軸線Ｌ３５から成る。
The bottom portion 33 a of the first container portion 33 serves as one axial end portion 33 a of the container body 31, and the bottom portion 34 a of the second container portion 34 serves as the other axial end portion 34 a of the container body 31. Thus, the container main body 31 is formed by connecting the axes L33, L34, and L35 of the first container portion 33, the second container portion 34, and the third container portion 35 so as to be coaxial. Further, in this state, the third container part 35 is disposed in the axially intermediate part excluding the axially opposite ends 33a and 34a of the container body 31. Therefore, the first container recess 41, the second container recess 42 and the discharge hole 43 of the third container portion 35 are disposed in the axial intermediate portion excluding the axial end portions 33 a and 34 a of the container body 31. An axis L31 of the container main body 31 includes an axis L33 of the first container part 33, an axis L34 of the second container part 34, and an axis L35 of the third container part 35.
図１０は、支持部材３２を示す正面図である。図１１は、支持部材３２を示す右側面図である。支持部材３２は、大略的に円筒状に形成され、前述のように構成される容器本体３１の少なくとも第３容器部３５を含む部分を、半径方向外方から全周にわたって支持する内周部４８を有する。内周部４８は、軸線Ｌ３２を中心とする円筒内周面を有する。支持部材３２は、軸線Ｌ３２に平行な仮想平面上に、少なくとも３点以上の当接部４９ａを有する支持台４９を含む。支持台４９の当接部４９ａは、たとえば軸線Ｌ３２に平行な方向を長手方向とする２つの長方形状の平面に形成されてもよい。この支持台４９の当接部４９ａを水平面に当接させることによって、支持部材３２の内周部４８の軸線Ｌ４８を、前記水平面に平行にして配置することができる。支持部材３２の軸線方向の長さ寸法Ａ３２は、第３容器部３５の軸線方向の長さ寸法Ａ３５よりも大きく設定される。支持部材３２の軸線方向の長さ寸法Ａ３２は、任意に設定可能であり、たとえば１００ミリメートルであってもよい。
FIG. 10 is a front view showing the support member 32. FIG. 11 is a right side view showing the support member 32. The support member 32 is formed in a substantially cylindrical shape, and an inner peripheral portion 48 that supports at least a portion including at least the third container portion 35 of the container main body 31 configured as described above from the outer side in the radial direction. Have The inner peripheral portion 48 has a cylindrical inner peripheral surface centered on the axis L32. The support member 32 includes a support base 49 having at least three contact portions 49a on a virtual plane parallel to the axis L32. The contact portion 49a of the support base 49 may be formed on, for example, two rectangular planes whose longitudinal direction is a direction parallel to the axis L32. By bringing the contact portion 49a of the support base 49 into contact with the horizontal plane, the axis L48 of the inner peripheral portion 48 of the support member 32 can be arranged in parallel to the horizontal plane. The length dimension A32 of the support member 32 in the axial direction is set larger than the length dimension A35 of the third container portion 35 in the axial direction. The length A32 in the axial direction of the support member 32 can be arbitrarily set, and may be, for example, 100 millimeters.
支持台４９を水平面状に設置した状態で、支持部材３２には、その上部に、一水平方向一方向である第１水平方向一方向Ｆ１に突出する排出部５０が形成される。排出部５０における支持部材３２の軸線方向中間部には、前記第１水平方向一方向Ｆ１に沿って貫通し、支持部材の軸線Ｌ３２に平行な方向に延びる長円状に開口する導通孔５１が形成される。導通孔５１の長手方向の内径は、容器本体３１の第１凹部４１の軸線方向の寸法Ｗ４１および第２凹部４２の軸線方向の寸法Ｗ４２以上に設定される。
In a state where the support base 49 is installed in a horizontal plane, the support member 32 is formed with a discharge portion 50 projecting in the first horizontal direction F1 which is one horizontal direction. A conduction hole 51 that penetrates along the first horizontal direction one direction F1 and opens in an elliptical shape extending in a direction parallel to the axis L32 of the support member is formed in the intermediate portion of the support member 32 in the discharge portion 50 in the axial direction. It is formed. The inner diameter in the longitudinal direction of the conduction hole 51 is set to be equal to or larger than the axial dimension W41 of the first recess 41 and the axial dimension W42 of the second recess 42 of the container body 31.
支持部材３２の排出部５０には、導通孔５１の第１水平方向一方向Ｆ１下流側の開口を開状態および閉状態に切換えるシャッタ部６５が設けられる。シャッタ部６５は、シャッタ６５ａおよびシャッタ案内部６５ｂを含む。シャッタ案内部６５ｂは、前記第１水平方向に垂直な水平方向である第２水平方向に延び、第２水平方向一方向Ｂ１上流側端部には、導通孔５１が開口している。シャッタ６５ａは、シャッタ案内部６５ｂに第２水平方向一方向Ｂ１および前記第２水平方向一方向Ｂ１とは逆向きの第２水平方向他方向Ｂ２にスライド変位自在にして支持される。
The discharge portion 50 of the support member 32 is provided with a shutter portion 65 that switches the opening of the conduction hole 51 downstream in the first horizontal direction F1 between the open state and the closed state. The shutter unit 65 includes a shutter 65a and a shutter guide unit 65b. The shutter guide portion 65b extends in a second horizontal direction, which is a horizontal direction perpendicular to the first horizontal direction, and a conduction hole 51 is opened at the upstream end portion in the second horizontal direction B1. The shutter 65a is supported by the shutter guide portion 65b so as to be slidably displaceable in the second horizontal direction B1 and the second horizontal direction B2 opposite to the second horizontal direction B1.
シャッタ６５ａは、シャッタ案内部６５ｂに沿ってスライド変位することで、図１０の２点鎖線で示される、導通孔５１の第１水平方向一方向Ｆ１下流側の開口を閉状態にする閉位置Ｐ１、および導通孔５１の第１水平方向一方向Ｆ１下流側の開口を開状態にする開位置Ｐ２に配置可能である。またシャッタ６５ａは、閉位置Ｐ１よりも第２水平方向他方向Ｂ２下流側にスライド変位することを規制されるとともに、シャッタ案内部６５ｂの第２水平方向一方向Ｂ１下流側端部から第２水平方向一方向Ｂ１にスライド変位することを規制される。すなわち開位置Ｐ２は、閉位置Ｐ１よりも第２水平方向一方向Ｂ１下流側かつシャッタ案内部６５ｂの第２水平方向一方向Ｂ１下流側端部よりも第２水平方向一方向Ｂ１上流側である。このようにシャッタ６５ａは、閉位置Ｐ１に配置される状態で第２水平方向一方向Ｂ１にスライド変位することで開位置Ｐ２に配置され、開位置Ｐ２に配置される状態で第２水平方向他方向Ｂ２にスライド変位することで閉位置Ｐ１に配置される。
The shutter 65a slides and displaces along the shutter guide portion 65b, thereby closing the opening P1 downstream of the conduction hole 51 in the first horizontal direction F1 indicated by a two-dot chain line in FIG. , And the opening in the first horizontal direction one direction F1 downstream of the conduction hole 51 can be disposed at the open position P2. Further, the shutter 65a is restricted from slidingly displaces downstream in the second horizontal direction other direction B2 than the closed position P1, and the second horizontal direction from the downstream end of the shutter guide portion 65b in the second horizontal direction B1. Slide displacement in one direction B1 is restricted. That is, the open position P2 is downstream in the second horizontal direction B1 downstream of the closed position P1 and upstream of the second horizontal direction B1 downstream end of the shutter guide portion 65b in the second horizontal direction B1. . As described above, the shutter 65a is disposed at the open position P2 by sliding and displacing in the second horizontal direction B1 in the state where the shutter 65a is disposed at the closed position P1, and the second horizontal direction and the like while being disposed at the open position P2. It is arranged at the closed position P1 by sliding displacement in the direction B2.
また支持部材３２には、導出手段である導出部材３８および封止手段である封止シート６６が設けられる。導出部材３８は、たとえばポリエチレンテレフタレート（略称：ＰＥＴ）などの高分子樹脂から成り、可撓性および弾発性を有するシート状に形成され、基端部で、換言すれば支持部材３２の内周部、詳細には、支持部材３２の導通孔５１の第１水平方向一方向Ｆ１上流側端部に臨む部分に設けられる。封止シート６６は、たとえばポリエチレンなどから成る柔軟性を有するシート状に形成され、基端部で支持部材３２の導通孔５１の第１水平方向一方向Ｆ１上流側端部に臨む部分に設けられる。導出部材３８の基端部は、封止シート６６の基端部の上面部に積層される。導出部材３８および封止シート６６のさらに詳細な説明は後述する。
The support member 32 is provided with a lead-out member 38 that is a lead-out means and a sealing sheet 66 that is a sealing means. The lead-out member 38 is made of, for example, a polymer resin such as polyethylene terephthalate (abbreviation: PET), and is formed in a sheet shape having flexibility and elasticity. In other words, at the base end, in other words, the inner periphery of the support member 32 Part, specifically, provided in the portion of the conduction hole 51 of the support member 32 that faces the upstream end of the first horizontal direction F1. The sealing sheet 66 is formed in a flexible sheet shape made of, for example, polyethylene, and is provided at a portion facing the upstream end portion in the first horizontal direction F1 of the conduction hole 51 of the support member 32 at the base end portion. . The base end portion of the lead-out member 38 is stacked on the upper surface portion of the base end portion of the sealing sheet 66. Further details of the lead member 38 and the sealing sheet 66 will be described later.
また支持部材３２には、半径方向外方に突出する２個の連結突起部５２が形成される。一方の連結突起部５２は、支持台４９を水平面状に設置した状態で、排出部５０よりも上方に配置され、他方の連結突起部５２は、軸線Ｌ３２に関して、前記一方の連結突起部５２とは対称の位置に配置される。また支持部材３２には、支持台４９を水平面状に設置した状態で、排出部５０よりも下方に配置され、第１水平方向一方向Ｆ１に突出して、軸線Ｌ３２に平行に延びる第１案内片５３が形成される。さらに支持部材３２には、支持台４９を水平面状に設置した状態で、排出部５０よりも上方に配置され、第１水平方向一方向Ｆ１とは逆の方向である第１水平方向他方向Ｆ２に突出して、軸線Ｌ３２に平行に延びる第２案内片５４が形成される。
The support member 32 is formed with two connecting projections 52 protruding outward in the radial direction. One connection projection 52 is disposed above the discharge portion 50 in a state where the support base 49 is installed in a horizontal plane, and the other connection projection 52 is connected to the one connection projection 52 with respect to the axis L32. Are arranged at symmetrical positions. The support member 32 is arranged below the discharge portion 50 with the support base 49 installed in a horizontal plane, protrudes in the first horizontal direction F1, and extends in parallel with the axis L32. 53 is formed. Further, the support member 32 is disposed above the discharge unit 50 in a state where the support base 49 is installed in a horizontal plane, and the first horizontal other direction F2 is opposite to the first horizontal direction F1. The second guide piece 54 is formed so as to protrude in parallel with the axis L32.
図１２は、支持部材３２を示す分解右側面図である。支持部材３２は、水平面に設置している状態で、軸線Ｌ３２を通り、第１水平方向一方向Ｆ１に向うにつれて上方に傾斜する仮想平面で２分割可能であり、詳細には、前記仮想平面よりも下方の第１支持部５５と、前記仮想平面よりも上方の第２支持部５６とに分割可能である。第１支持部５５は、支持部材３２における、第１案内片５３、排出部５０、各連結突起部５２の一方の部分５２ａ、支持台４９および内周部４８の第１案内片５３側の部分４８ａを含む。第２支持部５６は、支持部材３２における、第２案内片５４、各連結突起部５２の他方の部分５２ｂおよび内周部４８の支持台４９側の部分４８ａを含む。
FIG. 12 is an exploded right side view showing the support member 32. The support member 32 can be divided into two on a virtual plane that passes through the axis L32 and inclines upward as it goes in the first horizontal direction F1 in a state where the support member 32 is installed on the horizontal plane. Can be divided into a first support portion 55 below and a second support portion 56 above the virtual plane. The first support part 55 is a part of the support member 32 on the first guide piece 53 side of the first guide piece 53, the discharge part 50, one part 52 a of each connecting projection part 52, the support base 49 and the inner peripheral part 48. 48a is included. The second support portion 56 includes a second guide piece 54, the other portion 52 b of each connection projection 52, and a portion 48 a on the support base 49 side of the inner peripheral portion 48 in the support member 32.
第１支持部５５と第２支持部５６とは、ねじ部材５７によって着脱可能に連結される。詳細には、第１支持部５５の各連結突起部５２の一方の部分５２ａと、第２支持部５６の各連結突起部５２の他方の部分５２ｂとがねじ部材５７によって連結される。これによって容器本体３１を支持させるときに、支持部材３２を予め分割しておき、分割された支持部材３２を、容器本体３１の第１および第２凹部４１，４２および排出孔４３を含む部分を、半径方向外方から支持することで、容器本体３１を全周にわたって支持することができ、このような組立作業を容易に行うことができる。
The first support part 55 and the second support part 56 are detachably connected by a screw member 57. Specifically, one part 52 a of each connection protrusion 52 of the first support 55 and the other part 52 b of each connection protrusion 52 of the second support 56 are connected by the screw member 57. Thus, when the container body 31 is supported, the support member 32 is divided in advance, and the divided support member 32 is divided into portions including the first and second recesses 41 and 42 and the discharge hole 43 of the container body 31. By supporting from the outside in the radial direction, the container body 31 can be supported over the entire circumference, and such assembling work can be easily performed.
図１３は、図１１の切断面線Ｓ１３−Ｓ１３から見た断面図である。図１１も併せて参照する。支持部材３２の内周部４８の軸線方向一端部には、半径方向内方に突出して周方向全周にわたって延びる第１支持凸部５８が設けられる。支持部材３２の内周部４８の軸線方向他端部には、半径方向内方に突出して周方向全周にわたって延びる第２支持凸部５９が設けられる。また支持部材３２の内周部４８の軸線方向他端部には、前記第２支持凸部５９よりも軸線方向他端部側に第２支持凸部５９とは間隔をあけて、半径方向内方に突出して周方向全周にわたって延びる第３支持凸部６０が設けられる。第２支持凸部５９と第３支持凸部６０との軸線方向の間隔は、容器本体３１の第２容器部３４の案内突起片４０の軸線方向の寸法よりもわずかに大きく設定され、たとえば３ミリメートルであってもよい。
13 is a cross-sectional view taken along section line S13-S13 in FIG. Reference is also made to FIG. A first support convex portion 58 that protrudes inward in the radial direction and extends over the entire circumferential direction is provided at one axial end portion of the inner peripheral portion 48 of the support member 32. At the other end in the axial direction of the inner peripheral portion 48 of the support member 32, a second support convex portion 59 that protrudes inward in the radial direction and extends over the entire circumference is provided. Further, the other end portion in the axial direction of the inner peripheral portion 48 of the support member 32 is radially inwardly spaced from the second support convex portion 59 on the other end side in the axial direction with respect to the second support convex portion 59. A third support convex portion 60 that protrudes in the direction and extends over the entire circumference is provided. The interval in the axial direction between the second support convex portion 59 and the third support convex portion 60 is set slightly larger than the axial dimension of the guide projection piece 40 of the second container portion 34 of the container main body 31, for example 3 It may be millimeters.
第１支持凸部５８および第２支持凸部５９には、周方向に間隔をあけて等間隔に、半径方向内方に突出する支持突起片６１が複数個ずつ、本実施の形態では４個ずつ形成される。前記支持突起片６１の半径方向内方側の先端部は、円筒外周面状に湾曲する支持面を有する。第１支持凸部５８および第２支持凸部５９の各支持突起片６１は、軸線Ｌ３２を中心として各案内突起片４０の先端部を通る仮想円の直径が、第１容器部３３の外周部の外径および第２容器部３４の案内突起片４０を除く外周部の外径よりもわずかに大きく設定され、たとえば１０７ミリメートルであってもよい。第３支持凸部６０の内径は、第２容器部３４の案内突起片４０を除く外周部の外径よりもわずかに大きく設定され、たとえば１０７ミリメートルであってもよい。
Each of the first support convex portion 58 and the second support convex portion 59 has a plurality of support protrusion pieces 61 protruding inward in the radial direction at equal intervals in the circumferential direction, four in the present embodiment. Formed one by one. The distal end portion on the radially inner side of the support protrusion 61 has a support surface that is curved into a cylindrical outer peripheral surface. Each support protrusion 61 of the first support protrusion 58 and the second support protrusion 59 has a diameter of an imaginary circle passing through the tip of each guide protrusion 40 around the axis L32, and the outer periphery of the first container 33. And the outer diameter of the outer peripheral portion excluding the guide projection piece 40 of the second container portion 34 are set to be slightly larger, and may be 107 millimeters, for example. The inner diameter of the third support convex portion 60 is set slightly larger than the outer diameter of the outer peripheral portion excluding the guide projection piece 40 of the second container portion 34, and may be 107 millimeters, for example.
支持部材３２の内周部４８の軸線方向一端部における第１支持凸部５８の軸線方向他端部側に隣接して、半径方向外方に陥没して周方向全周にわたって延びる第１支持凹所６７が設けられる。支持部材３２の内周部４８の軸線方向他端部における第２支持凸部５９の軸線方向一端部側に隣接して、半径方向外方に陥没して周方向全周にわたって延びる第２支持凹所６８が設けられる。また支持部材３２の内周部４８の軸線方向他端部の第２支持凸部５９と第３支持凸部６０との間に、半径方向外方に陥没して周方向全周にわたって延びる第３支持凹所６９が設けられる。第１支持凹所６７および第２支持凹所６８の軸線方向の寸法は、たとえば７ミリメートルであってもよい。第３支持凹所６９の軸線方向の寸法は、容器本体３１の第２容器部３４の案内突起片４０の軸線方向寸法よりもわずかに大きく設定され、たとえば３ミリメートルであってもよい。
A first support recess that extends in a radially outward direction and extends over the entire circumference in the radial direction, adjacent to the other axial end of the first support convex portion 58 at one end in the axial direction of the inner peripheral portion 48 of the support member 32. A location 67 is provided. A second support recess extending in the radially outward direction and extending over the entire circumference in the radial direction, adjacent to the one end side in the axial direction of the second support convex portion 59 at the other axial end of the inner peripheral portion 48 of the support member 32. A location 68 is provided. Further, a third recess extending outward in the radial direction and extending over the entire circumference in the circumferential direction between the second support convex portion 59 and the third support convex portion 60 at the other axial end of the inner peripheral portion 48 of the support member 32. A support recess 69 is provided. The axial dimension of the first support recess 67 and the second support recess 68 may be, for example, 7 millimeters. The dimension in the axial direction of the third support recess 69 is set slightly larger than the dimension in the axial direction of the guide projection piece 40 of the second container portion 34 of the container body 31 and may be, for example, 3 millimeters.
図１４（１）は、シール材４７を示す正面図であり、図１４（２）は、シール材４７の周方向に垂直な断面を示す図である。シール手段であるシール材４７は、柔軟性および弾発性を有する、たとえばシリコンゴムなどの合成樹脂から成る。シール材４７は、図１４（１）に示すように、大略的には円環状に形成される。シール材４７は、図１４（２）に示すように、基部４７ａおよび当接部４７ｂを含む。シール材４７の基部４７ａは、軸線Ｌ３５を中心とする周方向に垂直な断面形状が長方形状にして形成される。シール材４７の当接部４７ｂは、基部４７ａの軸線方向一端部であって半径方向内方部から、軸線方向他端部から軸線方向一端部に向かうにつれて半径方向外方に傾斜するように突出する。
FIG. 14 (1) is a front view showing the sealing material 47, and FIG. 14 (2) is a view showing a cross section perpendicular to the circumferential direction of the sealing material 47. The sealing material 47, which is a sealing means, is made of a synthetic resin such as silicon rubber having flexibility and elasticity. As shown in FIG. 14 (1), the sealing material 47 is generally formed in an annular shape. As shown in FIG. 14 (2), the sealing material 47 includes a base portion 47a and a contact portion 47b. The base 47a of the sealing material 47 is formed so that the cross-sectional shape perpendicular to the circumferential direction centering on the axis L35 is rectangular. The contact portion 47b of the sealing material 47 protrudes so as to incline radially outward from one end portion in the axial direction of the base portion 47a toward the one end portion in the axial direction from the radially inward portion. To do.
シール材４７の基部４７ａの内周部の直径は、容器本体３１の第１容器部３３の外周部および第２容器部３４の案内突起片４０を除く外周部の外径よりも小さく設定され、たとえば９９ミリメートルであってもよい。またシール材４７の基部４７ａおよび当接部４７ｂの外周部の直径は、回転軸線Ｌ３１を中心として容器本体３１の第３容器部３３の各排出案内片４４の外周部を通る仮想円の直径と同等または前記仮想円の直径よりも大きく設定され、たとえば１１５ミリメートルであってもよい。またシール材４７の軸線方向の寸法は、支持部材３２の第１および第２支持凹所６７，６８の軸線方向の寸法以下に設定され、たとえば６ミリメートルであってもよい。
The diameter of the inner peripheral portion of the base portion 47a of the sealing material 47 is set to be smaller than the outer diameter of the outer peripheral portion excluding the outer peripheral portion of the first container portion 33 of the container main body 31 and the guide protrusion piece 40 of the second container portion 34, For example, it may be 99 millimeters. The diameters of the outer peripheral portions of the base portion 47a and the contact portion 47b of the sealing material 47 are the diameters of virtual circles passing through the outer peripheral portions of the discharge guide pieces 44 of the third container portion 33 of the container main body 31 around the rotation axis L31. It is set equal to or larger than the diameter of the virtual circle, and may be 115 millimeters, for example. The axial dimension of the sealing material 47 is set to be equal to or smaller than the axial dimension of the first and second support recesses 67 and 68 of the support member 32, and may be, for example, 6 millimeters.
図１５は、現像剤収納容器３０を組立てる状態を示す正面図である。図１６は、図１５の切断面線Ｓ１６−Ｓ１６から見た断面図である。現像剤収納容器３０を組立てる前に、支持部材３２を第１支持部５５と第２支持部５６とに分割しておく。またこのとき２つのシール材４７のうち、一方のシール材４７を第１容器部３３の開口端部３３ｂに密着して巻回するとともに、シール材４７の基部４７ａを第３容器部３５の軸線方向一端部の端面に密着させるようにして、容器本体３１の第１容器部３３に装着する。また他方のシール材４７を第２容器部３４の開口端部３４ｂであって、案内突起片４０よりも軸線方向一端部側に密着して巻回するとともに、シール材４７の基部４７ａを第３容器部３５の軸線方向他端部の端面に密着させるようにして、容器本体３１の第２容器部３４に装着する。
FIG. 15 is a front view showing a state in which the developer container 30 is assembled. 16 is a cross-sectional view taken along section line S16-S16 in FIG. Before assembling the developer container 30, the support member 32 is divided into a first support portion 55 and a second support portion 56. At this time, one of the two sealing materials 47 is wound in close contact with the opening end portion 33 b of the first container portion 33, and the base portion 47 a of the sealing material 47 is the axis of the third container portion 35. It is attached to the first container portion 33 of the container body 31 so as to be in close contact with the end surface of one end portion in the direction. The other sealing material 47 is wound around the opening end 34b of the second container portion 34, closer to one end in the axial direction than the guide projection piece 40, and the base 47a of the sealing material 47 is thirdly wound. The container part 35 is attached to the second container part 34 of the container main body 31 so as to be in close contact with the end surface of the other end in the axial direction of the container part 35.
第１支持部５５と第２支持部５６とによって、容器本体３１の第３容器部３５を含む部分を、半径方向外方から挟持する。この状態で、第１支持部５５と第２支持部５６とをねじ部材５７とによって連結する。
The first support portion 55 and the second support portion 56 sandwich the portion including the third container portion 35 of the container body 31 from the outside in the radial direction. In this state, the first support part 55 and the second support part 56 are connected by the screw member 57.
図１７は、図３の切断面線Ｓ１７−Ｓ１７から見た断面図である。容器本体３１が支持部材３２によって支持されている状態では、容器本体３１の軸線Ｌ３１と支持部材３２の内周部４８の軸線Ｌ３２とが、完全に、またはほぼ一致しており、容器本体３１は、支持部材３２に対して、軸線Ｌ３１まわりに回転自在である。この状態で、支持部材３２の支持台４９を水平面に設置した場合、容器本体３１の第１および第２容器部３３，３４は、水平面から離間しており、水平面と回転軸線Ｌ３１とは平行となる。
17 is a cross-sectional view taken along section line S17-S17 in FIG. In a state where the container main body 31 is supported by the support member 32, the axis L31 of the container main body 31 and the axis L32 of the inner peripheral portion 48 of the support member 32 are completely or substantially coincided with each other. The support member 32 is rotatable around the axis L31. In this state, when the support base 49 of the support member 32 is installed on a horizontal plane, the first and second container portions 33 and 34 of the container body 31 are separated from the horizontal plane, and the horizontal plane and the rotation axis L31 are parallel to each other. Become.
支持部材３２において、詳細に述べると、第１支持凸部５８の各支持突起片６１が、第１容器部３３の外周部に当接し、第２支持凸部５９の各支持突起片６１が、第２容器部３４の案内突起片４０を除く外周部に当接する。このように第１容器部３３の外周部は、第１支持凸部５８の各支持突起片６１によって、周方向に等間隔をあけて大略的に４点支持されるとともに、第２支持凸部５９の各支持突起片６１によって、周方向に等間隔をあけて大略的に４点支持される。これによって第１容器部３３の外周部と第１支持凸部５８との間、および第２容器部３４の外周部と第２支持凸部５９との間における、容器本体３１の回転に抗する摩擦力を極めて小さくすることができる。
In detail, in the support member 32, each support projection piece 61 of the first support convex portion 58 abuts on the outer peripheral portion of the first container portion 33, and each support projection piece 61 of the second support convex portion 59 is It abuts on the outer peripheral portion of the second container portion 34 excluding the guide projection piece 40. As described above, the outer peripheral portion of the first container portion 33 is supported by the support protrusions 61 of the first support convex portion 58 at approximately four points at equal intervals in the circumferential direction, and the second support convex portion. The support protrusions 61 of 59 are generally supported at four points at equal intervals in the circumferential direction. This resists rotation of the container body 31 between the outer peripheral portion of the first container portion 33 and the first support convex portion 58 and between the outer peripheral portion of the second container portion 34 and the second support convex portion 59. The frictional force can be made extremely small.
第１容器部３３のシール材４７は、支持部材３２の第１支持凹所６７に嵌り込み、シール材４７の当接部４７ｂは、第１支持凸部５８の軸線方向他端面に全周にわたって弾発的に当接する。第２容器部３４のシール材４７は、支持部材３２の第２支持凹所６８に嵌り込み、シール材４７の当接部４７ｂは、第２支持凸部５９の軸線方向一端面に全周にわたって弾発的に当接する。このような２つのシール材４７によって、容器本体３１の第１および第２凹部４１，４２および排出孔４３ならびに支持部材３２の導通孔５１よりも容器本体３１の軸線方向一端側および軸線方向他端側における容器本体３１と支持部材３２との間において、周方向全周にわたってシールが達成される。
The seal material 47 of the first container portion 33 is fitted into the first support recess 67 of the support member 32, and the contact portion 47 b of the seal material 47 extends to the other end surface in the axial direction of the first support convex portion 58 over the entire circumference. Abuts resiliently. The seal material 47 of the second container portion 34 is fitted into the second support recess 68 of the support member 32, and the contact portion 47 b of the seal material 47 extends over the entire circumference on one end surface in the axial direction of the second support convex portion 59. Abuts resiliently. By such two sealing materials 47, one end side in the axial direction of the container body 31 and the other end in the axial direction than the first and second recesses 41 and 42 and the discharge hole 43 of the container body 31 and the conduction hole 51 of the support member 32. Sealing is achieved over the entire circumference in the circumferential direction between the container body 31 and the support member 32 on the side.
容器本体３１の第２容器部３４の案内突起片４０は、支持部材３２の第３支持凹所６９に、支持部材３２に対して軸線方向へのスライド変位を規制されて嵌り込む。これによって、容器本体３１は、支持部材３２に対して、軸線方向へのスライド変位が規制される。容器本体３１の第３容器部３５の各排出案内片４４の外周部は、支持部材３２の内周部４８に当接する。このようにして支持部材３２は、半径方向外方から全周にわたって、容器本体３１の少なくとも第１凹部４１を含む部分を回転軸線Ｌ３１まわりに回転自在にして支持する。
The guide projection piece 40 of the second container portion 34 of the container body 31 is fitted into the third support recess 69 of the support member 32 while being restricted from sliding in the axial direction with respect to the support member 32. As a result, the container body 31 is restricted from sliding in the axial direction with respect to the support member 32. The outer peripheral portion of each discharge guide piece 44 of the third container portion 35 of the container body 31 abuts on the inner peripheral portion 48 of the support member 32. In this way, the support member 32 supports the portion including at least the first concave portion 41 of the container body 31 so as to be rotatable around the rotation axis L31 from the radially outer side to the entire circumference.
図１８は、図２の切断面線Ｓ１８−Ｓ１８から見た断面図である。図１９は、図１８のセクションＩＸＸを拡大して示す図である。図１８および図１９（１）は、容器本体３１が支持部材３２に対して初期状態にあり、排出孔４３が封止シート６６によって塞がれるときの図である。導出部材３８は、基端部３８ａで支持部材３２の導通孔５１の第１水平方向一方向Ｆ１上流側端部に臨む部分に設けられて回転方向Ｒ上流側へ延び、遊端部３８ｂが容器本体３１の第３容器部３５の第１凹部４１の少なくとも底壁部４１ｂおよび第２凹部４２の底壁部４２ｂの外周面に弾発的に当接可能である。また導出部材３８の遊端部３８ｂは、容器本体３１の第３容器部３５の第１凹部４１の少なくとも底壁部４１ｂおよび第２凹部４２の底壁部４２ｂの外周面に対して９０度を超える角度θを成して当接する。詳細には、前記角度θは、導出部材３８の遊端部３８ｂの上方に臨む面と各凹部４１，４２の底壁部４１ｂ，４２ｂの外周面との成す角度である。
18 is a cross-sectional view taken along section line S18-S18 in FIG. FIG. 19 is an enlarged view of the section IXX in FIG. FIG. 18 and FIG. 19 (1) are views when the container main body 31 is in an initial state with respect to the support member 32 and the discharge hole 43 is blocked by the sealing sheet 66 . The lead-out member 38 is provided at a portion of the base end portion 38a facing the upstream end portion in the first horizontal direction F1 of the conduction hole 51 of the support member 32 and extends upstream in the rotation direction R, and the free end portion 38b is a container. The third container portion 35 of the main body 31 can elastically contact at least the outer peripheral surfaces of the bottom wall portion 41 b of the first recess 41 and the bottom wall portion 42 b of the second recess 42. Further, the free end portion 38 b of the lead-out member 38 is 90 degrees with respect to the outer peripheral surface of at least the bottom wall portion 41 b of the first recess 41 and the bottom wall portion 42 b of the second recess 42 of the third container portion 35 of the container body 31. Abut with an angle θ exceeding. Specifically, the angle θ is an angle formed between the surface of the lead-out member 38 that faces the free end portion 38b and the outer peripheral surfaces of the bottom wall portions 41b and 42b of the recesses 41 and 42.
封止手段である封止シート６６は、基端部６６ａで支持部材３２の導通孔５１の第１水平方向一方向Ｆ１上流側端部に臨む部分に設けられる。詳細には、封止シート６６の一端部である基端部６６ａには、厚み方向に貫通する貫通孔が設けられる。また支持部材３２の導通孔５１には、封止シート６６の挿通孔に挿通可能な円柱状の挿通片１００が設けられる。封止シート６６は、封止シート６６の挿通孔に支持部材３２の挿通片１００が挿通される状態で、挿通片１００に挿通されて締結されて、支持部材３２と協働して封止シート６６を連結するスピードナットおよびプッシュナットなどと呼ばれる挿通連結部材１０１によって支持部材３２に連結される。
The sealing sheet 66 which is a sealing means is provided at a portion facing the upstream end portion in the first horizontal direction one direction F1 of the conduction hole 51 of the support member 32 at the base end portion 66a. Specifically, a base end portion 66 a that is one end portion of the sealing sheet 66 is provided with a through-hole penetrating in the thickness direction. A cylindrical insertion piece 100 that can be inserted into the insertion hole of the sealing sheet 66 is provided in the conduction hole 51 of the support member 32. The sealing sheet 66 is inserted into the insertion piece 100 and fastened in a state where the insertion piece 100 of the support member 32 is inserted into the insertion hole of the sealing sheet 66, and cooperates with the support member 32 to seal the sealing sheet. The support member 32 is connected by an insertion connecting member 101 called a speed nut, a push nut, or the like that connects 66.
封止シート６６の他端部６６ｂは、容器本体３１が支持部材３２に対して初期状態にあるとき、第１凹部４１の少なくとも端壁部４１ａを覆うようにして、ポリエチレンフィルムを介して熱圧着するヒートシールによって離脱可能に設けられる。このようにして初期状態では、排出孔４３は封止シート６６の基端部６６ａを除く部分６６ｂによって塞がれる。これによって初期状態において、利用者がシャッタ部６５のシャッタ６５を開位置Ｐ２に誤って配置しても、導通孔５１から容器本体３１に収納される現像剤が不所望に排出されることを防止することができる。
When the container main body 31 is in an initial state with respect to the support member 32, the other end portion 66b of the sealing sheet 66 is thermocompression bonded via a polyethylene film so as to cover at least the end wall portion 41a of the first recess 41. It can be removed by heat sealing. In this way, in the initial state, the discharge hole 43 is blocked by the portion 66b excluding the base end portion 66a of the sealing sheet 66. Thus, in the initial state, even if the user mistakenly arranges the shutter 65 of the shutter portion 65 at the open position P2, the developer stored in the container body 31 is prevented from being undesirably discharged from the conduction hole 51. can do.
また支持部材３２と封止シート６６の基端部６６ａとの連結強度は、排出孔４３を塞ぐように排出孔４３の周縁部である第１凹部４１の端壁部４１ａと封止シート６６の他端部６６ｂとの接着強度よりも高い。これによって初期状態から容器本体３１が回転されると、支持部材３２と封止シート６６の基端部６６ａとの連結が解除されることなく、封止シート６６の他端部６６ｂが排出孔４３の周縁部から離脱して排出孔４３を可及的確実に開放することができる。したがって初期状態から容器本体３１が回転されたときに、支持部材３２と封止シート６６の基端部６６ａとの連結が解除されて、封止シート６６の他端部６６ｂが排出孔４３を塞いだ状態で容器本体３１が回転して、容器本体３１から現像剤が排出されなくなることを防止できる。
In addition, the connection strength between the support member 32 and the base end portion 66 a of the sealing sheet 66 is such that the end wall portion 41 a of the first recess 41 and the sealing sheet 66 are peripheral portions of the discharge hole 43 so as to close the discharge hole 43. It is higher than the adhesive strength with the other end 66b. Accordingly, when the container body 31 is rotated from the initial state, the connection between the support member 32 and the base end portion 66 a of the sealing sheet 66 is not released, and the other end portion 66 b of the sealing sheet 66 is discharged to the discharge hole 43. It is possible to open the discharge hole 43 as reliably as possible by separating from the peripheral edge. Therefore, when the container body 31 is rotated from the initial state, the connection between the support member 32 and the base end portion 66a of the sealing sheet 66 is released, and the other end portion 66b of the sealing sheet 66 closes the discharge hole 43. In this state, it is possible to prevent the developer body from being discharged from the container body 31 by rotating the container body 31.
前記初期状態から容器本体３１が回転軸線Ｌ３１まわりに回転方向Ｒに回転されることによって、封止シート６６の基端部６６ａを除く部分６６ｂが第１凹部４１の端壁部４１ａから離脱して、排出孔４３が開放される。また第１凹部４１の端壁部４１ａから離脱した封止シート６６の基端部６６ａを除く部分６６ｂは、図１９（２）に示すように、支持部材３２の導通孔５１の回転方向Ｒ下流側で、容器本体３１の第３容器部３５と支持部材３２の内周部４８との間に配置される。これによって利用者が封止シート６６を直接取除くことなく、容器本体３１を回転することで、容易に排出孔４３を開放させることができる。
When the container body 31 is rotated in the rotation direction R around the rotation axis L31 from the initial state, the portion 66b of the sealing sheet 66 excluding the base end portion 66a is detached from the end wall portion 41a of the first recess 41. The discharge hole 43 is opened. Further, a portion 66b excluding the base end portion 66a of the sealing sheet 66 detached from the end wall portion 41a of the first recess 41 is downstream in the rotation direction R of the conduction hole 51 of the support member 32 as shown in FIG. On the side, it is arranged between the third container part 35 of the container body 31 and the inner peripheral part 48 of the support member 32. Accordingly, the user can easily open the discharge hole 43 by rotating the container body 31 without directly removing the sealing sheet 66.
排出孔４３の第１凹部４１の端壁部４１ａと封止シート６６の他端部６６ｂとの接着は、ヒートシール、両面テープおよび接着剤によってなされてもよい。ヒートシールの場合は、安価で弱い接着強度での接着が可能であるので好ましい。封止シート６６は、１０μｍ以上、８０μｍ以下程度のＰＥＴなどの高分子シート、およびデュポン社製「タイベック」（商品名）に代表される化学繊維を特殊な製法で絡み合わせて不織布状シートに加工した通気性を有するシートの一部にポリエチレンなどのヒートシール用材料をコーティングしたものが好ましい。特に前述のような通気性を有するシートは、周囲の気圧が低下することによって容器本体３１が膨張して、容器本体３１が変形および破損することを防止できる。
The adhesion between the end wall portion 41a of the first recess 41 of the discharge hole 43 and the other end portion 66b of the sealing sheet 66 may be made by heat sealing, double-sided tape, and an adhesive. In the case of heat sealing, it is preferable because it can be bonded at low cost and with weak bonding strength. The sealing sheet 66 is processed into a non-woven sheet by intertwining a polymer sheet such as PET of about 10 μm or more and 80 μm or less, and chemical fibers represented by “Tyvek” (trade name) manufactured by DuPont using a special manufacturing method. It is preferable to coat a part of the air permeable sheet with a heat sealing material such as polyethylene. In particular, a sheet having air permeability as described above can prevent the container body 31 from being expanded and deformed and broken due to a decrease in ambient atmospheric pressure.
図２０（１）は、挿通連結部材１０１を示す平面図であり、図２０（２）は、挿通連結部材１０１を示す側面図である。挿通連結部材１０１は、大略的に円環状に形成される。挿通連結部材１０１は、その軸線に沿って厚み方向に貫通する貫通孔１０２が形成される。また挿通連結部材１０１には、半径方向内方に突出する突出部が１０３が複数、本実施の形態では３つ設けられ、挿通連結部材１０１の軸線から各突出部１０３までの距離は、支持部材３２の挿通片１００の外径の半分よりも小さく設定される。これによって挿通連結部材１０１を挿通片１００に挿通させると、挿通連結部材１０１の各突出部１０３が挿通片１００を半径方向内方への弾発的な押圧力が発生し、挿通連結部材１０１が挿通片１００に対して軸線方向に変位しようとしても、それに抗する方向の力が発生する。これによって封止シート６６の挿通孔に支持部材３２の挿通片１００を挿通して、挿通連結部材１０１を挿通片１００に挿通して締結することで、容易に封止シート６６を支持部材３２に連結することができる。またこのような連結による連結強度を、ヒートシールによる接着強度よりも高くできる。
20 (1) is a plan view showing the insertion connecting member 101, and FIG. 20 (2) is a side view showing the insertion connecting member 101. FIG. The insertion connecting member 101 is generally formed in an annular shape. The insertion connecting member 101 is formed with a through hole 102 that penetrates in the thickness direction along the axis. The insertion connecting member 101 is provided with a plurality of protrusions 103 protruding inward in the radial direction, three in the present embodiment, and the distance from the axis of the insertion connecting member 101 to each protrusion 103 is determined by the support member. It is set to be smaller than half of the outer diameter of the 32 insertion pieces 100. Thus, when the insertion connecting member 101 is inserted through the insertion piece 100, each protrusion 103 of the insertion connection member 101 generates a resilient pressing force radially inward of the insertion piece 100, and the insertion connection member 101 is Even if an attempt is made to displace the insertion piece 100 in the axial direction, a force in a direction against the displacement is generated. Thus, the insertion piece 100 of the support member 32 is inserted into the insertion hole of the sealing sheet 66, and the insertion connecting member 101 is inserted into the insertion piece 100 and fastened, whereby the sealing sheet 66 is easily attached to the support member 32. Can be linked. Moreover, the connection strength by such connection can be made higher than the adhesive strength by heat sealing.
支持部材３２と封止シート６６の基端部６６ａとの連結は、前述のような挿通連結部材１０１以外に、たとえばナットを挿通片１００に螺着することで行ってもよい。
The connection between the support member 32 and the base end portion 66a of the sealing sheet 66 may be performed by screwing, for example, a nut to the insertion piece 100 in addition to the insertion connection member 101 as described above.
再び図１８を参照して、支持部材３２の支持台４９を水平面に設置して、現像剤が収納されている状態では、容器本体３１の内空間は、現像剤で占められる現像剤層と、現像剤層よりも上方の気体で占められる気層との２層が形成される。容器本体３１を、第１容器部３３から第２容器部３４を見て回転軸線Ｌ３１を中心にして時計まわりに回転させる。このとき第１容器部３３の現像剤層の現像剤は、各第１突起片３６によって回転軸線Ｌ３１に沿って第１容器部３３から第３容器部３５に向かう第１搬送方向Ｃ１（図２参照）に搬送される。またこのとき第２容器部３４の現像剤層の現像剤は、各第２突起片３９によって回転軸線Ｌ３１に沿って第２容器部３４から第３容器部３５に向かう第２搬送方向Ｃ２（図２参照）に搬送される。このように容器本体３１を回転軸線Ｌ３１まわりに回転することによって、収納される現像剤を排出孔４３に向けて搬送することができる。さらに第３容器部３５において、第１搬送方向Ｃ１に向かう現像剤と、第２搬送方向Ｃ２に向かう現像剤とが互いに衝突して、これによって現像剤を攪拌することができる。
Referring to FIG. 18 again, in a state where the support base 49 of the support member 32 is installed on a horizontal plane and the developer is stored, the inner space of the container body 31 includes a developer layer occupied by the developer, Two layers are formed, an air layer occupied by a gas above the developer layer. The container main body 31 is rotated clockwise around the rotation axis L31 as seen from the first container part 33 to the second container part 34. At this time, the developer in the developer layer of the first container section 33 is conveyed in the first transport direction C1 (FIG. 2) from the first container section 33 toward the third container section 35 along the rotation axis L31 by the first protrusions 36. To be referred to). At this time, the developer in the developer layer of the second container portion 34 is moved in the second transport direction C2 (see FIG. 5) from the second container portion 34 toward the third container portion 35 along the rotation axis L31 by the second protrusions 39. 2). Thus, by rotating the container main body 31 around the rotation axis L <b> 31, the stored developer can be conveyed toward the discharge hole 43. Further, in the third container portion 35, the developer heading in the first transport direction C1 and the developer heading in the second transport direction C2 collide with each other, whereby the developer can be stirred.
現像剤が搬送されるときに現像剤には、第１および第２突起片３６，３９を含む第１および第２容器部３３，３４の内周部から第３容器部３５に向かう力が与えられる。容器本体３１に収納される現像剤の量が多いとき、第１および第２容器部３３，３４の内周部から第１および第２突起片３６，３９の半径方向内方への突出量Ａ２以内に配置される現像剤は、容器本体２１が回転することによって主に攪拌され、容器本体２１内でバランスが保たれている。
When the developer is conveyed, a force is applied to the developer from the inner peripheral portion of the first and second container portions 33 and 34 including the first and second projecting pieces 36 and 39 toward the third container portion 35. It is done. When the amount of the developer stored in the container main body 31 is large, the protrusion amount A2 from the inner peripheral portions of the first and second container portions 33 and 34 to the radially inner sides of the first and second projecting pieces 36 and 39. The developer disposed within is mainly agitated by the rotation of the container body 21, and the balance is maintained in the container body 21.
図２１および図２２は、容器本体３１が回転軸線Ｌ３１まわりの回転方向Ｒに回転しているときに、容器本体３１の第３容器部３５内の現像剤が支持部材３２の導通孔５１に導かれるまでの動作を説明するための図である。図７、図９および図１７をも併せて参照する。容器本体３１が支持部材３２によって回転軸線Ｌ３１まわりに回転自在に指示されている状態では、第３容器部３１の第１凹部４１と支持部材３２の内周部４８とに臨む第１保持空間６２ａが形成される。第１保持空間６２ａは、排出孔４３を除いて大略的には閉じた空間となっており、排出孔４３の回転方向Ｒ上流側に配置され、排出孔４３を介して容器本体３１内の空間に連通している。また第３容器部３１の第２凹部４１と支持部材３２の内周部４８とに臨む第２保持空間６２ｂが形成される。第２保持空間６２ｂは、大略的には閉じた空間となっている。
21 and 22 show that the developer in the third container portion 35 of the container body 31 is guided to the conduction hole 51 of the support member 32 when the container body 31 rotates in the rotation direction R around the rotation axis L31. It is a figure for demonstrating the operation | movement until it is written. Please refer to FIG. 7, FIG. 9, and FIG. In a state where the container body 31 is instructed to be rotatable about the rotation axis L31 by the support member 32, the first holding space 62a facing the first recess 41 of the third container portion 31 and the inner peripheral portion 48 of the support member 32 is provided. Is formed. The first holding space 62 a is generally a closed space except for the discharge hole 43, and is disposed on the upstream side in the rotation direction R of the discharge hole 43, and is a space in the container body 31 through the discharge hole 43. Communicating with Further, a second holding space 62 b is formed that faces the second recess 41 of the third container portion 31 and the inner peripheral portion 48 of the support member 32. The second holding space 62b is generally a closed space.
図２１（１）に示す、排出孔４３および第１保持空間６２ａが、容器本体３１内の現像剤層６３の上面６３ａよりも上方に配置される状態から、容器本体３１が回転方向Ｒに回転して、図２１（２）に示す、排出孔４３および第１保持空間６２ａの回転方向Ｒ下流部が、容器本体３１内の現像剤層６３の上面６３ａよりも下方に配置される状態となると、容器本体３１内の現像剤層６３の現像剤が、矢符Ｇ１に示すように、排出孔４３を介して第１保持空間６２ａの回転方向Ｒ下流部に流入する。
The container main body 31 rotates in the rotation direction R from the state where the discharge hole 43 and the first holding space 62a are disposed above the upper surface 63a of the developer layer 63 in the container main body 31 shown in FIG. Then, when the discharge hole 43 and the first holding space 62a shown in FIG. 21 (2) are disposed below the upper surface 63a of the developer layer 63 in the container main body 31, the downstream direction R of the first holding space 62a is disposed. The developer in the developer layer 63 in the container body 31 flows into the downstream portion in the rotation direction R of the first holding space 62a through the discharge hole 43 as indicated by an arrow G1.
前述したように、排出孔４３は、第１凹部４１の端壁部４１ａの軸線方向中間部であって、半径方向外方寄りに、軸線方向を長手方向とする長方形状に開口して形成される。したがって排出孔４３は第１凹部４１の端壁部４１ａにおいて、第１凹部４１の底壁部４１ｂの回転方向Ｒ下流側端部よりも半径方向外方寄り、かつ第１側壁部４１ｃの回転方向Ｒ下流側端部よりも軸線方向他端部寄り、かつ第２側壁部４１ｄの回転方向Ｒ下流側端部よりも軸線方向一端部寄りで開口している。
As described above, the discharge hole 43 is an intermediate portion in the axial direction of the end wall portion 41a of the first concave portion 41, and is formed to open in a rectangular shape with the axial direction as the longitudinal direction at the outer side in the radial direction. The Accordingly, the discharge hole 43 is closer to the outer side in the radial direction than the downstream end portion in the rotational direction R of the bottom wall portion 41b of the first concave portion 41 in the end wall portion 41a of the first concave portion 41, and the rotational direction of the first side wall portion 41c. The opening is closer to the other end in the axial direction than the end on the R downstream side, and closer to one end in the axial direction than the end on the downstream side in the rotation direction R of the second side wall 41d.
たとえば前記端壁部４１ａに全体に排出孔４３が開口する場合、現像剤は、容器本体３１が回転方向Ｒに回転することによって、容器本体３１の第１凹部４１および支持部材３２の内周部４８に沿って密にして押出されるようにして、排出孔４３から第１保持空間６２ａに排出される。このような状態で容器本体３１がさらに回転方向Ｒに回転することによって、第１保持空間６２ａに保持されている現像剤は、容器本体３１の第１凹部４１および支持部材３２の内周部４８によって押圧されて、凝集してしまう危険性がある。本実施の形態では、前述のように、排出孔４３は第１凹部４１の端壁部４１ａの一部に形成される、換言すれば、排出孔４３の開口面積が端壁部４１ａの面積よりも小さく形成されるので、現像剤は、第１保持空間６２ａにおける排出孔４３付近において、拡散するようにして第１保持空間６２ａに排出される。これによって第２保持空間６２ａに排出される現像剤を粉体状にすることができるとともに、前述のような容器本体３１の回転による現像剤の凝集を可及的に防止することができる。
For example, when the discharge hole 43 is opened in the end wall portion 41a as a whole, the developer rotates the container body 31 in the rotation direction R, whereby the first recess 41 of the container body 31 and the inner peripheral portion of the support member 32 are used. It is discharged from the discharge hole 43 to the first holding space 62 a so as to be extruded along the line 48. In this state, the container main body 31 further rotates in the rotation direction R, so that the developer held in the first holding space 62a is in the first concave portion 41 of the container main body 31 and the inner peripheral portion 48 of the support member 32. There is a risk of being pressed and aggregated. In the present embodiment, as described above, the discharge hole 43 is formed in a part of the end wall portion 41a of the first recess 41. In other words, the opening area of the discharge hole 43 is larger than the area of the end wall portion 41a. Therefore, the developer is discharged to the first holding space 62a so as to diffuse in the vicinity of the discharge hole 43 in the first holding space 62a. As a result, the developer discharged into the second holding space 62a can be made into powder, and the aggregation of the developer due to the rotation of the container body 31 as described above can be prevented as much as possible.
さらに排出孔４３の半径方向外方側の面は、第１凹部４１の回転方向Ｒ下流側の、第１凹部４１および第２凹部４２を除く第３容器部３５の内周面に滑らかに連通している。これによって容器本体３１に収納される現像剤の量が非常に少なくなっても、現像剤は、排出孔４３を介して第１保持空間６２ａの回転方向Ｒ下流部に容易に流入することができる。
Further, the radially outward surface of the discharge hole 43 smoothly communicates with the inner peripheral surface of the third container portion 35 excluding the first recess 41 and the second recess 42 on the downstream side in the rotation direction R of the first recess 41. is doing. Thus, even if the amount of the developer stored in the container body 31 is very small, the developer can easily flow into the downstream portion in the rotation direction R of the first holding space 62a through the discharge hole 43. .
図２１（２）に示す状態から、さらに容器本体３１が回転方向Ｒに回転すると、容器本体３１内の現像剤層６３の現像剤が、排出孔４３を介して第１保持空間６２ａの回転方向Ｒ下流部に流入ながら、図２２（１）に示す、排出孔４３が容器本体３１内の現像剤層６３の上面６３ａよりも上方に配置され、第１保持空間６２ａが容器本体３１内の現像剤層６３の上面６３ａよりも下方に配置される状態となる。このような図２２（１）に示す状態では、予め定める量の現像剤が、第１保持空間６２ａに保持される。このように第１保持空間６２ａに保持される現像剤の量は、たとえば６グラムであってもよい。
When the container main body 31 further rotates in the rotation direction R from the state shown in FIG. 21B, the developer in the developer layer 63 in the container main body 31 rotates in the first holding space 62a through the discharge hole 43. 22 (1), the discharge hole 43 is disposed above the upper surface 63a of the developer layer 63 in the container body 31, and the first holding space 62a is developed in the container body 31. It will be in the state arrange | positioned below the upper surface 63a of the agent layer 63. FIG. In such a state shown in FIG. 22A, a predetermined amount of developer is held in the first holding space 62a. Thus, the amount of the developer held in the first holding space 62a may be 6 grams, for example.
図２２（１）に示す状態から、さらに容器本体３１が回転方向Ｒに回転すると、図２２（２）に示す、支持部材３２の導出部材３８の遊端部３８ｂが、第１保持空間６２ａに進入して、回転方向Ｒ上流側に延びて、第１凹部４１の底壁部４１ｂの外周面に対して９０度を超える角度θを成して弾発的に当接しながら、当該外周面に対して摺動する状態となる。このとき導出部材３８よりも回転方向Ｒ上流側の第１保持空間６２ａに保持されている現像剤は、容器本体３１が回転方向Ｒに回転することによって、支持部材３２に向かって流動する。
When the container body 31 further rotates in the rotation direction R from the state shown in FIG. 22 (1), the free end portion 38b of the lead-out member 38 of the support member 32 shown in FIG. 22 (2) enters the first holding space 62a. Entering the outer circumferential surface while extending elastically in contact with the outer circumferential surface of the bottom wall portion 41b of the first recess 41 at an angle θ exceeding 90 degrees. It will be in the state which slides with respect to it. At this time, the developer held in the first holding space 62a on the upstream side in the rotation direction R from the lead-out member 38 flows toward the support member 32 as the container body 31 rotates in the rotation direction R.
導出部材３８は、このように流動してきた現像剤、換言すれば容器本体３１の排出孔４３から排出された現像剤を、矢符Ｇ２に示すように、導出部材３８の上面に沿って案内して導通孔５１に導く。導出部材３８は、現像剤を第１凹部４１の底壁部４１ｂの外周面から掻き取るようにして、当該外周面に対して摺動するので、第１保持空間６２ａに保持されていた現像剤を可及的に全て導通孔５１に導くことができる。このように導通孔５１に導かれた現像剤は、現像剤収納容器３０の外部へと導かれて排出される。このように容器本体３１が軸回転軸線Ｌ３１まわりに回転方向Ｒに１回転する毎に、前述の予め定める量の現像剤が、外部に排出される。
The lead-out member 38 guides the developer flowing in this way, in other words, the developer discharged from the discharge hole 43 of the container body 31 along the upper surface of the lead-out member 38 as indicated by an arrow G2. To the conduction hole 51. Since the lead-out member 38 scrapes the developer from the outer peripheral surface of the bottom wall portion 41b of the first recess 41 and slides with respect to the outer peripheral surface, the developer held in the first holding space 62a. Can be guided to the conduction hole 51 as much as possible. Thus, the developer guided to the conduction hole 51 is guided to the outside of the developer storage container 30 and discharged. Thus, each time the container main body 31 makes one rotation in the rotation direction R around the axis rotation axis L31, the above-mentioned predetermined amount of developer is discharged to the outside.
第３容器部３１の第１および第２凹部４１，４２を除く部分と、支持部材３２の内周部４８とは、前述したように、容器本体３１の回転軸線Ｌ３１まわりの回転を阻止する摩擦力を低減するために、周方向全周にわたって全体的に当接していない。したがって前述のように第１保持空間６２ａに保持されている現像剤が、第１保持空間６２ａから漏れ出す可能性が全くないわけではない。前述のように、第３容器部３５の第１凹部４１および第２凹部４２を除く軸線方向一端部および軸線方向他端部の外周部には、排出案内片４４が設けられている。第３容器部３５の軸線方向一端部に設けられる排出案内片４４は、軸線方向他端部から軸線方向一端部に向かうにつれて回転方向Ｒに傾斜しており、第３容器部３５の軸線方向他端部に設けられる排出案内片４４は、軸線方向一端部から軸線方向他端部に向かうにつれて回転方向Ｒに傾斜しているので、万一、第１保持空間６２ａに保持されている現像剤が、回転軸線Ｌ３２方向一方側および他方側に漏れ出た場合には、容器本体３１が回転方向Ｒに回転しているときに、各排出案内片４４によって、第３容器部３５および支持部材３２の軸線方向中間部に寄せ集めることができる。
As described above, the portion of the third container portion 31 excluding the first and second recesses 41 and 42 and the inner peripheral portion 48 of the support member 32 are frictions that prevent rotation of the container body 31 around the rotation axis L31. In order to reduce the force, it does not contact the entire circumference in the circumferential direction. Therefore, as described above, the developer held in the first holding space 62a is not completely free from leakage from the first holding space 62a. As described above, the discharge guide piece 44 is provided on the outer peripheral portion of the one axial end and the other axial end of the third container portion 35 excluding the first concave portion 41 and the second concave portion 42. The discharge guide piece 44 provided at one end in the axial direction of the third container portion 35 is inclined in the rotational direction R from the other end in the axial direction toward one end in the axial direction. Since the discharge guide piece 44 provided at the end portion is inclined in the rotation direction R from the one end portion in the axial direction toward the other end portion in the axial direction, the developer held in the first holding space 62a should be accommodated. When the container main body 31 rotates in the rotation direction R, when the container main body 31 rotates in the rotation direction R, the discharge guide pieces 44 cause the third container portion 35 and the support member 32 to leak. They can be gathered together in the middle in the axial direction.
また前述のように第２保持空間６２が形成されているので、万一、第１保持空間６２ａに保持されている現像剤が、第１保持空間６２ａの回転方向Ｒ上流部から漏れ出た場合、このように漏れ出た現像剤および各排出案内片４４によって軸線方向中間部に寄せ集められた現像剤は、第２保持空間６２に保持される。容器本体３１が回転方向Ｒに回転すると、図２２（１）に示す、支持部材３２の導出部材３８の遊端部３８ｂが、第２保持空間６２ｂに進入して、回転方向Ｒ上流側に延びて、第２凹部４２の底壁部４２ｂの外周面に対して９０度を超える角度θを成して弾発的に当接しながら、当該外周面に対して摺動する状態となる。このとき導出部材３８よりも回転方向Ｒ上流側の第２保持空間６２ｂに保持されている現像剤は、容器本体３１が回転方向Ｒに回転することによって、支持部材３２に向かって流動して、導通孔５１に導かれて、現像剤収納容器３０の外部へと導かれて排出される。このように容器本体３１が軸回転軸線Ｌ３１まわりに回転方向Ｒに１回転する毎に、万一、第１保持空間６２ａから現像剤が漏れ出てたとしても、漏れ出た現像剤は第２保持空間６２ｂによって保持されるので、前述の予め定める量の現像剤を、可及的に確実に外部に排出することができる。
In addition, since the second holding space 62 is formed as described above, the developer held in the first holding space 62a should leak from the upstream portion in the rotation direction R of the first holding space 62a. The developer leaked in this way and the developer gathered to the intermediate portion in the axial direction by the discharge guide pieces 44 are held in the second holding space 62. When the container body 31 rotates in the rotation direction R, the free end portion 38b of the lead-out member 38 of the support member 32 shown in FIG. 22 (1) enters the second holding space 62b and extends upstream in the rotation direction R. Thus, it slides with respect to the outer peripheral surface while making an elastic contact with the outer peripheral surface of the bottom wall portion 42b of the second recess 42 at an angle θ exceeding 90 degrees. At this time, the developer held in the second holding space 62b on the upstream side in the rotation direction R from the lead-out member 38 flows toward the support member 32 when the container body 31 rotates in the rotation direction R, It is led to the conduction hole 51 and led to the outside of the developer storage container 30 to be discharged. Thus, every time the container main body 31 makes one rotation in the rotation direction R around the axis rotation axis L31, even if the developer leaks from the first holding space 62a, the leaked developer is the second Since it is held by the holding space 62b, the aforementioned predetermined amount of developer can be discharged to the outside as reliably as possible.
また前述のように、支持台４９を水平面状に設置した状態で、支持部材３２には、その上部に、一水平方向一方向である第１水平方向一方向Ｆ１に突出する排出部５０が形成され、排出部５０における支持部材３２の軸線方向中間部には、前記第１水平方向一方向Ｆ１に沿って貫通し、支持部材の軸線Ｌ３２に平行な方向に延びる長円状に開口する導通孔５１が形成される。これによって容器本体３１に満杯の現像剤が収納されているときでも、現像剤層６３の上面６３ａが、導通孔５１と同じ高さ、または導通孔５１よりも下方に配置されるので、現像剤が容器本体３１から導通孔５１に不所望に流出することを確実に防止できる。
In addition, as described above, with the support base 49 installed in a horizontal plane, the support member 32 is formed with a discharge portion 50 projecting in the first horizontal direction F1 which is one horizontal direction. In the discharge portion 50, a conduction hole that penetrates along the first horizontal direction F1 and opens in an elliptical shape extending in a direction parallel to the axis L32 of the support member is provided in the intermediate portion of the support member 32 in the axial direction. 51 is formed. Accordingly, even when the full developer is stored in the container body 31, the upper surface 63a of the developer layer 63 is disposed at the same height as the conduction hole 51 or below the conduction hole 51. Can be reliably prevented from undesirably flowing out from the container body 31 into the conduction hole 51.
図２３は、現像剤収納容器３０から排出される現像剤の量と時間との関係を示すグラフである。図２３において、曲線Ｈ１は、容器本体３１の第３容器部３５の内径Ｄ３５が、第１および第２容器部３３，３４の内径Ｄ３３，Ｄ３４以下に形成されている場合の、現像剤収納容器３０から排出される現像剤の量と時間との関係を示す。また曲線Ｈ２は、容器本体３１の第３容器部３５の内径Ｄ３５が、第１および第２容器部３３，３４の内径Ｄ３３，Ｄ３４よりも大きく形成されている場合の、現像剤収納容器３０から排出される現像剤の量と時間との関係を示す。
FIG. 23 is a graph showing the relationship between the amount of developer discharged from the developer storage container 30 and time. In FIG. 23, a curved line H1 indicates a developer container when the inner diameter D35 of the third container portion 35 of the container main body 31 is formed to be equal to or smaller than the inner diameters D33 and D34 of the first and second container portions 33 and 34. The relationship between the amount of developer discharged from 30 and time is shown. The curve H2 indicates that the inner diameter D35 of the third container portion 35 of the container main body 31 is larger than the inner diameters D33 and D34 of the first and second container portions 33 and 34. The relationship between the amount of developer discharged and time is shown.
粉体状になった現像剤は、たとえば水平面に鋭利な山のように載置しても、すぐになだらかな山のようになってしまう性質がある。たとえば容器本体３１の第３容器部３５の内径Ｄ３５が、第１および第２容器部３３，３４の内径Ｄ３３，Ｄ３４以下に形成されている場合、容器本体３１の回転によって排出孔４３に向けて搬送された現像剤は、容器本体３１の回転が停止すると、排出孔４３から離反するようになる。このような場合、容器本体３１内に収納される現像剤の量が非常に少なくなったときには、容器本体３１の回転が再開した直後に、充分な量の現像剤を排出孔４３に向けて搬送することが困難となる。
Even if the developer in the form of a powder is placed like a sharp mountain on a horizontal surface, for example, it has a property that it immediately becomes a gentle mountain. For example, when the inner diameter D35 of the third container portion 35 of the container body 31 is formed below the inner diameters D33, D34 of the first and second container portions 33, 34, the container body 31 rotates toward the discharge hole 43. The conveyed developer comes away from the discharge hole 43 when the rotation of the container body 31 stops. In such a case, when the amount of the developer stored in the container main body 31 becomes very small, a sufficient amount of developer is conveyed toward the discharge hole 43 immediately after the rotation of the container main body 31 is resumed. Difficult to do.
本実施の形態では、前述した図８に示すように、容器本体３１の第３容器部３４の内径は、残余の部分である第１および第２容器部３３，３４の内径Ｄ３３，Ｄ３４よりも大きく形成されるので、容器本体３１内に収納される現像剤の量が非常に少なくなったとき、一旦、第３容器部３５に搬送された現像剤が第３容器部３５から離反することを可及的に防止することができる。これによって容器本体３１内に収納される現像剤の量が非常に少なくなったときにも、容器本体３１の回転が再開した直後に、充分な量の現像剤を排出孔４３に向けて搬送することが可及的に可能となる。さらに容器本体３１に収納される全ての現像剤を、外部に排出することが可及的に可能となる。
In the present embodiment, as shown in FIG. 8 described above, the inner diameter of the third container portion 34 of the container body 31 is larger than the inner diameters D33 and D34 of the first and second container portions 33 and 34 that are the remaining portions. Since it is formed large, when the amount of developer stored in the container main body 31 becomes very small, the developer once transported to the third container part 35 is separated from the third container part 35. It can be prevented as much as possible. As a result, even when the amount of the developer stored in the container main body 31 becomes very small, a sufficient amount of developer is conveyed toward the discharge hole 43 immediately after the rotation of the container main body 31 is resumed. It becomes possible as much as possible. Furthermore, it is possible to discharge all the developer stored in the container body 31 to the outside as much as possible.
曲線Ｈ１に示すように、容器本体３１の第３容器部３５の内径Ｄ３５が、第１および第２容器部３３，３４の内径Ｄ３３，Ｄ３４以下に形成されている場合、容器本体３１に収納されている現像剤の量が減少すると、現像剤の排出量は、それに鋭く対応して減少する。一方、曲線Ｈ２に示すように、容器本体３１の第３容器部３５の内径Ｄ３５が、第１および第２容器部３３，３４の内径Ｄ３３，Ｄ３４よりも大きく形成されている場合、曲線Ｈ１に比べて、容器本体３１に収納されている現像剤の量が減少しても、現像剤の排出量は、現像剤の量が零に近くなるまでは、ほぼ一定を保っている。したがって、本実施の形態の現像剤収納容器３０は、より長時間にわたって安定した現像剤の排出が可能になる。
As shown by the curve H1, when the inner diameter D35 of the third container portion 35 of the container body 31 is formed below the inner diameters D33, D34 of the first and second container portions 33, 34, they are stored in the container body 31. As the amount of developer being reduced decreases, the developer discharge decreases sharply. On the other hand, when the inner diameter D35 of the third container portion 35 of the container body 31 is formed larger than the inner diameters D33, D34 of the first and second container portions 33, 34 as shown by the curve H2, the curve H1 In comparison, even if the amount of the developer stored in the container main body 31 decreases, the amount of developer discharged remains substantially constant until the amount of developer approaches zero. Therefore, the developer storage container 30 of the present embodiment can discharge the developer stably for a longer time.
以上のように本実施の形態の現像剤収納容器３０によれば、容器本体３１が軸線Ｌ３１まわりに回転駆動することで、容器本体３１の内周部に設けられる送り手段によって、容器本体３１に収納される現像剤を軸線方向に送ることができる。送り手段が、第１および第２の従来技術のように、軸線まわりの螺旋方向に沿って延びるような、たとえば半径方向内方に突出する突起片または半径方向外方に陥没する溝に形成されている場合、送り手段付近の現像剤は、送り手段から軸線方向の押圧力を受けるので、突起片の近傍で、現像剤は凝集し、このように凝集した状態で画像形成装置へ供給される危険性がある。またこの場合、容器本体の軸線方向まわりのねじりの外力および曲げの外力および衝撃が加わることによって、容器本体が送り手段において容易に螺旋方向に大略的に沿って延びるような亀裂が生じて破損する危険性がある。また第３の従来技術のように、周方向および軸線方向に間隔をあけて複数の送り部が形成される場合、周方向に隣り合う送り部の間の部分が従来技術のように、同一直線上または同一螺旋軌道上に配置されると、容器本体が、半径方向内方の押圧力を受けると、同一直線上または同一螺旋軌道上に配置されるが前記部分が周方向に圧縮されて変形しやすくなる。
As described above, according to the developer storage container 30 of the present embodiment, the container main body 31 is rotationally driven around the axis L31 so that the feeding means provided on the inner peripheral portion of the container main body 31 causes the container main body 31 to move. The stored developer can be fed in the axial direction. As in the first and second prior arts, the feeding means is formed in, for example, a projecting piece projecting radially inward or a groove recessed radially outward, extending along a spiral direction around the axis. In this case, the developer in the vicinity of the feeding unit receives an axial pressing force from the feeding unit, so that the developer aggregates in the vicinity of the protruding piece, and is supplied to the image forming apparatus in this aggregated state. There is a risk. Further, in this case, the external force of the torsion around the axial direction of the container body, the external force of bending and the impact are applied, so that the container body easily breaks and breaks in the feeding means so as to extend substantially along the spiral direction. There is a risk. Further, when a plurality of feeding parts are formed at intervals in the circumferential direction and the axial direction as in the third prior art, the portion between the feeding parts adjacent in the circumferential direction is the same as in the prior art. When placed on a line or on the same spiral track, the container body is placed on the same straight line or the same spiral track when subjected to a radially inward pressing force, but the portion is compressed and deformed in the circumferential direction. It becomes easy to do.
本実施の形態の現像剤収納容器３０では、送り手段は、第１延在方向に延びる複数の第１突起片３６および第２延在方向に延びる第２突起片３９を有し、各突起片３６，３９は、周方向および軸線方向に間隔をあけて形成され、軸線方向に隣り合う２つの突起片３６，３９は、一方の突起片３６，３９の回転方向下流側端部と他方の突起片３６，３９の回転方向上流側端部とが軸線方向に隣り合うように配置されるので、周方向に隣り合う突起片３６，３９の間の部分が、同一直線上または同一螺旋軌道上に配置されることがない。これによって容器本体３１の軸線方向まわりのねじりの外力および曲げの外力および衝撃が加わっても、半径方向内方の押圧力を受けても、破損および変形することを可及的に防止することができる。また各突起片３６，３９は、周方向に間隔をあけているので、突起片３６，３９によって軸線方向に送られる現像剤は、各突起片３６，３９に間欠的に当接を繰返すので、現像剤は、突起片３６，３９において凝集することが防止できるだけでなく、揺動されるようにして軸線方向に送られることができる。これによって回転する容器本体３１内において、現像剤が確実に攪拌されるとともに揺動によって解されて、凝集することを確実に防止することができる。
In the developer storage container 30 of the present embodiment, the feeding means has a plurality of first projection pieces 36 extending in the first extending direction and second projection pieces 39 extending in the second extending direction. 36 and 39 are formed at intervals in the circumferential direction and the axial direction, and the two protruding pieces 36 and 39 adjacent in the axial direction are the downstream end in the rotational direction of one protruding piece 36 and 39 and the other protruding piece. Since the upstream ends in the rotational direction of the pieces 36 and 39 are arranged so as to be adjacent to each other in the axial direction, the portions between the protruding pieces 36 and 39 adjacent in the circumferential direction are on the same straight line or on the same spiral trajectory. Will not be placed. As a result, it is possible to prevent damage and deformation as much as possible even when a torsional external force, an external bending force and an impact are applied to the container body 31 and a radial inward pressing force is applied. it can. Further, since the protrusions 36 and 39 are spaced apart in the circumferential direction, the developer sent in the axial direction by the protrusions 36 and 39 repeats contact with the protrusions 36 and 39 intermittently. In addition to preventing the developer from aggregating at the protruding pieces 36 and 39, the developer can be fed in the axial direction so as to be swung. As a result, in the rotating container main body 31, it is possible to reliably prevent the developer from being agitated and being agglomerated by being shaken and agglomerated.
また本実施の形態の現像剤収納容器３０によれば、支持部材３２によって容器本体３１を安定して支持しながら回転軸線Ｌ３１まわりに回転することができる。現像剤が収納される従来技術のような円筒状の容器を、その軸線が水平面に対して垂直になるように立設して放置しておくと、容器の下方の現像剤が凝集する危険性がある。またこのような現像剤の凝集をできるだけ防ぐために、前記容器を、その軸線が水平面に対して平行になるように水平面に設置すると、前記容器が転がってしまう。本実施の形態の現像剤収納容器３０では、支持部材３２の支持台４９を水平面に設置することで、容器本体３１の軸線Ｌ３１を水平面に平行に安定して配置することができる。また万一、現像剤収納容器３０に収納される現像剤が部分的に凝集しても、たとえば利用者がシャッタ部６５のシャッタ６５ａを閉位置Ｐ１に配置して容器本体３１を回転させることによって、現像剤を容易に攪拌して粉体状にすることができる。
Further, according to the developer container 30 of the present embodiment, the container body 31 can be rotated around the rotation axis L31 while being stably supported by the support member 32. If a cylindrical container as in the prior art in which developer is stored is left standing with its axis perpendicular to the horizontal plane, the developer under the container may agglomerate There is. Further, in order to prevent such agglomeration of the developer as much as possible, when the container is placed on a horizontal plane so that its axis is parallel to the horizontal plane, the container rolls. In the developer container 30 of the present embodiment, the axis L31 of the container body 31 can be stably arranged in parallel to the horizontal plane by installing the support base 49 of the support member 32 on the horizontal plane. Even if the developer stored in the developer storage container 30 partially aggregates, for example, the user places the shutter 65a of the shutter unit 65 in the closed position P1 and rotates the container body 31. The developer can be easily stirred to form a powder.
さらに容器本体３１の軸線方向両端部３３ａ，３４ａにおける外周面と端面とが連通する面３３ｃ，３４ｃは、前述のように半径方向内方に傾斜するような曲面状に形成されるので、容器本体３１の軸線方向両端部３３ａ，３４ａのいずれかを水平面に設置して、軸線Ｌ３１が水平面に垂直になるようにして現像剤収納容器３０を水平面に立設させようとしても、倒れやすくなっている。これによって利用者が現像剤収納容器３０を軸線Ｌ３１が水平面に垂直になるようにして立設して放置することを防止して、収納される現像剤が凝集する要因を減らすことができる。
Further, since the surfaces 33c and 34c where the outer peripheral surfaces and end surfaces of the both ends 33a and 34a in the axial direction of the container main body 31 communicate with each other are formed in a curved shape inclined inward in the radial direction as described above, Even if one of the end portions 33a and 34a in the axial direction of 31 is installed on the horizontal plane and the developer container 30 is erected on the horizontal plane so that the axis L31 is perpendicular to the horizontal plane, it is easy to fall down. . This prevents the user from standing and leaving the developer storage container 30 so that the axis L31 is perpendicular to the horizontal plane, thereby reducing factors that cause the stored developer to aggregate.
また本実施の形態の現像剤収納容器３０によれば、支持部材３２は、容器本体３１の少なくとも第３容器部３５を含む部分を、半径方向外方から全周にわたって支持している。さらに容器本体３１と支持部材３２との間に２つのシール材４７が設けられて、前述のようにシールが達成されているので、容器本体３１が回転しても、容器本体３１と支持部材３２との間から現像剤が漏出することを防止できる。
Further, according to the developer storage container 30 of the present embodiment, the support member 32 supports the part including at least the third container part 35 of the container main body 31 from the outside in the radial direction over the entire circumference. Further, since two sealing members 47 are provided between the container body 31 and the support member 32 and the sealing is achieved as described above, even if the container body 31 rotates, the container body 31 and the support member 32. The developer can be prevented from leaking from between the two.
また本実施の形態の現像剤収納容器３０によれば、現像剤の排出量は、第１保持空間６２ａの容積と、容器本体３１の回転速度に依存する。本実施の形態の現像剤収納容器３０において、凹所は第１および第２凹所４１，４２の２個設け、第１凹所４１だけに排出孔４３を設ける構成としたけれども、これに限ることはない。たとえば、容器本体３１の１回転あたりの現像剤の排出量を増やしたい場合には、第２凹所４２を第１凹所４１と同様の形状にして排出孔４３を設ける構
成としてもよい。また凹所の数および排出孔の数をさらに増やすようにしてもよい。
Further, according to the developer storage container 30 of the present embodiment, the developer discharge amount depends on the volume of the first holding space 62 a and the rotation speed of the container main body 31. In the developer storage container 30 of the present embodiment, two recesses, the first and second recesses 41 and 42, are provided, and the discharge hole 43 is provided only in the first recess 41. However, the present invention is not limited to this. There is nothing. For example, when it is desired to increase the amount of developer discharged per rotation of the container body 31, the second recess 42 may have the same shape as the first recess 41 and the discharge hole 43 may be provided. Further, the number of recesses and the number of discharge holes may be further increased.
本実施の形態において、送り手段は、軸線Ｌ３１まわりの第１延在方向に延び、半径方向内方に突出する第１突起片３６、および軸線Ｌ３１まわりの第２延在方向に延び、半径方向内方に突出する第２突起片３９を有するとしたけれども、これに限ることはない。送り手段は、たとえば半径方向外方に陥没し、第１延在方向および第２延在方向に延びて、周方向および軸線方向に間隔をあけて設けられる溝であってもよい。
In the present embodiment, the feeding means extends in the first extending direction around the axis L31, extends in the radial direction, and extends in the second extending direction around the axis L31. Although it has said that it has the 2nd protrusion piece 39 which protrudes inward, it is not restricted to this. The feeding means may be, for example, a groove that is recessed outward in the radial direction, extends in the first extending direction and the second extending direction, and is provided at intervals in the circumferential direction and the axial direction.
図２４は、本発明の実施の他の形態の画像形成装置７０を示す断面図である。図２５は、トナーホッパ７２付近を拡大して示す断面図である。図２６は、トナーホッパ７２付近を拡大して示す平面図である。図２４は、画像形成装置７０の正面外装部７１ａ側から見た断面図であり、理解を容易にするために、厚みを省略している。正面外装部７１ａとは、通常、利用者が画像形成装置７０を利用するときに、利用者が臨んでいる部分である。背面外装部７１ｂとは、画像形成装置７０において、前記正面外装部７１ａ側にいる利用者から見て、前記正面外装部７１ａに対して対して裏側に当たる部分である。また画像形成装置７０は、水平面に設置されているとし、正面外装部７１ａから背面外装部７１ｂに向かう方向である正背方向Ｅは、水平面に平行となる。
FIG. 24 is a cross-sectional view showing an image forming apparatus 70 according to another embodiment of the present invention. FIG. 25 is an enlarged sectional view showing the vicinity of the toner hopper 72. FIG. 26 is an enlarged plan view showing the vicinity of the toner hopper 72. FIG. 24 is a cross-sectional view of the image forming apparatus 70 viewed from the front exterior portion 71a side, and the thickness is omitted for easy understanding. The front exterior portion 71a is a portion where the user usually faces when the user uses the image forming apparatus 70. In the image forming apparatus 70, the back exterior portion 71b is a portion that hits the back side of the front exterior portion 71a when viewed from the user on the front exterior portion 71a side. Further, it is assumed that the image forming apparatus 70 is installed on a horizontal plane, and a normal direction E that is a direction from the front exterior portion 71a toward the back exterior portion 71b is parallel to the horizontal plane.
プリンタ装置および複写装置などの電子写真記録方式の画像形成装置７０は、第１の実施形態の現像剤収納容器３０および画像形成装置本体（以後、単に「装置本体」と表記することがある）７１を含む。現像剤収納容器３０は、装置本体７１に備えられるトナーホッパ７２に、装置本体７１の正面外装部７１ａに設けられる開閉自在の容器着脱口（図示せず）を介して着脱可能に装着される。また画像形成装置本体７１は、正面外装部７１ａよりも背面外装部７１ｂ側に筐体正面部９３が設けられ、厚み方向に貫通し現像剤収納容器３０を挿通可能な開口部が形成される。また画像形成装置本体７１は、背面外装部７１ｂよりも正面外装部７１ａ側に筐体背面部９４が設けられる。筐体正面部９３および筐体背面部９４を含む筐体（全ては図示せず）によって、画像形成装置本体７１の各種構成が保持される。
An electrophotographic recording type image forming apparatus 70 such as a printer and a copying apparatus includes a developer container 30 and an image forming apparatus main body (hereinafter, simply referred to as “apparatus main body”) 71 according to the first embodiment. including. The developer storage container 30 is detachably attached to a toner hopper 72 provided in the apparatus main body 71 via an openable / detachable container attachment / detachment opening (not shown) provided in the front exterior portion 71 a of the apparatus main body 71. Further, the image forming apparatus main body 71 is provided with a housing front portion 93 on the back exterior portion 71b side of the front exterior portion 71a, and an opening is formed through which the developer storage container 30 can be inserted. Further, the image forming apparatus main body 71 is provided with a housing rear surface portion 94 on the front outer surface portion 71a side with respect to the rear surface outer surface portion 71b. Various configurations of the image forming apparatus main body 71 are held by a casing (all not shown) including the casing front portion 93 and the casing back portion 94.
トナーホッパ７２は、ハウジング７３、現像剤供給部７４、攪拌部材７５および供給ローラ７６を備える。ハウジング７３の内空間は、現像剤供給部７４によって、少なくとも容器収容空間７７と攪拌空間７８とに分割される。容器収容空間７７は、装置本体７１の正面外装部７１ａに臨んで開放している。攪拌空間７８は、大略的に閉じた空間である。現像剤収納容器３０は、前記収納容器空間７７に配置される。
The toner hopper 72 includes a housing 73, a developer supply unit 74, a stirring member 75, and a supply roller 76. The inner space of the housing 73 is divided into at least a container housing space 77 and a stirring space 78 by the developer supply unit 74. The container housing space 77 is open facing the front exterior portion 71 a of the apparatus main body 71. The stirring space 78 is a substantially closed space. The developer storage container 30 is disposed in the storage container space 77.
容器収容空間７７に臨むハウジング７３の上壁部７３ａには、現像剤収納容器３０の支持部材３２の第１案内片５３が嵌入可能な、装置本体７１の正背方向Ｅに延びる第１案内凹所７９が形成される。第１案内凹所７９は、現像剤収納容器３０の支持部材３２の第１案内片５３が長手方向、換言すれば、装置本体７１の正背方向Ｅに平行であって、正面外装部７１ａから背面外装部７１ｂに向かう方向の装着方向Ｅ１および装着方向Ｅ１とは逆の方向である離脱方向Ｅ２に摺動可能にして嵌合可能である。また容器収容空間７７に臨むハウジング７３の前記上壁部７３ａに対向する下壁部７３ｂには、現像剤収納容器３０の支持部材３２の第２案内片５４が嵌入可能な、装置本体７１の正背方向Ｅに延びる第２案内凹所８０が形成される。第２案内凹所８０は、現像剤収納容器３０の支持部材３２の第２案内片５４が長手方向、換言すれば、装置本体７１の装着方向Ｅ１および離脱方向Ｅ２に摺動可能にして嵌合可能である。
A first guide recess extending in the front-back direction E of the apparatus main body 71 into which the first guide piece 53 of the support member 32 of the developer storage container 30 can be fitted into the upper wall portion 73a of the housing 73 facing the container storage space 77. A location 79 is formed. The first guide recess 79 is formed so that the first guide piece 53 of the support member 32 of the developer container 30 is parallel to the longitudinal direction, in other words, the front-back direction E of the apparatus main body 71, and from the front exterior portion 71a. The mounting direction E1 in the direction toward the rear exterior portion 71b and the detachable direction E2 that is opposite to the mounting direction E1 can be slidably fitted. Further, the main body 71 of the apparatus main body 71 in which the second guide piece 54 of the support member 32 of the developer container 30 can be fitted in the lower wall part 73 b facing the upper wall part 73 a of the housing 73 facing the container housing space 77. A second guide recess 80 extending in the back direction E is formed. The second guide recess 80 is fitted so that the second guide piece 54 of the support member 32 of the developer container 30 can slide in the longitudinal direction, in other words, in the mounting direction E1 and the detaching direction E2 of the apparatus main body 71. Is possible.
現像剤供給部７４は、ハウジング７３の内空間を、容器収容空間７７と攪拌空間７８とに分割する板状の部材であり、その厚さ方向に貫通して、容器収容空間７７と攪拌空間７８とを連通する連通孔８１が設けられる。また現像剤供給部７４の連通孔８１の下方には、容器収容空間７７に突出する案内部材８２が設けられる。
The developer supply unit 74 is a plate-like member that divides the inner space of the housing 73 into a container housing space 77 and a stirring space 78, and penetrates in the thickness direction so as to penetrate the container housing space 77 and the stirring space 78. And a communication hole 81 is provided. A guide member 82 that projects into the container housing space 77 is provided below the communication hole 81 of the developer supply unit 74.
図２７は、本体側連結部８３を拡大して示す斜視図である。装置本体７１のモータなどの駆動源８４からの現像剤収納容器３０の容器本体３１を回転するための駆動力は、歯車などの減速装置８５を介して、本体側連結部８３に伝達する。駆動手段は、本体側連結部８３、駆動源８４および減速装置８５を含む。本体側連結部８３は、回転軸８６、継手受部８７およびばね部材８８を含んで構成される。回転軸８６は、その軸線Ｌ８６が装置本体７１の正背方向Ｅに平行にして、装置本体７１の背面外装部７１ｂ側のハウジング７３の背壁部となる筐体背面部９４を厚さ方向に貫通して設けられる軸受部８９に回転自在に挿通されて、その遊端部が容器収容空間７７に配置される。
FIG. 27 is an enlarged perspective view showing the main body side connecting portion 83. A driving force for rotating the container main body 31 of the developer storage container 30 from a driving source 84 such as a motor of the apparatus main body 71 is transmitted to the main body side connecting portion 83 via a speed reducer 85 such as a gear. The drive means includes a main body side connecting portion 83, a drive source 84, and a speed reducer 85. The main body side connecting portion 83 includes a rotating shaft 86, a joint receiving portion 87, and a spring member 88. The rotating shaft 86 has a longitudinal axis L86 parallel to the front-back direction E of the apparatus main body 71, and the casing rear surface portion 94 serving as the back wall portion of the housing 73 on the rear surface exterior portion 71b side of the apparatus main body 71 in the thickness direction. The free end portion is disposed in the container housing space 77 by being rotatably inserted into a bearing portion 89 provided therethrough.
継手受部８７は、略円盤状に形成され、容器収容空間７７に臨み、回転軸８６と一体となって軸線Ｌ８６まわりに回転自在にして、回転軸８６の遊端部に連結される。継手受部８７の筐体背面部９４に臨む表面部とは逆の表面部８７ａの中央部には、回転軸８６の軸線Ｌ８６を軸線として筐体背面部９４側に陥没し、現像剤収納容器３０の補給蓋４６が装着されている補給口部４５が嵌入可能な補助凹所９６が設けられる。また継手受部８７の前記表面部８７ａの前記補助凹所９６よりも半径方向外方には、互いに回転軸８６の軸線Ｌ８６をに関して対称な位置に配置されて、筐体背面部９４側に陥没する複数、本実施の形態では２個の嵌合凹所９０が形成される。これらの嵌合凹所９０は、容器本体３１の各嵌合凸部３７に対応する形状となっており、容器本体３１の各嵌合凸部３７が嵌合凹所９０に嵌入することで、嵌合凸部３７と嵌合凹所９０とが嵌合する。
The joint receiving portion 87 is formed in a substantially disk shape, faces the container housing space 77, and is connected to the free end portion of the rotating shaft 86 so as to be rotatable around the axis L 86 together with the rotating shaft 86. At the center of the surface portion 87a opposite to the surface portion facing the housing rear surface portion 94 of the joint receiving portion 87, the developer receiving container is depressed toward the housing rear surface portion 94 with the axis L86 of the rotation shaft 86 as an axis. An auxiliary recess 96 into which the replenishing port 45 to which 30 replenishing lids 46 are attached can be fitted. Further, radially outward from the auxiliary recess 96 of the surface portion 87a of the joint receiving portion 87, the joint receiving portion 87 is disposed at a symmetrical position with respect to the axis L86 of the rotation shaft 86, and is depressed toward the housing rear surface portion 94 side. In this embodiment, two fitting recesses 90 are formed. These fitting recesses 90 have shapes corresponding to the respective fitting convex portions 37 of the container main body 31, and the fitting convex portions 37 of the container main body 31 are fitted into the fitting concave portions 90. The fitting convex part 37 and the fitting recess 90 are fitted.
また継手受部８７は、回転軸８６の遊端部から脱落することなく、回転軸８６の軸線方向に変位自在である。また圧縮コイルばねなどで実現されるばね部材８８は、筐体背面部９４と継手受部８７との間に配置され、回転軸８６および継手受部８７の回転を阻害することなく、継手受部８７が筐体背面部９４から離間する方向へのばね力を付勢する。現像剤収納容器３０の容器本体３１の嵌合凸部３７を含む軸線方向一端部３３ａと、本体側連結部８３の継手受部８７とによって、カップリング構造が形成される。したがって容器本体３１の嵌合凸部３７は、本体側連結部８３の継手受部８７に着脱可能に連結することができる。
Further, the joint receiving portion 87 is displaceable in the axial direction of the rotating shaft 86 without dropping from the free end portion of the rotating shaft 86. A spring member 88 realized by a compression coil spring or the like is disposed between the housing back surface portion 94 and the joint receiving portion 87, and does not hinder the rotation of the rotary shaft 86 and the joint receiving portion 87. 87 biases the spring force in a direction away from the housing back surface portion 94. A coupling structure is formed by the axial one end 33 a including the fitting convex portion 37 of the container main body 31 of the developer container 30 and the joint receiving portion 87 of the main body side connecting portion 83. Therefore, the fitting convex part 37 of the container main body 31 can be detachably connected to the joint receiving part 87 of the main body side connecting part 83.
現像剤収納容器３０を装置本体７１に装着するときは、現像剤収納容器３０を、回転軸線Ｌ３１と装着方向Ｅ１とを平行にして、装置本体７１の正面外装部７１ａからトナーホッパ７２の容器収納空間７７に挿入する。このとき現像剤収納容器３０の支持部材３２の第１案内片５３をハウジング７３の第１案内凹所７９に嵌合するとともに、支持部材３２の第２案内片５４をハウジング７３の第２案内凹所８０に嵌合して、支持部材３２の装着方向Ｅ１および離脱方向Ｅ２を除く方向への変位を阻止する。この状態で、現像剤収納容器３０を装着方向Ｅ１に変位させて、支持部材３２の排出部５０の導通孔５１と現像剤供給部７４の連通孔８１とが連通する位置である装着位置に配置する。このとき本体側連結部８３の継手受部８７が容器本体３１の嵌合凸部３７によって装着方向Ｅ１に押圧されて縮退し、ばね部材８８が圧縮される。
When the developer storage container 30 is mounted on the apparatus main body 71, the container storage space of the toner hopper 72 from the front exterior portion 71a of the apparatus main body 71 is set so that the rotation axis L31 and the mounting direction E1 are parallel to each other. 77. At this time, the first guide piece 53 of the support member 32 of the developer container 30 is fitted into the first guide recess 79 of the housing 73, and the second guide piece 54 of the support member 32 is fitted to the second guide recess of the housing 73. The support member 32 is fitted to the location 80 to prevent displacement of the support member 32 in directions other than the mounting direction E1 and the removal direction E2. In this state, the developer container 30 is displaced in the mounting direction E1, and is disposed at the mounting position where the conduction hole 51 of the discharge portion 50 of the support member 32 and the communication hole 81 of the developer supply portion 74 communicate with each other. To do. At this time, the joint receiving portion 87 of the main body side connecting portion 83 is pressed in the mounting direction E1 by the fitting convex portion 37 of the container main body 31 and retracts, and the spring member 88 is compressed.
トナーホッパ７２には、現像剤収納容器３０が装着位置に配置されている状態で、支持部材３２が装着方向Ｅ１および離脱方向Ｅ２への変位の規制および規制の解除を行う規制部材が設けられる（図示せず）。現像剤収納容器３０に収納されていた現像剤が全て排出されると、利用者は、前記規制部材による支持部材３２への規制を解除して、現像剤収納容器３０を離脱方向Ｅ２に変位させて、装置本体７１から現像剤収納容器３０を離脱する。
The toner hopper 72 is provided with a regulating member that regulates and releases the displacement of the support member 32 in the loading direction E1 and the detaching direction E2 in a state where the developer container 30 is disposed at the loading position (FIG. Not shown). When all the developer stored in the developer storage container 30 is discharged, the user releases the restriction on the support member 32 by the restriction member, and displaces the developer storage container 30 in the separation direction E2. Then, the developer container 30 is detached from the apparatus main body 71.
トナーホッパ７２の現像剤供給部７４の容器収容空間７７に臨む連通孔８１の周囲には、現像剤収納容器３０のシャッタ部６５のシャッタ６５ａをスライド変位させるためのシャッタ変位手段が設けられる（図示せず）。現像剤収納容器３０を、回転軸線Ｌ３１と装着方向Ｅ１とを平行にして、装置本体７１の正面外装部７１ａからトナーホッパ７２の容器収納空間７７に挿入するとき、シャッタ変位手段によって、閉位置Ｐ１に配置されていたシャッタ６５ａが第２水平方向一方向Ｂ１にスライド変位して、現像剤収納容器３０が装着位置に配置されると、シャッタ６５ａは開位置Ｐ２に配置される。また装置本体７１に装着されて装着位置に配置されている現像剤収納容器３０を離脱方向Ｅ２に変位させて、装置本体７１から現像剤収納容器３０を離脱するとき、シャッタ変位手段によって、開位置Ｐ２に配置されていたシャッタ６５ａが第２水平方向他方向Ｂ２にスライド変位して、閉位置Ｐ１に配置される。
A shutter displacing means for slidingly displacing the shutter 65a of the shutter portion 65 of the developer storage container 30 is provided around the communication hole 81 facing the container storage space 77 of the developer supply portion 74 of the toner hopper 72 (not shown). ) When the developer storage container 30 is inserted into the container storage space 77 of the toner hopper 72 from the front exterior portion 71a of the apparatus main body 71 with the rotation axis L31 and the mounting direction E1 parallel to each other, the shutter displacing means moves the closed position P1. When the arranged shutter 65a is slid in the second horizontal direction B1 and the developer container 30 is arranged at the mounting position, the shutter 65a is arranged at the open position P2. Further, when the developer storage container 30 mounted on the apparatus main body 71 and disposed at the mounting position is displaced in the detaching direction E2 to release the developer storage container 30 from the apparatus main body 71, the shutter displacing means opens the open position. The shutter 65a arranged at P2 is slid in the second other direction B2 in the second horizontal direction and arranged at the closed position P1.
また現像剤収納容器３０の支持部材３２の排出部５０の導通孔５１の周囲、およびトナーホッパ７２の現像剤供給部７４の容器収容空間７７に臨む連通孔８１の周囲の、少なくともいずれかには、導通孔５１から連通孔８１に流下する現像剤が攪拌空間７８以外に漏れ出ることを防止するためのシール材が設けられる（図示せず）。
At least one of the periphery of the conduction hole 51 of the discharge portion 50 of the support member 32 of the developer storage container 30 and the communication hole 81 facing the container storage space 77 of the developer supply portion 74 of the toner hopper 72 is provided. A sealing material is provided for preventing the developer flowing down from the conduction hole 51 to the communication hole 81 from leaking outside the stirring space 78 (not shown).
図２６に示すように、装置本体７１において、現像部２００は、正背方向Ｅ中間部に配置される。これは装置本体７１の感光体ドラム２０２が、装置本体７１において正背方向Ｅ中間部に配置されているためである。また本体側連結部８３ならびに攪拌部材７５および供給ローラ７６を回転するための駆動源８４および減速装置８５などの駆動部は、装置本体２１において筐体背面部９４と背面外装部７１ｂとの間に配置される。したがって現像剤収納容器３０が装着位置に配置されている状態で、現像剤収納容器３０の支持部材３２は、装置本体７１の正背方向Ｅ中間部に配置される。現像剤収納容器３０において、前述のように容器本体３１の支持部材３２から嵌合凸部３７が形成される軸線方向一端部３３ａの端面までの長さ寸法は、支持部材３２から軸線方向他端部３４ａの端面までの長さ寸法よりも小さく形成される。
As shown in FIG. 26, in the apparatus main body 71, the developing unit 200 is disposed in the middle part in the normal direction E. This is because the photosensitive drum 202 of the apparatus main body 71 is disposed in the middle portion in the front-back direction E in the apparatus main body 71. The main body side connecting portion 83, the driving source 84 for rotating the stirring member 75 and the supply roller 76, and the driving portion such as the speed reduction device 85 are provided between the housing back surface portion 94 and the back surface exterior portion 71b in the device main body 21. Be placed. Accordingly, the support member 32 of the developer storage container 30 is disposed at the middle portion in the front-back direction E of the apparatus main body 71 in a state where the developer storage container 30 is disposed at the mounting position. In the developer storage container 30, as described above, the length dimension from the support member 32 of the container body 31 to the end surface of the axial one end 33a where the fitting convex portion 37 is formed is from the support member 32 to the other end in the axial direction. It is formed smaller than the length dimension to the end face of the portion 34a.
本実施の形態の画像形成装置７０における現像剤収納容器３０では、支持部材３２は容器本体３１の軸線方向中間部に配置されるので、画像形成装置本体７１における装着位置に装着した状態で、支持部材３２は、装置本体７１における正背方向Ｅ中間部に配置される。これによって容器本体３１を、装置本体７１の正背方向Ｅ中間部から正面部まで伸ばすとともに、正背方向Ｅ中間部から背面まで伸ばして、容量を極めて大きくすることができる。本実施の形態では、図２６に示すように、現像剤収納容器３０の軸線方向他端部３４ａは、筐体正面部９３よりも正面外装部７１側に出っ張っている。
In the developer storage container 30 in the image forming apparatus 70 of the present embodiment, the support member 32 is disposed at the intermediate portion in the axial direction of the container main body 31, so that the support member 32 is supported in a state of being mounted at the mounting position in the image forming apparatus main body 71. The member 32 is disposed in the middle portion in the normal direction E in the apparatus main body 71. As a result, the container main body 31 can be extended from the middle portion of the device main body 71 in the front-back direction E to the front surface portion, and can be extended from the middle portion in the front-back direction E to the back surface to greatly increase the capacity. In the present embodiment, as shown in FIG. 26, the other axial end 34 a of the developer container 30 protrudes toward the front exterior portion 71 rather than the housing front portion 93.
また容器本体３１の支持部材３２から軸線方向一端部３３ａの端面までの長さ寸法を、支持部材３２から軸線方向他端部３４ａの端面までの長さ寸法よりも小さくすることで、装置本体７１の背面部において、容器本体３１の軸線方向一端部３３ａの嵌合凸部３７に連結される駆動源８４および減速装置８５を含む駆動部を設ける領域を確保することができる。このように現像剤収納容器３０は、装置本体７１内の空間を有効に利用して、かつ現像剤の収納量を可及的に大きくするという２つの比類ない効果を奏する。
Further, by making the length dimension from the support member 32 of the container body 31 to the end face of the one end portion 33a in the axial direction smaller than the length dimension from the support member 32 to the end face of the other end portion 34a in the axial direction. In the back surface portion, it is possible to secure a region in which a drive unit including a drive source 84 and a speed reducer 85 connected to the fitting convex portion 37 of the one axial end portion 33a of the container body 31 is provided. Thus, the developer storage container 30 has two unique effects of effectively using the space in the apparatus main body 71 and increasing the storage amount of the developer as much as possible.
このように現像剤収納容器３０が装着位置に配置されている状態で、駆動源８４を駆動して、継手受部８７を回転すると、継手受部８７の嵌合凹所９０と現像剤収納容器３０の嵌合凸部３７とが嵌合している状態では、そのまま容器本体３１が回転軸線Ｌ３１まわりに回転する。また、継手受部８７の嵌合凹所９０と現像剤収納容器３０の嵌合凸部３７とが嵌合していない状態では、継手受部８７の嵌合凹所９０と現像剤収納容器３０の嵌合凸部３７とが嵌合するまでは、しばらくの間、継手受部８７だけが角変位し、継手受部８７の嵌合凹所９０と現像剤収納容器３０の嵌合凸部３７とが嵌合すると、ばね部材８８によるばね力が付勢されて、継手受部８７の嵌合凹所９０と現像剤収納容器３０の嵌合凸部３７とが密着するように嵌合する。容器本体３１が回転軸線Ｌ３１まわりに回転する。このように現像剤収納容器３０の容器本体３１が回転軸線Ｌ３１まわりに回転することで、現像剤収納容器３０に収納されている現像剤が、支持部材３２の排出部５０の導通孔５１およびトナーホッパ７２の現像剤供給部７４の連通孔８１を介して、攪拌空間７８に供給されて収容される。
When the drive source 84 is driven and the joint receiving portion 87 is rotated in a state where the developer storage container 30 is arranged at the mounting position in this way, the fitting recess 90 of the joint receiving portion 87 and the developer storage container are rotated. In a state where the 30 fitting convex portions 37 are fitted, the container body 31 rotates around the rotation axis L31 as it is. In addition, in a state where the fitting recess 90 of the joint receiving portion 87 and the fitting convex portion 37 of the developer storage container 30 are not fitted, the fitting recess 90 of the joint receiving portion 87 and the developer storage container 30. Until the fitting convex portion 37 is fitted, only the joint receiving portion 87 is angularly displaced for a while, and the fitting concave portion 90 of the joint receiving portion 87 and the fitting convex portion 37 of the developer container 30 are fitted. Are engaged, the spring force of the spring member 88 is urged, and the fitting recess 90 of the joint receiving portion 87 and the fitting convex portion 37 of the developer storage container 30 are fitted in close contact with each other. The container body 31 rotates around the rotation axis L31. As the container main body 31 of the developer storage container 30 rotates about the rotation axis L31 in this way, the developer stored in the developer storage container 30 is allowed to flow into the conduction hole 51 of the discharge portion 50 of the support member 32 and the toner hopper. The developer is supplied to and stored in the stirring space 78 through the communication hole 81 of the developer supply unit 74.
攪拌部材７５および供給ローラ７６は、互いに間隔をあけて装置本体７１の正背方向Ｅに延び、攪拌空間７８に配置される。攪拌部材７５は、正背方向Ｅに平行な攪拌軸線Ｌ７５まわりに回転自在であり、攪拌軸線Ｌ７５方向に延びて可撓性を有する掻出部材９１を有する。また攪拌部材７５は、装置本体７１に設けられる駆動源８４からの駆動力によって、装置本体７１の正面から見て攪拌軸線Ｌ７５まわりの時計回り方向Ｊ１に回転する。供給ローラ７６は、正背方向Ｅに平行な供給軸線Ｌ７６まわりに回転自在であり、その外周面部は、たとえばスポンジなどの多孔質の樹脂から成る。また供給ローラ７６は、装置本体７１に設けられる駆動源８４からの駆動力によって、装置本体７１の正面から見て攪拌軸線Ｌ７６まわりの反時計回り方向Ｊ２に回転する。
The stirring member 75 and the supply roller 76 extend in the normal direction E of the apparatus main body 71 with a space therebetween and are disposed in the stirring space 78. The stirring member 75 is rotatable around a stirring axis L75 parallel to the front-back direction E, and has a scraping member 91 that extends in the direction of the stirring axis L75 and has flexibility. Further, the stirring member 75 is rotated in the clockwise direction J1 around the stirring axis L75 when viewed from the front of the apparatus main body 71 by the driving force from the driving source 84 provided in the apparatus main body 71. The supply roller 76 is rotatable about a supply axis L76 parallel to the front-back direction E, and the outer peripheral surface portion is made of a porous resin such as sponge, for example. Further, the supply roller 76 rotates in the counterclockwise direction J2 around the stirring axis L76 when viewed from the front of the apparatus main body 71 by the driving force from the drive source 84 provided in the apparatus main body 71.
トナーホッパ７２の攪拌空間７８に臨み、現像剤供給部７４に連通し、装置本体２１の正背方向Ｅに延び、攪拌部材７５の攪拌軸線Ｌ７５に垂直な断面形状が略Ｕ字状で、上方に開放する部分円筒内周面状に形成される攪拌壁部９２が設けられる。現像剤は１箇所の連通孔８１から攪拌空間７８に供給されるけれども、前述のように現像剤収納容器３０から排出される現像剤は、攪拌されるだけでなく気体とも混合されて微粉体状になり、極めて流動性が良好であるので、連通孔８１から供給されただけでも、攪拌空間７８において攪拌軸線Ｌ７５方向に拡散する。攪拌空間７８に収容された現像剤は、攪拌部材７５による攪拌によって、攪拌空間７８において攪拌軸線Ｌ７５方向にさらに拡散する。
Facing the stirring space 78 of the toner hopper 72, communicating with the developer supply unit 74, extending in the normal direction E of the apparatus main body 21, and having a substantially U-shaped cross section perpendicular to the stirring axis L 75 of the stirring member 75. An agitating wall 92 formed in the shape of the inner circumferential surface of the partial cylinder to be opened is provided. Although the developer is supplied to the stirring space 78 from one communicating hole 81, the developer discharged from the developer storage container 30 as described above is not only stirred but also mixed with gas to form a fine powder. Since the fluidity is extremely good, even if it is supplied from the communication hole 81, it diffuses in the stirring axis L75 in the stirring space 78. The developer accommodated in the stirring space 78 is further diffused in the direction of the stirring axis L75 in the stirring space 78 by stirring by the stirring member 75.
攪拌部材７５が回転すると、連通孔８１から供給され攪拌空間７８に収容される現像剤を攪拌するとともに、掻出部材９１は、その遊端部が攪拌壁部９２に当接しながら、攪拌空間７８に収容される現像剤を掻き出して供給ローラ７６に与える。したがって供給ローラ７６には、その軸線Ｌ７６方向にほぼ均一にして、微粉体状の現像剤が与えられる。また攪拌空間７８に収容される現像剤の残量が少なくなっても、掻出部材９１によって掻きとるようにして供給ローラ７６に与えられるので、供給ローラ７６に与えられずに攪拌空間７８に残留する現像剤を、可及的に少なくすることができる。供給ローラ７６に与えられた現像剤は、供給ローラ７６の回転によって、良好な状態で現像部２００に供給される。
When the agitating member 75 rotates, the developer supplied from the communication hole 81 and agitated in the agitating space 78 is agitated, and the scraping member 91 is in contact with the agitating wall 92 while the free end thereof abuts the agitating space 78. The developer contained in the toner is scraped out and supplied to the supply roller 76. Therefore, the supply roller 76 is supplied with the fine powder developer substantially uniformly in the direction of the axis L76. Further, even when the remaining amount of the developer stored in the stirring space 78 is reduced, it is given to the supply roller 76 by being scraped off by the scraping member 91, so that it remains in the stirring space 78 without being supplied to the supply roller 76. The developer to be used can be reduced as much as possible. The developer supplied to the supply roller 76 is supplied to the developing unit 200 in a good state by the rotation of the supply roller 76.
装置本体７１は、現像部２００、記録紙カセット２０１、感光体ドラム２０２、帯電部２０３、レーザ露光部２０４および定着部２０５をさらに含む。現像部２００は、トナーホッパ７２から供給される現像剤であるトナーと、予め用意されている磁性を有する粒子であるキャリアとを攪拌して２成分現像材を生成する。
The apparatus main body 71 further includes a developing unit 200, a recording paper cassette 201, a photosensitive drum 202, a charging unit 203, a laser exposure unit 204, and a fixing unit 205. The developing unit 200 agitates toner, which is a developer, supplied from the toner hopper 72 and a carrier, which is magnetic particles prepared in advance, to generate a two-component developer.
記録紙カセット２０１は、画像を形成すべき記録紙を保持する。感光体ドラム２０２は、外周部に感光体が設けられる円筒状のドラムであり、前記駆動部からの駆動力によって、その軸線まわりに回転する。帯電部２０３は、感光体ドラム２０２の感光体を帯電させて感光性を与える。レーザ露光部２０４は、帯電している感光体ドラム２０２の感光体をレーザ光像で露光して、感光体に静電潜像を形成する。
The recording paper cassette 201 holds recording paper on which an image is to be formed. The photoconductor drum 202 is a cylindrical drum having a photoconductor provided on the outer peripheral portion thereof, and rotates around its axis by a driving force from the driving unit. The charging unit 203 charges the photosensitive member of the photosensitive drum 202 to impart photosensitivity. The laser exposure unit 204 exposes the charged photosensitive member of the photosensitive drum 202 with a laser light image to form an electrostatic latent image on the photosensitive member.
現像部２００は、２成分現像材を攪拌するとともに、静電潜像が形成された感光体ドラム２０２の感光体に２成分現像材を供給して現像して、静電潜像に対応するトナー像が形成される。感光体ドラム２０２は、記録紙カセット２０１からの給紙される記録紙に、感光体ドラム２０２のトナー像を転写する。定着部２０５は、トナー像が転写された記録紙のトナー像を記録紙に定着する。トナー像が定着されて画像が形成された記録紙は、排紙トレイ２０６に排出される。現像部４における２成分現像材のトナー濃度を一定にするために、供給ローラ７６は、その外周部がスポンジで形成されており、さらにその回転が制御されている。これによって供給ローラ７６は、適量なトナーを微粉末の状態で現像部２００に供給する。
The developing unit 200 agitates the two-component developer, supplies the two-component developer to the photosensitive member of the photosensitive drum 202 on which the electrostatic latent image is formed, and develops the toner corresponding to the electrostatic latent image. An image is formed. The photosensitive drum 202 transfers the toner image of the photosensitive drum 202 onto the recording paper fed from the recording paper cassette 201. The fixing unit 205 fixes the toner image of the recording paper to which the toner image is transferred onto the recording paper. The recording paper on which the toner image is fixed and the image is formed is discharged to the paper discharge tray 206. In order to make the toner density of the two-component developer in the developing unit 4 constant, the outer periphery of the supply roller 76 is formed of a sponge, and the rotation thereof is controlled. Accordingly, the supply roller 76 supplies an appropriate amount of toner to the developing unit 200 in a fine powder state.
このような現像剤収納容器３０の容器本体３１、ならびにトナーホッパ７２の攪拌部材７５および供給ローラ７６の制御について以下に簡単に述べる。トナーホッパ７２の攪拌空間７８に収容される現像剤（以後、「トナー」と表記することがある）が少なくなって来たことを、攪拌壁部９２に設けられるトナー残量検出部９５が検出すると、図示しない制御部は、駆動源８４を制御して、現像剤収納容器３０の容器本体３１を回転して、トナーを攪拌空間７８に供給させる。容器本体３１を予め定める時間回転しても、トナー残量検出部９５から攪拌空間７８に収容されるトナーの量が満杯になっていないと検出されると、制御部は、容器本体３１の回転を停止するとともに、図示しない表示部に現像剤収納容器３０を交換することを意味するメッセージを表示して、利用者に報知する。この時点では、トナーホッパ７２の攪拌空間７８には、相当量の現像剤が収納されている。トナーホッパ７２の攪拌空間７８に現像剤が収容されているうちに、利用者は空になった現像剤収納容器３０を装置本体７１から離脱して、現像剤が収納されている新たな現像剤収納容器３０を装置本体７１に装着する。これによって画像形成装置７０が記録紙に画像形成している途中であっても、画像形成に必要な現像剤はトナーホッパ７２の攪拌空間７８に収容されているので、画像形成作業を中断することなく装置本体７１への現像剤の補給をすることができる。
Control of the container main body 31 of the developer storage container 30 and the stirring member 75 and the supply roller 76 of the toner hopper 72 will be briefly described below. When the toner remaining amount detecting unit 95 provided in the stirring wall 92 detects that the amount of developer (hereinafter, sometimes referred to as “toner”) stored in the stirring space 78 of the toner hopper 72 has decreased. The control unit (not shown) controls the drive source 84 to rotate the container main body 31 of the developer storage container 30 and supply the toner to the stirring space 78. If it is detected from the toner remaining amount detection unit 95 that the amount of toner stored in the stirring space 78 is not full even if the container body 31 is rotated for a predetermined time, the control unit rotates the container body 31. And a message indicating that the developer storage container 30 is to be replaced is displayed on a display unit (not shown) to notify the user. At this time, a considerable amount of developer is stored in the stirring space 78 of the toner hopper 72. While the developer is stored in the stirring space 78 of the toner hopper 72, the user removes the empty developer storage container 30 from the apparatus main body 71 and stores a new developer in which the developer is stored. The container 30 is attached to the apparatus main body 71. Thus, even when the image forming apparatus 70 is in the process of forming an image on the recording paper, the developer necessary for image formation is stored in the stirring space 78 of the toner hopper 72, so that the image forming operation is not interrupted. The developer can be supplied to the apparatus main body 71.
本実施の形態では、現像剤を補給するときには、現像剤収納容器３０だけを交換するだけでよく、利用者は、たとえば現像剤収納容器３０の支持部材３２と第２容器部３４とを把持して、嵌合凸部３７が形成される第１容器部３３から、装置本体７１の筐体正面部９３から装着方向Ｅ１に向けてトナーホッパ７２の容器収容空間７７に挿入するだけでよく、非常に簡便である。また装置本体７１から現像剤収納容器３０を離脱するときには、利用者は、現像剤収納容器３０の第２容器部３４を把持して、離脱方向Ｅ２に向けて引っ張り出すだけでよく、非常に簡便である。
In the present embodiment, when the developer is replenished, it is only necessary to replace the developer container 30, and the user holds the support member 32 and the second container part 34 of the developer container 30, for example. Thus, it is only necessary to insert from the first container part 33 in which the fitting convex part 37 is formed into the container accommodating space 77 of the toner hopper 72 from the housing front part 93 of the apparatus main body 71 toward the mounting direction E1. Convenient. Further, when the developer storage container 30 is detached from the apparatus main body 71, the user only has to hold the second container portion 34 of the developer storage container 30 and pull it out in the removal direction E2, which is very simple. It is.
また収納される現像剤を攪拌して凝集を防ぐためには、従来では大重量かつ大形のトナーカートリッジを利用者が上下左右に揺動したけれども、本実施の形態の現像剤収納容器３０では、利用者が容器本体３１を回転軸線Ｌ３１まわりに回転するだけでよく、非常に容易である。また本実施の形態の現像剤収納容器３０は、収納される現像剤の攪拌を行うための構成が非常に簡単である。また現像剤収納容器３０は、容器本体３１と支持部材３２との間がシールを達成しているとともに、現像剤収納容器３０が装置本体７１に装着位置において装着されている場合には、互いに連通する排出部５０の導通孔５１周囲および現像剤供給部７４の連通孔８１の周囲の少なくともいずれかシールを達成しているので、トナーホッパ７２の容器収容空間７７において現像剤が漏れ出ることが可及的に防止できる。したがって、利用者が現像剤収納容器３０の交換をするときに、現像剤によって手が汚れることを可及的に防止することができる。また現像剤収納容器３０は、大略的に円筒状であるので、細長い直方体状の梱包箱に収納することができ、運搬および補間が極めて容易である。
Further, in order to stir the stored developer to prevent agglomeration, a user has conventionally swung a large and large toner cartridge vertically and horizontally, but in the developer storage container 30 of the present embodiment, The user only needs to rotate the container body 31 around the rotation axis L31, which is very easy. Further, the developer storage container 30 of the present embodiment has a very simple configuration for stirring the developer stored therein. The developer storage container 30 achieves a seal between the container main body 31 and the support member 32, and communicates with each other when the developer storage container 30 is mounted on the apparatus main body 71 at the mounting position. Since at least one of the periphery of the conduction hole 51 of the discharging unit 50 and the periphery of the communication hole 81 of the developer supply unit 74 is achieved, the developer can leak out in the container housing space 77 of the toner hopper 72. Can be prevented. Therefore, when the user replaces the developer storage container 30, it is possible to prevent as much as possible that the hand is soiled by the developer. Further, since the developer storage container 30 is substantially cylindrical, it can be stored in an elongated rectangular parallelepiped packing box, and is very easy to transport and interpolate.
また現像剤収納容器３０は、前述したように容器本体３１を回転するための回転力をあまり大きくすること無く、さらに容器本体３１の１回転あたりの現像剤の排出量が可及的に一定量である。これによって容器本体３１の回転速度を高める必要が無く低速でも、トナーホッパ７２の攪拌空間７８への現像剤の供給が可能であり、容器本体３１の１回転あたりの現像剤の排出量を可及的に一定にして、前記攪拌空間７８に現像剤を供給可能であり、駆動源８４のトルクを小さくででき、駆動源８４を、たとえば小形のモータにすることができる。
Further, the developer storage container 30 does not increase the rotational force for rotating the container body 31 as described above, and the developer discharge amount per rotation of the container body 31 is as constant as possible. It is. As a result, it is not necessary to increase the rotation speed of the container main body 31, and the developer can be supplied to the stirring space 78 of the toner hopper 72 even at a low speed. The developer can be supplied to the agitating space 78, the torque of the drive source 84 can be reduced, and the drive source 84 can be a small motor, for example.
本実施の形態の画像形成装置７０は、第１の実施形態の現像剤収納容器３０を着脱自在に搭載されるとしたけれども、これに限ることはない。たとえば第２および第３の実施形態の現像剤収納容器３０Ａ，３０Ｂを着脱自在に搭載するようにしてもよい。
Although the image forming apparatus 70 of the present embodiment is detachably mounted with the developer storage container 30 of the first embodiment, the present invention is not limited to this. For example, the developer containers 30A and 30B of the second and third embodiments may be detachably mounted.
前述の実施の形態の現像剤収納容器３０および画像形成装置７０において、２成分現像の場合として扱ったけれども、トナーのみの現像システムでも適用可能である。
Although the developer storage container 30 and the image forming apparatus 70 of the above-described embodiment are treated as the case of two-component development, the present invention can also be applied to a toner-only development system.
