JP4820775B2 - Coupling mechanism - Google Patents

Description

  The present invention relates to a coupling mechanism between an output unit and a transmission unit. More specifically, the present invention relates to an output unit that outputs rotational power, and can be detached from the output unit, and the rotational power output from the output unit is reciprocated. It is related with the connection mechanism with the transmission part which can be converted into.

  As a configuration for connecting a rotary power unit that has a rotary power source and outputs the rotary power to the outside and a driven unit that receives the rotary power from the outside and performs some predetermined operation so that the rotary power can be transmitted. For example, a shaft coupling or a clutch is used.

  Various clutches are known for connecting the rotational power unit and the driven unit so that the transmission of the rotational power can be intermittently connected. However, in general, the clutch can intermittently transmit and receive the rotational power, but the drive shaft and the driven shaft cannot be physically easily separated or coupled. In other words, it is difficult to easily separate or combine the output part of the rotary power unit and the transmission part of the driven unit.

  By the way, some recent vacuum cleaners have a wave-shaped filter and a tapping member that rotates and moves (see Patent Document 1 and Patent Document 2). In such a vacuum cleaner, the wave-shaped filter is hit by rotating the hitting member, and dust and dust adhering to the wave-shaped filter can be dropped from the filter by this impact.

  In addition, in the above-described configuration, there is also a mechanism having a mechanism for rotating the dust removing rotator by rotating a gear provided on the take-up reel of the power cord (see Patent Documents 3 to 5). According to such a configuration, the dust removal rotating body rotates in conjunction with the rotation of the take-up reel of the power cord. Therefore, the user can remove dust attached to the filter without performing a special operation. Can do.

  In addition, various vacuum cleaners in which dust removing means for removing attached dust are disposed in a dust collection box (dust box) have been disclosed (see Patent Documents 6 to 9).

  However, since the conventional filter dust removal structure has not been developed as a dust removal unit, it has a complicated shape and a large size. For this reason, the structure of the vacuum cleaner may be complicated and the size may be increased. Further, even in the configuration using the electric motor of the cleaner main body or the spring of the power cord take-up reel as the drive source, the configuration becomes complicated and may cause an increase in size.

  Further, since the filter has a function of filtering out dust contained in the sucked air, the dust adheres to the filter as the vacuum cleaner is used. In addition, sucked dust and dust accumulate in the dust collection chamber. Therefore, it is easily soiled by dust and dust. For this reason, the user of the vacuum cleaner may want to remove the filter or the dust collection chamber from the main body of the vacuum cleaner for cleaning when the degree of contamination of the filter or the dust collection chamber becomes high. Since the electric power source generally does not like water wetting, if the dust collection chamber is provided with a mechanism for compressing or removing dust or dust having the electric power source, it is difficult to wash the dust collection chamber.

  Therefore, it is desirable that an electric power source (that is, a member or mechanism that dislikes getting wet with water) is disposed in the vacuum cleaner main body, and a member or mechanism that does not cause a problem even when wet with water is disposed in the dust collection chamber. It is. However, in the above configuration, it is not easy to physically separate or combine the dust removing member of the filter and its power source.

JP 2004-2161010 A JP 2004-283344 A JP 2005-318915 A JP 2006-20897 A JP 2005-305014 A JP 2006-6609 A JP 2006-6610 A JP 2006-20829 A JP 2005-13256 A

  In view of the above situation, the problem to be solved by the present invention is to provide a connecting mechanism for a driving member and a driven member in a dust removing unit that is small, excellent in performance, and easy to attach or remove, or can be easily removed at any position. Providing a connecting mechanism capable of connecting the driven member and the driving member, in particular, the driving unit having a power source is physically separated from the driven unit that receives a driving force from the driving unit and performs a predetermined operation. It is to provide a coupling mechanism that can easily couple the driving force so that the driving force can be transmitted.

In order to solve the above problems, the present invention provides a drive having a rotational power source and an eccentric pin provided at a position eccentric from the rotational center of the rotational power source and rotated about the rotational center by the rotational power source. Connection between a side unit and a driven side unit having a driven member that receives power transmitted from the rotational power source from the eccentric pin that rotates about the rotation center. In the mechanism, the driven member is provided so as to be able to reciprocate in a predetermined direction, and extends linearly in a direction substantially orthogonal to the predetermined direction, and the first connection wall portion and it has a second connecting wall portion extending linearly lying parallel, the first connecting wall portion and a second connecting wall portion, as the driven member one end of said rotation center The distance between the opposing surfaces of the connecting wall portions in the moving direction of the driven member is substantially equal to the imaginary line extending in the moving direction, and the other ends thereof are positioned in opposite directions. When the pin is set at a distance allowing loose fitting, and the rotating eccentric pin presses the first connecting wall portion, the driven member moves to one side, while the rotating eccentric pin The gist is that the driven member moves to the other side when the second connecting wall portion is being pressed.

Here, it is preferable that either one of the one wall portion and the other wall portion is located on a rotation locus of the eccentric pin .

Further, the first connecting wall portion and the second connecting wall portion are provided so as to be point-symmetric with respect to a certain point as a center of symmetry, and the certain point is located on the central axis of the eccentric pin. The position of the eccentric pin in a state where the first connecting wall portion is positioned at 0 degree and the rotating eccentric pin is located between the 0 degree position and the 180 degree position. When the driven member moves to one side and the rotating eccentric pin is located between the 180 degree position and the 360 degree position, the second connecting wall portion is pressed against the eccentric pin. It is only necessary that the driven member moves to the other side. Moreover, the said driven unit should just be provided with the guide mechanism which reciprocates the said driven member to the said predetermined direction.

According to this invention, it has the drive side unit which has a drive source, and the driven side unit provided in this drive side unit so that connection and removal are possible. As described above, the driving side unit and the driven side unit can be connected and detached freely. For this reason, each of the driving side unit and the driven side unit can be made into a unit that can be separated and connected.

Moreover, according to the said structure, when a drive side unit and a driven side unit are connected, a 1st connection wall part or a 2nd connection wall part is pressed by rotation of an eccentric pin. Also, when separating the drive side unit and the driven side unit , since the eccentric pin and the first connection wall portion or the second connection wall portion are not physically coupled, immediately the drive side unit and the driven side unit Can be separated .

  Embodiments of the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is an external perspective view schematically showing a configuration of one unit 11 to which a coupling mechanism according to an embodiment of the present invention is applied and the other unit 12 driven by the one side unit 11. . Hereinafter, the unit 11 on the side including the power source may be referred to as a “driving side unit”, and the other unit 12 that receives power transmission from the driving side unit 11 may be referred to as a “driven unit”.

The drive side unit 11 includes a rotational power source 111 and a rotating arm 112 driven by the rotational power source 111. The rotating arm 112 is provided with an eccentric pin 1121 (hereinafter also referred to as a “connection pin”). The connecting pin 1121 is a convex portion provided at a position (ie, an eccentric position) L ₂ that is deviated from the rotation center L ₁ of the rotating arm 112. The shape is not particularly limited, but is preferably substantially columnar or cylindrical, and its axis is preferably substantially parallel to the axis of rotation of the rotating arm 112.

  Although FIG. 1 shows a configuration in which the rotary arm 112 is directly connected to the drive shaft 1111 of the rotational power source 111, the configuration is not necessarily required to be directly connected. For example, a gear train may be disposed between the rotational power source 111 and the rotating arm 112 so that the rotational speed and torque of the rotating arm 112 are adjusted.

The driven side unit 12 includes a driven member 121 and a guide member 122. The driven member 121 has two connecting wall portions 1211a and 1211b. The two connecting wall portions 1211a and 1211b are portions that protrude in a straight standing wall shape. These axes are set to be substantially parallel. These connecting wall portions 1211a and 1211b are provided alternately (obliquely) in the respective axial directions. Specifically, Nijo of the connecting wall portion 1211a, in case of assuming a line _{L 5} of the imaginary intersecting at right angles to the axis of 1211b, Nijo of the connecting wall portion of 1211a, the one end of each of the 1211b lines on the assumption substantially coincides with the L _5, the other end is located opposite to each other. In other words, Nijo of the connecting wall portion 1211a, 1211b, each connecting wall 1211a in the line _{L 5} on the assumption, as the center point P of the middle axis of 1211b, are provided so as to be point symmetry 180 ° .

The distance between the opposing surfaces of the two connecting wall portions 1211a and 1211b when the two connecting wall portions 1211a and 1211b are assumed to extend in the axial directions L ₃ and L ₄ is determined by the rotation arm 112. The connecting pin 1121 is set to a distance allowing loose fitting. In other words, if the connecting pin 1121 of the rotating arm 112 has a substantially circular cross section, the distance between the opposing surfaces of the two connecting wall portions 1211a and 1211b is the diameter of the connecting pin 1121 of the rotating arm 112. Is set to be approximately the same as or slightly larger than that.

Moreover, it is preferable that the cross-sectional shape of each connection wall part 1211a, 1211b has a surface substantially orthogonal to the surface of the driven member 121, such as a substantially inverted U shape, and the tip part is tapered. The lengths of the connecting walls 1211a and 1211b in the direction of the axis lines L ₃ and L ₄ are set to be substantially the same as or longer than the length from the rotation center L ₁ of the rotating arm 112 to the center L _{2 of the} connecting pin. The The cross-sectional width of each of the connecting wall portions 1211a and 1211b is set to a dimension having a strength capable of receiving a driving force from the connecting pin 1121. Therefore, it is set as appropriate according to the material of each of the connecting wall portions 1211a and 1211b, the driving force transmitted, the load applied to the driven member 121, and the like.

A guide groove 1212 is formed on the surface of the driven member 121 opposite to the surface on which the connecting wall portions 1211a and 1211b are formed. The guide groove 1212 is a linear groove that can be engaged with a guide rail 1222 provided in the guide member 122. The direction of the axis _{L 6} of the guide groove 1212, the connecting wall portion 1211a, is set to be substantially perpendicular to the direction of the axis _L 3, _{L 4} of 1211b. The driven member 121, along the direction of the axis _{L 6} of the guide groove 1212, the upper guide rail 1222 can reciprocate.

  Such a connecting structure of the rotating arm 112 and the driven member 121 and the mechanism of power transmission are as follows. 2A to 2D are plan views schematically showing the movement of the connecting pin 1121 of the rotating arm 112 and the connecting wall portions 1211a and 1211b of the driven member 121. FIG.

As shown in each of FIGS. 2A to 2D, in a state where the rotating arm 112 and the driven member 121 are connected, they are substantially perpendicular to the two connecting wall portions 1211a and 1211b of the driven member 121 and their end faces. on line L ₅ on assumptions on the position, the rotation center of the rotary arm 112 is located. In other words, the rotating arm 112 and the driven member 121, the rotation center of the rotary arm 112 is connected so as to be positioned on a line L ₅ on the assumption.

Then, as shown in FIG. 2 (a), from the position the center of the connection pin 1121 is located on the line L ₅ on the assumption of the rotating arm 112, the rotational arm 112 is rotated clockwise (the direction indicated by the arrow a) The connecting pin 1121 of the rotating arm 112 contacts and presses one of the two connecting wall portions 1211a and 1211b. As the rotary arm 112 rotates, the one of the two connecting wall portions 1211a and 1211b of the driven member 121 is pressed against the connecting pin 1121 of the rotating arm 112 as shown in FIG. As a result, the driven member 121 moves along the axial direction of the guide groove (not shown) and the guide rail 1222.

When the rotary arm 112 from the position shown in FIG. 2 (a) is rotated 180 °, as shown in FIG. 2 (c), the center position on the line _{L 5} on the assumption of the connection pin 1121 of the rotating arms 112 Reach. When this position is reached, the direction of movement of the connecting pin 1121 of the rotating arm 112 at this moment is perpendicular to the assumed line L ₅ (the axial direction of the guide rail 1222), so that the linear movement of the driven member 121. Stops.

  When the rotating arm 112 further rotates from this position, one of the connecting wall portions 1211a and 1211b of the driven member 121 is separated from the connecting pin 1121 of the rotating arm 112, and the connecting pin 1121 is connected to the connecting wall portion 1211a and 1211a of the driven member 121. The other 1211b of 1211b is pressed.

  As shown in FIG. 2C, the other 1211b of the connecting wall portions 1211a and 1211b of the driven member 121 is pressed by the connecting pin 1121 in the direction opposite to the direction in which the one 1211a is pressed by the connecting pin 1121. The driven member 121 moves linearly in the opposite direction. When the rotating arm 112 further rotates, the phase of the connecting arm 112 and the driven member 121 return to the positions shown in FIG.

  As described above, by repeating the states of FIGS. 2A to 2D, the driven member 121 reciprocates along the directions of the guide groove 1212 and the guide rail 1222. Therefore, the rotational power generated by the rotational power source 111 is transmitted to the driven member 121 as a linear reciprocating motion.

  The rotating arm 112 (or the connecting pin 1121) and the driven member 121 can transmit power from the rotating arm 112 to the driven member 121 as described above even when the connection and disconnection are repeated. The mechanism is as follows.

  From the state where the connecting pin 1121 of the rotating arm 112 is in contact with one of the connecting walls 1211a and 1211b of the driven member 121 or the other 1211b as shown in FIGS. When the connection with the driven member 121 is disconnected, the connection pin 1121 of the rotating arm 112 and the one 1211a or the other 1211b of the connection wall portions 1211a and 1211b of the driven member 121 are separated.

  When the rotating arm 112 and the driven member 121 are connected again in a state where the phase of the rotating arm 112 and the position of the driven member 121 are not changed, the connecting pin 1121 of the rotating arm 112 is connected to the connecting wall portions 1211a and 1211b of the driven member 121. It returns to the state which is in contact with one of the other 1211a or the other 1211b. For this reason, when the rotating arm 112 is rotated, the driven member 121 immediately starts linear movement.

  However, in a state where the rotating arm 112 and the driven member 121 are separated, the phase of the rotating arm 112 and the position of the driven member 121 may change. Even if the rotating arm 112 and the driven member 121 are connected again in this state, the connecting pin 1211 of the rotating arm 112 returns to the state where the connecting wall portions 1211a and 1211b of the driven member 121 are in contact with the one 1211a or the other 1211b. There may not be.

  3A and 3C show a state in which the phase of the rotating arm 112 and the positional relationship between the driven member 121 change in a state where the rotating arm 112 and the driven member 121 are separated, and then the rotating arm 112 and the driven member again. As a result, the connecting pin 1121 of the rotating arm 112 and the connecting wall portions 1211a and 1211b of the driven member 121 are not in contact with each other. Even if the rotating arm 112 is rotated from this state, since the connecting pin 1121 of the rotating arm 112 is not in contact with any of the connecting wall portions 1211a and 1211b of the driven member 121, the driven member 121 immediately starts linear movement. do not do.

  However, when the rotating arm 112 rotates from the state shown in FIG. 3A, the connecting pin 1121 of the rotating arm 112 is one of the connecting walls 1211a and 1211b of the driven member 121 as shown in FIG. 3B. 1211a. Similarly, when the rotating arm 112 rotates from the state shown in FIG. 3C, the connecting pin 1121 of the rotating arm 112 is connected to the connecting wall portions 1211a and 1211b of the driven member 121 as shown in FIG. 3D. It contacts the other 1211b.

  Then, after the connecting pin 1121 of the rotating arm 112 contacts one of the connecting walls 1211a and 1211b of the driven member 121 or the other 1211b, one of the connecting walls 1211a and 1211b 1211a or the other 1211b of the rotating arm 112 The connecting pin 1121 presses one of the connecting walls 1211a and 1211b of the driven member 121 or the other 1211b. Therefore, the driven member 121 starts linear movement.

  One of the connecting wall portions 1211a and 1211b of the driven member 121 and the other 1211b are alternately arranged. Therefore, when the connecting pin 1121 of the rotating arm 112 contacts the one 1211a or the other 1211b of the connecting wall part 1211a or 1211b of the driven member 121, the other 1211b or the other 1211a of the connecting wall parts 1211a or 1211b may become an obstacle. Absent.

  In other words, the connection pins 1121 of the rotating arm 112 are normally located at positions where the driven member 121 is driven by the rotation of the rotating arm 112 by alternately arranging one of the connecting walls 1211a and 1211b and the other 1211b. Can return to.

  When the rotating arm 112 and the driven member 121 are separated and then reconnected, the tip of the connecting pin 1121 of the rotating arm 112 is in contact with the tip of one of the connecting walls 1211a and 1211b of the driven member 121 or the other 1211b. You may touch. As described above, the connecting pin 1121 of the rotating arm 112 and one of the connecting walls 1211a and 1211b of the driven member 121 and the other 1211b are formed in a tapered shape.

  Therefore, when a force is applied to bring the rotating arm 112 and the driven member 121 closer, the rotating arm 112 is slightly rotated and / or the driven member 121 is moved, and the positional relationship is such that the mutual connection is not hindered. . As a result, the rotating arm 112 and the driven member 121 are normally connected.

  According to such a structure, even if connection and disconnection of the drive side unit 11 and the driven unit 12 are repeated, it is possible to always connect the drive side unit 11 to the driven side unit 12 so that power can be normally transmitted. it can.

  Next, a specific application example of the coupling mechanism according to the embodiment of the present invention will be described. Here, the structure applied to the filter dust removal unit of a vacuum cleaner is demonstrated to an example.

  FIG. 4 schematically shows a configuration of a vacuum cleaner 2 (hereinafter, may be abbreviated as “the present vacuum cleaner”) in which a filter dust removal unit including a coupling mechanism according to an embodiment of the present invention is incorporated. FIG.

  As shown in FIG. 4, the electric vacuum cleaner 2 includes a main body 21, a filter unit 22, and a dust box 23. The drive unit 11 according to the embodiment of the present invention is disposed on the main body 21, and the driven unit 12 (not visible in the figure) according to the embodiment of the present invention is disposed on the filter unit 22. The The main body 21 further includes a caster 211, a main body cover 212, a suction unit 213, a dust box accommodation space 214, a suction port 215, and other predetermined members and structures (not shown).

  The suction unit 213 includes a suction fan and an electric motor (not shown). The suction fan is disposed on the dust box housing space 214 side, and the electric motor is disposed on the opposite side. Then, the suction fan is activated by the rotation of the electric motor, and the air in the dust box housing space 214 is discharged to the outside of the main body of the vacuum cleaner. Thereby, the atmospheric pressure in the dust box accommodation space 214 becomes lower than the outside air, and dust, dust and the like can be sucked together with the outside air from the suction port 215 into the dust box 23 accommodated in the dust box accommodation space 214.

  The main body cover 212 is provided on the main body 21 of the vacuum cleaner 2 so as to be freely opened and closed. By opening the main body cover 212, the filter unit 22 and the dust box 23 can be accommodated in the dust box accommodation space 214 of the main body 21 and can be removed from the dust box accommodation space 214.

  The dust box 23 has a dust collection chamber and a bottom member. The bottom member is a member that becomes the bottom surface of the dust collecting chamber, and is provided in the dust box 23 so as to be freely opened and closed. By opening the bottom member, the dust and dust collected in the dust collecting chamber can be discarded to the outside.

  The dust collection chamber is a box-like member formed of a net-like member that allows gas to pass but does not allow dust or dust larger than a predetermined size to pass through. In the dust collection chamber, a through hole 233 communicating with the suction port 215 of the main body of the vacuum cleaner 2 is formed in a state where the dust box 23 is stored in the dust box storage space 214. Accordingly, the dust and dust sucked together with the outside air pass through the suction port 215 of the main body 21 and the through hole 233 of the dust collecting chamber and accumulate in the dust collecting chamber 232.

  The main body cover 212, the suction unit 213, the dust box accommodation space 214, and the suction port 215 of the vacuum cleaner 2 can have the same configuration as that of a conventional general vacuum cleaner. Therefore, detailed description is omitted.

  FIG. 5 is an exploded perspective view (including a partial cross-sectional view) schematically showing the configuration of the drive side unit 5 according to an application example of the present invention. FIG. 6 shows the configuration of the rotating arm.

  The drive side unit 5 according to the application example of the present invention includes a first casing part 51, a second casing part 52, a rotational power source 53, a third shaft support member 54, and a first gear 55. A second gear 56, a third gear 57, a fourth gear 58, a fifth gear 59, a sixth gear 60, a seventh gear 61, and an eighth gear 62. The rotating arm fixing member 63, the rotating arm 64, and the rotation detecting means 65 are provided.

  The first casing component 51 is a member having a bottom surface 511 having a predetermined shape, and provided with a side wall 512 extending substantially perpendicular to the peripheral edge of the bottom surface 511, one of which is a container-like opening. It is a member. Further, the first casing component 51 has a shallow bottom portion 5111 and a deep bottom portion 5112. The deep bottom portion 5112 of the bottom surface 51 includes a first shaft 513 and a second shaft 514. It is substantially parallel and is erected at a substantially right angle on the bottom surface. On the other hand, a bearing convex portion 515 of the sixth gear 60 is formed in the shallow portion 5111 of the bottom surface 511.

  The second casing part 52 is a member that serves as a lid for the opening of the first casing part 51. A through hole 521 for exposing the rotary arm fixing member 63 to the outside is formed at a predetermined location.

  And the casing of the drive side unit 5 which concerns on the application example of this invention is comprised by couple | bonding the 2nd casing component 52 with the said opening part of the 1st casing component 51. FIG.

  A general electric motor can be applied to the rotational power source 53. For example, in addition to a general DC motor, a stepping motor, an AC motor, or the like can be applied. A drive shaft 531 (see particularly a view in the direction of arrow a) projects from one end of the rotational power source 53, and the first gear 55 is attached to the drive shaft 531. A general cylindrical gear (for example, a spur gear) can be applied to the first gear 55.

  A wiring board 532 is attached to the other end side of the rotational drive source 53. On this wiring board 532, wiring (not shown) for supplying electric power to the rotation drive source 53 and rotation detection means 65 for detecting whether or not the rotation drive source 53 is rotating are mounted. A Hall IC or the like that detects a change in the magnetic field lines around the rotation detecting means can be applied. A connector 533 for connecting these and the outside is mounted.

  The second gear 56 is configured to rotate integrally with the third gear 57. For example, the second gear 56 and the third gear 57 are formed coaxially and integrally with a resin material or the like. A common shaft hole 571 is formed in the combined body of the second gear 56 and the third gear 57, and the first shaft 513 provided in the first casing component 51 is formed in the common shaft hole 571. Is inserted. Thus, the combined body of the second gear 56 and the third gear 57 is rotatably supported by the first casing component 51. The second gear 56 meshes with the first gear 55 and is driven according to the rotation of the first gear 55. The pitch circle diameter of the second gear 56 is set larger than the pitch circle diameter of the first gear 55.

  The third gear 57 is configured to rotate integrally with the second gear 56 as described above. Note that a general cylindrical gear can be applied to both the second gear 56 and the third gear 57. The pitch circle diameter of the third gear 57 is set smaller than the pitch circle diameter of the second gear 56.

  The fourth gear 58 meshes with the third gear 57. Moreover, it is comprised so that it may rotate integrally with the 5th gearwheel 59 mentioned later. Specifically, for example, the fourth gear 58 and the fifth gear 59 are formed coaxially and integrally with a resin material or the like.

  The fifth gear 59 is a gear that rotates coaxially and integrally with the fourth gear 58. A common shaft hole 591 is formed in the fourth gear 58 and the fifth gear 59. The second shaft 514 is inserted through the common shaft hole 591. As a result, the combined body of the fourth gear 58 and the fifth gear 59 is rotatably supported by the first casing component 51. The pitch circle diameter of the fourth gear 58 is set larger than the pitch circle diameter of the fifth gear 59.

  The third shaft fixing member 54 is a member that is fixed to the end surface and side surface of the rotational power source 53 on the side from which the drive shaft 531 projects by screws or the like. The third shaft fixing member 54 has a third power source 53 facing the direction opposite to the direction of projecting from the drive shaft 531 of the rotational power source 53 (that is, toward the side on which the wiring board 532 is mounted). The shaft 541 is fixed so as to protrude. Further, the third shaft fixing member 54 is provided with a space for accommodating the rotation detecting means 65.

  The sixth gear 60 meshes with the fifth gear 59. And it is comprised so that it may rotate coaxially and integrally with the seventh gear 61. For example, the sixth gear 60 and the seventh gear 61 are formed coaxially and integrally with a resin material or the like. A common shaft hole 611 is formed in the sixth gear 60 and the seventh gear 61. A general cylindrical gear can be applied to the sixth gear 60 and the seventh gear 61. The pitch circle diameter of the sixth gear 60 is set larger than the pitch circle diameter of the seventh gear 61.

  The third shaft 541 fixed to the third shaft fixing member 54 is inserted into the common shaft hole 611 of the combined body of the sixth gear 60 and the seventh gear 61. As a result, the combined body of the sixth gear 60 and the seventh gear 61 is rotatably supported by the third shaft fixing member 54. At this time, the sixth gear 60 is disposed on the proximal end side of the third shaft 541 and the seventh gear 61 is disposed on the distal end side of the third shaft 541.

  Then, the combined body of the rotational power source 53, the wiring board 532, and the third fixed member 54 such as the shaft is inserted into the deep portion 5112 of the bottom surface 511 of the first casing component 51. As a result, the sixth gear 60 meshes with the fifth gear 59.

  The eighth gear 62 meshes with the seventh gear 61. A general cylindrical gear can be applied to the eighth gear 62. At one end in the axial direction, there is formed a bearing recess that is coaxial with the pitch circle diameter and perpendicular to the axial direction and has a substantially circular bearing recess (not visible in the figure. For convenience of explanation, the reference numeral “621” is attached). Is done. In other words, the eighth gear 62 is formed in a substantially cylindrical container shape with a bottom. In addition, the rotary arm fixing member 63 is coupled to the opposite end face so as to rotate coaxially with the pitch circle of the eighth gear 62. Specifically, for example, the eighth gear 62 and the rotating arm fixing member 63 are formed coaxially and integrally with a resin material or the like.

  The rotating arm fixing member 63 is a cylindrical member having a diameter smaller than the outer diameter of the eighth gear 62, and is formed with a fitting recess 631 for fitting a rotating arm 64 described later. The fitting recess 631 is, for example, a recess having a substantially uniform cross-sectional shape along the axis of the cylinder.

  A rotation notification member 66 is provided between the eighth gear 62 and the rotating arm fixing member 63 to cause the rotation detecting means 65 to detect whether or not the rotating arm fixing member 63 is rotating. Specifically, a small piece (for example, a permanent magnet or a magnetized iron piece) that emits a magnetic field line at one or a plurality of locations on the outer periphery between the eighth gear 62 and the rotating arm fixing member 63 is used as the rotation notification member 66. It is arranged to be embedded.

  And the bearing recessed part 621 formed in the 8th gearwheel 62 is engaged with the bearing convex part 515 formed in the shallow part 5111 of the bottom of the bottom face 511 of the 1st casing component 51. FIG. Thereby, the eighth gear 62 and the rotating arm fixing member 63 are rotatably supported by the first casing component 51.

  Furthermore, a second casing part 52 is coupled to the first casing part 51. Here, the end face of the rotary arm fixing member 63 is exposed from the through hole 521 formed in the second casing part 52 in order to expose the rotary arm fixing material 63 to the outside.

  According to such a configuration, the rotational power generated by the rotational power source 53 can be output to the outside via the rotary arm fixing member 63. The rotational power can be output to the side of the rotational power source 53 opposite to the side from which the drive shaft 531 projects.

  The pitch circle diameter of the second gear 56 is larger than the pitch circle diameter of the first gear 55, the pitch circle diameter of the fourth gear 58 is larger than the pitch circle diameter of the third gear 57, and the sixth gear. The pitch circle diameter of 60 is larger than the pitch circle diameter of the fifth gear 59, and the pitch circle diameter of the eighth gear 62 is larger than the pitch circle diameter of the seventh gear 61. Therefore, the rotational power generated by the rotational power source is decelerated and the rotational moment is increased and transmitted to the rotating arm fixing member.

  The rotation detecting means 65 is disposed on the outer periphery in the vicinity of the boundary between the eighth gear 62 and the rotating arm fixing member 63. Therefore, while the combined body of the eighth gear 62 and the rotating arm fixing member 63 makes one rotation, the rotation notification member 66 provided in the combined body of the eighth gear 62 and the rotating arm fixing member 63 is provided with the rotation detecting means 65. Passes through the immediate vicinity. Therefore, when the combined body of the eighth gear 62 and the rotating arm fixing member 63 is rotating, the rotation detecting means 65 generates a magnetic force line generated by the rotation notifying means 66 every time the rotation notifying means 66 passes through the nearest position. Can be detected.

  Therefore, when the rotation detecting means 65 periodically (or intermittently) detects the lines of magnetic force, the combined body of the eighth gear 62 and the rotating arm fixing member 63 is rotating, that is, driving the rotational power source 53. It can be detected that the shaft 531 is rotating. On the other hand, the drive shaft 531 of the rotational power source 53 may not rotate due to an overload or the like despite being controlled to rotate the rotational power source. In this case, the rotation detecting means 65 does not detect the magnetic field lines regularly (or intermittently) (in other words, the detected magnetic field lines do not change). Therefore, in such a case, it can be determined that the drive shaft 531 of the rotational power source 53 is not rotating.

  And the drive side unit 5 concerning this application example is embedded in the surface facing the filter unit 22, and the rotating arm fixing member 63 is exposed to the dust box accommodation space 214 of this electric vacuum cleaner 2. Arranged.

  FIG. 6 is an external perspective view schematically showing the configuration of the rotating arm 64, where (a) is a view seen from the side of the fitting protrusion 641, and (b) is the side of the connecting pin (eccentric pin) 642. It is the figure seen from.

  As shown in FIG. 6, the rotating arm 64 is an elongated flat plate-like or bar-like member. As shown in FIG. 6A, a fitting protrusion 641 that can be fitted into the fitting recess 631 of the rotary arm fixing member 63 is provided in the vicinity of one end of the one surface. The dimension shape of the cross section perpendicular to the axial direction of the fitting protrusion 641 is set to be approximately equal to the dimension shape of the cross section of the fitting recess 631 of the rotary arm fixing member 63. Therefore, when the rotating arm fixing member 63 rotates with the fitting protrusion 641 of the rotating arm 64 fitted in the fitting recess 631 of the rotating arm fixing member 63, the rotating arm 64 is integrated with the rotating arm fixing member 63. Rotate.

  On the other hand, on the surface on the opposite side to the end opposite to the side on which the fitting protrusion 641 is formed, as shown in FIG. 6B, a connection pin 642 that is connected to a dust drop member 73 described later is formed. . The cross-sectional shape of the connecting pin 642 in the axial direction is set to be substantially circular. In addition, in FIG. 6, although the structure formed in the substantially column shape which has a uniform diameter over a full length is shown, the base end part vicinity is formed in the cylindrical or column shape with a substantially uniform diameter, and the front-end | tip part is It is preferably formed in a tapered shape such as a conical shape or a semicircular shape.

  The specific value of the diameter near the base end will be described later. Further, the axis of the fitting protrusion 641 and the axis of the connecting pin 642 are set to be substantially parallel. The distance between the axis of the fitting protrusion 641 and the axis of the connecting pin 642 will also be described later.

  According to such a configuration, the fitting protrusion 641 of the rotating arm 64 is fitted into the fitting recess 631 of the rotating arm fixing member 63, and the rotational power source 53 generates rotational power in this state (that is, the drive shaft 531). When the rotation arm 64 rotates, the rotation arm 64 rotates concentrically with the rotation center of the rotation arm fixing member 63. As a result, the movement locus of the connecting pin 642 of the rotating arm 64 is a circle whose center is the rotation center of the rotating arm fixing member 63 and whose radius is the distance between the axis of the fitting protrusion 641 and the axis of the connecting pin 642. It becomes a trajectory.

  Next, a filter unit according to an application example of the present invention (the filter unit according to the application example of the present invention may be referred to as “the present filter unit”) will be described. FIG. 7 is a perspective view schematically showing the configuration of the filter unit 7.

  The filter unit 7 includes a frame 71, a filter main body 72, and a dust drop member 73 corresponding to the driven member 121 of the driven unit 12. And it is comprised so that it can attach to a dust box detachably. The frame 71 and the filter main body 72 correspond to the guide member 122 of the driven unit 12 according to the embodiment of the present invention, and the dust drop member 73 corresponds to the driven member 121.

  The frame body 71 includes a first frame part 711 and a second frame part 712. Then, the first frame part 711 and the second frame part 712 are combined with the filter main body 72 sandwiched between the first frame part 711 and the second frame part 712. . Thereby, the filter main body 72 is fixed to the frame 71.

  A guide groove 713 is formed in either the first frame part 711 or the second frame part 712. The guide groove 713 corresponds to the guide rail 1222 of the guide member 122 of the driven unit 12 according to the embodiment of the present invention. The guide groove 713 is a groove formed in parallel to the surface direction when the filter main body 72 is regarded as a planar member. In other words, it is formed on a predetermined side of the first frame part 711 or the second frame part 712 along the axial direction on the inner surface side of the predetermined side.

  The filter main body 72 is made of a cloth-like or plate-like material, such as a non-woven fabric, which can pass air but cannot pass an object having a size larger than a predetermined size. Then, as shown in the figure, it is formed in a zigzag shape (in other words, a wave shape). That is, a single cloth or plate-like object has a configuration in which substantially straight peaks and valleys are alternately formed in parallel by repeating mountain folding and valley folding.

  The tip of the mountain fold and the tip of the valley fold, and the peripheral edge of the filter body 72 are formed of, for example, a synthetic resin material. Therefore, the filter main body 72 maintains a zigzag shape (in other words, a wave shape). Since the filter body 72 has flexibility, the filter body 72 is configured to be deformable. Therefore, the filter body 72 is deformed by engaging the dust drop member 73 with the filter body 72, and then the engagement of the dust drop member 73 with the filter body 72 is released. The collected dust is shaken off by the vibration when returning to.

  And the guide rail 721 which protrudes higher than the front-end | tip of a peak is provided so that it may extend in a substantially right angle direction with respect to the extending direction of these peaks and valleys. The guide rail 721 is formed so as to be substantially parallel to the guide groove 713 formed in the first frame part or the second frame part. The guide rail 721 and the guide groove 713 are members that serve as a guide for the movement of the dust drop member 73. And it is the member or site | part corresponded to the guide rail 1222 of the driven side unit 12 concerning embodiment of this invention.

  A dust removing member 73 is attached to the filter unit 7. FIG. 8 is an external perspective view schematically showing the configuration of the dust drop member 73. FIG. 8A is a view as seen from the side facing the filter main body 72, and FIG. FIG.

  As shown in FIG. 8A, the dust drop member 73 is formed with a substantially linear guide groove 731 over the entire length thereof. A guide rail 721 formed in the filter main body 72 can be loosely fitted in the guide groove 731. Further, when the filter main body 72 is regarded as a single surface, the guide protrusion 732 is formed so as to protrude in the surface direction in a direction substantially perpendicular to the extending direction of the guide groove 731. The guide protrusion 732 can be loosely fitted in a guide groove 713 formed in the first frame part 711 and the second frame part 712.

  Further, a dust scraping protrusion 733 is formed on the surface of the dust dropping member 73 on the side where the guide groove 731 is formed. FIG. 7A shows a configuration in which three dust scraping protrusions 733 are formed, but the number is not limited. Further, the height of the dust scraping protrusion 733 is such that the guide rail 721 of the filter main body 72 is loosely fitted in the guide groove 731 of the dust removing member 73, and the guide protrusion 732 of the dust removing member 73 is the guide groove of the frame body 71. In the state of being loosely fitted to 713, the tip ends thereof are set to a height that reaches a position that enters the valley rather than the tip end of the ridge formed in the filter main body 72.

  The guide protrusion 732 of the dust drop member 73 is loosely fitted in the guide groove 713 formed in the first frame part 711 and the second frame part 712, and the guide groove 731 of the dust drop member 73 is formed in the filter body 72. The guide rail 721 is loosely fitted. According to such a configuration, the dust drop member 73 is formed on the guide rail 721 of the filter body 72 and the guide groove 713 of the first frame part 711 or the second frame part 712 on the surface of the filter body 72. It can reciprocate along.

  When the dust drop member 73 moves from one end to the other end of the reciprocating range, the three dust scraping protrusions 733 collide with the tips of all the mountain-folded portions of the filter body 72 and move. In this embodiment, the center projection 733 of the three projections 733 is formed at the approximate center of the projections 733 at both ends, and the distance between the projection 733 at the center and the projections 733 at both ends is set as dust drop. It is formed substantially equal to the moving distance of the member 73. Therefore, when the dust drop member 73 moves from one end to the other end of the range in which the dust drop member 73 can reciprocate, the tip of the mountain fold portion where the dust scraping protrusion 733 does not collide does not exist. In other words, when the dust drop member 73 moves from one end to the other end of the range in which the dust drop member 73 can reciprocate, one of the dust scraping projections 733 always collides with the tip of all the mountain folded portions.

  More specifically, in order to cause the protrusion 733 to collide with the tips of all the mountain-folded portions, if the dust scraping protrusion 733 is formed at both ends of the dust dropping member 73 in the reciprocating direction, the dust dropping member 73 is reciprocated. The possible range (length) is set to be larger than the length of the dust drop member 73 in the reciprocating direction. In addition, as shown in FIG. 8A, if the dust drop member 733 is formed at both ends and substantially the center of the dust drop member 73 in the reciprocating direction, the range (length) in which the dust drop member 73 can reciprocate. ) Is longer than the distance between the dust scraping protrusion 733 formed on either end of the dust drop member 73 in the reciprocating direction and the dust scraping protrusion 733 formed substantially at the center. What is necessary is just to set a dimension.

  In such a configuration, when the dust drop member 73 reciprocates along the guide rail 721 and the guide groove 713, the dust scraping projection 733 provided on the dust drop member 73 is formed at all the tips of the mountain folded portions of the filter body 72. collide. Due to the impact of the collision, dust attached to the filter main body 72 is detached from the filter main body 72 and falls. As a result, the dust adhering to the filter main body 72 disappears, and the filter main body 72 recovers its function.

  On the other hand, as shown in FIG. 8B, in the state where the filter unit 22 is housed in the dust box housing space, the surface of the dust removing member opposite to the surface facing the filter body 72 (ie, the filter unit 22 is housed in the dust box housing space). Two connecting wall portions 734a and 734b are formed on the surface facing the drive side unit 7 according to the application example. The two connecting wall portions 734a and 734b are portions corresponding to the connecting wall portions 1211a and 1211b of the driven member 121 of the driven unit 12 according to the embodiment of the present invention.

  That is, two connecting wall portions 734a and 734b are formed on the surface of the dust dropping member 73 on the side facing the driving side unit 7 according to the application example of the present invention. These two connecting wall portions 734a and 734b are portions projecting in a straight standing wall shape. These axes are set to be substantially parallel. The axial direction of these two connecting wall portions 734a and 734b is set in a direction substantially orthogonal to the guide groove 731 formed on the opposite surface.

These two connecting wall portions 734a and 734b are provided alternately (obliquely) in the respective axial directions. Specifically, the connecting wall portion 734a of the rotational center of the street Nijo rotary arm 64, in a state in which assuming the line M ₅ imaginary intersecting at right angles to the axis of 734b, Nijo of the connecting wall portion 734a, each of 734b One end substantially coincides with this assumed line and the other ends are in opposite directions. In other words, the two connecting wall portions 734a and 734b are point-symmetric with respect to 180 ° with respect to an intermediate point between the axes M ₃ and M ₄ of the connecting wall portions 734a and 734b in the assumed line M ₅ . It is provided as follows.

Note that the distance between the opposing surfaces of the two connecting wall portions 734a and 734b when the two connecting wall portions 734a and 734b are extended in the directions of the respective axes M ₃ and M ₄ is a rotation. The distance is set such that the connecting pin 642 formed on the arm 64 can be loosely fitted. In other words, if the connecting pin 642 formed on the rotating arm 64 is formed in a substantially circular shape, the distance between the opposing surfaces of the two connecting wall portions 734a and 734b is the connecting pin 642 of the rotating arm 64. It is set to be approximately the same as or slightly larger than the diameter.

  Moreover, it is preferable that the cross-sectional shape of each connection wall part 734a, 734b has a surface substantially orthogonal to the surface direction of the filter main body 72, and a front-end | tip part is formed in a taper shape. For example, a cross-sectional shape such as a substantially inverted U shape can be applied.

Each connecting wall 734a, the axis M ₃ of _734b, M ₄ direction length is either the dust dumping member reciprocates is possible range of 73 (length) of the half-length and substantially the same, set it longer The When viewed from the rotating arm 64 side, the distance from the center of the fitting protrusion 641 of the rotating arm 64 (that is, the rotating center of the rotating arm 64) to the center of the connecting pin 642 of the rotating arm 64 (movement of the connecting pin 642 of the rotating arm 64). The radius of the circle serving as the locus is set to be substantially the same as the half of the range (length) in which the dust drop member 73 can reciprocate. Therefore, it is possible to press the connecting wall portions 734a and 734b against the connecting pin 642 without detaching from the outer ends of the connecting wall portions 734a and 734b.

  The cross-sectional widths of the connecting wall portions 734a and 734b are set to dimensions having a strength capable of receiving a driving force. Accordingly, the material of the connecting wall portions 734a and 734b, the driving force transmitted, the load applied to the dust drop member 73 (when the dust scraping projection 733 collides with the tip of the mountain folded portion of the filter body 72, the dust drop member It is set as appropriate according to the impact on 73).

  The connection structure between the rotating arm 64 and the dust drop member 73 and the power transmission mechanism in the electric vacuum cleaner 2 are as follows. FIG. 9 is a plan view schematically showing the movement of the connecting pin 642 of the rotating arm 64 and the dust drop member 73.

As shown in FIGS. 9A to 9D, in a state where the rotary arm 64 and the dust drop member 73 are connected, they are substantially perpendicular to the two connecting walls 734a and 734b of the dust drop member 73, on line M ₅ on assumptions on the end face position, center of rotation of the arm 64 is positioned. In other words, the rotating arm 64 and the dust dumping member 73, the rotation center of the rotation arm 64 is connected so as to be positioned on a line M ₅ on the assumption.

Then, as shown in FIG. 9 (a), if the center of the connecting pin 642 of the rotating arm 64 is rotated from the position located on the line M ₅ on the assumption clockwise (the direction indicated by the arrow a), the rotating arm 64 The connecting pin contacts and presses one of the two connecting wall portions 734a and 734b. As the rotary arm 64 rotates, the one side 734a of the two connecting walls 734a and 734b of the dust drop member 73 is pressed by the connecting pin 641 of the rotary arm 64 as shown in FIG. . As a result, the dust drop member 73 moves in the axial direction of the guide rail 721 of the filter body 73.

  As the dust removing member 73 moves, the dust scraping projection 733 successively collides with the tip of the mountain fold portion of the filter main body 72. Dust and dust adhering to the filter main body 72 are detached from the filter main body 72 and dropped due to an impact when the dust scraping projection 733 collides.

When the rotation arm 64 from the position shown in FIG. 9 (a) is rotated 180 °, as shown in FIG. 9 (c), the center of the connecting pin 642 of the rotating arm 64 reaches the position on the line M ₅ on the assumption . When this position is reached, the direction of movement of the connecting pin 642 of the rotating arm 64 at this moment is perpendicular to the assumed line M ₅ (that is, the axial direction of the guide rail 721 provided in the filter body 72). Therefore, the linear movement of the dust drop member 73 stops instantaneously.

  When the rotating arm 64 further rotates from this position, one of the connecting walls 734a and 734b of the dust drop member 73 and the connecting pin 642 of the rotating arm 64 are separated. Then, the connecting pin 642 of the rotating arm 64 is pressed against the other of the connecting wall portions 734a and 734b of the dust drop member 73 this time. 9C, the other 734b of the connection wall portions 734a and 734b of the dust drop member 73 is pressed in the opposite direction to the one 734a by the connection pin 642, and the dust drop member is in the opposite direction. Move linearly.

  Even when the dust drop member 73 moves in the opposite direction, the dust scraping projection 733 successively collides with the tip of the mountain fold portion of the filter body 72 one after another. Dust and dust adhering to the filter main body 72 are detached from the filter main body 72 and dropped due to an impact when the dust scraping projection 733 collides.

  When the rotating arm further rotates, the position returns to the position shown in FIG.

  As described above, by repeating the operation states of FIGS. 9A to 9D, the dust drop member 73 reciprocates along the direction of the guide rail 721 of the filter body 72. In this way, the rotational power generated by the rotational power source 53 is transmitted to the dust drop member 73 in a linear reciprocating motion. When the dust drop member 73 repeats linear reciprocation, the dust scraping protrusion 733 provided on the dust drop member 73 collides with the tip of the mountain fold portion of the filter body one after another. Due to this impact, dust and dust are detached from the filter main body 72 and dropped. As a result, the filter unit 22 recovers its function, and the suction force of the electric vacuum cleaner 2 is recovered.

  Note that the user of the vacuum cleaner 2 may remove the dust box 23 from the main body 21 of the vacuum cleaner 2 in order to remove dust or dust accumulated in the dust box 23 or to clean the dust box 23. Since the filter unit 22 is normally attached to the dust box 23, when the dust box 23 is removed from the main body 21 of the vacuum cleaner 2, the filter unit 22 is also removed, and the rotating arm 64 and the dust drop member 73 are connected. Is released.

  However, the rotary arm 64 and the dust drop member 73 can transmit power from the rotary arm 64 to the dust drop member 73 as described above even if the connection and disconnection are repeated. The mechanism is as follows.

  As shown in FIGS. 9A to 9D, from the state where the connecting pin 642 of the rotating arm 64 is in contact with one of the connecting walls 734 a and 734 b of the dust drop member 73 734 a or the other 734 b, the rotating arm 64 can be used. When the connection between the dust drop member 73 and the dust drop member 73 is disconnected, the connection pin 642 of the rotating arm 64 and the one of the connection wall portions 734a and 734b of the dust drop member 73 734a or the other 734b are separated.

  When the dust box 23 to which the filter unit 22 is mounted is stored again in the dust box storage space 214 in a state in which the phase of the connection arm 64 and the position of the dust drop member 73 do not change, the connection pin 642 of the rotary arm 64 becomes the dust drop member. It returns to the state which is in contact with one side 734a or the other side 734b of 73 connecting wall parts 734a and 734b. For this reason, when the rotating arm 64 is rotated, the dust dropping member 73 immediately starts linear movement.

  However, in a state where the filter unit 22 is detached from the electric vacuum cleaner 2, the phase of the rotary arm 64 and the position of the dust drop member 73 may change. In this state, even if the dust box 23 to which the filter unit 22 is attached is accommodated in the dust box accommodating space 214, the connecting pin 642 of the rotating arm 64 is connected to one of the connecting walls 734a and 734b of the dust dropping member 73 on the one 734a or the other 734b. It may not return to the contact state.

  FIG. 10 is a schematic plan view showing an operation in which the connecting pin 1121 and one of the two connecting wall portions 734a and 734b return to a normal positional relationship in the driving side unit 11 and the filter unit 22 according to the application example of the present invention. FIG. 10 (a) and 10 (c), the filter unit 22 is removed from the electric vacuum cleaner 2, and the phase of the rotating arm 64 and the position of the dust drop member 73 are changed in that state, and the phase and position are further changed. In this state, the dust box 23 to which the filter unit 22 is mounted is stored in the dust box storage space 214. Even if the rotating arm 64 rotates from this state, the connecting pin 642 of the rotating arm 64 is not in contact with any of the connecting wall portions 734a and 734b of the dust dropping member 73. Does not start.

  However, when the rotating arm 64 rotates from the state shown in FIG. 10A, the connecting pin 642 of the rotating arm 64 is connected to the connecting walls 734a and 734b of the dust drop member 73 as shown in FIG. 10B. Abuts on one side. Similarly, when the rotating arm rotates from the state shown in FIG. 10C, the connecting pin 642 of the rotating arm 64 is connected to the connecting walls 734a and 734b of the dust drop member 73 as shown in FIG. 10D. It contacts the other 734b.

  After the connecting pin 642 of the rotating arm 64 comes into contact with one of the connecting walls 734 a and 734 b of the dust dropping member 73 734 a or the other 734 b, the connecting pin 642 of the rotating arm 64 is connected to the connecting wall of the dust dropping member 73. One 734a or the other 734b of the portions 734a and 734b is pressed.

  As described above, one side 734a and the other side 734b of the connecting wall portions 734a and 734b of the dust drop member 73 are alternately arranged. Therefore, when the connecting pin 642 of the rotating arm 64 comes into contact with one of the connecting walls 734a and 734b of the dust drop member 73 or the other 734b, the other 734b or one of the connecting walls 734a and 734b becomes an obstacle. There is no.

  In other words, one of the connecting walls 734a and 734b and the other 734b are alternately arranged, so that the connecting pin 642 of the rotating arm 64 is normally in a position where the dust drop member 73 can reciprocate. Can return.

  When the dust box 23 to which the filter unit 22 is mounted is housed in the dust box housing space 214, the tip of the connecting pin 642 of the rotating arm 64 is connected to one side 734a or the other side 734b of the connecting wall portions 734a and 734b of the dust drop member 73. May abut against the tip of

  However, the connecting pin 642 of the rotating arm 64 and one of the connecting walls 734a and 734b of the dust dropping member 73 and the other 734b are formed in a tapered shape. Therefore, when a force that causes the rotating arm 64 and the dust drop member 73 to approach each other is applied, the rotary arm 64 is slightly rotated and / or the dust drop member 73 is slightly moved so that the mutual connection is not hindered. It becomes a relationship. As a result, the drive member and the dust drop member are normally connected.

  According to such a configuration, even when the filter unit 22 and the dust box 23 are repeatedly removed and stored from the electric vacuum cleaner 2, the rotating arm 64 is always connected to the dust dropping member 73 so that power can be normally transmitted. Can do.

(Effect of this embodiment)
As described above, according to the coupling mechanism according to the embodiment of the present invention, having a driven-side unit provided to be freely connected and disconnected the drive-side unit of the drive-side unit Toko having a drive source. As described above, the driving side unit and the driven side unit can be connected and detached freely. For this reason, each of the driving side unit and the driven side unit can be made into a unit that can be separated and connected.

Moreover, according to such a structure, when a drive side unit and a driven side unit are connected, a 1st connection wall part or a 2nd connection wall part is pressed by rotation of an eccentric pin. Also, when separating the drive side unit and the driven side unit , since the eccentric pin and the first connection wall portion or the second connection wall portion are not physically coupled, immediately the drive side unit and the driven side unit Can be separated .

  Further, at least one of the one connecting wall portion and the other connecting wall portion provided on the driven member is located on the rotation locus of the eccentric pin (connecting pin). Therefore, one connecting wall part and the other connecting wall part can be pressed by the eccentric pin. Further, while the eccentric pin presses one of the connecting wall portions or the other connecting wall portion in a predetermined direction, the engagement between the eccentric pin and one or the other of the connecting wall portions is not released. For this reason, one connection wall part and the other connection wall part can be moved only a predetermined distance in the predetermined direction, respectively.

  In addition, at both ends of the range in which the driven member reciprocates, one or the other of the connecting wall portions is located at a position deviating from the rotation locus of the eccentric pin. Therefore, even if the eccentric pin and the driven member are connected in a state where one or the other of the eccentric wall and the connecting wall portion is not in contact with each other, it is possible to re-engage with the other or one of the eccentric pins at one of the both ends. it can. For this reason, the eccentric pin and the driven member can always be normally connected regardless of the phase of the eccentric pin and the position of the driven member.

  Although the embodiments and application examples of the present invention have been described in detail above, the present invention is not limited to the embodiments or application examples, and various modifications can be made without departing from the spirit of the present invention. is there.

  For example, although the structure using a rod-shaped rotary arm as a driving member that transmits power to the driven member (dust removing member) is shown, the shape of the driving member is not limited. For example, it may be formed in a disk shape. When formed in a disk shape, the driving force transmission member of the drive unit can be covered, so that foreign matter and dust can be prevented from entering the drive unit.

It is the external appearance perspective view which showed typically the structure of the drive side unit provided with the connection mechanism concerning embodiment of this invention, and a driven side unit. It is the top view which showed typically operation | movement of the connection mechanism concerning embodiment of this invention, (a) And (b) is the state which the connection pin contact | abuts and presses one of the two connection wall parts. (C) and (d) show a state in which the connecting pin is pressed against the other of the two connecting wall portions. In the connection mechanism concerning embodiment of this invention, it is the plane schematic diagram which showed the operation | movement which a connection pin and either one of two connection wall parts return to a normal positional relationship, (a), (c) is a connection pin Shows a state that is not in contact with any of the two connecting wall portions, and (b) shows a state of returning from the state shown in (a) to the state in which it is in contact with one of the two connecting wall portions, d) shows the state which returned from the state shown in (c) to the state which contact | abutted the other of the two connection wall parts. It is the external appearance perspective view which showed typically the structure of the vacuum cleaner to which the connection mechanism concerning embodiment of this invention is applied, and A arrow view of a filter unit. It is the disassembled perspective view (a partial cross section figure is included partially) and B arrow view which showed typically the structure of the drive side unit which concerns on the application example of this invention. It is the external appearance perspective view which showed typically the structure of the rotating arm of the connection mechanism which concerns on the application example of this invention, (a) is the figure seen from the drive side unit side, (b) is seen from the filter unit side. It is a figure. It is the external appearance perspective view which showed the structure of the filter unit of this vacuum cleaner typically, and the figure seen from the drive side unit side. It is the external appearance perspective view which showed the structure of the dust drop member typically, (a) is the figure seen from the side connected with a drive side unit, (b) is the figure seen from the side with which a filter unit is mounted | worn. . It is the plane schematic diagram which showed the operation | movement of the drive side unit which concerns on the application example of this invention, and the filter unit, (a) And (b) is a connection pin abutting against one of the two connection wall parts, and pressing. (C) And (d) shows the state which the connection pin is contacting and pressing the other of the two connection wall parts. In the drive side unit and filter unit which concern on the example of application of this invention, it is the plane schematic diagram which showed the operation | movement which a connection pin and either of the two connection wall parts return to a normal positional relationship, (a), (c) Shows a state in which the connecting pin is not in contact with any of the two connecting wall portions, and (b) shows a state in which the connecting pin is returned from the state shown in (a) to the state in which it is in contact with one of the two connecting wall portions. (D) shows the state which returned from the state shown in (c) to the state which contact | abutted the other of the two connection wall parts.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Drive side unit to which the connection mechanism concerning embodiment of this invention is applied 111 Rotation power source of drive side unit 1111 Drive shaft of rotative power source 112 Rotation arm of drive side unit 1121 Eccentric pin of rotator arm
12 A driven-side unit to which the connecting mechanism according to the embodiment of the present invention is applied 121 A driven member 1211a One connecting wall portion of the driven member 1211b The other connecting wall portion of the driven member 1212 A guide groove of the driven member 122 Guides the driven member Guide member 1221 Base portion of guide member 1222 Guide rail provided on guide member 2 Vacuum cleaner to which connecting mechanism according to an embodiment of the present invention is applied 21 Main body of vacuum cleaner 211 Caster of vacuum cleaner 212 Main body of vacuum cleaner Cover 213 Vacuum cleaner suction unit 214 Vacuum cleaner dust box storage space 215 Vacuum cleaner suction port 22 Vacuum cleaner filter unit 23 Vacuum cleaner dust box 5 Driving side unit 51 according to the application example of the present invention Driving side Unit first casing part 51 Bottom surface of first casing component of driving side unit 5111 Shallow portion of bottom of bottom surface 5112 Deep portion of bottom of bottom surface 512 Side wall of first casing component of driving side unit 513 First shaft 514 Second shaft 515 Bearing convexity Part 52 Second casing part of driving side unit 521 Through hole formed in second casing part 53 Rotational power source of driving side unit 531 Driving shaft of rotating power source 532 Wiring board of rotating power source 533 Mounted on wiring board Connector 54 third shaft support member 541 third shaft 55 first gear 56 second gear 57 third gear 571 common shaft hole of the second gear and the third gear 58 fourth Gear 59 Fifth gear 591 Common shaft hole of fourth gear and fifth gear 60 Sixth gear 61 Seventh gear 611 Common of sixth gear and seventh gear Shaft hole 62 Eighth gear 621 Eighth gear bearing recess 63 Rotating arm fixing member 631 Rotating arm fixing member fitting recess 64 Rotating arm 641 Fitting protrusion 642 Connection pin 65 Rotation detection means 66 Rotation notification member 7 Application example A driven-side unit 71 A frame body of a driven-side unit 711 A first frame body component of a frame body of a driven-side unit 712 A second frame body component of a frame body of the driven-side unit 713 A guide groove of the frame body of the driven-side unit 72 Filter body 721 Guide rail formed on filter body 73 Dust drop member 731 Guide groove formed on dust drop member 732 Guide protrusion formed on dust drop member 733 Dust scraping protrusion formed on dust drop member 734 Dust Connecting wall formed on drop member

Claims (4)

A drive-side unit having a rotational power source, and an eccentric pin provided at a position eccentric from the rotational center of the rotational power source and rotated about the rotational center by the rotational power source;
In this drive-side unit is a detachable unit, and in a coupling mechanism with a driven-side unit having a driven member that receives transmission of power from the rotational power source from the eccentric pin that rotates around the rotation center,
The driven member is provided so as to be capable of reciprocating in a predetermined direction, and extends in a straight line in a direction substantially orthogonal to the predetermined direction, and in parallel with the first connection wall portion. A second connecting wall portion extending linearly located ;
One end of the first connecting wall portion and the second connecting wall portion substantially coincides with an imaginary line passing through the center of rotation and extending in the moving direction of the driven member, and the other end is positioned opposite to each other. And the distance between the opposing surfaces of both connecting wall portions in the moving direction of the driven member is set to a distance at which the eccentric pin can be loosely fitted,
When the rotationally moving eccentric pin presses the first connecting wall portion, the driven member moves to one side, while the rotating eccentric pin presses the second connecting wall portion. And a driven mechanism in which the driven member moves to the other side.   2. The connection mechanism according to claim 1, wherein one of the first connection wall portion and the second connection wall portion is located on a rotation locus of the eccentric pin. The first connection wall portion and the second connection wall portion are provided so as to be point symmetric with respect to a certain point as a center of symmetry,
The position of the eccentric pin in a state where the certain point is located on the central axis of the eccentric pin is set to a 0 degree position, and the eccentric pin that rotates is positioned between the 0 degree position and the 180 degree position. When the first connecting wall portion is pressed against the eccentric pin, the driven member moves to one side, and the rotating eccentric pin is located between the 180 degree position and the 360 degree position. 3. The coupling mechanism according to claim 1, wherein the second coupling wall portion is sometimes pressed by the eccentric pin and the driven member moves to the other side. The connection mechanism according to any one of claims 1 to 3 , wherein the driven unit includes a guide mechanism that reciprocates the driven member in the predetermined direction.

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