JP4982395B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to an electric vacuum cleaner having a dust removal function for removing dust collected and adhering to the inner surface of a dust collection bag.

  The vacuum cleaner equipped with a dust bag is convenient to handle because it can be removed and discarded when the dust bag is full due to the captured dust, and then replaced with a new dust bag. It is.

  However, depending on the type of dust collected, the dust bag gradually becomes clogged before the dust bag becomes full. Since the airflow resistance increases, the suction force gradually decreases, so that the dust bag is vibrated at a predetermined time and the fine dust adhering to the filtration surface is shaken off on the bottom surface of the dust bag. It has been proposed to provide a dust removal mechanism that eliminates or prevents clogging of the dust bag by this dust removal.

  An example of a vacuum cleaner having a dust removal mechanism that removes dust adhering to the inside of a dust bag is described in Patent Document 1.

  The dust removal mechanism is a mechanism that shakes off dust adhering to the inner surface (filtering surface) of the dust bag by vibrating a dust remover that acts on the outer peripheral surface of the dust bag. As a drive mechanism for vibrating the dust remover, an electromagnetic drive structure configured to vibrate by electromagnetic vibration and a code reel drive mechanism configured to transmit the vibration of the cord reel used for winding the power cord with a gear to vibrate are proposed. ing.

  Moreover, there exists a thing like patent document 2 in what has a cord reel type drive mechanism.

JP 2007-61150 A Japanese Utility Model Publication No. 58-753

  However, in the case of the conventional dust removal mechanism, in order to minimize the air loss and maximize the efficiency of removing dust, the mechanism itself becomes complicated, the number of parts increases, and the vacuum cleaner It led to an increase in the price of itself.

  For those equipped with a simple dust removal mechanism, instead of a small number of parts, the dust removal mechanism vibrates weakly and the dust attached to the inside of the dust collection bag is hard to fall off or is collected with dust. When the battery becomes full, there has been a problem that the dust removing body does not vibrate or becomes difficult to use because the user has an excessive force to pull out the power cord from the cord reel.

  In view of the above-described problems, an object of the present invention is to provide an electric vacuum cleaner capable of maximizing the dust removal effect with a simple dust removal structure without deteriorating usability even when the dust collection bag is filled with dust. It is to provide.

The present invention is an electric blower, a cord reel arranged next to the electric blower and wound with a power cord for supplying electricity to the electric blower, a dust collection bag arranged on the upstream side of the electric blower, A dust collection chamber in which the dust collection bag is placed, a dust remover that applies vibration to the dust collection bag to remove dust attached to the inner surface of the dust collection bag, and a sliding surface provided on the cord reel In a vacuum cleaner comprising a rotating member urged by an elastic body and a crank mechanism that transmits the movement of the rotating member to the dust remover, in a state where the movement of the dust remover is limited, A power transmission absorption means for absorbing the power transmitted when the power applied from the rotating member reaches a predetermined value or more is provided between the power transmission paths from the crank mechanism to the dust remover .

  According to the present invention, the power collection path is provided with the power transmission absorption means for absorbing the power transmitted when the power of the power transmission path reaches a predetermined value or more, so that the dust collection bag is filled with dust. Even in this case, the power is absorbed by the power transmission absorbing means, and the transmission of power to the dust remover is suppressed. For this reason, the power which pulls out a power cord from a cord reel does not become excessive, and it does not impair usability for a user.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, an outline of the vacuum cleaner will be described with reference to FIGS.

  As shown in FIG. 3, the vacuum cleaner is connected to a vacuum cleaner body 401, a hose joint 402 that connects the hose 403 to the vacuum cleaner body 401, an extension pipe 405 that is connected to the hose 403, and an extension pipe 405. A suction port 406 for sucking dust on the cleaning surface and a hand operation unit 407 provided with a hand switch 404 for controlling the operation of the vacuum cleaner.

  As shown in FIG. 2, the vacuum cleaner body 401 has a dust collection chamber 202 in which an electric blower 200 and a dust collection bag 201 such as a paper bag are detachably accommodated, and collects dust sucked by the suction force of the electric blower 200. Dust is collected in the dust bag 201. The dust sticks to the inside of the dust bag 201, and the dust bag 201 gradually begins to clog, and the suction force gradually decreases. Furthermore, since the pressure inside the dust collection chamber 202 is larger than the pressure inside the dust collection bag 201 as a negative pressure, the dust collection bag 201 sticks to the inner walls of the dust collection chamber 202 and the lid 203, The space through which the wind flows decreases and the suction force decreases.

  A dust remover 204 as a dust removal member is provided inside the lid 203. When clogging of the dust bag 201 progresses and the suction force decreases, the dust remover 204 is operated to remove the dust stuck inside the dust bag 201 to recover the suction force.

  In addition, since the dust collected in the dust bag 201 contains a lot of dirty dust, the suction air that has passed through the dust is unsanitary. Therefore, in order to clean the suction air that has passed through the dust, a cleansing filter (filter) 206 for cleaning the suction air is attached to the dust remover 204 in the space where the suction air flows. The cleansing filter 206 is in contact with the exhaust air from the dust bag 201.

  The dust remover 204 also serves as a filter holding member that holds the filter. The dust remover 204 fitted with the cleanliness filter 206 is movably attached to the inside of the lid 203 with a little separation. A flow path space is secured between the clean filter 206 and the inner surface of the lid 203, and the suction air flows toward the downstream side in this space.

  As shown in FIGS. 4A and 4B, the cord winding device 503 is installed in the electric vacuum cleaner main body 401 so as to be adjacent to the electric blower 200. The cord winding device 503 has a cord reel 700, and the power cord 502 is wound around the cord reel 700. Electricity is supplied to the electric blower 200 by the power cord 502.

  The dust removal mechanism 504 (dust removal means) includes a cord winder 503, a rod 505 that can be moved up and down, and a dust remover 204 that is rotatably supported by the lid 203. Further, as shown in FIG. 13A, the packing 506 is attached to the partition wall 4010 of the electric vacuum cleaner main body 401. The packing 506 is made of a soft material (rubber or the like) for airtightness, and a rod 505 is inserted.

  The rod 505 can move up and down with respect to the partition wall 4010. However, since the packing 506 is interposed, airtightness is maintained.

  As shown in FIGS. 5A and 5B, the dust remover 204 is made of a lattice-like rib 604 except for the periphery, and a clean filter 206 is detachably attached thereto. This clean filter 206 is held by a surrounding portion 6010 and a filter fixing rib 601 provided on the dust remover 204 so as to surround the lattice-like rib 604.

  Since the cleaning filter 206 is held by the filter holding means of the surrounding portion 6010 and the filter fixing rib 601, it does not fall off even when the dust removing operation of the dust remover 204 is performed.

  Since the air gaps are formed between the lattice-like ribs 604, even if the dust bag 201 is inflated and pressed against the dust remover 204, the air flowing through the cleaning filter 206 is ensured.

  As shown in FIGS. 1A and 1B, the dust remover 204 is disposed so as to be rotatably supported by the lid 203 by a shaft 602.

  Further, as described above, the flow path space 101 is provided between the dust remover 204 and the lid 203. Even if the dust bag 201 (not shown) inflates, the flow of the wind is secured by the flow path space 101.

  As shown in FIG. 1B, an elastic body 102 (biasing means) such as a spring is interposed between the dust remover 204 and the lid 203, and the shaft 602 serves as a fulcrum. The rotational moment in the direction of pressing the tip of the dust remover 204 against the lid 203 is always applied.

  As shown in FIG. 6, the cord winding device 503 has a circular sliding surface 7010 concentric with the rotation axis of the cord reel 701 on the outer peripheral side of the cord reel 701. The sliding surface 7010 is provided with a recess 7011 that is recessed toward the rotation axis from the outer envelope.

  The rotation member 702 is rotatably supported by the rotation support portion 7020. The rotation member 702 has a transmission part 7021 at the left end of the rotation support part 7020 and a sliding part 7022 between the transmission part 7021 and the rotation support part 7020.

  The sliding portion 7022 is placed so as to be in sliding contact with the sliding surface 7010 of the cord reel 701. Since the sliding portion 7022 is a protrusion that protrudes in an arc shape, the sliding portion 7022 slides smoothly. The rotation member 702 includes a spring (not shown) in the rotation support portion 7020 and is urged so that the sliding portion 7022 always contacts the sliding surface 7010.

  Further, the cord winding device 503 includes a support base 703 that holds the cord reel 701, a power cord winding button 704 that unlocks when the power cord 502 is wound, and an elastic energy at the time of winding when the power cord 502 is pulled out. It consists of a spring 705 (winding spring) that stores

  When the user pulls out the power cord 502, the cord reel 701 rotates. The rotating member 702 is urged so that the sliding portion 7022 always contacts the sliding surface 7010 of the cord reel 701. Therefore, the rotating member 702 rotates in the direction of the arrow B as shown in FIG. When the sliding portion 7022 exits the recess 7011, the rotating member 702 rotates in the direction of arrow A on the contrary. Therefore, as the cord reel 701 rotates, the rotating member 702 repeatedly rotates in the arrow B direction and in the arrow A direction.

  As shown in FIG. 7, the rod 505 (vibrating member) is connected to the rotating member 702. The lower end of the rod 505 serving as a vibration member is connected so as to abut on a transmission portion 7021 provided at the tip of the rotating member 702 on the sliding portion 7022 side.

  In other words, the lower end of the rod 505 has a U-shaped concave portion 5050 that is fitted so that the transmission portion 7021 is connected thereto. Since the connection is such that the transmission portion 7021 fits into the recess 5050, the assembly can be easily performed and the connection can be freely moved. The rod 505 of the vibration member moves up and down as the rotation member 702 rotates.

  The upper end of the rod 505 is inserted and coupled to the packing 506, and when the rod 505 moves up and down, the packing 506 also moves up and down. The rod 505 and the packing 506 are collectively called a vibrator 801.

  A passive unit 603 provided on the dust remover 204 is disposed on the top of the vibrator 801 so as to abut against it. When the vibrator 801 moves upward, the passive portion 603 is pushed up, and the dust remover 204 rotates. Further, when the vibrator 801 moves downward, the dust remover 204 rotates in a direction to follow the vibrator 801 by the elastic body 102 provided in the dust remover 204.

  With the rotation of the dust remover 204, dust removal vibration is applied to the dust collection bag 201 such that the front side and the rear side of the dust collection bag 201 are alternately crushed from above. 7 operates so that the front side of the dust collection bag 201 is crushed by the rotation of the arrow A of the dust remover 204 and the rear side of the dust collection bag 201 is crushed by the rotation of the arrow B.

  On the other hand, when the user winds up the power cord 502, the power cord winding button 704 is pressed to release the lock, and the spring is automatically wound by the elastic force of the spring 705. At that time, the turning member 702 is pushed by the power cord winding button 704 and turned to move the sliding portion 7022 away from the sliding surface 7010. Therefore, when the power cord 502 is wound, the dust remover 204 does not rotate, and the power cord 502 is smoothly wound by the elastic force of the spring 705.

  When the user operates the hand switch 404 installed in the hand operation unit 407, the electric blower in the vacuum cleaner body 401 is operated in the operation mode according to the operated switch. The suction force generated by the electric blower reaches the suction port 406 through the hose 403 and the extension pipe 405.

  At this time, in the dust collection chamber 202, the pressure inside the dust collection bag 201 is lower than the pressure inside the dust collection chamber 202 at a negative pressure, and therefore the dust collection bag 201 spreads over the dust collection chamber 202.

  Here, the inlet 103 (shown in FIG. 1) of the flow path space 101 secured on the upper side of the dust remover 204 is greatly opened in front of the cleansing filter 206 to secure the flow of wind to the electric blower. Moreover, the wind of the flow enters from between the lattice-like ribs 604 of the dust remover 204, passes through the cleansing filter 206, and is guided to the electric blower.

  As a result, the wind actively flows to the cleansing filter 206 provided inside the lid 203, and the suction air that comes out of the dust collection bag 201 by filtering dust can be cleaned. At the same time, suction air is always guided from the inlet 103 of the channel space 101 to the channel space 101, and the dust collection bag 201 is inflated and stuck inside the lid 103, thereby preventing a reduction in suction force due to a decrease in the suction channel. be able to. Further, since the suction air can be sucked from the entire surface of the dust bag 201, clogging due to dust can be hardly caused.

  However, when dust enters, it spreads over the inner surface of the dust bag 201 and sticks, and the suction force gradually decreases. The dust adhered to the inner surface of the dust bag 201 accumulates in the floor direction by the force of gravity when the operation of the electric blower is stopped, but the relatively light dust remains stuck to the dust bag 201. It has become.

  Therefore, when the user pulls the power cord 502 at the start of cleaning, the dust remover 204 pushed up by the vibrator 801 vibrates the ceiling surface of the dust bag 201 to remove dust. As a result, the suction force is restored and the surface area for filtering new dust is restored, so that a large amount of dust can be collected even if the dust bag 201 is relatively small.

Further, the clean filter 206 attached to the dust remover 204 operates together with the dust remover 204, so that the air hitting the clean filter 206 increases. For this reason, the bad smell that comes out of the dust collection bag 201 during dust removal and the fine dust that cannot be removed by the dust collection bag 201 can be effectively removed by the cleaning filter 206. Even if the lid 203 is opened immediately after dust removal, unsanitary air scattering is reduced. The clean filter 206 can be used to remove odors from the dust bag 201 by using a deodorizing effect (such as titanium oxide, guanidine, oyster catechin, and bamboo charcoal). The cleansing filter is also lifted simultaneously by the lifting and turning of 204, and it becomes possible to deodorize more effectively by forcing the air containing odor to pass through the cleaning filter 206.
Here, since the cleaning filter 206 is held by the filter fixing rib 601, it is fixed so that it does not come off even when the dust remover 204 operates violently.

  Further, the dust remover 204 and the cleaning filter 206 are configured to be rotatably supported on the lid 203 together. For this reason, since it is a simple structure compared with the structure which isolate | separates the filter 206 for cleanliness from the dust remover 204, and fixes to the cover body 203, there are few parts and it is easy to assemble.

  The noise reduction of the dust removal mechanism will be described with reference to FIGS.

  The moment of inertia of the dust remover 204 is I, the acceleration of the vibrator 801 is a (the direction toward the dust remover 204 is positive), and the pivot of the dust remover 204 is applied from the point where the vibrator 801 applies an external force to the dust remover 204. The distance in the direction perpendicular to the operation of the vibrator to the center is L, and the moment that the elastic body 102 applies to the dust remover 204 is M (the rotation direction in which the dust remover 204 approaches the vibrator 801 is the positive direction). At the position where M + (I × L × a) <0 for the parts P and Q in FIG. 9A, the dust squirting element 204 is attached to the movement of the vibrator 801, causing a jump and noise. Will occur.

  That is, when the dust remover 204 cannot follow the descending operation of the vibrator 801, the upper end of the vibrator 801 and the passive part 603 of the dust remover 204 collide to cause a jump and noise. The jump noise is likely to occur as the cord reel 701 rotates faster.

  Therefore, as shown in FIG. 9B, in the present invention, when the dust removing mechanism 504 is operated, the passive portion 603 of the dust remover 204 is always set to M + (I × L × a)> 0 at any position. The vibrator 801 was always kept in contact with the vibrator 801. Thereby, generation | occurrence | production of the noise between the vibrator | oscillator 801 and the dust remover 204 can be suppressed to the minimum. In the present invention, the above relationship is established when the drawing speed of the power cord 502 is about 1 m / s or less.

  In order to establish this relational expression, in addition to changing the force of the elastic body 102, a method of considering the shape of the recess 5050 of the sliding surface 7010 of the cord reel 701 is also effective.

  The dust collection bag dust removal will be described with reference to FIGS. 10 (a), 10 (b), 11 (a), and 11 (b).

  In the dust remover 204 shown in FIG. 10B, dust removal ribs 1102 exist on the side of the passive portion 603. The dust remover 204 shown in FIG. 10A does not have the dust removal rib 1102. When the dust remover 204 rotates in the direction of arrow B shown in FIG. 11B, it shakes so as to crush the upper rear portion of the dust bag 201.

  However, in the dust remover 204 without the dust removal rib 1102 shown in FIG. 10A, the dust collection bag 201 is not sufficiently crushed. By providing the dust removal rib 1102 as shown in FIG. 10 (b), the upper rear portion of the dust bag 201 is sufficiently crushed, so that good dust removal can be expected.

  In this way, dust removal at the front and rear portions of the dust collection bag 201 by the dust remover 204 is performed by providing the dust removal ribs 1102 so that the dust removal at the front side of the dust collection bag 201 shown in FIG. The dust removal is performed without fail, and the dust collection bag 201 is provided with extensive dust removal.

  The elastic body of the dust remover will be described with reference to FIGS. 12 (a) and 12 (b).

  The dust remover 204 has an elastic body 1301 extending in a rod shape. The elastic body 1301 is integrally formed with the dust remover 204 using the same synthetic resin as the dust remover 204. When the dust remover 204 is pushed by the vibrator 801 and rotates in the direction of arrow A shown in FIG. 12B, the elastic body 1301 bends and accumulates elastic force. Next, when the vibrator 801 moves away from the dust remover 204, the elastic body 1301 rotates in the arrow B direction following the vibrator 801. Thereby, since the elastic body 1301 can be integrated with the dust remover 204 without deteriorating the dust removal performance, the number of parts can be reduced, and the workability at the time of assembly can be improved and the cost can be reduced.

  In the embodiment described above, the application range can be expanded by providing the dust remover around a dust collection bag other than the lid.

  The power transmission absorption means provided in the dust removal mechanism will be described with reference to FIGS. 13 (a) and 13 (b).

  As shown in FIG. 13A, a spring elastic body 8010 is provided in the hole of the packing 506 into which the upper end side of the rod 505 constituting the vibrator 801 is inserted. Further, the cylindrical packing 506 into which the elastic body and the rod 505 are inserted has a bellows 5060 which can be expanded and contracted near the base. The packing 506 and the elastic body 8010 are referred to as power transmission absorption means.

  When the rod 505 of the vibrator 801 is pushed upward by the rotating member 702, the tip end side of the packing 506 is pushed upward, the dust remover 204 is moved, and the dust collection bag 201 is removed.

  When the dust collection bag 201 is filled with dust collection, the dust remover 204 is strongly pressed by the dust collection bag 201, so that it is difficult for the dust remover 204 to rotate the seesaw operation with the shaft 602 as a fulcrum. At this time, the elastic body 8010 of the power transmission absorbing means bends and the ascending operation of the rod 505 is absorbed. By the power transmission absorption by the power transmission absorption means, it is possible to suppress an excessive force for pulling out the power cord 502 of the cord reel 701 that is a dust removal driving source of the dust remover 204, and the user convenience is improved. Further, since the rotation of the seesaw operation of the dust remover 204 is not forcibly performed, it is possible to prevent failure of the dust removal mechanism.

  The power transmission absorbing means absorbs the transmitted power when the power of the power transmission path including the cord reel, the crank mechanism, and the dust remover reaches a predetermined value or more. In FIG. 13A, the power transmission absorption means is provided in the vibrator 801 of the crank mechanism included in the dust removal mechanism, but the function of power transmission absorption is provided anywhere in the power transmission path.

  In the power transmission absorbing means shown in FIG. 13B, the elastic body 8010 provided in the packing 506 is omitted, and a pressure absorbing portion 8011 is provided at the tip of the packing 506. The pressure absorbing portion 8011 is thick in the compression direction and has a hole 8012 or a structure (not shown) capable of absorbing power transmission in the center, and thus has a function of power transmission absorption. Various configurations in which a composite such as a combination of the pressure absorption unit 8011 and the elastic body 8010, or a power transmission absorption unit including the pressure absorption unit 8011 are integrated with or separated from the vibrator can be employed.

  The sliding surface, the recess, the rotating member, and the sliding portion of the cord reel of the crank mechanism will be described in more detail with reference to FIGS.

  In the structure of rotating (swinging) the rotating member 702, the sliding surface 7010 of the cord reel 701 is provided with a recess 7011 in which the sliding portion 7022 of the rotating member 702 is in sliding contact, so that the sliding portion 7022 is interposed via the vibrator 801. The load applied to the elastic body 102 as an urging means that presses the recess 7011 is not in the direction of increasing during the dust removal operation, but in the direction of opening. Thereby, the lifetime of the elastic body 102 can be extended and the load on the user who pulls out the power cord can be reduced.

  Further, the recess 7011 has two arcs a. b. Arc a is the descending portion side where the sliding portion 7022 descends into the recess 7011 as the cord reel 701 rotates, and the arc b is the return portion side where the sliding portion 7022 returns from the bottom of the recess 7011 to the outer envelope of the sliding surface 7010. .

  The curvature of the arc a on the descending side is larger than the curvature of the arc b on the return side. For this reason, the sliding portion 7022 quickly descends into the recess 7011 and gently returns from the bottom of the recess 7011. Therefore, the impact load received when passing through the return portion having a small curvature is reduced, and damage to the component due to repeated load is prevented. In addition, when the rotation speed of the cord reel 701 is low, the dust removal effect can be enhanced with the momentum when passing through the descending portion having a large curvature.

  Further, the rotation member 702 is rotatably supported by the rotation support portion 7020. The rocking / rotating member 702 has a transmission portion 7021 at the left end of the rotation support portion 7020 and a sliding portion 7022 between the transmission portion 7021 and the rotation support portion 7020. Both the sliding portion 7022 and the transmission portion 7021 are collectively provided on one side on the left side of the rotation support portion 7020. For this reason, the rotation member 702 is reduced in size and accommodated in a small space of the cord winding device 503 as compared with the case where the rotation support portion 7020 is disposed between the left and right.

  The dust remover will be further described with reference to FIGS. 11 (a) and 11 (b).

  The dust remover 204 is rotatably supported by the lid 203 with the shaft 602 as a fulcrum. The fulcrum of the shaft 602 provided between both ends of the dust remover 204 is arranged so that the length from the fulcrum to the end is shorter on the rear side than on the front side.

  For this reason, the region where the dust remover 204 swings and hits the dust collection bag 201 is wide on the front side and narrow on the rear side. Although the rear side has a narrow hitting area, the rear corner of the dust bag 201 is pushed, so that dust removal is performed over the ceiling corner part and the upper upper part.

  In addition, the arc a. Due to the curvature of b, the vibration on the rear side of the dust collection bag 201 hit by the dust remover 204 becomes stronger, so that the dust removal spreads widely for a narrow hitting area.

It is a figure concerning the example of embodiment of this invention, and is the figure which looked at the cover body of the vacuum cleaner from the inner side. It is the P section enlarged view in Drawing 1 (a). It is related to an example of embodiment of this invention and is a longitudinal cross-sectional view of a vacuum cleaner main body. It is the whole vacuum cleaner figure concerning an example of an embodiment of the invention. It is a partial section perspective view of the vacuum cleaner main part concerning an example of an embodiment of the invention. It is the P section enlarged view in Drawing 4 (a). It is a figure (for convenience of explanation, a filter for cleaning is a fragmentary sectional view) of a cleaning filter and a dust removal member of a vacuum cleaner concerning an example of an embodiment of the invention. It is an AA cross section of Drawing 5 (a). It is the cord winding apparatus of the vacuum cleaner which concerns on an example of embodiment of this invention. It is a perspective view of the dust removal mechanism (dust removal means) of the electric vacuum cleaner concerning an example of an embodiment of the invention. It is a side view of the dust removal mechanism (dust removal means) of the vacuum cleaner which concerns on an example of embodiment of this invention. FIG. 9 is a graph showing the operation of the dust removing member when the cord reel rotates by 0 degrees to θ degrees, and this is a case where M + (I × L × a) <0. FIG. 9 is a graph showing the operation of the dust removing member when the cord reel rotates by 0 degrees to θ degrees, and is a case where M + (I × L × a)> 0. It is the figure which looked at the dust removal member of the vacuum cleaner which concerns on an example of embodiment of this invention from the dust bag side. It is the figure which looked at the dust removal member which the vacuum cleaner which concerns on an example of embodiment of this invention improved from the dust bag side. The state of the dust removal of the improved dust removal member when the vibrator | oscillator of the vacuum cleaner which concerns on an example of embodiment of this invention pushes up a dust removal member is shown. The state of dust removal at the time of rotating so that the improved dust removal member of the vacuum cleaner which concerns on an example of embodiment of this invention may be pushed back by an elastic body is shown. It is a perspective view of a dust removal member which integrated an elastic body of a vacuum cleaner concerning an example of an embodiment of the present invention with a dust removal member. It is sectional drawing of the cover body provided with the dust removal member which integrated the elastic body of the vacuum cleaner which concerns on an example of embodiment of this invention with the dust removal member. It is a figure which shows the crank mechanism of the vacuum cleaner which concerns on an example of embodiment of this invention. It is a figure which shows the other examples of the crank mechanism of the vacuum cleaner which concerns on an example of embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 101 ... Channel space, 102 ... Elastic body, 103 ... Entrance of channel space, 202 ... Dust collection chamber, 201 ... Dust collection bag, 203 ... Cover body, 204 ... Dust remover, 206 ... Clean filter, 401 ... Electricity Vacuum cleaner body, 402 ... hose joint, 403 ... hose, 404 ... hand operation section, 405 ... extension pipe, 406 ... suction port, 407 ... hand operation section, 502 ... power cord, 503 ... cord winder, 504 ... dust removal mechanism , 505 ... Rod, 506 ... Packing, 601 ... Filter fixing rib, 602 ... Shaft, 603 ... Passive part, 604 ... Grid-shaped rib, 701 ... Cord reel, 702 ... Rotating member, 703 ... Support base, 704 ... Power supply Cord winding button, 705 ... spring, 801 ... vibrator, 1102 ... dust removal rib, 1301 ... elastic body.

Claims (5)

An electric blower, a cord reel disposed next to the electric blower and wound with a power cord for supplying electricity to the electric blower, a dust collection bag disposed upstream of the electric blower, and the dust collection bag A dust collecting chamber in which the dust collecting bag is placed, a dust remover that applies vibration to the dust collecting bag to remove dust adhering to the inner surface of the dust collecting bag, and an elastic so as to contact the sliding surface provided on the cord reel. In a vacuum cleaner comprising a rotating member urged by a body and a power transmission path for transmitting the movement of the rotating member according to the sliding surface shape of the cord reel to the dust remover,
When a state where the movement of the dust remover becomes difficult occurs, a power transmission absorbing means for absorbing the transmitted power when the power applied from the rotating member reaches a predetermined value or more is interposed between the power transmission paths. A vacuum cleaner characterized by being provided . The vacuum cleaner according to claim 1,
The power transmission absorbing means includes a spring, rubber, or a composite of a spring and rubber. An electric blower, a cord reel disposed next to the electric blower and wound with a power cord for supplying electricity to the electric blower, a dust collection bag disposed upstream of the electric blower, and the dust collection bag A dust collecting chamber in which the dust collecting bag is placed, a dust remover that applies vibration to the dust collecting bag to remove dust adhering to the inner surface of the dust collecting bag, and an elastic so as to contact the sliding surface provided on the cord reel. In a vacuum cleaner comprising a rotating member urged by a body and a power transmission path for transmitting the movement of the rotating member according to the sliding surface shape of the cord reel to the dust remover,
The power transmission path includes a vibrator that reciprocates to transmit power to the dust remover interposed between the rotating member and the dust remover,
Power transmission absorption that absorbs the transmitted power when the power transmitted from the cord reel to the dust remover via the power transmission path reaches a predetermined value or more when a condition that makes it difficult to move the dust remover occurs A vacuum cleaner comprising means provided between the power transmission paths . The electric vacuum cleaner according to claim 3,
The electric vacuum cleaner, wherein the power transmission absorbing means is provided at an end portion of the vibrator contacting the dust remover . The electric vacuum cleaner according to claim 4,
The power transmission absorbing means includes an elastic body such as a spring and rubber, and is formed integrally or separately with the vibrator .

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