JP4879776B2 - Vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner, and more particularly to a dust removal configuration of a rotating main filter.

In a conventional vertical vacuum cleaner, a dust collection box having a dust collecting chamber and a filter chamber, a cylindrical corrugated main filter rotatably provided in the filter chamber, a driving means for rotating the main filter, and a driving means are held. It is attached to a lid that has a bearing part that covers the impact body that vibrates this by rotation of the main filter, covers the outer periphery of the main filter, partitions the dust collection chamber from the filter chamber, and rotates in conjunction with the main filter The impact filter is formed of a leaf spring, and a contact portion of the leaf spring tip with the main filter is wound around the leaf spring (see, for example, Patent Document 1) ).
Japanese Utility Model Publication No. 52-53174

  However, in the conventional vacuum cleaner dust-collecting box configuration, the impacting body is formed of a leaf spring, so wear due to sliding occurs between the surface of the main filter and the impacting body, and the surface of the main filter. It was easy for problems such as tearing to occur. As a countermeasure, in order to reinforce the sliding portion of the main filter with which the impacting body abuts, it is necessary to form the sliding portion with a hard material by two-material molding or the like, which is costly.

  An object of the present invention is to solve the above-mentioned conventional problems, and particularly to provide a vacuum cleaner that ensures the durability of the filter and improves the reliability in a configuration in which dust removal of the main filter is performed by a striking body. To do.

  In order to solve the conventional problems, a vacuum cleaner of the present invention includes a cylindrical main filter having a corrugated filter on a side surface, and a lid body having a bearing portion that rotatably holds the main filter. A striking body in contact with the corrugated filter, and the striking body is composed of an elastic body and a rotatable striking element attached to the tip of the striking body. When the impactor is pressed and the elastic body is deflected, the impactor vibrates the wave filter by colliding with the next wave portion when the elastic body returns to its original shape after overcoming the top of the wave portion; Therefore, even if the surface of the main filter is directly hit, by making the hitter freely rotatable, damage to the main filter surface can be reduced, and it is possible to prevent tearing. As the material, it becomes possible to select a material such as Teflon easily hardly scratch the surface of the (R) or the like is worn. Furthermore, the ability to strike the main filter directly improves the dust removal efficiency of the dust accumulated on the main filter and eliminates the need to form the hit part by molding two materials, improving the performance by expanding the ventilation area. It becomes possible to reduce clogging at a low cost.

  The vacuum cleaner of the present invention can reduce the damage to the surface of the main filter by configuring the striking element for dust removal of the rotating main filter to be rotatable, and a highly reliable dust removing structure is inexpensive. Can be realized.

  1st invention is equipped with the cylindrical main filter which comprised the waveform filter in the side surface, the cover body which has the bearing part which hold | maintains the said main filter so that rotation is possible, and the impacting body which contact | connects the said waveform filter, The striking body is composed of an elastic body and a rotatable striking element attached to the tip of the striking body, and when the main filter rotates, the striking element is pressed against the wave portion of the corrugated filter, and the elastic body bends. The striking element vibrates the wave filter by colliding with the next wave part when the elastic body returns over the top of the wave part, and directly strikes the surface of the main filter. In this case, by making the impactor rotatable, damage to the main filter surface can be reduced and tearing can be prevented, and as a material of the impactor, a table such as Teflon (registered trademark) can be used. The hard scratching but also enables selective material such as easily worn. Furthermore, the ability to strike the main filter directly improves the dust removal efficiency of the dust accumulated on the main filter and eliminates the need to form the hit part by molding two materials, improving the performance by expanding the ventilation area. It becomes possible to reduce clogging at a low cost.

  The second invention is characterized in that, in particular, the main filter of the first invention is configured to be detachable with respect to the bearing portion. The main filter can be attached and detached with a relatively inexpensive and simple configuration. As a result, it is possible to improve the maintainability, and even when the main filter is detached, the driving means does not fall apart, and it is possible to avoid troubles during attachment and detachment.

  The third aspect of the invention is an elastic body of the first or second aspect of the invention, which has an operation portion for separating the striker from the wave portion of the wave filter against the bias of the elastic body. When the filter is attached / detached, the main filter can be attached / detached in a state where the striker and the main filter are not in contact with each other, so that the attachment / detachment at the time of cleaning the main filter can be improved.

  In the fourth invention, in particular, the elastic body of the first or second invention is constituted by a torsion coil spring having two arms extending from both ends, and a rotating roller is rotatably held between the two arms of the torsion coil spring. Therefore, it is possible to hold the rotating roller inexpensively and easily without adding another part.

  According to a fifth aspect of the present invention, the impacting body has a cover body that covers at least one arm of the torsion coil spring, and the operation portion for separating the impacting element from the wave portion of the corrugated filter against the bias of the elastic body. It is configured to extend from the cover body, and it can reduce the movement of the torsion coil spring arm to open due to the impact generated when the main filter hits or hits the main filter when the main filter is attached or detached, and prevents the striker from coming off. It becomes possible to do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is an overall perspective view of the main body of the vacuum cleaner according to the first embodiment of the present invention, FIG. 2 is an exploded perspective view of a dust collection box unit of the vacuum cleaner, and FIG. 3 is the same vacuum cleaner. FIG. 4 is a cross-sectional view of the main part of the dust box unit of the vacuum cleaner, FIG. 5 is a perspective view of the main part of the lid filter unit of the vacuum cleaner, and FIG. FIG. 7 is a perspective view of the main part of the lid filter unit of the vacuum cleaner.

  In the figure, reference numeral 1 denotes a main body of a vacuum cleaner, which includes a motor (not shown), a main body 4 having a connection part 2 and an exhaust part 3 with a hose (not shown), a dust collection chamber 5 and a filter chamber. 6, a dust collection box unit 7 that is detachably held on the main body portion 4 is provided, and the vacuum cleaner main body 1 is connected to a connection portion 2 via a hose (not shown), It is connected to an extension pipe (not shown) and a floor nozzle (not shown).

  Further, the main filter 8 is configured such that a corrugated filter 9 formed in a cylindrical shape is sandwiched and bonded and fixed between a filter cover front 10 and a filter cover 12 formed integrally with a packing a11.

  Further, the lid 16 having the bearing portion 13, the packing b <b> 14, and the packing c <b> 15 has slight backlash at the filter shaft front 18 having the first screw portion 17 and the filter shaft front 20 having the handle portion 19. After clamping, the lid unit 22 is formed by fastening with screws 21.

  The front of the main filter 8 is covered with a primary filter 25 having a packing d23 and a mesh filter 24. The main filter 8 and the primary filter 25 are held after passing through the filter shaft 18 and have an operation knob. The fastening body 27 having the second screw portion 26 is fastened and held.

  Here, the dust collection box unit 7 includes a dust collection box 28 and a lid filter unit 29 in which a primary filter 25 and a primary filter 25 are fastened to a lid unit 22 by a fastening body 27.

  The dust collection box 28 has a dust tight chamber 5, a filter chamber 6, a rotary tight surface 30 with the packing d 23 of the primary filter 25, and a fixed tight surface 31 with the packing b 14 of the lid unit 22.

  Next, as shown in FIG. 5, an impacting body 37 for removing dust attached to the main filter 8 is disposed in the lid unit 22. As shown in FIG. 6, the impacting body 37 has a torsion coil spring 32 as an elastic body and a rotating roller 33 as an impactor of the main filter 8, and the rotating roller 33 can be rotated from both sides by an arm 34 of the torsion coil spring 32. The torsion coil spring 32 is passed through a screw boss portion 35 protruding from the lid unit 22, and then covered with a cover body 36 having an operation portion 36a, and is rotatably held by a screw 35a.

  Here, the cover body 36 is integrally provided with a holding portion 36 b that holds the base portion of the arm 34 of the torsion coil spring 32.

  Further, as shown in FIG. 5, the primary filter 25 includes an outer peripheral frame 25a that forms an outer periphery, a central frame 25b that is fastened to the filter shaft 18 by a fastening body 27, and from the outer peripheral frame 25a toward the central frame. A plurality of branch frames 25c extending in a substantially arc shape, and a mesh filter 24 covering an opening formed by the outer peripheral frame 25a, the central frame 25b, and the branch frame 25c are integrally formed. A plurality of ribs 25d are formed on the branch frame 25c so as to protrude toward the filter cover front 10, and a support portion 38 is formed on the filter cover front 10 corresponding to the ribs 25d.

  In the present embodiment, four ribs 25d are formed at 90 ° intervals.

  In FIG. 7, the lid 16 has an arcuate support 39 having a slight gap from the vicinity of the outer periphery of the primary filter 25 on the main filter 8 side.

  The operation and action of the vacuum cleaner having the above-described configuration are as follows.

  The dust sucked from the floor nozzle (not shown) reaches the dust collecting chamber 5 through an extension pipe (not shown) and a hose (not shown), and after the coarse dust is separated, fine dust is removed. The contained airflow passes through the mesh filter 24 and reaches the filter chamber 6, and after fine dust is separated, the cleaned airflow is discharged from the exhaust unit 3 to the outside of the vacuum cleaner main body 1.

  Further, the fine dust accumulated on the main filter 8 is rotated by the rotating roller 33 when the main filter 8 rotates while interlocking with the primary filter 25 by manually rotating the handle portion 19 after the filter shaft 20. However, dust is removed by striking the main filter 8.

  If a large amount of fine dust has accumulated on the main filter 8 due to long-term use, etc., loosen it with the operation knob of the fastening body 27, remove the primary filter 25, and then remove the cover body 36. It is possible to remove the main filter 8 from the lid unit 22 and clean it while pulling the striking body 37 away from the main filter 8 with the operation portion 36a.

  Further, when dust accumulates so as to be compressed from below in the dust collecting chamber 5 and a force is applied to the vicinity of the outer periphery of the primary filter 25 on the main filter 8 side, the rib 25d provided on the primary filter 25 and the filter The support portion 38 of the front cover 10 is in contact with and the outer periphery of the primary filter 25 is supported by the support body 39 of the lid body 16, thereby preventing the deformation of the primary filter 25 having a relatively low strength. It is possible to maintain the seal between the packing d23 of the primary filter 25 and the rotating tight surface 30 of the dust collection box 28, so that coarse dust does not leak from the dust collection chamber 5 to the filter chamber 6. ing.

  Thus, according to the present embodiment, since the striking element of the main filter 8 is the rotary roller 33, the surface of the main filter 8 is not slid, and therefore damage due to wear on the surface of the main filter 8 is prevented. It is possible to reduce and prevent tearing, and it is also possible to select a material such as Teflon (registered trademark) that does not easily damage the surface but easily wears as the material of the striker.

  Furthermore, since the main filter 8 can be directly struck, the dust removal efficiency of the dust accumulated on the main filter 8 is improved, and it is not necessary to secure the strength of the hit part by molding two materials. As a result, the ventilation area can be increased, and performance can be improved and clogging can be reduced at a low cost.

  In addition, since the rotating roller 33 is rotatably held by the two arms of the torsion coil spring 32, the rotating roller 33 can be held rotatably and inexpensively without adding another part.

  Further, since the arm 34 of the torsion coil spring 32 and the rotary roller 33 can be separated from the main filter 8 by manually operating the operating portion 36a of the cover body 36, when the main filter 8 is attached or detached, the main filter 8 The main filter 8 can be easily attached and detached while the wave portion and the rotating roller 33 are not in contact with each other, and the detachability of the main filter 8 when cleaning the main filter 8 can be improved.

  Further, since the cover body 36 is configured to hold the root of the arm 34 of the torsion coil spring 32, the main filter 8 is generated by hitting the arm 34 of the torsion coil spring 32 and the rotating roller 33 when the main filter 8 is attached / detached. It is possible to prevent the rotation roller 33 from coming off due to the impact.

  Further, by attaching the filter shaft front 18 and the filter shaft rear 20 to the lid 16 so as to be rotatable, the main filter 8 can be attached and detached with a relatively inexpensive and simple configuration. At the time of detachment, the driving means of the main filter 8 does not fall apart, and it is possible to avoid troubles when attaching and detaching.

  In addition, since the main filter 8 and the primary filter 25 are fastened together and loosened together with the fastening body 27, both parts can be attached and detached at the same time. Therefore, the main filter 8 and the primary filter having a large outer shape with a relatively inexpensive and simple configuration. The filter 25 can be attached and detached, and the detachability of the main filter 8 and the primary filter 25 can be improved.

  Further, a support portion 38 between the primary filter 25 and the filter cover 10 and a support body 39 of the lid body 16 abuts and supports the vicinity of the outer periphery of the primary filter on the filter chamber 6 side. Even when dust accumulates so as to be compressed and the vicinity of the outer periphery of the primary filter 25 tries to bend toward the main filter 8 side, the packing d23 of the primary filter 25 and the rotating tight surface 30 of the dust collection box 28 It is possible to prevent coarse dust from leaking from the dust collection chamber 5 to the filter chamber 6 from between the two, and when rotating the primary filter 25 having a large diameter, in addition to the central rotary shaft, The cross-shaped support portion 38 with the filter cover front 10 can also transmit the rotational force, and the coarseness between the packing d23 generated from the rotational blur of the primary filter 25 and the rotational tight surface 30 can be obtained. Not only can reduce the passage, it becomes possible to reduce the rotational operation force of the primary filter 25.

  As described above, the vacuum cleaner according to the present invention can improve the reliability of a dust collection box having a rotating main filter, a primary filter, and an impacting body, and various dust collection configurations. Is applicable.

Whole perspective view of the vacuum cleaner in the 1st Embodiment of this invention Exploded perspective view of the dust box unit of the vacuum cleaner Inside perspective view of dust box of the vacuum cleaner Cross section of the main part of the dust box unit of the vacuum cleaner The principal part perspective view of the lid filter unit of the vacuum cleaner Side view of the impactor of the vacuum cleaner The principal part perspective view of the lid filter unit of the vacuum cleaner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner body 8 Main filter 13 Bearing part 16 Cover body 32 Torsion coil spring (elastic body)
33 Rotating roller (batter)
34 Arm 36 Cover body 36a Operation unit 37 Batter

Claims (5)

A cylindrical main filter having a corrugated filter on its side surface, a lid having a bearing that rotatably holds the main filter, and an impacting body in contact with the corrugated filter, the impacting body being an elastic body And a rotatable striking element attached to the tip thereof, and when the main filter rotates, the striking element is pressed against the corrugated part of the corrugated filter, so that the elastic body bends and overcomes the top of the corrugated part. Then, when the elastic body returns to its original state, the impactor vibrates the wave filter by colliding with the next wave portion. The vacuum cleaner according to claim 1, wherein the main filter is configured to be detachable from the bearing portion. The electric vacuum cleaner according to claim 1 or 2, wherein the impacting body has an operation part for separating the impacting element from the wave part of the corrugated filter against the bias of the elastic body. The electric vacuum cleaner according to claim 1 or 2, wherein the elastic body is constituted by a torsion coil spring having two arms extending from both ends, and a rotary roller is rotatably held by the two arms of the torsion coil spring. The striking body has a cover body that covers at least one arm of the torsion coil spring, and an operating portion for separating the striking element from the wave portion of the wave filter against the bias of the elastic body extends from the cover body. The electric vacuum cleaner according to claim 4, which is configured.

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