JP5292119B2 - Electric vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner having a handle durable against a tensile load while preventing a structure from becoming complicated and manufacturing characteristics from deteriorating. <P>SOLUTION: Holes 71 are formed in a handle 43. A shaft 48 is inserted to the holes 71 for keeping a body lid 41 rotatably pivoted by a body case 25 in a direction orthogonal to a lifting direction of a vacuum cleaner body. Thereby, durability of the handle 43 against the tensile load is secured while preventing the structure from becoming complicated and manufacturing characteristics from deteriorating compared to screwed handles. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a vacuum cleaner provided with a handle for lifting a vacuum cleaner body.

  2. Description of the Related Art Conventionally, this type of electric vacuum cleaner includes a main body of a vacuum cleaner having a main body case in which an electric blower chamber that houses the electric blower and a dust collection chamber that communicates with the electric blower chamber are defined. A handle for lifting the vacuum cleaner main body is attached to the front of the main body case. This handle is formed in a U-shape, and is fixed by a plurality of screws in a direction in which the base end side intersects the lifting direction of the cleaner body (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 5-42065 (second page, FIGS. 1 and 3)

  However, when the handle as described above is attached to the upper part of the main body case, if the handle is screwed from the left and right directions intersecting the lifting direction of the cleaner body, the screw is exposed and the appearance is not good. Therefore, there is a problem that the configuration is complicated and the number of parts is increased, for example, it is necessary to attach a member of another piece so as to hide the screw.

  In this regard, although a configuration in which the handle is screwed to the main body case along the lifting direction of the cleaner body is conceivable, in such a configuration, the load on the cleaner body is increased along the lifting direction of the cleaner body. There is a problem that the structure receives only with a screw that is screwed, and the durability against a tensile load is not sufficient.

  Further, the above-described configuration requires a screwing operation when attaching the handle, and there is a problem that the manufacturability is not good.

  The present invention has been made in view of these points, and an object of the present invention is to provide a vacuum cleaner that secures durability against a pulling load of a handle while suppressing a complicated configuration and a decrease in manufacturability.

The present invention relates to a vacuum cleaner body that is pivotally supported via a shaft portion with respect to a main body case and includes a lid that opens and closes a dust collecting chamber by the rotation, and in the lifting direction of the vacuum cleaner body. A hole into which the shaft portion is inserted from a direction intersecting the shaft , and an engaging portion that engages with a part of the main body case from the lower side in the lifting direction, and a handle for lifting the cleaner body. The shaft portion of the lid is positioned on the opposite side of the engaging portion from the protruding direction of the engaging portion, and restricts the movement of the engaging portion in the direction opposite to the protruding direction of the engaging portion. It is.

According to the present invention, in the hole formed in the handle, from the direction intersecting the lifting direction of the cleaner body, the shaft portion for pivotally supporting the lid body on the body case is inserted , This shaft portion is located on the opposite side to the protruding direction of the engagement portion with respect to the engaging portion engaged with a part of the main body case from the lower side in the lifting direction, and is opposite to the protruding direction of the engaging portion. by restricting the movement of the engaging portion in the direction, as compared with the case of screwing the handle, suppressing a decrease in complexity and manufacturing of the structure, to a portion of the body case engaging portion It is possible to reliably prevent the engagement from being released by the shaft portion, and it is possible to secure durability against a pulling load of the handle.

It is a longitudinal cross-sectional view which shows the principal part of the vacuum cleaner of the related technology of this invention. It is a perspective view which shows the state which opened the cover body of the vacuum cleaner main body of a vacuum cleaner same as the above. It is a perspective view which shows the state which closed the cover body of the vacuum cleaner main body same as the above. It is a perspective view which shows the main body case of a vacuum cleaner main body same as the above. It is a perspective view which shows a vacuum cleaner same as the above. It is a longitudinal cross-sectional view which shows the principal part of the vacuum cleaner of the 1st Embodiment of this invention. It is a longitudinal cross-sectional view which shows the principal part of the vacuum cleaner of the 2nd Embodiment of this invention. It is a side view which shows the principal part of the main body case of a vacuum cleaner same as the above.

Hereinafter, the configuration of one related technique of the present invention will be described with reference to FIGS.

  In FIG. 5, reference numeral 11 denotes a so-called canister-type vacuum cleaner, and the vacuum cleaner 11 has a pipe part 12 and a vacuum cleaner body 13 to which the pipe part 12 is detachably connected.

  The pipe part 12 is provided on the distal end side of the hose body 16, the connecting pipe part 15 connected to the cleaner body 13, the flexible hose body 16 communicating with the distal end side of the connecting pipe part 15. The hand operating section 17, the extension pipe 18 detachably connected to the distal end side of the hand operating section 17, and the floor brush 19 as a suction port body detachably connected to the distal end side of the extension pipe 18. It has.

  On the hand operating portion 17, a gripping portion 21 protrudes toward the hose body 16, and the gripping portion 21 is provided with a plurality of setting buttons 22 for operation.

  As shown in FIGS. 2 to 4, the cleaner main body 13 includes a main body case 25, and a partition wall 26 is provided inside the main body case 25, and an electric blower 27 is provided behind the partition wall 26. An electric blower chamber (not shown) that houses a power supply cord (not shown) and a cord reel chamber (not shown) that is wound so that a power cord (not shown) is wound in and out are partitioned. A main body dust collection chamber 29, which is a dust collection chamber communicating with the suction side of the electric blower 27, is defined through the provided communication port 28, and a dust collection bag (not shown) such as a paper pack is provided in the main body dust collection chamber 29. It is arranged to be detachable.

  The main body case 25 includes a lower case 31 formed of, for example, a synthetic resin and opened on the upper side, and an upper case 32 that covers the electric blower chamber and the cord reel chamber, which are upper rear portions of the lower case 31.

  On both sides of the lower case 31, a large-diameter traveling wheel 35 (only one is shown) for traveling of the cleaner body 13 is rotatably supported. Further, a main body suction port 36 to which the proximal end side of the hose body 16 (connecting pipe portion 15) is detachably connected is provided in the front portion of the lower case 31 so as to communicate with the main body dust collection chamber 29.

  A body lid 41 as a lid is pivotally supported on the upper case 32 so that the body dust collecting chamber 29 can be opened and closed. In addition, a mounting recess 42 that is a space forming portion as a circular mounting portion in a plan view is formed in a substantially central portion in the left-right width direction at the upper portion of the upper case 32. A handle 43 is attached for a person to hold and lift the cleaner body 13. Further, the upper case 32 is formed with fitting recesses 44, 44, which are fitting portions into which the main body lid 41 is fitted, on both sides of the mounting recess 42. A winding button 45 for winding the cord is arranged.

  As shown in FIGS. 1 to 3, the main body lid 41 includes a lid upper plate portion 46 that is a lid main body that forms an outline of the cleaner body 13, and a rib formed integrally with a lower portion of the lid upper plate portion 46. Part 47 and shaft parts 48 and 48 which are lid shafts formed on the lid upper plate part 46.

  The lid upper plate portion 46 is formed in an arc shape on the front end side along the outer shape of the front end side of the lower case 31, and the rear end side is formed in a substantially straight shape along the left-right width direction. A notch 51 is formed in a semicircular arc shape along the outer periphery of the mounting recess 42 at the center in the width direction. Therefore, on both sides of the rear side of the lid upper plate portion 46, lid piece portions 52, 52 are formed as lid projecting portions located on both sides of the cutout portion 51. Furthermore, the entire lid upper plate portion 46 is curved so as to bulge upward in a curved shape.

  An arm portion, that is, an arm portion 54 for connecting the main body lid 41 and the main body case 25 side is integrally formed at the notch portion 51 side of each lid piece portion 52, that is, the lower portion on the inner edge side. Shaft portions 48 are integrally formed inside 54.

  The rib portion 47 is formed at a position in front of the cutout portion 51 of the lid upper plate portion 46, and is attached to the seal member 56 attached to the inner edge portion of the upper end of the main body dust collecting chamber 29 when the main body lid 41 is closed. A press-contact rib 57 that is a press-contact portion to be press-contacted and a plurality of reinforcing ribs 58 that are reinforcing portions for reinforcement are provided.

  The pressure-contact rib 57 has a tip projecting downward from the lower end of the lid upper plate portion 46 and is formed in an annular shape along the inner shape of the main body dust collection chamber 29.

  The reinforcing rib 58 is formed in a substantially L shape over the lower portion of the lid upper plate portion 46 and the press contact rib 57.

  Each shaft portion 48 is formed in a substantially cylindrical shape, and projects from each arm portion 54 along the horizontal direction. That is, the shaft portions 48 and 48 protrude from the arm portions 54 and 54 in a direction facing each other. Further, the thickness of each shaft portion 48 is set to be larger than the thickness of each other portion of the main body lid 41. Further, each shaft portion 48 is inserted into an insertion hole 62 which is a circular rotation shaft hole formed in the wall portion 61 of the upper case 32 that defines the outside of the mounting recess 42, and the main body lid 41 is attached to the main body 41. The case 25 (upper case 32) is pivotally supported.

  The mounting recess 42 is formed in a substantially spherical shape and defines a space S for an operator to insert his / her hand between the handle 43 and the mounting recess 42. Further, the mounting recess 42 is located above the heavy electric fan 27 and the cord reel, that is, on the center of gravity of the cleaner body 13, and the front end of the partition wall 26 is the rear part of the main body dust collection chamber 29. Located above.

  The handle 43 includes a handle main body 65 formed by bending upward in an arch shape, and handle connecting portions 66, 66 formed integrally with the handle main body 65 and projecting downward.

  The handle main body 65 is located above the mounting recess 42 along the left-right width direction, and the center portion 65a side is separated from the mounting recess 42 via the space S. Further, the center position of the handle body 65 is a position overlapping the center position of the mounting recess 42 in plan view. Therefore, the handle body 65 is located on the center of gravity of the cleaner body 13. Further, the handle main body 65 is formed so that the thickness gradually increases from the central portion 65a to the left and right end portions.

  The handle connecting portions 66, 66 are formed in the longitudinal direction in the vicinity of both side portions 65b, 65b of the handle main body 65, and are positioned on the inner side with an outer plate portion 66a that is an outer portion positioned on the outer side. An inner plate portion 66b which is an inner portion is integrally provided. These handle connection portions 66 and 66 are inserted into insertion recesses 68 and 68, respectively, which are inserted portions in which the lower end side, which is the front end side, is formed in the left and right sides of the mounting recess 42.

  Each outer plate portion 66a is positioned to be in substantial contact with the outer side surface 68a of the insertion recess 68 positioned inward of the wall portion 61 that defines the outer periphery of the mounting recess 42, and the insertion hole formed in the wall portion 61. Circular holes 71 communicating with the insertion holes 62 are formed at positions corresponding to the holes 62, respectively. In each hole portion 71, the distal end side of each shaft portion 48 of the main body lid 41 inserted into the insertion hole 62 is inserted. That is, each shaft portion 48 is inserted into each hole portion 71 from a direction intersecting (orthogonal) with respect to the lifting direction C (the vertical direction here) of the cleaner body by the handle 43. The tip portions of the inserted shaft portions 48 are located on the inner plate portion 66b side with respect to the side surface of the outer plate portion 66a, and are separated from the inner plate portion 66b.

  Each inner plate portion 66b has an engagement recess 73 as an upper engagement portion (first engagement portion) engaged with the inner edge portion 68b of the insertion recess 68 of the mounting recess 42 from the upper side along the vertical direction on the inner side surface. Are formed in a longitudinal cut. Further, the lower end side of each inner plate portion 66b is inserted into the engagement hole portion 74 formed in the bottom of each insertion recess 68, and the lower end portion inserted into the engagement hole portion 74 of each inner plate portion 66b. The lower engaging portion (second engaging portion) as an engaging portion that engages from below the lifting direction C of the cleaner body 13 with respect to the lower portion of the insertion recess 68 of the upper case 32 of the main case 25. ) That are claw-like engaging projections 75 project substantially inward toward the inside. Accordingly, each inner plate portion 66b is configured to sandwich a part of the main body case 25 (upper case 32) in the vertical direction by the respective engagement recesses 73 and the respective engagement protrusions 75.

  In addition, a filter member 79 such as a urethane filter is attached to the main body dust collection chamber 29 side (front surface portion) of the partition wall 26 so as to cover the communication port 28.

  The electric blower 27 is powered by a power supply via a power cord and is operated in a predetermined operation mode set by the setting button 22 (FIG. 5) by a control circuit (not shown) which is a control means in the cleaner body 13. Dust is sucked together with air through the pipe 12 (FIG. 5), and is arranged in the electric blower chamber with the front side as the suction side and the rear side as the exhaust side.

Next, the operation of the one related technique will be described.

  When the vacuum cleaner main body 13 is assembled, first, the electric blower 27 and the cord reel are accommodated in the main body case 25, and then the handle 43 is attached to the attachment recess 42 from above.

  When the handle connection portions 66 and 66 of the handle 43 are inserted into the insertion recesses 68 and 68 of the mounting recess 42 from above, the front end side of the inner plate portion 66b of each handle connection portion 66 is directed to the outer plate portion 66a side, that is, outward. A direction in which the distal end side of the inner plate portion 66b is separated from the outer plate portion 66a after the engagement protrusions 75 of the inner plate portions 66b are inserted into the engagement hole portions 74 of the respective insertion recesses 68 while being slightly elastically deformed. In other words, by being deformed to return inward, the engagement protrusion 75 is engaged with the inner edge of the engagement hole 74 from the lower side with respect to the main body case 25 (upper case 32). At the same time, the engagement concave portion 73 of the handle 43 engages with the inner edge portion 68b of the insertion concave portion 68 from above, and the main body case 25 (upper case 32) is clamped by the inner plate portions 66b from above and below.

  In this state, the main body lid 41 is attached to the main body case 25. That is, the cover portions 52 of the main body cover 41 are slightly elastically deformed outward so that the shaft portions 48 and 48 are separated from each other, and the shaft portions 48 and 48 are connected to the wall portion 61 of the mounting recess 42. When the lid pieces 52 are returned and deformed by being inserted from the insertion holes 62, 62, the shaft portions 48, 48 are inserted into the holes 71, 71 of the handle 43, so that the body lid 41 can be rotated to the body case 25. While being pivotally supported, the body lid 41 fixes the handle 43 to the body case 25 (upper case 32).

  Then, when carrying the cleaner body 13 in a state where cleaning has been completed or before cleaning, the operator holds the handle 43 and lifts the cleaner body 13.

  At this time, the load of the cleaner main body 13 is supported by the shaft portions 48 and 48 of the main body lid 41 and the engagement protrusions 75 and 75 of the handle 43.

As described above, in the one related technique , the body lid 41 is rotated to the body case 25 from the direction intersecting (orthogonal) with the hole 71 formed in the handle 43 with respect to the lifting direction C of the cleaner body 13. A configuration is adopted in which a shaft portion 48 for pivotally supporting is inserted.

  For this reason, the handle 43 can be fixed without using a screw or the like, so that compared to the case where the handle is screwed, there is no need for a separate piece for concealing the screw in design, and the configuration is complicated and manufactured. As the shaft portions 48 and 48 are located in a crossing direction with respect to the lifting direction C of the vacuum cleaner main body 13, compared with the case of screwing along the lifting direction C, etc. The durability against the pulling load of the handle 43 can be secured.

  That is, the structure of the handle 43 is simplified by utilizing the shaft support structure of the main body lid 41, and the original rotation of the main body lid 41 is not affected.

  Further, even if the handle 43 is fixed to the main body case 25 (upper case 32) using screws, the fixing with the screws can be made auxiliary, so the cleaner main body 13 using the handle 43 can be made. It is also possible to screw along the lifting direction C, and when screwed in this way, the position of the screw becomes difficult to see from the outside, so there is no need to attach another piece or the like for hiding the screw.

Next, a first embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to the said one related technique , the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the first embodiment, in the first related technology , the shaft portion 48 is close to the back side of the inner plate portion 66b (engagement protrusion 75), that is, close to the outside, in this embodiment, Due to the outward elastic deformation of the inner plate portion 66b, the engagement protrusion 75 is removed from the engagement hole 74, that is, the engagement of the engagement protrusion 75 with the main body case 25 (upper case 32) is released. This has been prevented.

  That is, each shaft portion 48 is formed in a longitudinal shape, is in close contact with the outer surface of the inner plate portion 66b, and the inner plate portion 66b (engagement protrusion 75) moves outward (elastic deformation). It is regulated.

  With this configuration, when the cleaner body 13 is lifted through the handle 43, the engagement of the engagement protrusion 75 is more reliably released by the elastic deformation of the inner plate portion 66b. It is possible to prevent this, and it is possible to secure durability against the pulling load of the handle 43.

Next, a second embodiment will be described with reference to FIGS. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the second embodiment, in the first embodiment, the outer circumferential surface of each shaft portion 48 protrudes in the radial direction, that is, the direction intersecting (orthogonal) with the axial direction of each shaft portion 48. A projection 81 that is a lid shaft projection is formed, and a key groove 82 into which the projection 81 can be fitted is formed in each insertion hole 62.

  Each projecting portion 81 is formed on the tip side of each shaft portion 48. Each projecting portion 81 is formed at a position that is an upper portion of each shaft portion 48 in a state where the main body lid 41 is closed (for example, the state shown in FIG. 3). Further, each protrusion 81 is also inserted into each hole 71, and is located between the outer plate portion 66a and the inner plate portion 66b.

  Each key groove 82 is notched along a direction inclined rearward and upward with respect to the insertion hole 62. For this reason, each protrusion 81 has a position other than the state in which the main body lid 41 is closed and the state in which the main body lid 41 is completely opened (the state shown in FIG. 2). It is configured to be aligned with each keyway 82 in position. In FIG. 8, only one insertion hole 62 is shown.

  With this configuration, each shaft portion 48 does not come out of each insertion hole 62 unless each projecting portion 81 is aligned with each key groove 82. 75 can be kept close to the back surface, and the engagement of the engagement protrusion 75 can be more reliably prevented from being released by the elastic deformation of the inner plate portion 66b, and the durability of the handle 43 against the tensile load can be improved. It can be secured.

  Further, each protrusion 81 and each keyway 82 are formed so as to be aligned at positions excluding the state in which the main body lid 41 is closed and the state in which the main body lid 41 is completely opened. Generally, when the vacuum cleaner main body 13 is lifted by the handle 43, the main body cover 41 is in a closed state, so that the projections 81 and the key grooves 82 are not aligned, and the shaft portions 48 are inserted into the insertion holes. It can be reliably prevented from coming out of 62.

In the second embodiment, a key groove similar to the key groove 82 may be formed in each hole 71.

Further, in each of the embodiments described above, the tip portions of the shaft portions 48, 48 are deformed from the inner plate portion 66b (engagement projection 75) so that the engagement projection 75 does not come out of the engagement hole 74. If they are close to each other so that they can be regulated, they do not have to be brought into contact with the inner plate portion 66b, that is, the back side of the engaging protrusion 75.

Further , in the main body dust collecting chamber 29, a dust collecting device such as a cyclone dust collecting cup may be attached instead of the dust collecting bag.

  The handle 43 is not limited to the one attached to the upper part of the main body case 25. In this case, it can be easily dealt with by appropriately changing the above-mentioned configuration with reference to the lifting direction of the cleaner body 13 by the handle 43.

  Moreover, the vacuum cleaner 11 may be configured to have a secondary battery as a power source instead of, for example, a cord reel.

11 Vacuum cleaner
13 Vacuum cleaner body
25 Main unit case
27 Electric blower
29 Dust collection chamber
41 Main body lid as lid
43 Handle
48 Shaft
62 Insertion hole
71 hole
75 Engagement protrusion as engagement part
81 Protrusion
82 Keyway

Claims (2)

A main body case that divides the dust collection chamber, an electric blower that is housed in the main body case and communicates with the dust collection chamber on the suction side, and is pivotally supported via a shaft portion with respect to the main body case. A vacuum cleaner body having a lid that opens and closes the dust collection chamber by movement;
A hole portion in which the shaft portion is inserted from a direction crossing the lifting direction of the cleaner body , and an engaging portion that engages with a part of the body case from below in the lifting direction. A handle for lifting the machine body ,
The shaft portion of the lid is located on the opposite side of the engaging portion from the protruding direction of the engaging portion, and restricts the movement of the engaging portion in the direction opposite to the protruding direction of the engaging portion. A vacuum cleaner characterized by that . The shaft portion has a protruding portion protruding in a direction intersecting the axial direction,
The body case is
An insertion hole into which the shaft portion is inserted;
The insertion holes are formed in the electric vacuum cleaner according to claim 1 wherein characterized in that the protrusion and a mateable key groove.

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