JPS64208Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a vacuum cleaner in which the upper wall of the dust collection chamber is formed by a dust collection lid that can be rotated to open and close.

(b) Prior art As a technology prior to the present invention, there is a vacuum cleaner disclosed in Japanese Utility Model Application Publication No. 59-27759. This publication describes a vacuum cleaner in which a dust collection lid is pivotally supported by an L-shaped pivot arm, and the pivot arm is covered with a part of the main body. The support arm is in contact with the lower surface of the front edge of the upper surface of the main body, thereby holding the dust collection lid in an open state. However, if a force greater than a predetermined amount is applied to open the dust collecting lid, the front edge of the main body tends to be pushed up by the pivot arm, and if the external force is strong, the main body may be damaged or The dust collection lid may be damaged.

(c) Problems to be solved by the invention This invention solves the shortcomings of the prior art mentioned in the previous section and prevents damage to the vacuum cleaner body and the dust collection lid when excessive external force is applied to the dust collection lid. The present invention provides a vacuum cleaner as described above.

(d) Measures to solve the problem As shown in the drawing, the proposed vacuum cleaner has a dust collection chamber formed on the front half of the vacuum cleaner body, and a storage chamber for the electric blower formed on the other half. The upper wall of the dust collecting chamber is formed by a dust collecting lid body which can be opened and closed and is supported by a pivot arm extending on the upper surface of the storage chamber, It is characterized in that a cover body that covers the pivot portion of the body and moves in the removal direction when the pivot arm comes into contact with it is elastically engaged in a detachable manner.

(e) Operation With the above structure, the cover body covers the pivot portion of the pivot arm of the dust collection lid and is elastically engaged with the upper surface of the storage chamber of the vacuum cleaner body. When an excessive force in the opening direction is applied to the dust collection lid, the pivot arm comes into contact with the cover, and the cover is pushed up and moved in the removal direction, causing elastic engagement with the vacuum cleaner body. The alignment is off. This movement of the plate in the removal direction causes the dust collection lid to further rotate slightly in the opening direction.

(F) Embodiment The vacuum cleaner 1 consists of a flexible pipe and an extension pipe (not shown), a vacuum cleaner main body 2 to which the flexible pipe is connected, and an attachment 3 replaceably attached to the tip of the extension pipe. . The main body 2
A dust collection chamber 4 is formed on the front half side, and a storage chamber 6 for housing the electric blower 5 is formed on the rear half side. The lower half of the dust collection chamber 4 and the storage chamber 6 are integrally formed with a synthetic resin lower case 7, and the upper half of the storage chamber 6 is formed with a synthetic resin upper case 8. The upper half of 4 is formed of a synthetic resin dust collection lid 9 that can be opened and closed. A bumper body 1 is provided on the upper edge of the lower case 7.
0 is fitted, and the upper case 8 is coupled with screws or the like so as to sandwich the bumper body 10. The electric blower 5 is sandwiched and housed in one half of the upper case 8 and the lower case 7 with a cushion material 11 interposed therebetween, and a cord reel (not shown) is housed in the other half. A guard body 12 is formed between the upper case 8 and the lower case 7 on the suction port side of the electric blower 5. The dust collection chamber 4 is provided in the front part of the lower case 7.
An intake port 13 is formed which communicates with the lower case 7, and an intake port body 14 is fixed to the front surface of the lower case 7 of the intake port 13 with a screw. One end of a flexible pipe (not shown) is connected to the intake port body 14. Self-propelled wheels 15 are pivotally supported on the rear half side of the lower case 7, and steering wheels 16 are pivotally supported on the lower half of the lower case 7. Said lower case 7
A lower half of a handle 17 which is divided into upper and lower parts is formed at the front upper part of the handle.

A dust collection case 21 is provided in the dust collection chamber 4 of the lower case 7.
is stored and can be taken out freely. The dust collection case 21
A mesh-like primary filter 22 and a secondary filter 23 made of filter paper or the like are formed at the rear of the filter. A suction port 25 is formed on the front surface of the dust collection case 21 and is brought into contact with the suction port 13 through a gasket 24. A holder 27 is formed at the front of the dust collection case 21 to attach and remove the dust collection bag 26. An airtight gasket 2 is attached to the upper edge flange of the dust collection case 21.
I am wearing 8. A take-out handle 29 is formed at the center of the rear upper surface of the dust collecting case 21. To take out the dust collection case 21 from the dust collection chamber 4, pull the handle 29 toward you as shown in FIG. can be taken out,
The dust collecting lid 9 can be smoothly taken out in a small space without having to take a large opening angle.

At the rear of the upper surface of the upper case 8 are a slide switch 30 for controlling the operating speed of the electric blower 5 and a rewind knob 31 for the cord reel.
is attached. A separate cover 32 is fixed to the upper surface of the upper case 8 with screws or the like. A recess 33 is formed in a portion of the cover 32 facing the slide switch 30, and a long through hole 34 corresponding to the operating range of the slide switch 30 is formed in the bottom surface of the recess 33. A protrusion 35 is formed on the peripheral edge of the through hole 34. A guide protrusion 36 extending parallel to the protrusion 35 is formed on the bottom surface of the recess 33 . The opening of the recess 33 is formed by the cover body 3.
Blockage occurs at 7. The through hole 34 of the cover body 37
A long hole 38 extending parallel to the through hole 34 is formed at a position shifted from the center. An operating intermediate body 39 that slides along the through hole 34 and the elongated hole 38 is housed in the recess 33 . The operation intermediate body 39 is inserted into the through hole 34 and the slide switch 3
A hanging protrusion 41 that connects with the operation shaft 40 of 0 and a mounting protrusion 43 that is inserted into the elongated hole 38 and to which the operation knob 42 is attached are formed. The operation knob 42
The slide switch 30 is moved along the elongated hole 38 via the operation intermediate body 39.
The electric blower 5 can be controlled by operating the . An elastic tongue piece 4 is provided at the edge of the elongated hole 38 to close the elongated hole 38.
4 is formed. The tongue piece 44 allows the recess 3
The intrusion of dust into the interior of 3 is almost prevented. Further, since the through hole 34 is formed to be offset from the elongated hole 38, dust that has entered through the elongated hole 38 can be removed from the recess 33.
It is prevented from accumulating on the bottom surface and entering through the through hole 34. Further, since the operation intermediate body 39 is slid by the protrusion 35 in a slightly floating state, dust is moved by the operation intermediate body 39,
It is prevented from rising inside the recess 33.
Further, the protrusion 35 allows the operation intermediate body 39 to slide smoothly, and also serves as a dam to prevent dust. The operation state of the operation knob 42 is displayed in a transparent part of the cover body 37, and the transparent display part is colored by moving the colored operation intermediate body 39 under the transparent display part. The setting state of the slide switch 30 is displayed. The transparent display portion is shown using various figures, such as curtains, wooden floors, tatami mats, carpets, etc.

A bearing body 51 for pivotally supporting a handle 50 for carrying the vacuum cleaner 1 which can be raised freely is provided in a protruding manner at the front of the upper surface of the upper case 8 . A U-shaped bearing 52 is formed at the upper end of the bearing body 51. A recess 53 for storing the handle 50 is formed in the cover 32. The bearing body 51 is exposed through a through hole 54 formed in the front side of the storage recess 53. The handle 50 is pivotally supported by inserting its pivot 55 through the through hole 54 and pivotally supporting the bearing 52 . The upper edge of the through hole 54 prevents it from coming off upward from the bearing 52. The pivot point of the handle 50 is located near the center of gravity of the vacuum cleaner 1, which makes it easy to carry.

The upper half of the handle 17 is formed in the front part of the dust collection lid 9. A storage section 60 for storing the attachment 3 is formed on the upper surface of the dust collecting lid 9. The storage section 60 is opened and closed by an opening/closing lid 61. The dust collection lid 9 and the opening/closing lid 61 are pivoted to the front part of the upper case 8 by a pair of substantially L-shaped pivot arms 62 and 63 that project from the rear. The pivot arm body 6
A pivot 66 is inserted into the insertion holes 64 and 65 formed in 2 and 63.
The dust collection lid 9 and the opening/closing lid 61 are connected to the upper case 8 by inserting the shaft 66 into the upper case 8, supporting the pivot 66 with a shaft support 67, and fixing the shaft 67 to the upper case 8 with screws 68. It is centrally supported by A pivot arm 63 of the opening/closing lid 61 is located between the pivot arms 62 of the dust collection lid 9, and a pivot arm formed in a U-shape is held by the pivot arms 63. A body 67 is located. The shaft support 6
7 is fixed to the central portion of the recess 53 of the housing 32, and the screw 68 fixes the shaft support 67, the housing 32, and the upper case 8 at the same time. A groove 69 is formed in the front part of the upper surface of the upper case 8 to accommodate the pivot arms 62 and 63. The handle 50 is pivotally supported at the front end portion of the upper case 8, and a pivot 66 that pivots the dust collection lid 9 and the opening/closing lid 61 is sized as shown in FIG. 9 from the pivot 55 of the handle 50. It is located at the rear by a. Since the pivot shaft 66 is located rearward from the pivot shaft 55, the retraction angle of the dust collecting lid 9 from the dust collecting chamber 4 can be small, as shown schematically in FIG. There is no need to rotate it a lot. This means that the size of the dust collecting lid 9 is larger than the handle 50.
This kind of vacuum cleaner that cannot be enlarged to the rear 1
It is particularly effective in

Since the dust collecting lid 9 and the opening/closing lid 61 are pivotally supported by the same pivot 66, the structure of the pivot portion is concentrated and simplified, and assembly efficiency is improved. Furthermore, even if the opening/closing lid 61 is open when the dust collecting lid 9 is opened, the opening/closing lid 61 does not prevent the dust collecting lid 9 from opening smoothly. Further, by setting the opening angles of the dust collecting lid 9 and the opening/closing lid 61 to be the same or slightly smaller, the dust collecting lid 9 and the opening/closing lid 61 become one body in the open state. When closing, the dust collection lid 9 and the opening/closing lid 61 can be closed at the same time.

a pivot arm 62 of the dust collecting lid 9 and the opening/closing lid 61;
63 is formed in a shape closer to a J-shape rather than an L-shape so that the insertion holes 64 and 65 of the pivot shaft 66 return to the front in this embodiment structure, and a relief hole is provided inside the pivot arm bodies 62 and 63. 70 and 71 are formed. A fan-shaped cam body 72 having an arcuate outer circumferential edge is formed on one side of the pivot arm body 62 of the dust collection lid body 9. A brake spring plate body 73 that presses against the outer peripheral edge of the cam body 72 is fixed to the groove portion 69 with a screw 74 . The brake spring plate body 73 is connected to the cam body 7.
2 applies appropriate braking to the dust collecting lid 9, and provides a holding force during the opening process and opening of the dust collecting lid 9. The opening/closing lid 61
A fan-shaped cam body 75 whose outer periphery is an arc is formed on one side of the pivot arm body 63 . An engaging portion 76 is formed at the end of the outer peripheral edge of the cam body 75. A plate spring body 78 is attached to the front part of the groove part 69 with a screw 77.
is attached. The spring body 78 is connected to the opening/closing lid 61.
When the opening/closing lid 61 is closed, it is pressed by the pivot arm 63 and urges the opening/closing lid 61 in the opening direction. Therefore,
When the opening/closing lid 61 is released from the closed state shown in FIG. 17, it is pushed up by the spring plate 78 to the state shown in two-dot chain line in FIG. Opening can be done smoothly. When the opening/closing lid 61 is then opened, the spring plate 78 comes into pressure contact with the outer peripheral edge of the cam body 75 and applies an appropriate braking force, but no force is generated to bias it in the opening direction. When the opening/closing lid 61 is opened, the spring plate 78 engages with the engaging portion 76 to hold the opening/closing lid 61 in the open state. The spring body 7 biases the opening/closing lid 61 in the opening direction.
8 is performed when the opening/closing lid 61 is closed,
In addition, it does not work unless the dust collecting lid 9 is closed, and when the dust collecting lid 9 is opened, so-called the state in which the dust collecting lid 9 is slightly raised, the opening/closing lid 61 is slightly raised. It is the same as rising,
The force exerted by the spring plate 78 to open the opening/closing lid 61 does not act. Therefore, even if the opening/closing lid 61 is unlocked when the dust collecting lid 9 is opened, it rotates integrally with the dust collecting lid 9 and is prevented from being opened inadvertently.

A cover body 80 is attached to the central portion of the recess 53 of the cover body 32 so as to cover the pivot portions of the dust collecting cover body 9 and the opening/closing cover 61. Elastic claw pieces 81 are formed on both sides of the front part and at the center of the rear part of the plate body 80, and the plate body 3
It is removably attached to the vacuum cleaner main body 2 by being elastically engaged with the engaging portion 82 of 2. The inner surfaces of both sides of the plate member 80 are located close to the ends of the pivot shaft 66 to prevent the pivot shaft 66 from coming off. The front edge of the covered body 80 is inserted into the relief parts 70 and 71 of the pivot arms 62 and 63 when the dust collecting lid 9 and the opening/closing lid 61 are opened, and the covered body 80 is inserted into the relief parts 70 and 71 of the pivot arms 62 and 63, Opening of the lid body 9 and the opening/closing lid 61 is not obstructed. In this point, the pivot arms 62 and 63 are
The same holds true even if it is letter-shaped, and the inside of the L-shape becomes the relief part. When the dust collecting lid 9 and the opening/closing lid 61 are about to be opened further from the normal opening position shown by the dashed line in FIG. The plate member 80 comes into contact with the plate member 80 and acts in a direction to push up and remove the plate member 80. At this time, since the plate member 80 is removably elastically engaged with the engaging portion 82 of the cover member 32 by the elastic claw piece 81, the engaged state is released and the plate member 80 is moved in the removal direction without being damaged. The plated body 80
is removed from the vacuum cleaner main body 2, and therefore the dust collection lid 9 and the opening/closing lid 61 are rotated a little further in the opening direction from the normal opening position. The excessive force in the opening direction causes the plate member 80 to move in the direction of removal from the vacuum cleaner main body 2, and the dust collecting lid 9 and the opening/closing lid 61 to move further in the opening direction from the normal opening position. The dust collecting lid 9 and the opening/closing lid 61 and their pivot arms 62 and 63 are absorbed by the slight rotational movement of the dust collecting lid 9 and the opening/closing lid 61. It does not break down even in the face of openness. The plate body 80 is located in the recess 5
A dust collection meter 84 connected to a ventilation duct 83 protruding from the center of 3 is also covered.

The dust collecting lid 9 has an uneven bottom surface due to the formation of the housing section 60 for the attachment 3, and a seal plate 90 is provided to make the bottom surface flat.
are fixed with screws 91. The seal plate 90 comes into contact with the airtight gasket 28 of the dust collection case 21 to provide airtightness within the dust collection chamber 4. Between the seal plate 90 and the front part of the dust collecting lid 9, there is a first locking body 92 for locking the dust collecting lid 9 and the lower case 7, and a first locking body 92 for locking the opening/closing lid 61 to the dust collecting lid. A second locking body 93 for locking to the body 9 is attached. The first locking body 92 connects the middle pivot 94 to the dust collecting lid 9.
and the seal plate 90. Said first
An engaging portion 96 formed at one end of the locking body 92 engages with a locking portion 95 on the front upper edge of the lower case 7 . The other end side of the first locking body 92 is biased by a spring body 98 interposed between a rib 97 provided inside the dust collection lid body 9. The second locking body 93 is supported so as to be slidable back and forth on a plurality of ribs 99 protruding from the seal plate 90, and the engagement portion 101 that engages and disengages from the locking portion 100 of the opening/closing lid 61 is connected to the assembly. It protrudes from the inner surface of the dust cover body 9. On both sides of the second locking body 93, there are protrusions 1 whose upper surfaces are sloped surfaces 102 that descend backwards.
03 is formed. An operation button 105 having an inclined surface 104 that contacts the inclined surface 102 is fitted into the second locking body 93, and the operation button 105 has an inclined surface 104 that contacts the inclined surface 102.
5 protrudes from the opening 106 of the dust collecting lid 9.
The opening 106 is provided on both sides of the operation button 105.
A protrusion 107 is formed that comes into contact with the inner edge to prevent it from popping out. By pressing the operation button 105, the second locking body 93 moves forward while being guided by the slopes 102 and 104, and the second locking body 93 moves forward to lock the locking portion 10.
0 is disengaged. A spring body 108 is interposed between the second locking body 93 and the rib 97.
The locking body 93 is urged in the engagement direction and the operation button 105 is pushed up. Both sides of the rib 97 are pressed by the spring bodies 98 and 108, thereby preventing deflection in one direction, preventing deformation due to long-term use, and making the spring body 9 stable.
8, 108;
The force relationship when the second locking body 93 is engaged with the respective engaging portions 96, 101 can be set in various ways, and it is convenient to set them to the same degree in terms of operation.

Note that the present invention is not limited to the above-described implementation structure, and various configurations are possible regarding the shape of the dust collection lid, the shape of the pivot arm, and the arrangement of each part. For example, the plate body 80 is engaged and detached using an elastic claw piece 81 with a claw protruding outward, but various other methods are possible, such as a head-sized protrusion at the tip may be press-fitted. be.

(G) Effect of the invention The vacuum cleaner of the invention is constructed as described above.
The pivot portion of the pivot arm of the dust collection lid is covered with a cover body that is removably elastically engaged with the upper surface of the storage chamber of the vacuum cleaner main body, and the cover body is in contact with the pivot arm. Since it is designed to move in the removal direction by contact, when excessive force is applied when opening the dust collection lid, the cover body will come off from the vacuum cleaner body and the cover body will move in the removal direction. The force is absorbed by the rotational movement of the dust collection lid in the opening direction as the dust collection lid moves, and the dust collection lid and the vacuum cleaner body are not damaged. It has the advantage that it can be easily repaired by simply engaging elastically with the upper surface of the storage chamber of the main body.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of the dust collection lid in the open state, Figure 2 is a perspective view, Figure 3 is a perspective view of the dust collection lid in the open state, Figure 4 is a perspective view of the lid being opened, and Figure 5. is a cross-sectional view, Figure 6 is a cross-sectional view taken at the pivot part of the dust collection lid body, Figure 7 is a cross-sectional view of the opening/closing lid in the open state, Figure 8 is an exploded perspective view of the pivot part, and Figure 9 is the cover. FIG. 10 is a plan view of the pivot portion with the plate removed, FIG. 10 is a plan view of the pivot portion with the dust collection lid removed, FIG. 11 is an explanatory diagram showing opening and closing of the dust collection lid, and FIG. 12 is the dust collection lid. Fig. 13 is a sectional view of the dust collecting cover and the locking part of the opening/closing cover, Fig. 14 is a sectional view of the same in the released state, and Fig. 15 is a sectional view of the second locking part. An exploded perspective view of the stopper and the operation button, FIG. 16 is a cross-sectional view of the second stopper,
FIG. 17 is a cross-sectional view of the opening/closing lid pivot portion in a closed state;
FIG. 18 is a sectional view of the same in the open state, FIG. 19 is a sectional view of the control switch portion, and FIG. 20 is an exploded perspective view of the same. 2... Vacuum cleaner body, 4... Dust collection chamber, 6...
Storage chamber, 9... Dust collection lid body, 62... Pivotal support arm body, 8
0... Covered body.

Claims (1)

[Scope of utility model registration request] A dust collection chamber is formed on the front half side of the vacuum cleaner body, a storage chamber for an electric blower is formed on the other half side, and the upper wall of the dust collection chamber is attached to a pivot arm extending onto the upper surface of the storage chamber. a cover plate formed of a dust collection lid that can be opened and closed and pivoted by the storage chamber; A vacuum cleaner whose body is removably elastically engaged.