JP3136728B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner having an attachment storage section such as a clearance nozzle in a vacuum cleaner body.

[0002]

2. Description of the Related Art In recent years, in order to clean a narrow place or a high place in a house, a vacuum cleaner is often used standing on a floor or the like. Also, when storing the vacuum cleaner, it is often the case that the vacuum cleaner is stored upright to save storage space.

Conventionally, this type of vacuum cleaner has been disclosed in
As shown in such 82853 JP, or accommodated crevice above the rear vacuum cleaner, it is configured for accommodating a crevice in the dust collecting chamber upwardly as shown in FIG. 5 was common.

As shown in FIG. 5, a lower body 21 forms a dust collection chamber 23 which is open at the front side and houses a dust collection bag 22 at the front side, and a dust suction motor 24 and the like are provided at the rear. Have been. A roller 25 for movement is attached to the rear side surface of the lower body 21 and a caster roller 26 is attached to the bottom surface of the front part. The rear opening of the lower body 21 is covered by an upper body 27 integrally connected to the lower body 21 by screwing or the like. The cover 28 covers the upper opening of the dust collection chamber 23 at the front of the lower body 21,
A recess 30 which is rotatably mounted on the main body 27 and accommodates an attachment 29 such as a gap nozzle on its upper surface.
Is formed above the dust collection chamber. The handle 31 is rotatable about a rotation center formed on the main body 27, and is used when carrying a vacuum cleaner main body (hereinafter, referred to as a main body). Front cover 32
1 is provided with a connection port 33 fixed by screws or the like, to which a hose (not shown) can be detachably attached.
A storage lid 34 that covers a storage portion of the attachment 29 is rotatably mounted on the main body 27 above the recess 30. A latch 35 for fixing the storage lid 34 to the lid 28 when the storage lid 34 is closed is attached to the tip of the storage lid 34.

A conventional example in which the main body is held substantially vertically during use or storage is disclosed in Japanese Utility Model Laid-Open No. 2-597.
Configurations such as 52 are common.

As shown in FIG. 6, a dust collection chamber 23 is formed at the front of the main body and opens upward, and a motor 2 for sucking dust is formed at the rear.
A roller 25 for movement is attached to the rear side surface of the lower body 21 that is configured to dispose 4 and the like, and a caster roller 26 is attached to the bottom surface of the front. The rear opening of the lower body 21 is covered by an upper body 27 integrally connected to the lower body 21 by screwing or the like. A lid 28 that covers the upper opening of the dust collection chamber 23 at the front of the lower body 21 is rotatably mounted on the upper body 27. Rear lid 3
Reference numeral 6 is provided at the rear of the main body, and has an exhaust grill 37 at the lower part and a convex part 38 projecting rearward at the upper part.
As shown in FIG. 6, the convex portion 38 of the rear lid 36 supports the main body together with the roller 25 so that the main body stands substantially upright when the main body is erected, and forms a gap 39 so that the exhaust gas flows through the exhaust grid 37. Further, as an example in which a convex portion 38 is provided rearward for supporting the main body substantially upright without using the rear lid 36, a rib formed as shown in FIG. 7 is generally used.

[0007]

However, in such a conventional configuration, when the attachment 29 is housed in the main body, a storage lid 34 that covers the upper part of the attachment 29 is required, so that the number of parts increases and the cost increases. Be up. Further, the reduction in weight and size has been hindered. Further, since a recess 30 for accommodating the attachment 29 is formed in the lid 28 above the dust collection chamber 23,
There was a problem that the capacity of the dust collection chamber 23 was reduced.

Furthermore, when the main body is used or stored when the main body is set up, it is necessary to form the floor grounding side of the convex portion 38 for holding the main body substantially vertically. A separate member is required. When the separate member is not used, as shown in FIG. 7, it can be constituted only by the ribs in relation to the direction of pulling out the mold at the time of molding. In this case, there is a possibility that an expensive floor surface such as a cypress floor may be damaged, and there is a problem that the external design of the vacuum cleaner is impaired and it becomes hard to see.

The present invention has been made to solve the above-mentioned problems. The present invention aims to reduce the number of parts, reduce the cost, reduce the weight and size of the main body, and eliminate the need for a separate member such as the rear lid 36. It is an object of the present invention to provide a vacuum cleaner which does not damage the floor surface and has an improved external design by forming the floor grounding side of the convex portion 38 with a surface.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a main body having a dust collecting chamber for accumulating dust in a front part, a storage chamber for accommodating a motor and the like in a rear part, and the dust collecting chamber. A lid that covers the upper part of the chamber, and a box-shaped protrusion provided at the rear of the main body, the rear wall protruding from the rear surface of the main body, and having an upper opening, and a gap nozzle or the like is provided in the box-shaped protrusion. And a rotatable handle is disposed so as to cover the opening of the box-shaped protrusion, and when the main body is erected, the rear wall and the floor of the protrusion are flush with each other. The contact is made.

An exhaust port is provided on the rear surface of the main body, and a substantially central portion of the rear wall of the convex portion is retracted forward to form a concave portion.

A projection is formed on the inner surface of the projection to engage with the outer shape of the attachment housed in the box-shaped projection, and the projection is engaged with the inner surface of a handle covering the opening above the projection. It is what was constituted.

[0013]

According to this configuration, when the main body is used upright,
By forming the convex part whose rear wall protrudes from the rear surface of the main body in the shape of a box with the upper part opened at the rear part of the main body, the rear wall and the floor surface come into surface contact without using a separate member as in the related art. ,
Does not scratch the floor. In addition, by disposing a part of the handle that is rotatable upward so as to cover the opening of the projection, the opening of the projection is not closed and the design is not spoiled. Furthermore, by housing an attachment such as a gap nozzle in the box-shaped projection, the box-shaped recess can be used as a storage part for the attachment, and a separate body such as a storage lid can be eliminated, thereby reducing the number of parts and cost. It is possible to reduce the size, weight, and size.

In addition, by recessing the substantially central portion of the rear wall of the convex portion formed above the rear portion of the main body forward to form a concave portion, the ventilation of exhaust gas discharged from the exhaust grid when the main body is used upright is cut off. The area is increased, preventing the exhaust heat from being trapped in the main body, and the concave portion is formed at the lower part of the handle, so that it can also be used as a portion for catching a finger at the time of turning the handle, thereby improving usability. .

Further, a projection is formed on the inner surface of the projection to engage with the outer shape of the attachment housed in the box-shaped projection, and the projection is engaged with the inner surface of the handle covering the opening above the projection. With this configuration, the stored attachment is securely fixed, and when the handle is stored, the protruding portion engages with the inner surface of the handle and is temporarily fixed to prevent rattle of the handle and improve usability. At the same time, noise can be reduced by preventing resonance with vibration of a motor or the like. Also,
Damage to the handle and shavings due to the temporary fixation are generated on the inner surface of the handle, and the appearance can be improved without appearing in the appearance.

[0016]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 and 2 show the structure of a vacuum cleaner according to this embodiment. As shown in the figure, a lower part 1 of the main body forms a dust collecting chamber 2 which is opened upward at a front part, and a motor 3 for dust suction is formed at a rear part.
A roller 4 for movement is attached to a rear side surface of the lower portion 1 of the main body, and a caster roller 5 is attached to a bottom surface of the front portion. The upper opening of the lower body 1 incorporating the motor 3 and the like is covered by an upper body 6 integrally connected to the lower body 1 by screwing or the like. The front cover 7 has a connection port 8 for connecting a hose, and is integrally fixed to the lower part 1 of the main body by screwing or the like. The lid 9 is rotatably mounted on the main body 6 so as to cover the upper opening of the dust collection chamber 2 and is used when attaching and detaching the dust collection bag 10 which is detachably disposed in the dust collection chamber 2. Can be As shown in FIG. 2, a substantially U-shaped handle 11 having a rotation axis near the center of gravity of the main body is rotatably mounted on the upper side surface of the upper body 6, and a part of the outer shell of the main body is attached. Make up. An exhaust grid 12 for exhausting exhaust gas from the motor 3 is formed at a rear portion of the upper body 6, and a convex portion 13 protruding rearward to about the same extent as the roller 4 is formed at an upper portion. The protruding portion 13 is formed in a box shape with an open top, and a gap nozzle 15 is housed in the opening 14, and a grip portion of the handle 11 is arranged so as to cover above the opening 14. I have.

Next, the operation of the electric vacuum cleaner having the above configuration will be described. When standing up for use or storage,
The main body is supported substantially vertically by the rear wall 13a of the roller 4 and the convex portion 13 formed at the rear of the upper body 6. Convex part 1
3 is formed in a box shape having an opening 14 at the top, so that the gap nozzle 15 can be housed and the floor surface 16 is formed.
The floor 16 is hardly damaged because the rear wall 13a that contacts the ground can be formed with a surface.

FIG. 3 shows the configuration of a vacuum cleaner according to a second embodiment of the present invention. As shown in the figure, the concave portion 17 is formed by retracting the substantially center of the rear wall 13a of the convex portion 3 formed at the rear portion of the upper body 6 from both ends. With this configuration,
When the main body of the vacuum cleaner is set up, both ends of the rear wall 13 a of the convex portion 13 at the rear of the main body abut on the floor surface 16, and the concave portion 17 serves as a flow path for exhaust gas discharged from the exhaust grid 12. With this configuration, the exhaust area can be increased, and heat generated by the exhaust can be prevented from being trapped in the main body. Further, since the concave portion 17 is formed at the lower part of the grip portion of the handle 11, it can also be used as a portion for catching a finger when the handle 11 rotates, thereby improving usability.

FIG. 4 shows the configuration of a vacuum cleaner according to a third embodiment of the present invention. As shown in FIG. 4, a rib 18 is formed in the opening 14 of the box-shaped projection 13 so as to engage with the outer shape of the gap nozzle 15 and to engage with the inner surface of the handle 11. The rib 18 ensures the fixing of the gap nozzle 15 during storage, and the handle 11 is engaged and temporarily fixed to prevent rattling of the handle 11 during use of the vacuum cleaner. Noise can be reduced by preventing resonance with vibration.

[0021]

According to the present invention, the following effects can be obtained as is apparent from the above description of the embodiment. (1) A box-shaped projection provided at a rear portion of the main body, the rear wall protruding from the rear surface of the main body, and having an open upper side, and an attachment such as a gap nozzle is housed in the box-shaped projection. A rotatable handle is disposed so as to cover the opening of the box-shaped projection, and furthermore, when the main body is erected, the rear wall of the projection is in surface contact with the floor surface. Thus, it is possible to prevent the rear wall of the convex portion from coming into surface contact with the floor surface when the main body is erected without using a separate member, thereby preventing the floor surface from being damaged. Also,
Since a storage portion for an attachment such as a gap nozzle can be formed without using another member, the number of parts can be reduced, and cost reduction, weight reduction, and downsizing of the main body can be achieved. Furthermore, by forming the convex portion in a box shape having an opening above, the strength of the convex portion can be increased, and a buffering effect can be exhibited by having elasticity. (2) By retracting the substantially central portion of the rear wall of the convex portion formed on the rear surface of the vacuum cleaner body forward to form a concave portion,
The area for exhausting the exhaust gas from the exhaust port when the main body is set up can be increased, and at the same time, the handle can be used as a hook portion when the handle is inverted so that the usability can be improved. (3) A projection is formed in the opening of the projection, and the projection is formed so as to engage with the external shape of the attachment such as the gap nozzle housed therein and to engage with the mating component so as to engage with the inner surface of the handle. According to this configuration, the strength of the protrusion can be increased, and the handle is temporarily fixed in the housed state to prevent rattle of the handle during use of the vacuum cleaner, thereby improving usability. Further, the noise of the motor can be reduced by preventing the vibration of the motor and the resonance of the attachment. Furthermore, because the handle is scratched and shavings are generated on the inner surface of the handle due to temporary fixing, the appearance can be maintained for a long time without damaging the appearance, and the handle part forms a part of the outer shell of the main body Is improved.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a configuration of a vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway sectional view showing a configuration of the electric vacuum cleaner.

FIG. 3 is a partially cutaway sectional view showing the configuration of the vacuum cleaner of the second embodiment.

FIG. 4 is a sectional view of a main part showing a configuration of the vacuum cleaner of the third embodiment.

FIG. 5 is a side sectional view showing a configuration of a conventional vacuum cleaner.

FIG. 6 is a partially cutaway sectional view showing a configuration of the electric vacuum cleaner.

FIG. 7 is a rear view showing the configuration of the electric vacuum cleaner.

[Explanation of symbols]

 Reference Signs List 4 Roller 6 Upper body 11 Handle 12 Exhaust grating 13 Convex part 14 Opening part 15 Gap nozzle 16 Floor surface 17 Concave part 18 Rib

Claims (3)

(57) [Claims] 1. A main body having a dust collecting chamber for accumulating dust in a front part, a storage chamber for storing a motor and the like in a rear part, a lid covering an upper part of the dust collecting chamber, and a rear part of the main body, A rear wall protrudes from the rear surface of the main body, and has a box-shaped protrusion that is open at the top, and an attachment such as a gap nozzle is housed in the box-shaped protrusion. A vacuum cleaner having a rotatable handle disposed so as to cover the opening, and wherein the rear wall of the projection is in surface contact with the floor when the main body is erected. 2. The vacuum cleaner according to claim 1, wherein an exhaust port is provided on a rear surface of the main body, and a concave portion is formed by retracting a substantially central portion of a rear wall of the convex portion forward. 3. A projection formed on an inner surface of the projection, the projection being engaged with an outer shape of an attachment housed in the box-shaped projection, and the projection is engaged with an inner surface of a handle covering an opening above the projection. The vacuum cleaner according to claim 1 or 2, wherein