JPH0350855Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a vacuum cleaner with an improved structure for maintaining the closed state of the removable lid that opens and closes the top opening of the dust collection chamber formed in the main body case. Regarding.

[Conventional technology]

A removable and insertable lid for opening and closing the top opening of the dust collection chamber provided in the main body case is known from Japanese Utility Model Publication No. 58-77652.

This item has mounting legs protruding from the rear end of the lid.
After inserting the lid from the front into the lid mounting hole of the main body case located at the rear of the dust collection chamber, rotate the lid downward around this mounting hole to close the lid. The lid is removed from the main case by rotating it upward and pulling it forward.

The plug-in type lid is held in the closed state by a lid clamp mechanism consisting of an engaging piece protruding from the inner surface of the front part of the lid and an engaging piece receiver formed on the front of the main body case. At the same time, the engaging piece engages with the engaging piece receiver to hold the lid in the closed state. In this lid closed state, the lower end of the annular seal projecting wall protruding from the inner surface of the lid comes into contact with the sealing surface that borders the upper opening of the dust collection chamber, thereby ensuring airtightness of the dust collection chamber.

The above-mentioned publication does not describe any means for preventing the insert-type lid from shifting forward, and the closed state of the lid is maintained only by engagement of the lid clamp mechanism. Moreover, the lid-side engaging piece of the lid clamp mechanism is configured to engage and disengage from the front side of the engaging piece receiver on the main body case side of the mechanism.

[The problem that the idea attempts to solve]

By the way, when the front end of the main body case of the vacuum cleaner collides with furniture or the like while the vacuum cleaner is being used, an external force acts forward on the lid.

When such an external force acts on the lid in the closed state, the engaging piece located on the front side of the engaging piece receiver of the lid clamping mechanism tends to move forward away from the engaging piece, and this lid clamping mechanism cannot stop the lid from moving forward. Therefore, there is a high possibility that the plug-in lid will shift forward due to the external force.

Then, due to this displacement movement, the annular sealing wall of the lid comes off from the sealing surface, and the airtightness of the dust collection chamber due to the lid is impaired during use, leading to a problem that the suction performance through the suction port deteriorates. . Further, as the lid shifts forward, the gasket between the annular seal protrusion and the sealing surface may be rolled up or twisted, which also impairs the airtightness of the dust collection chamber.

An object of the present invention is to provide a vacuum cleaner that can maintain airtightness of the top opening of the dust collection chamber with a detachable plug-in lid with high reliability and prevent damage to the lid clamp mechanism.

[Means for Solving the Problems] In order to achieve the above object, the vacuum cleaner of the present invention is provided with a dust collection chamber with an opening on the top surface at the front part, and an annular seal that borders the opening on the top surface of the dust collection chamber. a main body case having a surface and a lid attachment hole rearward from the dust collection chamber, and an annular case having a handle at the front and being pressed into contact with the annular seal surface on the inner surface via a packing. In addition to having a seal projecting wall of
A removable lid is provided with a mounting leg protruding from the rear portion that is removably inserted into the lid mounting hole from the front side, and opens and closes the upper surface opening of the dust collection chamber by rotating around the lid mounting hole as a fulcrum. , a vacuum cleaner comprising a filter that can be freely taken in and taken out of the dust collection chamber, and a lid clamp mechanism that holds the lid in a closed state and is located inside the outer shape of the lid in the closed state. The lid clamp mechanism includes an elastically deformable engagement piece integrally protruding from the front inner surface of the lid, and an engagement piece protruding from the front upper surface of the main body case with which the engagement piece is engaged and released. It is formed from a joint piece receiver, and when the lid is closed, the engaging piece receiver is located on the front side of the engaging piece, and the engaging piece that is engaged with the engaging piece receiver is located on the rear side thereof, and , a stopper part is integrally provided on the front upper surface of the main body case at a position removed from the engagement piece receiver, and an abutment part that engages and disengages from the rear side of the stopper surface of the stopper part as the lid is opened and closed. is integrally provided on the front inner surface of the lid.

[Effect]

According to the present invention, when the lid is closed, the engaging piece receiver of the lid clamp mechanism is located in front of the engaging piece that engages and disengages from the rear side, so that it can be attached to the removable insert-type lid forward. To prevent the lid from inadvertently moving forward when an external force for movement is applied. Moreover, when the lid is closed, the abutment part of the lid engages with the stopper surface of the stopper part of the main case from the rear side, so this engagement also prevents the detachable plug-in lid from moving forward. prevent movement. The engaging piece is elastically deformable in order to be attached to and removed from the engaging piece receiver when the lid is opened and closed, but as described above, when an external force is applied to the lid to move it forward while the lid is closed, Since the engaging piece does not move forward inadvertently, the engaging piece does not undergo excessive elastic deformation when the external force is applied.

〔Example〕

Reference numeral 11 in FIGS. 1 to 7 showing one embodiment is a main body case, which is a lower case 12 with an upper opening.
An upper case 13 is placed over the rear upper surface of the dust collector, and a dust collection chamber 14 is provided in the front part. The lower case 12 has a suction port body 16 having a suction port 15 at its front end.
and a cover plate 17 that covers the upper and rear surfaces of the mouth body 16. moreover,
A caster 18 is attached to the lower front surface of the lower case 12, and a pair of left and right wheels 19 are attached to the rear portion. Moreover, the main body case 11
A fan motor 20, a cord reel 21, etc. are built into the rear part of the motor.

In addition, in the figure, 22 is a silencer tube, 23 is a dust indicator, 24 is a handle that can be raised and folded, 25 is a recess for storing the handle, 26 is a power plug, 27 is a knob for unlocking the cord reel 21, and 28 and 29 are A protruding leg 30 is used to place the main body case 11 upright, and numeral 30 indicates an exhaust port. Also, 31
32 is a suction port formed in the partition plate 12a of the lower case 12 that partitions the dust collection chamber 14, and 32 is a rubber suction port sandwiched between the suction port body 16 and the cover plate 17 surrounding the suction port 15. The valve 33 is a filter clamp attached to the cover plate 17.

An engagement piece receiver 34 is protruded from the upper surface of the cover plate 17 of the main body case 11. The engagement piece receiver 34 of this embodiment has a U-shaped portion 34a on the back side of the dust collection chamber 14 that prevents finger insertion when the lid is opened. (see figure), and the engagement convex portion 34b has a tapered tip.
It is formed by integrally protruding. Furthermore, a stopper portion 35 is integrally provided on the upper surface of the cover plate 17 at a position away from the engagement piece receiver 34. In this embodiment, the stopper part 35 is formed of a convex part that is located on both sides of the engagement piece receiver 34 and protrudes integrally, and the stopper part 35 is formed of a convex part located on both sides of the engagement piece receiver 34, and the stopper part 35 is formed of a convex part on the side of the dust collection chamber 14. The stopper surface 35a rising from the upper surface of the cover plate 17 is formed as an inclined surface that approaches the dust collection chamber 14 as it goes downward.

In the structure of the main body case 11, the upper surface of the fitting part 36 that extends forward from the lower end of the front side wall of the upper case 13 and is fitted to the upper edge of the partition plate 12a, and the upper end surface of the dust collection chamber 14; The top surface of the cover plate 17 is flush with the top surface of the cover plate 17, and these surfaces form an annular sealing surface that frames the top opening of the dust collection chamber 14.

A bag-shaped front filter 37 is provided in the dust collection chamber 14.
is stored and can be taken out and put in freely. This filter 37 is of a disposable type and is made by attaching a breathable paper bag to a mouth frame plate, and is detachably attached to the rear end of the suction port 15 and held by a filter clamp 33. The mouth frame portion is brought into close contact with the seal portion 32a. moreover,
A rear filter 38 is attached to the dust collection chamber 14 so as to be located on the rear side of the front filter 37. In other words, the rear filter 38 is attached to the front surface of the partition plate 12a so as to cover the intake port 31 by removably engaging the attachment portions 40 in upper and lower attachment holes 39 provided in the partition plate 12a. After this, the filter 38 is fitted with a sponge-like filter element 42 inside the filter frame 41 having a support part 41 and a tangle part.
It stores at least one sheet of paper and is approximately plate-shaped.

Further, in the front part of the upper case 13 located on the rear side of the dust collection chamber 14, a pair of left and right lid mounting holes 43 are formed as shown in FIGS. 2 and 3.
A lid 44 that rotates around a lid attachment hole 43 is detachably attached to the main body case 11. As shown in FIGS. 5 and 6, the lid 44
A mounting leg 45 that can be inserted into and removed from the lid mounting hole 43 projects from the rear end. Furthermore, Figures 4 to 6
As shown in the figure, a handle 46 into which a finger can be inserted from the bottom side is provided on the front part of the lid 44, and a partition wall 44 is formed so as to partition this handle 46.
7 is integrally provided. The partition wall 47 has an elastically deformable engagement piece 49 in which an engagement hole 48 is formed to be engaged with and disengaged from the engagement protrusion 34b of the engagement piece receiver 34. The engagement piece 49 and the engagement piece receiver 34 form a lid clamp mechanism that holds the lid 44 in a closed state.

The lid 44 has its mounting legs 45 inserted into the lid mounting holes 43.
By rotating the hole 43 and pushing it down, the engagement hole 48 of the engagement piece 49 is engaged with the engagement convex portion 34b from the rear side of the engagement piece receiver 34. The dust collection chamber 14 is attached to the main body case 11 with its upper opening closed. Lid 4
An annular seal projecting wall 51 is integrally provided on the inner surface of the seal member 4 and has a rubber gasket 50 attached to the tip thereof to press against the seal surface. Furthermore, the stopper surface 3 of the stopper part 35 is provided on the inner surface of the front part of the lid 44.
A contact portion 52 that is engaged and detached from the rear side is integrally provided on 5a. Note that in this embodiment, the contact portion 52
The figure shows a case in which the sealing wall 51 is formed into a rib shape and is integrally provided on the front surface of the seal projecting wall 51. The engagement between the stopper part 35 and the contact part 52 in the closed state prevents the lid 44 from moving forward based on the elastic deformation of the engaging piece 49 when the lid is closed, and prevents the lid 44 from moving forward in the closed state. The lid 44 is prevented from coming off against the tensile force in the direction.

In addition, 53 in FIGS. 1 and 3 is an attachment holder provided as necessary, and an attachment A for cleaning the space is detachably fitted and supported in the mounting portion 54 of this holder 53. A round brush B is detachably fitted and supported in the other attachment portion 55. Further, numeral 56 in FIG. 2 is a screw that connects the lower case 12 and the upper case 13.

When the fan motor 20 of the vacuum cleaner configured as described above is operated, the rear surface of the paper bag of the front filter 37 that expands in the dust collection chamber 14 due to the sucked air etc. is moved from the bottom side to the rear filter 38 as shown in FIG. The filter 38 is supported in surface contact with the lower part of the filter 38, and the upper part of the filter 38 is supported on the distal end side of a support portion 41a provided on the filter 38 after being attached to the main body case 11. As a result, the upper rear side of the front filter 37 is separated from the upper side of the rear filter 38 by forming a distance X, and the tip is provided at a lower position than the upper surface position of the front filter 37 during use. A large space Y is formed between the rear side portion 51a of the seal projecting wall 51 and is opposed to this portion 51a. Then, the dust contained in the sucked air is captured by the front filter 37 and the rear filter 38 one after another.

To open the lid 44 for replacing the front filter 37, etc., the lid 44 is rotated upward around the engagement portion between the mounting leg 45 at the rear end and the lid mounting hole 43. By inserting your hand into the handle 46 provided at the front of the lid 44 and pulling it up, the engaging piece 49 is elastically deformed and removed from the engaging piece receiver 34, and at the same time, the abutting part 52 is moved to the stopper part. 35, then move the entire lid 44 forward and remove the mounting leg 45 from the lid mounting hole 43. That is, as described above, the lid 44 can be removed from the main body case 11 to open the top opening of the dust collection chamber 14. The rear portion 51a of the seal protruding wall 51 when the lid is opened moves within the space Y, so that it is prevented from being caught on the upper rear surface of the front filter 37, and the lid 44 is not moved between the front filter 3
It can be opened without being obstructed by 7.

To close the lid 44, the mounting legs 45 are inserted diagonally from above into the lid mounting hole 43, and then the lid 44 is rotated downward about these engaging portions. Then, the engagement piece 49 engages with the engagement piece receiver 34 while being elastically deformed, and the contact portion 5
2 engages with the stopper surface 35a of the stopper part 35 on the side of the dust collection chamber 14, and the seal 50 provided at the tip of the seal projecting wall 51 comes into pressure contact with the seal surface that borders the cotton opening of the dust collection chamber 14. . That is, the top opening of the dust collection chamber 4 is airtightly closed as described above, and the lid 4 is closed.
4 can be attached to the main body case 11.

In such an attached state of the lid 44, the lid 4
An engagement piece 49 and an engagement piece receiver 3 provided on the main body case 11 and the lid 44 to maintain the closed state of the case 4
4. The contact portion 52 and the stopper portion 35 are both located inside the lid 44 and covered by the lid 44, so that they are not exposed to the outside. Therefore, the overall appearance of the vacuum cleaner can be improved.

Moreover, the engagement piece 49 is
It is possible to prevent an erroneous operation of removing the engagement piece from the engagement piece receiver 34 and the application of such external force. In the closed state, the engaging piece 49 of the lid 44 is elastically deformable.
is engaged with the engagement piece receiver 34 from the rear side, so the engagement piece receiver 3 located on the front side of the engagement piece 49
4 serves as a stopper against inadvertent forward movement of the lid 44. Moreover, in addition to this, when the lid is closed,
Since the contact portion 52 of the lid 44 engages with the stopper surface 35a of the stopper portion 35 of the main body case 11 from the rear side, this engagement can prevent the lid 44 from accidentally moving forward. Therefore, even though the lid 44 is a removable insert type, when an external force that moves the lid 44 forward acts on the lid 44, the lid 44 does not move forward inadvertently. Therefore, the engaging piece 49 will not be excessively elastically deformed by the external force and will not come off the engaging piece receiver 34, and the lid 44 can be held in a predetermined closed position. The lid 44 can keep the dust collection chamber 14 airtight.

Moreover, since the lid 44 does not inadvertently shift forward due to a forward external force, the seal width required between the seal surface and the seal projection wall 51 may be small, and the seal can be formed easily. Patsukin 50
There is little possibility that the dust collection chamber 14 will be turned over or twisted, and therefore the airtightness of the dust collection chamber 14 will not be impaired during long-term use.

Furthermore, as described above, the lid 44 in the closed state does not accidentally shift forward due to the stopper portion 35, and the elastically deformable engagement piece 49 does not deform excessively accordingly. Damage to the joint piece 49 can also be prevented.

Further, the engaging piece 49 and the engaging piece receiver 34, which are engaged to maintain the closed state of the lid 44, and the abutting part 52 and the stopper part 35 are all integrally provided on the lid 44 or the main body case 11. Since the structure and assembly are simple, the structure and assembly are simple.

Although the above-described embodiment is configured as described above, in implementing the present invention, the main body case,
The specific structure, shape, position, etc. of the lid, seal projecting wall, dust collection chamber, filter, handle, mounting leg, engaging piece, engaging piece receiver, stopper part, contact part, lid mounting hole, gasket, etc. Of course, the present invention is not limited to the one embodiment described above, and can be implemented in various ways.

[Effect of idea]

According to the present invention, the gist of which is the configuration described in the scope of the above-mentioned utility model registration claim, the lid clamp mechanism that holds the removable insert-type lid in a closed state has an engaging piece receptacle on the main body case side from the rear side. By engaging and disengaging the elastically deformable lid-side engaging piece of the same mechanism, the engaging piece receiver is used to stop the lid from moving forward in the closed state, and the abutment part provided on the lid is used to close the lid. In this state, the stopper surface of the stopper part provided on the main body case is engaged from the rear side to prevent the lid from moving forward when the lid is closed.
This prevents the lid from inadvertently shifting forward due to external force applied to the front during use.
The air-tightness of the upper opening of the dust collection chamber is highly reliable, and the elastically deformable engaging piece can be prevented from being excessively deformed and damaged.

[Brief explanation of drawings]

1 to 7 show an embodiment of the present invention,
Fig. 1 is a partially sectional side view, Fig. 2 is a partially sectional plan view, Fig. 3 is an exploded perspective view, Fig. 4 is a perspective view showing the front part of the main body case, and Fig. 5 is a partially sectional side view. A back view of the lid, Figure 6 is a sectional view taken along the line - in Figure 5,
FIG. 7 is a perspective view showing a portion of the lid turned over. 11... Main body case, 14... Dust collection chamber, 34...
...Engagement piece receiver, 35...Stopper part, 35a...
Stopper surface of stopper part, 37... front filter,
38... Rear filter, 43... Lid attachment hole, 44
... Lid, 45 ... Mounting leg, 49 ... Engagement piece, 5
1... Seal projecting wall, 52... Contact portion.

Claims (1)

[Scope of Claim for Utility Model Registration] A dust collection chamber with a top opening is provided in the front part, and an annular sealing surface borders the top opening of the dust collection chamber, and a lid is provided at the rear of the dust collection chamber. It has a main body case with a mounting hole, a handle on the front part, an annular seal protrusion on the inner surface that is pressed into contact with the annular seal surface via a packing, and a rear part with a handle in the lid mounting hole. A removable lid that opens and closes the top opening of the dust collection chamber by rotating around the lid mounting hole, which has a protruding mounting leg that is removably inserted from the front side; and a lid clamp mechanism that holds the lid in a closed state and is located inside the outer shape of the lid in the closed state, wherein the lid clamp mechanism is configured as described above. The lid includes an elastically deformable engagement piece integrally protruding from the front inner surface of the lid, and an engagement piece receiver protruding from the front upper surface of the main body case through which the engagement piece is engaged and released. In the lid state, the engagement piece receiver is positioned on the front side of the engagement piece, and the engagement piece engaged with the engagement piece receiver is positioned on the rear side thereof, and the front upper surface of the main body case is A stopper part is integrally provided at a position separated from the engagement piece receiver, and an abutment part is provided on the inner surface of the front part of the lid that engages and disengages from the rear side of the stopper surface as the lid is opened and closed. A vacuum cleaner characterized by being integrated.