JP2008073405A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the attachment and detachment of a dust bag while preventing wrong use due to nonattachment of the dust bag. <P>SOLUTION: The vacuum cleaner having the dust bag 13 and a lid 10 rotatably covering the upper portion of a dust chamber 3, is provided with a dust bag sensor 16 installed in the lid 10 having a protuberance portion 16B preventing the lid 10 from getting into a closed condition at the time when the dust bag 13 is not mounted in the dust chamber 3 and a sensing portion 16A sensing the mounting of the dust bag 13 in the dust chamber 3. When sensing the mounting of the dust bag 13, the protuberance portion 16B moves to the position where the lid 10 gets into a closed condition. The vacuum cleaner has a projecting member 19 having a projection allowance (L2) smaller than a projection allowance (L1) to a dust chamber 3 side of a packing B18 of a tightener 6 above an air inlet 2. Consequently, with the dust bag 13 not mounted, the lid 10 doses not close and can prevent a misuse, the projecting member 19 guides the mouth frame 12 of the dust bag 13 during insertion and positions forward, allowing the dust bag 13 to be attached and detached by one operation and facilitating its attachment or detachment. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner that facilitates the operation of attaching and removing a dust bag from a dust collection chamber.

A conventional electric vacuum cleaner is a main body of a vacuum cleaner having an air inlet at a front portion, and forms a dust collection chamber and an electric blower housing chamber incorporating an electric blower. In the dust collection chamber, ribs are provided on the bottom surface of the dust collection chamber, or in order to fix the left and right sides of the mouth frame, a box-shaped rib from the bottom of the dust collection chamber to a height near the open portion of the dust collection chamber And the mouth frame of the dust bag is temporarily fixed to the dust chamber. Next, the upper end portion of the mouth frame is fixed by a mouth frame presser rotatably fixed to the dust collecting chamber (see, for example, Patent Document 1). Such vacuum cleaners have been added with a function to prevent misuse by preventing the lid from closing when the lid is closed when the dust bag is not installed in the dust collection chamber. It is done.
Japanese Patent No. 3424154

  However, in the above configuration, the one having the above-mentioned mouth frame presser requires two operations of inserting the mouth frame after rotating the mouth frame presser in order to attach and detach the dust bag. The bag was not removable.

  In addition, when the mouth frame retainer is located at the upper part of the mouth frame, the mouth frame retainer becomes an obstacle when the dust bag is inserted, and the positioning rib that determines the position of the dust bag from above and the intake port Since it is hidden by the mouth frame presser and difficult to see, the user has attached the dust collection bag by feeling. For this reason, erroneous insertion has occurred, the air intake hole and the air intake port are displaced, which causes dust leakage, which causes the failure of the electric blower and the vacuum cleaner. In addition, when taking out the dust bag, which is full of dust, the mouth frame retainer gets caught in the air intake hole, making it difficult to remove, and the dust in the dust bag may spill out, which is untrustworthy to the user. The dust that spilled into the dust collection chamber entered the electric blower directly, thereby leading to the breakdown of the vacuum cleaner.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems, and to provide an electric vacuum cleaner that is easy to attach and detach and improves usability while preventing misuse due to unattachment of the dust bag.

  In order to solve the above-described conventional problems, the present invention is attached to a vacuum cleaner body having a dust collection chamber having an intake port and an electric blower storage chamber for storing an electric blower for sucking dust, and is installed in the dust collection chamber. A dust collection bag with a mouth frame having an intake hole corresponding to the intake port of the dust collection chamber, a lid that covers the upper side of the dust collection chamber so as to be openable and closable, and is disposed at the intake port and protrudes toward the dust collection chamber side. A tight body formed of a soft material that abuts the mouth frame of the dust bag when the lid is closed and performs airtight of suction air, and a mouth of the tight body disposed above the tight body The lid has a projection body that is substantially the same as the tight surface of the frame or has an allowance, and the lid is provided with a dust collection bag detection body. The dust collection bag detection body is attached to the dust collection chamber. A dust collection bag is installed in the dust collection chamber and the projection to prevent the lid from closing when it is not closed. And the detection part detects that the dust collection bag is attached to the dust collection chamber, the projection part closes the lid. The vacuum cleaner moves to the position and restricts the position of the mouth frame to the front of the dust collection chamber by the projecting body when inserting the dust collection bag into the dust collection chamber.

  As a result, the lid cannot be closed unless the dust bag is attached, so that misuse due to the dust bag not being attached can be prevented, and the mouth frame can be made to correspond to the air intake when the dust bag is attached. A single operation of mounting in the dust collection chamber is sufficient, and when taking out the dust collection bag, after opening the lid, it is only necessary to hold the mouth frame and pull it out, making it easy to attach and detach the dust collection bag. And prevents the mouth frame from sticking to the tight body disposed at the intake port and prevents the mouth frame from biting into the tight body to prevent the occurrence of dust spillage.

  ADVANTAGE OF THE INVENTION According to this invention, attaching and detaching a dust bag easily while preventing the misuse by the dust bag not mounting | wearing can be provided, and the vacuum cleaner which improved the usability can be provided.

  1st invention is equipped with the vacuum cleaner main body which has the dust collection chamber which has an air inlet, and the electric blower storage chamber which accommodates the electric blower for dust suction | inhalation, The said suction chamber of the said dust collection chamber is mounted | worn in the said dust collection chamber. A dust collection bag with a mouth frame having an intake hole corresponding to the mouth, a lid body that covers the dust collection chamber so as to be openable and closable, and is disposed at the intake port so as to protrude toward the dust collection chamber and close the lid body A tight body formed of a soft material that abuts the mouth frame of the dust collection bag to perform air-tightness of suction air, and a tight surface between the tight body and the mouth frame of the tight body. And a lid that is provided with a dust bag detector, and the dust bag detector is a lid when no dust bag is mounted in the dust chamber. Detects that a dust bag is attached to the dust collection chamber and the protrusion that prevents the dust from being closed And when the detection unit detects that a dust collection bag is attached to the dust collection chamber, the protrusion moves to a position where the lid body is closed, and also collects the dust. When the dust bag is inserted into the dust chamber, the projecting body is used to control the position of the mouth frame to the front of the dust chamber.

  As a result, the lid cannot be closed unless the dust bag is attached, so that misuse due to the dust bag not being attached can be prevented, and the mouth frame can be made to correspond to the air intake when the dust bag is attached. A single operation of mounting in the dust collection chamber is sufficient, and when taking out the dust collection bag, after opening the lid, it is only necessary to hold the mouth frame and pull it out, making it easy to attach and detach the dust collection bag. And prevents the mouth frame from sticking to the tight body disposed at the intake port, and prevents the mouth frame from biting into the tight body to prevent the occurrence of dust spillage.

  2nd invention is set as the structure which the protrusion of 1st invention does not contact | abut the dust collection bag detection body arrangement | positioning position in a closed state, and an arrangement position does not contact in the left-right direction, and a cover is in a closed state Thus, the lid and the dust bag detecting body do not interfere with each other and the lid is surely closed, and the same effect as the first invention can be expected in a space-saving manner.

  According to a third invention, the projecting body of the first or second invention has a double structure, the inside is made of a rigid material, the outside is made of a soft material, and the soft material arranged on the outside By restricting the position of the mouth frame at the time of insertion and deforming the soft material, it is possible to prevent the air tightness of the mouth frame and the tight body from being inhibited by the position restriction by the protruding body.

  According to a fourth aspect of the present invention, the protrusion of the first or second aspect of the invention is formed integrally with a bumper having a lip that performs air tightness between the cleaner body and the lid, and a rigid material is disposed on the inside thereof. Since it has a double structure and the projecting body is formed integrally with the bumper, the number of parts is reduced, the assembly is easy at low cost, and the same effects as those of the third invention can be expected.

  According to a fifth aspect of the present invention, the protrusion of the third or fourth aspect of the present invention has a space between the double structures, and the protrusion to the dust collecting chamber is more difficult to bite into the tight body. While securing the allowance, the deformation of the soft material and the deflection to the space part can sufficiently prevent the air tightness of the mouth frame and the tight body by restricting the position by the protruding body.

  6th invention is the inclined surface A from which the protrusion body of any one invention of 1st-5th invention protrudes gradually to the dust collection chamber side from the upper part of an up-down direction to the substantially center part, and the lower part from the substantially center part Is formed with an inclined surface B that gradually retracts from the dust collecting chamber side, and when the dust bag is inserted, the inclined surface A serves as a guide to the dust collecting chamber of the mouth frame, and collects dust into the dust collecting chamber. The insertion of the bag is further facilitated, and when the dust collection bag is removed from the dust collection chamber, the inclined surface B serves as a guide for removing the mouth frame, and the removal of the dust collection bag from the dust collection chamber is further facilitated. The dust bag can be easily attached and detached.

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

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS. 1-4, 1 is a vacuum cleaner body having a dust collection chamber 3 having an intake port 2 in the front and an electric blower chamber (not shown) having an electric blower (not shown) in the rear. Is provided with a tight body 6 for air tight between the vacuum cleaner main body 1 and the connection pipe 5 of the hose 4. Further, the upper part of the dust collecting chamber 3 is in an open state, and a bumper 9 having a packing A7 around the entire upper end of the open part and having a buffer body 8 made of a soft material is arranged on the front side part of the cleaner body 1. is doing. Reference numeral 10 denotes a lid provided on the upper portion of the vacuum cleaner main body 1 so as to be rotatable about its rear portion as a fulcrum, and covers the upper opening of the dust collecting chamber 3. The lid body 10 has a tight rib 11 that is substantially the same shape as the packing A7 and is in tight contact with the packing A7 when the lid body 10 is in a closed state. A dust collection bag 13 having a mouth frame 12 is detachably mounted in the dust collection chamber 3. The dust bag 13 is inserted into a positioning portion 14 made of ribs or the like located on the left and right sides of the suction port 2 of the dust collection chamber 3 while the suction hole 12A of the mouth frame 12 is opposed to the suction port 2 of the dust collection chamber 3. The lower end of the mouth frame 12 is fitted to and attached to an auxiliary positioning portion 15 such as a rib for determining the front and rear position of the mouth frame 12 on the bottom surface of the dust collecting chamber 3, and the positioning portion 14 and the auxiliary positioning portion 15 Positioning of the mouth frame 12 is performed. It should be noted that there is no mouth frame pressing as described in the conventional example above the positions of the left and right positioning parts 14, and the open state is provided.

  Reference numeral 16 denotes a dust bag detecting body provided on the front inner surface of the lid body 10, which is rotatably attached using ribs provided on the inner surface of the lid body 10 as shown in FIGS. The dust bag detection body 16 has a detection portion 16A on the rear and a projection 16B on the front with the rotation support portion as the center, both of which are integrally formed in the present embodiment. The dust bag detection body 16 constitutes a protrusion 16B at a position where the lid body 10 is not closed, and the detection section is located at a position where the lid body 10 contacts the mouth frame 12 as the lid body 10 is closed. 16A is provided. In addition, the dust bag detecting body 16 is positioned at a position where the protrusion 16B is prevented from being closed by the spring body (elastic body) 17, that is, the position protruding from the tight rib 11 in this embodiment. It is always energized. The dust bag detecting body 16 is a part of the detecting portion 16A that comes into contact with the mouth frame 12 and is provided with an engaging portion 16C that engages with the mouth frame 12. The engaging portion 16C is engaged with the mouth frame 12, the projection 16B is located in the tight rib 11 dust collecting chamber 3 and the biasing force of the spring body 17 is applied to the dust collecting chamber 3. The mouth frame 12 is pressed against the packing B18 formed on the outermost portion of the tight body 6 projecting toward the dust collecting chamber 3 by being urged toward the intake port 2 side of the tight body 6 so as to be in close contact therewith.

  As shown in FIGS. 6 and 7, a projecting body 19 is provided above the air inlet and has a projecting margin (L2) slightly smaller than the projecting margin (L1) of the tight body 6 toward the dust collecting chamber 3 of the packing B18. And has an inclined surface A19A that protrudes from the upper side to the substantially central portion toward the dust collecting chamber 3, and an inclined surface B19B that is recessed from the substantially central portion to the lower side. The protrusions 19 are detachably held on the cleaner body 1 by engaging claws 19 </ b> C formed on both sides thereof with holes 20 </ b> A formed on the holding ribs 20 formed above the air inlet 3 of the cleaner body 1. Has been.

  Further, the protruding portion 19 and the dust collection bag detecting body 16 are arranged so as to be shifted in the lateral direction so as not to interfere when the lid body 10 is closed.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  As shown in FIG. 5, when the lid body 10 is in the open state, the dust bag detecting body 16 is urged by the spring body 17 to a position where the protruding portion 16 </ b> B protrudes outside the tight rib 11.

  In order to set the dust bag 13 in the dust chamber 3 in this state, the mouth frame 12 is slid on the surface of the inclined surface A19A of the projecting body 19 without any operation, and is fitted to the positioning portion 14 as it is. Just go. Then, in this state, that is, in a state where the mouth frame 12 is set at a predetermined position in the dust collecting chamber 3 and the dust collecting bag 13 is inserted, the lid 10 is rotated so as to be closed. As shown in FIG. 8A, the detection unit 16 </ b> A of the dust bag detection body 16 contacts the upper end of the mouth frame 12. When further rotated to the closed state, as shown in FIG. 8B, the detection unit 16 </ b> A starts to rotate upward, and at the same time, the protrusion 16 </ b> B rotates to the dust collection chamber 3 side so as to move away from the tight rib 11. Finally, as shown in FIG. 3, the lid body 10 is rotated to a predetermined position to be closed, and the tight rib 11 and the packing A7 are brought into contact with each other to perform air tight. Then, the mouth frame 12 is brought into close contact with the packing B18 of the tight body 6 disposed in the air inlet 2.

  Next, as shown in FIG. 9, when the mouth frame 12 is not inserted into the dust collection chamber 3, the protruding portion 16 </ b> B of the dust collection bag detection body 16 remains in the tight rib 11 even if the lid body 10 is turned to the closed state. Since the protrusion 16B is sandwiched between the tight rib 11 and the packing A7, the lid 10 is not completely closed.

  Further, when removing the dust bag 13 from the dust chamber 3, it is only necessary to open the lid body 10, whereby the dust bag detector 16 is rotated by the urging force of the spring body 17, and the protrusion 16 B of the tight rib 11. And the engaging portion 16C of the detecting portion 16A is disengaged from the mouth frame 12. Therefore, it is only necessary to hold the mouth frame 12 without taking any other operation and to extract the mouth frame 12 as it is without being stuck by the inclined surface B19B of the projecting body 19.

  As described above, the dust bag detection body 16 is provided on the lid body 10 to prevent the user from accidentally using the dust bag 13 without setting it in the dust chamber 3, and the dust bag 13. Can be attached and detached in one operation, and the protrusion 19 prevents the mouth frame 12 from sticking to the tight body 6 and improves the insertability of the mouth frame 12, and prevents dust from leaking from the tight body 6 packing B18. The inclined surface A19A and the inclined surface 19B serve as a guide when the mouth frame 12 is inserted and removed, and the detachability of the mouth frame 12 is further improved. In addition, when the dust bag 13 is attached, the intake port 3 can be easily visually observed from above and can be attached in a stable state. Therefore, erroneous insertion of the dust bag 13 can be prevented. Further, when the dust bag 13 is taken out, there is nothing caught on the mouth frame 12 and the intake hole 12A, so that dust in the dust bag 3 is not spilled. In this way, it is possible to prevent the vacuum cleaner from being broken due to dust leakage occurring during erroneous insertion and removal.

  Further, as the lid 10 is closed, the dust bag detection body 16 comes into contact with the mouth frame 12 of the dust bag and the detection section 16A moves, and the protrusion 16B can be closed by the movement. Therefore, a drive source for moving the dust bag detector 16 is not particularly required.

  In addition, since the dust bag detecting body 16 is displaced in the lateral direction from the projecting body 19, it can be installed in a narrow space and can be downsized.

  Further, the dust bag detecting body 16 is configured to be urged by the spring body 17 so that the protrusion 16B is positioned at a position where the lid body 10 cannot be closed when the dust bag 13 is not attached. Since the projection 16B is inadvertently placed in the closed state, the lid 10 is closed with the dust bag 13 not attached. The situation can be prevented.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS.

  Note that the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In FIG. 10, the projecting body 19 is formed by a bumper 9 made of a soft body having a packing A7 and the surface 19D is formed. The holding portion 19E is a hard body such as resin and is formed integrally with the bumper 9, and the surface 19D and the holding portion A space 19F is provided between 19E.

  Further, the surface 19D of the projecting body 19 has a projecting margin (L3) slightly larger than the projecting margin (L1) of the tight body 6 disposed at the intake port 2 toward the dust collection chamber 3 of the packing B18. Has been.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The surface 19D of the projecting body 19 is disposed with a projecting margin (L3) slightly larger than the projecting margin (L1) of the tight body 6 disposed at the air inlet 2 to the dust collection chamber 3 side of the packing B18. Thus, when the mouth frame 12 is inserted, the surface 19D of the projecting body 19 is inserted into the positioning portion 14 as a guide, so that it is positioned closer to the dust collection chamber 3 than the packing B18 of the tight body 6. 12 can be reliably inserted into the auxiliary positioning portion 15 without striking the packing B18.

  Further, since the surface 19D of the projecting body 19 is formed of a soft body and has the space portion 19F, the lid body 10 is closed and the mouth frame 12 is closed by the engaging portion 16C of the dust bag detecting body 16. The amount of movement of the mouth frame 12 is absorbed by the deformation (elasticity) of the surface 19D and the deformation to the space portion 19F when moving to the intake port 3 side, and the close contact between the mouth frame 12 and the packing B18 can be performed reliably. It is tight and prevents dust leakage.

  Further, since the skin layer is formed on the surface 19D of the projecting body 19, the sliding with the mouth frame 12 is good, and the insertability and detachability are improved.

  In the above embodiment, the dust bag detecting body 16 is urged by the spring body 17 in order to bring the mouth frame 12 into close contact with the packing B18 of the tight body 6 disposed in the air inlet 2 of the dust collecting chamber 3. Although the case where the detecting portion 16A is provided with the engaging portion 16C has been described, a rib or the like for holding the mouth frame 12 is separately provided on the lid 10 without giving the dust bag detecting body 16 such a function. Any configuration may be used as long as it satisfies the gist of the present invention.

  As described above, the vacuum cleaner according to the present invention can prevent misuse without attaching the dust bag, and can easily attach and detach the dust bag, greatly improving usability, particularly at home, Useful for business-use vacuum cleaners.

Sectional drawing of the principal part of the vacuum cleaner in Embodiment 1 of this invention (cross section AA on FIG. 3). Same as above, arrow view of the main part of the vacuum cleaner (see arrow B in Fig. 1) Same section arrow view of the main part of the vacuum cleaner Same perspective view of vacuum cleaner Same section of the vacuum cleaner Same section of the vacuum cleaner with the dust bag removed Same as above, exploded view of essential parts of vacuum cleaner (A) Same part sectional view of the vacuum cleaner (b) Same part sectional view of the vacuum cleaner Same section of the vacuum cleaner Sectional drawing of the principal part of the vacuum cleaner of the state which removed the dust bag in Embodiment 2 of this invention

Explanation of symbols

3 Dust collection chamber 6 Tight body 7 Packing A
9 Bumper 10 Lid 11 Tight rib 12 Mouth frame 12A Air intake hole 13 Dust collection bag 16 Dust collection bag detector 16A Detection unit 16B Protrusion 16C Engagement unit 18 Packing B
19 Protruding body 19A Inclined surface A
19B Inclined surface B
19C Claw 19D Surface 19E Holding portion 19F Space portion 20 Holding rib 20A Hole portion

Claims (6)

A vacuum cleaner body having a dust collection chamber having an intake port and an electric blower storage chamber storing an electric blower for sucking dust, and an intake hole mounted in the dust collection chamber and corresponding to the intake port of the dust collection chamber A dust collection bag with a mouth frame having an opening, a lid that covers the dust collection chamber above the dust collection chamber, and a dust cover that is disposed at the intake port and protrudes toward the dust collection chamber when the lid is closed. The tight body formed of a soft material that abuts the mouth frame of the bag and performs airtight of suction air, and the tight surface of the tight body that is disposed above the tight body and has the same allowance as the tight surface. Provided with a dust bag detection body on the lid body, and the dust bag detection body prevents the lid body from being closed when the dust collection bag is not attached to the dust collection chamber. And a detecting part for detecting that a dust bag is attached to the dust collecting chamber. When the detection unit detects that the dust collection bag is attached to the dust collection chamber, the protrusion moves to a position where the lid is closed, and the dust collection bag is placed in the dust collection chamber. A vacuum cleaner that restricts the position of the mouth frame to the front of the dust collection chamber by the protrusion when inserted. 2. The electric vacuum cleaner according to claim 1, wherein the protruding body is configured not to contact with the dust bag detection body arrangement position in the left-right direction when the lid body is closed. The electric vacuum cleaner according to claim 1 or 2, wherein the protrusion has a double structure, and the inner side is made of a rigid material and the outer side is made of a soft material. The electric cleaning according to claim 1 or 2, wherein the projecting body is formed integrally with a bumper having a lip for performing air tightness between the vacuum cleaner main body and the lid, and a rigid material is disposed on the inside thereof. Machine. The electric vacuum cleaner according to claim 3 or 4, wherein the protrusion has a space between the double structures. The projecting body is formed with an inclined surface A that gradually protrudes toward the dust collecting chamber from the upper part to the substantially central part in the vertical direction, and an inclined surface B that gradually retracts from the dust collecting chamber side from the substantially central part to the lower part. The vacuum cleaner of any one of claim | item 1 -5.

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