JP2010200803A - Suction opening body and vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor brush restraining noises generated by a touch with a weight and an arm part. <P>SOLUTION: Wall parts 64b are integrally formed with both sides of a recess 64c formed on the arm part 64 of the safety body 52 of a safety device 36. Constitutionally securing the strength of the arm part 64 enables the hardness of the arm part 64 to be relatively lowered, thereby allowing the noises generated by the touch with the weight 53 and the front end of an arm part body 64a of the arm part 64 to be restrained. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a suction port body having a safety device that cuts off power supply to a motor in a state where a lower side of a case body is separated from a lower surface to be cleaned, and a vacuum cleaner including the suction port body.

  Conventionally, this type of vacuum cleaner includes a vacuum cleaner body that houses an electric blower. The vacuum cleaner body has a main body dust collection chamber that communicates with the suction side of the electric blower, and the main body dust collection chamber communicates with the outside through a main body suction port formed in the vacuum cleaner body. It is possible. Then, a hose body, an extension pipe, and a floor brush as a suction port body are sequentially connected to the main body suction port, and this floor brush travels on the floor surface, which is the surface to be cleaned. Dust on the floor surface is sucked by the negative pressure and collected in the main body dust collection chamber.

  The floor brush has a horizontally long suction port on the bottom surface of the horizontally long case body, and a rotating brush that is a rotary cleaning body for scraping dust from the floor surface of carpets, etc. can rotate to this suction port. Is attached. In addition, a motor for rotationally driving the rotary brush is disposed inside the case body. Further, a safety device for preventing the motor from rotating the rotating brush in a state where the case body is turned upside down is attached to the lower portion of the case body.

  This safety device has a safety body as a shaft-shaped safety device body pivotally supported by the case body, and a rotating roller that projects downward from the case body is pivotally supported by the safety body. Yes. In addition, an arm portion is formed at one end of the safety body in the axial direction, and a normally open switch electrically disposed between the motor and the power supply side is provided at the other end of the safety body in the axial direction. A contact portion for closing is formed. Furthermore, the arm portion is formed in a curved shape having a recess capable of accommodating a spherical weight. The weight is housed in the recess of the arm portion when the case body is upside down. However, when the case body is turned upside down, the weight protrudes from the recess and moves to the front side of the safety body. The normally open switch is configured not to be closed by preventing the safety body from rotating by coming into contact with the distal end side of the part (see, for example, Patent Document 1).

JP-A-7-67814 (page 3-4, FIG. 1)

  However, in the above-mentioned floor brush, since the arm part is formed in an elongated curved shape, the safety body includes polycarbonate (PC) containing glass fiber or glass fiber so as not to be damaged by contact with a weight or the like. A material having a relatively high strength, that is, a hard material such as polyphenylene sulfide (PPS) is used. For this reason, when the contact between the arm portion and the weight comes into contact, there is a problem that a loud metal sound is generated as noise.

  This invention is made | formed in view of such a point, and it aims at providing the suction inlet body which suppressed the noise which generate | occur | produces with the contact of a weight and an arm part, and a vacuum cleaner provided with the same.

  In the present invention, when the lower side of the case body is in contact with the lower surface to be cleaned, power can be supplied to the motor that rotationally drives the rotary cleaning body, and the lower side of the case body is separated from the lower surface to be cleaned. In this state, the safety device that cuts off the power supply to the motor has a normally open switch connected between the power supply side and the motor side, and the switch is moved at least partly by contact with the surface to be cleaned. A safety device main body to be closed, an arm portion provided on the safety device main body, and a spherical weight capable of preventing the movement of the safety device main body. The arm portion includes the arm portion main body and the arm portion main body. And a wall portion integrally formed on both sides of the concave portion, and the weight moves from the concave portion to the outside side with the case body turned upside down. And safe by contacting the arm It is to prevent movement of the Okimoto body.

  According to the present invention, by integrally forming the wall portions on both sides of the recess of the arm portion, the strength of the arm portion can be structurally ensured, so that the hardness of the material of the arm portion can be relatively reduced. Thus, noise generated with contact between the weight and the arm can be suppressed.

The operation of the suction port safety device of an embodiment of the present invention is shown, (a1) is a side view showing the position of the switch and the safety device body in a state where the suction port body is lifted from the surface to be cleaned. a2) is a side view showing the position of the safety device body and the weight when the suction port is lifted from the surface to be cleaned, and (b1) is a switch with the suction port placed on the surface to be cleaned. Side view showing the position of the safety device body, (b2) is a side view showing the position of the safety device body and the weight when the suction port body is placed on the surface to be cleaned, and (c1) is the suction port body. Side view showing the position of the switch and the safety device body with the case body upside down, (c2) shows the position of the safety device body and the weight with the case body of the suction port upside down FIG. The safety device main body is shown. (A) is a plan view of the safety device main body, and (b) is a side view of the safety device main body. It is a top view which expands and shows a part of suction port body same as the above. It is a top view which shows a part of suction port body same as the above. It is a perspective view which shows the vacuum cleaner provided with the suction inlet same as the above.

  Hereinafter, the configuration of an embodiment of the present invention will be described with reference to FIGS.

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

  The pipe part 12 includes a straight tubular connection pipe part 15 connected to the cleaner body 13, a flexible hose body 16 communicating with the distal end side of the connection pipe part 15, and a distal end side of the hose body 16. The hand operating part 17 provided in the hand, the extension pipe 18 detachably connected to the distal end side of the hand operating part 17, and the floor as a suction port body detachably connected to the distal end side of the extension pipe 18 And a brush 19.

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

  The vacuum cleaner body 13 includes an electric blower chamber (not shown) that houses the electric blower 27 and a main body dust collection chamber (not shown) that communicates with the electric blower chamber, and traveling wheels 28 (one side) provided on both sides. Can only travel on the floor F (FIG. 1), which is the surface to be cleaned. Furthermore, a connecting pipe part 15 that is the base end side of the pipe part 12 can be connected to the main body dust collection chamber. A dust collection unit (not shown) such as a paper pack as a dust collection bag or a dust collection cup as a dust collection device is detachably disposed in the main body dust collection chamber.

  The electric blower 27 is supplied with power from a secondary battery (not shown) accommodated in the cleaner body 13 or a commercial AC power source connected via a power cord (not shown), and is a control means in the cleaner body 13. The control circuit (not shown) is operated in a predetermined operation mode set by the setting button 22, and sucks dust together with air through the pipe portion 12.

  As shown in FIGS. 1 to 4, the floor brush 19 is connected to a case body 31 formed in a horizontally long shape, for example, by a synthetic resin, and the rear portion of the case body 31 so as to be rotatable and connected to an extension pipe 18. Connecting pipe 32. Further, the case body 31 has a horizontally long suction port 33 formed in the lower surface facing the floor surface F, and a rotary brush 34 as a rotary cleaning body is rotatably mounted in the suction port 33. Yes. The case body 31 accommodates a motor 35 for rotating the rotary brush 34 and a safety device 36 for enabling power supply to the motor 35 and for interrupting power supply. .

  The case body 31 includes a lower case 41 that is open on the upper side, an upper case 42 that covers the upper side of the lower case 41, and a bumper 43 that is a buffer member sandwiched between the cases 41 and 42.

  The suction port 33 is formed in the lower surface 41 a of the lower case 41 so as to communicate with the connection pipe 32.

  In the rotating brush 34, a plurality of long cleaning members 46 such as blades or bristle brushes are spirally attached around the long rotating shaft 45 along the axial direction of the rotating shaft 45. The rotating shaft 45 is rotatably supported at both ends of the suction port 33 of the lower case 41 via bearings 47 and 47 at both ends. In addition, the rotational force of the motor 35 is transmitted to one of the bearings 47 via a belt 48 that is a transmission means.

  The motor 35 is accommodated inside the case body 31 on one side behind the suction port 33. The motor 35 is connected to the vacuum cleaner main body 13 (FIG. 5) via a connection pipe 32, an extension pipe 18 (FIG. 5), a hose body 16 (FIG. 5), and a connection pipe portion 15 (FIG. 5). 5) It is electrically connected to the side, and is fed from a power source (not shown) on the cleaner body 13 (FIG. 5) side. Further, the motor 35 can be switched on and off by operating the setting button 22 (FIG. 5).

  As shown in FIGS. 3 and 4, the safety device 36 is accommodated inside the case body 31 on the other side behind the suction port 33. Further, the safety device 36 includes a control unit 51 that controls the rotational drive of the motor 35, a safety body 52 that is movable to the case body 31, for example, a shaft-shaped safety device body that is pivotally supported. A spherical weight 53 serving as a detecting means for detecting the vertical state of the case body 31 is provided.

  The control unit 51 includes a substrate unit 55 on which a motor control circuit that controls the rotational drive of the motor 35 is mounted, and a normally open switch 56 that is electrically connected to the motor control circuit of the substrate unit 55. .

  The substrate unit 55 is disposed above the safety body 52.

  The switch 56 is located between the power supply on the cleaner body 13 side and the motor 35, and can supply power to the motor 35 from the power supply or cut off this power supply. The switch 56 is electrically connected to a condition selection switch (not shown) for selecting a cleaning condition, for example, when cleaning a floor surface such as a carpet or when cleaning a floor surface such as a tatami mat. The motor 35 is configured so that power can be supplied only when the condition selection switch selects the cleaning of the floor surface that requires rotational driving of the rotary brush 34 such as a carpet. As shown in FIG. 1, the switch 56 has a box-shaped switch main body 56a and a contact arm 56b that is a contact operating portion pivotally supported on one end of the switch main body 56a. The switch 56 is configured to be closed when the tip end side of the contact arm 56b is rotated by a predetermined angle or more toward the switch body 56a. Note that the contact arm 56b is biased in a direction in which the tip end side is separated from the switch body 56a.

  As shown in FIGS. 1, 2 (a) and 2 (b), the safety body 52 is provided with a contact portion 61 which is a switch switching portion for closing the switch 56 on one end side in the axial direction. The shaft support portions 63, 63 that support the rotating roller 62, which is a contact body that can contact the floor surface F, protrude in the radial direction forward so as to intersect the axial direction at an intermediate position in the axial direction. And, at the other end side in the axial direction, an arm portion 64 is integrally formed so as to protrude in the radial direction. The safety body 52 is pivotally supported so as to be sandwiched and rotated between the lower case 41 and a cover body 65 attached to the upper portion of the lower case 41 in the vertical direction. Furthermore, a torsion spring 66 as an urging means for urging the safety body 52 in the rotational direction is attached to one end of the safety body 52 in the axial direction. The safety body 52 is formed of a relatively soft synthetic resin such as polyacetal (POM).

  The contact portion 61 is located on the upper side of the safety body 52, and faces the lower side on the front end side of the contact arm 56b of the switch 56 in a state where the safety body 52 is attached to the case body 31. The contact portion 61 closes the switch 56 by pushing the distal end side of the contact arm 56b toward the switch body 56a side by rotating the safety body 52 by the contact of the rotating roller 62 with the floor surface F. It is configured as follows.

  The rotating roller 62 protrudes below the case body 31 from a safety device opening 68 (FIG. 4) formed in the lower surface 41 a of the lower case 41 with the safety body 52 attached to the case body 31. The rotating roller 62 is provided with a brushed cloth 62a on the outer peripheral surface, and is urged by the torsion spring 66 so that the rotating roller 62 protrudes below the case body 31. Is placed on the floor surface F so as to always contact the floor surface F.

  The shaft support portions 63 and 63 respectively have shaft support holes 63a through which the rotation shaft 62b of the rotation roller 62 is rotatably inserted.

  The arm portion 64 includes an arm portion main body 64a extending in the shape of an elongated arm, and wall portions 64b and 64b integrally formed on both sides of the arm portion main body 64a.

  The arm part main body 64a is formed in a curved shape so as to extend rearward and downward with respect to the safety body 52, and further, the tip end side is folded back upward and forward. Therefore, a recess 64c that can accommodate the weight 53 is formed on the front side of the arm body 64a. In FIGS. 1 (a1) to 1 (b2), the right side is the front side of the floor brush 19 (FIG. 4), and the left side is the rear side of the floor brush 19 (FIG. 4).

  The recess 64c is partitioned on both sides by walls 64b and 64b, and has an opening 64d on the upper front side of the safety body 52. That is, the recess 64c is formed so that the deepest portion is on the lower rear side of the safety body 52. Further, the concave portion 64c is formed so that the opening 64d does not face downward even when the safety body 52 is rotated to the maximum, and when the floor brush 19 (FIG. 4) is correctly up and down, Regardless of the rotation of the safety body 52, the weight 53 is configured not to jump forward from the recess 64c.

  Each wall portion 64b is formed, for example, so as to connect the proximal end and the distal end of the arm portion main body 64a. The interval between the walls 64b and 64b is set to be slightly larger than the diameter of the weight 53, and restricts the movement of the weight 53 in the left and right sides in the recess 64c. In other words, the recess 64c prevents the weight 53 from escaping in the left-right direction. Furthermore, a hole 64e is cut out in each wall 64b.

  Each hole 64e is formed, for example, along the direction in which the safety body 52 is molded, and the safety body 52 is reduced in weight. The sizes of the holes 64e are set so that the weight 53 does not move out of the recess 64c through the holes 64e. The shape of these holes 64e can be arbitrarily set, and may be formed not only in a notch shape but also in the shape of a hole having a wall 64b. Furthermore, these holes 64e are not essential components.

  As shown in FIG. 3, the cover body 65 includes a cover portion 65a that covers the safety device opening 68 (FIG. 4), and a guide portion 65b that is a restricting portion formed integrally with the side portion of the cover portion 65a. Have. The cover body 65 is sandwiched and fixed from above and below by a lower case 41 and an upper case 42 (FIG. 5).

  A plurality of support protrusions 65c for supporting the substrate part 55 of the control part 51 are formed on the upper part of the cover part 65a.

  The guide portion 65b is a partitioning rib portion for partitioning the arm portion accommodating portion 69 in which the arm portion 64 is located, and is formed in a substantially U shape that opens forward in plan view. Further, the width dimension of the guide part 65b is formed larger than the width dimension of the arm part 64.

  The torsion spring 66 moves the safety body 52 in the direction in which the rotary roller 62 protrudes from the safety device opening 68 (FIG. 4), that is, the direction in which the contact 61 is separated from the contact arm 56b of the switch 56, in other words, the contact. The arm 56b is biased in a direction away from the switch body 56a.

  As shown in FIG. 1, the weight 53 has, for example, a core (not shown) formed in a spherical shape with a metal having a large specific gravity such as iron as a core, and an elastic member such as silicone rubber is provided on the outer periphery of the core. For example, the weight 53 is formed in a spherical shape in which substantially the entire outer peripheral surface of the core portion is held by an elastic member by injection molding to a predetermined thickness of about 1.0 mm to 1.5 mm. Therefore, the weight 53 is recessed in the state shown in FIGS. 1 (a1) to 1 (b2) in which the case body 31 is correctly turned up, that is, in the state where the suction port 33 (FIG. 4) is opposed to the floor F side. It has a predetermined weight so as not to easily protrude from the opening 64d of the 64c to the outside of the recess 64c. Further, as shown in FIGS. 3 and 4, the weight 53 is configured not to jump forward due to vibration or the like by the projection preventing wall W located in front of the arm portion 64.

  Next, the operation of the above embodiment will be described.

  When cleaning, attach a dust collection part to the main body dust collection chamber of the vacuum cleaner main body 13 shown in FIG. 5 and connect the power cord to an outlet. By operating the setting button 22, the control circuit in the cleaner body 13 drives the electric blower 27.

  The operator places the floor brush 19 on the floor surface F (FIG. 1), grips the gripping portion 21 and runs the floor brush 19 back and forth, thereby causing the suction port to act by the negative pressure of the electric blower 27. Inhale dust together with air from 33 (Fig. 4). The sucked air is sucked into the main body dust collection chamber of the vacuum cleaner body 13 through the connection pipe 32, extension pipe 18, hose body 16 and connection pipe section 15 together with dust. Dust is collected by the dust collector. Then, the suction air in which the dust is collected is sucked into the suction side of the electric blower 27 in the electric blower chamber, passes through the electric blower 27 while cooling and becomes exhaust air, and the exhaust of the cleaner body 13 is exhausted. The air is exhausted from the hole to the outside of the cleaner body 13.

  Further, when cleaning the floor surface F such as a carpet, the operator operates the setting button 22 to appropriately rotate the rotary brush 34.

  Here, as shown in FIG. 1 (a1), in the state where the floor brush 19 (FIG. 4) is separated (floated) from the floor surface F, the torsion spring 66 (FIG. 2) urges the safety body 52. The rotating roller 62 is rotated so as to protrude below the case body 31. At this time, the contact portion 61 of the safety body 52 is separated from the contact arm 56b of the switch 56, the contact arm 56b is separated from the switch body 56a, and the switch 56 is opened. For this reason, the rotating brush 34 (FIG. 4) does not rotate even if the setting button 22 (FIG. 5) is operated. Further, as shown in FIG. 1 (a2), the weight 53 is accommodated in the deepest portion in the recess 64c of the arm portion 64.

  Next, as shown in FIG. 1 (b1), when the floor brush 19 (FIG. 4) is placed on the floor surface F, the rotating roller 62 comes into contact with the floor surface F, and the weight of the floor brush 19 (FIG. 4) When the safety body 52 rotates backward against the urging force of the torsion spring 66 (FIG. 2), the rotation roller 62 enters the safety device opening 68 (FIG. 4). Further, the contact portion 61 pushes the tip end side of the contact arm 56b of the switch 56 toward the switch main body 56a and rotates it, whereby the switch 56 is closed. As a result, power can be supplied from the power source to the motor 35. In the state where the condition selection switch selects the case of cleaning the floor surface that requires the rotational drive of the rotary brush 34 (FIG. 4) such as a carpet, the operator operates the setting button 22 (FIG. 5) to control The motor control circuit of the section 51 (FIG. 3) rotates the motor 35, and the rotation drive of the motor 35 is transmitted to the bearing 47 by the belt 48 (FIG. 4), whereby the rotating brush 34 (FIG. 4) rotates. To do. At this time, as shown in FIG. 1 (b2), the arm portion 64 rotates integrally with the safety body 52 while the weight 53 is held in the deepest portion of the concave portion 64c.

  As a result, due to the rotation of the rotating brush 34 shown in FIG. 4, the dust that has entered the floor surface F (FIG. 1) is scraped out by the cleaning member 46 and is sequentially sucked from the suction port 33. The rotation direction of the rotating brush 34 can be arbitrarily set.

  Further, as shown in FIG. 1 (c2), the floor brush 19 (FIG. 4) is such that the case body 31 of the floor brush 19 (FIG. 4) is turned upside down, that is, the lower surface 41a of the lower case 41 is on the upper side. ) Is turned upside down (turned upside down), since the opening 64d of the recess 64c of the arm portion 64 faces downward, the weight 53 accommodated in the recess 64c jumps out of the recess 64c from the opening 64d, The movement of the weight 53 is restricted by the restriction wall portion 71 while being held by the upper end portion of the boss 70 as a holding portion at a position facing the distal end side of the arm portion main body 64a of the arm portion 64. For this reason, since the rotation of the safety body 52 is prevented when the tip of the arm portion main body 64a abuts on the weight 53, the operator cannot push in the rotating roller 62 shown in FIG. Therefore, the switch 56 (FIG. 1 (c1)) is not closed, and the rotation of the motor 35 (FIG. 4), that is, the rotating brush 34 (FIG. 4) is prevented. As a result, it is possible to prevent the rotating brush 34 (FIG. 4) from being erroneously rotated while the floor brush 19 (FIG. 4) is turned upside down.

  When cleaning is completed, the operator appropriately operates the setting button 22 (FIG. 5) to stop the rotation of the rotating brush 34 and the driving of the electric blower 27 (FIG. 5).

  As described above, according to the above-described embodiment, the wall portion 64b is integrally formed on both sides of the concave portion 64c of the arm portion 64 of the safety body 52, whereby the strength at the arm portion 64 of the safety body 52 is structurally increased. Therefore, it is assumed that the material of the arm part 64 (safety body 52) is not a hard material such as a synthetic resin containing glass fiber as in the prior art, but has a relatively reduced hardness (strength). It becomes possible. As a result, for example, the contact between the weight 53 protruding from the recess 64c with the case body 31 turned upside down and the tip of the arm body 64a of the arm section 64, the case body 31 (the floor brush 19 (FIG. 4)). With the contact between the weight 53 and the arm portion 64 and the wall portion 64b in the state where the arm is lifted from the floor surface F or the case body 31 (floor brush 19 (FIG. 4)) is placed on the floor surface F The generated noise can be suppressed.

  That is, when the weight 53 protrudes upward from the concave portion 64c with the case body 31 correctly positioned up and down to prevent the safety body 52 from rotating, the rotating brush 34 (FIG. 4) despite the normal use state. Therefore, it is necessary to use a metal having a large specific gravity. Further, the arm portion 64 is curved and thin to form the concave portion 64c, while preventing the rotation of the rotating brush 34 (FIG. 4) with the case body 31 turned upside down. Since it is necessary to make contact with the weight 53 having a large specific gravity, strength is required so as not to be damaged by contact with the weight 53, and in the conventional configuration, it is necessary to use a material having relatively high strength. . For this reason, in the conventional configuration, a metallic collision sound is generated due to a collision between the hard arm portion 64 and the weight 53 having a large specific gravity. Therefore, in the present embodiment, the arm portion 64 is structurally strengthened as a box shape by the wall portion 64b, so that a material having relatively small hardness can be used as a material constituting the arm portion 64, and Since the arm portion 64 can be formed smaller, the weight 53 can also be made smaller, and therefore noise during contact between the arm portion 64 and the weight 53 can be reduced.

  Further, in the conventional configuration, the weight 53 is restricted from moving to both sides of the arm portion 64 by the guide portion 65b of the cover body 65 that partitions the arm portion accommodating portion 69 that accommodates the arm portion 64. On the other hand, in the present embodiment, the walls 64b and 64b of the arm part 64 itself are regulated. The width dimension of the guide portion 65b requires a predetermined clearance with respect to both side portions of the arm portion 64 so that the safety body 52 does not come into contact with the rotation of the safety body 52. In the present embodiment, the movable width in the horizontal direction of the weight 53 is the dimension between the walls 64b and 64b, whereas the movable width in the horizontal direction is the width dimension of the guide portion 65b. The movable width of the weight 53 in the left-right direction can be further reduced. Therefore, an impact at the time of contact between the weight 53 and the arm portion 64 can be suppressed, and noise generated due to this contact can be further suppressed.

  Moreover, by forming the wall portions 64b and 64b in the arm portion 64, the vibration of the arm portion 64 itself when contacting the weight 53 is also suppressed, and noise can be further reduced.

  Furthermore, by using a metal sphere as the weight 53, a sufficient specific gravity can be easily obtained even if the size is reduced.

  Further, by enclosing the periphery of the weight 53 with an elastic member, it is possible to further suppress noise generated when the weight 53 contacts the arm portion 64 of the safety body 52.

  In the above-described embodiment, the safety body 52 is not limited to a rotating body, and at least a part of the safety body 52 can be moved to close the switch 56 by being partly in contact with the floor surface F. Any configuration can be used.

  Further, as the weight 53, a metal may not be used as long as a sufficient specific gravity can be obtained.

11 Vacuum cleaner
13 Vacuum cleaner body
19 Floor brush as suction port
27 Electric blower
31 Case body
33 Suction port
34 Rotating brush as rotating cleaning body
35 motor
36 Safety devices
52 Safety body as safety device
53 spindles
56 switch
64 Arm
64a Arm body
64b wall
64c Concavity F Floor to be cleaned

Claims (4)

A case body having a suction port opened on the lower surface;
A rotary cleaning body rotatably disposed at the suction port;
A motor that rotationally drives the rotary cleaning body;
When the lower side of the case body is in contact with the lower surface to be cleaned, power can be supplied to the motor, and when the lower side of the case body is separated from the lower surface to be cleaned, A safety device that cuts off the power supply,
The safety device is
A normally open switch connected between the power supply side and the motor side;
A safety device main body that closes the switch by moving at least a part by contact with the surface to be cleaned;
An arm portion provided in the safety device main body,
A spherical weight capable of preventing movement of the safety device body,
The arm portion is
The arm body,
A recess formed in the arm body and movably housing the weight;
And wall portions integrally formed on both sides of the recess,
The suction port body prevents movement of the safety device main body by moving from the concave portion to the outside side in contact with the arm portion while the case body is turned upside down. . The suction port according to claim 1, wherein the weight is a metal sphere. The suction port body according to claim 2, wherein the weight is surrounded by an elastic member. A vacuum cleaner body containing an electric blower,
A vacuum cleaner comprising: a suction port body according to any one of claims 1 to 3 capable of communicating with a suction side of the electric blower.

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