JPH01310627A - Electric cleaner - Google Patents

Abstract

PURPOSE:To easily insert a hose to an absorbing port by providing projection, to which the tip edge of a shutter body in a sliding direction is abutted, in a position to be displaced from a turning shaft of the external surface of a turning body which has the absorbing port. CONSTITUTION:When a hose 71 is not inserted to an absorbing port 41 of a turning body 36 and a shutter body 61 is slided forward with picking a knob 62, a front edge 61a of the shutter body 61a is abutted even in case projection 59 of the turning body 36 is in any position. Then, the turning body 36 is turned in a direction, in which the projection 59 proceeds, and the turning is stopped when the turning body arrives at a position, where the projection 59 proceeds at a maximum. When the shutter body 61 proceeds forward further, the front edge of the shutter body 61 elastically goes over the projection 59 and a recessing part 63 on the back of the shutter body is engaged to the projection 59. Then, the turning body 36 is held in a constant position. When the hose is inserted, the knob 62 is picked up. Then, since the recessing part 63 is put off from the projection 59 simultaneously when the shutter body 61 slides backward and starts to be opened, the position of the turning body 36 is not changed as it is.

Description

Detailed Description of the Invention [Object of the Invention] (Field of Industrial Use) The present invention provides an electric cleaner having a rotating body provided with a suction port into which a hose is inserted, and a shutter body for opening and closing the suction port. In particular, the present invention relates to the structure of the rotating body and the shutter body.

(Prior Art) Conventionally, as described in, for example, Japanese Utility Model Application Publication No. 60-94152, the dust collection chamber of a vacuum cleaner body is opened from above by Vr8.
A rotating body is rotatably supported on a cover that can be closed freely, and this rotating body is provided with a suction port into which one bent end of a hose is removably inserted, and this suction port can be freely opened. 2. Description of the Related Art A vacuum cleaner is known in which a shutter body that closes the window is slidably provided between a rotary body and a lid body. The purpose of providing the suction port on the rotating body is to improve the operability of the hose, and the shutter body is provided to prevent dust from spilling from the suction port. In the conventional vacuum cleaner of this kind, the rotary body rotates and cleans regardless of the position of the shutter body. Therefore, even if the shutter body is opened or closed after the hose is drained from the suction port, the position of the rotating body, that is, the rotation angle does not change. Moreover, even when the shutter body is closed, 11iiv! This may cause the rotating body to rotate.

By the way, inside the membrane, between the hose and the suction port, there is a removable clamp J3 and a part 1 that maintain the connection between the hose and the suction port, or an electrical connection part of @IIR's own right. They are installed on the outer periphery. Therefore,
The circumferential relationship between the hose and the suction port is 11.
It has been promised.

However, in the vacuum cleaner mentioned above in which the suction port is provided on a freely rotatable rotary body, the position of the rotary body is indeterminate when viewing the hose by l+'1, so that the distance between the hose and the rotary body is 1 no. It was very difficult to decide on the situation on the other side, and it was difficult to insert and install the hose, making it difficult to use. Moreover, since the part of the hose connected to the suction port is bent, the irregular position of the rotating body as described above makes it even more troublesome to insert the hose. If you lose the hose from a position other than the one facing the front of the machine, for example from the side, the rotating body will remain in the position it was in when the hose was removed last time, so when you next use it, try inserting the hose from the front. If so, it is very troublesome.

In addition, for example, a conventional vacuum cleaner has an electric motor for driving a rotating brush on the suction port connected to the hose, and a contact on the main body that relays the power line from the vacuum cleaner main body to the motor inside the rotating body. When the power cord of the vacuum cleaner body is connected to a 100V AC VL power source, regardless of whether a hose having a hose side contact that is contacted by the body side contact is connected to the suction port, the body side contact is connected to this power source. was connected to a structure in which it is always electrically connected. Therefore, when the power cord is connected to the power source, the hose is not connected to the suction port, and the shutter body is not closed, the contacts on the main body side that are electrically connected to the power source may be visually exposed. There was a risk of short circuit or electric shock.

(Problems to be Solved by the Invention) As mentioned above, in the conventional one-air cotton removing machine in which the rotating body is provided with a suction port to which a hose is connected, the position of the rotating body is uncertain, so it is difficult to insert or attach the hose. There was a difficult problem.

Such a problem can be solved by making the rotating body return to a certain position n after losing the hose.

As a structure for returning the rotating body to a fixed position, the structure shown in FIG. 10 or FIG. 11 can be considered.

In the vacuum cleaner shown in FIG.
The rotation axis of the rotation body 104 having 3 is vertically 1 no.
By utilizing the fact that it is tilted at L, the rotating body 104
A weight body 105 is provided on the outer periphery of the shaft, which is offset from the rotation axis. In this way, when the hose is pulled out from the suction port 103, the C1 rotating body 104 is automatically and immediately set to a constant IO by the weight body 105. 'Tl, the weight body 105 is rotated and returned to the lowest position. In addition, in the electric station removal method shown in FIG. 11, the weight body 105 is made of a magnet, and the weight body 105 is located at the lowest point in the support member 106 that forms a part of the lid body 102 and supports the rotary body 104. An iron piece or magnet 1o7<r is provided at a position facing the weight body 105, so that the rotary body 104, which has returned to a fixed position by the own vehicle, does not undergo pendulum movement and is reliably positioned.

However, in these structures, instability of frictional resistance is also a problem, and the rotating body 104 cannot be rotated reliably unless the weight body 105, which is one minute heavier, is used, and in reality, it is difficult to incorporate the weight body 101). It is. Above all, rotating body 1
There is a possibility that the weight balance of 04 becomes poor and the operability of the hose is impaired.

In addition, conventional vacuum cleaners with contacts on the rotating body have a structure in which the broiling point is electrically connected to the power supply even when the hose is not connected, which poses safety problems. Ta.

The present invention is an attempt to solve the above-mentioned problems, and is capable of reliably and easily returning the rotating body to a predetermined position after the hose has been temporarily attached, and that it is possible to reliably and easily return the rotating body to the predetermined position. The object of the present invention is to provide a user-friendly vacuum cleaner in which a hose can be easily inserted. Another object of the present invention is to provide a vacuum cleaner with good operability of the shutter body that opens and closes the suction port. Furthermore, it is an object of the present invention to improve safety by eliminating the risk of short circuit or electric shock in a vacuum cleaner in which an electrical contact is provided on a rotating body.

(Structure of the Invention) (Means for Solving the Problems) The vacuum cleaner of the present invention is an electric vacuum cleaner! ! A collection U connecting to the negative pressure side of the electric blower is provided inside, and an outer opening facing the dust collection chamber and an IJI air outlet communicating with the positive pressure side of the electric blower are provided inside. The main body of the vacuum cleaner is located inside the outer opening of the vacuum cleaner body and is supported by the front F, il! A rotating body having a suction port communicating the dust collection chamber to the outside, and a rotating body supported slidably between the rotating body and the vacuum cleaner body along an outer surface substantially perpendicular to the direction of the rotating axis of the rotating body. In order to achieve the above object, the rotary body is provided with a shutter body that covers the outer surface of the rotary body so as to be openable and closable, and a hose whose one end is removably inserted into the suction port of the rotary body. A protrusion is provided on the outer surface at a position offset from the rotation axis, for example, at the outer peripheral edge, with which the leading edge of the shutter body in the sliding direction comes into contact.

Furthermore, the inner surface of the shutter body may be stepped with four parts that are removably engaged with the protrusions of the rotating body when the shutter body is completely closed.

Furthermore, in a vacuum cleaner equipped with a main body side contact provided in a rotating body and electrically connected to a power source, and a base side contact provided on a hose and freely contacted with the main body side contact, IF the protrusion against the rotating body! The rotary body is movable so that it does not protrude or retract from the outer surface of the rotary body, and is provided with an elastic body at a position where the base 11 comes into contact from the insertion direction when the body is moved outwardly by one force. A switch is provided which is electrically connected between the contact on the main body side and the power source, and a switch opening/closing mechanism is integrally provided which opens and closes the switch when the protrusion protrudes from the protrusion and when it is recessed. Even if it is set to J, it is good.

(Function) In the electricity 11 removal according to claim 1 of the present invention, when the hose is not attached to the suction port of the rotating body, that is, when it is not removed,
IFt the shutter body! Then, the shutter body covers the outer surface of the rotating body and closes the suction port. In this way, when the shutter body is opened, the shutter body slides along the outer surface of the rotary body that is almost perpendicular to the rotary wheel, and as a result, the leading edge of the shutter body in the opening direction is aligned with the outer surface of the rotary body. Pushing the protrusion located off the rotation axis, the rotating body rotates, and finally the protrusion moves forward to the maximum extent in the first training direction (tp+=move).

In this way, no matter what position the rotating body is in before closing the shutter assembly, it will be in a constant position and oriented in a constant direction when the shutter body is closed. When cleaning, the shutter body is oscillated and one end of the hose is inserted into the suction port of the rotating body. is separated from the protrusion of the rotary body, and the position of the rotary body remains at the constant position.

Further, in the vacuum cleaner according to the second aspect, when the shutter body is closed, the concave portion on the inner surface of the shutter body is engaged with the protrusion of the rotary body at the point when the shutter body is completely closed, so that a click feeling (7 In this state, the engagement between the protrusion and the four parts ensures that the shutter body and the rotating body are held in place.Also, when listening to the shutter body, when the shutter body starts to open, At the same time, the recess is removed from the protrusion, giving a click sensation.

Furthermore, in the vacuum cleaner of claim 3, when the hose is attached to the suction port of the rotating body, the hose side contact contacts the main body side contact in the moving body, and the hose presses the protrusion of the rotating body from the insertion direction. Then, this protrusion is retracted, and the switch opening/closing mechanism between this protrusion and body closes the switch between the main body side contact and the power supply. Furthermore, when the hose is removed from the suction port, the hose side contact separates from the main body side contact and the hose separates from the protrusion, and the protrusion protrudes due to the biasing force of the elastic body, causing the switch to listen.

(Embodiment) Hereinafter, the configuration of an embodiment of the vacuum cleaner of the present invention will be described based on FIGS. 1 to 6.

Reference numeral 1 denotes a vacuum cleaner main body, which is composed of a main body case 3 having an opening 2 formed in the upper front side thereof, and a lid body 4 having a rear end attached to the main body case 3 and opening the opening 2. Also,
The main body case 3 is composed of a lower main body case member 5 and an upper main body case member 6 which is coupled and fixed to the upper side of the lower main body case member 5.

The inside of the main body case 3 is partitioned into the front and back by a partition wall 12 formed approximately at the center thereof and having a communication port 11, and an electric blower 13 is installed in a space behind the partition wall 12. Assuming that the space in front of the partition wall 12 has the opening 2 as the upper surface I, it is a dust collection chamber 14 located on the negative 11- side of the electric blower 13. Further, an exhaust port 15 communicating with the positive pressure side of the electric blower 13 is formed on the rear surface of the main body case 3 . In the vacuum cleaner body 1, a glass plate is located between the electric blower 113 and the air vent 15. A true full air filter 16 made of a variety of materials is attached, and a sponge-like nub exhaust filter 17 is attached to the exhaust port 15. Although not shown, inside the main body case 3, a rotatable cord reel GL is provided, which is located on the side of the electric blower 13 and winds and stores a power cord connected to an AC power source. It is being

The lid body 4 is formed in a thin cocoon shape with an open bottom surface, and a main body clamp 22 biased by a spring 21 is pivotally attached to the front end of the container body 4.

The main body clamp 22 is removably engaged with a locking portion 23 formed at the upper end of the front surface of the main body case 3, so that the lid body 4 is maintained in a closed state 1).

The front side of the upper surface of the lid body 4 is formed as an inclined surface 26 that descends toward the front, and this inclined surface 26 is formed with an upper side 1i1D27 as a circular outer opening. Also, on the 1ζ side of the vessel body 4, there is an inner y! which is approximately parallel to the top surface of the lid body 4. ! 28 are connected and fixed by screws or the like, and a lower side opening 29 facing the above-mentioned upper side opening 27 is formed in this inner wall 28. Roughly, a support 30 is fixed in the space between the inclined surface 26 and the inner wall 28, and the support 30 has both openings 27 and 29.
An intermediate space "1" 31 is formed opposite to the "1" 31.

Reference numeral 36 denotes a rotating body, which is located between the inclined surface 26 and the inner wall 28 and is rotatable (supported by the supporting body 30).

In other words, the rotating body 36 is composed of an upper rotating body member 38 and a lower rotating body member 39, which are substantially disc-shaped and are connected and fixed by screws 37, etc., and the circumferences of these rotating body members 38, 39 are
The housing is rotatably clamped to the peripheral edge of the support 30 between the intermediate portions 131.

A cylindrical suction port 41 facing the upper opening 27 of the lid 4 is formed in the upper rotating body member 38 and projects downward. - The cylindrical lower rotating body member 39 includes the suction port 41 and the 1st side opening 29 of the lid body 4.
A cylindrical tubular portion 42 is formed to protrude downward.

A suction valve body 43, which can be opened and closed, is airtightly installed between the suction port 41 and the tubular portion 42.

Further, a seal backing 44 is attached to the peripheral edge of the lower side opening 29 of the spacer 4, and this seal backing 4
4, the tip of the tubular portion 42 is airtightly and freely movableff.
, is bordered.

Further, a four part 46 is formed in the upper part of the upper rotating body member 38 and is continuous with the suction port 41, and a locking hole 47 is formed in the outer peripheral part of the four part 46.

Further, a pair of ring-shaped contacts 48 are fixed to the bottom surface of the rotary J body 36, and these ring-shaped contacts 48 are
A pair of fixed contacts 5 fixed to the inner wall 28 with screws 49
0 in slidable contact with each other.

These fixed contacts 50 are electrically connected to the power cord 1G via a power supply line (not shown).

Also, a pair of main body side contacts 52 are located on the lower side within the rotating body 36, facing a pair of insertion holes 51 formed on the upper surface of the upper rotating body member 38 and located on the opposite side of the four parts 4G. It is fixed by a rib 53 formed on the rotating body member 39. These main body side contacts 52 are electrically connected to the ring-shaped contact 48 via power supply lines (not shown), respectively.

Furthermore, a pair of ring-shaped contacts 54 are also fixed to the circumferential surface of the rotating body 36, and these ring-shaped contacts 54 are
A pair of fixed contacts (t shown in the figure) fixed to the support 30
! f) are respectively slidably contacted. and,
These fixed contacts are electrically connected to the control circuit of the electric blower 13 provided in the vacuum cleaner main body 1 via a signal Ql (not shown). Furthermore, body side contacts 56 of -3 and 1 are fixed in the rotating body 36 by ribs 57 formed on the lower rotating body member 39, facing the grooves 55 formed in the vicinity of the concave portions 46, respectively. ing. These main body side contacts 56 are electrically connected to the ring-shaped contacts 54 via wires (not shown), respectively.

Further, a substantially cylindrical projection 59 is formed protruding from the outer peripheral edge of the upper surface of the upper rotating body member 38 and is located near the insertion hole 51.
The upper tip part of is a hemispherical part Go.

Further, between the inclined surface 26 of the lid body 4 and the rotating body 36, there is an opening 27 on the Rf! il self 1 and suicide 1
A flexible, substantially rectangular shutter body 61 is supported so as to be slidable and retractable. This shutter body 61 is slidable in the front-back direction along the outer surface perpendicular to the rotary wheel of the rotary body 3G, that is, the central axis, and lJ! The front edge 61a, which is the tip edge in the white direction, is the protrusion 5 of the rotating body 36.
9 will be hit from behind. A knob 62, which is always located within the upper opening 27, is formed at the center of the front edge of the Western shutter body 61 to protrude upward. Lower surface and inner surface l: open and said rotating body 36
A recess 63 is formed to be removably engaged with the protrusion 59 . Further, at the center of the front edge of the shutter body 61 and located near the lower part of the knob 62, a convex portion 6 having a semicircular planar shape protruding forward and abutting against the curved protrusion 59 is provided.
4 is formed and C is present.

Furthermore, within the dust collection chamber 14 of the main body case 3, a substantially U-shaped holding plate 66 is fixed, which faces the inner wall 28 of the lid 4 with a small gap therebetween.

67 is a dust collection bag made of paper, etc., and a bag-shaped filter material C
8, and a frame GO provided on the opening side of the filter material 68 and having a frontage. The dust collection bag 67 is detachably inserted into the dust collection chamber 14 with its mouth frame 69 held by the holding plate 66 and with the opening of the mouth frame G9 facing the IyJ suction port 41. The dust collection chamber 14 is installed in the dust collection chamber 14 through the frontage 2 and is accessed in and out of the dust collection chamber 14 .

Further, a sub dust collection filter 70 is detachably attached to the front surface of the partition wall 12 of the main body case 3.

Reference numeral 71 denotes a hose, which includes a bellows-shaped and bendable hose body 72, and a bent cylinder provided at one end of the hose body 72, the tip of which is removably inserted into the suction port 41 of the vacuum cleaner body 1. It consists of a shaped connecting pipe 73 and a grip fJ (not shown) provided at the other end of the hose main body 72.

The connecting portion between the hose body 72 and the connecting pipe 73 is covered by an integral cover 74 whose lower end is fitted into the upper opening 27 of the lid 4, and the lower surface of the integral cover γ4 is In this case, a box-shaped part 75 that is fitted into the four parts 4G of the rotating body 3G is integrally provided vertically. In addition, the cover integrated 74
A clamp 76 that is biased by a spring (not shown) and is removably engaged with the locking hole 47 of the rotating body 36 is movably supported. Furthermore, the cover 7 of the hose 71 is
A pair of hose side contacts 77 are vertically provided on the lower end surface of 4, and are located on the opposite side of the box-shaped portion 75 and are contacted to the right of the contact/disconnection 1 by the pair of main body side contacts 52, respectively. is electrically connected to a power supply line (not shown) provided within the hose 71. Also, near the box-shaped portion 75,
A pair of hose side contacts (not shown in the figure) are provided, which are in contact with another pair of main body side contacts 56 so as to be able to freely come and go. , is electrically connected to a manual operation section provided on the grip tube.

Further, although not shown, a suction port body is detachably connected to the grip tube of the hose 71 via an extension tube. A rotating brush and an electric motor for driving the rotating brush are provided inside the suction port body. ! ! The motive device is electrically connected to the power supply line of the hose via a power supply line provided within the extension pipe.

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

When the bowse 71 is not inserted into the suction port 41 of the rotating body 3G when it is not released, the shutter body 61 closes the rotating body 36.
The outer surface of the suction port 41 is closed.

To use the shutter body 61 in this manner, the knob 62 is pinched and the shutter body G1 is slid forward. At this time, irrespective of the position of the protrusion 59 of the rotating body 3G, regardless of the position of the rotating body 36, the front edge 61a of the shutter body 61 will eventually come into contact with the protrusion 59 from the rear. When the five protrusions are pushed by the shutter body 61, as shown by the finger in FIG.
The protrusion 59 rotates in the forward direction, and finally the protrusion 59 reaches the maximum westward position and stops rotating. Now move the shutter body 61 further forward! ! ! When the shutter body 61 is turned le, the front edge of the shutter body 61 elastically passes over the protrusion 59,
As shown in FIG. 6, a shutter body 61 is attached to this protrusion 59.
The recess 63 on the back side of the front edge of is engaged. At this time, the click feeling is increased by 19.

In this way, no matter what position the rotary body 36 is in before the shutter body 61 is closed, that is, no matter what direction it is facing, it remains in a constant position when the shutter body 61 is closed. Furthermore, since the rotating body 36 is linked to the shutter body 61 for closing the suction port 41, the rotating body 36 can be reliably and easily returned to the constant value (17,i).

However, if the front edge 61a of the C1 shutter rest 61 were completely flat, the protrusion 59 would initially be at the rearmost position, that is,
If the shutter body 610 is located on a straight line passing through the rotation axis of the rotation body 36 and parallel to the direction of the sliding knob, the shutter body 61 may not move when it comes into contact with the protrusion 59. However, in reality, when the protrusion 59 is initially located at the rearmost position, the semicircular protrusion 64 at the center of the front edge of the shutter body 61 comes into contact with the substantially cylindrical protrusion 59 first. Therefore, the rotating body 36 starts rotating smoothly from then on; eventually, the rotating body 3G returns to the above-mentioned constant position.

Furthermore, since the protrusion 59 has a substantially cylindrical shape and has a hemispherical portion 60 at its tip, the shutter body 61J3 and the rotating body 36 move smoothly and are less likely to wear.

The engagement between the protrusion 59 and the recess G3 reliably holds the shutter body 61 in the closed position, and also reliably holds the rotating body 3G in the position where the protrusion 59 is most advanced. Therefore, when the shutter body 61 is closed, the rotating body 36 will not rotate unexpectedly even if an external impact is applied.

When cleaning, first pick the knob 62 and move the shutter body 61 backward once as shown by the missing finger in FIG. 5. At that time, when the shutter body 61 is started to be spaced apart, at the same time, the protrusion 59 of the rotating body 36 is moved from the concave part 6 of the shutter body 61.
3 comes off and you can feel a click. In this way, 11 clicks are felt when opening the shutter body 61 and when closing the shutter body 61 as in the previous example dS, so the shutter body 61 has a crisp operating feel and is easy to use. After the recess 63 is removed from the protrusion 59, the seat/tutter rest 61 is separated from the protrusion 59.
Even when the shutter body G1 is checked, the position of the rotating body 36 remains at i6, the position where the protrusion 59 is the most advanced.

Next, hold the cover 14 of the hose 71 and open the suction port 4 of the rotary body 36 at the distal end of the bent connecting pipe 73.
Insert it into 1. Along with this, the clamp 7 of Bose 71
6 is engaged with the locking hole 47 of the rotating body 36.

Further, the hose side contact 78 for the power supply line is inserted into the insertion hole 51 of the rotating body 36 and comes into contact with the main body side contact 52 for the power supply line, and the boce side contact for the signal line is inserted into the insertion hole 51 of the rotating body 36.
It is inserted into the concave groove 55 and comes into contact with the rear point 5G on the main body side for the signal line. At this time, since the rotating body 36 is always in a constant position, that is, the position where the protrusion 59 is most advanced, the constriction tube 7
3 and the suction port 41 in the circumferential direction, that is, the shape P on the connecting pipe 73 side! 75 and the hose side contact 78 and the four parts 46 on the rotating body 3G side and the main body side contacts 52 and 56, the connecting pipe 73 can be easily seen in a fixed positional relationship at all times. It is possible and easy to use.

Further, a suction port body is connected to the grip tube of the hose 71 via, for example, an extension tube.

Then, when cleaning the electric blower by holding the grip pipe,
13, dust is sucked in through the suction port and stored in the dust collection bag 67 via the extension pipe and the d-spout 1. At this time, since the rotating body 36 can rotate, that is, the hose 71 can be freely rotated, cleaning can be performed easily.

In addition, the power cord connected to the AC power supply and the fixed contact 5
0, power is supplied to the electric motor of the suction port body through the power supply line relayed by the ring-shaped contact 48, the main body side contact 52, the hose side contact 78, etc., and the rotating brush is driven to scrape out dust from the carpet etc. It will be done.

Furthermore, the electric blower 13 is controlled by operating a hand operation unit connected to the control circuit via a signal line relayed by another fixed contact, a ring-shaped contact: I4, a main body side contact 56, and a hose side contact. can.

After suppression, first, the clamp 77 of the hose 71 is operated to remove it from the locking hole 47 of the suction port 41, and the connecting pipe 73 is pulled out from the suction port 41, and then the shutter body 61 is closed.

Next, another embodiment of the present invention will be described based on FIGS. 1S7 to 9.

An IFI*) r body 82, which also serves as a switch opening/closing means, is placed in a rectangular cylindrical portion 81 formed on the upper rotating body member 38 and located on the outer periphery of the rotating body 36 in the vertical direction P! Fitted and supported for one shift. And this I! A protrusion 59 integrally formed on the upper body of the upper rotating body member 38 is inserted through a through hole 83 between the upper surface of the upper rotating body member 38 and the position where the lower end surface of the cover integral 74 of the hose 71 comes into contact. The sliding body 82 is protruded outwardly so as to be freely retractable.
Is there a K? between the boss 84 formed on the lower surface of the sliding body 82 and the bottom surface of the lower rotating body member 39? '? A spring 85 serving as an elastic member always biases the protrusion 56 in the protruding direction.

In addition, pairs of movable contacts 8[11, 87 are fixed on both sides of the opening member 82 parallel to the iFI moving direction. -h1 Each of the movable contacts 86 is provided on the corresponding both sides of the rectangular cylindrical portion 81 when the projection 59 is retracted.
．． 87 and each movable contact 8G when protruding,
Fixed contacts 88, 89 remote from 87 are fixed in pairs. That is, these IJJ contacts 86, 87 and fixed contacts 88 constitute normally open switches 91, 92, respectively. The two movable contacts 86 are electrically connected to the ring-shaped contact 48 for the power supply line via a power supply line (not shown), and the two fixed contacts 88 that come into contact with these movable contacts 8G are connected to the ring-shaped contact 48 for the power supply line. A supply consisting of a lead wire 92 to the main body side contact 52 for the electric wire? 1! electrically connected via wire. Further, two other movable contacts 87 are electrically connected to the ring-shaped contact 54 for the power supply line via a signal line (1!f in the figure), and the other two movable contacts 87 are A fixed contact 89 is electrically connected to the main body side contact 56 for signal via a signal line consisting of a lead wire 93. It should be noted that the layers located on the same side of the layered body 82 are
- The paired contacts 86,87 are separated by insulating ribs 94,95 formed on the sides of this active body 82.

Then, when the hose 71 is inserted into the suction port 41 of the rotating body 36, the hose side contact 77 comes into contact with the main body side contact 52.5G, and as shown in FIG. The lower end surface presses the protrusion 59 from the insertion direction, the sliding body 82 descends against the biasing force of the spring 85, and the protrusion 59 retracts, causing the movable contact 8f3 of the active body 82 to move downward.
．． 87 respectively contact the fixed contacts 88, 89 of the rectangular tubular part 81, and the switches 90, 91 are respectively closed. In this state, the main body side contact 5 for the power supply line is connected via the switch 90.
2 is electrically connected to the ring-shaped contact 48 connected to the AC power source, and the main body side contact 56 for the signal and q line is connected to the control circuit as the power source in the vacuum cleaner main body 1 via the switch 91. It is electrically connected to the connected ring-shaped contact 54.

Further, when the hose 71 is removed from the suction port 41, as shown in FIG. 9, the hose side contact 77 separates from the body side contact 52.
6, the lFI movable body 82 moves upward due to the biasing force of the spring 85, and the protrusion 5G protrudes, and the movable contacts 8G and 87 of the FLJ body 82 move to the fixed contacts 88.
Away from 89, switch 90 and 91 listen respectively. In this state, each body-side contact 52 is electrically disconnected from the ring-shaped contact 48, 54 closer to the power source.

Therefore, the shutter body G1 remains in question and l
:) Safe, no risk of electric shock and short circuit. ,g
Even if a child accidentally inserts a conductive foreign object such as a pin into the T-hole 51 or groove 55 and this foreign object touches the main body contacts 52.5G, these main body contacts 52
．． Since 56 is disconnected from the power supply, there is no risk of electric shock or short circuit.

Incidentally, since electric shock and short circuits are particularly problematic in the power supply line, the above-mentioned switch 90 may be provided only in this power supply line.

Further, according to the above configuration, since the protrusion 59 is retractable,
The engagement and disengagement between the protrusion 59 and the four parts 63 of the shutter body 61 becomes smoother.

〔Effect of the invention〕

According to the present invention, the following effects are achieved! ? It will be done.

In the vacuum cleaner according to claim 1, the hose is slidable along the outer surface of the rotating body having the suction port into which the hose is inserted, at a position substantially perpendicular to the rotation axis and offset from the rotation axis. We have provided a protrusion that comes into contact with the leading edge of the shutter body in the sliding direction, so when the shutter body is closed, the rotary body rotates and returns to its normal position, allowing the shutter body to be heard again and the hose removed. When inserting the hose, it is only necessary to insert the hose into the suction port of the rotating body, which is always at the fixed position. Therefore, the hose can be easily inserted without having to worry about positioning the hose and the suction port in the circumferential direction. Easy to wear and easy to use. Moreover, since the rotating body is linked to the shutter body, the rotating body can be easily and reliably returned to the predetermined position without requiring any special effort.

Further, in the vacuum cleaner of claim 2, since the inner surface of the shutter body is provided with a recessed part that is engaged with the protrusion when the shutter body is completely closed, the four parts engage with the protrusion when the shutter body is opened and closed. When the shutter body is released, a click feeling is obtained, which improves the operability of the shutter body, and the engagement between the four parts and the protrusion holds the shutter body and rotating body in a fixed position, and the rotating body rotates freely when the shutter body is opened. This rotating body can be reliably stored in a fixed position without moving.

Furthermore, in the vacuum cleaner according to claim 3, the protrusion is made to be able to freely protrude and retract from the outer surface of the rotary body and is biased outward, and is provided at a position where the hose comes into contact with the body, and the hose side contact contacts the rotary body. In addition to installing a switch located between the 10 points on the side and the power supply, a switch opening/closing mechanism was provided on the protrusion to close the switch when the protrusion is protruding and to close the switch when the protrusion is recessed. Even if you touch the contacts on the main body when you are not wearing the knife, there is no risk of electric shock or injury, improving safety.

[Brief Description of the Drawings] Fig. 1 is a sectional view showing an embodiment of the vacuum cleaner of the present invention;
Figure 2 is an exploded perspective view of the same rotating body part, Figure 3 is a lower perspective view of the shutter body, Figures 4 and 5 are perspective views of the same moving body part, and Figure 6 is the same as above. 7 is a partially cutaway perspective view of a rotary body showing another embodiment of the present invention; FIGS. 8 and 9 are a sectional view of the vicinity of the protrusion in the closed state; FIG. theory of action 1fl
10 and 11 are a perspective view and a sectional view of a rotating body portion, respectively, showing an example of a vacuum cleaner considered as item (b) having the same objective as the present invention. 1.Vacuum cleaner body, 13.Electric air blower, 14.Dust collection chamber, 15.Air 0.27.Outer space [upper opening as 1, 36.Rotating body, 41.Suction Mouth, 52...1 point on the main body side, 56...Contact on the main body side, 59...Protrusion, 61.
・Shutter body, 63・φ recess, 71...Hose, 77
...Hose side 1 section, 82...12tiFJJ body as switch opening/closing means, 85...Spring as elastic body, 9
0...Switch, 91...Switch. Mem Supreme Venerable [Kawaen]

Claims (3)

[Claims] (1) An electric blower and a dust collection chamber communicating with the negative pressure side of the electric blower are provided inside, and an outer opening facing the dust collection chamber and an exhaust port communicating with the positive pressure side of the electric blower are opened to the outside. a rotating body having a suction port located inside the outer opening and rotatably supported in the vacuum cleaner main body and communicating the dust collection chamber to the outside;
A shutter body is slidably supported between the rotary body and the vacuum cleaner body along an outer surface substantially perpendicular to the rotational axis direction of the rotary body and covers the outer surface of the rotary body in an openable and closable manner; and a hose whose one end is removably inserted into the suction port of the moving body, and the leading edge of the shutter body in the sliding direction is brought into contact with a position offset from the rotation axis on the outer surface of the rotating body. A vacuum cleaner characterized by having protrusions. (2) The vacuum cleaner according to claim 1, characterized in that the inner surface of the shutter body is provided with a recess that is removably engaged with the protrusion of the rotating body when the shutter body is completely closed. (3) A main body side contact provided in the rotating body and electrically connected to a power source, and a hose side contact provided on a hose and contacting the main body side contact in a freely approaching and separating manner, and the protrusion is connected to the rotating body. The rotating body is configured to be able to slide freely in and out of the outer surface of the rotary body, and is biased outwardly by an elastic body, and is provided at a position where the hose comes into contact from the insertion direction, and electrically connected to the rotary body on the main body side. Claim characterized in that a switch connected between a contact and a power source is provided, and a switch opening/closing mechanism is integrally provided on the protrusion, which opens the switch when the protrusion protrudes and closes the switch when the protrusion is recessed. 1. The vacuum cleaner described in 1.