JP2011030679A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner preventing dust from being caught in the interior of a suction port body, suppressing the energy loss of air flowing in the interior of the suction port body, preventing the generation of noise in the suction port body and facilitating the insertion of another pipe such as an extension pipe into the suction port body. <P>SOLUTION: This vacuum cleaner includes the suction port body 7 whose one end is communicated with a cleaner body side and whose other end allows the insertion of another pipe, wherein the suction port body 7 has a pipe member 8 allowing the insertion of the other pipe, a brush member 9 being projectable towards the pipe member 8, and an engagement portion 33 projecting to the inside of the pipe member 8 to be engageable with the other pipe inserted into the pipe member 8. In a state where no other pipe is inserted into the pipe member 8, the engagement member 33 is held in such a state as being shifted in the other side of the projecting direction to the inside of the pipe member 8. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner in which one end of a mouthpiece communicates with the main body side of the vacuum cleaner and the other end can be inserted with another pipe.

  Conventionally, a vacuum cleaner provided with two suction mouths is known (for example, refer to patent documents 1). Of the two mouthpieces, the first mouthpiece is formed to have a substantially T-shape. The first suction body is attached to the tip of a hose body that extends from the cleaner body that sucks and collects dust through at least an operation tube and an extension tube in this order. The second suction body is formed to have a substantially cylindrical shape, and is disposed, for example, between the operation tube and the extension tube. That is, one end of the second suction body communicates with the main body side of the vacuum cleaner via the operation tube, and another pipe such as an extension tube can be inserted into the other end.

  In this electric vacuum cleaner, when the extension tube is removed from the other end of the second suction body, the brush member protrudes from the other end so that cleaning can be performed using the second suction body. It has become. Moreover, this vacuum cleaner can be cleaned using the 1st suction body attached to the front-end | tip of an extension pipe by inserting an extension pipe in the other end of a 2nd suction body as before. It has become.

  In such a vacuum cleaner, in order to prevent the extension pipe from coming out of the second suction body when the dust is sucked through the first suction body attached to the tip of the extension pipe, The mouthpiece has a hook-like engaging portion that engages with the extension tube. The hook-shaped engagement portion is biased by a spring so as to protrude into a cylinder that receives the extension tube, and the hook-shaped engagement portion is fitted into a recess provided on the peripheral surface of the extension tube. It is adapted to engage with the extension tube.

  The hook-shaped engaging portion is linked to a button provided on the second mouthpiece, and by pressing this button, the engagement with the extension pipe is released, and the second The extension tube can be removed from the mouthpiece.

JP 2006-14760 A

However, in the conventional vacuum cleaner (for example, refer to Patent Document 1), even after the extension tube is removed from the second suction body, when the button is released, it is urged as described above. The hook-shaped engaging part protrudes again into the cylinder that received the extension tube.
When the hook-shaped engaging portion protrudes into the cylinder in this way, the engaging portion interferes with the extension tube when the extension tube is inserted again into the second suction body. Insertion may not be possible.
Further, when the dust is sucked through the second suction body, the hook-like engaging portion remains protruding in the cylinder which becomes the suction passage, so that the dust is easily caught on the engaging portion. Become. In particular, fiber waste such as lint, hair, and pills is difficult to remove when caught on the engaging part. .

Then, the 1st subject of this invention is providing the vacuum cleaner provided with the suction body which prevented refuse from being caught.
Moreover, the 2nd subject of this invention is providing the vacuum cleaner provided with the suction body which suppressed the energy loss of the distribute | circulating air.
Moreover, the 3rd subject of this invention is providing the vacuum cleaner provided with the suction body which prevented generation | occurrence | production of noise.
A fourth object of the present invention is to provide an electric vacuum cleaner in which another pipe can be easily inserted into the mouthpiece when another pipe such as an extension pipe is further attached to the tip of the mouthpiece.

  The present invention that has solved the above problems is a vacuum cleaner comprising a vacuum cleaner main body, and a suction body that has one end communicating with the vacuum cleaner main body and another pipe inserted into the other end. The pipe member that can be inserted into the other pipe, the brush member that can project with respect to the pipe member, the operation portion that can be pushed down, and the brush member that is housed on the pipe member side are locked. A locking member and an integral member integrally formed with an engaging portion that protrudes inward of the pipe member and can be engaged with the other pipe inserted into the pipe member; In a state where the other pipe is not inserted into the pipe member, the engagement portion is held in a state changed to the opposite side to the projecting direction toward the inside of the pipe member.

  According to the present invention, it is possible to provide a vacuum cleaner that prevents dust from being caught in the mouthpiece. Or according to this invention, the vacuum cleaner which suppressed the energy loss of the air which distribute | circulates in a mouthpiece can be provided. Or according to this invention, the vacuum cleaner which prevented generation | occurrence | production of the noise in a suction body can be provided. Alternatively, according to the present invention, it is possible to provide a vacuum cleaner in which another pipe such as an extension pipe can be easily inserted into the mouthpiece.

It is a perspective view of the vacuum cleaner concerning this embodiment. It is a perspective view of the 2nd mouthpiece which constitutes the vacuum cleaner concerning this embodiment. It is a disassembled perspective view of the 2nd suction body which comprises the vacuum cleaner which concerns on this embodiment. It is a perspective view of the pipe member which comprises the 2nd suction body of FIG. It is a disassembled perspective view of the brush member which comprises the 2nd mouthpiece of FIG. It is a fragmentary perspective view which shows a mode that the front side half which comprises the brush member of FIG. (A) is a perspective view of the integral member which comprises the 2nd suction body of FIG. 3, (b) is a model which shows the positional relationship of the latching | locking part and rail member when an integral member is a 1st state. FIG. 4C is a schematic diagram showing the positional relationship between the locking portion and the rail member when the integral member is in the second state. It is a perspective view which shows the mode of the pipe member which assembled | attached the brush member and the integral member. It is the perspective view which shows the mode inside the case which comprises the 2nd suction mouth body of FIG. 3, and is the figure seen from the front side of the case. It is a figure which shows the mode of the inside of the 2nd suction body from which the brush member does not protrude with respect to a pipe member, (a) is the perspective view which notched the front part of the 2nd suction body, (b) ) Is a side view in which the front portion of the second mouthpiece is partially cut away. It is a figure which shows the mode of the inside of the 2nd suction body from which the brush member protruded with respect to the pipe member, (a) is the perspective view which notched the front part of the 2nd suction body, (b) FIG. 5 is a side view in which a front portion of a second mouthpiece is partially cut away. It is a conceptual diagram which shows the other usage condition in a 2nd suction body. It is a conceptual diagram which shows the other attachment aspect in a 2nd suction body. It is a key map showing the modification of the 2nd mouthpiece. It is a key map showing the modification of the 2nd mouthpiece.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. In the following description, the front-rear direction refers to the upstream side of the air sucked by the cleaner body with reference to the cleaner body, and the downstream side as the rear side. Moreover, the vertical and horizontal directions in the second suction body constituting the vacuum cleaner of the present invention are based on the vertical and horizontal directions shown in FIG.

As shown in FIG. 1, the vacuum cleaner 1 of the present embodiment includes a cleaner body 2, a hose body 3, an operation tube 4, an extension tube 5, a first mouthpiece 6, and a second mouthpiece. A body 7 is provided.
The second suction body 7 corresponds to a “suction body” in the claims and also corresponds to a “ventilating pipe”. That is, the second suction body 7 can suck air from the front side of the second suction body 7 in a state where the extension pipe 5 and the first suction body 6 are removed from the front side of the second suction body 7. Therefore, when the extension pipe 5 and the first suction body 6 are attached from the front side of the second suction body 7, the extension pipe 5 and the first suction body 6 are connected. To allow air to pass, it functions as a “ventilator”. However, not only the second suction body 7 but also the hose body 3, the operation tube 4, and the extension tube 5 function as “ventilating tubes” because they allow air to pass therethrough.

  Inside the vacuum cleaner main body 2, an electric blower that generates a suction force (not shown), a dust collection unit that stores dust (dust) collected by the suction force of the electric blower, and the like are built in.

  The rear end of the hose body 3 is connected to the cleaner body 2 so as to communicate with the dust collecting portion of the cleaner body 2, and the operation tube 4 is attached to the front end of the hose body 3.

  The operation tube 4 is a tube body provided with a handle grip 4a held by an operator and a hand switch SW. The hand switch SW is configured to be able to perform operations such as on / off of the electric blower described above, switching of the output of the electric blower, and on / off of a cleaning rotor (not shown) built in the first suction body 6.

  The extension pipe 5 includes a pipe body 5a disposed on the rear side and a pipe body 5b disposed on the front side. The inner diameter of the tube body 5a is set to be larger than the outer diameter of the tube body 5b, and the extension tube 5b is adjusted by adjusting the length of the tube body 5b fitted into the tube body 5a. Is telescopic to a desired length. In addition, the code | symbol 5c of FIG. 1 is a stopper which prescribes | regulates the insertion length (extension / contraction amount of the extension pipe | tube 5) of the pipe body 5b with respect to the pipe body 5a.

  The first suction body 6 has a substantially T-shape and is connected to the front end of the extension pipe 5. The first suction body 6 is attached to the operation tube 4 via the extension tube 5 so that the floor surface can be easily cleaned while the operator is standing, and has a substantially T-shape. The floor can be cleaned widely.

  As described above, the second suction body 7 is connected to the operation tube 4 so that one end (rear end) thereof communicates with the cleaner body 2 side. The second suction body 7 has a tubular structure so that air sucked through the first suction body 6 and the extension pipe 5 can flow toward the cleaner body 2 side. Details of the second mouthpiece 7 will be described later.

  In this vacuum cleaner 1, between the first suction body 6 and the extension pipe 5, between the extension pipe 5 and the second suction body 7, and between the second suction body 7 and the operation pipe 4. Can be engaged and disengaged by an engaging mechanism (integral member 10 (see FIG. 3)) having a hook-shaped engaging portion 33 (see FIG. 10B), which will be described later. The agreement is being solved. Further, when the first suction body 6, the extension pipe 5, the second suction body 7, and the operation pipe 4 are fitted together as in the original, they are engaged with each other by the engagement mechanism described above. ing.

Next, the second mouthpiece 7 will be described.
As shown in FIG. 2, when the extension pipe 5 is removed, the second suction body 7 has a brush member 9 that protrudes forward (protrudes out). A pair of connector pins P1 and P1 are provided at the rear of the second suction body 7. The connector pins P1 and P1 are arranged on the hand switch SW side so that the cleaning rotor (not shown) built in the first suction body 6 can be operated by the hand switch SW (see FIG. 1) of the operation tube 4. Are electrically connected to sockets S1 and S1 that are electrically connected to each other. The electrical connection between the second suction body 7 and the extension pipe 5 is performed by the connector pins P2 and P2 of the extension pipe 5 and the sockets S2 and S2 of the second suction body 7 (see FIG. 4). Is called. Incidentally, in FIG. 2, reference numeral 8 is a pipe member to be described later, reference numeral 12 is a case to be described later, reference numeral 31 is a button (operation unit) constituting an integral member to be described later, and reference numeral 37 is This is an opening that allows the button 31 to face the outside of the case 12. Reference numeral 5d denotes a recess into which a hook-shaped engagement portion 33 (see FIG. 7A) to be described later fits. When other devices such as a dust detector are present in the first suction body 6 and the extension pipe 5, the number of connector pins may be three or more.

  As shown in FIG. 3, the second suction body 7 includes a pipe member 8, the brush member 9, an integral member 10 (also referred to as a clamp member) that constitutes the engagement mechanism, and the pipe member 8. A spring member 32 disposed between the upper peripheral surface and the integrated member 10, a spring member 11 that causes the brush member 9 to protrude forward, and a case 12 are configured. The brush member 9 corresponds to a “protrudable member” in the claims, the spring member 11 corresponds to “biasing means” in the claims, and the spring member 32 in the claims. It corresponds to the “biasing part” in the range.

  As will be described in detail later, the pipe member 8 is fitted into the rear side of the brush member 9 at the front portion thereof, and the brush member 9 is slidably assembled, and the integrated member 10 is supported at the upper front portion thereof. It is assembled. When the pipe member 8 assembled with the brush member 9 and the integral member 10 is housed in the case 12, the spring member 11 is disposed between the inner rear end of the case 12 and the rear side of the brush member 9. As a result, the brush member 9 is urged in a direction of protruding (projecting) from the pipe member 8.

As shown in FIG. 4, the pipe member 8 is a pipe body that is long in the front-rear direction, and “another pipe” in the scope of claims, that is, the extension pipe 5 in this embodiment (FIG. 3). Reference) is inserted. And the slits 15 and 15 are provided in the front part of the pipe member 8 so that it may extend in the front-back direction at the both right and left sides. The slits 15 and 15 are arranged so that a head 20a (see FIG. 5) of a stopper piece 20 (described later) attached to a brush member 9 (see FIG. 5) described later is fitted from the outside and protrudes inward. Will be.
As will be described later, the length of the slit 15 is set so as to match the moving distance when the brush member 9 protrudes.

  Further, the pipe member 8 includes a support rib 16 having a semicircular cutout so as to support a shaft support portion 30 (see FIG. 7) of the integral member 10 described later on the front upper side, and the connector pins P1, P1 and Sockets S2 and S2, and support ribs 17 for supporting connection wiring (not shown) between the connector pin P1 and the socket S2 are provided. Incidentally, as described above, the sockets S2 and S2 have a structure in which the connector pins P2 and P2 provided on the extension pipe 5 (see FIG. 2) are inserted. A taper is formed so as to increase the diameter from the front toward the front. Thus, the insertion ports 14 and 14 formed with the taper facilitate the insertion of the connector pins P2 and P2 into the sockets S2 and S2.

  As shown in FIG. 4, a through-hole 13 is formed on the upper side of the front part of the pipe member 8 so as to project a locking part 29 (see FIG. 7), which will be described later, into the pipe member 8. Has been.

  A concave portion 8 a is formed on the rear upper side of the pipe member 8. The concave portion 8a is configured such that when the rear portion of the pipe member 8 is fitted into the front portion of the operation tube 4 (see FIG. 1), the hook-like engagement portion of the operation tube 4 is fitted. That is, the pipe member 8 is prevented from coming out of the operation tube 4 by fitting the hook-shaped engagement portion into the recess 8a.

  As shown in FIG. 5, the brush member 9 includes a front half 18 constituting the front part and a rear half 19 constituting the rear part. In FIG. 5, the flocking of the front half 18 is partially omitted for the convenience of drawing.

The front half 18 includes a frame member 23 having a flocked portion 21 and a joint 22 to the rear half 19.
The frame member 23 has an inner space 23b having substantially the same shape as the outer peripheral shape of the front portion of the pipe member 8 so as to surround the front portion of the pipe member 8 (see FIG. 3). A flocked portion 21a is provided on the flocked portion 21 provided on the frame member 23 so as to protrude forward. Moreover, the frame member 23 has the rib 21b standingly arranged inside the hair transplant 21a so that the hair transplant 21a may not fall down to the inner side space 23b side.

  The joint portion 22 is formed by a rear end edge of the wall body extending rearward from the frame member 23, and the joint portion 22 is the front-rear direction, in other words, the axial direction of the second suction body 7 (see FIG. 2). It is formed in the shape of a horseshoe that is inclined at a predetermined angle with respect to the top. The inclination angle in the present embodiment is set to 60 degrees with respect to the front-rear direction.

  As shown in FIG. 6, an arcuate ridge 22 a is formed on the rear end edge so as to project outward from the horseshoe shape. A protrusion 23 a is formed above the open side of the horseshoe shape, that is, on the rear side of the frame member 23. In FIG. 6, flocking is omitted for convenience of drawing.

  Referring to FIG. 5 again, the rear half 19 includes a frame member 24 having a joint portion 27 with the front half 18, a slide portion 25 that slides with respect to the pipe member 8, and a stopper piece 20. ing.

  The joint portion 27 is formed by a horseshoe-shaped rib that is erected on the front side of the frame member 24 to be described next and opens upward, and the joint portion 22 of the front half 18 is formed inside the rib. An arcuate groove 28 is formed so as to be fitted on the protruding ridge 22a. The joint 27 is inclined so as to have substantially the same angle as the joint 22 of the front half 18. That is, when the protrusions 22a of the joint portion 22 are fitted into the grooves 28 of the joint portion 27, the central axis of the front half body 18 and the central axis of the rear half body 19 are aligned on the same line. And the junction part 22 and the junction part 27 are joined via the protruding item | line 22a and the groove | channel 28, Therefore The front side half body 18 which has the flocked part 21 becomes rotatable with respect to the rear side half body 19. FIG. .

  In addition, a recess 26 that is recessed inside the frame member 24 is formed at the front upper end of the frame member 24. In this recess 26, the projection 23a of the frame member 23 shown in FIG. That is, when the front half 18 rotates with respect to the rear half 19, the projection 23 a is fitted into the recess 26, so that the central axis of the front half 18 and the central axis of the rear half 19 are the same. It can be positioned to line up on the line.

The slide portion 25 has a shape in which a cylindrical peripheral wall is partially cut out along the axial direction, and is arranged so as to extend rearward from the frame member 24, so that a cross-sectional shape perpendicular to the axial direction is upward. It is an open substantially C-shape.
As described above, the slide portion 25 is adapted to be fitted into the front portion of the pipe member 8.

In addition, attachment holes 35 for the stopper piece 20 are formed on both sides of the slide portion 25.
The mounting hole 35 has a rectangular shape corresponding to the planar shape of the support portion 20b of the stopper piece 20 described below, and receives the support portion 20b to fix the stopper piece 20 to the slide portion 25.

The stopper piece 20 is L-shaped and includes the rectangular support portion 20b and the head portion 20a.
As described above, the head 20 a of the stopper piece 20 is disposed so as to protrude through the slit 15 inside the pipe member 8 fitted in the slide portion 25.
That is, the slide portion 25 slides with respect to the pipe member 8 at a distance that allows the head portion 20a of the stopper piece 20 to move in the front-rear direction within the slit 15 of the pipe member 8.
Incidentally, when the extension pipe 5 is inserted into the pipe member 8 (see FIG. 3) fitted in the slide portion 25, the head portion 20 a of the stopper piece 20 that protrudes to the inside of the pipe member 8 through the slit 15. In addition, the extension pipe 5 comes into contact.

  The slide portion 25 is provided with a spring seat 36 for fixing one end of the spring member 11 described above. The other end side of the spring member 11 having one end fixed to the spring seat 36 extends toward the inner rear end of the case 12 (see FIG. 3) described later.

  And the slide part 25 is equipped with the rail member 34 which guides the latching | locking part 29 (refer Fig.7 (a)) which comprises the integrated member 10 demonstrated below. The rail member 34 corresponds to a “holding member” in the claims.

  The rail member 34 is provided along each of a pair of upper end edges of the slide portion 25 extending rearward from the frame member 24. Since this rail member 34 has a close relationship with the arrangement of the integral member 10, it will be described together with the structure of the integral member 10 described below.

  As shown in FIG. 7A, the integral member 10 constituting the engagement mechanism includes a button 31, a pair of leg portions 31b, a hook-like engagement portion 33, and the distal ends of the leg portions 31b. And a locking portion 29 that locks the brush member 9 in cooperation with the rail member 34 described above, and the button 31, the engaging portion 33, and the locking portion 29 are integrally formed. However, the button 31, the engaging portion 33, and the locking portion 29 may be formed of different members. Here, the button 31 corresponds to an “operation unit” in the claims.

  The button 31 is disposed so as to face the opening 37 formed in the upper part of the case 12 shown in FIG. Moreover, the button 31 is provided with the flange part 31a which protrudes to the circumference | surroundings from the lower end, as shown to Fig.7 (a).

The leg portion 31b extends from the flange portion 31a shown in FIG. 7A to the left and right sides, and as shown in FIG. 8, the upper peripheral surface of the pipe member 8 fitted in the slide portion 25 of the brush member 9 Arranged to straddle the top.

  Referring to FIG. 7 (a) again, the engaging portion 33 has a hook shape with the tip extending forward from the flange portion 31a bent downward. The front end surface of the hook-shaped portion of the engaging portion 33 is inclined with respect to the front-rear direction, and the rear end surface of the hook-shaped portion of the engaging portion 33 is substantially perpendicular to the front-rear direction (see FIG. )reference). As described above, since the front end surface of the bowl-shaped portion is inclined, the engagement portion 33 is smoothly pushed up and the integrated member 10 is rotated by the rear portion of the extension pipe 5 coming into contact with the front end surface. Can do. Further, since the front end surface of the hook-shaped portion is inclined, the engagement portion 33 is engaged even when the tip of the engagement portion 33 slightly protrudes into the pipe member 8 through the through hole 13 as will be described later. It is possible to suppress the dust from being caught on the tip of the portion 33 to some extent. In addition, since the rear end surface of the bowl-shaped portion is substantially vertical, it is possible to prevent the extension pipe 5 inserted into the pipe member 8 from coming off. The engaging portion 33 includes a pair of shaft support portions 30, 30 between a flange-shaped tip and a base end on the flange portion 31 a side, and each of the shaft support portions 30, 30 extends from the engagement portion 33. It is formed so as to protrude on both sides. The shaft support portions 30, 30 are supported by the support rib 16 provided on the front upper side of the pipe member 8 (see FIG. 4) so that the engaging portion 33 is rotated around the shaft support portions 30, 30. It has become.

  As shown in FIG. 7A, the locking portion 29 has a substantially rectangular parallelepiped shape, and is provided at the tip of the leg portion 31b. As shown in FIGS. 7 (a) and 7 (b), the locking portion 29 is first in contact with the front end surface of the rail member 34 as shown in FIGS. In this state, as shown in FIG. 7C, the second state where the upper side of the locking portion 29 is in contact with the lower surface of the rail member 34 is taken.

  Here, referring again to FIG. 3, the spring member 32 is provided on the back side of a spring seat (not shown) provided on the upper peripheral surface of the pipe member 8 and the button 31 (see FIG. 7A) of the integrated member 10. It is a compression coil spring arrange | positioned between the spring seats which are not shown in figure. The button 31 receives a reaction force corresponding to the spring constant of the spring member 32 from the pipe member 8. Incidentally, as described above, in the spring member 32 in this embodiment, the integrated member 10 is assembled to the pipe member 8 and is accommodated in the case 12 as shown in FIG. When facing 37, the flange portion 31a (see FIG. 7A) contacts the periphery of the opening 37 on the back side of the case 12, so that the spring member 32 always generates the reaction force described above. Yes.

  Here, the first state shown in FIGS. 7A and 7B is that the tip of the engaging portion 33 is rotated downward about the shaft support portion 30 by the reaction force based on the spring member 32. The state in which the locking portion 29 is pivoted upward about the shaft support portion 30 and is in contact with the front end surface of the rail member 34. Incidentally, the distal end of the engaging portion 33 in the first state projects into the pipe member 8 (see FIG. 4) through the above-described through hole 13 (see FIG. 4) and is an extension inserted into the pipe member 8. It will fit in the recessed part 5d (refer FIG. 2) provided in the rear part of the pipe | tube 5 (refer FIG. 2).

  The second state shown in FIG. 7C is that when the button 31 is pressed, the front end of the engaging portion 33 is rotated upward about the shaft support portion 30 and the locking portion 29 is moved. A state in which it pivots downward about the shaft support portion 30 and contacts the lower surface of the rail member 34. In the second state, it is preferable that the tip of the engaging portion 33 does not protrude into the pipe member 8 through the through hole 13, but the tip of the engaging portion 33 enters the pipe member 8 through the through hole 13. It may be slightly protruding (less than the first state). That is, the position of the tip of the engaging portion 33 in the second state is such that the tip of the engaging portion 33 cannot fit into the recess 5d of the extension pipe 5 inserted into the pipe member 8. Compared with the position of the tip of the engaging portion 33, it is sufficient to return to the direction opposite to the projecting direction into the pipe member 8.

  Accordingly, as will be described later in detail, when the brush member 9 is located at the rearmost position with respect to the pipe member 8, in other words, as shown in FIG. 1, the extension pipe 5 is inserted into the second suction body 7 and connected. When it is in the state, the integrated member 10 maintains the first state. Further, when the brush member 9 is located in the foremost position with respect to the pipe member 8, in other words, when the extension pipe 5 is removed from the second suction body 7 as shown in FIG. The integrated member 10 maintains the second state. That is, the distance that the locking portion 29 slides on the lower surface of the rail member 34 from the first state where the locking portion 29 is in contact with the front end of the rail member 34 until the brush member 9 protrudes most forward is: It is equal to the length that the brush member 9 protrudes. Therefore, the length of the rail member 34 needs to ensure at least the length that the brush member 9 protrudes (protrudes) from the pipe member 8. Therefore, the length of the rail member 34 only needs to be longer than the length in which the brush member 9 protrudes (protrudes) from the pipe member 8 (for example, the rail member 34 has a length at which the rear end of the rail member 34 slides). It may be the length up to the rear end of the portion 25).

As shown in FIG. 2, the case 12 accommodates the pipe member 8 in which the brush member 9 and the integral member 10 are assembled.
As shown in FIG. 9, the case 12 has a circular opening 38 on the rear side. A spring seat 39 is provided around the opening 38 in the case 12. The other end of the spring member 11 having one end attached to the spring seat 36 of the brush member 9 (sliding portion 25) shown in FIGS. 5 and 8 is attached to the spring seat 39. When the rear portion of the pipe member 8 (see FIG. 4) is projected from the opening 38 of the case 12 shown in FIG. 9 (see FIG. 2), the spring member 11 (see FIG. 8) is the brush member. 9 to the pipe member (see FIG. 2) fixed in the case 12 by being compressed between the spring seat 36 (see FIG. 8) and the spring seat 39 (see FIG. 9) of the case 12. The brush member 9 is biased toward the front.

Next, operation | movement of the vacuum cleaner 1 which concerns on this embodiment is demonstrated.
In the vacuum cleaner 1 shown in FIG. 1, the second suction body 7, the extension pipe 5, and the first suction body 6 are connected to the tip of the operation tube 4 in this order. Cleaning can be performed by sucking dust through 6.

At this time, the second suction body 7 has the rear portion of the extension pipe 5 inserted in the front portion of the pipe member 8 as described above.
In the second suction body 7, the brush member 9 does not protrude from the pipe member 8 accommodated in the case 12 as shown in FIGS. 10 (a) and 10 (b). Incidentally, in FIG. 10A, the description of the extension pipe 5 and the operation pipe 4 is omitted for the convenience of drawing. In FIG. 10B, the rear portion of the extension tube 5 is indicated by a virtual line, and the operation tube 4 is not shown.

In the positional relationship between the brush member 9 and the pipe member 8 that do not protrude in this way, as shown in FIG. 10A, the head 20a of the stopper piece 20 (see FIG. 5) attached to the brush member 9 is The rear end of the slit 15 provided in the pipe member 8 is in contact. And as shown in FIG.10 (b), the rear end of the extension pipe | tube 5 will contact | abut to this head 20a.
Therefore, the brush member 9 is prevented from retreating further than the pipe member 8.

Further, in the positional relationship between the integrated member 10 and the brush member 9 at this time, as shown in FIGS. 10A and 10B, the locking portion 29 of the integrated member 10 is connected to the rail member 34 of the brush member 9. Is in contact with the front end of the. That is, the locking portion 29 is in the first state shown in FIGS. 7 (a) and 7 (b).
Therefore, even if the brush member 9 is urged forward by the spring member 11 (see FIG. 8), the engaging portion 29 is in contact with the front end of the rail member 34. It is prevented from projecting to.

Further, in the positional relationship between the integral member 10 and the pipe member 8 in the first state, as shown in FIGS. 10A and 10B, the tip of the hook-shaped engagement portion 33 of the integral member 10 is Since it pivots downward about the shaft support 30, it protrudes into the pipe member 8 through the through hole 13 of the pipe member 8.
Therefore, as shown in FIG. 10B, the tip of the hook-shaped engagement portion 33 is fitted into the recess 5 d of the extension pipe 5 inserted into the pipe member 8. As a result, the extension pipe 5 is prevented from coming out of the pipe member 8.

  Next, in the integrated member 10 in the first state shown in FIG. 10B, when the button 31 is pressed against the reaction force received through the spring member 32, the hook-like engaging portion 33 is moved. The tip rotates upward about the shaft support 30. As a result, the engagement of the hook-shaped engagement portion 33 with the recess 5d of the extension tube 5 is released.

On the other hand, the locking portion 29 rotates downward about the shaft support portion 30. That is, as shown in FIG. 7B, the locking portion 29 is brought into contact with the lower surface of the rail member 34 from the first state in contact with the tip of the rail member 34 as shown in FIG. It is displaced to the second state in contact.
As a result, the latching portion 29 that is in contact with the front end of the rail member 34 shown in FIG. 10B is released downward, so that the brush member 9 is moved forward by the spring member 11 (see FIG. 8). Move forward. The extension pipe 5 inserted into the pipe member 8 is pushed forward by the head 20a of the stopper piece 20 that moves forward in the slit 15 together with the brush member 9.

  When the extension tube 5 comes out of the second mouthpiece 7 as shown in FIG. 2, the brush member 9 projects forward as shown in FIGS. 11 (a) and 11 (b). Incidentally, in FIG. 11 (a) and (b), description of the operation tube 4 is abbreviate | omitted.

In the positional relationship between the protruding brush member 9 and the pipe member 8, the head 20a of the stopper piece 20 (see FIG. 5) attached to the brush member 9, as shown in FIG. It is in contact with the front end of the slit 15 provided in the pipe member 8.
Therefore, the brush member 9 is prevented from protruding beyond the pipe member 8.

Further, in the positional relationship between the integrated member 10 and the brush member 9 at this time, as shown in FIGS. 11A and 11B, the locking portion 29 of the integrated member 10 is connected to the rail member 34 of the brush member 9. It is in contact with the lower surface of. That is, the locking part 29 is in the second state shown in FIG.
Accordingly, the locking portion 29 of the integrated member 10 is prevented from being displaced upward by coming into contact with the lower surface of the rail member 34 even if it is going to be displaced upward by the reaction force received via the spring member 32. That is, the rail member 34 prohibits the integral member 10 from being displaced from the second state to the first state. In other words, the rail member 34 (holding member) holds the second state.

  Further, in the integrated member 10 in the second state, as shown in FIGS. 11A and 11B, the tip of the hook-shaped engaging portion 33 of the integrated member 10 is connected to the integrated member 10 in the first state. The state displaced upward is maintained. In other words, the integral member 10 is configured so that the tip of the hook-shaped engaging portion 33 is opposite to the projecting direction to the inside of the pipe member 8 when the extension pipe 5 (other pipe) is not inserted into the pipe member 8. The state is changed to the side. In other words, as described above, even when the brush member 9 projects forward with respect to the pipe member 8, the integrated member 10 projects the tip of the hook-shaped engagement portion 33 to the inside of the pipe member 8. The state is changed to the opposite side of the direction.

  And as shown in FIG. 1, when connecting the extension pipe 5 to the 2nd suction body 7 again, the extension pipe 5 is inserted in the pipe member 8 shown to Fig.11 (a). At this time, the extension pipe 5 moves the head portion 20a of the stopper piece 20 (see FIG. 5) protruding into the pipe member 8 through the slit 15 shown in FIG. As the head 20a moves backward, the brush member 9 also moves backward.

  When the head 20 a moves to the position shown in FIG. 10A, the integrated member 10 returns to the first state by a reaction force received through the spring member 32. That is, the engaging portion 29 abuts against the front end of the rail member 34 to prevent the brush member 9 from protruding, and the tip of the hook-like engaging portion 33 is fitted into the recess 5 d of the extension tube 5. Thus, the extension pipe 5 is prevented from coming out of the pipe member 8.

According to the vacuum cleaner 1 as described above, the following operational effects can be achieved.
In the vacuum cleaner 1 according to this embodiment, the brush member 9 projects forward by removing the extension pipe 5 from the second suction body 7. As a result, the protruding brush member 9 can be used when dust is sucked through the second suction body 7.

And the vacuum cleaner 1 which concerns on this embodiment is different from the conventional vacuum cleaner (for example, refer patent document 1), even after removing the extension pipe 5 from the 2nd suction mouth body 7, The tip of the hook-shaped locking portion 29 that has engaged with the recess 5 d of the extension tube 5 does not protrude into the pipe member 8.
Therefore, according to the vacuum cleaner 1 according to the present embodiment, it is possible to prevent dust from being caught by the hook-shaped locking portion 29 in the pipe member 8 of the second suction body 7.

  Moreover, according to the vacuum cleaner 1 which concerns on this embodiment, as above-mentioned, since it can prevent that a garbage catches on the hook-shaped latching | locking part 29, the flow of the air suck | inhaled by the caught garbage can be prevented. It is possible to suppress an increase in energy loss due to disturbance.

  Moreover, according to the vacuum cleaner 1 which concerns on this embodiment, as above-mentioned, since it can prevent that garbage catches on the bowl-shaped latching | locking part 29, it disturbs the flow of the air suck | inhaled with garbage. Noise can be prevented.

  Moreover, according to the vacuum cleaner 1 according to the present embodiment, even after the extension tube 5 is removed, the tip of the hook-shaped locking portion 29 does not protrude into the pipe member 8, When the extension pipe 5 is inserted into the second suction body 7 again, the hook-shaped locking portion 29 does not interfere with the extension pipe 5, so that the extension pipe 5 can be easily inserted.

As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, It can implement with a various form.
In the said embodiment, although the 2nd suction mouth 7 has the hair transplant part 21, the mere "ventilation pipe" which does not have the hair transplant part 21 may be sufficient as this invention. In addition, even if it is a ventilation pipe | tube which does not have the hair transplant part 21, it functions as a suction body which attracts | sucks dust.

  In the above embodiment, the center axis of the front half 18 and the center axis of the rear half 19 constituting the second suction body 7 are arranged on the same line. By rotating the front half 18 with respect to the body 19, the central axis of the front half 18 and the central axis of the rear half can be arranged to intersect. That is, the flocked portion 21 can be changed with respect to the front-rear direction of the second mouthpiece 7.

  Further, as shown in FIG. 12, the second mouthpiece 7 in which the flocked portion 21 is inclined is attached to the tip of the operation tube 4 via the extension tube 5, so that the The configuration is suitable for high-level cleaning.

  Moreover, as shown in FIG. 13, the 1st suction body 6 can be attached to the 2nd suction body 7 shown in FIG. At this time, the front half 18 and the rear half 19 (see FIG. 5) of the second mouthpiece 7 are arranged with respect to the rear half 19 so that the central axes thereof are aligned on a straight line. It needs to be rotated.

Moreover, in the said embodiment, although the front half body 18 can be rotated with respect to the rear half body 19 of the 2nd suction mouth body 7, the hair transplant part 21 can be inclined, but this invention May be configured such that the flocked portion 21 can be inclined via a hinge.
As shown in FIG. 14, the second mouthpiece 7 is attached to the second mouthpiece 7 via a hinge H provided with a flocked portion 21 at the front portion of the rear half 19 and substantially at the center in the vertical direction. The second mouthpiece 7 can be tilted by the flocked portion 21 turning around the hinge H. In FIG. 14, reference numeral 12 denotes a case, reference numeral 8 denotes a pipe member, reference numeral 10 denotes an integral member, and reference numeral 11 denotes a spring member.
Further, as shown in FIG. 15, the hinge H may be provided at a position which is a front portion of the rear half 19 and is shifted downward. Such a second suction body 7 may be configured such that the front half 18 of the brush member 9 rotates and protrudes with respect to the pipe member 8.
The technical idea of the present invention is not only the suction body in which the brush member 9 slides in the front-rear direction with respect to the pipe member 8, but also the brush member 9 rotates back and forth using either the upper side or the lower side of the pipe member 8 as a fulcrum. You may apply to the moving mouthpiece. The brush member 9 protrudes forward with respect to the pipe member 8 when sliding or rotating.

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 2 Vacuum cleaner main body 3 Hose body 4 Operation pipe 5 Extension pipe 6 1st suction body 7 2nd suction body (suction body)
9 Brush member 10 Integral member 11 Spring member (biasing means)
14 Plug 18 Front half 19 Rear half 21 Flocking part 25 Slide part 29 Locking part 31 Button (operation part)
32 Spring member (biasing part)
33 engaging portion 34 rail member (holding member)
H Hinge

Claims (6)

In a vacuum cleaner comprising a vacuum cleaner body and a suction body into which one end communicates with the vacuum cleaner body and another pipe can be inserted at the other end.
The mouthpiece is a pipe member into which the other pipe can be inserted;
A brush member capable of protruding with respect to the pipe member;
Engage with an operation part that can be pushed down, a locking part that locks the brush member in a state of being housed on the pipe member side, and the other pipe inserted into the pipe member protruding inside the pipe member An integral member integrally formed with the possible engaging portion;
With
The integral member holds the engaging portion in a state changed to the opposite side to the projecting direction toward the inside of the pipe member when the other pipe is not inserted into the pipe member. Electric vacuum cleaner. In a vacuum cleaner comprising a vacuum cleaner body, and a suction body into which one end communicates with the vacuum cleaner body and another pipe can be inserted at the other end.
The mouthpiece is a pipe member into which the other pipe can be inserted;
A brush member capable of protruding with respect to the pipe member;
Engage with an operation part that can be pushed down, a locking part that locks the brush member in a state of being housed on the pipe member side, and the other pipe inserted into the pipe member protruding inside the pipe member An integral member integrally formed with the possible engaging portion;
With
The integral member holds the engaging portion in a state changed to a side opposite to the projecting direction toward the inside of the pipe member in a state where the brush member projects from the pipe member. Electric vacuum cleaner. In a vacuum cleaner comprising a vacuum cleaner main body and a ventilation pipe having one end communicating with the vacuum cleaner main body and another pipe inserted into the other end,
The ventilation pipe is
A pipe member into which the other pipe can be inserted; and
An operation unit that can be pressed;
An engagement portion that is engageable with the other pipe inserted into the pipe member and changes in conjunction with a change in the operation portion;
An urging portion for urging the engaging portion in a direction protruding inward of the pipe member;
With
The engaging portion can be engaged with the other pipe in a state of protruding to the inside of the pipe member, and is opposite to the protruding direction to the inside of the pipe member in conjunction with a pressing operation to the operating portion. Can be disengaged from the other pipe in a state where the pipe member is changed to the side opposite to the projecting direction toward the inside,
The electric vacuum cleaner according to claim 1, wherein the engaging portion is in a state changed to a side opposite to a projecting direction toward the inside of the pipe member when the other pipe is not inserted into the pipe member. The vacuum cleaner according to claim 3,
The ventilation pipe is a member that can jump out of the pipe member;
A biasing means for biasing the poppable member in the popping direction;
From the state in which the popping-out member starts popping out in conjunction with the release of the engagement of the pipe member by the engaging portion to the state in which the popping member protrudes at least with respect to the pipe member, A vacuum cleaner characterized by holding the engaging portion in a state changed to the opposite side to the protruding direction. The vacuum cleaner according to claim 3,
The ventilation pipe is a member that can jump out of the pipe member;
A biasing means for biasing the poppable member in the popping direction;
The poppable member has a holding member that contacts the engaging portion and holds the engaging portion in a state changed to a side opposite to the projecting direction toward the inside of the pipe member,
The holding member pops out from a state where the popping-out member starts popping out to a state where it pops out at least with respect to the pipe member in conjunction with the disengagement of the pipe member by the engaging portion. A vacuum cleaner characterized in that it is formed extending in the direction of movement of possible members. The vacuum cleaner according to claim 4 or 5,
The pop-out member has a brush.

Images