JP2011152446A - Joint structure of handle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To firmly connect a first handle to a second handle in a handle joint structure. <P>SOLUTION: The handle joint structure connects the first handle 11 to the second handle 13 by swingably pivoting them. The first handle 11 includes two thin-walled outside members 71 and a thick-walled middle member 72 held between both thin-walled outside members 71, to be formed in three-pronged shape. Two thick-walled connecting members 81 are provided in bifurcated shape to form an inner space 82 between both connecting members 81, and the middle member 72 of the first handle 11 is inserted into the inner space 82 of the second handle 13. Pivot holes 71A provided in the swing center positions of both thin-walled outside members 71 of the first handle 11 are thereby engaged with pivots 81A provided on the outer surfaces of both connecting members 81 of the second handle 13 under the outward elastic deformation of both outside members 71, thus connecting both handles. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a joint structure with a handle suitable for use in a cleaning tool or the like.

  As the joint structure of the handle of the cleaning tool, as described in Patent Document 1, two outer members are provided in a bifurcated shape on the first handle (handle 1), and a space between the two forked outer members is provided. The second handle (main body portion 9) is inserted, and pivot support holes provided in both outer members of the first handle are elastically engaged with protrusions provided in the second handle to swing both. Some are free to connect.

JP-A-8-228985

  In the cleaning tool of Patent Document 1, since the projections of the second handle are elastically engaged with the pivot holes of the outer members of the first handle, the shoulder portions of the outer members of the first handle ( It is necessary to reduce the thickness of the bifurcated root portion so that it can be deformed.

  For this reason, when an operating force is applied from the first handle to the second handle in use, both outer members forming the bifurcation are easily twisted and open, and there is a risk that the insertion portion between them will be loose and eventually come off. is there.

  An object of the present invention is to firmly connect a first handle and a second handle in a handle joint structure.

The invention of claim 1 is a joint structure of a handle that pivotally supports and connects the first handle and the second handle to each other, the first handle having two thin outer members, Thick middle members sandwiched between the two thin outer members are provided in a trifurcated shape , and two thick connecting members are provided in a bifurcated shape to form an intermediate space between the two connecting members. and, the write Mukoto pointing to the space within the member in a first pattern second pattern, the pivot hole of the both outer member provided on the swing center position of the two thin outer member of the first handle Under the outward elastic deformation, they are engaged with the pivots provided on the outer surfaces of the connecting members of the second handle to connect them.

According to the present invention, in the handle joint structure, the first handle and the second handle can be firmly connected.

FIG. 1 is an overall view showing a cleaning tool. FIG. 2 is a perspective view showing the cleaning tool. FIG. 3 is a sectional view showing the cleaning tool. FIG. 4 is a bottom view showing the cleaning tool. FIG. 5 is a perspective view showing the cleaning tool partially broken. FIG. 6 is a perspective view showing the dust receiver and the pickup member. FIG. 7 is a schematic diagram showing the vertical displacement structure of the pickup member. FIG. 8 is a schematic view showing a forward cleaning state of the flooring by the cleaning tool. FIG. 9 is a schematic view showing a reverse cleaning state of the flooring by the cleaning tool. FIG. 10 is a schematic diagram illustrating a carpet cleaning state using a cleaning tool. FIG. 11 is an exploded perspective view showing the joint structure of the handle. FIG. 12 is a cross-sectional view showing a handle joint structure. FIG. 13 is a cross-sectional view showing a modification of the handle joint structure. FIG. 14 is an exploded perspective view showing the arm pivot structure of the cleaning tool. FIG. 15 is a sectional view showing an arm pivoting state of the cleaning tool. 16 is a cross-sectional view taken along line XVI-XVI in FIG. FIG. 17 is a cross-sectional view showing a first modification of the arm pivot structure of the cleaning tool. FIG. 18 is a cross-sectional view showing a second modification of the arm pivot attachment structure of the cleaning tool. FIG. 19 is a cross-sectional view showing a third modification of the arm pivot structure of the cleaning tool. FIG. 20 is a cross-sectional view showing a modification of the handle joint structure.

  The cleaning tool 10 collects garbage on a cleaning surface such as a floor surface, for example, garbage such as large particles, small particles, or hair entangled with fibers such as carpets, and is shown in FIGS. As described above, the support arm 13 is coupled to the distal end portion of the handle 11 via the joint 12 so as to be swingable in the left-right direction intersecting the cleaning direction, and the frame 15 is connected to the both side arm portions 13A of the support arm 13 via the pivotally attached portions 14. Is supported in a swingable manner in the front-rear direction along the cleaning direction.

  A flexible scraper 16 is rotatably supported at the front portion along the cleaning direction of the frame 15, and a contact rotating body 18 is rotatably supported at the rear portion along the cleaning direction of the frame 15. 16 and the contact rotating body 18 are arranged in parallel.

  The scraping body 16 is coupled to a rotating shaft 16A, a scraping portion 16B composed of a brush roll in which brush hairs are implanted over the entire length of the rotating shaft 16A, and both ends of the rotating shaft 16A. It consists of speed-up tires 17 (transmission tires) on both sides. The scraping portion 16B may or may not contact the adhesive roll 21. The length of the hair of the scraping portion 16B is made to vary about 5 mm (relative to the roll diameter of 30 mm). The tires 17 on both sides are arranged on both outer sides of the frame 15 so that dust does not get caught in the tires 17, but may be provided on the inner side of the frame 15.

  The contact rotating body 18 is a driving means for the adhesive roll 21 and is a disk fixed to the rotating shaft 18A and two positions on both ends in the axial direction of the rotating shaft 18A (a plurality of positions such as three positions in the axial direction are also possible). And a speed increasing tire 19 (transmission tire) on both sides coupled to both ends of the rotating shaft 18A. The rotor 18B contacts the adhesive roll 21. The tires 19 on both sides are disposed on both outer sides of the frame 15.

  On the scraping part of the scraping body 16 and the rotor 18B of the contact rotating body 18, an adhesive roll 21 straddling them is placed and placed. The adhesive roll 21 is placed on the scraping body 16 and the contact rotating body. 18 turns around. The pressure-sensitive adhesive roll 21 includes a structure of a take-up roll of a pressure-sensitive adhesive sheet or a structure in which the surface is made of a pressure-sensitive elastomer and can be reused by cleaning the surface. The pressure-sensitive adhesive roll 21 of this embodiment can be wound by winding the pressure-sensitive adhesive sheet 21A around the core 21B and winding the pressure-sensitive adhesive sheet 21A outward with the pressure-sensitive adhesive surface of the pressure-sensitive adhesive sheet 21A facing outward. It is composed of a roll or a winding roll that can be cut.

  As shown in FIG. 3, the cleaning tool 10 has a dust collector 30 (dust collector) disposed at the rear of the frame 15 in the cleaning direction with respect to the scraping portion 16 </ b> B. The dust collector 30 has a dust receiving portion 31 attached to the frame 15 with screws 31A (FIG. 6). A lower dust stopper 32 is raised from a lower front portion of the dust receiving portion 31, and an upper dust stopper is provided at an upper front portion. A portion 33 is provided. The upper dust stopper 33 has an arc shape along the outer periphery when the rotary cover 52 of the adhesive roll holder 50 described later is entered, and the lower edge of the upper dust stopper 33 is close to the outer periphery of the scraping portion 16B (or Contact. A space between the upper edge of the lower dust stopper 32 and the lower edge of the upper dust stopper 33 is defined as a dust feeding interval (dust inlet) 34. Garbage that the scraping unit 16 </ b> B flips off is collected by the dust receiving unit 31 via the dust feed port 34.

  The dust collector 30 is provided with a rear lid 35 at the rear opening 31A of the dust receiver 31 so as to be freely opened and closed. The rear lid 35 is supported by a support shaft 35 </ b> A provided at the lower rear portion of the dust receiving portion 31 so that the lower end portion can swing freely, and includes a locking lever 36 at the upper end portion. The locking lever 36 is pivotally attached to the rear lid 35 via a shaft 37, and is locked to a locking claw 31B provided at the rear upper part of the dust receiving portion 31 by the spring force of the coil spring 38 (FIG. 3). It is rotated by the operation to unlock the locking claw 31B. When collecting dust in the dust collecting unit 30, the rear opening 35A of the dust receiving unit 31 is closed by the rear lid 35. When discharging the dust, the rear opening of the dust receiving unit 31 is opened by the rear cover 35 opened by the locking lever 36. 31A is opened and dust is removed from the rear opening 31A. A coil spring 39 for opening the rear lid that biases the rear lid 35 in the opening direction is provided between the dust receiver 31 and the rear lid 35 and around the support shaft 35A. The dust receiving part 31, the rear cover 35, etc. of the dust collector 30 are preferably made of a transparent or translucent material that can visually recognize the state of dust collection.

  The dust collector 30 is provided on the front edge side of the lower dust stopper 32 of the dust receiver 31 and on the rear of the scraper 16B of the scraper 16, and there is no gap or gap across the entire width of the scraper 16B. Via) an opposing pick-up member 40. The pick-up member 40 includes a scooping surface 41 that guides the dust scraped up from the floor by the scooping unit 16B to the dust collector 30, and a bottom surface 42 that holds the scooping surface 41 at a certain angle with respect to the floor. Have The rake face 41 includes guide walls 43 that rise from both the left and right sides. The guide wall 43 prevents trash spilled by the scraping portion 16B from spilling laterally outward, and provides a large radius at the lower corner of the portion protruding forward from the rake face 41. Prevents to dive under.

  As shown in FIGS. 5 and 6, the dust catcher 30 slides obliquely at an acute angle with respect to the bottom of the dust receiver 31 at two positions on the front edge of the lower dust stopper 32 of the dust receiver 31. A tube 44 is provided. The pickup member 40 is provided with slide rods 45 parallel to the rake face 41 at two positions on the left and right sides of the upper surface of the bottom face 42, and a connecting plate 46 is provided between the back face of the rake face 41 and the slide rod 45. A retaining ring 47A and a washer 47B can be attached to the side annular groove 45A.

  The dust collector 30, as shown in FIGS. 6 and 7, engages the slide rod 45 of the pickup member 40 with the slide cylinder 44 of the dust receiving portion 31 and removes the connecting plate 46 attached to the slide rod 45 with dust. The slide groove 44A is cut out on the bottom of the receiving portion 31 and on the front side of the slide cylinder 44, and a retaining ring 47 is attached to the upper end annular groove 45A of the slide rod 45 protruding from the slide cylinder 44 and pulled out. Stop. As a result, the dust collector 30 makes the slide rod 45 of the pickup member 40 slidable with respect to the slide cylinder 44 of the dust receiver 31, and makes the pickup member 40 displaceable in the vertical direction with respect to the dust receiver 31. . The bottom portion of the pickup member 40 is displaced in the vertical direction between a lowered position that protrudes closer to the surface to be cleaned from the bottom portion of the dust receiving portion 31 and a raised position that is substantially flush with the bottom portion of the dust receiving portion 31. Whether the pickup member 40 is in the lowered position or the raised position, the planar (or curved surface) rake face 41 is not spaced along the entire width of the scraping portion 16B of the scraping body 16 (see FIG. Dust that rises toward the opposite rear (via a gap), touches the floor as the surface to be cleaned with the bottom end of the rake face 41, and the scraping part 16B of the scraping body 16 scrapes up the dust. All the garbage is guided upward without escaping to the rear along the floor.

  As shown in FIG. 6, the dust collector 30 fixes the central torsion part of the torsion spring (elastic body) 48 to the center of the front edge of the bottom of the dust receiving part 31 covered with the pickup member 40, and both sides of the torsion spring 48. The tip is pressed against the back surface of the bottom surface 42 of the pickup member 40.

  When cleaning the flooring or the like with the cleaning tool 10, the pickup member 40 of the dust collector 30 is set to the lowered position by its own weight and the urging force of the torsion spring 48, and the lowermost end of the pickup member 40 is in contact with the floor without any gaps. The bottom part of the receiving part 31 is floated from the floor surface.

  On the other hand, when the carpet or the like is cleaned by the cleaning tool 10, the pickup member 40 of the dust collecting unit 30 is raised to the side closer to the dust receiving unit 31 due to the resistance of the carpet hair. At this time, the torsion spring 48 is compressed and elastically deformed.

  Note that the slide cylinder 44 on the dust receiving portion 31 side and the slide rod 45 on the pickup member 40 side are inserted with a margin (backlash), and the pickup member 40 slides in the slide axial direction or in the front-rear direction of cleaning. It can swing or swing left and right. Thereby, the rake face 41 and the floor surface 42 of the pickup member 40 can flexibly follow the unevenness of the floor.

  As shown in FIGS. 9 and 10, the cleaning tool 10 is provided with convex ribs 49 </ b> A that are continuous (or discontinuous) over almost the entire frontmost portion of the bottom portion on the front edge side of the dust receiving portion 31, and the pickup member 40. The bottom edge 42 of the bottom surface 42 is continuous (or discontinuous) over substantially the entire region, and an upward rising portion 49B having the same height as the convex rib 49A is provided. When the pickup member 40 is displaced upward, the upper surface of the bottom surface 42 of the pickup member 40 can be brought into contact with the convex rib 49A of the dust receiving portion 31, and the upward rising portion 49B of the pickup member 40 is set to the dust receiving portion. It is possible to make contact with the lower surface of the front edge side bottom portion of 31.

  The cleaning tool 10 is provided with an adhesive roll holder 50 above the scraping body 16 and the contact rotating body 18 in the frame 15, and places the adhesive roll 21 on the scraping body 16 and the contact rotating body 18. The adhesive roll 21 is placed on the scooping body 16 and the contact rotating body 18 while being set on both roll support shafts 53 and 54 described later of the adhesive roll holder 50 with radial play, and the contact rotating body 18 rotates. Rotate in the direction opposite to the rotation direction of the scraping body 16.

  The adhesive roll holder 50 is provided with a window frame 51 having a substantially rectangular frame shape over a range aligned with the scraping body 16 and the contact rotating body 18 in the lateral direction perpendicular to the cleaning direction on the upper surface near the front of the frame 15; A rotation cover 52 is rotatably provided on the inner surfaces of the left and right sides of the window frame 51. The rotary cover 52 has a substantially halved cylindrical body made of a transparent material such as a semicircular arc-shaped step surface or a U-shaped cross section, and has both side walls. A fixed-side roll support shaft 53 is provided on one of the left and right side walls of the rotary cover 52, and a slide-side roll support shaft 54 is provided on the other left and right side walls. The core 21B of the adhesive roll 21 can be freely rotated on both roll support shafts 53 and 54. To support.

  The adhesive holder 50 maintains the state in which the scraping body 16, the contact rotating body 18 and the adhesive roll 21 are supported by the frame 15, and the contact state between the scraping body 16, the contact rotating body 18 and the adhesive roll 21 is not changed. The isolation means for switching the contact state is configured. Specifically, the adhesive roll holder 50 is configured to fit the left and right rotation support shafts 55 projecting on the outer surfaces of both side walls of the rotation cover 52 into the shaft holes provided on the left and right side portions of the window frame 51 to rotate. The cover 52 can be opened and closed around the rotation support shaft 55. At this time, the rotation support shaft 55 of the rotation cover 52 is eccentric with respect to the roll support shafts 53 and 54. With the rotation cover 52 closed, the roll support shafts 53 and 54 are brought closer to the scraping body 16 and the contact rotating body 18 than the rotation support shaft 51 (the distance between the rotation support shaft 51 and the scraping body 16 and the contact rotating body 18). Rather, the roll support shafts 53 and 54 reduce the distance to the scraping body 16 and the contact rotating body 18). Thereby, when the rotation cover 52 rotates, the rotation cover 52 does not interfere with the scraping body 16 and the contact rotation body 18.

  As shown in FIG. 3, the rotary cover 52 has a front edge flange (having a magnet 56) having a half-arc cross section or a U-shaped cross section of the rotary cover 52 on the upper edge of the front portion of the window frame 51. The window frame 52 is closed in a state where it is positioned at the closed position in contact with the iron plate 57, covers the adhesive roll 21 supported by both roll support shafts 53, 54, the scraping body 16, the contact rotating body 18, and the adhesive roll. 21 is brought into contact. On the other hand, the window frame 51 is opened in a state where the front edge flange of the rotary cover 52 is positioned at an open position where the front edge flange contacts the iron plate 58 at the rear upper edge of the window frame 51. 18 and the adhesive roll 21, the adhesive roll 21 is exposed to the outside world, the scraping body 16 and the contact rotating body 18 and the adhesive roll 21 are brought into a non-contact state, and the old and new adhesive rolls 21 are attached to both the support shafts 53 and 54. The core 21 </ b> B is attached or detached, or the used pressure-sensitive adhesive sheet 21 </ b> A of the pressure-sensitive adhesive roll 21 set on the both roll support shafts 53 and 54 can be peeled and removed. That is, when the rotary cover 52 moves from the closed position to the open position, the rear edge portion of the rotary cover 52 opposite to the front edge flange is passed over the scraping body 16 and the contact rotating body 18, thereby scraping up. It is interposed between the body 16, the contact rotating body 18 and the adhesive roll 21. As a result, when the rotating cover 52 is opened, and the used one turn of the adhesive sheet 21A of the adhesive roll 21 set on both the support shafts 53 and 54 is peeled and removed, the adhesive sheet 21A is removed. The scraping body 16 and the contact rotating body 18 can be peeled smoothly without sticking to the outer periphery. The pressure-sensitive adhesive sheet 21 </ b> A may be one that is rolled up once for use and peeled and removed one by one, or the peeled end of the pressure-sensitive adhesive sheet 21 </ b> A may be cut using the front edge or the rear edge of the rotary cover 52. good.

The cleaning operation by the cleaning tool 10 is performed as follows.
(1) The cleaning tool 10 is advanced while the tire 17 of the scraping body 16 and the tire 19 of the contact rotating body 18 are pressed against the floor surface through the frame 15 by the operating force applied in the axial direction of the handle 11, and the scraping body 16 and the contact rotating body 18 are rotated, and at the same time, the adhesive roll 21 is rotated together.

  (2) When the scraping portion 16B of the scraping body 16 scoops up the dust on the floor surface, the dust is guided by the scooping surface 41 of the pickup member 40 constituting the dust collector 30, and behind the scraping body 16. Large dust is sent to the dust receiver 31 from the scooping surface 41 and captured, and the dust adhering to the scraping portion 16B and the dust clinging to the scraping portion 16B are adhered to the adhesive surface of the adhesive roll 21. To be adsorbed and captured.

  (3) When it is visually confirmed that a large amount of dust has been captured on the entire circumference of the adhesive surface of the adhesive roll 21, the rotation cover 52 of the adhesive roll holder 50 is opened, and one round of the adhesive sheet 21A is peeled, cut and removed. Expose the new adhesive surface.

(4) When it is visually confirmed that a large amount of dust has accumulated in the dust receiving portion 31 of the dust collector 30, the rear cover 35 is opened, and the dust in the dust receiving portion 31 is discarded.
The cleaning tool 10 can move not only forward but also backward.

  The cleaning tool 10 has (A) the structure of the pickup member 40, (B) the joint structure of the handle 11, and (C) the pivot attachment structure of the arm 13 as follows.

(A) Structure of pickup member 40 (FIGS. 3, 4, 8 to 10)
As shown in FIGS. 3 and 4, the cleaning tool 10 includes a wiping member 61 that extends across the entire width in the left-right direction of the front side portion adjacent to (being close to) the bottom end portion of the rake face 41 on the bottom surface 42 of the pickup member 40. .

  Further, a sub-wiping member 62 is provided on the rear side portion of the bottom surface 42 of the pickup member 40 that is separated from the rake face 41. The sub wiping member 62 is provided only in a narrow range at the center of the bottom surface 42 in the left-right direction.

  The wiping members 61 and 62 are made of a flexible material having cushioning properties such as a raised cloth and a sponge. In the present embodiment, the wiping member 61 (same for 62) is made of a raised cloth in which a large number of raised hairs 61B are planted on a flat base 61A.

  The cleaning tool 10 is provided with depressions 63 and 64 in the portion of the bottom surface 42 of the pickup member 40 where the wiping members 61 and 62 are provided, and the base 61A of the wiping member 61 is inside the depression 63 through an adhesive 63A such as an adhesive tape. Then, the base of the wiping member 62 is also bonded to the bottom of the recess 64 through an adhesive such as an adhesive tape.

  Details of the cleaning operation of the cleaning tool 10 when the pickup member 40 includes the wiping members 61 and 62 will be described.

(1) Forward cleaning state of flooring (Fig. 8)
When the cleaning tool 10 moves forward on the flooring, dust and small dust on the flooring are collected by the wiping member 61 on the bottom surface 42 adjacent to the lowest end of the rake face 41 of the pickup member 40 and collected by the wiping member 61. The dust overflowing forward from the lowermost end portion of the scooping surface 41 is scraped up on the scooping surface 41 by the scooping portion 16B (brush roll) of the scooping body 16. Therefore, fine dust and small dust can be collected without escaping to the rear of the wiping member 61. The dust remaining between the wiping member 61 and the lowermost end portion of the rake face 41 during the forward movement is removed during the backward movement described later.

  Since the wiping members 61 and 62 are provided at two positions before and after the bottom surface 42 of the pickup member 40, the bottom surface 42 made of hard plastic is not brought into contact with the floor, and no abnormal noise is generated on the floor. Further, hard dirt such as dirt dust is not directly pressed between the bottom surface 42 and the floor, and this is not pressed against the floor, thereby preventing the floor from being damaged. Although the sub wiping member 62 may be provided over the entire width of the bottom surface 42, the resistance at the time of carpet cleaning is increased, and the above-described bottom surface 42 is provided only at the center of the bottom surface 42 so that the above-described bottom surface 42 does not contact the floor. Therefore, in this embodiment, it is provided only at the center of the bottom surface 42.

(2) Backward cleaning condition of flooring (Fig. 9)
Since the cleaning tool 10 is made so that the length of the brush hair of the scraping portion 16B of the scraping body 16 varies by about 5 mm as described above, some of the hair of the scraping portion 16B is part of the dust collecting portion 30. The upper dust stopper 33 comes into contact with the resistance, and the pick-up surface 41 of the pickup member 40 comes into contact with the resistance. When the cleaning tool 10 moves backward, the front tire 17 slightly floats and the force for driving the scraping body 16 is small, so the scraping portion 16B (brush roll) does not rotate due to the resistance. When the cleaning tool 10 moves forward, the operating force from the handle 11 is applied to the front tire 17 and the force for driving the scraping body 16 increases, so that the scraping portion 16B rotates to overcome the resistance.

  That is, when the cleaning tool 10 is moved backward on the flooring, the scraping portion 16B does not rotate, so that dust and small dust remaining from the wiping member 61 to the lowermost end portion of the scooping surface 41 are scraped up during the advancement of the above (1). It moves toward the part 16B and gets entangled between the brushes of the scraping part 16B. Therefore, the remaining dust does not remain streaks on the floor. Further, the dust entangled with the brush of the scraping portion 16B is scraped up with the rotation of the scraping body 16 at the next advance, and is captured by the dust collector 30 or the adhesive roll 21.

(3) Carpet cleaning condition (Fig. 10)
When cleaning the carpet of the cleaning tool 10 with the carpet, the wiping members 61 and 62 bonded to the recesses 63 and 64 of the floor surface 42 of the pickup member 40 are fluttered when the raised bristles 61B are pushed by the hair of the carpet. small.

  Further, since the bottom surface 42 of the pickup member 40 is made of hard plastic and the carpet hair pushes up the wide hard floor surface 42, the pickup member 40 does not sink into the carpet more than necessary, and the resistance is small. The pick-up member 40 receives an appropriate resistance due to the resistance between the raised portions 61B of the wiping members 61 and 62 and the carpet, and slightly sinks into the carpet. Therefore, the rake face 41 facilitates scooping up dust on the carpet surface. In addition, the pick-up member 40 is stepped on the brush tip of the scraping portion 16B because the tip of the pick-up member 40 rises too much by the action of the convex rib 49A on the dust receiving portion 31 side and the upward rising portion 49B on the pickup member 40 side, The tip does not go down too much and sticks into the hair of the carpet.

According to the present embodiment, the following operational effects can be obtained.
(a) When the cleaning tool 10 advances, even if fine dust or thin dust on the floor tries to pass under the rake face 41 of the pickup member 40, the wiping member 61 immediately collects the dust. The dust collected by the wiping member 61 and overflowing from the lowermost end portion (lower end edge) of the rake face 41 is scraped up by the scraping body 16. Therefore, the dust on the floor can be collected in the dust receiving portion 31 and the adhesive roll 21 without escaping from behind the rake face 41 of the pickup member 40 to the rear.

  (b) The wiping member 61 and the sub wiping member 62 are provided at two places on the back and front of the back surface of the pickup member 40. Thereby, since the bottom surface 42 made of hard plastic or the like of the pickup member 40 is not brought into contact with the floor, the bottom surface 42 can prevent noise from rubbing the floor, and the bottom surface 42 rubs hard dirt such as dirt dust on the floor. It is possible to prevent floor scratches.

  (c) Since the wiping member 61 is made of a cushioned flexible material such as a raised cloth, the wiping member 61 comes into contact with the floor without any gaps and collects dust. Brushed fabric is more durable and has less frictional resistance than sponge.

  (d) Since the lengths of the brush rolls of the scraping body 16 vary, some hairs come into contact with the rake face 41 and the upper dust stopper 33 and receive resistance. When the cleaning tool 10 moves backward, the front tire 17 slightly floats, and the force that drives the scraping body 16 is small, so that the scraping body 16 does not rotate due to the resistance. Since the scraping body 16 does not rotate, the dust remaining from the wiping member 61 to the lowermost end portion of the scooping surface 41 when moving forward moves toward the brush roll of the scraping body 16 and is entangled between the hairs of the brush roll. Therefore, the above-mentioned garbage remaining at the time of reverse travel does not remain in a streak shape on the floor. The dust entangled between the hairs of the brush roll is scraped up and collected by the dust receiving part 31 and the adhesive roll 21 at the next advancement.

  (e) The wiping members 61 and 62 are bonded to the recesses 63 and 64 provided on the bottom surface 42 of the pickup member 40. Accordingly, when the carpet is cleaned, the raised portions 61B of the wiping members 61 and 62 are pushed by the carpet hair, and the resistance is small. When the depressions 63 and 64 are not present, the base 61A of the wiping members 61 and 62 protrudes from the bottom surface 42 of the pickup member 40, and the front edge of the base 61A hits the hair of the carpet, resulting in a large resistance.

(B) Joint structure of handle 11 (FIGS. 3, 11, and 12)
The cleaning tool 10 connects the handle 11 (first handle) and the support arm 13 (second handle) to each other through the joint 12 so as to be swingable (FIGS. 3 and 11).

  The handle 11 is provided with two thin outer members 71, 71 and a thick middle member 72 sandwiched between the outer members 71, 71 so as to form a trifurcated shape along the front and rear (cleaning direction). Both side spaces 73 and 73 are formed between the members 71 and 71 and the middle member 72. Both the outer members 71 and 71 and the middle member 72 are provided with penetrating pivot support holes 71A and 72A (pivot support portions) that are coaxial with each other.

  The support arm 13 is provided with two thick connecting members 81, 81 on the outer side surface of the center so as to form a bifurcated shape in parallel with each other in the front-rear direction (cleaning direction), and an intermediate space 82 between the connecting members 81, 81. Form. Both connecting members 81, 81 include a pivot 81 </ b> A (pivot support) that faces outward and a small protrusion 81 </ b> B that faces an inner space 82.

  The handle 11 and the support arm 13 form the joint 12 as follows. The middle member 72 of the handle 11 is inserted into the middle space 82 of the support arm 13, and the connecting members 81, 81 of the support arm 13 are inserted into the both side spaces 73, 73 of the handle 11. 71 and 71 are elastically expanded and contracted, and a pivotal support hole 71A provided in both outer members 71 and 71 of the handle 11 is elastically applied to a pivot 81A projecting from the outer surfaces of both connecting members 81 and 81 of the support arm 13. Engage the projections and depressions to connect them. The pivot 81 </ b> A is arranged in a vertical plane along the cleaning direction (front-rear direction) of the cleaning tool 10. In addition, the pivotal support hole 72A provided in the middle member 72 of the handle 11 is lightly unevenly engaged with the small protrusions 81B on the inner surfaces of the connecting members 81, 81 of the support arm 13.

  The handle 11 and the support arm 13 are provided with a click stop mechanism 90 around their insertion part. The click stop mechanism 90 stores the coil spring 91 and the ball 92 in a storage hole provided at the bottom of the middle space 82 of the support arm 13, and the ball 92 biased by the spring 91 is moved to the middle member 72 of the handle 11. It is possible to selectively engage with any one of the recesses 93 provided at a plurality of circumferential positions on the arcuate tip surface.

According to the present embodiment, the following operational effects can be obtained.
(a) When connecting the handle 11 and the support arm 13, the middle member 72 of the handle 11 is simply or lightly inserted into the middle space 82 between the two connecting members 81 of the support arm 13 without being deformed. Since both the connecting members 81 are not deformed, both the middle member 72 and both the connecting members 81 can be thickened. Even if an operating force is applied from the handle 11 to the support arm 13 so that the middle member 72 and both connecting members 81 are squeezed, they are not deformed because they are thick, and they do not easily loosen at the insertion part between them and come off. To prevent that.

  (b) Since both pivotal portions (pivotal shaft 81A) of both coupling members 81 of the support arm 13 are elastically engaged with the pivotal support portions (pivotal support hole 71A) of both outer side members 71 of the handle 11, both outer members Even if the shoulder portion of 71 is thin and can be deformed, the operating force applied from the handle 11 to the support arm 13 is borne by the middle member 72 and both connecting members 81 described above, and the outer members 71 are squeezed. Can be prevented from opening. Both the outer members 71 are not easily deformed, and their pivotal support portions (the pivotal support holes 71A) can be stably pivoted and maintained on the pivotal support portions (the pivotal shaft 81A) of the two connecting members 81.

  (c) A click stop mechanism 90 is provided around the handle 11 and the second insertion part. Therefore, the user can hold the handle 11 and the support arm 13 at any selected swing position.

  (d) In the cleaning tool 10, the above-mentioned (a) to (c) can be realized.

  (e) The pivot 81 </ b> A of the pivot that connects the handle 11 and the support arm 13 is arranged in a vertical plane along the cleaning direction. When the cleaning tool 10 moves forward, the operating force applied from the handle 11 to the support arm 13 firmly presses the tire 17 of the cleaning tool against the floor, improving the cleaning workability and maintaining stable connection between the handle 11 and the support arm 13. it can.

  FIG. 20 shows a modification of the joint structure of the handle 11. The handle 11 in FIG. 20 is similar to the handle 11 in FIG. 12 in that two thin outer members 71 and 71 and a thick middle member 72 sandwiched between the outer members 71 and 71 are arranged in the front-rear direction (cleaning direction). The slits 73 and 73 are formed on both sides between the outer members 71 and 71 and the middle member 72. Both the outer members 71, 71 are provided with pivots 74 (pivot parts) facing the inner side slits 73.

  The support arm 13 is provided with two thick connecting members 81, 81 on the outer side surface of the center so as to form a bifurcated shape along the front and rear (in the cleaning direction), and a middle slit 82 between the two connecting members 81, 81. Form. Both connecting members 81, 81 are provided with a penetrating pivot support hole 83 (pivot support section).

  The handle 11 and the support arm 13 form the joint 12 as follows. The middle member 72 of the handle 11 is inserted into the middle slit 82 of the support arm 13, and the connecting members 81, 81 of the support arm 13 are inserted into the slits 73, 73 on both sides of the handle 11. 71 and 71 are elastically expanded / contracted, and the pivot shaft 74 provided on both outer members 71 and 71 of the handle 11 is elastically engaged with the pivotal support holes 83 of both the connecting members 81 and 81 of the support arm 13 to both Are connected. The pivot 74 is disposed in a vertical plane along the cleaning direction (front-rear direction) of the cleaning tool 10. According to this modification, the same operational effects as those of the above-described embodiment can be obtained.

FIG. 13 shows a reference example of the joint structure of the handle 11. In FIG. 13, the handle 11 has a four-pronged shape in which two thick outer members 101, 101 and two thin middle members 102 sandwiched between the outer members 101, 101 are arranged in the front-rear direction (cleaning direction). Both side spaces 103, 103 are formed between the outer members 101, 101 and the middle members 102, and a space 104 is formed between the middle members 102, 102. Both outer members 101, 101 are provided with small protrusions 101 A that face both side spaces 103, and both middle members 102, 102 are provided with pivots 102 A (pivot portions) that face both side spaces 103.

  The support arm 13 is provided with two thick connecting members 111, 111 on the outer side surface of the center so as to form a bifurcated shape so as to be arranged in the front-rear direction (cleaning direction), and an intermediate space 112 is provided between the connecting members 111, 111. Form. Both connecting members 111, 111 are provided with penetrating pivot support holes 111 </ b> A (pivot supports) that are coaxial with each other.

  The handle 11 and the support arm 13 form the joint 12 as follows. Both middle members 102 of the handle 11 are inserted into the middle space 112 of the support arm 13, and the connecting members 111, 111 of the support arm 13 are inserted into the both side spaces 103, 103 of the handle 11. The members 102 and 102 are elastically expanded / contracted, and the pivots 102A provided on both the middle members 102 and 102 of the handle 11 are elastically engaged with the pivot holes 111A provided on the two connecting members 111 and 111 of the support arm 13 in an elastic manner. And connect the two. The pivot shaft 102 </ b> A is disposed in a vertical plane along the cleaning direction (front-rear direction) of the cleaning tool 10. The small protrusions 101 </ b> A provided on both outer members 101 of the handle 11 lightly engage with the concave and convex portions 111 </ b> A of the connecting members 111 and 111 of the support arm 13.

According to this reference example, the following operational effects are obtained.
(a) When connecting the handle 11 and the support arm 13, both outer members 101 of the handle 11 are simply or lightly inserted into the outer sides of both connecting members 111 of the support arm 13 without being deformed, and both connecting members of the support arm 13 are connected. Since 111 also does not deform, both the outer members 101 and the connecting members 111 can be both thickened. Even if an operating force is applied to the support arm 13 from the handle 11 and the outer members 101 and the connecting members 111 are about to be squeezed, they are not deformed because they are thick, and it is difficult for them to be loose at the insertion part of both. Prevent from coming off.

  (b) Since both pivot members (the pivot holes 111A) of the connecting members 111 of the support arm 13 are elastically engaged with the pivot portions (the pivot shafts 102A) of the middle members 102 of the handle 11, both the middle members Even if the shoulder portion of 102 is thin and can be deformed, the operating force applied to the support arm 13 from the handle 11 is borne by the outer members 101 and the connecting members 111 of the above-mentioned (a), It is possible to prevent twisting deformation. Both the middle members 102 are not easily deformed, and the pivotal support portions (the pivot shafts 102A) of the both middle members 102 can be stably pivoted and maintained on the pivotal support portions (the pivot support holes 111A) of the two connection members 111.

(C) Pivoting structure of support arm 13 (FIGS. 14 to 19)
The cleaning tool 10 pivotally attaches both side arms (both sides) 13A of the support arm 13 with the handle 11 to both outer sides of the frame 15 via the pivots 14 as follows (FIGS. 14 to 14). FIG. 16).

  On both outer sides of the frame 15, a pivot 121 (pivot) is fixedly provided in a portion sandwiched between the front tire 17 and the rear tire 19. On the other hand, a shaft hole 122 (a pivoted support portion) is provided at the distal end portion of the side arm portions 13A of the support arm 13. The cleaning tool 10 includes positioning means 130 and rotation resistance means 140 when the shaft hole 122 on the support arm 13 side is pivotally attached to the pivot 121 on the frame 15 side. The positioning means 130 positions the position formed by the both side arm portions 13A of the support arm 13 with respect to the axial direction of the pivot 121 of the frame 15, and a fixed gap G (see FIG. 15) between the outer surface of the frame 15 and the both side arm portions 13A. ). The rotation resistance means 140 applies a certain rotation resistance force to the support arm 13.

  In this embodiment, the positioning means 130 is a clip 131 such as a C-shaped ring. As shown in FIGS. 15 and 16, the clip 131 is engaged with the outer periphery of the annular portion 132 provided at the tip portion around the shaft hole 122 of the both-side arm portion 13 </ b> A, and the central portion in the circumferential direction of the inner peripheral surface of the clip 131. A string-like stopper portion 131A projecting over the groove portion 132A formed in the lower portion of the annular portion 132 around the shaft hole 122 of both arm portions 13A is passed, and the tip end portion of the stopper portion 131A is further moved to the frame 15 side. Is engaged with an annular groove 121A provided on the outer periphery of the pivot shaft 121. The clip 131 engages only a part of the tip of the stopper portion 131 </ b> A with a groove side wall of the annular groove 121 </ b> A of the pivot 121 in a part of the circumferential direction of the groove.

  In this embodiment, the rotation resistance means 140 is composed of a cushion ring 141 that is compressed and interposed between the outer surface of the frame 15 and the gap G between the side arm portions 13A around the pivot 121. Make sliding contact with the side and frictional contact. The constant sliding resistance force of the cushion ring 141 becomes the constant rotational resistance force of the support arm 13. The cushion ring 141 is formed of rubber, non-woven fabric, metal, resin, or the like. When a rubber oil impregnated with silicon oil is used, the coefficient of static friction becomes low, and a certain resistance force can be generated from the start of movement.

According to the present embodiment, the following operational effects can be obtained.
(a) The cleaning tool 10 can position the position formed by the both side arm portions 13 </ b> A of the support arm 13 with respect to the axial direction of the pivot 121 of the frame 15 by the positioning means 130 regardless of the dimensional accuracy of the support arm 13. In addition, the rotation resistance means 140 can apply a certain rotation resistance force to the support arm 13 and improve the user's operational feeling.

  (b) The clip 131 is engaged with the support arm 13 and is engaged with the annular groove 121A provided on the pivot axis of the frame 15 through the groove 132A formed around the shaft hole 122 of the support arm 13 so as to be compact. The positioning means 130 can be configured.

  (c) By engaging the clip 131 with the annular groove 121A of the pivot of the frame 15 at a part in the circumferential direction of the groove, the contact area between the clip 131 and the pivot is reduced, and the both arm portions 13A of the support arm 13 are The variation in the elastic narrowing force reduces the variation in the rotational resistance force that can occur between the support arm 13 and the pivot as much as possible. As a result, the rotational resistance force applied to the support arm 13 can be managed by the rotational resistance means 140 as much as possible, and a constant rotational operation force is applied to the support arm 13.

(d) The rotation resistance means 140 can be simply configured by the cushion ring 141.
FIGS. 17 to 19 each show a modification of the pivot attachment structure of the support arm 13.

  17 uses a friction ring 141A that is in sliding contact with the side surfaces of both arm portions 13A as the rotation resistance means 140, and a compression coil spring 142 is interposed between the outer surface of the frame 15 and the end surface of the friction ring 141A. Is. The constant sliding resistance force of the friction ring 141 </ b> A becomes the constant rotational resistance force of the support arm 13. As the friction ring 141, the same material as the cushion ring 141 described above can be adopted. The spring 140 can easily adjust the sliding resistance force that the friction ring 141A exerts on the both side arm portions 13A.

  In the modified example of FIG. 18, as the rotation resistance means 140, a friction shoe 143 loaded in a storage hole provided in the side arm portion 13 </ b> A so as to open to the shaft hole 122 of the side arm portion 13 </ b> A is used. The friction shoe 143 is backed up by the compression coil spring 144, partially protrudes into the shaft hole 122, and slidably contacts the outer peripheral surface of the pivot 121. The constant sliding resistance force of the friction shoe 143 becomes the constant rotational resistance force of the support arm 13. As the friction shoe 143, the same material as that of the cushion ring 141 can be adopted. The sliding resistance force exerted on the pivot 121 by the friction shoe 143 can be easily adjusted by the spring 144.

  19, the head screw 151 is inserted from the outer end surface of the hollow pivot 121 of the frame 15, the tip locking claw 151A of the screw 151 is locked to the inner surface of the frame 15, and the intermediate step surface of the screw 151 By causing 151B to contact the outer end surface of the pivot 121, the distance between the outer surface of the frame 15 and the intermediate step surface 151B of the screw 151 is made constant. Around the shaft hole 122 of both side arm portions 13A of the support arm 13, an annular convex surface 122A that contacts the outer surface of the frame 15 and an annular surface 122B that contacts the intermediate step surface 151B of the screw 151 are provided. The screw 151 constitutes the positioning means 130, and the annular convex surface 122A and the annular surface 122B of the arm portions 13A are positioned through a slight gap within the distance between the outer surface of the frame 15 and the intermediate step surface 151B of the screw 151. The A cushion ring 152 constituting the rotation resistance means 140 is compressed and loaded between the head surface 151C of the screw 151 and the annular surface 122B of the both side arm portions 13A, and the cushion ring 152 exerts a constant effect on the both side arm portions 13A. The sliding resistance force becomes the constant rotational resistance force of the support arm 13.

  According to the present invention, in the handle joint structure, the first handle and the second handle can be firmly connected.

10 Cleaning tool 11 handle (first handle)
12 Joint 13 Support arm (second handle)
71 Outer member 72 Middle member 71A, 72A Pivot hole (Pivot part)
73 Both Sides Space 81 Connecting Member 81A Pivot (Pivot)
81B Small protrusion 82 Middle space 90 Click stop mechanism

Claims (5)

A joint structure of a handle that pivotally supports and connects the first handle and the second handle,
A first handle, provided so as to form the two thin outer member, the thin both thick in sandwiched outer member member from each other 3 The shape,
Two thick connection members are provided so as to form a bifurcated shape, and an intermediate space is formed between the two connection members.
First by one of the members in the handle second write Mukoto pointing to the space in the handle, outside the first pattern of the two thin outer member both said outer member pivot hole provided in the swing center position of the A handle joint structure for engaging and connecting the pivots provided on the outer surfaces of both connecting members of the second handle under elastic deformation . The connecting member of the second handle includes the pivot that faces outward and a small protrusion that faces the inner space of the inside, and a pivot hole provided in the middle member of the first handle has a second handle. The joint structure according to claim 1, wherein the small protrusion is lightly uneven. The handle joint structure according to claim 1 or 2 , wherein a click stop mechanism portion is provided around an insertion portion between the first handle and the second handle. A cleaning tool using the handle joint structure according to any one of claims 1 to 3 . The cleaning tool according to claim 4 , wherein a swinging central axis that pivotally supports and connects the first handle and the second handle is disposed in a vertical plane along the cleaning direction.

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