JP6869867B2 - Cleaning tool - Google Patents

Description

The present invention relates to a cleaning tool.

Patent Documents 1 and 2 include cleaning tools in which the tip of the handle and a cleaning head provided with a non-woven fabric sheet or the like are swingably connected by a joint.

In the cleaning tool described as the prior art in Patent Document 1, the joint has a bilateral connecting shaft protruding outward from the tip of the handle and a bilateral connected portion standing at two opposite positions of the cleaning head. It is composed of. The both-sided connecting shaft protruding from the tip of the handle is inserted into a shaft hole provided in the both-sided connected portion by slightly elastically deforming the both-sided connected portion made of a plastic member of the cleaning head. As a result, the handle is oscillatingly connected to the cleaning head in the front-rear direction.

In the cleaning tool described in Patent Document 2, the joint has a bilateral connecting shaft protruding outward from a spherical body attached to the tip of the handle, and a bilateral connected portion standing at two opposite positions of the cleaning head. Is configured to have. The both-sided connecting shaft protruding from the spherical body is inserted into a shaft hole provided in the both-sided connected portion by slightly elastically deforming the plate-shaped both-sided connected portion of the cleaning head. As a result, the handle is oscillatingly connected to the cleaning head in the front-rear direction.

Further, in the cleaning tool described in Patent Document 2, the vertical surface around the connecting shafts on both sides of the spherical body is brought into frictional contact with the inner wall surface around the shaft holes provided in the connected portions on both sides standing on the cleaning head. ing. As a result, when the cleaning tool is lifted to change the cleaning location, the connecting portions on both sides of the cleaning head are free to swing with respect to the connecting shafts on both sides of the spherical body at the tip of the handle, and the cleaning head is fluttered. It suppresses and tries to maintain the relative posture of the cleaning head with respect to the handle.

Jitsuto 3067322 Gazette Japanese Patent No. 3234147

The joint provided by the cleaning tool described in Patent Documents 1 and 2 is inserted while the both side connecting portions are slightly deformed when the both side connecting shafts are inserted into the shaft holes provided in the both side connected portions of the cleaning head. It is not possible to secure a sufficient length for inserting the connecting shafts on both sides into the shaft holes. Therefore, when the cleaning head caught in a narrow gap between the wall and furniture is forcibly pulled out or the cleaning head is unexpectedly dropped while using the cleaning tool, the connecting shafts on both sides come off from the shaft hole. There was a risk, and it was difficult to secure the pull-out strength.

Further, the joint provided in the cleaning tool described in Patent Document 2 has a function of suppressing fluttering of the cleaning head with respect to the handle, but the verticality around the connecting shafts on both sides in the spherical body due to the progress of use of the cleaning tool. Wear of the surface and the inner wall surface around the shaft hole provided on both side connected portions standing on the cleaning head may reduce the fluttering suppressing function. For this reason, for example, when cleaning the upper and lower steps of the stairs, the cleaning head once lifted fluctuates and the posture with respect to the handle changes, and the posture of the cleaning head is corrected so that it can be adapted to the next cleaning location. It was troublesome to use the tools.

An object of the present invention is to improve the pull-out strength of the cleaning head and the function of suppressing fluttering with respect to the joint in a cleaning tool that connects the tip of the handle and the cleaning head by a joint.

The invention according to claim 1 is a cleaning tool in which a tip portion of a handle and a cleaning head are swingably connected by a joint, and the joint includes a support member, a core, and a repulsive means. The support member is provided on both sides of the bifurcated main body and the bifurcated main body so as to project from both side legs facing each other to the outside along the first axis and provided at two opposite positions of the cleaning head. Each of the connecting portions has a bilateral connecting portion that is swingably connected with the first shaft as the swing center, and both sides of the connecting portion are connected to both sides of the cleaning head from a stationary position that can be connected to both sides of the connecting portion. The core can be displaced to a retracted position where it can be disconnected from the connected portion, the core is inserted within the distance between the legs facing each other in the main body of the support member, and the connecting portions on both sides of the support member are retracted from the stationary position. The two-sided connecting portion can be maintained in a stationary position by preventing the displacement to the center, and the repulsive means is interposed between the main body portion of the support member and the core to exert a repulsive force on the core. A state in which the sliding portion provided on the core is made slidable on the sliding portion provided on the cleaning head in a pressure contact state, and the support member and the core are inserted into the main body of the support member. Then, it is inserted into the bifurcation of the bifurcated mounting part at the tip of the handle, and the bifurcated mounting part and the core are swung around the second shaft as the swing center by the mounting shaft inserted through them. It is designed to be connected as much as possible.

According to the present invention, in a cleaning tool that connects the tip of the handle and the cleaning head with a joint, it is possible to improve the pull-out strength of the cleaning head with respect to the joint and the function of suppressing fluttering.

FIG. 1 is an overall perspective view showing the cleaning tool of the first embodiment. FIG. 2 is a front sectional view showing a cleaning tool. FIG. 3 is a side sectional view showing a cleaning tool. FIG. 4 is an exploded perspective view of a main part of the cleaning tool. FIG. 5 is an enlarged cross-sectional view of a main part of FIG. FIG. 6 is an enlarged cross-sectional view of a main part of FIG. FIG. 7 is a perspective view showing a support member. FIG. 8 is a perspective view showing a core. FIG. 9 is a front sectional view showing the cleaning tool of the second embodiment. FIG. 10 is a side sectional view showing a cleaning tool. FIG. 11 is an exploded perspective view of a main part of the cleaning tool. FIG. 12 is an enlarged cross-sectional view of a main part of FIG. FIG. 13 is an enlarged cross-sectional view of a main part of FIG. FIG. 14 is a perspective view showing a support member. FIG. 15 is a perspective view showing a core.

(Example 1) (FIGS. 1 to 8)
As shown in FIGS. 1 to 3, in the cleaning tool 1, the tip of the handle 10 and the cleaning head 20 are swingably connected by a joint 30, and the cleaning head 20 is moved back and forth in the cleaning advancing direction at the tip of the handle 10. Allows it to swing freely from side to side.

In the present specification, the direction orthogonal to the cleaning advancing direction (X direction) is the left-right direction, the axis along the left-right direction is referred to as the first axis X, and the direction along the cleaning advancing direction (Y direction) is the front-back direction. As the direction, the direction along the front-back direction is referred to as the second axis Y (FIG. 1). That is, in the cleaning tool 1, the handle 10 is connected to the cleaning head 20 via the joint 30 so as to be swingable in the front-rear direction with the first axis X as the swing center. Further, the handle 10 is connected to the cleaning head 20 via the joint 30 so as to be swingable in the left-right direction with the second axis Y as the swing center.

The handle 10 is formed by connecting a plurality of divided bodies, but only the divided body on the tip side to which the joint 30 is connected is shown.

The cleaning head 20 has a substantially rectangular shape in a plan view, and the long side direction is the left-right direction and the short side direction is the front-rear direction. As shown in FIG. 1 or 2, the cleaning head 20 includes a base portion 21 made of an elastic cushion body and a plastic head portion 22 above the base portion 21. As the material of the head portion 22, acrylic butadiene styrene ABS resin, polypropylene (PP), polyethylene (PE), polycyclohexanedimethylene terephthalate (PCTA), ABS / PC alloy (composite material) are used from the viewpoint of cost and physical properties. It is preferably used. The cleaning head 20 is a cleaning sheet (non-cleaning sheet) that makes it possible to wipe off dirt and dust on the floor surface around the bottom portion of the base portion 21 (which becomes a cleaning work surface that slides on the floor surface that is the surface to be cleaned). Locking portions 22A that enable winding (shown) and lock the cleaning sheet are provided at the four corners of the upper surface of the head portion 22. A cushion material such as a sponge may be interposed between the base portion 21 and the head portion 22.

However, the cleaning head 20 is not limited to the one using the above-mentioned cleaning sheet, and rolls on the floor surface as described in, for example, Japanese Patent Application Laid-Open No. 2010-22657, so that dust on the floor surface can be captured. It may be provided with a cleaning roll.

As shown in FIGS. 4 to 6, the joint 30 includes a support member 40, a core 50, and a repulsion means 60.

The support member 40 is made of a plastic molded body, and has a bifurcated main body 41 (hereinafter, the bifurcated main body is also referred to as a main body) as shown in FIG. The main body portion 41 includes a semicircular arcuate portion 41A and both side leg portions 41B that are bifurcated from the semicircular arcuate portion 41A and face each other. The semicircular arc-shaped portion 41A and the leg portions 41B on both sides form a U-shaped plate-like body when viewed from the front, and the inner surface thereof forms a continuous U-shaped inner surface.

The support member 40 has both side connecting portions 42 protruding outward along the first axis X from the both side leg portions 41B of the main body portion 41. The both-side connecting portion 42 can swing with the first axis X as the swing center for each of the two-sided connected portions 23 provided at two opposing positions at the center of the upper surface of the head portion 22 in the cleaning head 20. Be connected. The both-sided connecting portion 42 can be displaced between a stationary position that can be connected to the both-sided connected portion 23 of the cleaning head 20 and a retracted position that is not connected to the both-sided connected portion 23 by a structure described in detail later. It is said that.

In the present embodiment, the support member 40 has a semicircular arc-shaped portion 41A that is deformed by receiving a force F (FIG. 7) that presses the opposite side leg portions 41B in a bifurcated shape of the main body portion 41 from both outer sides. Then, the distance G (FIG. 7) between the legs 41B on both sides is elastically deformable to a narrow width from the free state. In the support member 40, the both side connecting portions 42 are positioned at the steady positions shown in FIG. 7 in the free state of the both side leg portions 41B, and the both side connecting portions 42 can be displaced to the retracted position in the narrow width deformation state of the both side leg portions 41B. Be made.

In the present embodiment, the connecting portions 23 on both sides of the cleaning head 20 are formed of shaft holes 24, and the connecting portions 42 on both sides of the support member 40 are formed of support shafts 43 that are inserted into and connected to the shaft holes 24 of the cleaning head 20. The support shaft 43 as the connecting portions 42 on both sides of the support member 40 projects from the center of the outer surface of the disc-shaped portion 41C in which the lower ends of the leg portions 41B on both sides of the main body 41 are formed in a disk shape. When both support shafts 43 and 43 are set to a steady state with both side legs 41B of the main body 41 in a free state, the length L1 (FIG. 5) formed by the end faces 43A of both support shafts 43 and 43 is the length L1 (FIG. 5) of the cleaning head 20. The distances W (FIG. 5) at which the shaft holes 24 and 24 face each other are sufficiently larger.

On the other hand, the above-mentioned length L1 has a slanted end surface 43A of both support shafts 43 and 43 when both support shafts 43 and 43 are set to retract positions in a state where both side leg portions 41B of the main body portion 41 are narrowly deformed. Is smaller than the above-mentioned interval W (FIG. 5) where they form the maximum width of each other.

As a result, both support shafts 43 and 43 of the support member 40 are set to their retracted positions by elastic narrow width deformation of the leg portions 41B on both sides, and the length formed by their end faces 43A is L2 (L2 <W). The cleaning head 20 is inserted and set within the opposing intervals W of the shaft holes 24, 24 of the cleaning head 20. After that, both support shafts 43 and 43 of the support member 40 are set to their steady positions while the legs 41B on both sides are elastically restored to a free state, and the length formed by their end faces 43A is L1 (L1> W). ), And it is inserted into both shaft holes 24, 24 of the cleaning head 20 and connected.

At this time, the end faces 43A of both support shafts 43 and 43 of the support member 40 have a protrusion amount P (FIG. 7) of the support shaft 43 protruding outward from both side leg portions 41B of the main body portion 41 of the support member 40. A chamfered portion 43B that is smaller on the side of the end surface 43A of the support shaft 43 that serves as an insertion start site into the shaft hole 24 is provided. Both support shafts 43 and 43 of the support member 40 are set to their retracted positions by elastic narrow deformation of the leg portions 41B on both sides, and the chamfered portions 43B of their end faces 43A are cleaned. While being pressed against the opening edges of the 24 and 24, they are pushed so as to slide into the opposing intervals W of the shaft holes 24 and 24. As a result, both support shafts 43 and 43 eventually reach the openings of both shaft holes 24 and 24, and the leg portions 41B on both sides are elastically restored to a free state and positioned at their steady positions, and the cleaning head 20 It is naturally inserted into the openings of both shaft holes 24 and 24 and connected to each other.

The core 50 is made of a plastic molded body, and as shown in FIG. 8, the core 50 follows the phase-continuous U-shaped inner side surfaces of the semicircular arcuate portion 41A and the both side leg portions 41B in the main body portion 41 of the support member 40. It is inserted inside without a gap or only through a small gap. As the material of the core 50, polyacetal (POM), polyamide (PA), polytetrafluoroethylene (PTFE), polyphenylene sulfide (PPS) and the like are used.

As a result, the core 50 is inserted into the space G between the inner side surfaces of the opposite side leg portions 41B of the main body portion 41, and prevents the both side connecting portions 42 of the main body portion 41 from being displaced from the steady position to the retracted position. , The bilateral connecting portion 42 can be maintained in a steady position.

In the present embodiment, by inserting the core 50 into the gap G between the leg portions 41B on both sides in the main body 41, the presence of the core 50 makes it impossible to deform the narrow width of the leg 41B on both sides, and the main body 41 It prevents the both side connecting portions 42 from being displaced from the steady position to the retracted position.

In the present embodiment, the core 50 has the contour shape of the front view as the contour of the inner side view on the U-shaped inner side surface of the semicircular arc-shaped portion 41A and the both side leg portions 41B of the main body portion 41 of the support member 40. It has the same shape. The core 50 has a plate-shaped portion 51 having the same contour as the semicircular arc-shaped portion 41A of the main body portion 41 of the support member 40 and the disc-shaped portion 41C of both side leg portions 41B in the front view, and the side view. It has the same outer diameter as the disk-shaped portion 41C of the leg portions 41B on both sides, and is composed of a cylindrical portion 52 continuous with the lower end portion of the plate-shaped portion 51. The plate-shaped portion 51 includes a mounting hole 53 for connecting the joint 30 to the handle 10 and a spring hole 54 for inserting the compression coil spring 61 constituting the repulsion means 60. The cylindrical portion 52 includes a lightening hole 55 for plastic molding. The central axis (second axis Y) of the mounting hole 53 of the core 50 is a plan view in a state where the core 50 is inserted into the support member 40, and is a connection portion 42 (support shaft 43) on both sides of the support member 40. It is arranged orthogonally to the central axis (first axis X).

As shown in FIGS. 5 and 6, the repulsive means 60 is interposed between the main body 41 of the support member 40 and the core 50 to exert a repulsive force on the core 50, and a friction provided with the core 50. The moving portion 56 is made slidable in a frictional surface contact state in which the moving portion 56 is in pressure contact with the sliding portion 25 provided on the cleaning head 20. By changing the repulsive force (elastic force) of the repulsive means 60, the sliding resistance of the sliding portion 56 and the sliding portion 25 can be adjusted. By adjusting the repulsive force of the repulsive means 60 according to the weight of the cleaning head 20 and the purpose of cleaning, the posture holding property of the cleaning head 20 and the followability to the surface to be cleaned can be adjusted.

In the present embodiment, the repulsion means 60 is composed of a compression coil spring 61, one end of the spring 61 is inserted into a spring hole 41S provided on the upper inner side surface of the semicircular arcuate portion 41A in the main body 41, and the other end of the spring 61 is inserted. The portion is inserted into the spring hole 54 provided on the upper outer surface of the plate-shaped portion 51 in the core 50. Other forms of the repulsion means 60 include a sponge, rubber, and the like, and the spring may be a leaf spring or the like as well as a coil spring.

The sliding portion 56 of the core 50 is formed on the outer peripheral surface of the cylindrical portion 52, and the central axis of both side connecting portions 42 (support shaft 43) in the main body portion 41 of the support member 40 into which the core 50 is inserted. Around (first axis X), it has a curved convex surface 56A overhanging on the opposite side of the repulsive means 60. The slidable portion 25 of the cleaning head 20 is formed at the bottom of the head portion 22 within the interval W of the opposite side connected portions 23 (shaft holes 24) of the head portion 22, and the sliding portion 56 (curved convex shape) of the core 50. It has a curved concave surface 25A that follows the surface 56A).

In the cleaning tool 1, the support member 40 and the core 50 are the second shafts of the bifurcated mounting portion 11 provided at the tip end portion of the handle 10 with the core 50 inserted in the main body portion 41 of the support member 40. It is inserted into the bifurcated 12 and 12 facing each other in the direction along Y. The bifurcated mounting portion 11 and the core 50 are provided in the bifurcated mounting portions 11 and the bifurcated 12 and 12, and are arranged on the second shaft Y, and the plate-shaped portion 51 of the core 50. The mounting pin 14, which is a mounting shaft provided in the above and inserted into the mounting hole 53 arranged on the second shaft Y, is swingably connected with the second shaft Y as the swing center.

Next, in the cleaning tool 1, an assembly procedure for connecting the handle 10 and the cleaning head 20 by a joint 30 will be described.

(1) By sandwiching the both side legs 41B of the support member 40 constituting the joint 30 from both outer sides by the user's fingers and, if necessary, using a tool, the both side legs 41B are deformed from the free state to a narrow width. Then, both side connecting portions 42 (support shafts 43) protruding outward along the first axis X from the both side leg portions 41B are displaced from the steady position to the retracted position. The both side connecting portions 42 (support shafts 43) set at this retracted position are set within the opposing intervals W of the shaft holes 24, 24 of the cleaning head 20.

After that, by releasing the pinching pressure applied to both side leg portions 41B and restoring the both side leg portions 41B to a free state, the both side connecting portions 42 (support shaft 43) are set to the steady position, and the cleaning head 20 The cleaning head 20 and the support member 40 are oscillatingly connected with the first shaft X as the oscillating center.

(2) The main body 41 of the support member 40 is centered around the both side connecting portions 42 (support shaft 43) of the support member 40 in the above-mentioned (1) inserted into the shaft holes 24, 24 of the cleaning head 20. The cleaning head 20 is laid down on the front side or the rear side close to the upper surface of the head portion 22. As a result, the continuous U-shaped inner side surfaces of the semicircular arc-shaped portion 41A and the both side leg portions 41B in the main body portion 41 are exposed to the outside world, and the core 50 constituting the joint 30 is inserted into the U-shaped inner side surface from the outside. To do. At the time of insertion, one end of the coil spring 61 constituting the repulsion means 60 is inserted into either the spring hole 41S of the support member 40 or the spring hole 54 of the core 50, and the main body of the support member 40 is inserted. The core 50 is inserted into the portion 41. At the time of this insertion, both ends of the coil spring 61 constituting the repulsive means 60 are inserted into the spring holes 41S of the support member 40 and the spring holes 54 of the core 50, respectively, and the repulsive force of the repulsive means 60 is generated. The sliding portion 56 (curved convex surface 56A) of the core 50 is pressed against the slided portion 25 (curved concave surface 25A) of the cleaning head 20.

The repulsive force of the repulsive means 60 is a reaction of the pressure contact between the sliding portion 56 of the core 50 and the sliding portion 25 of the cleaning head 20, so that the support shaft 43 of the support member 40 is formed in the shaft hole 24 of the cleaning head 20. Press contact with the inner surface of the hole.

(3) The support member 40 and the core inserted according to (2) above in the bifurcated 12 and 12 facing each other in the front-rear direction along the second axis Y of the bifurcated mounting portion 11 provided at the tip of the handle 10. Insert 50. At this time, the core 50 is restrained by the support member 40 in the direction along the first axis X and does not relatively displace, and is sandwiched between the bifurcated attachment portions 11 in the direction along the second axis Y. No relative displacement. Then, by inserting the mounting pin 14 into the mounting holes 13 of the bifurcations 12 and 12 and the mounting holes 53 of the core 50, the handle 10 and the core 50 swing around the second axis Y as the swing center. Connect as much as possible.

As described above, the bifurcated mounting portion 11 of the handle 10 is inserted into the bifurcated 12 and 12 facing each other in the front-rear direction, and both sides are connected along the first axis X of the support member 40 which is not displaced relative to the bifurcated 12 in the front-rear direction. The portion 42 (support shaft 43) is swingably connected to both shaft holes 24 and 24 of the cleaning head 20 in the front-rear direction, and the handle 10 has the first shaft X as the swing center with respect to the cleaning head 20. It will be connected so that it can swing in the front-back direction.

Further, the handle 10 is inserted into the mounting hole 13 arranged on the second axis Y of the bifurcated 12 and 12 of the bifurcated mounting portion 11 according to the above-mentioned (3) by the mounting pin 14 inserted into the core 50 in the left-right direction. It is connected so that it can swing. At this time, the core 50 is restrained so as not to be relatively displaced in the left-right direction to the U-shaped inner side surface of the main body portion 41 of the support member 40, and the both-side connecting portion 42 protruding in the left-right direction of the support member 40. Since the (support shaft 43) is connected to both shaft holes 24, 24 of the cleaning head 20 without being displaced in the left-right direction, the handle 10 swings the second shaft Y with respect to the cleaning head 20. It is connected so as to be swingable in the left-right direction around the center.

Therefore, according to the present embodiment, the following effects are exhibited.
(a) In the cleaning tool 1 in which the tip end portion of the handle 10 and the cleaning head 20 are swingably connected by the joint 30, both side connecting portions 42 provided on both side leg portions 41B of the support member 40 constituting the joint 30 (a) The support shaft 43) is positioned at the retracted position, is set within the interval W of the connected portions 23 (shaft holes 24) on both sides of the cleaning head 20, and then is set to the steady position and connected on both sides of the cleaning head 20. It is connected to the unit 23. As a result, the both-sided connecting portion 42 can be displaced between the retracted position and the steady position and engaged with the both-sided connected portion 23 without deforming the both-sided connected portion 23, and the both-sided connected portion 23 can be engaged and disengaged. After the connection with the support member 40, the presence of the core 50 inserted in the gap G between the leg portions 41B on both sides of the support member 40 prevents the displacement to the retracted position and maintains the steady position. The both-sided connecting portion 42, which is positioned and maintained at a steady position, has a sufficient connecting length with the both-sided connected portions 23, and can improve the pull-out strength of the cleaning head 20 with respect to the joint 30.

(b) The support member 40 makes the bifurcated main body 41 bifurcated so that the distance G between the two leg portions 41B facing each other can be elastically deformed in a narrow width from the free state, and the bifurcated leg portions 41B are in the free state. The two-sided connecting portion 42 is positioned at a stationary position, and the both-side connecting portion 42 can be displaced to the retracted position in a narrowly deformed state of the both-side leg portions 41B. Then, by inserting the core 50 into the gap G between the bifurcated leg portions 41B in the bifurcated main body portion 41, the narrow width deformation of the bifurcated leg portions 41B is made impossible. As a result, the both-side connecting portion 42 can be displaced between the steady position and the retracted position by a simple configuration in which the both-side connecting portion 42 is integrally provided with the both-side leg portions 41B of the bifurcated main body portion 41.

(c) Each of the both side connecting portions 42 in the main body portion 41 of the support member 40 includes a support shaft 43 that is inserted and connected to each of the shaft holes 24 provided in the both side connected portions 23 of the cleaning head 20. Then, the end surface 43A of the support shaft 43 inserts the protruding amount of the support shaft 43 that protrudes outward from the both side leg portions 41B of the main body portion 41 of the support member 40 into the shaft hole 24 at the end surface 43A of the support shaft 43. A chamfered portion 43B that is smaller on the side that becomes the starting portion is provided. As a result, when the support shaft 43 of the both side connecting portions 42 in the support member 40 positioned at the retracted position is inserted into the shaft hole 24 of the both side connected portions 23 of the cleaning head 20 and connected so as to be swingable, the support shaft The chamfered portion 43B of the end surface 43A of the 43 can be smoothly inserted by sliding into the shaft hole 24, and the workability of assembling the joint 30 with respect to the cleaning head 20 can be improved.

(d) The support member 40 and the core 50 constituting the joint 30 are inside the bifurcated 12 of the bifurcated mounting portion 11 at the tip of the handle 10 with the main body 41 and the core 50 of the support member 40 inserted. The bifurcated mounting portion 11 and the core 50 are swingably connected by a mounting pin 14 inserted through the bifurcated mounting portion 11 and the core 50. Then, by adjusting the repulsive force (elastic force) of the repulsive means 60 interposed between the main body 41 of the support member 40 and the core 50, the sliding portion 56 of the core 50 and the cleaning head 20 The sliding resistance of the sliding portion 25 can be adjusted, and the sliding portion 56 of the core 50 is stably pressed against the sliding portion 25 of the cleaning head 20 over time regardless of the progress of use of the cleaning tool 1. be able to. As a result, when the cleaning tool 1 is lifted to change the cleaning location, the sliding portion 56 of the core 50 of the joint 30 attached to the tip of the handle 10 and the sliding portion 25 of the cleaning head 20 The frictional force generated between the two and the cleaning head 20 acts as a fluttering suppressing force of the cleaning head 20 stably for a long period of time, and maintains a stable relative posture with respect to the handle 10 for a long period of time. Further, the followability of the cleaning head 20 to the surface to be cleaned can be adjusted.

(e) The sliding portion 56 of the core 50 has a curved convex surface 56A, and the sliding portion 25 of the cleaning head 20 has a curved concave surface 25A that follows the sliding portion 56 of the core 50. Will be done. Therefore, the sliding portion 56 of the core 50 and the slidable portion 25 of the cleaning head 20 can be slidable in a pressure contact state in surface contact, and between the sliding portion 56 and the slidable portion 25. A stable frictional force is generated, and this frictional force becomes a stable fluttering suppressing force of the cleaning head 20 with respect to the handle 10.

(f) The handle 10 can swing in the front-rear direction with respect to the cleaning head 20 with the first axis X as the swing center, and can swing in the left-right direction with the second axis Y as the swing center. Will be done. By making the handle 10 swingable back and forth and left and right, it is possible to improve the followability of the cleaning head 20 to the surface to be cleaned.

(Example 2) (FIGS. 9 to 15)
The cleaning tool 1 of the second embodiment is substantially different from the cleaning tool 1 of the first embodiment in that the support member 40 is provided with the guide portion 101 (FIG. 14) and the core 50 is provided with the guided portion 102 (FIG. 15). The core 50 is guided by the guide portion 101 of the support member 40 under the repulsive action of the repulsive means 60 (coil spring 61), and the sliding portion 56 is covered by the cleaning head 20. It is in that it is brought into pressure contact with the sliding portion 25.

In the present embodiment, the support member 40 includes a guide portion 101 projecting on the inner side surfaces of the main body portion 41 facing each other in a rectangular parallelepiped shape along the longitudinal direction of the both side leg portions 41B. .. Further, the core 50 is inserted into the outer surface of the plate-shaped portion 51 inserted into the phase-continuous U-shaped inner side surface of the semicircular arc-shaped portion 41A and the both side leg portions 41B in the main body portion 41 in the longitudinal direction of the plate-shaped portion 51. A guided portion 102 is provided, which is recessed in a keyway shape along the above. The guided portion 102 of the core 50 opens outward on one end side in the longitudinal direction of the plate-shaped portion 51, and opens in the lightening hole 55 of the cylindrical portion 52 on the other end side in the longitudinal direction of the plate-shaped portion 51. It has a penetrating shape, engages with the guide portion 101 of the support member 40, and is slidable along the longitudinal direction of the guide portion 101.

In the process of assembling the handle 10 and the cleaning head 20 via the joint 30, the main body 41 of the support member 40 is laid down so as to be close to the upper surface of the head 22 of the cleaning head 20, and the inside of the main body 41 is U-shaped. With the side surface exposed to the outside world, the guided portion 102 of the core 50 is inserted into and engaged with the guide portion 101 of the support member 40 from one end side thereof.

Therefore, according to the present embodiment, the support member 40 is provided with the guide portion 101, the core 50 is provided with the guided portion 102, and the core 50 is provided with the guided portion 102 under the repulsive action of the repulsive means 60. Is guided by the guide portion 101 of the support member 40, and the sliding portion 56 is pressed against the slidable portion 25 of the cleaning head 20. As a result, the moving direction of the core 50 due to the repulsive force of the repulsive means 60 is urged in a fixed direction by the guide portion 101 of the support member 40, and the sliding portion 56 of the core 50 and the sliding portion 25 of the cleaning head 20 are urged. Can be slidable in a pressure-welded state in a stable and reliable manner.

In the cleaning tool, the structure that allows both side connecting parts (support shafts) provided on both side legs of the support member to be displaced between the stationary position and the retracted position makes both side legs elastically bendable and deformable. However, the legs may be bent and deformed on both sides, and the core may prevent the bent and deformed portions so that the legs on both sides can be maintained at the steady position. Alternatively, both side connecting portions (support shafts), which are separate bodies on both side legs, can be elastically projected to a steady position by the action of a spring force from a retracted position immersed in the both side legs, and project to the steady position. The core may prevent the core from immersing the two-sided connecting portion in the retracted position so that the fixed position can be maintained.

Further, in the cleaning tool, the support member 40 may be provided with a keyway-shaped guide portion, and the core 50 may be provided with a key-shaped guided portion.

Further, in the cleaning tool, the structure of the handle 10 is not limited and may not be divided or may have an expansion / contraction mechanism.

According to the present invention, in a cleaning tool that connects the tip of the handle and the cleaning head with a joint, it is possible to improve the pull-out strength of the cleaning head with respect to the joint and the function of suppressing fluttering.

1 Cleaning tool 10 Handle 11 Bifurcated mounting part 12 Bifurcated 13 Mounting hole 14 Mounting pin (mounting shaft)
20 Cleaning head 23 Both sides connected part 24 Shaft hole 25 Guided part 25A Curved concave surface 30 Joint 40 Support member 41 Bifurcated body part 41A Semi-circular part 41B Both sides leg part 42 Both sides connecting part 43 Support shaft 43A End face 43B Chamfered part 50 Core 56 Sliding part 56A Curved convex surface 60 Repulsive means 101 Guide part 102 Guided part

Claims (6)

A cleaning tool in which the tip of the handle and the cleaning head are swingably connected by a joint.
The joint is composed of a support member, a core, and a repulsive means.
The support member protrudes outward along the first axis from the bifurcated main body and the bifurcated legs of the main body, and is provided on both sides of the cleaning head at two opposite positions. Each of the connecting portions has a bilateral connecting portion that is swingably connected with the first shaft as the swing center, and a steady position where the both side connecting portions can be connected to both side connected portions of the cleaning head and both sides thereof. It is possible to displace between the connected part and the retracted position that is not connected.
The core is inserted within the distance between the legs facing each other in the main body of the support member to prevent the both side connecting portions of the support member from being displaced from the stationary position to the retracted position, and the both side connecting portions are placed in the stationary position. Can be maintained in
The repulsive means is interposed between the main body of the support member and the core to exert a repulsive force on the core, and the sliding portion provided on the core is pressed against the sliding portion provided on the cleaning head. Made slidable with
The support member and the core are inserted into the bifurcation of the bifurcated mounting portion at the tip of the handle with the core inserted into the main body of the supporting member, and the bifurcated mounting portion and the center are inserted. A cleaning tool in which the child is swingably connected with the second shaft as the swing center by a mounting shaft inserted through them. The handle is oscillatingly connected to the cleaning head in the front-rear direction with the first axis as the swing center, and the handle swings to the cleaning head in the left-right direction with the second axis as the swing center. The cleaning tool according to claim 1, which is movably connected. The sliding portion of the core has a curved convex surface that projects on the opposite side to the repulsive means around the central axis of the connecting portion on both sides in the main body portion of the support member into which the core is inserted.
The cleaning tool according to claim 1 or 2, wherein the sliding portion of the cleaning head has a curved concave surface that imitates the sliding portion of the core. The support member
The bifurcated main body is bifurcated so that the distance between the opposing legs can be elastically deformed to a narrow width from the free state, and the bifurcated joints are positioned in a stationary position in the free state of the both legs. In the narrow deformation state of the legs on both sides, the connecting parts on both sides can be displaced to the retracted position, and
The cleaning tool according to any one of claims 1 to 3, wherein the narrow deformation of the both legs is made impossible by inserting the core into the space between the legs. Each of the both side connecting portions in the main body portion of the support member is provided with a support shaft that is inserted and connected to each of the shaft holes provided in both side connected portions of the cleaning head.
The amount of protrusion of the support shaft by which the end face of the support shaft protrudes outward from both side legs in the main body of the support member is made smaller on the side of the end face of the support shaft that becomes the insertion start site into the shaft hole. The cleaning tool according to any one of claims 1 to 4, further comprising a chamfered portion. The support member is provided with a guide portion, and the core is provided with a guided portion.
Any of claims 1 to 5, wherein the core is guided by the guide portion of the support member and the sliding portion is pressed against the sliding portion of the cleaning head under the repulsive force action of the repulsive means. Cleaning tools listed in.

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