JP2006061542A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of absorbing impact when colliding with a wall, furniture, or the like to prevent the damage of the wall, furniture and the breakage of an outer enclosure. <P>SOLUTION: A protector 26 for relieving impact in a collision is formed of a foam resin part 26c formed of foam resin, and an outer skin 26e covering the foam resin part 26c and formed of material different from the foam resin part 26c. Since softness can be uniformly formed over the whole protector 26, impact applied from the outside can be uniformly received and absorbed, and since there is no need to seal air inside, stable impact absorbing capacity can be exhibited over a long period of time. Further, since the foam resin part 26c is covered with the outer skin 26e, cavity parts in the foam resin part 26c are not exposed to the outside. As a result, appearance is fine, external design can be made distinctly conspicuous, and there is no catching on the wall, furniture, or the like because of no cavity part in the surface. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vacuum cleaner, and more particularly to a protector that absorbs an impact at the time of a collision.

  A conventional vacuum cleaner will be described with reference to FIG. In FIG. 13, the exterior of the vacuum cleaner main body 1 of the electric vacuum cleaner is composed of a main body cover lower 2, a main body cover upper 3, and a dust collector lid 5 that covers the dust collector 4 in an openable and closable manner. A hose (not shown) is connected to the front part, and an intake port 6 communicating with the dust collecting part 4 is provided. 7 is a protector which is a member formed of soft vinyl chloride, is formed in a substantially U shape, and is attached from the front part of the lower body cover 2 to both side parts. FIG. 13B is a cross-sectional view showing the configuration of the protector 7 and its mounting portion. The upper portion of the protector 7 is fitted to the upper end 2a of the lower body cover 2 and the outer wall 2b of the lower body cover 2 2 and the protector 7 The lower end 7b of the protector 7 is brought into contact with the outer wall 2b of the lower body cover 2 so as to secure a space 7c between the rear surface 7a.

  With the above configuration, when the protector 7 collides with the wall of the room or the like during cleaning, the protector 7 moves while the lower end 7b of the protector 7 slides downward along the surface of the lower body cover 2 as shown in FIG. It is bent inward to absorb the impact and prevent the vacuum cleaner main body 1 from being damaged, and at the same time, the wall is prevented from being damaged (for example, see Patent Document 1).

  FIG. 14 shows another conventional protector configuration. The protector 8 has a sealed hollow portion 8a, and receives an impact when the front and side portions of the cleaner body 1 collide with furniture during cleaning. It absorbs in the hollow part 8a (for example, refer patent document 2).

FIG. 15 shows another example of a conventional protector structure. Reference numeral 9 denotes a protector made of soft vinyl chloride or the like, which is fitted to the upper edge of the lower body cover 2 and includes the protector 9 and the body cover. A hollow portion 9b is formed between the lower portion 2 and a plurality of protrusions 9a protruding in the hollow portion 9b toward the outer wall of the lower body cover 2 are integrally formed on the back surface of the protector 9 so that the impact is applied to the protector 9. When added, the plurality of protrusions 9a breaks to absorb the impact. Further, there is a case in which the hollow portion 9b is filled with a foam such as urethane foam (see, for example, Patent Document 3).
JP-A-8-10193 Japanese Patent Laid-Open No. 4-122325 JP-A-4-218122

  However, in the protector configuration of the conventional vacuum cleaner as shown in FIG. 13, the protector 7 is formed of soft vinyl chloride having a relatively high hardness, so that the impact applied to the protector 7 is as shown in FIG. As shown, it is bent and absorbed inward, but since the size of the space 7c is limited, there is a problem that the bending allowance is not sufficiently secured and the shock cannot be sufficiently absorbed. Of course, if the space 7c is made larger, the shock absorbing ability is enhanced, but there is a problem that the protector 7 is greatly expanded outward and the main body 1 of the cleaner is enlarged.

  Moreover, in the protector structure of the conventional vacuum cleaner as shown in FIG. 14, it is necessary to seal the hollow portion 8a, which increases the manufacturing cost, and the air inside gradually escapes when used for many years. There was a problem that the shock absorbing ability was lowered. In addition, although the impact absorbing capacity depends on the material of the protector 8, it is largely determined by the air pressure in the hollow portion 8a. Therefore, if the air pressure is low, a strong impact cannot be absorbed, and a strong impact can be obtained. If the air pressure in the hollow portion 8a is increased so that it can be absorbed, manufacturing becomes difficult and air leakage is likely to occur.

  Moreover, in the protector structure of the conventional vacuum cleaner as shown in FIG. 15, since the hardness differs between the portion where the projection 9a of the protector 9 is provided and the portion where it is not provided, A difference occurs in the shock absorption capacity. In addition, when an impact is applied to the surface of the protector 9 from obliquely below or obliquely above, the protrusion 9a is smoothly bent and absorbed, but the impact is absorbed. When 9a is first compressed and exceeds its limit, it suddenly breaks down, causing a problem that shock absorption is not performed smoothly. Also, in the case where urethane is filled in the hollow part of a member made of soft vinyl chloride, it is transmitted to urethane through a soft vinyl chloride part that is relatively hard and has no cushioning property when it receives external force. The shock absorption was bad.

  The present invention solves the above-mentioned conventional problems, and absorbs an impact at the time of a collision with a wall, furniture, etc., and can prevent damage to the wall, furniture, etc., damage to the outer shell, etc. The purpose is to provide.

  In order to solve the above-described conventional problems, the vacuum cleaner of the present invention includes a protector that mitigates an impact at the time of a collision, and covers the protector with a foamed resin portion formed of a foamed resin and the foamed resin portion. At the same time, it is formed of the foamed resin portion and a skin made of a different material, and the softness can be uniformly formed over the entire protector, so that it is possible to uniformly receive and absorb external impacts. In addition, since it is not necessary to seal the air inside, it is possible to exhibit a shock absorbing capacity that is stable over a long period of time. In addition, since the foamed resin part is covered with the skin, the hollow part in the foamed resin part is not exposed to the outside, so it looks good, the appearance design can be clearly highlighted, and there is no cavity part on the surface, so the wall And it won't get caught in furniture.

  The electric vacuum cleaner of the present invention can absorb shocks at the time of collision with walls, furniture, etc. reliably and smoothly, and prevent damage to the walls, furniture, etc., damage to the outer shell, and the like.

  1st invention is equipped with the protector which relieves | impacts the impact at the time of a collision, The skin which consists of a foamed resin part formed from a foamed resin, and the foam resin part which covers the said foamed resin part, and the said foamed resin part differs Since the softness can be uniformly formed over the entire protector, it is possible to uniformly receive and absorb external impacts. In addition, since it is not necessary to seal the air inside, it is possible to exhibit a shock absorbing capacity that is stable over a long period of time. In addition, since the foamed resin part is covered with the skin, the hollow part in the foamed resin part is not exposed to the outside, so it looks good, the appearance design can be clearly highlighted, and there is no cavity part on the surface, so the wall And it won't get caught in furniture.

  According to the second invention, the protector of the first invention is formed with a locking member for attaching to other parts, and the protector can be fixed and attached to other parts very easily and reliably. Is.

  In the third invention, in particular, the foamed resin portion of the first or second invention is formed of polyethylene, and since a general-purpose material can be used, it can be formed at low cost.

  In the fourth invention, in particular, the foamed resin portion of any one of the first to third inventions is formed of a low-resilience foamed resin. When the protector collides with furniture, the impact given to the furniture. Can be reduced.

  In the fifth aspect of the invention, in particular, the foamed resin portion of any one of the first to third aspects is formed of a highly repellent foamed resin. For example, a protector provided in the cleaner body collides with a pillar or the like. When this occurs, the main body of the cleaner moves backward with a strong repulsive force, and can be easily withdrawn from the pillar, thereby improving running performance.

  In the sixth invention, in particular, the foamed resin portion of any one of the second to fifth inventions and the locking member are bonded to each other, and the foamed resin portion is generally bonded and fixed to the locking member made of a hard material. Therefore, the assemblability is improved.

  In the seventh invention, in particular, the foamed resin part and the skin of any one of the first to sixth inventions are bonded together, and the foamed resin part and the skin are integrated by adhesion, so cushioning is provided on the surface. I can tell you with certainty.

  In the eighth invention, in particular, the thickness of the foamed resin part of any one of the first to seventh inventions is 3 mm or more, and the thickness of the skin is 1.5 mm or more. The thickness of the foamed resin part is 3 mm or more. By doing so, the impact applied to the protector during the normal cleaning operation can be sufficiently absorbed, and since the thickness of the epidermis is 1.5 mm or more, the epidermis is not easily torn off or torn.

  In particular, the ninth aspect of the invention includes the vacuum cleaner body according to any one of the first to eighth aspects of the invention, including a vacuum cleaner body including an electric blower that generates suction air, and at least a part of the outer shell of the vacuum cleaner body. Even if the main body of the vacuum cleaner hits furniture, a desk, a wall, etc. by placing a protector on the main body of the vacuum cleaner that is heavy and has the most chances of hitting furniture, desks, walls, etc. They are not damaged and the vacuum cleaner body is not damaged.

  According to a tenth aspect of the invention, in particular, the electric vacuum cleaner according to any one of the first to eighth aspects incorporates an electric blower that emits suction air and has an intake port communicating with the electric blower. And a hose connected at one end to the suction port and connected at the other end to the suction tool, with a protector disposed on at least a part of the outer shell of the hose. If a protector is provided on the outer edge of the grip part that is provided at the end of the suction tool and is gripped during cleaning, even if the grip part formed of hard resin is removed during cleaning, the protector The applied impact is alleviated, the floor is not damaged, and the feeling of fit when gripped is improved, making it less fatigued.

  The eleventh aspect of the invention is particularly a vacuum cleaner main body having an air blower that emits suction air according to any one of the first to eighth aspects of the invention and having an intake port communicating with the electric blower, and a suction tool for sucking dust. And an extension pipe having one end communicating with the intake port and the other end communicating with the suction tool, and having a protector disposed on at least a part of the outer shell of the extension pipe. When the extension tube is dropped on the floor or cleaned, the protector will not damage the floor, furniture, or desk even if it hits the rail under the furniture or desk, and the protector will hold the extension tube. The feeling of fit when cleaning is improved and fatigue is reduced.

  The twelfth aspect of the invention is particularly a vacuum cleaner body including an electric blower that generates suction air in the electric vacuum cleaner of any one of the first to eighth aspects of the invention, and a suction tool that communicates with the electric blower and sucks dust. The protector is arranged on at least a part of the outer shell of the suction tool, and the protector is provided on the suction tool having the highest frequency of hitting the floor, wall, furniture, etc., thereby damaging the wall, furniture, etc. It can be prevented.

  In the thirteenth aspect of the invention, in particular, a protector is provided outside the cleaning surface side of the suction tool of the twelfth invention, and when cleaning, the non-floor side of the floor suction tool is under a sofa, table, etc. There are many opportunities to collide with the pier, but since there is a protector on that part, they will not be scratched or the floor suction tool itself will not be damaged.

  In particular, the fourteenth invention is detachably connected to a vacuum cleaner main body having a built-in electric blower that emits suction air to the electric vacuum cleaner of any one of the first to eighth inventions, so as to communicate with the electric blower. A cleaning attachment, and a protector is disposed on at least a part of the outer shell of the cleaning attachment, and when the cleaning attachment is used to clean a desk or furniture, the inside thereof is damaged. There is nothing to put on.

  The fifteenth aspect of the invention is particularly a vacuum cleaner body including an electric blower that generates suction air in the electric vacuum cleaner of any one of the first to eighth aspects of the invention, and a suction tool that communicates with the electric blower and sucks dust. And provided with traveling means in the vacuum cleaner body and / or the suction tool, and a protector is disposed on at least a part of the outer shell of the traveling means. Even if the main body of the vacuum cleaner is accidentally dropped on the floor, it will not be damaged by the protector.

  In the sixteenth aspect of the invention, in particular, about 1/3 or more of the entire surface area of the outer shell of the vacuum cleaner of any one of the first to fifteenth aspects of the invention is covered with a protector. The part that collides with walls and furniture during cleaning is mostly the front side of the vacuum cleaner body, hose, extension pipe, floor suction tool, etc., but the surface area of that part is about 1/3 of the whole. By covering more than 1/3 of the total surface area with a protector, it is possible to minimize damage to walls and furniture.

  The seventeenth invention uses a urethane-based or ethylene-based resin material as a material for forming the foamed resin portion according to any one of the first to sixteenth inventions, and has excellent resilience characteristics. In addition to reliably absorbing the shock, foam molding is possible at a relatively low temperature, so that the temperature change during molding and after molding is reduced, molding distortion is suppressed, and a highly accurate member is obtained.

  In the eighteenth aspect of the invention, in particular, the surface of the skin of any one of the first to seventeenth aspects is provided with unevenness, and the appearance design can be easily changed by changing the size of the unevenness. At the same time, even if it hits furniture, walls, etc. during running, it becomes point or line contact, so the frictional resistance is reduced, and the main body of the cleaner can be easily avoided from the furniture, walls.

  In the nineteenth invention, in particular, the surface of the skin of any one of the first to eighteenth invention is provided with ultrafine fibers, and the slipperiness is improved by the ultrafine fibers. However, the main body of the vacuum cleaner can be easily avoided from the furniture, and the turning is lightened.

  In the twentieth invention, in particular, the color of the skin and the color of the foamed resin part of any one of the first to nineteenth inventions are the same or similar, and the protector is sharp during cleaning. Even if the surface is broken or peeled off and the foamed resin portion inside is exposed, the color is the same or similar, so it is difficult to stand out.

  In the twenty-first invention, in particular, the locking member according to any one of the second to fifth and seventh to twentieth inventions is formed from hard resin or metal, and the locking member and the foamed resin portion are integrally molded. Therefore, the locking member and the foamed resin portion can be firmly fixed, and the protector can be easily fixed and attached to the outer portion of the protector.

  In the twenty-second invention, in particular, an opening is provided in a part of the protector of any one of the first to twenty-first inventions, and a part provided with the protector, for example, a dust collecting part of the cleaner body is transparent or translucent. If it is made of a material, the inside of the dust collecting portion, that is, the state of dust accumulation can be seen at a glance from the outside through the opening of the protector.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a perspective view showing the overall configuration of the electric vacuum cleaner according to the first embodiment of the present invention, FIG. 2 is a side view of the electric vacuum cleaner, and FIG. 3 is a top view of the electric vacuum cleaner, 4 is a front view of the electric vacuum cleaner, FIG. 5 is a cross-sectional view of the electric vacuum cleaner, and FIG. 6 is a cross-sectional view of a main part of the electric vacuum cleaner.

In FIG. 1, reference numeral 10 denotes a cleaner body, and an air inlet 12 to which one end of a hose 11 is detachably connected is provided at the front. A tip pipe 14 having a handle 13 is provided at the other end of the hose 11. Reference numeral 15 denotes an extension pipe having one end detachably connected to the tip pipe 14 and the other end detachably connected to a floor suction tool 16 for floor cleaning, which is one of the suction tools.

  2 to 4, the outer body of the cleaner body 10 is composed of a lower body cover 17 and an upper body cover 18, and a pair of travel rollers 19 are rotatably supported on the rear side surface. A caster 20 is rotatably supported on the bottom surface of the lower 17 front portion. The rear surface of the upper body cover 18 is grounded together with an exhaust port 21 for exhausting the exhaust of a motor 27, which will be described later, and a roller 19 when the cleaner body 10 is stood with the rear surface facing down for storage. A rest 22 is provided.

  Reference numeral 23 denotes a main body handle for carrying the cleaner body 10, which is attached to the upper body cover 18 so as to be freely tilted. A dust box 24 is a dust collecting unit that collects dust sucked together with air from the air inlet 12, and is provided so as to be attachable to the cleaner body 10, and its outer shell is made of a transparent or translucent material. Yes. Reference numeral 25 denotes a brake button for operating a later-described cord reel 29 built in the cleaner body 10.

  26 is a protector which is a member formed on a substantially U shape and absorbs an impact, and is attached so as to straddle the main body cover lower part 17 and the main body cover upper part 18 and to cover a part of the front part and the side part thereof. An opening a26a through which one end of the hose 11 passes is provided at the front, and an opening b26b for allowing a part of the outline of the dust box 24 to be seen on both sides.

  In FIG. 5, at the rear of the cleaner body 10, a motor chamber 28 including a motor 27 that is an electric blower for generating suction force, a cord reel 29 for winding a power cord 29a, and a brake button 25 are interlocked. A brake 30 for braking the winding of the power cord 29a by the cord reel 29 is disposed. Reference numeral 31 denotes a motor cover for reducing the noise generated from the motor 27 to the outside, and is arranged so as to cover the motor 27. The motor 27 is housed in a motor chamber 28 via a support rubber 32 that is formed of an elastic material before and after the motor 27 and reduces vibration transmitted from the motor 27 to the cleaner body 10.

  A power cord cover 33 is detachably attached to the bottom surface of the lower body cover 17 and opens and closes when the cord reel 29 is attached and serviced.

  A dust box chamber 34 in which the dust box 24 is detachably stored is disposed at the front of the cleaner body 10. The motor chamber 28 and the dust box chamber 34 are partitioned by a partition wall 35 having a lattice-shaped opening 35 a. .

  The dust box 24 is provided with a dust collecting portion (not shown) for collecting dust contained in the sucked air, and a rear portion for collecting fine dust that could not be collected by the dust collecting portion. A dust packing 24b for sealing between the filter 24a and the partition wall 35 when the dust box 24 is stored in the dust box chamber 34 is provided, and a dust handle 24c for carrying the dust box 24 is provided at the upper part. . Further, a dust box cover 24d for taking out the dust collected by the dust collecting section and the filter 24a is provided at the bottom of the dust box 24, and a dust opening and closing operation for opening the dust box cover 24d is provided above the front part. A button 24e is provided.

  24f is an intake port provided at the front portion of the dust box 24 and communicating with the dust collecting portion, and an opening edge thereof is provided at the rear end of the intake port 21 of the cleaner body 10 when the dust box 24 is stored in the dust box chamber 34. The air inlet packing 36 is brought into close contact. 37 is a front of the main body cover provided at the front of the cleaner body 10 so as to cover the periphery of the air inlet 21.

  FIG. 6 shows the structure of the protector 26 and its mounting structure. The protector 26 is formed of a foamed resin material and has a thickness of 3 mm or more, and is formed of an elastomer. A locking member that covers the surface and has a thickness of 1.5 mm or more and a hard resin such as ABS, PP, PS, etc., and is integrally formed on the back surface and / or side surface of the skin 26e by two-layer molding 26d, when assembling the main body cover lower 17 and the main body cover upper 18, the engaging member 26d is fitted and attached to attachment portions 17a and 18a formed on the main body cover lower 17 and the main body cover upper 18, respectively. Yes.

  The locking member 26d may be fixed to the skin 26e by adhesion or welding. Further, the attachment of the skin 26e to the foamed resin portion 26c is performed by adhesion. Alternatively, the locking member 26d may be directly bonded and fixed to the foamed resin portion 26c.

  The operation and action of the vacuum cleaner having the above-described configuration are as follows.

  When a switch (not shown) provided on the distal end pipe 14 is operated, the motor 27 starts to be operated. Due to the suction force, dust on the floor surface is sucked from the floor suction tool 16 together with air, and the extension pipe 15 Then, the air flows into the dust collecting portion through the hose 11, the air inlet 12, and the air inlet 24 f of the dust box 24. Dust is separated and collected in the dust collecting section, and fine dust contained in the air is collected by the filter 24a, and further cleaned air flows into the motor 27 through the opening 35a of the partition wall 35 and is then exhausted. It is discharged from the mouth 21 to the outside.

  The dust collected by the dust collecting portion of the dust box 24 and the fine dust collected by the filter 24a are taken out from the dust box chamber 34, and the dust opening / closing button 24e is operated on the dust box to open the dust box lid 24d. By opening, it can be dropped naturally and discarded.

  As described above, according to the present embodiment, the protector 26 is provided on a part of the main body cover lower part 17 and the main body cover upper part 18 that form the outline of the cleaner main body 10. Even if the vacuum cleaner body 10 collides with furniture, pillars, walls, etc., the shock is absorbed by the softness of the foamed resin portion 26c of the protector 26, so that the furniture, pillars, walls, etc. are damaged, or the cleaner body 10 will not be damaged.

  Further, since the entire portion to which the impact (force at the time of collision) of the protector 26 is applied is formed by the foamed resin portion 26c covered with the skin 26e, the impact is uniformly applied to any portion of the protector 26. It can be absorbed, and the shock absorption capacity does not differ depending on the location of the collision.

  In addition, since the foamed resin portion 26c is covered with the skin 26e, the hollow portion of the foamed resin portion 26c is not exposed to the outside, so that the appearance is good and the appearance design can be clearly distinguished, and the hollow portion is further formed on the surface. Since there is no contact with the wall or furniture, it is easy to slip, so even if the vacuum cleaner main body 10 hits the wall or furniture when traveling, it is easily avoided from the wall and furniture, so the pulling is light It will be.

  In addition, as a foamed resin material, a urethane-based or ethylene-based resin material with excellent resilience characteristics can be used to reliably absorb shocks, and foam molding can be performed at a relatively low temperature. Thus, the temperature change is reduced, the molding distortion is suppressed, and the protector 26 with high accuracy can be obtained.

  Further, the outer periphery of the dust box 24 is formed of a transparent or translucent material, and the openings 26b provided on both sides of the protector 26 are positioned in the portion. Therefore, the dust collection of the dust box 24 is performed through the openings 26b. It is easy to use because there is no need to remove the dust box 24 every time and check the dust accumulation inside the unit.

  Further, by integrally molding the locking member 26d made of hard resin with the skin 26e, the protector 26 can be fixed and attached to the outer portion of the cleaner body 10 and the like very easily and reliably. .

  In the present embodiment, the locking member 26d is formed of a resin material. However, the locking member 26d may be formed of a metal, and the skin 26e or the foamed resin portion 26c may be molded integrally therewith.

  In addition, if the color of the skin 26e of the protector 26 and the color of the material used for the foamed resin portion 26c are the same or similar, the protector 26 may be damaged during cleaning, Even if it peels and the internal foamed resin part 26c is exposed, the color is the same or similar, so that it is hardly noticeable.

  Moreover, it can be formed at low cost by using general-purpose polyethylene as the material of the foamed resin portion 26c.

  Further, if the foamed resin portion 26c is formed of a low resilience foamed resin, when the protector 26 collides with furniture or the like, the impact given to the furniture can be reduced.

  On the contrary, if the foamed resin portion 26c is formed of a highly repellent foamed resin, when the protector 26 collides with a pillar or the like, the cleaner body 10 moves rearward with a strong repulsive force, and easily from the pillar. Therefore, the traveling performance is improved.

  Further, the assemblability is improved by bonding the foamed resin portion 26c and the locking member 26d generally made of a hard material.

  Further, by adhering the foamed resin portion 26c and the skin 26e, the foamed resin portion 26c and the skin 26e are integrated, so that the cushioning property can be reliably transmitted to the surface.

  Further, by setting the thickness of the foamed resin portion to 3 mm or more, it is possible to sufficiently absorb the impact applied to the protector 26 during a normal cleaning operation. Furthermore, by making the thickness of the skin 26 e 1.5 mm or more, the skin 26 e is easy. There is no tearing or tearing.

(Embodiment 2)
FIG. 7 is a perspective view of various components connected to the vacuum cleaner main body of the electric vacuum cleaner according to the second embodiment of the present invention.

  The same parts as those in the above embodiment are denoted by the same reference numerals and the description thereof is omitted.

  In the present embodiment, a hose 11 and an extension pipe are connected so that a protector formed from the same foamed resin portion as the protector 26 in the first embodiment and an outer skin covering the protector 26 communicates with the cleaner body 10. 15, the floor suction tool 16 and the shelf brush 41 which is one of the cleaning attachments.

  In FIG. 7A, 11 a is a connection pipe provided at one end of the hose 11 and connected to the air inlet 12 of the cleaner body 10, and a tip pipe provided at the other end of the connection pipe 11 a and the hose 11. No. 14 is generally molded from a hard resin such as ABS or PS, and if it is removed during cleaning or after cleaning after cleaning, the floor, nearby furniture, desks, etc. will be severely damaged. Therefore, in the present embodiment, in order to prevent the damage as described above, as shown in FIG. 7A, the connection pipe 11a of the hose 11, the distal end side of the distal end pipe 14, and the outer periphery of the handle 13 are provided. The protector 38a-38c formed from the foaming resin part and the skin which covers it is provided.

  FIG. 7B shows a pair of extension pipes 15, and protectors 39 a and 39 b formed from a foamed resin portion and an outer skin covering the outer circumferences at both ends of each extension pipe 15. The extension tube 15 is apt to be removed at the time of clean-up, but even if it is dropped, the protectors 39a and 39b can prevent damage to the floor or the like.

  Furthermore, FIG.7 (c) provided the protector 40a formed from the foamed resin part and the skin which covers it from the front part of the floor suction tool 16 to both sides, and especially the floor suction tool 16 is the following. Since there is a high frequency of collision with the walls of the room, furniture, desk legs, etc., providing the protector 40a made of foamed resin will not damage the walls, furniture, or desk legs. Furthermore, if the protector 40b formed from the foamed resin portion and the skin covering it is also provided on the top surface of the floor suction tool 16 as shown in the figure, when cleaning the sofa or under the bed, Even if the top surface of the suction tool 16 hits against a sofa or a bed rail, the rail is not damaged or the floor suction tool 16 is not damaged.

  Moreover, FIG.7 (d) shows the example which provided the protector 42 formed from the foamed resin part and the skin which covers it over the perimeter of the shelf brush 41 which is one of the attachments for cleaning, In particular, the shelf brush 41 is often used to clean furniture, shelves, drawers, and the like, and therefore, by providing the protector 42, expensive furniture or the like is not damaged.

  The protectors 38a to 38c, 39a, 39b, 40a, 40b, and 42 are attached to the respective parts by integrally forming a locking member made of hard resin on the protector skin as in the first embodiment. It may be locked to each component, or may be bonded with an adhesive, a double-sided adhesive, or the like, and may be attached to each component by ultrasonic wave or heat welding.

(Embodiment 3)
FIG. 8 is a side view of a roller of a vacuum cleaner according to a third embodiment of the present invention, FIG. 9 is a cross-sectional view of the roller (BB cross-sectional view of FIG. 8), and FIG. It is sectional drawing of the caster of a machine. The same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, the same foamed resin portion as that of the protector 26 in the first embodiment is provided on the outer periphery of the roller 19 and the caster 20 which are traveling parts provided on the side surface and the bottom surface of the cleaner body 10. The protector formed from the epidermis which covers is provided.

  8 and 9, a protector 43 formed from a foamed resin portion and a skin covering the foamed resin portion is formed in an annular shape, and is fitted into a concave groove 19 a provided on the outer periphery of the roller 19. Moreover, as shown in FIG. 10, the protector 44 formed from the foamed resin portion and the skin covering it may be formed in an annular shape and fitted into a groove 20a provided on the outer periphery of the caster 20.

  As described above, according to the present embodiment, the cleaner 19 is provided with the protectors 43 and 44 formed of the foamed resin portion and the skin covering the roller 19 and the caster 20 that are grounded and traveled on the floor surface. When the main body 10 travels, the protectors 43 and 44 do not damage the casters 20 and the rollers 19 even if they collide with a sill or the like, or accidentally drop the cleaner main body 10 onto the floor surface.

  In addition, the outer portion that collides with the vacuum cleaner body 10, the hose 11, the extension pipe 15, the wall of the floor suction tool 16 and the furniture during cleaning is located on the front side, and its surface area is approximately 1 / of the total surface area. Since it is about 3, if the protector covers 1/3 or more of the total surface area, damage to walls, furniture, etc. can be minimized.

(Embodiment 4)
FIG. 11: is principal part sectional drawing of the vacuum cleaner in the 4th Embodiment of this invention. The same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, as shown in FIG. 11, if the surface 26e is provided with irregularities 26f, the appearance design can be easily changed by changing the size of the irregularities, etc. Even if it hits furniture, a wall, etc. during traveling, it becomes a point or line contact, so the frictional resistance is reduced, and the cleaner body can be easily avoided from the furniture, the wall, etc.

(Embodiment 5)
FIG. 12: is principal part sectional drawing of the vacuum cleaner in the 5th Embodiment of this invention. The same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, as shown in FIG. 12, the surface of the skin 26e of the protector 26 is implanted with ultrafine fibers, and the slipperiness is improved by the fibers. Therefore, the protector 26 is provided on the outer surface of the cleaner body 10. In this case, even if the cleaner main body 10 hits furniture or the like during traveling, the cleaner main body 10 can be easily avoided from the furniture, and the pulling is lightened.

  As described above, the vacuum cleaner according to the present invention can absorb the impact at the time of collision with the wall, furniture, etc. by the protector, and can prevent damage to the wall, furniture, etc., damage to the outer shell, etc. Therefore, it can be applied to various cleaning devices such as a floor polisher and a floor washer used on the floor.

Whole perspective view of the electric vacuum cleaner in Embodiment 1 of this invention Side view of the vacuum cleaner Top view of the vacuum cleaner Front view of the vacuum cleaner Cross section of the vacuum cleaner Main part sectional drawing of the same vacuum cleaner (AA section of Drawing 2) (A) The perspective view of the hose of the vacuum cleaner in Embodiment 2 of this invention (b) The perspective view of the extension pipe | tube of the vacuum cleaner (c) The perspective view (d) of the floor suction tool of the vacuum cleaner Perspective view of shelf brush used in the vacuum cleaner Side view of roller of electric vacuum cleaner in Embodiment 3 of the present invention BB sectional view of FIG. (A) Side view of caster of vacuum cleaner (b) Cross section of caster Sectional drawing of the principal part of the vacuum cleaner in Embodiment 4 of this invention (AA cross section of FIG. 2). Sectional drawing of the principal part of the vacuum cleaner in Embodiment 5 of this invention (AA cross section of FIG. 2) (A) Perspective view of a vacuum cleaner body of a conventional vacuum cleaner (b) Cross-sectional view of a protector mounting portion of the vacuum cleaner body (c) Cross-sectional view showing a state of the protector during operation Sectional drawing of the principal part of the vacuum cleaner which shows another conventional example Sectional drawing of the principal part of the vacuum cleaner which shows another conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vacuum cleaner main body 11 Hose 12 Air inlet 15 Extension pipe 16 Floor suction tool (suction tool)
17 Under the body cover (outside)
18 On the body cover (outside)
19 Roller 20 Caster 24 Dust box (dust collection part)
26, 38a-38c, 39a, 39b, 40a, 40b, 42-44 Protector 26a Opening a
26b opening b
26c Foamed resin portion 26d Locking member 26e Skin 26f Concavity and convexity 27 Motor (electric blower)

Claims (22)

A vacuum cleaner comprising a protector for reducing impact at the time of collision, wherein the protector is formed of a foamed resin portion formed of a foamed resin and a skin made of a material different from the foamed resin portion while covering the foamed resin portion . The vacuum cleaner according to claim 1, wherein a locking member for attaching to the protector is formed on the protector. The electric vacuum cleaner according to claim 1 or 2, wherein the foamed resin portion is formed of polyethylene. The electric vacuum cleaner according to any one of claims 1 to 3, wherein the foamed resin portion is formed of a low resilience foamed resin. The electric vacuum cleaner according to any one of claims 1 to 3, wherein the foamed resin portion is formed of a highly repellent foamed resin. The vacuum cleaner according to any one of claims 2 to 5, wherein the foamed resin portion and the locking member are bonded to each other. The vacuum cleaner according to any one of claims 1 to 6, wherein the foamed resin portion and the skin are bonded. The vacuum cleaner according to any one of claims 1 to 7, wherein the thickness of the foamed resin portion is 3 mm or more and the thickness of the skin is 1.5 mm or more. The vacuum cleaner of any one of Claims 1-8 provided with the vacuum cleaner main body which incorporated the electric blower which emits a suction wind, and arranged the protector in at least one part of the outline of the said vacuum cleaner main body. A vacuum cleaner main body having an electric blower for generating suction air and having an intake port communicating with the electric blower, a suction tool for sucking dust, one end connected to the intake port, and the other end communicated with the suction tool The vacuum cleaner of any one of Claims 1-8 provided with the hose which carries out and arrange | positioned the protector to at least one part of the outline of the said hose. A vacuum cleaner main body having an electric blower for generating suction air and having an intake port communicating with the electric blower, a suction tool for sucking dust, one end communicating with the suction port, and the other end communicating with the suction tool The vacuum cleaner according to any one of claims 1 to 8, further comprising a protector disposed on at least a part of an outline of the extension tube. The vacuum cleaner main body which incorporated the electric blower which emits a suction wind, and the suction tool which attracts | sucks dust connected to the said electric blower, The protector was distribute | arranged to at least one part of the outline of the said suction tool. An electric vacuum cleaner given in any 1 paragraph. The vacuum cleaner according to claim 12, wherein a protector is provided on an outer shell other than the cleaning surface side of the suction tool. A vacuum cleaner body having a built-in electric blower that emits suction air, and a cleaning attachment that is detachably connected so as to communicate with the electric blower, and a protector is disposed on at least a part of an outline of the cleaning attachment The vacuum cleaner of any one of Claims 1-8. A vacuum cleaner main body including an electric blower that emits suction air; and a suction tool that communicates with the electric blower and sucks dust; and a traveling means is provided in the vacuum cleaner main body and / or the suction tool. The vacuum cleaner according to any one of claims 1 to 8, wherein a protector is disposed on at least a part of the outer shell. The electric vacuum cleaner according to any one of claims 1 to 15, wherein about 1/3 or more of the entire surface area of the outer shell of the electric vacuum cleaner is covered with a protector. The vacuum cleaner according to any one of claims 1 to 16, wherein a urethane-based or ethylene-based resin material is used as a material for forming the foamed resin portion. The vacuum cleaner of any one of Claims 1-17 which provided the unevenness | corrugation in the surface of the skin. The vacuum cleaner according to any one of claims 1 to 18, wherein ultrafine fibers are applied to the surface of the skin. The vacuum cleaner according to any one of claims 1 to 19, wherein a color of the skin and a color of the foamed resin portion are the same or similar colors. The vacuum cleaner according to any one of claims 2 to 5 and 7 to 20, wherein the locking member is made of hard resin or metal and the locking member and the foamed resin portion are integrally molded. The vacuum cleaner according to any one of claims 1 to 21, wherein an opening is provided in a part of the protector.

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