JP3744007B2 - Vacuum cleaner - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to household and industrial vacuum cleaners, and more particularly to a traveling means of a vacuum cleaner body in recent years.
[0002]
[Prior art]
The configuration of this type of conventional vacuum cleaner will be described with reference to the drawings.
[0003]
In FIG. 12, reference numeral 31 denotes a main body of an electric vacuum cleaner incorporating an electric blower, etc., having a suction port 39 for connecting a hose on the front surface of the main body 31, and a caster 33 on the rear side of the bottom. It is mounted so that it can rotate freely. Further, on both side surfaces of the main body 31, a roller 32 is inserted into a bearing 35 of the main body 31 so that the shaft 36 of the roller 32 can rotate as shown in FIG. The provided claw 37 prevents it from being detached from the main body 31. 14 and 15 show an example in which a tire 38 made of soft vinyl chloride or the like is provided on the outer periphery of the roller 32, and the contact with the floor surface is softened.
[0004]
Here, when the user pulls the main body 31 through the hose during cleaning, the roller 32 rotates in the front-rear direction of the main body 31, and in the case of changing from the direction that has been advanced so far. When the hose is swung from side to side, the rear portion of the main body 31 faces in the direction opposite to the direction pulled by the user by the caster 33, and at the same time, the front portion of the main body 31 faces in the direction in which the user pulls. To follow. Further, when overcoming a sill or the like, the roller 32 or the tire 38 comes into contact with the sill, rides on, and gets over.
[0005]
[Problems to be solved by the invention]
However, in the structure shown in FIG. 12, since the entire roller 32 is made of hard resin or the like, the sound of contact with the floor surface when traveling is large, and in particular, there is a step such as a sill. There is a loud impact sound when getting over. At the same time, it was easy to scratch the steps such as the floor and sill. Further, when the side surface portion of the roller 32 hits furniture or the like, the roller 32 is easily damaged.
[0006]
Next, in the structure shown in FIG. 14, since the tire 38 is made of soft vinyl chloride or the like, the weight is increased, and an extra force for pulling the main body 31 through the hose is required, and the carrying is heavy. Met. In addition, when the user tries to move the roller 32 sideways, the floor surface may be damaged because it is difficult to slip on the floor surface. Further, since this structure is generally formed by integral molding, it is necessary to manufacture a die for the roller unit when changing the outer diameter, and the user is provided with an expensive one. It was in a state.
[0007]
Therefore, the present invention is intended to solve the conventional problems as described above, and is lightweight and suppresses the sound of contact with the floor surface when traveling, and particularly when the vehicle travels over a step such as a sill. The first object is to suppress the sound and make it difficult to damage the floor surface, and to facilitate the movement of the roller in the side surface direction.
[0008]
A second object is to prevent the furniture from being damaged by the roller side surface.
[0009]
It is a third object of the present invention to provide an inexpensive roller unit while preventing damage to furniture or the like due to the roller side surface.
[0010]
[Means for Solving the Problems]
In order to achieve the first and second objects, the invention according to claim 1 is characterized in that a main body incorporating an electric blower and the like, a roller on both side surfaces of the main body, and a rotatable roller are arranged. The roller is extruded with a soft material, and the raised cloth is fixed to the roller grounding surface by simultaneously extruding the raised cloth at the time of molding, so that the contact between the roller grounding surface and the side surface is secured. It is molded so that the soft material and the raised cloth cover the vicinity of the ground.
[0011]
In order to achieve the first and third objects, the invention according to claim 2 is characterized in that a main body incorporating an electric blower and the like, a roller on both side surfaces of the main body, and a rotatable roller are disposed. A brushed cloth is fixed to the ground contact surface of the roller, and the brushed cloth and the resin are welded at the same time as molding with a heat press that matches the outer shape of the roller, and the brushed cloth is attached to the roller. It sticks from the ground to the vicinity of the ground contact surface.
[0012]
[Action]
According to the first aspect of the present invention , the elastic force of the brushed fabric absorbs the impact between the roller and the floor surface, suppresses the sound of contact with the floor surface when traveling, especially the sill It can suppress the impact sound when getting over the level difference and make it difficult to damage the floor surface, and can also facilitate the movement of the roller in the lateral direction by sliding the brushed fabric. It is. In addition, the raised cloth provided on the side surface from the ground contact surface can provide softness during running, and when the roller side surface comes into contact with the furniture, the cloth is brought into contact with the furniture due to the intervention of the raised cloth. In such a case, scratches caused by rubbing the roller can be prevented.
[0013]
Further, according to the invention described in claim 2 , the impact between the roller and the floor surface is absorbed by the elasticity of the hair of the raised cloth, and the sound of contact with the floor surface during traveling is suppressed, particularly the threshold. It is possible to suppress the impact sound when climbing over a level difference, and to make it difficult to damage the floor surface. Further, the movement of the roller in the lateral direction can be facilitated by the sliding of the bristles. Is. In addition, a raised cloth and a thin sheet of resin are welded at the same time as molding with a heat press that matches the outer shape of the roller, and this is matched to the shape of the roller grounding surface and the side surface near the grounding surface from the side. Since it can be easily fixed and provided, the assembling cost can be reduced and an inexpensive roller unit can be provided to the user.
[0014]
【Example】
Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings.
[0015]
In FIG. 2, reference numeral 1 denotes a main body of a vacuum cleaner incorporating an electric blower, etc., having a suction port 12 for connecting a hose on the front surface of the main body 1, and a caster 3 on the rear side of the bottom. It is attached so that it can rotate freely. Further, on both side surfaces of the main body 1, a roller-2 is inserted into a bearing 5 of the main body 1 so that the shaft 6 of the roller-2 can rotate as shown in FIG. The provided claw 7 prevents the main body 1 from being detached. Further, a raised cloth 4 is bonded to the grounding surface of the roller-2.
[0016]
Here, when the user pulls the main body 1 through the hose during cleaning, the roller-2 rotates in the front-rear direction of the main body 1 and changes from the direction in which it has traveled so far. When the hose is swung from side to side, the rear part of the main body 1 faces opposite to the direction pulled by the user by the caster-3, and at the same time, the front part of the main body 1 faces in the direction pulled by the user and the user advances. It follows the direction. In addition, when moving over a threshold, Roller-2 comes into contact with the threshold, rides on it, and gets over it.
[0017]
The operation of the above configuration is as follows.
[0018]
It is lightweight and suppresses the sound of contact with the floor surface when traveling, especially the impact sound when climbing over steps such as a sill, and makes it difficult to scratch the floor surface. The roller can be easily moved in the lateral direction by sliding.
[0019]
Next, a second embodiment of the present invention will be described with reference to FIGS.
[0020]
A tire 8 made of a soft material such as soft polypropylene is provided in the vicinity of the ground contact surface on the side surface of the roller-2, and the end surface of the tire 8 on the ground contact surface side protrudes from the adhesive surface of the raised cloth 4 by about 1 mm. . Other configurations are the same as those of the first embodiment.
[0021]
The effect | action by this structure is as follows.
[0022]
While suppressing the sound of contact with the floor surface when traveling, it is difficult to damage the floor surface, and further, the movement of the roller in the lateral direction can be facilitated by the sliding of the raised cloth 4, and in particular When climbing over a step such as a sill, a part of the hair of the raised cloth 4 is pushed in a concentrated manner in contact with the corner of the sill, etc. It is possible to suppress the scratches and make it difficult to scratch the steps such as the threshold.
[0023]
Further, a third embodiment of the present invention will be described with reference to FIG.
[0024]
A tire 8 having a raised cloth 4 bonded thereto is fitted to the outer periphery of the roller-2 on the ground contact surface side so as not to be detached by the claws 13. Other configurations are the same as those of the first embodiment.
[0025]
The effect | action by this structure is as follows.
[0026]
When changing the outer diameter and contact width of the roller contact surface, the roller part can be shared and a molding die only for the tire part can be manufactured. Is something that can be provided.
[0027]
Further, a fourth embodiment of the present invention will be described with reference to FIGS.
[0028]
6 and 7 show a structure in which a soft body 10 made of soft polypropylene or the like and a base cloth 11 portion of a raised cloth 9 are simultaneously extruded and bonded by extrusion molding. As shown in FIG. 8, this is provided by fitting and bonding to the U-shaped portion of Roller-2. Other configurations are the same as those of the first embodiment.
[0029]
The effect | action by this structure is as follows.
[0030]
As shown in FIG. 8, it becomes easy to provide a raised cloth also on the side portion of the roller, and the furniture can be prevented from being damaged by the roller side surface.
[0031]
Further, a fifth embodiment of the present invention will be described with reference to FIGS.
[0032]
In FIG. 9, the base fabric 11 and the resin thin plate 14 are welded at the same time that the raised fabric 9 and a thin resin plate 14 such as ABS of about 1 mm are molded with a heat press that matches the outer shape of the roller. As shown in FIG. 10, it is punched only in the tire 15 portion and is adhered to the roller-2 from the side surface. Other configurations are the same as those of the first embodiment.
[0033]
The effect | action by this structure is as follows.
[0034]
It is easy to provide a raised cloth also on the side surface portion of the roller, and it is possible to prevent the roller side surface from being scratched on furniture and the like, and it can be easily adhered and provided from the side surface. Therefore, the assembly cost can be reduced, and an inexpensive roller unit can be provided to the user.
[0035]
Further, a sixth embodiment of the present invention will be described with reference to FIG.
[0036]
Roller-2 is composed of a hole 17 and a spoke 16 in the vicinity of the rotating shaft on the side surface and between the contact surface portion, and a roller 15 is formed by heat press molding according to the outer shape of roller-2. It is provided by adhering to all side surfaces from the grounding surface of 2. Other configurations are the same as those of the first embodiment.
[0037]
The effect | action by this structure is as follows.
[0038]
The weight of the roller-2 can be reduced, the labor required for pulling the main body during use can be reduced, and a brushed fabric that has been heat press-molded to the outer shape of the roller-2 can be used as the roller-2. By providing the roller unit on all sides from the grounding surface, it is possible to secure the strength of the roller unit and to prevent scratches caused by rubbing the roller, such as when traveling while in contact with furniture.
[0039]
【The invention's effect】
As apparent from the above embodiments , according to the first means of the present invention, by providing a brushed cloth on the ground contact surface of the roller, it is lightweight and can be contacted with the floor surface when traveling. Suppresses the sound, especially when overcoming a step such as a sill, and makes it difficult to scratch the floor surface. In addition, sliding of the raised cloth makes it easy to move the roller in the lateral direction. Is something that can be done. Also, a soft body made of a soft material or the like and a raised fabric base fabric portion that is extruded and fixed simultaneously at the time of extrusion molding are provided by fitting and bonding to the U-shaped portion of the roller. As a result, it is easy to provide a raised cloth also on the side portion of the roller, and the furniture can be prevented from being damaged by the roller side surface.
[0040]
Further, according to the second means of the present invention, by providing a brushed cloth on the ground contact surface of the roller, it is lightweight and suppresses the sound of contact with the floor surface when traveling, especially a sill or the like. It is possible to suppress an impact sound when climbing over a level difference and make it difficult to damage the floor surface. Furthermore, the movement of the roller in the side direction can be facilitated by sliding of the raised cloth. Also, a brushed fabric and a thin sheet of resin are molded together with a heat press that matches the outer shape of the roller, and welded at the same time. This is punched only into the tire portion, and adhered to the roller from the side. Therefore, it is easy to provide a raised cloth also on the side surface portion of the roller, and it is possible to prevent the roller side surface from being damaged and to be easily adhered from the side surface. Therefore, the assembly cost can be reduced and an inexpensive roller unit can be provided to the user.
[Brief description of the drawings]
1 is a sectional view of a roller portion of the vacuum cleaner according to the first embodiment of the present invention, and is a cross-sectional view taken along the line AA in FIG. 2. FIG. 2 is a side view of the vacuum cleaner. Side view of the vacuum cleaner of the second embodiment to the fourth embodiment. FIG. 4 is a sectional view taken along the line BB of FIG. 3. FIG. 5 shows a cross section of the roller portion of the vacuum cleaner of the third embodiment of the present invention. FIG. 6 is a cross-sectional view taken along the line BB in FIG. 3. FIG. 6 is an external perspective view showing the structure of the parts of the fourth embodiment of the present invention. FIG. 9 is a cross-sectional view of the roller portion of the electric vacuum cleaner, taken along the line BB of FIG. 3. FIG. 9 is an external perspective view showing the configuration of parts of the electric vacuum cleaner according to the fifth embodiment of the present invention. FIG. 11 is an exploded perspective view showing a configuration of parts of a vacuum cleaner. FIG. 11 is an exploded perspective view showing a roller portion of a vacuum cleaner according to a sixth embodiment of the present invention. Rear view 13 D-D sectional view of FIG. 12 and FIG. 14 is a side view of a vacuum cleaner showing another conventional example [15] E-E sectional view of FIG. 14 [Description of symbols]
1 Body 2 Roller
3 Casters
4 Brushed cloth 8 Tire 9 Brushed cloth 10 Soft body 11 Base cloth 15 Tire 16 Spoke

Claims (2)

A body having a built-in such as an electric blower rotatably on both sides of the body B - La - the arranged, said Russia - la - the extruded soft material, wherein by pushing the raised fabric simultaneously during the molding An electric vacuum cleaner in which the raised cloth is fixed to a grounding surface of a roller, and the soft material and the raised cloth cover the grounding surface of the roller and the vicinity of the grounding surface of the side surface. A main body containing an electric blower and the like, and a roller rotatably disposed on both side surfaces of the main body, a brushed cloth is fixed to the grounding surface of the roller, and the brushed cloth and the resin are bonded to the roller. A vacuum cleaner in which the brushed cloth is welded from the grounding surface of the roller to the vicinity of the grounding surface of the side surface by welding at the same time as molding with a heat press adapted to the outer shape of-.

Images