JP5350899B2 - Dust collector - Google Patents

Abstract

The invention provides a dust collector, which enables not only to easily pass across steps, but also to prevent the wheel damage without destroying the beauty. Front wheels (15) are configured at a forward direction side (Y) of a base (10) of the dust collector along the prescribed walking direction and a pair of rear wheels (16) is configured in a left and right manner at the head end of the backward direction (X) side in the walking direction. A casing (20) for collecting the dust is disposed on the base and a at least circumferential wheel cover (17) is formed to cover the rear wheels, enabling the front end part (17A) of the wheel cover at the backward direction (X) side to withdraw to a more back position, compared with a vertical plane (S) in contact with the front end of the rear wheels at the backward direction (X) side.

Description

  In the present invention, a dust collection tank is mounted on a base in which a front wheel is disposed on a forward direction side in a predetermined traveling direction and a pair of left and right rear wheels are disposed at a leading position on the backward direction side in the traveling direction. In addition, the present invention relates to a dust collector in which a cowl that covers at least the peripheral surface of the rear wheel is formed.

  For example, Patent Document 1 discloses a vacuum cleaner provided with a cowl that places a cylindrical container such as a dust collection tank and covers a wheel locally.

US Pat. No. 5,528,794

  By the way, in a dust collector represented by this type of vacuum cleaner, when trying to get over a step such as a staircase, the cowl gets caught in the step, which prevents the dust collector from moving along the step. It was. For this reason, in order for a dust collector to get over a level | step difference, this dust collector had to be lifted and moved, and the burden of the operator became large.

  As a countermeasure against this, it is conceivable not to provide a cowl. However, if the cowl is not provided, the above-mentioned wheel for guiding the dust collector in the traveling direction will be exposed, and the appearance of the dust collector as a whole will be impaired and the wheel may be damaged. There is a risk that the surroundings may become dirty due to the ease of the wheel or the exposed wheels.

  The present invention has been proposed in view of such a situation, and an object of the present invention is to provide a dust collector capable of easily overcoming a step and preventing damage to a wheel without impairing aesthetic appearance. To do.

The dust collector according to the first aspect of the present invention is a dust collector on a base in which a front wheel is disposed on the forward direction side in a predetermined traveling direction and a pair of left and right rear wheels are disposed at the leading position on the backward direction side in the traveling direction. A dust collector on which a tank is mounted and a cowl that covers at least the peripheral surface of the rear wheel is formed, and a front end portion of the cowl on the reverse direction side is in contact with a front end of the rear wheel on the reverse direction side Retracted from the vertical surface, a shock absorber that absorbs shock to the base is projected on the outer periphery of the base, and the upper surface of the dust collection tank is in an upright state with respect to the upper surface. A handle that is pivotably connected is provided, and the front end of the cowl protrudes from the base in a state of being retracted from the vertical surface .

According to the dust collector of the first aspect of the invention, when the dust collector gets over the stepped portion such as the step of the staircase, the rear wheel comes into contact with the stepped portion before the cowl. Thereby, when the dust collector gets over the stepped portion, the front end portion of the cowl is not caught by the stepped portion. Therefore, the rear wheel moves along the stepped portion, and the dust collector can easily get over the stepped portion.
Furthermore, a part of the rear wheel can be seen from between the vertical surface and the tip part, and the rear wheel is not exposed, and the aesthetic appearance of the entire dust collector is not impaired. In addition, it is possible to prevent the rear wheel from being damaged by the cowl formed in a portion excluding the space from the vertical surface to the tip portion.
According to the first aspect of the present invention, even if the base is accidentally collided with a structure or the like, an impact is applied to the outer periphery of the base via the shock absorber. For this reason, it is possible to mitigate the impact to be applied to the base by the shock absorber, and to prevent the base from being damaged.

It is a perspective view of the dust collector of the embodiment of the present invention. It is a rear view of the dust collector. It is operation | movement explanatory drawing when the dust collector gets over the stairs.

  An embodiment of the present invention will be described with reference to FIGS. In this specification, the left side in FIG. 1 will be described as the front, and the right side in FIG. 1 will be described as the back. The illustrated dust collector 1 includes a traveling platform 10 and a dust collection tank 20. The traveling platform 10 is formed of synthetic resin. A circular concave groove 11 is provided on the upper surface of the carriage 10. A dust collecting tank 20 is fitted in the concave groove 11. As a result, the dust collection tank 20 is placed on the upper surface of the traveling platform 10. The traveling base 10 is an example of the base of the present invention.

  A housing 12 is formed on the traveling table 10 on an outer peripheral surface (front surface and left and right side surfaces) excluding the rear surface of the traveling table 10. The housing 12 is provided integrally with the traveling platform 10 so as to protrude from the front surface and the left and right side surfaces of the traveling platform 10. Further, a belt-like elastic member 13 is bonded along the outer peripheral surface of the housing 12. Here, the belt-like elastic member 13 is made of synthetic rubber.

  A front wheel 15 is rotatably provided on the bottom surface of the front center of the traveling platform 10. A pair of rear wheels 16 are rotatably provided on the left and right sides of the traveling platform 10. In the present embodiment, the front side of the traveling platform 10 is the forward direction side of the traveling platform 10, and the rear side of the traveling platform 10 is the backward direction side of the traveling platform 10. As shown in FIG. 3, the pair of rear wheels 16 is disposed at a position that becomes the head of the direction X (hereinafter, referred to as the “passing direction X”) in which the traveling platform 10 gets over the steps of the stairs 30. The traveling platform 10 is independent by the front wheels 15 and the rear wheels 16. When an operator pulls the dust collector 1 by holding a handle H described later, the front wheel 15 and each rear wheel 16 rotate, and the traveling platform 10 travels.

  About half of the peripheral surface of each rear wheel 16 protrudes from the back surface of the traveling platform 10 as shown in FIG. The upper peripheral surface of each rear wheel 16 is covered with a rear cowl 17 as shown in FIGS. The rear cowl 17 extends from the rear upper end of the housing 12 in a direction in which the back surface of the traveling platform 10 is located. As shown in FIG. 3, the end portion 17 </ b> A of the rear cowl 17 is formed so as to be positioned on the forward direction Y side of the carriage 10 with respect to the vertical surface S that contacts the front end of each rear wheel 16 in the passing direction X. .

  The dust collection tank 20 includes an upper surface unit 21 and a dust collection unit 25. The upper surface unit 21 is fixed on the dust collection unit 25 by lock members 22 provided on both side surfaces of the dust collection unit 25. The upper surface unit 21 accommodates a dust collection motor, a dust collection fan, and the like. A handle H is connected to the upper surface of the upper surface unit 21 so as to be rotatable in an upright state.

  The dust collection unit 25 accommodates a filter made of, for example, a paper bag. Here, the dust collection unit 25 is formed of stainless steel. A dust suction port 26 is formed on the front surface of the dust collection unit 25. A dust collection hose is connected to the dust suction port 26. When collecting dust, the dust collecting motor is operated to rotate the dust collecting fan. Along with this, dust is caused to flow from the dust suction port 26 to the dust collecting unit 25 via the dust collecting hose.

  Next, the operation of the dust collector 1 overcoming the steps of the stairs 30 will be described. First, as shown in FIG. 3, the operator turns the handle H to stand upright on the upper surface of the upper surface unit 21. Thereafter, the operator pulls the dust collector 1 on the floor F with the handle H held in his / her hand until the rear wheels 16 come into contact with the step 31 of the stairs 30 and cannot rotate. To do.

  Subsequently, the operator lifts the dust collector 1 from the floor F toward the upper stage of the stairs 30 by holding the handle H in his hand and pulling it up in the direction of the arrow in FIG. At this time, each rear wheel 16 is disposed at the leading position in the pass-through direction X, and is in contact with the stepped portion 31 before the end portion 17A by the position setting of the end portion 17A. For this reason, when each rear wheel 16 moves along the step portion 31 and gets over the step portion 31, the end portion 17A is not caught by the step portion 31. The above-mentioned boarding direction X side is an example of the backward direction side of the predetermined traveling direction of the present invention, and the end portion 17A is an example of the front end part of the backward direction side of the cowl of the present invention.

  Further, when the operator pulls the dust collector 1 with the handle H, for example, the traveling platform 10 may accidentally collide with the wall of the building. Even if the side surface or front surface of the traveling platform 10 is accidentally traveled toward the wall of the building, the impact that is about to be applied to the traveling platform 10 from the wall is absorbed by the belt-shaped elastic member 13. The belt-like elastic member 13 is an example of the shock absorber according to the present invention.

<Effect of this embodiment>
In the dust collector 1 of the present embodiment, as shown in FIG. 3, since the end portion 17A located at the head in the pass-through direction X is retracted from the vertical surface S, each rear wheel 16 of the dust collector 1 is stepped. When getting over 31, each rear wheel 16 comes into contact with the step portion 31 before the end portion 17 </ b> A. Thereby, when the dust collector 1 gets over the step portion 31, the end portion 17 </ b> A is not caught by the step portion 31. Therefore, each rear wheel 16 moves along the step portion 31, and the dust collector 1 can easily get over the step portion 31.
Furthermore, although a part of the peripheral surface of each rear wheel 16 can be seen from the vertical surface S to the end portion 17A, the peripheral surface of each rear wheel 16 is not exposed, and the overall aesthetic appearance of the dust collector 1 is impaired. It will not be. In addition, the rear cowl 17 formed in a portion excluding the portion from the vertical surface S to the end portion 17A can protect the peripheral surface of each rear wheel 16 and prevent the rear wheels 16 from being damaged.
In addition, as described above, since the peripheral surface of each rear wheel 16 is not exposed, even if dust or dirt adheres to the peripheral surface, the peripheral surface surrounds the dust collector 1. It can suppress soiling things.

  In addition, since a pair of rear wheels 16 are rotatably provided on the left and right of the traveling platform 10, the dust collector 1 is moved over the above-mentioned after the pair of rear wheels 16 stabilizes the posture of the dust collector 1. While being able to guide to the direction X, each rear wheel 16 moves along the step part 31, and the dust collector 1 can get over the step part 31 easily.

  Further, for example, even when trying to cause the traveling table 10 to accidentally collide with the wall of a building, an impact is applied to the front surface and the left and right side surfaces of the traveling table 10 via the belt-shaped elastic member 13. For this reason, an impact is absorbed by the elastic member 13, and the impact to be applied to the traveling platform 10 is reduced. Therefore, it is possible to suppress the traveling platform 10 from being damaged by the impact.

  The present invention is not limited to the embodiment described above, and can be implemented by appropriately changing a part of the configuration without departing from the spirit of the invention. For example, unlike the embodiment described above, the position of the end 17A of the rear cowl 17 is within a range that does not impair the appearance of the dust collector 1 without the end 17A being caught on the stepped portion 31 and the rear wheels 16 not being exposed. Further, it may be moved to the forward direction Y side or the overpass direction X side rather than the above-described embodiment.

  Further, the shape of the housing 12 and the elastic member 13 is not limited to the shape of the above-described embodiment, and the shape of the elastic member 13 is an appropriate shape capable of absorbing an impact to be applied to the traveling platform 10 from a building wall or the like. do it. Furthermore, unlike the embodiment described above, the housing 12 and the elastic member 13 may be provided so as to protrude from the entire circumference of the traveling platform 10.

  DESCRIPTION OF SYMBOLS 1 ... Dust collector, 10 ... Travel stand, 12 ... Housing, 13. Elastic member, 16 ... Rear wheel, 17 ... Rear cowl, 17A ... End of rear cowl, 20 ... Dust collecting tank, S ..Vertical surface in contact with the front end of the rear wheel, X

Claims (1)

A dust collection tank is mounted on a base on which a front wheel is disposed on the forward direction side in a predetermined traveling direction and a pair of left and right rear wheels are disposed at the leading position on the backward direction side in the traveling direction. A dust collector having a cowl covering at least the circumferential surface of the dust collector,
Retreating the front end portion of the cowl on the retreat direction side from a vertical surface in contact with the front end of the rear wheel on the retreat direction side ;
On the outer periphery of the base, a shock absorber that absorbs the shock to the base is protruded,
Provided on the upper surface of the dust collection tank is a handle that is rotatably connected so as to be upright with respect to the upper surface.
A dust collector , wherein a front end portion of the cowl is protruded from the base in a state of being retracted from the vertical surface .

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