JP2512816Y2 - Vehicle vacuum cleaner - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a vehicle cleaner installed in a car wash, a service station, or the like and mainly used for cleaning the interior of an automobile or the like.

[Prior Art] Conventionally, there has been a vehicular vacuum cleaner of a type that includes a large suction device and a plurality of dust suction ports, operates for a certain period of time after charging a fee, and mainly cleans the interior of a vehicle. In this type of vacuum cleaner, for example, as seen in Japanese Patent Laid-Open No. 63-130452, by raising a dust suction hose extending from the main body through a boom, the nozzle and the dust suction hose come into direct contact with the ground and become dirty. It prevents it from being damaged.

Therefore, the boom is always urged by a biasing means such as a spring in the direction to be started, and it interlocks with the movement of the dust suction hose during work, and when the force pulling the hose is released, it is returned to the predetermined position again. Operates to return.

[Problems of the prior art] Therefore, when actually performing cleaning using the above-described vacuum cleaner, the user always works while receiving the restoring force for the boom to return to a predetermined position. Moreover, considering the deterioration of the elastic force of the spring due to long-term use,
Since the boom's restoring force is set to be stronger, the amount of work is generally excessive for a weak user such as a woman. Further, even when a service person is working at a service station or the like, the degree of fatigue becomes large when he or she frequently uses the work, if the work is repeated for a long time.

Furthermore, the spring deteriorates due to operating conditions, installation environment, etc., and the force required to tilt the boom and the boom's return force change.For example, it seems that the boom does not return sufficiently even if you remove your hand from the dust collection hose. In such a case, the spring must be replaced with a new one, which requires a lot of work and increases the running cost.

[Object of the Invention] Therefore, the present invention solves the above problems and provides a convenient vehicle cleaner in which the force required to tilt the boom and the restoring force can be arbitrarily set according to the use conditions. It is intended to be provided.

[Means for Achieving the Purpose] In order to achieve the above-mentioned object, a main body provided with a suction device, a boom extending above the suction device from the suction device, and a tip of a flexible hose connected to the boom tip are provided. The attached dust suction nozzle, the base provided on the top of the main body for supporting the boom so as to be horizontally rotatable and vertically swingable, and the base is provided to urge the boom to always stand up. The boom is provided with a support portion extending rearward in the swing direction of the boom, the spring is attached between the support portion and the base portion, and the spring attachment fulcrum in the support portion is used as the support portion. It is configured to be movable and adjustable on a predetermined track formed along it so that the force required to tilt the boom and the return force can be set arbitrarily.

[Embodiment] An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is an explanatory view showing the appearance of an embodiment of the present invention.
Reference numeral 1 denotes a cleaner main body, which is provided with a coin insertion portion 2, a monitor panel 3 formed by arranging display elements, and an opening / closing door 4 for taking out a dust container on the front surface. A boom 5 is erected on the top of the main body, and a flexible dust suction hose 6 is suspended from the upper end of the boom. The boom 5 is made of hollow pipe material and is connected to a suction device (not shown) provided in the main body to form a suction pipe line. The dust suction hose 6 has a dust suction nozzle 7 at its tip, and is locked to the nozzle hook 10 on the side surface of the main body when not in use. Reference numeral 8 denotes a base of the boom 5, which is rotatably supported in the horizontal direction with respect to the top of the main body, and pivotally supports the boom in a vertical direction at a fulcrum 11. Reference numeral 9 denotes a spring for constantly urging the boom in the direction of starting up, which acts to return the boom tilted by the dust collecting hose to the predetermined start-up position as shown in FIG. .

FIG. 2 is an explanatory view showing the base 8 in more detail.

The base 8 has a base 8-a and a boom bracket 8-b.
Composed of members. The base 8-a is a box-shaped member having a substantially cross section,
A spring support bracket 15 is provided in the lower portion thereof horizontally and at an appropriate distance from the main body top plate, and is attached to the main body 1 at the connecting portion 14 so as to be rotatable in the horizontal direction.

Like the base, the boom bracket 8-b is also a box-shaped member having a substantially cross-sectional shape, and in a normal start-up state in which no force is applied to the boom, the spring support portion has an angle α so as to have a horizontal positional relationship with the main body top plate. Forming 16. A spring 9 is inserted between the spring support portion 16 and the spring support bracket 15 to connect the spring support portion 15 and the spring support bracket 15 while urging them in a direction to draw each other. The circumference of the spring 9 is covered with a cylindrical spring cover 12, and the cover 12 also expands and contracts according to the spring 9 to prevent foreign matter from being caught and to prevent deterioration caused by rust or the like. Improves durability.

In addition, a hose 13 that connects the boom 5 and the suction device inside the main body 1 is passed through the inner release space of the base 8-a while leaving a margin in length, and the boom bracket 8- The dimensional change of the dust suction pipe due to the swing of b is absorbed.

Next, referring to FIG. 3, the structure of the spring mounting portion will be described. Here, (a) is an explanatory view of the base 8 as viewed from the side, and (b) is an explanatory view of the base 8 as viewed from the B direction in (a).

An adjusting bolt 17 is inserted into the inside of the spring support portion 16, and an adjusting knob 20 integrally connected to the adjusting bolt is attached to the outside thereof. Further, a stopper 19 is attached to the end portion on the opposite side to the side where the adjustment knob is attached, and together with a fixing bracket 21 provided inside the spring support portion 16, an adjustment bolt is fixed. In addition,
The adjustment bolt is loosely attached to the spring support portion 16 and does not directly give resistance when the adjustment knob is rotated. Here, 18 is a spring attachment fulcrum that is connected to the spring 9 and the spring cover and is screwed to the adjustment bolt 17. The spring mounting fulcrum slides on the adjusting bolt as shown by turning the adjusting knob in a predetermined direction.

FIG. 4 is a diagram for explaining the moment about the fulcrum 11 of the base.

The spring mounting fulcrum 18 is the fulcrum as shown in (a).
At the farthest position away from 11 by a distance L, and when the tensile force f of the spring acts on it, moment f × L acts on the fulcrum 11. This moment is the force to start the boom, in other words, the weight when the boom is tilted in the direction of the arrow.

(B) shows that the spring mounting fulcrum 18 is fulcrum for the distance L1.
It is the figure which showed the state which moved to the 11 side. In this case, assuming that the y component of the spring tension force f is fy, a moment fy × (L−L1) acts on the fulcrum 11.

As described above, comparing the moments in the cases of (a) and (b), the moment of (a) is larger, and the closer the distance between the spring mounting fulcrum and the fulcrum 11 on the base side is, the smaller the moment becomes. The power required to defeat it is reduced.

[Effects of the Invention] As described above, according to the present invention, the returning force for raising the boom can be freely set by the user, and the force required to tilt the boom can be adjusted arbitrarily, so that the user who is weak can It is possible to minimize the fatigue associated with work.

In addition, even if the boom's restoring force changes due to deterioration of the spring and it is not possible to sufficiently return to the prescribed start-up position, the restoring force can be adjusted to the desired magnitude without replacing with a new spring if it is within the adjustment range. Since it can be returned, the maintenance cost can be improved and the running cost can be reduced.

A spring with a relatively strong tensile force is used to urge the boom swing, and it is not easy to change the spring attachment position by hand, but the spring attachment fulcrum should be placed along the support. By moving on a predetermined orbit formed by the above, adjustment can be performed by a convenient method such as turning the adjustment knob. Moreover, the supporting portion projects rearward in the swinging direction at a predetermined angle with the axial direction of the boom, and by moving the spring attachment fulcrum along this supporting portion, the bias is adjusted by the change in the moment. The fulcrum can be moved with a smaller load than in the case of directly expanding and contracting the spring, and the operability is improved. As a result, it is possible to obtain a convenient vacuum cleaner that can be easily adjusted and operated according to the user.

[Brief description of drawings]

FIG. 1 is an explanatory view showing the external appearance of an embodiment of the present invention. FIG. 2 is an external perspective view of the base 8. FIG. 3 is a side view and a rear view of the base showing the structure of the spring mounting portion. FIG. 4 is a diagram for explaining the moment about the fulcrum 11 of the base. 1 is a main body, 5 is a boom, 6 is a flexible hose, 7 is a dust suction nozzle, 8 is a base, 9 is a spring, 16 is a support portion, and 17 is a predetermined track for moving a spring mounting fulcrum. bolt.

Claims (1)

(57) [Scope of utility model registration request] 1. A main body provided with a suction device, a boom extending above the suction device from the suction device, a dust suction nozzle attached to the tip of a flexible hose connected to the boom tip, and a body top. A base for supporting the boom to be pivoted horizontally and swingable in the vertical direction; and a spring provided on the base for urging the boom in a direction that always raises the boom,
The boom is provided with a support portion projecting rearward of the swing direction at a predetermined angle with the axial direction of the boom, and a spring is attached between the support portion and the base portion, and a spring attachment fulcrum of the support portion is provided. A vacuum cleaner for a vehicle, which is configured to be movable and adjustable on a predetermined track formed along the support portion.