JPH0532034Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a charging stand for a floor-moving vacuum cleaner.

Conventional technology Conventionally, when charging a vacuum cleaner with a built-in storage battery, charging is done by inserting a charging terminal into a charging receiver provided in a part of the vacuum cleaner, or by using a dedicated charging stand. In some cases, the vacuum cleaner is installed on the charging stand, and an electrical connection is made between the charging stand and the vacuum cleaner to perform charging. There was nothing I could do to charge it.

The conventional example shown in FIGS. 7 and 8 shows a state in which a hand-held vacuum cleaner is placed on a charging stand and is being charged, and will be described below based on the drawings. First, to explain the conventional example shown in FIG. 7, 1 is a dust suction chamber with a built-in filter (not shown), 2 is a vacuum cleaner body with a built-in fan motor and a storage battery 3; The chamber 1 is held detachably by a buckle 4. 5 has a receiving surface 6 that receives the rear surface of the vacuum cleaner body 2 when the vacuum cleaner body 2 is stood up with the rear surface facing the lower end, and the inner surface is in contact with the three side surfaces on the rear end side of the vacuum cleaner body 2. The charging stand has a concave portion 7 in contact with the charging stand, and houses a charger 8, a charging control circuit board 9, and the like. Reference numeral 10 denotes a pin-shaped charging terminal attached to the inside of the charging stand 5 so as to protrude upward from the receiving surface 6, and when the vacuum cleaner body 2 is placed on the receiving surface 6 in an upright state, charging is not possible. The terminal 10 is configured to fit through a hole 11 formed on the rear surface of the cleaner body 2 and to be connected to a terminal 12 made of a leaf spring provided inside the rear part of the cleaner body 2. The terminal 12 made of the leaf spring has a contact surface that can be displaced substantially perpendicularly to the rear surface of the cleaner body 2.

In addition, the conventional example shown in FIG. 8 is different from the conventional example shown in FIG. 7 in the terminal connection state between the charging stand and the vacuum cleaner main body, and there is a terminal on the inside of the rear part of the vacuum cleaner main body 2, which is almost the same as the rear surface of the vacuum cleaner main body 2. It has a terminal 13 made of a leaf spring with a contact surface that can be displaced in a parallel direction, and when the vacuum cleaner main body 2 is placed on the receiving surface 6 of the charging stand 5 in an upright state, the charging terminal 10 on the side of the charging stand 5 is It is fitted into the hole 11 on the rear surface of the cleaner body 2 and connected to the terminal 13. The other configurations are the same as the conventional example shown in FIG.

Problems to be Solved by the Invention However, with the above-mentioned conventional configuration, when charging the vacuum cleaner, it is necessary to lift the vacuum cleaner body above the charging stand, which requires a lot of effort for large floor-moving vacuum cleaners. Furthermore, when the vacuum cleaner body and the charging stand are mistakenly brought into contact during positioning, the impact is large and there is also a problem in terms of durability. Furthermore, in the conventional example shown in FIG. 7, there is only one contact point between the charging terminal 10 and the terminal 12, and no relative displacement occurs, so a wiping effect cannot be expected, and if dust gets caught, the contact resistance increases. There were problems such as voltage drop and heat generation, which deteriorated performance and made it impossible to ensure safety. In addition, in the conventional example shown in FIG. 8, the wiping effect can be obtained by sliding the terminal 13 with respect to the charging terminal 10, but it is necessary to precisely control the relative position, and furthermore, the position of the vacuum cleaner body 2 with respect to the charging stand 5 is The charging terminal 10 and the terminal 13 when attached and detached
Friction is caused by the friction between the two, and it takes more effort to remove the floor-moving vacuum cleaner, which is already heavy, from the charging stand 5.

This invention solves these problems,
The purpose of this invention is to provide a charging stand suitable for a floor-moving vacuum cleaner.

Means for Solving the Problem In order to solve this problem, the present invention is of a floor-moving type, has a built-in storage battery, and has a running roller disposed at the lower end of the rear part of which partially protrudes rearward. a recess into which the vacuum cleaner is received in an upright position with the rear surface being the lower end; an inclined surface that slopes downward from the front end of the recess; and a roller of the vacuum cleaner provided on both sides of the recess; The roller receiving portion has a flat surface connected to the inclined surface and an arc-shaped stop surface connected to the rear of the flat surface and abutting against the circumferential surface of the roller, and the roller receiving portion A charging terminal having an arcuate portion protruding upward from the hole formed in between is provided inside, and the arcuate portion is centered on a line pointing perpendicularly from the center of the roller of the vacuum cleaner placed on the receiving surface. The electric vacuum cleaner is arranged so that the charging terminal is positioned so that a charging receiving terminal provided on the rear surface of the vacuum cleaner can come into contact with the charging terminal.

Effect: With this configuration, when the vacuum cleaner is attached to or removed from the charging stand, the terminal on the vacuum cleaner side slides into contact with the circular arc portion of the charging terminal to obtain a wiping effect, and the circular arc portion of the charging terminal is connected to the charging stand. Since the force acts in the direction of detaching the vacuum cleaner from the vacuum cleaner, the operating force is light and the vacuum cleaner is easy to use.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings.

In FIGS. 1 to 6, 21 has a receiving surface 23 at the upper end that receives the vacuum cleaner body 22 in an upright state with the rear surface being the lower end, and roller fittings serving as roller receiving parts on both sides of this receiving surface 23. Matching recesses 24, 24
This charging stand is composed of a case 25 and a bottom plate 26. This charging stand 21 has a transformer 27
A charging control circuit board 28 is built in, a power switch 29 and a charging display LED 30 are arranged on the front, and a power cord 31 is provided on the side. Further, in the center between the roller fitting recesses 24 and 24, the charging stand 21, that is, the upper end of the case 25 protrudes slightly above the receiving surface 23, and a charging terminal 33 is provided inside this protrusion 32. installed. Specifically, the charging terminal 33 is made of a leaf spring, and when the vacuum cleaner main body 22 is placed on the charging stand 21, the charging terminal 33 is made of a leaf spring, and when the vacuum cleaner main body 22 is placed on the charging stand 21, the roller 3 on the rear side of the vacuum cleaner main body 22
The upper end of the arcuate portion 35 is normally connected to the protruding portion 32 by the elasticity of the leaf spring.
It protrudes upward from a hole 36 formed in the roller 34, and is configured to be displaced downward from this state on a line directed perpendicularly from the center of the roller 34.

By the way, the vacuum cleaner main body 22 is shown in FIGS.
As shown in the figure, a dust suction chamber 38 for storing a filter body 37 made of a paper bag or the like is provided on the front side, and a fan motor 39 and a storage battery 40 are housed side by side on the rear side. The fan motor 39 is supported at the front and rear by support walls 43 and 44 via vibration isolating rubbers 41 and 42, and the front surface communicates with the dust suction chamber 38 in an airtight manner. The storage battery 40 is connected to the vacuum cleaner main body 2
It is stored in a storage chamber 45 formed inside 2. The storage chamber 45 has an open upper end and is closed by a lid 46 that can be freely engaged with and detached from the cleaner body 22, and is provided with a wall surface 47 and a holding rib 48 for holding the storage battery 40 therein. .
Also, in this storage chamber 45, a terminal 49 of the storage battery 40 is provided.
A contact spring 50 is provided in pressure contact with the contact spring 5.
0 is connected to the fan motor 39 by a lead wire (not shown). At the front end of the vacuum cleaner body 22 is a front cover 5 that opens and closes the dust suction chamber 38 and has an intake hole 52 and an intake hole gasket 53.
4 is pivoted. Reference numeral 55 denotes a handle provided at the upper end of the front cover 54 so as to project forward. An exhaust hole 57 is formed at the rear end of the vacuum cleaner body 22 and is covered from inside with an exhaust hole packing 56 made of urethane foam or the like, and a rest portion 58 is formed at the upper portion of the outer surface. Further, the lower end of the rear end of the vacuum cleaner main body 22 is connected to the charging stand 21 as shown in FIG.
In the state in which the roller 34 is placed, the area below the intersection P of the line extending vertically from the center O of the roller 34 and the rear surface of the vacuum cleaner main body 22 is shaped like an arc with a radius R concentric with the center of the roller 34, and the intersection point An opening 59 is formed in the arc-shaped portion including P, and a terminal 60 for receiving charging is fitted into the opening 59 from the inside. Note that 61 is a caster roller provided at the center of the lower end of the front end of the cleaner body 22.

To explain the operation in the above configuration, when charging the storage battery 40 inside the vacuum cleaner main body 22, the vacuum cleaner main body 22 is placed on the charging stand 21 by holding the handle 55.
2 is tilted so that the roller 34 is on the lower side as shown in FIG. 6 due to the gravity acting on the center of gravity. Therefore, the roller 34 is inserted into the roller fitting recesses 24 and 2.
4, by rotating the cleaner body 22 around the center of the roller 34 until the rest part 58 comes into contact with the receiving surface 23.
The terminal 60 and the arc portion 35 of the charging terminal 33 are in sliding contact, and a wiping action occurs. Conversely, when the vacuum cleaner main body 22 is lowered from the charging stand 21, the vacuum cleaner main body 22 rotates in the opposite direction to the above-mentioned case where the vacuum cleaner main body 22 is lowered from the charging stand 21.
5, a wiping action can be obtained.
Furthermore, the sliding resistance between the terminal 60 and the circular arc portion 35 when the vacuum cleaner main body 22 is attached to and detached from the charging stand 21 is determined by rotating the vacuum cleaner main body 22 around the center of the roller 34, the radius R, and the handle. 5
The contact pressure between the terminal 60 and the arcuate portion 35 is reduced by the ratio of the distance between the terminal 60 and the center of the roller 34, and causes almost no problem in use.
2 and the charging stand 21, the operating force can be reduced.

Effects of the invention As described above, according to the invention, when the vacuum cleaner is attached to and removed from the charging stand, a wiping effect can be obtained by sliding between the terminals, and the operation force when attaching and detaching the vacuum cleaner is light, resulting in excellent usability. A charging stand can be provided.

[Brief explanation of the drawing]

Figures 1 to 6 show one embodiment of the present invention, in which Figure 1 is a longitudinal sectional view showing the relationship between the charging stand and the vacuum cleaner, Figure 2 is a perspective view of the charging stand, and Figure 3 is a perspective view of the charging stand. The figure is a vertical side view of the vacuum cleaner, Figure 4 is a plan view of the same, and Figure 5 is a vertical side view of the vacuum cleaner.
FIG. 6 is a side view showing how the vacuum cleaner is placed on the charging stand, and FIGS. 7 and 8 are cutaway side views of main parts showing different conventional examples. 21... Charging stand, 22... Vacuum cleaner body, 23...
...Receiving surface, 24...Roller fitting recess, 27...Transformer, 28...Charging control circuit board, 32...Protrusion, 33...Charging terminal, 34...Roller, 35
...Arc part, 36...Hole, 38...Dust suction chamber, 39
... Fan motor, 40 ... Storage battery, 54 ... Front cover, 55 ... Handle, 58 ... Rest part, 59 ... Opening, 60 ... Terminal.

Claims (1)

[Scope of utility model registration request] A floor movable vacuum cleaner with a built-in storage battery and a running roller disposed at the lower end of the rear part of which partially protrudes rearward is received in an upright state with the rear surface facing the lower end. a recess into which the recess is to be fitted, and an inclined surface that slopes downward from the front end of the recess;
Roller receivers are provided on both sides of the recess and on which the rollers of the vacuum cleaner are placed, and the roller receivers include a flat surface connected to the inclined surface and a circle connected to the rear of the flat surface and in contact with the circumferential surface of the roller. a charging terminal having an arc-shaped stop surface and a circular arc portion projecting upward from the hole formed between the roller receiving portions; A floor moving device arranged so that the center is located on a line pointing vertically from the center of the roller of the vacuum cleaner, and configured so that a charging terminal provided on the rear surface of the vacuum cleaner can come into contact with the charging terminal. Charging stand for vacuum cleaner.