JPS6129319A - Electromotive suction port - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an electric suction spout, and in particular to an electric suction suction for carpets that scrapes up fibrous dust such as lint on a carpet with a rotating brush body. .

[□Conventional technology]

The conventional electric suction spout for carpets has a tuck that allows for removal from the wall edge, and an auxiliary rotating brush is placed on the coaxial path of the main rotating brush body, and the end surface of the auxiliary rotating brush and the side wall of the suction body are connected to each other. Although the structure is such that the gap is small and the area that can be removed is as wide as possible, if long fibers such as lint get tangled with the brush, the lint will gather at the center of the end surface of the auxiliary rotating brush as the auxiliary rotating brush rotates. However, there were drawbacks such as thread accumulation between the main body side wall, increased rotational load loss, and decreased lifespan due to oil draining of the bearing due to lower rotational speed and heat generation.[Invention [Problems to be Solved] The present invention provides a plurality of grooves on the outer circumference of the auxiliary rotating brush as a means for fitting and fixing an inclusion made of a substantially conical elastic member to the end of the auxiliary rotating brush. At the same time, protrusions facing the grooves are provided on the inner circumference of the inclusion, and by fitting them into each other, they are held firmly in place to prevent out-of-phase rotation of the auxiliary rotating brush and the inclusion, curling, etc. Therefore, an object of the present invention is to provide a fitting structure that eliminates the gap by inserting an inclusion made of an elastic material between the end face of the auxiliary rotating brush and the side wall face of the main body, thereby reducing the load caused by the intrusion of lint that conventionally occurs in the gap. An electric type for carpets that eliminates problems such as a decrease in rotational speed due to increase in rotation speed, allows the rotating brush and inclusions to rotate without any problems due to sliding, and prevents lint from entering due to inclusions at all times. [Means for solving the problems] Embodiments of the present invention will be described in detail below with reference to the drawings.

First, to describe the overall configuration of FIGS. 1 to 3', the suction body 1 is equipped with an electric motor 5, a main rotating brush body 2, a duct 7, etc., and a suction port 9 and an auxiliary suction port 1 are provided at the lower front part.
1 is open, and a connecting pipe 13 is installed at the rear of the main body, which communicates with the suction port 9 through the duct 7, and is rotatably connected to the main body in the front-rear direction. The connecting pipe 13 is connected to an extension pipe (not shown) that is continuous with the vacuum cleaner body through a flang part (not shown). The main rotating brush body 2 and the auxiliary rotating brush 4 are supported via a bearing 8 by a suction port 9 and an auxiliary suction port 11 at the front of the lower surface of the suction body. At one end of the main rotating brush 2,
A large pulley 15 is formed, and power is transmitted from a small pulley 17 of the electric motor 5 via a belt 19. At the end of the large pulley 15, a long integral brush body shaft 6 that penetrates through the brush body protrudes, and the end is supported by a flat bearing 23 made of oil-impregnated alloy or the like, and this flat bearing 23 is attached to a bearing cover (not shown). It is held in a holding case (not shown) of the mouthpiece main body 1 via. On the other hand, on the opposite side of the main rotating brush body 2, the brush body-shaft 6 similarly protrudes long and is supported by a ball bearing.
A bearing 8 is press-fitted and supported at the end of the main rotating brush body 2, and a bearing cover 10 is fitted onto the outer surface. The brush body shaft 6 has a threaded portion 14 protruding from the end surface of the bearing 8.
The auxiliary rotating brush 4 is tightened and supported by a nut 16.

A substantially conical seal body 20 made of an elastic material such as rubber or soft vinyl chloride is fixed to the outer periphery 18 of the end of the auxiliary rotating brush 4, and a suction body (not shown) facing the auxiliary rotating brush 4 is attached. ) The metal plate 24 is fitted and fixed to the side wall 22 of the metal plate 24 with a nail or the like, and the outer peripheral part 26 of the sealing body 20 is attached to the metal plate 24.
It has a structure that aligns with the surface. The auxiliary rotary brush 4 mounting structure of the seal body 20 according to the present invention includes four protrusions 28 formed on the inner periphery of the seal body 20, and a protrusion (1) 28 on the outer periphery 18 of the end portion of the auxiliary brush 4. Fitting grooves (1) 30 are provided in the same way at four locations, and each protrusion 28 and groove 30 are fitted to each other to prevent damage to furniture during cleaning. A pan 9-32 made of a soft material such as vinyl chloride is wrapped around the mouthpiece body in a belt shape and supported.

〔Example〕

In the embodiment of the present invention, a seal body 20 made of a substantially conical rubber material is provided on the outer periphery 18 of the end portion of the auxiliary rotating brush 4 in each groove 30.
and the protrusion 28 are fitted and fixed, so that the metal plate 24
When the seal body 20 and the seal body 20 are aligned and rotated, the seal body 20 does not fall off or curl up, and the function of the seal body 20 is to prevent lint from clogging the auxiliary rotating brush 4 end. An effective sealing body 20 that does not cause deterioration etc.
Provided, possible.

FIG. 5 shows another embodiment of the present invention.1. The difference from FIG. 1 is that the mounting structure of the auxiliary rotary brush 4 and the seal body 20 is reversed, and the auxiliary rotary brush 4 and the outer circumference 26 of the auxiliary rotary brush 4 are different from each other.
Four projections 34 are provided at the base of the seal body 20, and mounting grooves 36 are provided at four locations at the base 21 of the seal body 20 so as to fit with the projections 34, thereby securing the seal body 20 firmly. The functional effects of this embodiment are similar to those shown in FIG. 1, but the mounting structure of the seal body 2'0 is simple and can be easily mounted. As described above, as a means for attaching a substantially cone-shaped seal body made of an elastic material such as rubber to the end of the auxiliary rotating brush, projections or ring-shaped parts are attached to multiple parts of the inner periphery of the auxiliary rotating brush side of the seal body. The protrusions are provided on the outer circumference of the auxiliary rotating brush, and the grooves are provided all around or in a plurality of grooves on the outer circumference of the auxiliary rotating brush in the same way as described above, and the brushes are fitted and fixed to each other, so that the dust-proofing effect against lint, etc. as a sealing body can always be maintained in the best condition and is stable. It has the effect of absorbing dust from the carpet.

Furthermore, since the seal body is firmly fitted into the groove on the outer circumference of the auxiliary rotating brush by a plurality of protrusions or ring-shaped protrusions, there is no fear of it falling off even during long-term use.

In addition, if multiple protrusions are provided on the outer circumference of the auxiliary rotating brush, and multiple grooves are provided on the auxiliary rotating brush side of the seal body, and the grooves of the seal body are fitted and fixed within the protrusions, the mounting structure of the seal body is simple. This has the effect of making installation easier.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of the present invention, Fig. 2 is a bottom view of the electric suction mouth, Fig. 3 is an explanatory diagram of the electric suction mouth, Fig. 4 is a plan view of the seal body of the present invention, and Fig. 5 is a bottom view of the electric suction mouth. FIG. 7 is a vertical cross-sectional view of another embodiment. 2... Main rotating brush body, 4... Auxiliary rotating brush, 2
0...Seal body, 28...Protrusion, 30...
Groove, 34...Protrusion, 36...Groove. /4 (Agent: Tatsuyuki Unuma: Figure 1 Figure 2

Claims (2)

[Claims] (1) In a carpet cleaner in which a main rotary brush body and an auxiliary rotary brush formed on the same axis are axially disposed in a suction port opening on the lower surface of a substantially box-shaped suction body, the auxiliary rotary brush As a means for attaching a substantially conical seal body made of an elastic material such as rubber at the end thereof, projections or ring-shaped projections are provided on a plurality of parts of the inner periphery of the seal body on the auxiliary rotating brush side, and the outer periphery of the auxiliary rotating brush is provided with protrusions or ring-shaped protrusions. An electric suction spout characterized by having grooves all around the circumference or a plurality of grooves to fit and secure each other in the same way as described above. (2) In claim 1, a plurality of protrusions are provided on the outer circumference of the auxiliary rotating brush, a plurality of grooves are provided on the auxiliary rotating brush side of the seal body, and the grooves of the seal body are fitted and fixed within the protrusions. An electric suction mouth characterized by this.