JP3116484U - Long linear body for rotary rotor of suction nozzle of vacuum cleaner - Google Patents

Abstract

To provide a rotary rotor of a suction nozzle of a vacuum cleaner with high dimensional accuracy, low production economy and efficiency, and low cost.
A metal wire 1 and a synthetic resin layer 2 provided around the metal wire, wherein a plurality of grooves are spirally provided at a predetermined pitch in the synthetic resin layer. Yes.
[Selection] Figure 1

Description

  The present invention relates to a long linear body for a rotary rotor of a suction nozzle of a vacuum cleaner.

  Patent Document 1 discloses a method of manufacturing a metal straight strip rotor having an opening on the outer periphery and provided with straight or multiple straight blade mounting grooves in the longitudinal direction.

  The rotor disclosed in Patent Document 1 is twisted, and the groove provided on the outer periphery of the rotor is formed in a spiral shape having a required twist.

  The rotor disclosed in Patent Document 1 is attached to a blade and parts necessary for rotation to form a rotary rotor. Bearings manufactured separately are attached to both side ends of this, accommodated in a nozzle, and driven and rotated by a driving device via a belt.

  The rotary rotor of the floor nozzle for a vacuum cleaner according to Patent Document 2 has a configuration in which a blade is spirally attached to the outer peripheral surface of a metal rotor, and is provided on the outer peripheral surface of the rotor in parallel with its axis. After the blade is fitted in the groove, the rotor is twisted around its axis, so that both blade edge portions of the groove having a narrow opening width firmly hold the blade.

  In addition, the rotary rotor of the suction nozzle for a vacuum cleaner according to Patent Document 3 has a configuration in which a blade is spirally attached to the outer peripheral surface of a metal rotor, and the rotor has a groove for attaching the blade in its longitudinal direction. After extrusion molding in a state of being provided straight in the direction, the groove is bent in a spiral shape by twisting around its axis.

  Furthermore, the rotary rotor of the suction nozzle for a vacuum cleaner according to Patent Document 4 passes the rotary rotor material extruded from the extrusion molding device through a through-hole drilled in a disk provided rotatably on the holding plate. The groove is bent spirally by performing a twisting process so as to be a spiral having a predetermined twist angle by rotating the disk simultaneously with the extrusion molding.

JP-A-7-178016 Japanese Patent No. 3127180 Japanese Patent No. 3127182 JP 2003-135327 A

  The rotary rotor made of aluminum used in the suction port of the vacuum cleaner disclosed in Patent Documents 1, 2, 3, and 4 extrudes aluminum as a pipe having a desired shape by an extruder, and then extruded. It is obtained by manually cutting an aluminum pipe to a predetermined dimension and twisting the aluminum pipe cut to a predetermined dimension. Therefore, since there are many processes that rely on human hands, the dimensional accuracy of aluminum pipes is not accurate, and it is difficult to grasp the stability of quality such as vibration, so there are problems of low economics and efficiency of production and high cost. .

  An object of the present invention is to provide a rotary rotor for a suction nozzle of a vacuum cleaner that eliminates the conventional problems described above, has high dimensional accuracy, is low in production economy and efficiency, and is low in cost.

The long linear body for the rotary rotor of the present invention comprises a metal wire and a synthetic resin layer provided around the metal wire,
The synthetic resin layer is characterized in that a plurality of grooves are spirally provided at a predetermined pitch.

  The predetermined pitch is preferably 0.5 to 1.5.

  In addition, the cross-sectional shape of the metal wire may be a polygon.

  Further, the cross-sectional shape of the metal wire may be substantially circular.

  The metal wire may have a substantially oval cross section.

  Further, the cross-sectional shape of the metal wire may be a combination of a polygon and a circle.

  Moreover, it is preferable that the said long linear body is a rotation rotor of the suction nozzle of a cleaner.

  According to the present invention, there is provided a long linear body for a rotary rotor (hereinafter referred to as a rotary rotor) of a suction nozzle of a vacuum cleaner having high dimensional accuracy, low production cost and efficiency, and low cost. Can do.

  Referring to the accompanying drawings, FIG. 1 (a) is an explanatory plan view showing an example of a long linear body of the present invention, (b) is a cross-sectional explanatory view, and FIG. 2 shows a method of manufacturing a rotary rotor of the present invention. FIG. 3 is an explanatory view showing a shaft of the torsion processing device of FIG. 2, and FIG. 4 transfers a long linear body twisted by the processing device of FIG. FIG. 5 is a schematic explanatory view showing a rotating rotor manufacturing apparatus according to the present invention.

  1 comprises a metal wire 1 and a synthetic resin layer 2 provided around the metal wire, and a plurality of grooves 2a in the synthetic resin layer 2 is 0.5 with respect to the unit length L of the long linear body 10. It is provided with a pitch of ~ 1.5 (i.e., a spiral shape).

  As the cross-sectional shape of the metal wire 1, for example, a polygon such as a triangle, a quadrangle, a pentagon, and a hexagon, a substantially circular shape, a substantially elliptical shape, or a combination of a polygon and a circle can be employed.

  Referring to FIG. 1, the unit length L of the long linear body 10 is 170 mm to 215 mm, and the outer diameter is 10 mm to 35 mm.

  Below, the manufacturing process of the elongate linear body 10 is demonstrated, referring FIGS.

  Step I: First, the metal wire 1 having a diameter of about 1 to 10 mm wound in a coil shape is corrected so as to extend linearly. As the material of the metal wire 1, for example, stainless steel, iron, aluminum, aluminum alloy, or the like can be used.

  Step II: In step I, the metal wire 1 straightened by the wire straightening device F (see FIG. 5) is placed on the axis of a synthetic resin extrusion molding device (die) E (see FIG. 5). Pull in. In addition, the temperature of the extrusion molding apparatus (die) E is set to about 80 to 200 ° C.

  Step III: A synthetic resin material such as polyethylene, polypropylene, ABS resin, polyamide, and polyacetal is fed into the extrusion molding apparatus E from the hopper D (see FIG. 5). In this step, the outer circumference of the metal wire 1 is covered with the synthetic resin layer 2 and one or a plurality of (for example, 4 to 8) grooves 2a are formed in parallel with the axis of the metal wire 1. The base 3 of the linear body 10 is formed.

  Step IV: The base 3 of the long linear body 10 in which a plurality of (4-8) grooves 2a are formed is continuously extruded from an extrusion molding apparatus (mold) E.

  Step V: The base 3 of the long linear body 10 is supplied to the twisting device 4 (see FIG. 2). The twisting device 4 includes an electric motor M, a transmission (not shown), and three columnar shafts 5.

  When the base 3 of the long linear body 10 is supplied to the twisting device 4 (see FIGS. 3A and 3B), the base 3 of the long linear body 10 is the outer peripheral surface of the three shafts 5. The three shafts 5 rotate clockwise (in the direction of arrow C) in a state where they are inscribed. At this time, the rotational speed of the electric motor M is adjusted by the reduction gear so that the rotational speed of the shaft 5 becomes a desired rotational speed (for example, 40 rpm to 380 rpm). Then, as shown in FIG. 3A, a long linear body in which a spiral groove 2b having a desired twist angle θ (for example, 45 degrees, 180 degrees, 270 degrees, 360 degrees) is formed. 3a is formed continuously.

  Step VI: Referring to FIGS. 3 (a) and 3 (b) and FIG. 5, the long linear body 3a obtained in the previous step V is then referred to FIG. 3 (a), (b) and FIG. Then, the four belts b1, b2, b3 and b4 are transferred forward while being sandwiched by the belt conveyor 6 to be driven. The four belts b1, b2, b3 and b4 are made of, for example, natural or synthetic rubber.

  Step VII: The long linear body 3a in which the spiral groove 2b having a desired pitch (or twist angle θ) is formed is cut into a desired length by the cutting machine A (see FIG. 5).

(A) is plane explanatory drawing which shows an example of the elongate linear body of this invention, (b) is sectional explanatory drawing. It is a perspective view which shows the twist processing apparatus used for 1 process of the manufacturing method of the rotary rotor of this invention. It is explanatory drawing which shows the shaft of the twist processing apparatus of FIG. It is explanatory drawing which shows the conveyor for conveying the long linear pair twisted by the processing apparatus of FIG. It is explanatory drawing which shows the apparatus used for the manufacturing method of the rotary rotor of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Metal wire 2 Synthetic resin layer 2a Groove 2b Groove 3 Base | substrate of long linear body 3a Long linear body 4 Twist processing apparatus 5 Shaft 6 Conveyor 10 Long linear body A Cutting machine D Hopper E Extruder F Wire straightening device M Electric motor

Claims (6)

It consists of a metal wire and a synthetic resin layer provided around the metal wire,
A long linear body for a rotary rotor of a suction nozzle of a vacuum cleaner, wherein a plurality of grooves are spirally provided at a predetermined pitch in the synthetic resin layer. The long linear body according to claim 1, wherein the predetermined pitch is 0.5 to 1.5. The long linear body according to claim 1 or 2, wherein a cross-sectional shape of the metal wire is a polygon. The long linear body according to claim 1 or 2, wherein a cross-sectional shape of the metal wire is substantially circular. The long linear body according to claim 1 or 2, wherein a cross-sectional shape of the metal wire is substantially elliptical. The long linear body according to claim 1 or 2, wherein a cross-sectional shape of the metal wire is a combination of a polygon and a circle.

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