JPH0346699Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a floor nozzle for a general household vacuum cleaner.

Conventional technology In the past, as shown in Fig. 4, the floor nozzle body A
The connecting pipe C rotates around the shaft D, and the lip E protruding from the shaft D connects to the rear end of the middle pipe B. It was pressed into place.

By press-fitting the lip E, air tightness is ensured between the rear end of the middle pipe B and the shaft portion D of the connecting pipe C, and its sliding resistance allows the connecting pipe C to rotate smoothly and the shaft. The rattling of part D is suppressed.

Problems to be solved by the invention However, in the case of the conventional configuration, the lip E is
It protrudes upward from the bottom of the pipe (if it protrudes from the top to the bottom, it becomes easier for dirt to get trapped between the lip E and the rear end of the middle pipe B). In this case, when the connecting pipe C was allowed to rest, the lip E protruded into the air passage, increasing air resistance and causing dirt clogging.

Means for Solving the Problems The present invention has a middle pipe that forms an air passage in the floor nozzle body, and a connecting pipe that is rotatably attached to the middle pipe. It has a lip that projects approximately horizontally from the pipe.

Effect: With the above configuration, there is no lip protruding into the air passage from the middle pipe to the connecting pipe, resulting in a smooth air passage, less air resistance, and no dirt clogging.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

In Figures 1 to 3, 1 is a floor nozzle, which includes a bottom plate 2, a middle pipe 3 forming an air passage, and a rotatable connecting pipe 4 connected to the middle pipe 3.
, a roller 5, and a vertically movable brush support plate 7 to which brush bristles 6 are attached.

The vertical position of the brush support plate 7 is determined by the left and right pedals 8,
It can be switched with 9. That is, spring 1
Convex portion 11 of brush support plate 7 urged upward at 0
By pushing with the protrusions 21 of the pedals 8 and 9, the support plate 7 moves downward. The left and right pedals 8 and 9 are in opposite directions, and when one is depressed, the other is in a raised position, and the two are connected by a shaft 12 passing through the middle pipe 3.

A cylindrical shaft portion 14 that covers the support shaft 13 is formed on the shaft portion of the connecting pipe 4, and a lip 15 that protrudes substantially horizontally from the middle pipe 3 is in pressure contact with the upper portion of the shaft portion 14.

Further, in order to form the lip 15, the rear end of the middle pipe 3 is lowered diagonally downward.

The upper end 16 and side surface 17 of the connecting portion of the connecting pipe 4 are in contact with the upper wall 18 and side wall 19 of the connecting portion of the middle pipe 3, and slide while being air tight.

Reference numeral 20 denotes a connector to the extension pipe, which is rotatably connected to the connecting pipe 4.

In the above configuration, the lip 15 is in pressure contact with the shaft portion 14 of the connecting pipe 4 in a substantially horizontal state, and unlike conventional pipes, there is no protrusion of the lip due to rotation of the connecting pipe, there is little air resistance, and there is no dust. Creates a blockage-free air passage. Further, by press-fitting the lip, the shaking of the connecting pipe 4 is suppressed and the rotation of the connecting pipe 4 is made smooth due to its sliding resistance, as in the conventional case.

Effects of the invention The present invention has a middle pipe that forms an air passage provided in the floor nozzle body, and a connecting pipe that is rotatably attached to the middle pipe, and the shaft part of the connecting pipe is formed in a cylindrical shape. Since the upper part is in pressure contact with a lip that protrudes approximately horizontally from the middle pipe, the rattling of the connecting pipe is suppressed by the pressure contact force, and its sliding resistance makes the rotation of the connecting pipe smooth. Furthermore, since the tip of the lip does not protrude into the air passage as in the conventional case, it is possible to provide an air passage that has less air resistance and is free from clogging with dirt.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of one embodiment of the present invention, Fig. 2 is a transverse sectional view of the same, Fig. 3 is a sectional view of the pedal section, and Fig. 4 is a sectional view of the pedal section.
The figure is a sectional view of a conventional example. 1... Floor nozzle body, 3... Middle pipe, 4...
Connection pipe, 14...Shaft, 15...Rip.

Claims (1)

[Scope of utility model registration request] The floor nozzle body has a middle pipe that forms an air passage, and a connection pipe that is rotatably attached to the middle pipe.The shaft of the connection pipe is formed in a cylindrical shape, and the middle A floor nozzle for a vacuum cleaner that has a lip that protrudes approximately horizontally from the pipe and is pressed against it.