JPH0245027A - Sucking tool for vacuum cleaner - Google Patents

Abstract

PURPOSE:To smoothly execute an expanding operation and to obtain satisfactory usability by giving the title tool a sucking pipe having a sucking port at its front edge and a protrusion on its rear part external surface and a connecting pipe to connect the sucking pipe under a freely drawing in and out state and providing a band-shaped groove to guide the protrusion under a freely sliding state. CONSTITUTION:In using a sucking tool 1 for a vacuum cleaner, when the sucking tool 1 is to be expanded, and when a front pipe part 6 of a sucking pipe 2 is gripped with a hand and pulled in a pulling out direction, a protrusion 7 of the sucking pipe 2 smoothly slides on a band-shaped groove 11 of the first connecting pipe 8, after that gets over a mountain- shaped protruding part, and is protruded from the first connecting pipe 8 until the protrusion 7 abuts on a front wall. Further, a connecting pipe side protrusion 14 of the first connecting pipe 8 smoothly slides on a connecting pipe side band-shaped groove 18 of the second connecting pipe 15, after that gets over a connecting pipe side mountain-shaped protruding part, and is protruded from the second connecting pipe 15 until the protrusion 14 abuts on a groove wall level difference part. The housing directional sliding of the sucking pipe 2 and the first connecting pipe 8 is obstructed by the engagement of the protrusion 7 with the mountain-shaped protruding part and that of the connecting pipe side protrusion 14 with the connecting pipe side mountain-shaped protruding part, and the protruding state of the sucking pipe 2 and the first connecting pipe 8 can be held.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a vacuum cleaner suction J4 used as an attachment member for a vacuum cleaner.

(b) Prior art As a technology prior to the present invention, for example,
Japanese Patent Application No. 826 discloses a vacuum cleaner suction unit which is extendable and retractable, in which a suction port body and a connecting pipe are connected in a freely fingerable manner.

In this conventional technology, the moderation of expansion and contraction between the suction port body and the connecting pipe is controlled by the sliding of both the suction port body and the connecting pipe]IJrkJ
Since this is done by the combination of recesses and protrusions provided in each of the suction ports, the protrusions always push up the sliding wJ surface when the suction port main body is expanded or contracted with respect to the conventional pipe, making it difficult to slide the suction port main body.

(c) Problems to be Solved by the Invention The object of the present invention is to provide a vacuum cleaner suction pipe 4 which is extendable and has good usability by allowing smooth extension and contraction operations.

2) Means for Solving the 4 Problems In order to solve the above problems, the vacuum cleaner suction device of the present invention has a suction port on the front end and a protrusion on the outside of the rear surface, as shown in Figure 2. It has a suction cylinder and a connecting cylinder connected to the suction mt/outlet/input company, a band-shaped groove is provided in the inward elongated direction of the connection cylinder to guide the protrusion in a finger-cuttable manner, and in the band-shaped groove, It is characterized in that the protrusion has a protruding metal that is mounted on the protrusion to maintain the protruding state of the suction tube from the connection tube.

(E) Effect With the above configuration, when the suction tool for a vacuum cleaner is extended, the protrusion of the suction cylinder smoothly crosses the band-shaped groove of the connecting cylinder. 1 is prevented by engagement between the protrusion and the protrusion, and 1 the suction cylinder is maintained in a protruding state from the connecting cylinder.

On the other hand, when narrowing the suction tool for a vacuum cleaner, when the suction cylinder is strongly pressed in the storage direction, the protrusion passes over the protrusion, and then the band-shaped groove is smoothly slid, and the suction cylinder is inserted into the connecting cylinder. Store it in.

(f) Example The suction tool for a vacuum cleaner according to the present invention will be explained below using the example shown in the drawings.

(1) is a 6-stage extendable vacuum cleaner suction tool.
), (2) is a synthetic resin-made elongated bottomless rectangular suction cylinder with a suction port (31) at the front end, and a large step 14) is formed at the top and bottom of the front part. The rear cylindrical part (5) behind part (4), the entire front cylindrical part (6), is formed to have a narrow upward width, and the left and right outer surfaces (5 &) of the rear end side of the rear cylindrical part (5) 60 are respectively provided. , a protrusion (7) is formed outward, with a vertical wall (7a) at the front and a tapered wall (7b) at the rear.

(8) is a first connecting direction of an elongated bottomless rectangular cylinder made of synthetic resin that stores the rear cylinder part (5a) of the suction cylinder (2) in and out from the front end opening (9); A brim-like stepped portion αG is formed on the upper and lower edges of the opening (9), and a portion of the left and right outer surfaces (8a) is made to protrude outward, thereby increasing the longitudinal force (in the front-rear direction) of the inner surface (813). The protrusion (7)
A band-shaped groove (11) is provided for guiding the tank so as to be freely weighted in the tank, and in this band-shaped groove q1), the above-mentioned and A chevron protrusion su:i having a front tapered surface (13a) and a rear tapered surface (13b) is provided at the rear. At the rear end of the outer surface (8a) constituting the band-shaped groove Uυ, there is a connection having the same shape as the projection (7) formed on the vertical wall (14a) at the front and the tapered wall (14b) at the rear. A cylinder side protrusion (141) is formed facing outward.

(151 is a second connecting tube made of synthetic resin that stores the first connecting tube (8) in and out from the front opening Q6), and has an elongated bottomless rectangular tube shape, and has a vacuum cleaner suction hose at the rear. A connecting cylindrical opening η is formed to be inserted into and connected to the connecting cylinder. By setting a portion of the left and right outer surfaces (15 &) of the second connecting tube O9 outward, the left and right inner surfaces (15 &)
b) A connecting tube side strip 1$4 (1g+) that freely guides the connecting tube side protrusion in the longitudinal force (back and forth direction), and the strip groove connects the front via the groove wall step portion (11). An opening (insertion groove 2 with a shallow groove depth up to the sinus) is provided.

Furthermore, for holding the connecting cylinder side belt-shaped groove between the connecting cylinder side belt-shaped groove (1 mark) and the groove wall step part (19),
Connecting cylinder side strip protrusion sc! having the same shape as the chevron-shaped protrusion (7)!
1J is provided.

During assembly, the suction tube (2) is pressed against the front end opening (9) K of the first connection tube (8) so that the tapered surface (7b) of the protrusion (7) is aligned with the first connection tube (8). is easily inserted into the first connecting tube (8) by pushing out the inner surface (8b) of the second connecting tube a.
By pressing against the front opening (161) of 9, the connecting cylinder side protrusion (141's tapered surface (14b)
Push out the insertion groove 51 and easily insert the second connecting tube 1151.
inserted into.

Therefore, when using the suction tool (1) for a vacuum cleaner and pulling it out, if you hold the front tube part (6) of the suction tube (2) with your hand and pull it in the direction of pulling it out, the protrusion (7) of the suction tube (2) will come out. After sliding smoothly through the belt-shaped groove aυ of the first connecting tube (8), it passes over the chevron protrusion sO and is projected from the first connecting tube (8) until it abuts on the front wall U, and then the first connecting tube (8) The connecting cylinder side protrusion u4 of the connecting cylinder side band groove of the 9152 connecting cylinder (2)
181 smoothly slides over the connection part side chevron-shaped protrusion Qv, and is projected from the second connection cylinder 4 until it abuts the groove wall step part a9, and then the suction cylinder (2) and the first connection cylinder ( 8
) is prevented from sliding in the storage direction by the engagement of the protruding ear 1 and the chevron-shaped protrusion (13) and the engagement of the connecting cylinder side protrusion I and the connecting cylinder side chevron-shaped protrusion, and the suction cylinder (2) is prevented from sliding in the storage direction. ) and g!Ji connection tube (8) are maintained in their protruding state.

On the other hand, when retracting suction tool (1) for #5 storage, etc., when the suction tube (2) is strongly pressed in the storage direction, the protrusion (7) passes over the chevron-shaped protrusion f13) and then the band-shaped groove αυ is slid smoothly, and the suction cylinder (step part 14 of 21) is housed in the first connecting cylinder (8) until it comes into contact with the front end opening + 9) edge of the %1 connecting cylinder (8), and then the first connecting cylinder (8)
After the connecting cylinder side protrusion (1G) crosses the connecting cylinder side chevron-shaped protrusion @, the connecting cylinder (8) smoothly slides through the connecting cylinder side band-shaped groove a8, and the brim-shaped step part (1G) It is housed in the second connecting cylinder until it comes into contact with the edge of the front entrance αe of the second connecting cylinder, and the vacuum cleaner suction (1) becomes compact in a contracted state.

When these vacuum cleaner suction tools (1) are extended and retracted, the protrusion +71#i and the band-shaped groove (11J) are not pushed up, and the connecting cylinder side protrusion - is not pushed up, respectively, so the sliding Smooth movement and suction cylinder (2),
There is no need to deform the first connecting tube (8) and the second connecting tube 4.

Incidentally, by providing a plurality of the chevron protrusions SA3 in the band-shaped groove (181), and by providing a plurality of the connecting cylinder side gable protrusions (sha) in the connecting cylinder side band-shaped groove (181), the suction cylinder (
2) the protruding length from the first connecting tube (8) and the protruding length of the first connecting tube (8) from the second connecting tube turn can be adjusted in multiple stages.

(G) Effects of the Invention Since the suction unit for a vacuum cleaner of the present invention is constructed as described above, the protrusion of the suction cylinder smoothly slides within the band-shaped groove of the connecting cylinder during expansion and contraction operations, and the suction unit of the vacuum cleaner according to the present invention is arranged in the band-shaped groove. The protruding window from the connecting cylinder of the suction cylinder is held by the engagement of the protrusion and the 11th protrusion,
Therefore, the expansion and contraction operations can be performed smoothly and easily, and a product with good usability can be obtained. Further, according to the present invention, since the connecting tube does not deform during expansion and contraction operations, the connecting tube can be multi-staged, and therefore, the connecting tube can be made more compact in a narrowed state.

[Brief explanation of the drawing]

The drawings all relate to an embodiment of the suction tool for a vacuum cleaner according to the present invention, in which Fig. 1 is an exploded perspective view, Fig. 2 is a view in a contracted state, (a) is a half-section curved view, and (b) is a half-section. The plan view and FIG. 6 are enlarged sectional views of main parts in an extended state. (1)...Suction tool for vacuum cleaner, (2)...Suction tube, (
3)...Suction port, (7)...Protrusion, (8)...First connection tube, Uυ...Band-shaped groove, (to)...Chevron-shaped protrusion.

Claims (1)

[Claims] (1) It has a suction tube with a suction port at the front end and a protrusion on the rear outer surface, and a connection tube that connects the suction tube so that it can be taken in and out, and the protrusion is slid in the longitudinal direction of the inner surface of the connection tube. A suction tool for a vacuum cleaner, comprising a belt-shaped groove for freely guiding the belt-shaped groove, and a protrusion in the belt-shaped groove for the protrusion to ride over and maintain the protruding state of the suction cylinder from the connecting cylinder.