KR20040002069A - Joint Structure of Revolving Type of Handle in Vacuum Cleaner - Google Patents

Abstract

PURPOSE: A rotary handle connection structure for a vacuum cleaner is provided to prevent a suction hose from being twisted by rotatably connecting a handle to an extension tube. CONSTITUTION: In a vacuum cleaner, a handle(3) is rotatably connected to the end of an extension tube(4). A plurality of through holes(303) are formed at the outer circumference of the end part of the handle. A guide groove(41) is formed at the outer circumference of the end part of the extension tube. A connection member(60) includes a plurality of coupling protrusions(62), and is coupled to the handle. And, the coupling protrusions are inserted into the guide groove through the through holes.

Description

Joint Structure of Revolving Type of Handle in Vacuum Cleaner}

The present invention relates to a rotary handle connection structure of a vacuum cleaner, and in particular, by connecting the handle of the vacuum cleaner to the freely rotatable extension tube to prevent the twist of the suction hose to facilitate the cleaning of the rotary handle connection of the vacuum cleaner It's about structure.

In general, the vacuum cleaner is a household appliance that generates a strong suction force in the cleaner body to force the suction of the ground dust through the suction nozzle body to be cleaned, as shown in Figure 1, the fan motor assembly (inside) ( A cleaner body 1 which generates a strong suction force by the operation of the cleaner, a flexible suction hose 2 connected to the front of the cleaner body 1, and a handle 3 formed at the end of the suction hose 2. And an extension tube 4 having one end connected to the handle 3 and a suction nozzle body 5 which is detachably connected to the other end of the extension tube 4 and moves along the bottom and sucks outside air and dust. It is composed.

The handle 3 is electrically connected to a driving circuit unit for driving the fan motor assembly in the cleaner body 1 through a wire (not shown) installed along the suction hose 2 to directly control the power of the fan motor assembly. In addition, the handle (3) is configured to be able to rotate 360 ° with respect to the suction hose (2) to prevent the twist of the suction hose (2), for the configuration of the handle (3) A more detailed description is as follows.

As shown in FIG. 2, the handle 3 includes a tubular body 31 in which an air flow path is formed, a grip portion 32 extending upward from an intermediate portion of the body 31, and gripped by a user by hand. The control circuit part 33 installed in the grip part 32, the control knob 34 sliding along the control circuit part 33 by a user's operation and controlling the power, and fixed to the end of the suction hose (2) A plurality of terminals 35a are formed along an outer circumferential surface thereof, the contactor 35 being freely rotatable at 360 ° to the end of the body 31, and coupled to an upper end of the end of the body 31. A connecting portion 36 to which a plurality of terminal pins 36a connected to the terminal 35a of the 35 are fixed, and an electric wire for electrically connecting the terminal pin 36a of the connecting portion 36 to the control circuit portion 33. (37) and inserted into the rear of the contactor (35) of the suction hose (2) and fixed to the end of the body (31) It consists of a closed ring 38 to be coupled.

Accordingly, the handle 3 may rotate relative to the connector 35 coupled to the end of the suction hose 2 by 360 °, and the terminal pin 36a of the connector 36 may rotate when the body 31 is rotated. ) Is constantly connected to the terminal 35a of the connector 35, so that the transmission of the power control signal of the control circuit unit 33 is always possible.

However, in order to make the handle 3 rotatable 360 ° with respect to the suction hose 2 while the electrical connection is maintained as described above, the connector 35, the terminal 35a, and the connecting portion 36 as described above. ), Various components such as the terminal pin 36a should be properly configured, and the connection part between the handle and the suction hose has a complicated structure, thus making it difficult to assemble and increase the manufacturing cost.

Accordingly, the present invention has been made to solve the above problems, the connection of the handle and the suction hose of the vacuum cleaner is fixed and the handle is connected to be relatively rotatable relative to the extension tube to prevent the twist of the suction hose during cleaning The purpose of the present invention is to provide a rotary handle connection structure of a vacuum cleaner that can be easily manufactured and made easy to clean.

1 is a side view showing the configuration of a conventional vacuum cleaner

2 is a cross-sectional view showing a main part of the connection structure of the handle and the suction hose of the vacuum cleaner of FIG.

Figure 3 is a side view of the vacuum cleaner with a rotary handle connection structure according to the present invention

Figure 4 is a sectional view showing the main part of the rotary handle connection structure of the vacuum cleaner of FIG.

5 is a perspective view showing the shape of the connection member of the rotary handle connection structure of FIG.

Explanation of symbols on the main parts of the drawings

3: handle 3a: cone part

4: extension tube 41: guide groove

60: connecting member 61: body

62: coupling protrusion 301: support protrusion

302: receiving groove 303: through hole

In order to achieve the above object, the present invention provides a flexible suction hose connected to the cleaner body, a handle connected to the end of the suction hose, an extension tube connected to the end of the handle, and detachably connected to the other end of the extension tube. In the vacuum cleaner comprising a suction nozzle body that moves along the floor and sucks the outside air and dust, the handle provides a rotary handle connection structure of the vacuum cleaner, characterized in that the handle is connected relative to the end of the extension tube. .

According to one aspect of the invention, a plurality of through holes are formed along the circumferential direction at the handle end portion connected to the extension tube, and the circumferential direction at a position corresponding to the through hole at the end portion of the extension tube inserted into the handle end portion. The guide groove is formed integrally with each other, the connecting member consisting of a ring-shaped body having one side open and a plurality of coupling protrusions formed along the inner circumferential surface of the body is coupled at the outside of the handle, and each coupling protrusion of the connection member It is configured to be inserted into the guide groove through the through holes.

Further, according to another aspect of the present invention, a plurality of through holes are formed along the circumferential direction at the end of the extension tube connected to the handle, the circumference at a position corresponding to the through hole at the handle end inserted into the end of the extension tube A guide groove is integrally formed along the direction, and a connecting member formed of a ring-shaped body in which one piece is opened and a plurality of coupling protrusions formed along the inner circumferential surface of the body is coupled to the outside of the extension pipe, and each coupling of the connecting members is performed. The projection is configured to be inserted into the guide groove through the through hole is coupled.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the rotary handle connection structure of the vacuum cleaner according to the present invention.

3 to 5 are views illustrating a rotary handle connection structure of the vacuum cleaner according to the present invention. As shown in FIG. 3, the vacuum cleaner has a strong suction force by an operation of a fan motor assembly (not shown) installed therein. A cleaner body 1 to be generated, a flexible suction hose 2 connected to the front of the cleaner body 1, a handle 3 fixedly connected to the end of the suction hose 2, and one end of the handle ( It consists of an extension tube 4 connected to 3) and a suction nozzle body 5 detachably connected to the other end of the extension tube 4 and moving along the floor and sucking outside air and dust.

The handle 3 is a control unit 3a electrically connected to a driving circuit unit (not shown) of the fan motor assembly installed on the cleaner body 1 via a wire (not shown) installed along the inner surface of the suction hose 2. Is provided, the user is configured to perform the power control of the fan motor assembly (not shown) directly from the handle 3 by operating the control unit (3a).

In addition, the handle 3 is connected to the end of the extension tube 4 so as to be free to rotate 360 ° bar, as shown in Figure 4 and 5, the end of the handle (3) connected to the extension tube (4) Two support protrusions 301 are formed at predetermined intervals on the outer circumferential surface of the portion at predetermined intervals so that the receiving grooves 302 are formed between the supporting protrusions 301, and a plurality of the supporting protrusions 301 are formed along the middle portion of the receiving grooves 302. Four through holes 303 are formed.

In addition, the guide groove 41 is integrally formed along the circumferential direction at a position corresponding to the through hole 303 at the end of the extension tube 4 connected to the end of the handle 3. An end portion of the extension tube 4 having the 41 formed therein is smaller in diameter so that the end portion of the extension tube 4 can be inserted into the end portion of the handle 3, and a stepped portion 42 is formed at the portion having the smaller diameter. Here, the stepped portion 42 of the extension tube 4 is in contact with the end edge of the handle 3 when inserting the extension tube 4 into the handle 3 and the position of the extension tube 4 relative to the handle 3. The guide groove 41 is aligned with the through hole 303 of the handle 3 when the step 42 of the extension pipe 4 stops touching the end edge of the handle 3. .

And, on the receiving groove 302 on the outer side of the handle 3, the connecting member 60 made of a synthetic resin material for coupling the extension tube 4 to the handle 3 so as to rotate relative, bar connection The member 60 is composed of a ring-shaped body 61 of which one side is opened, and a plurality of coupling protrusions 62 protruding along the inner circumferential surface of the body 61, wherein the coupling protrusion 62 is It has a shape and size corresponding to the through hole 303 of the handle 3, when the connecting member 60 is coupled to the receiving groove 302 on the outside of the handle 3, the connecting member 60 Each engaging protrusion 62 of the handle 3 is inserted into the guide groove 41 through each through hole 303 is coupled.

Therefore, the extension pipe 4 is limited in the movement in the axial direction by the engaging projection 62 of the connecting member 60 and the handle 3 by the guide of the engaging projection 62 coupled to the guide groove 41 (3). Relative rotation in the circumferential direction.

The handle 3 and the extension tube 4 configured as described above are assembled as follows.

When the end of the extension tube 4 is pushed into the end of the handle 3, the extension tube 4 stops while its step 42 touches the edge of the end of the handle 3, and at this time, the through hole of the handle 3 303 and the guide groove 41 of the extension pipe 4 are in an aligned state.

In this state, when the open portion of the connecting member 60 is pushed in accordance with the position of the through hole 303 of the handle 3, the connecting member 60 is elastically expanded while being inserted into the outer peripheral surface of the handle 3 and then again the elastic force. It contracts by. Subsequently, by slightly rotating the connecting member 60 with respect to the outer circumferential surface of the handle 3 so that each engaging protrusion 62 of the connecting member 60 is inserted into the through hole 303 of the handle 3, the engaging protrusion 62. End portion of the insertion hole is inserted into the guide groove 41 is aligned with the through hole 303, the coupling between the handle 3 and the extension tube 4 is made.

On the other hand, in the above-described embodiment has been described as a structure in which the extension pipe 4 is inserted into the handle 3 is connected, alternatively, the handle 3 may be inserted into the extension pipe 4 to be connected, in this case through holes 303 and the formation of the guide groove 41 is opposite to the above-described embodiment, the connecting member 60 is also configured to be coupled to the outside of the extension pipe (4).

As described above, according to the present invention, the connection portion between the suction hose and the handle is fixedly connected, and the connection portion between the handle and the extension pipe is configured to allow relative rotation, and thus it is not necessary to consider maintaining the electrical connection state at the connection portion. Accordingly, the handle can be rotated with a simple structure, thereby preventing the suction hose from being twisted and reducing the cleaner manufacturing cost.

Claims (3)

A flexible suction hose connected to the cleaner body, a handle connected to the end of the suction hose, an extension tube connected to the end of the handle, and detachably connected to the other end of the extension tube and move along the floor to suck in external air and dust. In the vacuum cleaner comprising a suction nozzle body to The handle is connected to the rotary handle of the vacuum cleaner, characterized in that connected relative to the end of the extension tube rotatably. According to claim 1, A plurality of through-holes are formed along the circumferential direction at the handle end connected to the extension tube, the guide along the circumferential direction at a position corresponding to the through-hole at the end of the extension tube inserted into the handle end A groove is integrally formed, and a connecting member formed of a ring-shaped body having one side open and a plurality of coupling protrusions formed along an inner circumferential surface of the body is coupled to the outside of the handle, so that each coupling protrusion of the connecting member Rotary handle connection structure of the vacuum cleaner, characterized in that coupled to the guide groove through the through hole. The guide groove of claim 1, wherein a plurality of through holes are formed along the circumferential direction at the end of the extension tube connected to the handle, and the guide groove is located along the circumferential direction at a position corresponding to the through hole at the end of the handle inserted into the end of the extension tube. It is formed integrally, the connecting member consisting of a ring-shaped body of which one side is opened and a plurality of coupling projections formed along the inner circumferential surface of the body is coupled from the outside of the extension tube, each coupling projection of the connection member is the through hole Rotating handle connecting structure of the vacuum cleaner, characterized in that coupled to the guide groove through.