JP2012045178A - Vacuum cleaner and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a vacuum cleaner which can reduce in number of manufacturing steps while preventing deterioration in vibration-proof performance and airtight performance.SOLUTION: The method for manufacturing a vacuum cleaner 1 in which an electric fan 6 covered with a fan case 9 having an inlet port 9a provided in an end face 9d, is arranged in a body 2, includes: a housing 16 formed into a cup shape with an opening face and having a hole part 16a opposite to the opening face, a cushion body 18 having an annular part 18a and a plurality of projection parts 18b projecting radially from the annular part 18a. The method includes the steps of: holding the electric fan 6 in the housing 16 by elasticity of the projection parts 18b bent toward the annular part 18a held the peripheral surface of the fan case 9 and the peripheral wall of the housing 16 after inserting the end face 9d of the fan case 9 interleaved with the annular part 18a into the opening face of the housing 16 the end face 9d of the fan case 9 is inserted into the opening face of the housing 16; and mounting the housing holding the electric fan 6 in the body 2.

Description

  The present invention relates to a vacuum cleaner including an electric blower in a main body and a method for manufacturing the same.

  A conventional vacuum cleaner is disclosed in Patent Document 1. This vacuum cleaner is provided with a dust collecting part for collecting dust at the front part of the main body part, and an electric blower is arranged behind the dust collecting part. The electric blower is configured by covering a fan and a motor with a fan case. An air intake opening facing the dust collecting portion is opened on the front surface of the fan case, and an air exhaust opening is opened on the peripheral surface.

  By driving the electric blower, a negative pressure is generated in the dust collecting portion, and an air flow including dust flows into the dust collecting portion. Dust is collected at the dust collecting section, and the airflow from which the dust has been removed flows into the fan case from the air intake and is exhausted from the exhaust.

  A shock absorber such as synthetic rubber or foamed resin is bonded to the front of the fan case. The shock absorber has an annular portion that is bonded to the periphery of the air inlet and a belt-shaped portion that is bonded to the peripheral surface of the fan case. The belt-like portion is fitted into an annular support piece provided in the main body, and the electric blower is held by buffering. Thereby, the shock absorber improves the vibration absorption of the electric blower and the airtightness of the air flow path.

JP-A-8-154876 (2nd page-3rd page, Fig. 1)

  According to the conventional vacuum cleaner, the electric blower is attached to the main body after the buffer body is bonded to the fan case of the electric blower. However, since the position cannot be corrected when the bonding position of the buffer body is deviated, it is necessary to carefully perform the bonding work, and there is a problem that the number of manufacturing steps of the vacuum cleaner increases. In addition, there is a problem that the shock-absorbing performance and airtightness of the shock-absorbing body deteriorate due to the shock-absorbing material being altered by the adhesive.

  An object of this invention is to provide the vacuum cleaner which can reduce a manufacturing process, and can prevent the fall of a vibration proof performance and an airtight performance, and its manufacturing method.

In order to achieve the above object, the present invention provides a method for manufacturing an electric vacuum cleaner in which an electric blower covered with a fan case having an air inlet opening at one end surface is disposed in a main body provided with a dust collecting portion for collecting dust. And a buffer having a housing formed with a cup having an opening on one side and having a hole on the opposite surface of the opening, and an annular annular portion and a plurality of projecting portions projecting radially from the annular portion. With body,
The end surface of the fan case is pushed into the opening surface of the housing with the annular portion interposed therebetween, and is bent with respect to the annular portion between the peripheral surface of the fan case and the peripheral wall of the housing. Holding the electric blower in the housing by the elasticity of the protruding portion;
Attaching the housing holding the electric blower to the main body,
It is characterized by providing.

  According to this configuration, the electric blower is covered with the fan case, and the end surface of the fan case that opens the intake port is pushed into the opening surface of the cup-shaped housing with the annular portion of the shock absorber interposed therebetween. Thereby, the protrusion part of a buffer body is bent and it pinches | interposes between the surrounding surface of a fan case and the surrounding wall of a housing, and an electric blower is hold | maintained at a housing. And the housing holding the electric blower is attached to the main body. By driving the electric blower, a negative pressure is generated in the dust collecting portion, and an air flow including dust flows into the dust collecting portion. Dust is collected at the dust collecting portion, and the airflow from which the dust has been removed flows into the fan case through the hole and the air inlet and is exhausted.

  According to the present invention, in the method of manufacturing a vacuum cleaner having the above-described configuration, the fan case includes a protrusion that protrudes around the air inlet, and the annular portion is fitted into the protrusion so that the fan case is It is characterized by being pushed into the housing.

  Moreover, the present invention is characterized in that, in the method of manufacturing a vacuum cleaner having the above-described configuration, the protruding portions are provided at three or more locations and arranged at equal intervals in the circumferential direction.

  Moreover, the present invention is characterized in that, in the method of manufacturing a vacuum cleaner having the above-described configuration, the total area of the protrusions is larger than the total area of the spaces between the protrusions.

In addition, the present invention provides a vacuum cleaner in which an electric blower covered with a fan case having an air inlet opening at one end face is disposed in a main body provided with a dust collecting part for collecting dust, and has a hole on the bottom surface. A housing formed in a cup shape and attached to the main body, and a shock absorber having an annular annular portion and a plurality of projecting portions projecting radially from the annular portion;
The end surface of the fan case is pushed into the housing with the annular portion interposed therebetween, and the protruding portion is sandwiched between the peripheral surface of the fan case and the peripheral wall of the housing and bent with respect to the annular portion. The electric blower is held in the housing by elasticity.

  According to the present invention, the end surface of the fan case is pushed into the cup-shaped housing with the annular portion of the shock absorber interposed therebetween, and is bent between the peripheral surface of the fan case and the peripheral wall of the housing. The electric blower is held in the housing by the elasticity of the protrusion. And the housing holding the electric blower is attached to the main body. Thereby, since position correction can be performed even if the mounting position of the shock absorber is deviated, the housing and the shock absorber can be easily mounted on the electric blower. Therefore, it is possible to reduce the number of manufacturing steps of the vacuum cleaner. Further, since the buffer is not bonded as in the conventional example, it is possible to prevent the vibration-proof performance and the airtight performance from being deteriorated due to the buffer being altered by the adhesive.

The perspective view which shows the vacuum cleaner of embodiment of this invention Side surface sectional drawing which shows the main-body part of the vacuum cleaner of embodiment of this invention Schematic side sectional view showing an electric blower of a vacuum cleaner according to an embodiment of the present invention The top view which shows the buffer body of the vacuum cleaner of embodiment of this invention

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a vacuum cleaner according to an embodiment. The vacuum cleaner 1 includes a main body 2 that houses an electric blower 6 (see FIG. 2). A power cord 8 that can be pulled out and stored is provided on the back surface of the main body 2. The power cord 8 has a power plug 9 at its tip, and is supplied to the main unit 2 by being inserted into a commercial power outlet.

  A flexible connection hose 3 is connected to the front surface of the main body 2, and an extension pipe 4 is connected to the tip of the connection hose 3. A suction port body 5 having a suction port (not shown) facing the floor surface is provided at the tip of the extension pipe 4. The extension pipe 4 is provided with a pipe gripping portion 13 and an operation portion 14. The user operates the operation unit 14 to perform the cleaning operation, grips the pipe gripping part 13, and moves the suction port body 5.

  FIG. 2 shows a side sectional view of the main body 2. The main body 2 is covered with a main body cover 10. A connection port 10a for connecting the connection hose 3 (see FIG. 1) is opened on the front surface of the main body cover 10, and an exhaust port 10b is opened on the back surface.

  A dust collection unit 20 that collects dust is disposed in front of the main body unit 20. The dust collection unit 20 includes a dust collection container 22 and a filter 37, and is formed so as to be detachable from the main body cover 10 by gripping the grip unit 41. An inflow port 22 a communicating with the connection port 10 a is provided on the peripheral surface of the dust collection container 22. The inflow port 22a allows an air flow to flow into the dust collecting container 22 so as to form a swirling air flow. An exhaust passage 42 that opens a dust collector exhaust port 42 a is provided on the back surface of the dust collector 20.

  An electric blower 6 is disposed at the rear of the main body 2. FIG. 3 is a schematic side sectional view of the electric blower 6. The electric blower 6 has an impeller 8 connected to a motor shaft 7 a of a motor 7 and is covered with a fan case 9. The upper part of the fan case 9 that houses the impeller 8 is formed larger in the radial direction than the lower part that houses the motor 7. An intake port 9a is opened in the axial end surface 9d of the fan case 9, and an exhaust port 9b is opened in the lower peripheral surface 9e. An annular protrusion 9c is provided around the air inlet 9a.

  In FIG. 2 described above, a cup-shaped housing 16 having an opening surface disposed downward is fitted on the upper portion of the electric blower 6 via a buffer 18. The housing 16 is provided with a hole 16a on the opposite surface (upper surface) of the opening surface. An engaging portion 16 b that engages with a rib 10 d provided on the inner surface of the main body cover 10 is formed at the front portion of the housing 16. A screw portion 16 c that is screwed to the main body cover 10 is formed at the rear portion of the housing 16. A duct 15 that connects the hole 16a and the dust collecting portion exhaust port 42a is provided in the main body 2.

  A housing 17 covering the lower side of the electric blower 6 is engaged with the housing 16. The housing 17 supports the lower end of the electric blower 6, and an engaging portion 17 a provided at the front portion is engaged with the inner surface of the main body cover 10.

  FIG. 4 shows a plan view of the buffer body 18. The buffer 18 is made of synthetic rubber such as chloroprene rubber, foamed resin, or the like. The buffer 18 includes an annular annular portion 18a and a plurality of projecting portions 18b projecting radially from the annular portion 18a. The inner diameter of the annular portion 18a is formed to fit into the protrusion 9c (see FIG. 3) of the fan case 9. In the present embodiment, eight protruding portions 18b are provided at equal intervals in the circumferential direction. At this time, the total area of the protrusions 18b is formed larger than the total area of the spaces between the protrusions 18b.

  In the electric blower 6, the annular portion 18a of the shock absorber 18 is fitted into the protrusion 9c, and the end surface 9d (see FIG. 3) is pushed into the opening surface of the housing 16 with the annular portion 18a interposed therebetween. Thereby, the protrusion 18 b of the buffer 18 is bent and is sandwiched between the peripheral surface of the fan case 9 and the peripheral wall of the housing 16. Further, the annular portion 18 a contacts the inner surface of the housing 16. Thereby, the electric blower 6 is buffered and held in the housing 16 by the elasticity of the annular portion 18a and the protruding portion 18b.

  Next, the housing 17 is engaged with the housing 16. The housings 16 and 17 holding the electric blower 6 are attached to the main body 2 by engaging the engaging portions 16b and 17a and screwing the screw portions 16c. As a result, the electric blower 6 is mounted in the main body 2, and the shock absorber 18 improves the vibration absorption of the electric blower 6 and the airtightness of the air flow path.

  In the vacuum cleaner 1 having the above-described configuration, negative pressure is generated in the dust collecting unit 20 by driving the electric blower 6, and dust on the floor surface is sucked from the suction port body 5 and flows through the extension pipe 4 and the connection hose 3. The air flow including dust flows into the dust collecting container 22 of the dust collecting unit 20 through the connection port 10a and the inflow port 22a, and forms a swirling air flow in the dust collecting container 22. The relatively large dust contained in the airflow is removed by the centrifugal force of the swirling airflow, and is accumulated in the dust collecting container 22.

  The airflow from which the large dust has been removed rises, and fine dust is collected by the filter 37. The airflow that has passed through the filter 37 flows through the exhaust passage 42 and flows out of the dust collector 20 through the dust collector exhaust port 42a. The airflow flowing out from the dust collecting unit 20 flows through the duct 15 and is exhausted from the exhaust port 10b through the electric blower 6.

  According to this embodiment, the end surface 9 d of the fan case 9 is pushed into the cup-shaped housing 16 with the annular portion 18 a of the buffer body 18 interposed therebetween. Thus, the electric blower 6 is held by the housing 16 by the elasticity of the protruding portion 18b that is sandwiched between the peripheral surface of the fan case 9 and the peripheral wall of the housing 16 and is bent with respect to the annular portion 18a. The housing 16 is attached to the main body 2, and the electric blower 6 is attached to the main body 2.

  Thereby, even if the mounting position of the buffer 18 is shifted, the housing 16 can be removed and the position can be corrected, so that the housing 16 and the buffer 18 can be easily mounted on the electric blower 6. Therefore, the manufacturing man-hour of the vacuum cleaner 1 can be reduced. Further, since the buffer body 18 is not bonded as in the conventional example, it is possible to prevent the vibration-proof performance and the airtight performance from being deteriorated due to the buffer body 18 being altered by the adhesive.

  Further, since the annular portion 18a is fitted into the protrusion 9c protruding around the air inlet 9a of the fan case 9 and the fan case 9 is pushed into the housing 16, the buffer 18 can be easily positioned to improve workability. can do.

  Moreover, since the protrusion part 18b of the buffer 18 is provided in eight places and is arrange | positioned at equal intervals in the circumferential direction, the electric blower 6 can be hold | maintained stably. In addition, if the protrusion part 18b is provided in three or more places, the electric blower 6 can be hold | maintained stably.

  Moreover, since the total area of the protrusions 18b is larger than the total area of the spaces between the protrusions 18b, the electric blower 6 can be held more stably and the vibration isolation performance can be improved.

  In the present embodiment, the vacuum cleaner 1 is formed in a canister type in which the suction port body 5 is connected to the main body portion 2 in which the electric blower 6 is housed via the connection hose 3. May be a vertical vacuum cleaner provided integrally.

  According to this invention, it can utilize for the vacuum cleaner provided with the electric blower.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 2 Main part 3 Connection hose 4 Extension pipe 5 Suction port 6 Electric blower 9 Fan case 10 Main body cover 16, 17 Housing 18 Buffer 18a Annular part 18b Protrusion part 19 Dust collection chamber 20 Dust collection part 22 Dust collection Container 22a Inlet 42 Exhaust flow path 42a Dust collector exhaust port

Claims (5)

In a vacuum cleaner manufacturing method in which an electric blower covered with a fan case having an air intake opening at one end surface is arranged in a main body portion having a dust collecting portion for collecting dust, a cup shape having an opening surface on one side A housing that is formed and has a hole on the opposite surface of the opening surface, and a buffer that has an annular annular portion and a plurality of projecting portions that project radially from the annular portion,
The end surface of the fan case is pushed into the opening surface of the housing with the annular portion interposed therebetween, and is bent with respect to the annular portion between the peripheral surface of the fan case and the peripheral wall of the housing. Holding the electric blower in the housing by the elasticity of the protruding portion;
Attaching the housing holding the electric blower to the main body,
The manufacturing method of the vacuum cleaner characterized by providing.   2. The fan case according to claim 1, wherein the fan case has a protrusion protruding around the air inlet, and the fan case is pushed into the housing by fitting the annular portion to the protrusion. Manufacturing method of electric vacuum cleaner.   The manufacturing method of the vacuum cleaner of Claim 1 or Claim 2 which provided the said protrusion part in three or more places, and has arrange | positioned at equal intervals in the circumferential direction.   The method of manufacturing a vacuum cleaner according to claim 3, wherein the total area of the protrusions is larger than the total area of the spaces between the protrusions. In an electric vacuum cleaner in which an electric blower covered with a fan case having an air inlet opening at one end surface is disposed in a main body portion having a dust collecting portion for collecting dust, the cup is formed in a cup shape having an opening surface on one side. And a housing having a hole on the opposite surface of the opening surface, and a buffer body having an annular annular portion and a plurality of projecting portions projecting radially from the annular portion,
The end surface of the fan case is pushed into the opening surface of the housing with the annular portion interposed therebetween, and is bent with respect to the annular portion between the peripheral surface of the fan case and the peripheral wall of the housing. The electric vacuum cleaner characterized in that the electric blower is held in the housing by the elasticity of the protrusion.

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