JPH0223232Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a vacuum cleaner, and includes a dust collection chamber on the negative pressure side of an electric blower of the vacuum cleaner body formed by combining a lower body case and an upper body case. This invention relates to a structure that seals the side and the atmosphere side of the exhaust side.

[Conventional technology]

This type of vacuum cleaner has a structure in which a dust collection case separate from the main body is in contact with the entire circumference of a seal packing that also serves as a support provided on the front of an electric blower built into the vacuum cleaner main body, or the dust collection case is collected in the main body case. Forming a partition wall that separates the dust room and the electric blower room,
A seal packing for the electric blower is provided around the ventilation section formed in this partition wall, and this seal packing is designed to keep the negative pressure side of the electric blower airtight between the dust collection chamber side and the exhaust side of the atmosphere side. It was getting worse.

[Problems to be solved by the invention] In the above-mentioned conventional vacuum cleaners with a separate dust collection case, the dust collection case must be installed separately from the main body of the vacuum cleaner, which is expensive and requires a partition in the main body of the vacuum cleaner. In a vacuum cleaner having a structure in which a wall is formed, in order to form a partition wall, a mold must be molded by sliding it toward the exhaust side of the vacuum cleaner body, which poses a problem that the mold becomes expensive.

The present invention was devised in view of the above-mentioned problems, and includes forming a partition wall in the lower main case constituting the vacuum cleaner main body, and installing electric blowers in the lower main case and the upper main case respectively on the electric blower room side of the partition wall. A ventilation opening facing the suction surface of the electric blower is formed to form a joined seal wall, and a partition wall formed in the lower body case and the upper body case are each provided with seal ribs that are vertically joined to each other. To provide a vacuum cleaner that can improve airtightness between a dust collection side and an atmosphere side, simplify the structure of a vacuum cleaner body, simplify a molding die, and be manufactured at low cost.

[Means for solving problems]

The vacuum cleaner of the present invention has a vacuum cleaner body formed with an electric blower chamber containing a built-in electric blower and a dust collection chamber connected to the electric blower chamber through a ventilation section of a partition wall and equipped with a filter, and a lower main body case. an upper main body case that covers the upper surface opening of the lower main body case, a partition wall forming at least an electric blower chamber and a dust collection chamber is formed in the lower main body case, and the lower main body case and the upper main body case A ventilation opening facing the suction surface of the electric blower is formed near the vertical center of the electric blower on the electric blower room side of the partition wall to connect the dust collection chamber side and the atmosphere side of the electric blower to each other. Seal walls to be sealed are respectively formed, and the dust collection chamber side of the seal wall of the upper main body case and the electric blower side of the partition wall of the lower main body case are vertically joined to each other at both left and right outer positions of the ventilation opening. This is characterized by the fact that sealing ribs are formed respectively.

[Effect]

In the vacuum cleaner of the present invention, an electric blower is housed in the electric blower chamber of the lower main body case, and the electric blower is installed opposite to the ventilation section through a seal packing fitted to the front end of the suction side of the electric blower. When the front part is brought into contact with the seal wall and the upper main case covers the top opening of the lower main case in this state, the seal walls of both main cases are joined to each other, and the seal rib of the seal wall of the upper main case and the bottom The sealing ribs on the partition wall of the main body case are vertically joined to each other, and the dust collection chamber side of the electric blower and the electric blower room side are airtightly partitioned, and even if there is a step between the two sealing walls, the sealing ribs can be joined securely. It is possible to maintain airtightness.

〔Example〕

Next, the configuration of an embodiment of the present invention will be explained with reference to the drawings.

Reference numeral 1 denotes a vacuum cleaner body, which is composed of a lower body case 2 molded from synthetic resin and having an open lower upper surface, and an upper body case 3 molded from synthetic resin.
This lower main body case 2 has a partition wall 6 approximately in the center that partitions the dust collection chamber 4 on the front side and the electric blower chamber 5 on the rear side.
A lattice-shaped ventilation section 7 is formed in the partition wall 6 to communicate the dust collection chamber 4 and the electric blower chamber 5, and a cylinder communicating with the dust collection chamber 4 is formed on the front surface of the lower main body case 2. A shaped suction port 8 is opened. Further, a projecting wall 10 forming a cord storage chamber 9 is formed on one side of the electric blower chamber 5.

The electric blower chamber 5 of the lower body case 2 has a depth that is approximately the same as the diameter or height of the electric blower 11, and is communicated with an atmosphere-side exhaust hole 12 that is opened on the back surface of the lower body case 2. . A cover 1 having air permeability is provided inside the exhaust hole 12.
2a is attached.

Further, the partition wall 6 of the lower body case 2 is formed to approximately the same position as the top opening of the lower body case 2, and a seal wall 13 is housed in the electric blower chamber 5 on the electric blower chamber 5 side of the partition wall 6. from the upper edge of this seal wall 13 to approximately the center position of the electric blower 11.
a semicircular ventilation opening 15 that makes the suction surface of the fan cover part 14 face the ventilation part 7 of the partition wall 6;
A notch is formed on both sides of the seal wall 13, and guide protrusions 16 are integrally formed in the shape of a rib along the inner surface of the lower main body case 2 up to the upper opening.

Further, on the partition wall 6 of the lower main body case 2, seal ribs 17, 18 are formed in two parallel strips extending vertically from both ends of the ventilation opening 15 of the seal wall 13 to approximately the top opening position.
The lower portions of the sealing ribs 17 and 18 are formed integrally with the partition wall 6.

Further, in the electric blower chamber 5 of the lower main body case 2, an electric blower 11 is provided spaced apart and facing the seal wall 13.
A support wall 20 for supporting the fan cover part 14 is formed up to the height of the center position of the electric blower 11 housed in the electric blower chamber 5.
Support part 2 that fits and supports fan cover part 1 of No. 1
1 is formed in a semicircular shape, and guide protrusions 22 are integrally formed in the shape of a rib on both sides of the support portion 21 along the inner surface of the lower main body case 2 up to the upper opening.

Further, the upper main body case 3 is formed with a partition wall 23 whose lower edges are joined to the upper edge of the partition wall 6 of the lower main body case 2 in the width direction.
A sealing wall 24 is formed downward on the electric blower chamber 5 side of this partition wall 23 at a height up to approximately the center position of the electric blower 11 housed in this electric blower chamber 5, and the lower edge of this sealing wall 24 A semicircular ventilation opening 25 is cut out from the fan cover portion 14 of the electric blower 11 so that the suction surface of the fan cover portion 14 faces the ventilation portion 7 of the partition wall 6.

Further, two seal ribs 1 are formed on the partition wall 6 of the lower body 2 from both sides of the ventilation opening 25 on the seal wall 24 of the upper body case 3.
Both sides between 7 and 18 are the sealing ribs 17 and 18.
The thickness dimension D ₂ is approximately the same as the spacing dimension D ₁ of the seal ribs 17 and 18 so that the seal ribs 17 and 18 are joined in the vertical direction to the side surface of the
A sealing rib 26 is formed vertically in the direction in which the mold is removed.

The distance W 1 between the inner side surfaces of the left and right seal ribs 17 of the partition wall 6 of the lower body case ₂ and the distance W 2 between the outer surfaces of the left and right seal ribs 26 formed on the seal wall 24 of the upper body case ₃ are approximately The edges of at least one of the seal ribs 17 and 18 of the partition wall 6 of the lower main body case 2 and the seal rib 26 formed on the seal wall 24 of the upper main body case 3 are formed to be the same as the other seal wall 24 or The seal ribs 17 and 18 of the partition wall 6 and the seal wall 2 are in contact with the partition wall 6.
The protruding amounts H ₁ and H ₂ of the seal ribs 26 of No. 4 are approximately the same as the distance between the partition wall 6 and the seal wall 24 .

Further, on both sides of the seal wall 24 of the upper main body case 3, protruding pieces 29 are formed which protrude in a substantially L-shape toward the electric blower chamber 5 side. Guide ribs 30 and 31 are vertically formed to fit between the guide protrusions 16 and 22 formed on the seal wall 13 and the support wall 20, respectively, and the dimension between the outer surfaces of the guide ribs 30 and 31 is L ₁ is the inner dimension of the guide protrusions 16 and 22
It is formed approximately equal to L ₂ .

Furthermore, a support wall 27 for supporting the fan cover portion 14 of the electric blower 11 is provided on a projecting piece 29 protruding from the seal wall 24 of the upper main body case 3 toward the electric blower chamber 5 side and facing away from the seal wall 24 . It is formed up to the height of the center position of the electric blower 11 housed in the electric blower chamber 5, and the electric blower 11 is formed from the lower edge.
A support portion 28 that fits and supports the fan cover portion 14 of
is formed in a semicircular shape.

Further, an accessory storage section 33 such as a floor brush that can be opened and closed by a cover plate 32 is formed at the rear of the upper main body case 3, and a dust collection chamber 4 of the lower main body case 2 is formed at the front part.
A lid 34 is provided to open and close the upper surface of the lid 34, and the lid 34 is held in a closed state by a clamp 34a.

In addition, a filter 35 is provided in the dust collection chamber of the lower body 2.
can be inserted and removed by opening the lid 34 of the upper main body 3. This filter 35 is constructed by attaching a mouth plate 37 to the opening of a dust collection bag 36, and this mouth plate 37 is airtightly abutted against the inner end of the suction port 8 via a packing 8a, and is shaped like a clamp. It is detachably held by a mounting plate 38. The air flow sucked from the hose connected to the suction port 8 passes through the filter 35 and passes through the electric blower 1.
1 and the dust is captured by the filter 35.

In addition, a thick secondary filter 4 is installed in the ventilation section 7 of the partition plate 6 of the lower main body case 2 on the dust collection chamber 4 side.
0 is removably attached.

Note that a grip portion 4 is provided at the front of the lower main body case 2.
1 is formed, and a free wheel 42 is provided on the front side of the bottom, and wheels 43 are pivotally supported on both rear sides.

Further, a handle 54 is rotatably provided on the upper main body case 3.

Next, a method of assembling the vacuum cleaner of this embodiment will be explained with reference to the drawings.

A packing 44 molded from annular rubber or the like is fitted into the fan cover portion 14 of the electric blower 11 , and the electric blower 11 is stored in the electric blower chamber 5 of the lower main body case 2 . The annular edge 45 covering the front surface is brought into contact with the periphery of the ventilation opening 15 of the seal wall 13, and the fan cover part 14 is brought into contact with the support part 2 of the support wall 20.
1 through a packing 44. Next, the upper body case 3 is fitted into the upper opening of the lower body case 2. At this time, guide ribs 30 and 31 formed on both end protrusions 29 of the seal wall 24 of the upper main case 3 are aligned and inserted between the left and right guide protrusions 16 and 22 of the lower main case 2. At the same time, when the seal ribs 26 of the seal wall 24 of the upper body case 3 are aligned and inserted between the seal ribs 17 and 18 of the partition wall 6 of the lower body case 2, the guide protrusions 16 and 22 and the guide rib 3 are aligned and inserted.
0 and 31 are vertically joined to each other, and the seal rib 1 of the partition wall 6 of the lower main body case 2
7 and 18, both sides of the seal rib 26 of the seal wall 24 of the upper body case 3 are vertically joined to each other, and in this state, both the seal ribs 17 and 18 of the partition plate 6 or the seal rib 2 of the seal wall 24 are connected to each other in the vertical direction.
The end edge of at least one of the sealing ribs 6 and 6 abuts against the sealing wall 24 or the partition wall 6 for sealing. In this state, the seal walls 13 and 24 of both main body cases 2 and 3 are joined to each other,
A circular opening 46 is formed in each of the openings 15 and 25 of both seal walls 13 and 24, and a packing 44 fitted to the fan cover portion 14 of the electric blower 11 is brought into contact with the periphery of this suction opening 46. , the suction surface of the electric blower 11 is held airtight in the suction opening 46 . Further, in the electric blower 11, the fan cover portion 14 is connected to the support walls 20, 2 of both main body cases 2, 3.
It is clamped and held by the support parts 15 and 28 of No. 7 with a packing 44 interposed therebetween. In this way, the upper main body case 3 is fitted onto the lower main body case 2, and both the main body cases 2 and 3 are connected by screws that are screwed into the screw receivers 47. Vacuum cleaner body 1 assembled in this way
The upper opening of the dust collection chamber 4 can be opened and closed with a lid 34.

Next, the operation of this embodiment will be explained.

The dust collection chamber 4 of the vacuum cleaner main body 1 and the electric blower chamber 5 are separated by partition walls 6 and 23, and are housed in the electric blower chamber 5 facing the ventilation section 7 of the partition wall 6. The electric blower 11 has seal walls 13, 2
4 are mutually connected to the fan cover part 14 of the electric blower 11
The sealing rib between the partition wall 6 of the lower body case 2 and the seal wall 24 of the upper body case 3 can be sealed through the packing 44, and even if there is a step at the joining edges of the seal walls 13 and 24, where they are joined to each other. 17, 18, and 26 are vertically joined to each other, the negative pressure part of the electric blower 11 on the dust collecting chamber 4 side and the atmosphere side on the exhaust side are kept airtight without leaking. Furthermore, since the seal ribs 17, 18, and 26 of the partition wall 6 of the lower body case 2 and the seal wall 24 of the upper body case 3 are joined to each other in the vertical direction, the horizontal width of the lower body case 2 and the upper body case 3 is Directional positioning is easy.

Note that the two seal ribs 17 and 18 formed on the partition wall 6 of the lower body case 2 are joined to both sides of the seal rib 26 of the upper body case 3, thereby ensuring airtightness. Seal rib 26 between 18
Since these two seal ribs 17 and 18 are formed on the partition wall 13 inside the lower body case 2, sink marks etc. are avoided during molding. Even if this occurs, the appearance will not be impaired.

Further, the flatness of both the seal walls 13, 24 is obtained by the end edge of at least one of the seal ribs 17, 18 or the seal rib 26 coming into contact with the seal wall 24 or the partition wall 13. There is no difference in level between the joining edges of the seal ribs 13, 2, which are joined to each other, and it is possible to correct the deviation in the front-rear direction of the seal rib walls 13, 24 against which the electric blower 11 comes into contact, increasing airtightness.
The strength of 4 can also be increased.

Further, the protruding pieces 29 formed at both ends of the seal wall 24 of the upper body case 3 are provided with guide ribs 30 and 31 that engage with the guide protrusions 16 and 22 formed on the lower body case 2. When assembling the case 2 and the upper body case 3, the front and back positions are regulated without increasing the number of parts, and the front and back alignment is facilitated, making assembly easier. Airtightness can be improved.

The airflow sucked from the suction port 8 of the vacuum cleaner body 1 by the drive of the electric blower 11 passes through the filter 35 and is sucked into the suction surface of the electric blower 11 from the ventilation part 7 of the partition wall 6, collecting dust. The dust is captured in the dust collection bag 36 of the dust filter 35. At this time, the suction side and exhaust side of the electric blower 11 are the seal ribs 17 and 18 of the partition wall 13 of the lower main body case 2.
Due to the vertical connection between the seal wall 24 and the seal rib 26 of the upper main body case 3, there is no leakage.

[Effect of idea]

According to the present invention, the lower main body case constitutes a vacuum cleaner body, which forms an electric blower chamber containing an electric blower and a dust collection chamber connected to the electric blower chamber through a ventilation section of a partition wall and equipped with a filter. A partition wall is formed to form an electric blower chamber and a dust collection chamber, and a partition wall is formed in both main body cases, and the partition wall is connected to the electric blower chamber side near the vertical center of the electric blower, and the electric blower dust collection chamber side is joined to each other near the vertical center of the electric blower. A seal wall is formed to seal the upper body case and the atmosphere side, and a seal wall is formed on the dust collection chamber side of the seal wall of the upper body case and on the electric blower side of the partition wall of the lower body case side at both left and right outer positions of the ventilation section. Since we have formed sealing ribs that connect to each other in the vertical direction,
An electric blower is stored in the electric blower chamber of the lower main body case, and the front part of the electric blower is brought into contact with the partition wall facing the ventilation section through the packing fitted to the front end of the suction side of the electric blower. When the top opening of the lower main case is covered with the upper main case in this state, the partition wall and seal wall of both main case are joined to each other, and the seal rib of the seal wall of the upper main case and the partition wall of the lower main case are connected to each other. The seal ribs are vertically joined to each other, and the dust collection chamber side of the electric blower and the electric blower room side are airtightly partitioned, and even if there is a step between the two seal walls, the joint of the seal ribs ensures airtightness. There is no need to configure the dust collection chamber as a separate part, the mold has a simplified structure, and a product with high airtightness can be obtained at low cost.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional side view of a vacuum cleaner showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the main parts of the same, and FIG. 3 is an exploded view of the same vacuum cleaner. 1...Vacuum cleaner body, 2...Lower main body case, 3...Upper main body case, 4...Dust collection chamber, 5...
... Electric blower room, 6 ... Partition wall, 7 ... Ventilation section, 11 ... Electric blower, 13, 24 ... Seal wall, 17, 18, 26 ... Seal rib, 30, 3
1...Guide rib.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A vacuum cleaner body having a built-in electric blower chamber and a dust collection chamber connected to the electric blower chamber through a ventilation section of a partition wall and fitted with a filter, at the bottom thereof. The main body case is composed of a main body case and an upper main body case that covers an upper opening of the lower main body case, and at least a partition wall forming an electric blower chamber and a dust collection chamber is formed in the lower main body case, and the lower main body case and the upper main body case The main body case is joined to the dust collection chamber side of the electric blower and the atmosphere by forming a ventilation opening facing the suction surface of the electric blower near the vertical center of the electric blower on the electric blower room side of the partition wall. A seal wall is formed to seal the sides, and the dust collection chamber side of the seal wall of the upper main body case and the electric blower side of the partition wall of the lower main case side are formed in a vertical direction at both left and right outer positions of the ventilation opening. A vacuum cleaner characterized by forming sealing ribs that are joined to each other. (2) An edge of at least one of the seal rib formed on the partition wall of the lower body case and the seal rib of the seal wall of the upper body case is brought into contact with the other seal wall or partition wall. A vacuum cleaner according to claim 1 of the utility model registration claim. (3) Each sealing rib formed on the partition wall of the lower body case is formed by a pair of sealing ribs joined to both sides of each sealing rib of the sealing wall of the upper body case, respectively. The vacuum cleaner according to scope 1 or 2. (4) The seal wall of the upper main body case is provided with guide ribs at both ends that are joined to the lower main body case and regulate the position in the front and rear direction. The vacuum cleaner according to any one of Items 1 and 3.