JPH1176111A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner in which a uniform seal can be achieved along the overall periphery of a seal member and at an optimum position. SOLUTION: This vacuum cleaner includes a lid 20 installed to close an upper opening 14 in a dust collecting chamber provided inside a vacuum cleaner main body, with one end of the lid 20 being rotatable about a shaft 22, and also includes an annular seal member 30 provided below the center of rotation of the end and sealing the space between the lid 20 and the upper opening 14, the lid 20 being opened and closed by rotating about an axis; when the lid 20 is closed, the abutting surfaces 40a, 40b of a sealing rib 40 provided on the cleaner main body are pressed against the abutting surfaces 32a, 32b of the seal lip 32 of the seal member 30 to close the dust collecting chamber. The abutting surfaces 32a, 32b of the seal lip 32 or the abutting surfaces 40a, 40b of the sealing rib 40 are provided along the direction of the tangent to the center of rotation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner having a lid which can be opened and closed at an upper opening of a dust collecting chamber, and an annular sealing member for sealing between the lid and the upper opening. About.

[0002]

2. Description of the Related Art Conventionally, there is known an electric vacuum cleaner in which an opening is formed in an upper part of a dust collecting chamber provided in a cleaner main body, and an opening and closing lid is provided in the opening.

As shown in FIG. 7, a sealing rib 3 is formed in an annular shape on the back surface of the lid 1, and a lower surface 3A of the rib 3 is formed horizontally. An L-shaped arm member 4 is attached to a rear portion of the lid 1, and an upper portion of the arm member 4 is rotatably supported by a shaft 5 provided on a cleaner body (not shown). . The lid 1 is opened and closed by rotating the lid 1 around its axis 5.

On the other hand, an annular seal member 6 is attached to the entire periphery of the upper opening of the dust collecting chamber, and a seal lip 7 is formed on the seal member 6, and an upper surface 7A of the seal lip 7 is provided. Is almost horizontal.

When the lid 1 is closed, the sealing rib 3 is pressed against the sealing lip 7 to seal the dust collecting chamber.

[0006]

Since the shaft 5 is mounted at a position higher than the position where the seal member 6 is mounted, and the lid 1 rotates around the shaft 5 to open and close. When the lid 1 is closed, the seal lip 7a far away from the shaft 5 (front side) is pressed in the direction of the arrow P1 (tangential direction) as shown in FIG. 8 to move from the chain line position to the solid line position. I do. Since the seal lip 7a is located far away from the shaft 5 (rear side), the angle D1 between the tangential direction P1 and the upper surface 7A of the seal lip 7a is large, and therefore, the movement amount of the seal lip 7a Is about 0.5 m, and the pressing allowance (movement amount) is relatively large.

However, as shown in FIG. 9, the seal lip 7b located near the shaft 5 is pushed in the direction of the arrow P2 (tangential direction) to move from the chain line position to the solid line position. The angle D2 between the direction P2 and the upper surface 7A of the seal lip 7b is small, so that the movement amount of the seal lip 7b is about 0.1 m, and the margin for pressing is very small.

For this reason, the seal lip 7b of the seal member 76 in the vicinity (rear side) of the shaft 5 cannot be sufficiently sealed, so that the sealing is not uniformly performed on the front and rear sides of the seal member 76. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a vacuum cleaner capable of sufficiently sealing even near the center of rotation. Another object of the present invention is to provide a vacuum cleaner capable of uniformly sealing regardless of the near side or far side with respect to the center of rotation.

[0010]

In order to achieve the above object, according to the present invention, an upper opening of a dust collecting chamber provided in a cleaner body is closed and one end is pivoted outside the upper opening. A lid that is rotatably supported, and an annular sealing member that is provided below the center of rotation and seals between the lid and an upper opening. It is opened and closed by rotating, and when the lid is closed, the lid or the contact surface provided on the cleaner body is pressed against the contact surface of the seal member to seal the dust collection chamber. In the vacuum cleaner, a contact surface of the seal member and one of a contact surface of the lid and the cleaner body are oriented in a tangential direction to the rotation center.

According to a second aspect of the present invention, there is provided a lid which closes an upper opening of a dust collecting chamber provided in the cleaner body and has one end rotatably supported outside the upper opening, and a rotation thereof. An annular sealing member provided below the center and sealing between the lid and the upper opening, wherein the lid is opened and closed by rotating about a pivot, and the lid is closed. When the sealing member is closed, the contact surface of the lid or the cleaner body is pressed against the contact surface of the seal member to seal the dust collection chamber. The contact surface is directed to a tangential direction side with respect to the rotation center, and is inclined from a contact surface of a seal member located at a position distant from the rotation center.

According to a third aspect of the present invention, there is provided a lid body which closes an upper opening of a dust collecting chamber provided in a cleaner body and has one end rotatably supported outside the upper opening, and a rotation thereof. An annular sealing member provided below the center and sealing between the lid and the upper opening, wherein the lid is opened and closed by rotating about a pivot, and the lid is closed. When formed, in the vacuum cleaner that closes the dust collection chamber by pressing a lid or a contact surface provided on a cleaner body against the contact surface of the seal member, the lid near the rotation center or The contact surface of the cleaner main body is directed to the tangential direction side with respect to the center of rotation, and is inclined more than the contact surface of the lid or the cleaner main body at a position distant from the center of rotation. I do.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a vacuum cleaner according to the present invention will be described with reference to the drawings.

1 and 2, reference numeral 10 denotes a main body of the electric vacuum cleaner. Inside the main body 10, an electric blower room 12 provided with an electric blower 11 and a dust collection room 13 for mounting a dust collection filter (not shown). Are formed. An opening 14 is formed in the upper part of the dust collecting chamber 13, and a lid 20 is provided in the opening 14 so as to be openable and closable.

An L-shaped arm member 21 is attached to a rear portion of the lid 20. The upper part of the arm member 21 is supported by a shaft 22 provided on the main body 10, and the lid 20 is rotated around the shaft 22. Is rotatable, and the lid 20 opens and closes by this rotation.

A downwardly extending holding rib 23 is provided on the back surface of the lid 20 in an annular shape, and an annular sealing member 30 is held by the holding rib 23. The mounting position of the seal member 30 is lower than the mounting position of the shaft 22.

As shown in FIG. 3, the seal member 30 has
It has an annular base 31 held by the holding rib 23, and the base 31 is integrally formed with an annular seal lip 32 protruding outward from the inside.

The lower surface (contact surface) 32a of the seal lip 32A far from the shaft 22 (front side) faces in a direction (tangential direction) orthogonal to the radial direction of the shaft 22 at this position. Similarly, the lower surface (contact surface) 32b of the seal lip 32B in the vicinity (rear side) of the shaft 22 is also oriented in a direction (tangential direction) orthogonal to the radial direction of the shaft 22 at this position. Nearby seal lip 32
The lower surface 32b of B is more inclined than the lower surface 32a of the seal lip 32A far away from the shaft 22.

On the other hand, on the periphery of the opening 14 of the dust collection chamber 13,
A sealing rib 40 for pressing against the seal lip 32 is formed in an annular shape, and an upper surface (contact surface) 40a of the sealing rib 40 far away from the shaft 22 is orthogonal to the radial direction of the shaft 22 at this position. Direction (tangential direction). Similarly, the upper surface (contact surface) 40b of the sealing rib 40 near the shaft 22 is also oriented in a direction (tangential direction) orthogonal to the radial direction of the shaft 22 at this position.
Is inclined more greatly than the upper surface 40a far away from the shaft 22.

Then, when the cover 20 is slightly rotated about the shaft 22 from the state shown in FIG.
The seal lips 32A and 32B are arranged around the shaft 22 in FIG.
Move tangentially from the position shown in. Seal lip 32
Since the lower surfaces 32a, 32b of the sealing lips 32A, 32B and the upper surfaces 40a, 40b of the sealing ribs 40 are oriented in the tangential direction, the lower surfaces 32a, 32B of the sealing lips 32A, 32B are moved as shown in FIG. 32b sealing rib 40
Upper surfaces 40a and 40b press over the entire surface.

By this pressing, as shown in FIGS. 5A and 5B, the seal lips 32A and 32B move from the chain line position to the solid line position.

The pressing direction of the seal lips 32A, 32B is the same as the direction of the lower surfaces 32a, 32b of the seal lip 32. That is, the lower surfaces 32a, 3 of the seal lip 32
The angle between 2b and the tangential directions P3 and P4 is approximately 90 degrees, and the amount of movement of the seal lip 32B near the shaft 22 as well as the seal lip 32A increases. For this reason, the pressing margin of the seal lip 32B can be sufficiently ensured, and the seal lip 32B can also have sufficient sealability.

This is the lower surface 32b of the seal lip 32B.
By tilting the lower surface 32a more than the lower surface 32a,
The same effect can be obtained since 2b is in a state of being close to the tangential direction. Also, the lower surface 32b is connected to the lower surface 32a.
By tilting the seal lip 32A more, the pressure allowance of the seal lip 32A and the pressure allowance of the seal lip 32B can be made the same, and uniform sealing can be performed on the far side and near side of the seal member 32 with respect to the shaft 22. Can be.

When the electric blower 11 is operated with the lid 20 kept closed, the dust collecting chamber 13 becomes negative pressure,
Due to this negative pressure, the lid 20 is slightly rotated around the shaft 22. However, since the lower surfaces 32a and 32b of the seal lip 32 and the upper surfaces 40a and 40b of the sealing ribs 40 face in a tangential direction, the seal lip is formed. The lower surfaces 32a and 32b of the seal 32 are further pressed against the entire upper surfaces 40a and 40b of the sealing rib 40. Therefore, the optimal position of the seal by the seal lip 32 is maintained, and the seal is always performed at the optimal position.

In the above embodiment, the lower surfaces 32a and 32b of the seal lip 32 and the upper surfaces 40a and 40b of the sealing rib 40 are oriented in the tangential direction P. However, as shown in FIG. The upper surface 41A of the sealing rib 41 may be horizontal only by forming the sealing surface 51 directly on the sealing member 50 without providing the sealing surface 51 and directing the sealing surface 51 in the tangential direction P. Further, as shown in FIG.
May be formed in an arc shape, and the tangent S of the surface 53a that contacts the sealing rib 41 may be oriented in the direction of the shaft 22. Further, as shown in FIG.
Only the surface 42 </ b> A of the sealing rib 42 that is in pressure contact with 4 may face the tangential direction P.

In the above embodiments, the seal members 32, 50, and 52 are attached to the lid 20 side.
Needless to say, the sealing members 30, 50, 52, 54 may be attached to the cleaner body side, and the sealing ribs 40, 41, 42 may be provided on the lid 20.

[0027]

As described above, according to the first aspect of the present invention, since one of the contact surfaces of the sealing member and the sealing rib is oriented in a tangential direction to the center of rotation, the pressing force is reduced. Can secure enough money,
Even the seal member near the rotation center can be sufficiently sealed.

According to the second aspect of the present invention, the contact surface of the seal member in the vicinity of the center of rotation is directed toward the tangential direction with respect to the center of rotation, and the seal member located at a position distant from the center of rotation. Since it is inclined from the contact surface, the pressing allowance of the seal member near the rotation center and the pressing allowance of the seal member far away from the rotation center can be made the same. In addition, sealing can be performed uniformly regardless of the near side or the far side with respect to the rotation center.

According to the third aspect of the present invention, the contact surface of the lid or the cleaner body near the center of rotation is directed toward the tangential direction with respect to the center of rotation, and is located at a position far away from the center of rotation. Since it is inclined from the contact surface of a certain lid or the cleaner body, the pressing margin of the seal member near the rotation center and the pressure margin of the seal member far away from the rotation center are the same. Therefore, sealing can be performed uniformly regardless of the near side or the far side with respect to the rotation center.

[Brief description of the drawings]

FIG. 1 is a side view showing the appearance of a vacuum cleaner according to the present invention.

FIG. 2 is a partial cross-sectional view of a part of the vacuum cleaner of FIG.

FIG. 3 is a sectional view conceptually showing a lid and a seal member.

FIG. 4 is a sectional view conceptually showing a lid and a seal member when the lid is closed.

FIG. 5A is an explanatory view showing a relationship between a seal lip and a sealing rib separated from an axis. (B) It is explanatory drawing which showed the relationship between the seal lip of the vicinity of a shaft, and the rib for sealing.

FIG. 6A is an explanatory view showing an example in which a contact surface is provided only on a seal member. (B) It is explanatory drawing which showed the example which made the contact surface arc shape. (C) It is explanatory drawing which showed the example which provided the contact surface in the rib for sealing.

FIG. 7 is an explanatory view conceptually showing a conventional lid.

FIG. 8 is an explanatory view showing a conventional seal lip located away from a shaft.

FIG. 9 is an explanatory view showing a conventional seal lip located near a shaft.

[Explanation of symbols]

 14 Opening 20 Lid 22 Shaft 30 Seal member 32 Seal lip 32a Contact surface 32b Contact surface 40 Sealing rib 40a Contact surface 40b Contact surface

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Noriaki Senda, 43 Horiyamashita, Hadano-shi, Kanagawa Prefecture Tec Hatano Plant Co., Ltd. Inside the Hadano Plant (72) Inventor Fumiki Mano 43 Horiyamashita, Hadano City, Kanagawa Prefecture Inside the Tech Hadano Plant Co., Ltd.

Claims (3)

[Claims] A cover for closing an upper opening of a dust collecting chamber provided in the cleaner body and having one end rotatably supported outside the upper opening; An annular sealing member that is provided and seals between the lid and an upper opening, wherein the lid is opened and closed by rotating around a pivot, and when the lid is closed, A vacuum cleaner for sealing a dust collection chamber by pressing a lid or a contact surface provided on a cleaner body against a contact surface of a seal member, wherein the contact surface of the seal member and a lid or a vacuum cleaner A vacuum cleaner characterized in that one of the contact surfaces of the main body is oriented in a tangential direction to the rotation center. 2. A lid body which closes an upper opening of a dust collecting chamber provided in a cleaner body and has one end rotatably supported outside the upper opening, and a lower side than a center of rotation thereof. An annular sealing member that is provided and seals between the lid and an upper opening, wherein the lid is opened and closed by rotating around a pivot, and when the lid is closed, In a vacuum cleaner that seals the dust collecting chamber by pressing a contact surface provided on a lid or a cleaner body against a contact surface of a seal member, the contact surface of the seal member near the center of rotation is The vacuum cleaner is directed to a tangential direction side with respect to the rotation center and is inclined more than a contact surface of a seal member located at a position far from the rotation center. 3. A lid body which closes an upper opening of a dust collecting chamber provided in the cleaner body and has one end rotatably supported outside the upper opening, and a lower side than a rotation center thereof. An annular sealing member that is provided and seals between the lid and an upper opening, wherein the lid is opened and closed by rotating around a pivot, and when the lid is closed, In a vacuum cleaner that seals the dust collection chamber by pressing a lid or a contact surface provided on a cleaner body against a contact surface of a seal member, the cover or the cleaner body near the rotation center may be closed. Face to face,
A vacuum cleaner which is directed to a tangential direction side with respect to the center of rotation and is inclined with respect to a contact surface of a lid or a cleaner body at a position distant from the center of rotation.