JPS644781B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vacuum cleaner.

Noise countermeasures for vacuum cleaners are generally achieved by fitting support rubber around the outer periphery of both ends of the electric blower, and by using the circumferential surface of ribs formed in an arc shape on the inner surface of the main body case, or the inner edges of multiple ribs arranged radially. The electric blower is held through the support rubber. However, since the flexibility of the support rubber is inhibited and the wall thickness is insufficient, vibrations from the electric blower are easily transmitted to the main body case, and it cannot be said to be a sufficient noise countermeasure.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a vacuum cleaner that can extremely effectively prevent the generation of vibrations and the accompanying noise.

In this invention, a vibration absorbing part extending in the circumferential direction and a mounting part are integrally formed in a holding part that holds an electric blower, and the mounting part is held on the peripheral wall of the main body case. The blower is supported in a suspended state, and the transmission of vibration to the main body case is suppressed by the sufficient bending action and buffering action of the vibration absorbing part, thereby making it possible to extremely effectively reduce noise. The mounting portion is held between the split surfaces of the main body case, so that it can function as a bumper without adding any additional parts.

An embodiment of the present invention will be described based on the drawings. Main body case 1 and dust collection case 2 are connected to clamp 3
are connected by The dust collection case 2 is formed with a suction port 4 and a dust collection chamber 5 that accommodates a filter (not shown). The main body case 1 is often divided into two parts in order to assemble parts therein, but in this embodiment, it can be divided into an upper case 6 and a lower case 7. Of course, it may be divided into left and right. A locking hole 8 with which the clamp 3 engages, an air passage 9, and a circumferential rib 10 surrounding the air passage 9 are formed on the front surface of the main body case 1, and an exhaust hole 11 is formed on the rear surface. .

Next, an electric blower 13 housed in the electric blower chamber 12 is provided.

Therefore, annular holding parts 15 and 16 that hold the fan case 14 and the rear end of the electric blower 13 in a fitted state, and a vibration absorbing part 17 that extends outward from these holding parts 15 and 16 to the left and right. , and a mounting portion 18 that connects the outer ends of these vibration absorbing portions 17 in a front-to-back relationship are provided with a support member 19 integrally molded of an elastic material with excellent flexibility such as rubber. Therefore, the upper case 6 and the lower case 7
The mounting portion 19 is held between the dividing surfaces 20 on both sides. An enlarged portion 21 formed in the mounting portion 18 and having a wide vertical width protrudes from a horizontally long notch 22 formed in the dividing surface 20. Therefore, although the support member 19 is held between the upper case 6 and the lower case 7 while being pulled outward to the extent that tension is applied, it does not fall inward. Further, on the suction side of the holding portion 15, a thin annular seal portion 23 is integrally formed, which contacts the front surface of the main body case 1 with a light touch.

In such a configuration, cleaning is performed by driving the electric blower 13, but a negative pressure is generated in the dust collection chamber 5, and the pressure in the electric blower chamber 12 is equal to atmospheric pressure. Closely adheres to the surrounding area to prevent suction flow from leaking. The electric blower 13 is held in a suspended state, and the vibration absorbing portion 17 having a long radius exhibits a sufficient bending action and the buffering action is also promoted. Therefore, the vibration transmitted from the electric blower 13 to the main body case 1 is extremely low, and accordingly, noise can be significantly reduced.

Further, the main body case 1 is divided into two parts for assembling parts therein, and the support member 19 is held between the upper case 6 and the lower case 7 when the upper case 6 and the lower case 7 are assembled, so that the supporting work and support structure of the support member 19 are simple. Moreover, the expanded portion 21 of the support member 19 has a notch 2
By protruding to the outside of 2, it can serve as a bumper without using separate parts. Although there are two sets of the vibration absorbing part 17 and the mounting part 18 on the left and right, they may be formed only on one side. In this case, the mounting portion 18 may be suspended from the top surface of the main case 1 or fixed to the bottom of the main case 1.

By configuring this invention as described above,
The electric blower can be supported in a suspended state, and the radially long vibration absorbing section can provide sufficient bending action and cushioning, thereby reducing vibration to the main body case. It is possible to suppress transmission and reduce noise extremely effectively, and by holding the support part between the split surfaces of the main body case,
The support member can be supported when assembling the main body case, and therefore, the support work and support structure for the support member can be simplified, and
This has the effect that the mounting portion of the support member can protrude to the outside and serve as a bumper without using a separate member.

[Brief explanation of drawings]

The drawings show one embodiment of the invention.
2 is a partially cutaway side view, FIG. 2 is an exploded perspective view of the main body case and supporting member, and FIG. 3 is a longitudinal sectional front view taken along line AA in FIG. 1. DESCRIPTION OF SYMBOLS 1... Main body case, 5... Dust collection chamber, 13... Electric blower, 15-16... Holding part, 17... Vibration absorption part, 1
8... Attachment part, 19... Support member, 20... Divided surface.

Claims (1)

[Scope of Claims] 1. A main body case is provided that houses an electric blower that maintains a dust collection chamber in a negative pressure state, and a holding part that holds the outer periphery of the electric blower and a predetermined length from the holding part are provided. A supporting member is provided in which a vibration absorbing portion extending in the outer circumferential direction and a mounting portion located at an outer end of the vibration absorbing portion are integrally molded from a flexible elastic material, and the mounting portion is attached to the main body case. A vacuum cleaner characterized by: 2. A main body case that houses an electric blower that maintains the dust collection chamber in a negative pressure state can be divided and assembled freely with a plane parallel to the axis of the electric blower as a dividing plane, and a holding part that holds an outer peripheral part of the electric blower. A supporting member is formed by integrally molding a vibration absorbing part extending from the holding part to the outer circumferential direction with a predetermined length and a mounting part located at the outer end of the vibration absorbing part from a flexible elastic material. A vacuum cleaner characterized in that a part of the attachment part is provided outside the case and is held between the dividing surfaces of the main body case.