JPH1156696A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the assembly work with small force by using a tip of a shaft body attached to a through hole of an upper case from the inside of the upper case as a turning shaft of a handle, supporting the shaft body on the upper case elastically, and sliding the shaft body which passes through the through hole. SOLUTION: A screw which fixes a cover body is arranged below a handle 115, and the screw is tightened to a screw tightening part of the cover body 116 through a through hole in an upper case 110. The handle 115 is attached to the upper case 110 in such a manner that it can turn freely in a cylindrical recessed section 151 in which a tip of a shaft body 150 is locked, and the cylindrical shaft body 150 is attached to a through hole of a cylindrical body 152 provided integrally in the upper case 110 from the inside of the upper case 110. An elastically deformable locking body 154 is integrally formed on the shaft body 150 to lock it in a projection 155 provided in the upper case.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vacuum cleaner,
In particular, the present invention relates to a vacuum cleaner provided with handle fixing means.

[0002]

2. Description of the Related Art In many vacuum cleaners, a handle for carrying the cleaner is rotatably mounted on an upper case. Conventionally, a protruding rotary shaft integrally provided on the upper case is provided, and the handle is rotatably disposed on the upper case by locking a circular concave portion formed on the handle on the rotary shaft. Have been. Accordingly, the handle is mounted on the upper case in a self-contained manner.

Further, in order to integrally form the protruding rotary shaft with the upper case, a hole must be formed below the rotary shaft in the upper case due to the structural limitation of the mold for manufacturing the upper case. I had to.

[0004]

However, since the handle is fitted into the upper case forming the outer shell of the vacuum cleaner, there is a disadvantage that the handle cannot be disassembled and the case is damaged if it is forcibly removed.

Further, when the handle is fitted, the handle and the upper case are deformed and fit, so that a strong force is required for assembly. Further, when a substantially U-shaped concave portion for storing the handle is formed integrally with the upper case, even if the handle tries to get over the protrusion of the upper case,
Since the upper case wall is located on the opposite side of the projection, the handle cannot be deformed on the opposite side of the projection, making assembly work difficult and causing a large stress on the upper case and handle during assembly. was there.

In addition, a hole must be formed in the upper case below the rotating shaft due to the structural limitation of the manufacturing die.
The disadvantage was that another component had to be used to fill this hole. If a hole is formed in the vicinity of the handle rotation axis of the upper case, exhaust air and noise from the electric blower disposed inside the hole will leak, resulting in an unsanitary and noisy vacuum cleaner. Furthermore, if water is accidentally spilled into the vacuum cleaner, water that has entered around the handle will flow from this hole into the control board or the body housing the electric blower, which may cause a safety problem. .

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, to perform an assembling operation with a small force, to have good assemblability, to be disassembled without being damaged and to have good maintainability, and not to generate a large stress at the time of assembling. An object of the present invention is to provide a safe vacuum cleaner having good airtightness near the rotation shaft, good hygiene, low noise, and safety.

[0008]

In order to achieve the above object, the present invention is characterized in that a through hole is provided in the upper case, and a tip of a shaft attached to the through hole from the inside of the upper case. Is configured to be a rotating shaft of the handle, and the shaft body is elastically supported by the upper case, so that the shaft body passed through the through hole can slide.

According to the present invention, the assembling work can be performed with a small force, the assembling property is good, the disassembly can be performed without damage, the maintenance property is good, no large stress is generated at the time of assembling, and the airtightness near the handle rotating shaft is obtained. It is possible to provide a safe vacuum cleaner which is good in hygiene, quiet in sound, and safe.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 7 is a perspective view showing the appearance of a vacuum cleaner according to one embodiment of the present invention.

In FIG. 7, reference numeral 501 denotes a cleaner main body having a built-in control circuit, an electric blower, etc., 502 denotes a hose connected to a suction port of the cleaner main body 501, 503 denotes a hose hand portion, and 504 denotes a hose 502. Of the tip (hose hand 5
03), an extension body connected to the extension pipe 504, a switch operation unit 506 provided on the hose hand 503, and a first infrared light emitting unit 507 provided on the hose hand 503. Part, 508 is hose hand part 5
Reference numeral 509 denotes a second infrared light-emitting unit provided at 03, an infrared light-receiving unit provided at the upper surface of the cleaner body, and 510 denotes a ceiling in the room.

FIG. 5 is a longitudinal sectional view of a vacuum cleaner according to one embodiment of the present invention.

The cleaner main body 501 has a lower case 101 at the front thereof, which covers the lower part, a cover 102, which covers the front upper part, a suction port 103 provided on the cover 102, and a dust collection chamber for accommodating a dust collection bag. 104, an airtight holding cover 105 attached to the lid 102 with a member different from the lid 102 to maintain airtightness in the dust collection chamber 104, and the lower case 1
01 and the inner case 106, the electric blower room 10
7.

The dust collecting chamber 104 contains a dust filter 114, and the electric blower chamber 107 contains an electric blower 108 for collecting dust. This electric blower 1
A filter 109 is provided on the intake side of
It is in communication with 4. On the upper part of the inner case 106, a board storage part 111 covered with the upper case 110 is formed, and the control board 112 is stored. On the control board 112,
An infrared light receiving element 113 that receives infrared signals emitted from the first infrared light emitting section 507 and the second infrared light emitting section 508 of the hose hand section 503 is provided. An infrared light receiving unit 509 formed of another material that transmits infrared light is provided on the upper case 110 so that an infrared signal reaches the infrared light receiving element 113. A handle 115 and a lid 102 are rotatably attached to the upper case 110. Behind the upper case, the cover body 116 has a screw 1
17.

Next, the operation of the electric vacuum cleaner according to the present invention will be described with reference to FIGS.

When the vacuum cleaner user presses one of the switch operation units 506 provided on the hose hand unit 503, a signal code corresponding to the pressed switch is converted into an infrared signal as a first infrared light emitting unit 507 and a second infrared light emitting unit 507. Are emitted from the infrared emitting section 508. The first infrared light emitting unit 507 is disposed so as to face substantially vertically upward in a normal use state, and an infrared signal emitted from the first infrared light emitting unit 507 is reflected on a ceiling or a wall of a room, and reflected. The light reaches the infrared light receiving unit 509 of the cleaner main body 501. In addition, the second infrared light emitting unit 508 is disposed at the grip end of the hose hand so as to face downward from substantially horizontal, and the infrared signal emitted from the second infrared light emitting unit 508 is directly cleaned. The light reaches the infrared light receiving section of the machine body 501. Infrared receiver 509
Is received by the infrared light receiving element 113, and the vacuum cleaner is controlled via the control board 112.

As described above, the vacuum cleaner according to this embodiment transmits the operation information input by the user to the cleaner main body 501 using an infrared signal to control the vacuum cleaner. , Hose 502, extension tube 50
It is not necessary to use a power supply line for 4 and the like, and the weight of the vacuum cleaner can be reduced.

As described above, the vacuum cleaner uses the suction airflow generated by the operation of the electric blower to remove dust sucked from the suction body 505 through the extension pipe 504 and the hose 502 to the dust collection filter 114 in the dust collection chamber 104. Collect dust. The airflow filtered by the dust collecting filter 114 is further filtered by the filter 109 to remove fine dust, and then sucked into the electric blower 108. The airflow discharged from the electric blower 108 is guided to the outside of the electric blower room 107 from an outlet below the electric blower room 107. Exhaust gas discharged from the electric blower room 107 first hits a sound absorbing material 118 provided inside the lower case 101, bends about 90 degrees, proceeds to the rear of the main body, moves upward along the sound absorbing material 118, and is filtered again by the exhaust filter 119. After that, it is discharged outside the main body. Here the exhaust filter 119
Is held between the cover body 116 and the filter cover 120, and the exhaust filter 119 can be easily replaced by removing the filter cover 120.

A screw 117 for fixing the cover body is provided below the handle 115, and the screw 117 is
The cover member 116 is screwed through a through hole 130 provided in the cover body 116. Cover body 1
Since the 16 screw tightening portions 131 are arranged inside the upper case 110, the means for fixing the cover body 116 is not visible from the outside, and only the head of the screw is visible when the handle is lifted. is there. In addition, since the concave portion for lifting the handle 115 is formed integrally with the upper case, dust accumulated in the concave portion of the upper case 110 in which the handle 115 is stored can be easily cleaned. Further, the cover body 116 is integrally provided with a foot 133 when the main body stands. The cover body 116 is screwed on the upper part and the lower case 101 on the lower part.
Since the main body is fixed by locking the main body, the main body does not come off even if the main body is accidentally dropped and a strong impact is applied to the foot portion 133. When the cover body 116 is removed, the upper case 110
A fixing screw 134 appears. For this reason, the screw is not visible from both sides of the upper and lower surfaces of the vacuum cleaner.

Hereinafter, the means for attaching the handle 115 will be described with reference to FIGS. FIG. 1 is a vertical cross-sectional view of a partial top view of a vacuum cleaner according to one embodiment of the present invention, FIG. 2 is a vertical cross-sectional view before attaching a handle according to one embodiment of the present invention, and FIG. 3 is one embodiment of the present invention. And FIG. 4 is a longitudinal sectional view after attaching the handle according to one embodiment of the present invention.

1 to 4, the handle 115 is rotatably attached to the upper case 110 by a cylindrical recess 151 to which the tip of the shaft 150 is locked. The cylindrical shaft body 150 is a cylindrical body 15 provided integrally with the upper case 110.
It is attached to the second through hole 153 from inside the upper case 110. An elastically deformable locking body 154 is integrally formed with the shaft 150, and the locking body 154 is locked to a projection 155 provided on the upper case.

In FIG. 2, when a force is applied in the direction of the arrow to assemble the handle 115, the inclined portion a 156 below the concave portion 151 of the handle 115 comes into contact with the inclined portion b 157 at the tip of the shaft 150. When a further force is applied from this state, the shaft 150 is moved by the inclined portion a156 into the through hole 1.
Slide inward while being supported by 53. In FIG. 3, the handle 115 is supported by the upper case wall 158 on the outside and cannot be deformed, but the shaft 150 slides in the direction of the arrow due to the elastic deformation of the locking body 154. In FIG. 4, when the handle 115 is accommodated in the upper case 110, the shaft 150 slides by the elastic force of the locking body 154, and the tip of the shaft 150 is
Get into 51.

When disassembling the handle, the locking member 154 is deformed in FIG.
The handle 115 can be removed without losing its appearance by removing the shaft 150 from the inside of the upper case 110 and pulling it out by removing the shaft 150 from the inside.

Also, by increasing the diameter inside the tip of the shaft 150 and increasing the diameter inside the outside of the through hole 153, the cylindrical body of the upper case can be secured without rattling the shaft 150.
Since it can be mounted on the 152, the handle mounting portion can be provided with good stability without swinging the rotating shaft. Furthermore, by making the length of the through-hole 153 longer than its diameter, it is possible to mount the through-hole 153 more stably.

Furthermore, since the shaft 150 is separate and invisible from the exterior, the shaft 150 can be made of a material different from that of the case. For this reason, only the shaft 150 can be made of a material having high strength and low friction.

When the handle 115, the upper case 110, and the shaft 150 are made of the same material, since they do not contain different kinds of materials, there is an advantage that they can be disposed without being disassembled.

[0028]

As described above, according to the present invention, a through-hole is provided in the upper case, and the tip of the shaft attached to the through-hole from the inside of the upper case serves as a rotation axis of the handle. The shaft body is elastically supported by the upper case so that the shaft body that passes through the through hole can be slid so that assembly work can be performed with a small force, good assemblability, disassembly without damage and maintenance A good vacuum cleaner that provides good vacuum, does not generate large stress at the time of assembly, has good airtightness near the handle rotation shaft, is hygienic, quiet, and can provide a safe vacuum cleaner. Can be provided.

[Brief description of the drawings]

FIG. 1 is a partial top vertical sectional view of a vacuum cleaner according to one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view before attaching a handle according to one embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view during mounting of a handle according to one embodiment of the present invention.

FIG. 4 is a longitudinal sectional view after a handle is attached according to an embodiment of the present invention.

FIG. 5 is a vertical sectional view of the vacuum cleaner according to one embodiment of the present invention.

FIG. 6 is a top view of the vacuum cleaner according to one embodiment of the present invention.

FIG. 7 is an external perspective view of the vacuum cleaner according to one embodiment of the present invention.

[Explanation of symbols]

102: lid, 104: dust collection chamber, 110: upper case, 1
12: control board, 115: handle, 150: shaft, 15
3 ... Through hole.

Claims (11)

[Claims] 1. A lower case in which a dust collecting section having an opening and an electric blower storage section are juxtaposed, a lid covering the opening of the dust collecting chamber, and the outer casing of the cleaner above the electric blower storing section. A vacuum cleaner having an upper case and a handle rotatably attached to the upper case, wherein a shaft is provided in the upper case, and the shaft is attached to the through hole from inside the upper case. The tip of the handle is configured to be a rotation axis of the handle, and the shaft is elastically supported on the upper case, so that the shaft passing through the through hole can slide. And vacuum cleaner. 2. The vacuum cleaner according to claim 1, wherein the shaft is separated into left and right parts. 3. The vacuum cleaner according to claim 1, wherein a length of the through hole is longer than a diameter of the through hole. 4. The vacuum cleaner according to claim 1, wherein an elastic portion is integrally formed with the shaft. 5. The vacuum cleaner according to claim 1, wherein an inclined portion for assembling the handle is provided at a distal end portion of the shaft body. 6. The vacuum cleaner according to claim 1, wherein a tip of the shaft body is made thinner than a root thereof, and the size of the through hole is made thinner on the outside than on the inside. 7. The vacuum cleaner according to claim 1, wherein a material of the shaft body is different from a material of the handle and the upper case. 8. The vacuum cleaner according to claim 1, wherein the through hole is formed in a cylindrical shape. 9. The vacuum cleaner according to claim 1, wherein a recess for accommodating a handle is formed in the upper case provided with the through hole. 10. The vacuum cleaner according to claim 1, wherein a control board is provided below the through hole. 11. The vacuum cleaner according to claim 1, wherein the through hole is provided inside a concave portion of the upper case for accommodating the handle.