JPS54158069A - Indicator protector for vacuum cleaner - Google Patents

Indicator protector for vacuum cleaner

Info

Publication number
JPS54158069A
JPS54158069A JP6638078A JP6638078A JPS54158069A JP S54158069 A JPS54158069 A JP S54158069A JP 6638078 A JP6638078 A JP 6638078A JP 6638078 A JP6638078 A JP 6638078A JP S54158069 A JPS54158069 A JP S54158069A
Authority
JP
Japan
Prior art keywords
pointer
elbow
negative pressure
pipe
increased
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6638078A
Other languages
Japanese (ja)
Other versions
JPS613486B2 (en
Inventor
Hiroshi Kawakami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6638078A priority Critical patent/JPS54158069A/en
Publication of JPS54158069A publication Critical patent/JPS54158069A/en
Publication of JPS613486B2 publication Critical patent/JPS613486B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Filters For Electric Vacuum Cleaners (AREA)
  • Measuring Volume Flow (AREA)

Abstract

PURPOSE: To ensure that the outside air is sucked in when the negative pressure in a dust collecting box has increased and that a pointer returns instantaneously by providing a connection pipe which bypasses the outside air on the movement of the pointer.
CONSTITUTION: A thin connection pipe 28 is so arranged to connect an elbow 19 with the gap 27 formed between a pipe 20 and a pointer 21 and a cover 24. During cleaning, with a filter clogged or with suction means stopped up, the negative pressure in the elbow 19 increases and a pointer 21 moves. From this time on, the outsie air flows into the elbow 19 through the pipe 28. With the suction means released from stop-up, the negative pressure in the elbow 19 decreases and the pointer 21 returns instantaneously. As a result, the airflow for preventing heating can be increased and safety is enhanced.
COPYRIGHT: (C)1979,JPO&Japio
JP6638078A 1978-06-01 1978-06-01 Indicator protector for vacuum cleaner Granted JPS54158069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6638078A JPS54158069A (en) 1978-06-01 1978-06-01 Indicator protector for vacuum cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6638078A JPS54158069A (en) 1978-06-01 1978-06-01 Indicator protector for vacuum cleaner

Publications (2)

Publication Number Publication Date
JPS54158069A true JPS54158069A (en) 1979-12-13
JPS613486B2 JPS613486B2 (en) 1986-02-01

Family

ID=13314156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6638078A Granted JPS54158069A (en) 1978-06-01 1978-06-01 Indicator protector for vacuum cleaner

Country Status (1)

Country Link
JP (1) JPS54158069A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100556489B1 (en) * 1999-11-23 2006-03-03 엘지전자 주식회사 A device for avoiding the obstruction of airflow in a cyclone type dust-collecting application

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0361591U (en) * 1989-10-20 1991-06-17
JPH05215839A (en) * 1991-12-06 1993-08-27 Nec Corp Laser range finder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100556489B1 (en) * 1999-11-23 2006-03-03 엘지전자 주식회사 A device for avoiding the obstruction of airflow in a cyclone type dust-collecting application

Also Published As

Publication number Publication date
JPS613486B2 (en) 1986-02-01

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