GB2114096A - Retractable reel for electric fumigator - Google Patents
Retractable reel for electric fumigator Download PDFInfo
- Publication number
- GB2114096A GB2114096A GB08302179A GB8302179A GB2114096A GB 2114096 A GB2114096 A GB 2114096A GB 08302179 A GB08302179 A GB 08302179A GB 8302179 A GB8302179 A GB 8302179A GB 2114096 A GB2114096 A GB 2114096A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cord
- reel
- enclosure
- main body
- winding mechanism
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
- H02G11/02—Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/20—Poisoning, narcotising, or burning insects
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M13/00—Fumigators; Apparatus for distributing gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4418—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means
- B65H75/4421—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means acting directly on the material
- B65H75/4426—Stopping at the end of winding or unwinding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/50—Storage means for webs, tapes, or filamentary material
- B65H2701/53—Adaptations of cores or reels for special purposes
- B65H2701/537—Stopping the winding or unwinding of reels which do not feature spring motors
Abstract
An electric fumigator for killing insects comprises a main body that has a heating element in the upper part and which is positioned rotatably within an enclosure 4, and a cord reel 5 that is positioned on the bottom of said main body 1 and around which a cord 2 is wound from said heating element, the base of said cord 2 being provided with a rotation limitating element 6. When the cord 2 has been unwound to the extreme end, said element 6 is stopped by guides 4h at an opening 4e in one wall of the enclosure 4 through which the cord is pulled out, so as to prevent the main body 1 from continuing to rotate in the unwinding direction which would result in the cord being inadvertently wound onto the reel in the wrong direction and possibly becoming kinked. The element 6 is flexible and is located in a recess in the reel periphery. Pawls 5b provided in the recess interlock with grooves 6a formed in the base of the element 6. <IMAGE>
Description
SPECIFICATION
Cord winding mechanism and electric fumigator for killing insects incorporating same
This invention relates to cord winding mechanisms and particularly but not exclusively to electric fumigators for killing insects incorporating such mechanisms.
Cord winding mechanisms find uses in a variety of applications for example in electrical extension leads in which a retractable electrical lead is wound onto a reel housed in an enclosure, as part of a mechanism enabling the electric lead of an electric appliance to be wound into the body of the apparatus or in ciothes line dispensers in which a retractable clothes line is stored on a reel.
Generally such mechanisms comprise an enclosure housing a cord reel onto which the chord is wound. The cord may be withdrawn from the enclosure by pulling the free end thereof and during withdrawal the cord reel rotates in a first direction. To retract the cord the cord reel is turned in the opposite direction.
When the cord has been fully withdrawn it is often possible to rotate the cord reel in both directions, i.e. in both the direction in which it was turning when the cord was being withdrawn and in the opposite direction, i.e. the normal rewinding direction. In both cases the cord will be rewound on the cord reel.
It is however, highly undesirable for the cord to be rewound on the reel in the "wrong" direction, i.e. by turning the cord reel in the same direction as it was turning when the cord was being withdrawn since in such circumstances the cord can become kinked. The present invention provides a mechanism which obviates this disadvantage.
According to the present invention there is provided a cord winding mechanism for a retractable cord comprising a cord reel onto which the cord may be wound rotatably mounted in an enclosure, whereby the cord may be withdrawn from the enclosure with the cord reel rotating in a first direction and may be retracted into the enclosure by rotating the cord reel in the opposite direction and wherein means are provided for preventing rotation of the cord reel in the first direction after a predetermined length of cord has been withdrawn wherein such rotation of the cord reel in the first direction would result in the cord being wound onto the reel.
Preferably the means for preventing rotation of the cord reel comprises an abutment element connected to the cord reel which on withdrawal of said predetermined length of cord is moved into engagement with part of the enclosure wall.
The cord winding mechanism of the present invention has been found to be particularly useful when incorporated into electric fumigators for killing insects and such use will now be described by way of example.
A known electric fumigator for killing insects of the type contemplated by the present invention is shown in Figs. 1 to 4. The apparatus comprises an enclosure a and rotatable main body b that has attached to the bottom a cord reel c around which a cord d is wound. When the apparatus is not in
use, all of the cord dcan be wound up within the enclosure a and this saves floor space and eliminates an accidental wire breakage. But if, after the cord d has been entirely pulled out of the casing, the main body is rotated in a direction opposite to the cored rewinding direction, a loop d' is formed near the base of the cord d about the cord reel c as shown in Fig. 4.If the cord is further wound in the presence of that loop d', the wound cord bulges out and is pressed against the inner surface of the enclosure a to make complete winding or smooth unwinding for the subsequent use difficult.
The purpose of the present invention is to eliminate this problem. It provides an electric fumigator for killing insects that includes a reverse rotation preventing element at the base of the cord that, after the cord has been entirely or partially pulled out of the enclosure, prevents the main body from rotating in a direction opposite the cord rewinding direction (it may make some idle turn but eventually it will rotated in the right direction). The apparatus of the present invention can be used without causing difficulty in rewinding or unwinding the cord.
Fig. 1 is an exploded view of the conventional electric fumigator for killing insects;
Fig. 2 is a section of the apparatus of Fig. 1 in its completed state;
Fig. 3 is a cross section of Fig. 2 taken along line Ill-Ill; Fig. 4 shows an electric cord in its wound form with a loop formed in it;
Fig. 5 is a perspective view showing one embodiment of the apparatus of the present invention;
Fig. 6 is an exploded view of the apparatus of
Fig. 5;
Fig. 7 is a cross section of the apparatus of Fig.
5 in its completed state; and
Fig. 8 shows a cord reel of the apparatus of Fig.
5 with the cord pulled out to the extreme end.
One embodiment of the present invention is now described by reference to Figs. 5 to 8. The main body 1 of an electric fumigator for killing insects is in a short tubular form which is provided with an opening 1 a in the upper part in which a mat impregnated with an insecticidal ingredient)s) (not shown) is fitted. Beneath the opening 1 a is provided a heating element 3 electrically connected to the base of a cord 2. The periphery of the bottom of the main body 1 is
provided with a flange 1 b which contacts the
underside of the area around a hole 4a in a
generally square lid 4, that, together with a bottom plate 42, makes up an enclosure 4.The bottom plate 42 is fitted into the lid 41 so that the resulting enclosure 4 holds the main body 1 with
its upper cylindrical part projecting upward through the hole 4a. The inner surface of the top
plate of the lid 41 is provided with downwardly extending lugs 4c which come into engagement with lugs 4d projecting from the inner surface of the bottom of the bottom plate 42 so that the bottom plate 42 is closely fitted into the lid 41 to form an integral casing.
The bottom of the main body 1 is provided with a cord reel 5 that projects from the bottom and serves as one component of a cord winding mechanism A. The other component is a reverse rotation preventing element 6 to be described later. The cord reel 5, combined with the reverse rotation preventing element 6 forms a disc, and has a through-hole 5a in one point of its periphery through which thg cord 2 comes out of the main body 1. A part of pawls 5b are erected in the vicinity of the hole 5a, and these pawls interlock with grooves 6a formed in the base of the element 6, to thereby secure the base of the element 6 to the cord reel 5. The elements 6 assumes a rectangular tubular form that is integrally formed with the base end of the cord 2 at its base end and is tapered toward the other end.To make the element 6 flexible, slits 6b are provided along the element 6 toward the tapered end at intervals. The element 6 is so shaped that when it is caused to run along the periphery of the cord reel 5, the two form a disc so that the cord 2 can be wound around the reel 5 to make a compact coil. The end of the cord 2 that has been taken up by the cord winding mechanism A composed of the cord reel 5 and element 6 extends out of the enclosure 4 through a guide hole 4e made in one side wall of the enclosure 4, and it is connected to a plug 7. The guide hole 4e consists of a rectangular hole 4f made in one side wall of the lid 51 and another rectangular hole 49 made in one side wall of the bottom plate 42.Two guides 4h project inwardly from the edges of the rectangular hole 49 for directing the cord 2 to be taken by by the cord winding mechanism A in the winding direction of the cord reel 5. The distance between the guides widens inwardly, and when the cord 2 is unwound from the cord reel 5 to the extreme end, the running end of the element 6 connected to the base end of the cord 2 is caught by the end of one guide 4h to prevent further rotation of the main body 1. In Fig. 6, the numeral 8 indicates the mark warming the user not to unwind the cord 2 further.
When the electric fumigator for killing insects is not being used, the cord 2 is wound up by the mechanism A attached to the bottom of the main body 1 rotatable with respect to the enclosure 4.
Before using the apparatus, the necessary length of the cord 2 is pulled out of the encosure 4. If the cord 2 is pulled to the extreme end, the running end of the reverse rotation preventing element 6 is stopped by guides 4h on the guide hole 4e as shown in Fig. 8. Therefore, if the user who wants to rewind the cord 2 unwittingly rotates the main body 1 in a direction indicated by arrow (a) opposite the cord winding direction, the end of the element 6 is caught by the guides 4h to prevent the wrong rotation. As a result, no loop is formed due to the reverse rotation of the cord 2, and the possibility of not being able to wind and unwind the cord for the next use is eliminated.
When the main body 1 is rotated in the right direction, the end of the element 6 runs in close contact with the periphery of the cord reel 5 to form a disc. Therefore, the cord can be wound around the reel 5 in a compact coil as shown in
Fig. 7.
As described in the foregoing, the electric fumigator for killing insects of the present invention comprises a cord reel mounted on the bottom of the main body rotatably relative to the enclosure, and a reverse rotation preventing element, which is stopped by a guide on a cord guiding hole when the cord has been pulled out of the enclosure to the extreme end, is provided at the base end of the cord (to be wound up by said cord reel). Because of this arrangement,
inadvertent rewinding of the cord in the wrong direction after using the apparatus can be prevented, and the diffuculty in rewinding and unwinding for the subsequent use that has been frequently observed with the conventional apparatus due to the wrong rewinding of the cord can be eliminated.
Claims (8)
1. An electric fumigator for killing insects comprising a main body 1 that has a heating element 3 in the upper part and which is positioned rotatably within an enclosure 4, and a cord reel 5 that is positioned on the bottom of said main body 1 and around which a cord 2 is wound from said heating element 3, the base of said cord 2 being provided with a reverse rotation preventing element 6 so, when said cord 2 has been unwound to the extreme end, said element 6 is stopped by guides 4h at an opening 4e in one wall of the enclosure 4 through which the cord is pulled out, so as to prevent the main body 1 from rotating in the wrong direction.
2. A cord winding mechanism for a retractable cord comprising a cord reel onto which the cord may be wound rotably mounted in an enclosure, whereby the cord may be withdrawn from the enclosure with the cord reel rotating in a first direction and may be retracted into the enclosure by rotating the cord reel in the opposite direction and wherein means are provided for preventing rotation of the cord reel in the first direction after a predetermined length of cord has been withdrawn wherein such rotation of cord reel in the first direction would result in the cord being
wound onto the reel.
3. A winding mechanism according to Claim 2 wherein the means for preventing rotation of the cord reel comprising an abutment element connected to the cord reel which on withdrawal of said predetermined length of cord is moved into engagement with part of the enclosure wall.
4. A winding mechanism according to Claim 3 wherein the abutment element is pivotally connected to the cord reel.
5. A winding mechanism according to Claim 3 or Claim 4 wherein the abutment element is flexible.
6. A winding mechanism according to any one of Claims 3 to 5 wherein the cord passes through a passage formed in the abutment element.
7. A winding mechanism according to any of
Claims 3 to 6 wherein the cord reel is provided with a recess in its periphery and the abutment element is located in said recess.
8. A electric fumigator for killing insects comprising a retractable cord winding mechanism according to any preceding claim.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982013479U JPS58117878U (en) | 1982-02-04 | 1982-02-04 | electric mosquito repellent |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8302179D0 GB8302179D0 (en) | 1983-03-02 |
| GB2114096A true GB2114096A (en) | 1983-08-17 |
| GB2114096B GB2114096B (en) | 1986-02-19 |
Family
ID=11834255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08302179A Expired GB2114096B (en) | 1982-02-04 | 1983-01-26 | Retractable reel for electric fumigator |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS58117878U (en) |
| KR (1) | KR870001311Y1 (en) |
| ES (1) | ES270087Y (en) |
| FR (1) | FR2520587B1 (en) |
| GB (1) | GB2114096B (en) |
| IT (1) | IT8320680V0 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2275670A (en) * | 1993-03-06 | 1994-09-07 | Michael Corcoran | Rewindable cable reel |
| EP1808073A1 (en) * | 2006-01-13 | 2007-07-18 | Omron Healthcare Co., Ltd. | Blood pressure measuring device |
| CN102754640A (en) * | 2012-07-30 | 2012-10-31 | 李经春 | Rotating disc type electric mosquito heater |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH210129A (en) * | 1939-05-02 | 1940-06-15 | Jakob Dr Bick | Cable winder. |
| GB831195A (en) * | 1956-05-04 | 1960-03-23 | David Rushworth | Improvements relating to self winding reels for use with safety lines |
| FR1364712A (en) * | 1963-05-14 | 1964-06-26 | Ass Ouvriers Instr Precision | Telephone cord storage system |
| JPS5182985U (en) * | 1974-12-25 | 1976-07-02 | ||
| JPS5566464A (en) * | 1978-11-07 | 1980-05-19 | Hitachi Ltd | Cord take-up device |
| JPS5837259Y2 (en) * | 1979-06-15 | 1983-08-22 | ライオン株式会社 | electric smoker |
| JPS57138590U (en) * | 1981-02-24 | 1982-08-30 | ||
| DE8110903U1 (en) * | 1981-04-10 | 1981-11-19 | Progress-Elektrogeräte Mauz & Pfeiffer GmbH & Co, 7000 Stuttgart | Small electrical appliances, in particular egg cookers |
-
1982
- 1982-02-04 JP JP1982013479U patent/JPS58117878U/en active Granted
- 1982-09-02 KR KR2019820006968U patent/KR870001311Y1/en active
-
1983
- 1983-01-26 GB GB08302179A patent/GB2114096B/en not_active Expired
- 1983-01-28 ES ES1983270087U patent/ES270087Y/en not_active Expired
- 1983-02-03 IT IT8320680U patent/IT8320680V0/en unknown
- 1983-02-03 FR FR8301711A patent/FR2520587B1/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2275670A (en) * | 1993-03-06 | 1994-09-07 | Michael Corcoran | Rewindable cable reel |
| GB2275670B (en) * | 1993-03-06 | 1996-04-10 | Michael Corcoran | Recoil cable reel |
| EP1808073A1 (en) * | 2006-01-13 | 2007-07-18 | Omron Healthcare Co., Ltd. | Blood pressure measuring device |
| KR100814547B1 (en) * | 2006-01-13 | 2008-03-17 | 오므론 헬스캐어 가부시키가이샤 | Blood pressure measuring device |
| US8075493B2 (en) | 2006-01-13 | 2011-12-13 | Omron Healthcare Co., Ltd. | Blood pressure measuring device |
| CN102754640A (en) * | 2012-07-30 | 2012-10-31 | 李经春 | Rotating disc type electric mosquito heater |
| CN102754640B (en) * | 2012-07-30 | 2014-02-12 | 李经春 | Rotating disc type electric mosquito heater |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8302179D0 (en) | 1983-03-02 |
| GB2114096B (en) | 1986-02-19 |
| ES270087Y (en) | 1984-02-01 |
| FR2520587A1 (en) | 1983-08-05 |
| KR870001311Y1 (en) | 1987-04-03 |
| ES270087U (en) | 1983-07-16 |
| FR2520587B1 (en) | 1987-01-16 |
| JPS6238542Y2 (en) | 1987-10-01 |
| IT8320680V0 (en) | 1983-02-03 |
| KR840001240U (en) | 1984-04-30 |
| JPS58117878U (en) | 1983-08-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PE20 | Patent expired after termination of 20 years |
Effective date: 20030125 |