CN210194279U - Carpet iron - Google Patents
Carpet iron Download PDFInfo
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- CN210194279U CN210194279U CN201822162333.0U CN201822162333U CN210194279U CN 210194279 U CN210194279 U CN 210194279U CN 201822162333 U CN201822162333 U CN 201822162333U CN 210194279 U CN210194279 U CN 210194279U
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- carpet
- carpet iron
- iron
- heating element
- heating
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Abstract
A carpet iron comprising: a support structure; an elongated base plate of thermally conductive material mounted on a support structure, the base plate having opposite ends and opposite sides, the opposite ends defining leading and trailing ends as the carpet iron is moved back and forth during normal operation; at least two heating circuits arranged on the base plate and configured to heat at least two corresponding blocks terminated at corresponding said ends, each heating circuit comprising: at least one heating element; a temperature sensor operatively arranged with respect to the base plate to sense a temperature of a block of the heating circuit; and a controller operatively connected to the at least one heating element and the temperature sensor to control operation of the at least one heating element upon receiving a signal from the temperature sensor; a processor connected to each controller for controlling the operation of the controller; and a rechargeable power supply for supplying power to the or each heating element.
Description
Technical Field
Various embodiments of a carpet iron are described herein.
Background
U.S. patent No. 5,384,001 to hopengadrner discloses a carpet iron for joining two carpets with hot melt carpet seam tape. A problem with the carpet iron disclosed by US5,384,001 is that the carpet iron may be powered by an electric cord electrically connected to the mains. The power cord may interfere with the connection of the two carpets. A problem with the carpet iron disclosed in US5,384,001 is that the carpet iron may have a single heating circuit and a single heating zone. A problem with the carpet iron disclosed by US5,384,001 is that the carpet iron may not know its speed and direction. The carpet iron disclosed in US5,384,001 may lack the required heating control. A problem with the carpet iron disclosed in US5,384,001 is that the carpet iron may not have means for guiding the movement in use.
Disclosure of Invention
A carpet iron comprising:
a support structure;
an elongated base plate of thermally conductive material mounted on a support structure, the base plate having opposite ends and opposite sides, the opposite ends defining leading and trailing ends as the carpet iron is moved back and forth during normal operation;
at least two heating circuits arranged on the base plate and configured to heat at least two corresponding blocks terminated at corresponding said ends, each heating circuit comprising:
at least one heating element;
a temperature sensor operatively arranged with respect to the base plate to sense a temperature of a block of the heating circuit; and
a controller operatively connected to the at least one heating element and the temperature sensor to control operation of the at least one heating element upon receiving a signal from the temperature sensor;
a processor connected to each controller for controlling the operation of the controller; and
a rechargeable power supply for supplying power to the or each heating element.
The temperature sensor may be a thermistor. Each heating element may comprise several power resistors. The carpet iron may include an accelerometer operatively connected to the processor, configured to generate a signal when the carpet iron is moved and to transmit the signal to the processor, the processor being configured to interpret the signal in order to determine the speed and direction of the carpet iron.
The processor may be configured to control the operation of the respective controllers so that the heating elements of the zone leading the or each other zone are supplied with more power than the remaining heating elements.
The processor may be configured to control the operation of the respective controller such that the supply of power to the respective heating element may be adjusted in dependence on the speed of movement of the carpet iron.
The support structure may comprise a housing containing the or each controller and processor. The enclosure may include a central portion extending generally orthogonally with respect to the base plate and two opposing handles disposed on the central portion, the handles being configured such that an operator may grasp either of the handles.
The rechargeable power supply may be a rechargeable battery removably mounted on the housing.
The carpet iron may comprise at least one laser pointer mounted on the support structure, which is directed to direct the laser beam in a direction substantially corresponding to the direction of movement during said normal operation of the carpet iron.
Drawings
Fig. 1 shows a side view of an embodiment of a carpet iron.
Fig. 2 shows a side view of another embodiment of a carpet iron.
Fig. 3 shows a three-dimensional view of another embodiment of a carpet iron.
Fig. 4 shows an end view of the carpet iron of fig. 3.
Fig. 5 shows a lower plan view of the carpet iron of fig. 3.
Fig. 6 shows a schematic layout of a heating block corresponding to a soleplate of a carpet iron.
Fig. 7 shows an arrangement of power resistors on the inner surface of the back plane.
Fig. 8 shows an example of a heating circuit of a carpet iron.
Fig. 9 shows another example of a heating circuit of a carpet iron.
Detailed Description
In fig. 1, reference numeral 10 generally designates an example of a carpet iron.
The carpet iron 10 includes a support structure having a housing 12. The base plate 14 is mounted on a support structure and has opposite ends 16 and opposite sides 18. In use, the carpet iron 10 is moved back and forth along a line extending between the ends 16. The base plate 14 is made of a thermally conductive material (such as metal) that can be electrically heated. Thus, the sole plate 14 may be made of metal conventionally used for carpet irons.
The end 16 of the base plate 14 operably terminates the upwardly curved end portion of the base plate 14. This facilitates movement of the carpet iron 10 without snagging on the carpet.
The housing 12 includes a base portion 20 that covers the inner surface of the bottom panel 14. A central portion 22 of the housing 12 extends from the base portion 20. Two elongate handles 24 are mounted on the central portion 22 and extend in opposite directions from the central portion 22 and generally parallel to the line extending between the ends 16. Thus, it is convenient to manipulate the carpet iron 10 from either end of the carpet iron 10.
A power switch 26 is disposed on each handle 24 at the intersection of each handle 24 and the central portion 22.
A rechargeable power supply in the form of a rechargeable battery 28 is removably mounted on the central portion 22. A display 30 is mounted in the housing 12 so that an operator can determine the operating characteristics of the carpet iron 10.
A laser pointer 32 is positioned at the end of each handle 24 such that the laser beam emitted by the pointer 32 extends generally parallel to the line extending between the ends 16.
In fig. 2, reference numeral 40 generally designates another embodiment of a carpet iron. With reference to the previous drawings, like reference numerals refer to like parts, unless otherwise indicated.
The housing 12 of the carpet iron 40 includes a support portion 42 extending between the base portion 20 and a corresponding end of the handle 24 to provide additional support to the handle 24.
In fig. 3 to 5, reference numeral 100 generally indicates another embodiment of a carpet iron. With reference to the previous drawings, like reference numerals refer to like parts, unless otherwise indicated.
As with the previous embodiment, the carpet iron 100 includes a base portion 20 that covers the inner surface of the sole plate 102. The base plate 102 defines a series of longitudinally extending ridges 104.
As shown in fig. 5, the ridge 104 is divided into four sections 106, said sections 106 having the form of two end sections 106.1 and two intermediate sections 106.2, wherein three channels 108 extending transversely through the ridge 104 delimit the sections 106. Each section 106 corresponds to an associated heating block, which will be described later.
Fig. 6 shows the general layout of the heating block 50 on the base plate 14, 102. The base plate 14, 102 comprises four heating blocks in the form of two end blocks 50.1 and two intermediate blocks 50.2 terminating at respective ends 16. The blocks 50 are positioned side-by-side and extend between the ends 16.
The carpet iron 10, 40, 100 comprises four heating circuits, one for each tile 50, each heating circuit being independently operable with respect to the others.
Each heating circuit includes a number of heating elements and a temperature sensor. In this example, each heating circuit includes eight power resistors 52 and one thermistor 54.
Fig. 7 shows a possible arrangement of the power resistor 52.
In fig. 8, reference numeral 60 generally indicates one example of a heating and control circuit for the carpet iron 10, 40, 100. With reference to the previous drawings, like reference numerals refer to like parts, unless otherwise indicated. In this example, a heating element 62 is disposed in each block 52 to heat the block when energized. A thermal sensor in the form of a thermistor 64 is also located in each block 52 to generate a signal related to the temperature of the block 52.
The circuit 60 includes four block controllers 66 associated with the corresponding blocks 50. Each block controller 66 is connected to the heating elements 62 and thermistors 64 of the associated block 50. Each block controller 66 is configured to energize the associated heating element 62 and receive signals related to the temperature of the block 50.
The circuit 60 includes a processor 68 for setting the temperature of each block 50. The processor 68 may be configured to control the heating element 62 by the controller 66 in various ways. For example, the processor 68 may be configured to control the heating elements 62 such that each zone 50 is independently heated. Thus, the end block 50.1 can be heated more than the middle block 50.2.
The processor 68 is connected to the controller 66 to communicate with the controller 66 using the PWM signals.
The rechargeable battery 28 is connected to the controller 66 by an on/off switch 70. The switch 70 may be connected to or may be the power switch 26.
In fig. 9, reference numeral 80 generally indicates one example of a heating and control circuit for the carpet iron 10, 40, 100. With reference to the previous drawings, like reference numerals refer to like parts, unless otherwise indicated.
The circuit 80 includes an accelerometer 82. The accelerometer 82 may be housed in the housing 12. The accelerometer 82 is configured to generate a signal corresponding to the direction and acceleration of the carpet iron 10, 40, 100. An accelerometer 82 is operatively connected to the processor 68.
The processor 68 is configured to energize the heating element 62 to an extent proportional to the speed of movement of the carpet iron 10, 40, 100 in use.
The processor 68 may also be configured to energize the heating element 62 associated with one of the end blocks 50.1 defining the leading block during movement of the carpet iron 10, 40, 100 more than the other heating elements 62. The reason for this is that the leading tile 50 needs to give the maximum amount of thermal energy compared to the other tiles, since the leading tile 50 will contact the seam tape (sealing tape) of the carpet before the other tiles. Other blocks will need to give successively less energy, with the trailing block needing to give the least energy. It will be appreciated that this may result in less energy consumption than if all the zones or the entire soleplate were heated to the same extent.
The circuit 80 includes a tilt sensor 84. The tilt sensor 84 may be housed in the housing 12. The tilt sensor 84 is configured to generate a cut-off signal for the processor 68 to receive when the carpet iron 10, 40, 100 is tilted from its operating position by a predetermined degree. For example, the tilt sensor 84 is configured to generate a cut-off signal when the carpet iron 10, 40, 100 is tilted more than 45 degrees from vertical.
The processor 68 is configured to determine the heat load on the backplane 14 through the thermistor 64 and the block controller 66. The processor 68 may be configured to limit the power supplied to the heating element 62 to conserve energy when little or no heat load is detected.
One feature of the carpet iron 10, 40, 100 is that it includes a rechargeable battery 28. Therefore, the carpet iron 10, 40, 100 can be conveniently used without a burden of an electric wire connected to the carpet iron 10, 40, 100. As a result, the carpet iron 10, 40, 100 may be used at locations where a supply of power is not readily available. Furthermore, the handling of the carpet iron 10, 40, 100 is more flexible than other carpet irons which need to be connected to a power supply device during operation.
The inventor(s) must determine the characteristics of the rechargeable battery suitable for heating the soleplate 14, 102 to a sufficient extent to perform the necessary carpet ironing function. For backplanes 14, 102 having similar characteristics to existing backplanes, it has been found that the backplane 14 requires between approximately 100W and 200W of power. For example, the rechargeable battery 28 may be in the form of a battery pack having an operating voltage of approximately 18V and capable of a minimum instantaneous supply power of approximately 120W to 160W.
The back plane 14, 102 may be an aluminum plate and the power resistor 52 and the thermistor 54 may be mounted directly to the back plane 14, 102.
The base plate 14, 102 has a length of 250mm, a width of 75mm and a thickness of 1.2 mm. The backplane is divided into four blocks 50 carrying a total of forty power resistors 52 and four thermistors 54. Each block 50 has ten resistors 52 and one thermistor 54. The thermistor 54 is a Negative Temperature Coefficient (NTC) thermistor.
It will be readily appreciated that any number of resistors and thermistors may be placed on the board 14 depending on the requirements.
Each resistor 52 is a 33 ohm resistor and is rated for a power dissipation of 10W. For this reason, the battery 28 should be capable of a peak discharge of approximately 22A at 18V. To allow for the rating of the resistor 52, this translates to an instantaneous power of 400W. For an operating time of 30 minutes, the battery 28 has a capacity of at least 3600 mAh.
The temperature setting indicated at 86 in fig. 5 may be in the form of a switch or dial that can apply several different heating modes to the soleplate 14, 102.
As mentioned before, the handling of the carpet iron 10, 40, 100 is more flexible than a conventional carpet iron connected to the power supply by means of a cable. However, in order to achieve a carpet iron 10, 40, 100 with characteristics sufficient to perform a proper carpet ironing operation, including melting the seam tape of the carpet, the power consumption must be adjusted to optimize battery life. This is achieved by independently controlling the heating of each block 50, as described above. Using such independent control may result in a system in which the leading tile is heated to a greater extent than the trailing tile. Thus, energy is saved by not heating those blocks not associated with melting the seam tape. As described above, the use of an accelerometer allows for selective heating of individual zones or sections 106 depending on the direction and speed of movement of the carpet iron 10, 40, 100.
The claims below should be considered as being incorporated into the foregoing description.
The use of common reference signs is not intended to limit the scope of the claims. Furthermore, such use of common reference numerals should not be understood to exclude the possibility of interchanging components between the various embodiments of the carpet iron described herein where feasible.
Where the context allows throughout the specification (including the claims), the term "comprise" and its variants should be construed to include one or more integers stated but not necessarily to exclude any other integer.
It is to be understood that the terminology used is for the purpose of description and should not be regarded as limiting. The described embodiments are intended to illustrate the invention, not to limit its scope. The invention may be practiced with various modifications and additions that will readily occur to those skilled in the art.
When any number or range is described herein, the number or range is approximate, unless explicitly stated otherwise. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value and each separate sub-range defined by such separate values is incorporated into the specification as if it were individually recited herein.
Words indicating directions or orientations (e.g., "front," "rear," "back," etc.) are used for convenience. The inventors contemplate that the various embodiments may be used in a non-operational configuration, such as when presented for sale. Accordingly, such terms are to be considered as illustrative and not restrictive.
Claims (11)
1. A carpet iron, comprising:
a support structure;
an elongated base plate of thermally conductive material mounted on a support structure, the base plate having opposite ends and opposite sides, the opposite ends defining leading and trailing ends as the carpet iron is moved back and forth during normal operation;
at least two heating circuits arranged on the base plate and configured to heat at least two corresponding blocks terminated at corresponding said ends, each heating circuit comprising:
at least one heating element;
a temperature sensor operatively arranged with respect to the base plate to sense a temperature of a block of the heating circuit; and
a controller operatively connected to the at least one heating element and the temperature sensor to control operation of the at least one heating element upon receiving a signal from the temperature sensor;
a processor connected to each controller for controlling the operation of the controller; and
a rechargeable power supply for supplying power to the or each heating element.
2. The carpet iron of claim 1, wherein the temperature sensor is a thermistor.
3. The carpet iron of claim 1, wherein each heating element comprises a number of power resistors.
4. The carpet iron of claim 1, comprising an accelerometer operatively connected to the processor, the accelerometer configured to generate a signal when the carpet iron is moved and to transmit the signal to the processor, the processor configured to interpret the signal in order to determine the speed and direction of the carpet iron.
5. The carpet iron of claim 4, wherein the processor is configured to control the operation of the respective controllers such that the heating element of the zone leading the or each other zone is supplied with more power than the remaining heating elements.
6. The carpet iron of claim 4, wherein the processor is configured to control the operation of the respective controller such that the power supply to the respective heating element can be adjusted according to the speed of movement of the carpet iron.
7. A carpet iron according to claim 1 wherein the support structure includes a housing containing the or each controller and processor.
8. The carpet iron of claim 7, wherein the housing includes a central portion extending generally orthogonally with respect to the sole plate and two opposing handles disposed on the central portion, the handles being configured such that an operator can grasp either of the handles.
9. The carpet iron of claim 8, wherein the rechargeable power supply is a rechargeable battery removably mounted on the housing.
10. The carpet iron of claim 1, comprising at least one laser pointer mounted on a support structure, the laser pointer being directed at the front of the carpet iron
The laser beam is directed during normal operation in a direction corresponding to the direction of movement.
11. The carpet iron of claim 1, wherein the distal end of the sole plate is operatively bent upward.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2017905195 | 2017-12-23 | ||
| AU2017905195A AU2017905195A0 (en) | 2017-12-23 | A Carpet Iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210194279U true CN210194279U (en) | 2020-03-27 |
Family
ID=63207414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822162333.0U Active CN210194279U (en) | 2017-12-23 | 2018-12-23 | Carpet iron |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210194279U (en) |
| AU (1) | AU2018101025A4 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4076908A4 (en) * | 2019-12-18 | 2023-12-20 | Cordless Carpet Tools Pty Ltd | A carpet seaming iron |
-
2018
- 2018-07-24 AU AU2018101025A patent/AU2018101025A4/en active Active
- 2018-12-23 CN CN201822162333.0U patent/CN210194279U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| AU2018101025A4 (en) | 2018-08-23 |
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| GR01 | Patent grant | ||
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