WO2008071135A1 - Vorrichtung zum kämmen von lamellen von wärmetauscherregistern - Google Patents
Vorrichtung zum kämmen von lamellen von wärmetauscherregistern Download PDFInfo
- Publication number
- WO2008071135A1 WO2008071135A1 PCT/DE2006/002268 DE2006002268W WO2008071135A1 WO 2008071135 A1 WO2008071135 A1 WO 2008071135A1 DE 2006002268 W DE2006002268 W DE 2006002268W WO 2008071135 A1 WO2008071135 A1 WO 2008071135A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- handle
- comb fingers
- comb
- combing
- head part
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/08—Non-rotary, e.g. reciprocated, appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
Definitions
- the invention relates to a device for combing fins of heat exchanger registers in a ventilation system with a longitudinally extending handle for holding the device and a comb finger head having, which is connected to the handle.
- Such a device has become known, for example, as a product of WAECO AirCon Service under the item number 8853 00042.
- the said product is published on the Internet at http://knoll.cdmm.de/katalogdeu-a117-254-478.html.
- the device shown there serves to return bent lamellae of heat exchangers to the originally straight and mutually parallel state by so-called "combing” and has a handle extending in the longitudinal direction for this purpose with a plate-shaped attachment, hereinafter referred to as "head plate" connected.
- the head plate divides into several segments. In each segment comb portions are formed in the edge region of the head plate, which consist of a plurality of comb-like juxtaposed comb fingers.
- comb fingers are arranged at regular intervals.
- the different segments differ from one another with regard to the number, the width and the distance between the comb fingers.
- the various segments disposed at the periphery of the head plate serve to comb heat exchanger registers with different fin pitches.
- the comb fingers of the corresponding matching segment are first introduced between juxtaposed slats and then moved back and forth along the slats, so that possibly bent slats are bent straight again. In this way, the slats are again parallel to each other aligned with a reduced air resistance of the heat exchanger and a better cleanability of the heat exchanger by means of water jets in the wake.
- the original functionality and heat exchanger performance of the heat exchanger is restored in this way.
- the above-mentioned device has the disadvantage that a hand embracing the handle when combing can easily injure the sharp-edged lamella end faces.
- the cleaning of the fins in the edge region of the heat exchanger is not possible, since the head plate abuts before insertion of the comb fingers against a frame of the heat exchanger register, whereby the use of the device is prevented in this area.
- Another disadvantage of the device is the design-related relatively small number of comb fingers per segment, so that each operation only a correspondingly smaller portion of the fins of a heat exchanger register can be detected and combed.
- the bundle of spring steel wires is attached at one end to the handle and is additionally enclosed at the other end by a rectangular sleeve, which forms the spring steel wires into a flat bundle.
- the head part is introduced with its remote from the handle end in the direction of the fins in the heat exchanger, the spring steel wires are forced when hitting the end faces of the slats to align themselves in the slat spaces and to the slats "create The lamellae are combed by moving the device along the lamellae, but insertion of the spring steel wires between the lamellae is only possible if sufficient movement space is available in front of the lamellar end faces, which corresponds at least approximately to twice the length of the device Otherwise, the alignment of the device parallel to the lamellae for inserting the spring steel wires is made difficult or even impossible.
- the use of the known device for combing difficult to access air conditioning systems is therefore not possible
- the disadvantage is that the spring steel wires used for combing easily
- the invention is therefore based on the object to provide a device of the type mentioned above, which allows easy and comfortable combing of such slats, in which only a small space of movement in front of the slats end faces is available, with injuries to a user can be avoided.
- the invention achieves this object in that the head part is fastened to the handle by means of connecting means which are angle-adjustable with respect to the longitudinal direction and are arranged to align the comb fingers of the head piece with respect to the handle in different angular positions.
- the device according to the invention can be flexibly adapted to the respective prevailing requirements via the angle-adjustable connecting means.
- the comb fingers can with their main insertion direction for example, also extend in the longitudinal direction and extend the handle.
- the head part and thus the comb finger carried by this comb finger can be adjusted so that the insertion of the comb fingers between the slats is possible with the utmost security for the user's hand.
- the described advantages are provided according to the invention by the angular adjustment.
- the angle adjustment allows the handle and the tips of the comb fingers arranged parallel to one another to span an arbitrarily selectable angle.
- the adjustable angles can be expediently illustrated by means of an imaginary plane.
- the imaginary plane extends, for example, tangentially to a connection point of the head part to which the head part is connected to the connection means.
- the imaginary plane must be determined in a similar convenient way.
- the angle between the imaginary plane and the handle is hereinafter referred to as ⁇ . If one defines a three-dimensional coordinate system x, y and z, where the axes x and y lie in the imaginary plane, then the angle ⁇ is the angle which the projection of the handle on the imaginary plane spans with the x-axis.
- the inventive angle adjustment detects both the axial angle ⁇ and the radial angle ß. According to the invention, ⁇ varies between 180 degrees and less than 90 degrees.
- the radial angle ⁇ can be within the scope of the invention between 0 and 360 °.
- the connecting means are a different locking positions having angular connection.
- the angular connection allows with their different detent positions the adoption of discrete angular positions.
- the connecting means are a lockable ball joint.
- the , Ball joint allows adjustment of any axial and radial angle of the handle to the headboard. In this way, even with hard to reach slats the greatest flexibility and thus the greatest security against hand injuries is provided.
- fin areas can be combed, which would not be achievable with the aforementioned conventional devices.
- the freely selectable angle adjustment makes it possible to use the device according to the invention even in very confined spaces and a free depth of movement before the register to be cleaned, which is smaller than the length of the device, the maximum length of the device meant in alignment of the handle and the head part is.
- the connecting means on an elongated pin portion allows setting even sharper angles by preventing the head part from hitting the end of the handle to which the connecting means are attached.
- the length of the protruding in the installed state from the handle pin section limits the angular adjustment towards more acute angles. The longer the said pin section, the more acute angles can be adjusted.
- the pin portion may be straight or curved.
- the pin portion is realized arcuately in a different configuration.
- locking means are provided for locking the comb fingers in an angular position.
- the locking means allow easy handling of the device in the selection of the appropriate angle.
- the locking means are designed as a union nut, which is positively connected to a threaded portion of the handle.
- a union nut is particularly suitable in connection with a ball joint, wherein the ball joint by screwing the union nut is firmly clamped on the handle.
- Union nuts are available on the market at low cost.
- the design of the comb fingers is basically arbitrary.
- the comb fingers are designed as straight or curved cylindrical pins, cones or Kammfingeronnen.
- the Kammfingerefficiencyn are disc-shaped and, for example, parallel to each other. In this case, the comb finger discs on a mutually equal distance. Uneven spacings are special forms.
- the comb finger disks are trapezoidal in a side view. Deviating from this, they have the shape of a triangle in the said side view.
- the comb fingers in a side view on a rounded boundary contour. If the comb fingers are also designed as comb finger discs, is in one
- Throats are formed between each two comb finger disks.
- the illustrated structural design of the head part makes it possible to easily insert the comb fingers in an undamaged lamella area and to bring the combing device along the lamellas to the damaged areas.
- the comb fingers can be brought to the insertion of the rear of the bent lamella ends and pulled out with little force using the resulting at the bearing surface between the adjacent non-bent fin ends and comb finger groove fulcrum. This results in a very gentle and easy combing process for the slats, even with very bent slats.
- the head part has a suitable width. Notwithstanding this, the boundary contour of the slats in a side view on their insertion side is not circular rounded, but designed oval or square. This embodiment may also be advantageous in certain applications.
- the comb fingers limit grooves, which have a rounded lamellar application contour.
- the comb fingers When combing, the comb fingers are inserted into the intermediate spaces between the slats that are to be meshed until the slats lie with their end faces against the slat contact contour. Due to the rounded configuration of the lamella abutment contour, the device can then be unrolled in a simple manner on the lamella end faces, wherein the, for example, disc-shaped comb fingers are guided past on a circular path on the flat sides of the lamellae. In this case, bent lamellae are again aligned parallel to the adjacent lamellae.
- the comb fingers protrude with a length of the lamellar application contour, which is sufficient for aligning bent blades.
- a lever effect is provided which is sufficient for bending back bent lamellae without the user having to accept a perceived unpleasant exertion of force.
- the handle has a length of at least 12 cm and a maximum thickness of 4 cm. This dimensioning of the handle has proven to be advantageous in practice. On the one hand, the thickness of the handle is sufficient to provide the necessary mechanical strength, whereby injuries can be largely avoided even in connection with air conditioning systems difficult to access.
- the invention also includes ergonomically useful embodiments of the handle and its grip areas, for example, with non-slip surface design. For each lamellar spacing, a corresponding head part is provided with comb fingers that are suitably designed for this purpose, thereby ensuring optimum and gentle alignment of the lamellae.
- the adjusting means provided according to the invention reduce the space requirement in comparison to the previously known devices. In the context of the invention, it is sufficient if the space in front of the end faces of the slats to be meshed corresponds approximately to half the length of the device.
- FIG. 1 shows an embodiment of the device according to the invention in a plan view
- FIG. 2 shows the embodiment according to FIG. 1 in a different angular position
- FIG. 3 shows the exemplary embodiment according to FIG. 1 in a side view
- FIG. 4 shows the embodiment according to FIG. 3 in a different angular position
- FIG. 5 shows the device according to one of FIGS. 1 to 4 when combing a heat exchange switch register
- FIG. 6 shows a representation for describing the adjustable angles
- Figures 7a and 7b show a further embodiment of the device according to the invention in a side view and in a plan view and
- Figures 7c and 7d show further Aüs entrysbei admir of the device according to the invention in a side view.
- Figure 1 shows an embodiment of the device 1 according to the invention, which has a handle 2 and a comb finger 3 supporting head part 4.
- the head part 4 is connected by connecting means 5 fixed to the handle 2, wherein the connecting means are designed as a ball joint 5, which comprises a ball portion 6 and a pin portion 7.
- the pin portion 7 is provided at its end remote from the handle 2 end with a thread 8, with which this is screwed tightly in the head part 4.
- a union nut 9 which is firmly screwed with a thread 10 of the handle.
- the head part 4 has in the plan view shown an obliquely to the handle extending mounting portion 11 on which the comb fingers 3 are formed.
- the comb fingers 3 are aligned parallel to each other and have a constant distance from each other.
- the comb fingers 3 taper toward the insertion side, so that insertion between the fins of the heat exchanger is facilitated.
- the comb fingers define throats that are adapted to receive the end faces of the fins to be cleaned.
- the comb fingers are inserted so far into the throats of the combs until the end faces of the slats on a Abut slat fitting contour of the mounting portion 11. Due to the chamfered angular position of the head part 4 to the handle 2, the insertion of the comb fingers 3 between the slats of a hard to reach heat exchange register of a ventilation system is facilitated.
- Figure 2 shows the device according to Figure 1, wherein the head part 4 and thus the comb fingers 3 occupy a different angular position in the insertion direction to the handle 2. It can be seen that the head part 4 and the comb fingers 3 extend the handle in its longitudinal direction. In this position, a violation of the user's hand, which includes the handle 2, safely avoided.
- FIG. 3 shows the embodiment according to FIG. 2 in a side view. It can be seen that the boundary contour 12 of the comb fingers 3 extend over a pitch circle. In this way, the insertion of the comb fingers and in particular the combing are facilitated.
- the lamellar application contour 14, formed by the fastening section 11, against which the end faces of the lamellae of the heat exchange register abut when combing, is likewise of rounded design.
- the head part 4 can therefore be rolled virtually at the lamellar end faces, wherein the disc-shaped comb fingers parallel to the side surfaces of the slats sweep a pitch circle.
- the rolling ability provided by the rounded configuration of the lamellar application contour 14 on the lamellar end faces further simplifies the alignment of the lamellae and allows a comfortable combing of the lamellae.
- the comb fingers project beyond the fastening section 11 of the head part 4 at both ends, so that virtually freestanding insertion sides 13 are formed. At these free-standing insertion sides the insertion of the comb fingers 3 between the slats is facilitated, wherein the taper of the comb fingers 3, the alignment of the head part 4 to the Lammellen and the insertion of the comb fingers between the slats facilitates.
- FIG. 4 likewise shows the exemplary embodiment according to FIG. 3 in a side view, wherein the main insertion direction of the comb finger 3, which substantially coincides with the longitudinal direction of the pin section 7, spans a different angle with respect to the longitudinal direction of the handle. In this way, the comb fingers can be inserted between hard to reach slats.
- Figure 5 shows the apparatus of Figures 1-4 when combing a heat exchange register 16. It can be seen that the comb fingers 3 are inserted into spaces bounded by fins 15 of the heat exchange register. The slats themselves are bounded to the outside by an unspecified frame. It can be seen that due to the appropriate shape of the head portion and a proper adjustment of the radial angle ß and fins 15 in the edge region of the heat exchange register are easily accessible and can be combed.
- Figure 6 illustrates the present invention adjustable angle.
- a plane is drawn, which extends tangentially to the connection point of the connecting means, here the ball joint 5, on the head part.
- a three-dimensional coordinate system x, y, z is drawn, with the z-axis extending out of the drawn-in plane in the direction of view. It is therefore only indicated by a circle.
- the origin of the three-dimensional coordinate system lies in said connection point.
- the radial angle ⁇ is defined in the illustrated embodiment as an angle between the x-axis of the coordinate system and the projection of the handle 2 on the plotted plane.
- the also adjustable axial angle ⁇ is the angle that the handle 2 spans with respect to the connection point with the said plane. Deviating from this, the axial angle as the angle of the handle with the Z axis with respect to the coordinate origin and the z-axis are defined.
- Figure 7a shows a further embodiment of the device 1 according to the invention in a side view. It can be seen that the comb fingers 3 are designed trapezoidal in the view shown.
- FIG. 7b illustrates the device of FIG. 7a in a plan view, in which it is possible to look into the grooves 14 delimited by the comb fingers.
- FIGS. 7c and 7d again show a side view of further exemplary embodiments of the device 1 according to the invention.
- the comb fingers 3 are of rectangular or stub-shaped or cylindrical design here. Both the trapezoidal configuration and the rectangular configuration enables a more cost-effective production of the device 1.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2006/002268 WO2008071135A1 (de) | 2006-12-14 | 2006-12-14 | Vorrichtung zum kämmen von lamellen von wärmetauscherregistern |
DE112006004178T DE112006004178A5 (de) | 2006-12-14 | 2006-12-14 | Vorrichtung zum Kämmen von Lammellen von Wärmetauscherregistern |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2006/002268 WO2008071135A1 (de) | 2006-12-14 | 2006-12-14 | Vorrichtung zum kämmen von lamellen von wärmetauscherregistern |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008071135A1 true WO2008071135A1 (de) | 2008-06-19 |
Family
ID=38434854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2006/002268 WO2008071135A1 (de) | 2006-12-14 | 2006-12-14 | Vorrichtung zum kämmen von lamellen von wärmetauscherregistern |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112006004178A5 (de) |
WO (1) | WO2008071135A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106862308A (zh) * | 2017-03-27 | 2017-06-20 | 郑州科技学院 | 一种汽车凹陷修复套装 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1171738A (en) * | 1914-02-09 | 1916-02-15 | Francois Mallet | Scraper. |
US2487696A (en) * | 1947-12-06 | 1949-11-08 | Coffing Hoist Company | Combination tool and handle |
US2607249A (en) * | 1950-01-04 | 1952-08-19 | James W Johnston | Pliers for straightening radiator fins |
US2618185A (en) * | 1951-07-19 | 1952-11-18 | Harry B Fechter | Material straightening tool |
US2895358A (en) * | 1957-10-23 | 1959-07-21 | Christ L Johnson | Radiator fin repair tool |
US3531975A (en) * | 1968-08-22 | 1970-10-06 | Gen Walter Ace Lance | Heat exchanger fin straightening device |
US4018076A (en) * | 1976-06-11 | 1977-04-19 | Wagner Stuart J | Fin comb with interchangeable heads |
-
2006
- 2006-12-14 DE DE112006004178T patent/DE112006004178A5/de not_active Withdrawn
- 2006-12-14 WO PCT/DE2006/002268 patent/WO2008071135A1/de active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1171738A (en) * | 1914-02-09 | 1916-02-15 | Francois Mallet | Scraper. |
US2487696A (en) * | 1947-12-06 | 1949-11-08 | Coffing Hoist Company | Combination tool and handle |
US2607249A (en) * | 1950-01-04 | 1952-08-19 | James W Johnston | Pliers for straightening radiator fins |
US2618185A (en) * | 1951-07-19 | 1952-11-18 | Harry B Fechter | Material straightening tool |
US2895358A (en) * | 1957-10-23 | 1959-07-21 | Christ L Johnson | Radiator fin repair tool |
US3531975A (en) * | 1968-08-22 | 1970-10-06 | Gen Walter Ace Lance | Heat exchanger fin straightening device |
US4018076A (en) * | 1976-06-11 | 1977-04-19 | Wagner Stuart J | Fin comb with interchangeable heads |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106862308A (zh) * | 2017-03-27 | 2017-06-20 | 郑州科技学院 | 一种汽车凹陷修复套装 |
CN106862308B (zh) * | 2017-03-27 | 2018-12-28 | 郑州科技学院 | 一种汽车凹陷修复套装 |
Also Published As
Publication number | Publication date |
---|---|
DE112006004178A5 (de) | 2009-09-24 |
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