PELT BOARD
20170051368 ยท 2017-02-23
Inventors
Cpc classification
International classification
Abstract
A pelt board for drying of tubular pelts has a tip end from which the pelt is drawn onto the pelt board and a foot end. The pelt board has at least one inlet and an air conducting arrangement that includes openings in broad side surfaces connected to the inlet. At least one of the broad side surfaces within at least a holding area is provided with protrusions, which are arranged in a staggered manner in the longitudinal direction of the pelt board so as to deflect the air flow between the broad side surfaces and a tubular pelt arranged on the pelt board from a flow path parallel to the longitudinal direction of the pelt board. The holding area is positioned in the half part of the pelt board nearest the foot end and extends at least 25 or 30 cm in the longitudinal direction of the pelt board.
Claims
1. Pelt board for drying of tubular pelts, the pelt board having a tip end from which the pelt is drawn onto the pelt board and a foot end, the pelt board comprising two broad side surfaces each extending in the longitudinal direction of the pelt board, the pelt board having at least one inlet for receiving a flow of air and an air conducting arrangement including openings in said broad side surfaces of the pelt board connected to said inlet for providing an air flow between the broad side surfaces and a pelt arranged on the pelt board, wherein at least one of the broad side surfaces within at least a holding area are provided with a plurality of protrusions, the protrusions being arranged in a staggered manner in the longitudinal direction of the pelt board so as to deflect said air flow between the broad side surfaces and a tubular pelt arranged on the pelt board from a flow path parallel to the longitudinal direction of the pelt board, wherein said holding area is positioned in the half part of the pelt board nearest the foot end thereof and extends at least 25 cm, preferably at least 30 cm in the longitudinal direction of the pelt board.
2. Pelt board according to claim 1, wherein both of the broad side surfaces are provided with such plurality of protrusions.
3. Pelt board according to claim 1, wherein flow paths parallel to the longitudinal direction of the pelt board between said protrusions within said holding area and with a length of more than 10 centimetres in the longitudinal direction of the pelt board do not constitute more than 25%, preferably no more than 20% of the cross-sectional circumference of the pelt board at the holding area.
4. Pelt board according to claim 1, wherein the height of said protrusions are in the range of 0.75 to 5 millimetres, preferably in the range of 1 to 3 millimetres.
5. Pelt board according to claim 1 comprising two half parts each defining one of said broad side surfaces.
6. Pelt board according to claim 1, wherein the outer contour of the two broad side surfaces constitutes at least 75%, preferably at least 80% of the cross-sectional circumference of the pelt board at the holding area.
7. Pelt board according to claim 1, wherein the cross-sectional circumference of the pelt board at the holding area is in the range of 220 to 240 millimetres.
8. Pelt board according to claim 1, wherein the cross-sectional circumference of the pelt board at the holding area is in the range of 242 to 260 millimetres.
9. Pelt board according to claim 7, the length of which from the tip end to the foot end thereof is in the range of 120 to 160 centimetres, preferably in the range of 125 to 155 centimetres.
10. Pelt board according to claim 1, wherein the cross-sectional circumference of the pelt board at the holding area is in the range of 180 to 200 millimetres.
11. Pelt board according to claim 10, the length of which from the tip end to the foot end thereof is in the range of 100 to 130 centimetres, preferably in the range of 105 to 120 centimetres.
12. Pelt board according to claim 1, wherein the cross-sectional circumference of the pelt board at the holding area is in the range of 380 to 400 millimetres.
13. Pelt board according to claim 12, the length of which from the tip end to the foot end thereof is in the range of 170 to 200 centimetres.
14. Pelt board according to claim 1, comprising expansion means for selectively shifting the pelt board between an expanded position and a non-expanded position in which the outer cross-sectional circumference of the pelt board is reduced as compared to the expanded position.
15. Pelt board according to claim 14, wherein the outer cross-sectional circumference of the pelt board is reduced in the range of 3 to 20 millimetres when the expansion means are in the non-expanded position of the expansion means, preferably in the range of 5 to 15 millimetres.
16. Pelt board according to claim 1 and comprising an element projecting from the foot end of the pelt board, the projecting element having one of said inlets for receiving a flow of air.
17. Method for drying tubular pelts comprising: providing a pelt board according to claim 1, and setting the skin side facing towards the pelt board.
18. Method for drying tubular pelts according to claim 17, wherein the pelt is stretched in a longitudinal direction of the pelt board towards the foot end of the pelt board and fixing means are applied to the fur side of the pelt at a position of the holding area so as to fix the pelt to the pelt board.
19. Method for drying tubular pelts according to claim 17, wherein said pelts are mink pelts, in particular male mink pelts.
20. Pelt board according to claim 8, the length of which from the tip end to the foot end thereof is in the range of 120 to 160 centimetres, preferably in the range of 125 to 155 centimetres.
Description
BRIEF DESCRIPTION OF THE FIGURES
[0034] Aspects of the present disclosure will be described in the following with reference to the Figures in which:
[0035]
[0036]
[0037]
[0038]
[0039]
[0040]
[0041]
[0042]
[0043]
[0044]
[0045]
DETAILED DESCRIPTION OF THE INVENTION
[0046]
[0047] The pelt board 1 comprises two half parts 4, 5 (half part 4 is illustrated in
[0048] The longitudinal extend L4 of the holding area is indicated on
[0049] A cross-section of the pelt board 1 at the holding area is shown in
[0050] The half parts 4, 5 provides an internal cavity 6 for distributing drying air internally in the pelt board 1 between the half parts 4, 5, see
[0051] The half parts 4, 5 may be both be of a convex shape and being symmetrical about both first and second planes P1, P2 as is known in the prior art. The half parts 4, 5 are in preferred embodiments of the invention as shown in the drawings substantially symmetric around at least the second centre plane P2, but the half parts 4, 5 are not symmetric around the first centre plane P1 of the pelt board 1.
[0052] One of the half parts 4 has as shown in
[0053] In preferred embodiments of the invention, both half parts 4, 5 as illustrated in
[0054] A plurality of ventilation openings 7 for providing a flow of drying air between the internal cavity 6 and the outer surface of the half parts 4, 5 are provided in the half parts 4, 5, see
[0055] The pelt board 1 moreover comprises a distension system configured to reduce or increase the circumference of the pelt board dependent on the setting of the distension system. In the present example, the distension system comprises two longitudinal parts 10a, 10b extending along the longitudinal edges 11a, 1 lb of the pelt board.
[0056] As illustrated in
[0057] The longitudinal parts 10a, 10b can be operated in order to increase the overall circumference of the pelt board, in the present example by moving the longitudinal parts towards or and away from the second plane P2. When the longitudinal parts 10a, 10b have been arranged in an expanded position (as illustrated in
[0058] The moving of the longitudinal parts 10a, 10b at the longitudinal edges 11a, 11b of the pelt board 1 is preferably provided by moving the longitudinal parts 10a, 10b in the first plane P1.
[0059] In other embodiments of the invention (not illustrated), the distension system of the pelt board may be arranged to move the half parts 4, 5 towards and away from each other, e.g. as disclosed in WO 2005/026394 A1 so as to alter the circumference of the pelt board 1.
[0060] As illustrated in
[0061] The guiding recess 8 extends substantially from the tapered end/tip end 3 of the pelt board 1 in a direction towards the foot end 2. The guiding recess 8 ends substantially at a drying air supply opening 9 to the internal cavity 6. The guiding recess 8 is arranged so that a pipe or the like can extend in between a pelt on the pelt board 1 (described in more details later on) from the tapered end, and thus provide drying air into, or extract drying air from, the internal cavity 6 through the drying air supply opening 9.
[0062] In preferred embodiments of the invention, the drying air supply opening 9 extends in a substantially transverse direction compared to the longitudinal axis of the pelt board.
[0063] In advantageous embodiments of the invention, the length L1 of the guiding recess 8 is no more than of the length L2 of the pelt board 1 such as no more than 1/10 of the length of the pelt board, e.g. no more than 1/15 of the length of the pelt board, e.g. about 1/20 of the length of the pelt board.
[0064] In advantageous embodiments of the present invention, the drying air supply opening 9 at the tapered end part 3 is oblong and extends in the longitudinal direction LD of said pelt board 1. In the present example, the longitudinal has a wedge shape and tapers towards the tip end of the pelt board. However, it may also be rectangular or oval-shaped. The length L3 of the opening 9 may be between 1.5 cm and 20 cm such as between 2 cm and 10 cm, e.g. between 2.5 and 6 cm. The width off the opening may be between 0.5 and 5 cm such as between 0.5 and 3 cm, e.g. about 1 cm or 2 cm.
[0065]
[0066] The distension system comprises the longitudinal parts 10a, 10b which are configured to be operated in order to increase or decrease the overall circumference of the pelt board 1. Moreover, the distension system comprises a longitudinal member 10c in the internal cavity 6 between the half parts 4, 5, extending in the longitudinal direction LD of the pelt board 1. The longitudinal member 10c is arranged between the longitudinal parts 10a, 10b, and when the longitudinal member 10c is displaced in the longitudinal direction LD of the pelt board 1, the longitudinal parts 10a, 10b are is displaced relative to the half parts 4, 5 in a direction away or towards the second plane P2, see
[0067] This may be provided by the longitudinal member 10c comprising a plurality of wedge-shaped elements 16 configured to fit into recesses 17 in the longitudinal parts 10a, 10b as described in more details in connection to
[0068] As can be seen from
[0069]
[0070] The longitudinal member 10c comprises a lower part 19 extending in the longitudinal direction LD of the pelt board from the foot end 2 of the pelt board. This part provides a part that can be operated in order to provide the displacement of the longitudinal member 10c.
[0071] The longitudinal member 10c may in embodiments of the invention comprises a lowest wedge shaped element 16a near the lower part 19. This element 16a is configured to block the foot end 2 of the pelt board 1 so that air is substantially only supplied at the channel 20 and thus e.g. guided more efficiently inside the pelt board in the cavity 6.
[0072] Moreover, the longitudinal member 10c may on embodiments of the invention comprise a channel 20 for guiding drying air from a drying aggregate at the foot end 2 to the internal cavity 6 in the pelt board 1. The drying aggregate (not illustrated) may comprise a top plate with openings for receiving the lower part 19 and be configured to provide drying air to the cavity 6 at the foot end 2 of the pelt board 1 when the pelt board 1 is arranged vertically in the drying aggregate 1. The drying aggregate may comprise a blowing unit for providing an air flow through the said top plate.
[0073]
[0074]
[0075]
[0076]
[0077] The guiding recess 8 extends from the tapered end/tip end 3 of the pelt board 1 and of the invention comprise one or more ventilation openings 7 in the guiding recess surface 21 for supporting an air exchange part 40.
[0078] The internal cavity 6 extends in between the wall 22 providing the guiding recess surface 21 in the half part 4 and the other half part 5.
[0079] The guiding recess 8 is configured to receive an air exchange part 40 for exchanging air in the internal cavity 6 of the pelt board 1 as illustrated in
[0080] The air exchange part 40 thus extends in the longitudinal direction LD of the pelt board 1 and is thus able to blow drying air into the internal cavity 6 through the Drying air supply opening 9.
[0081] The drying air supply opening 9 extends in embodiments of the invention between the recessed surface 21 of the guiding recess 8 and an upper, elevated edge 12 of the half part 4 comprising the guiding recess 8, see also
[0082] The guiding recess 8 ends substantially at the drying air supply opening 9 to the internal cavity 6.
[0083] A blowing (or suction) unit 41 can thus be connected to the air exchange part 40 and thus provide a flow of drying air from the exterior of the pelt board 1, through the air exchange part into the cavity 6 where the air is distributed to the ventilation openings 7, or alternatively sucked into the cavity 6 from the ventilation openings.
[0084] In preferred embodiments of the invention, the drying air is blown into the cavity 6 by means of a blowing unit 41, e.g. comprising an electrical motor and a fan for being driven by the electrical motor) for providing a flow of air into the cavity.
[0085]
[0086] The pelt board 1 may preferably taper towards the tapered end 3 by the edges 11a, 11b tapering towards the centre plane P2. Also, it is preferred that at least one, or both of the broad surfaces comprising the protrusions 13 may taper towards the tapered towards the first plane 1 defined by the edges 11a, 11b.
[0087]
[0088]
[0089] The drying system includes a pelt board 1 according to embodiments of the invention, and a holding device 50. The holding device comprises the air exchange part 40 as previously explained, in the form of an air supply pipe for extending into the guiding recess 8 of the pelt board 1.
[0090] Moreover, the holding device 50 comprises a holding arrangement 51, preferably in the form of a clamp or the like. The holding arrangement 51 is configured to provide a holding function when the air exchange part 40 extends into the guiding recess 8.
[0091] Preferably, the holding arrangement 51 includes a resiliently arranged clamp for providing a holding force towards the air exchange part 40 when displaced away from the air exchange part 40.
[0092] The clamp may thus be arranged at the outside of the pelt 30 when the air exchange part 40 extends into the guiding recess, and thereby provide a holding force Fl so that the pelt board 1 hangs freely from the holding device 50.
[0093] Preferably the pelt board is arranged between the holding arrangement 51 and the air exchange part so that the holding arrangement provides the force towards a half part not comprising the guiding recess into which the air exchange part extends.
LIST
[0094] 1 Pelt board
[0095] 1a Cross-sectional outer contour of the pelt board
[0096] 2 Foot end of pelt board
[0097] 3 Tapered end/tip end of pelt board
[0098] 4, 5 Half parts of pelt board
[0099] 4a, 5a Outer surfaces of broad side surfaces
[0100] 4b, 5b Outer contour of broad side surfaces
[0101] 6 Internal cavity for distributing drying air internally in said pelt board
[0102] 7 Ventilation openings in half parts
[0103] 8 Guiding recess at tapered end/tip end of pelt board
[0104] 9 Drying air supply opening at tip end/tapered end part of pelt board
[0105] 10 Distension system
[0106] 10a, 10b Longitudinal parts of distension system at longitudinal edges of pelt board
[0107] 10c Longitudinal member of distension system arranged in the internal cavity of pelt board
[0108] 11a, 11b Longitudinal edges of pelt board
[0109] 12 Upper, elevated edge
[0110] 13 Protrusions at outer surface of half parts for supporting tubular pelt/fur
[0111] 14a, 15a Hollow at each half part
[0112] 16, 16a Wedge-shaped elements at longitudinal member of distension system
[0113] 17 Recesses in longitudinal parts of distension system for receiving wedge shaped elements
[0114] 18 Opposing surfaces comprising wedge shaped elements.
[0115] 19 Lower part of longitudinal member extending from foot end of pelt board
[0116] 20 Channel in longitudinal member for guiding drying air into internal cavity
[0117] 21 Guiding recess surface
[0118] 22 Wall providing guiding recess surface
[0119] 23 Upper surface extending at each side of guiding recess
[0120] 24 Further drying air supply opening at foot end
[0121] 25 Lower end surface of the pelt board
[0122] 30 Tubular fur on pelt board
[0123] 40 Air exchange part
[0124] 41 Air supply unit for generating flow of drying air
[0125] 50 Holding device
[0126] 51 Holding arrangement of holding device
[0127] h Height of vertex of convex side surface
[0128] LD Longitudinal direction of pelt board
[0129] L1 Length of the guiding recess
[0130] L2 Length of pelt board
[0131] L3 Length of opening
[0132] L4 Length of holding area
[0133] P1 First plane of pelt board
[0134] P2 Second plane of pelt board
[0135] W1 Width of linear side surface of pelt board
[0136] W2 Width of convex side surface of pelt board