Coffee Bean Roaster

Abstract

To provide a coffee bean roaster which can be easily and compactly folded without performing a decomposition process of a supporting frame or the like while self-standing at four points and thereby excellent in equilibrium stability and can perform efficient roasting even with various heat sources different in flame position.SOLUTION: A coffee bean roaster is composed of a drum body and a rotational shaft stand. The rotational shaft stand includes: a pair of right and left pillar frames; and a plurality of coupling rods detachably coupled to the pillar frames therebetween. The pillar frames are composed of: two arms which are joined to each other so as to cross in a general X-shape and be rotatable; and one arm laid detachably at a lower part thereof, and are foldable. The rotational shaft stand includes up-and-down invertible heat shield plates. The drum body includes at least two U-shaped stirring parts thereinside.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a coffee bean roaster that roasts coffee beans over a heat source such as a burner. [Background technology]

[0002] 2. Description of the Related Art Conventionally, a known coffee bean roaster involves placing coffee beans in a metal rotary drum and roasting the beans by heating the beans from a heat source placed below the drum while the drum is rotating.

[0003] The following patent document has proposed a handy type roaster that can easily roast small amounts of coffee:

[0004] This roaster uses only a portable stove as a heat source, and has a groove in the bottom of the turntable to ensure stability when the portable stove is placed on the base. The turntable is also integrally configured to support the drum body. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2002-119269 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the above roaster, although the circular bottom ensures stability against heat sources such as portable stoves, the heat sources that can be used are limited to portable stoves and gas ranges, and there is an issue that it cannot be used with various heat sources with different flame positions.

[0007] Furthermore, they are inconvenient in terms of portability and space-saving use, and there is also the problem that heat is easily dissipated into the surroundings during use, resulting in heat loss.

[0008] Furthermore, since the coffee beans placed inside the drum are not stirred efficiently, the beans are not roasted uniformly and there are problems such as uneven temperature distribution.

[0009] Therefore, the present invention has been made in consideration of the above problems, and aims to provide a coffee bean roaster that has excellent equilibrium stability by being self-supporting at four points, can be easily folded compactly without disassembling the support frame, etc., and can efficiently roast beans even with various heat sources that have different flame positions.

[0010] Furthermore, the present invention is equipped with a heat shield whose height can be adjusted to match the flame position of the heat source being used, making it possible to accommodate a variety of heat sources and efficiently transfer heat to the drum body.

[0011] In order to solve the above problems, the coffee bean roaster of the present invention is a coffee bean roaster that comprises a drum body into which coffee beans are put and a rotating shaft base that rotatably supports the drum body, and roasts the beans by heating the inside of the drum with heat from a heat source while rotating the drum body, and is characterized in that the rotating shaft base comprises a pair of left and right support frames and a plurality of connecting rods that are detachably connected between the support frames, and the support frame is composed of two arms that are rotatably connected in an approximately X-shape and cross each other, and one arm that is detachably installed across the lower part of the arms, and is foldable.

[0012] In addition, the rotating shaft base is equipped with two connecting rods at the upper part of the support frame and two connecting rods at the lower part of the support frame, and a heat shield is provided on the connecting rods at the lower part of the support frame, making it possible to adjust the position of the heat shield according to the flame position of the heat source being used.

[0013] The drum body is also characterized in that U-shaped stirring portions are provided diagonally on the inside of the left and right sides. Effect of the Invention

[0014] According to the coffee bean roaster of the present invention, the rotating shaft base can be easily folded into a compact shape using only the range of motion, without having to disassemble the arms, connecting rods, etc., due to its shape when in use, making it suitable for moving and carrying.

[0015] Furthermore, the present invention is provided with a heat shield plate, which is axially attached to a connecting rod so as to be drivable and thus can be inverted. Therefore, by inverting the heat shield plate upside down to accommodate flames from various heat sources of different heights, it is possible to prevent heat loss to the surroundings due to radiant heat, thereby enabling efficient roasting.

[0016] In addition, in the present invention, U-shaped stirring sections are provided diagonally on the inside of the side of the drum body, so that the coffee beans placed into the drum body can be stirred evenly as the drum body rotates, enabling uniform roasting without unevenness. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a perspective view showing the coffee bean roaster according to the present invention in use when the heat source flame is high. [Diagram 2] FIG. 2 is a perspective view of the rotating shaft table of the coffee bean roaster according to the present invention, in which the heat shield plate is adjusted when the heat source flame is high. [Diagram 3] FIG. 2 is a perspective view showing the coffee bean roaster according to the present invention in use when the heat source flame is low. [Figure 4] FIG. 2 is a perspective view of the rotating shaft base of the coffee bean roaster according to the present invention, in which the heat shield plate is adjusted when the heat source flame is low. [Diagram 5] FIG. 2 is a plan view showing the rotating shaft base of the coffee bean roaster according to the present invention in a folded state. [Figure 6] FIG. 2 is a perspective view showing the rotating shaft base of the coffee bean roaster according to the present invention in a folded state. [Figure 7] FIG. 2 is a perspective view of the drum body of the coffee bean roaster according to the present invention. [Figure 8] FIG. 2 is an exploded view of the drum body of the coffee bean roaster according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] An embodiment of the present invention will be described in detail with reference to the drawings. Figures 1 and 3 are diagrams showing a coffee bean roaster according to the present invention in use, Figures 2 and 4 are diagrams showing the rotating shaft base, Figures 5 and 6 are diagrams showing the rotating shaft base in a folded state, and Figures 7 and 8 are diagrams showing the drum body.

[0019] As shown in Figures 1 and 2, the coffee bean roaster A according to the present invention is composed of a drum body B and a rotating shaft base C. A heat source is placed under the rotating shaft base C, and the coffee beans placed inside the drum body B are roasted by rotating the drum body B.

[0020] As shown in Figs. 3 and 4, the rotating shaft base C is composed of a pair of support frames consisting of arms 1, 2, and 3. The arms 1 and 2 are provided with a connecting shaft 5 and are connected to each other so as to be pivotable about the connecting shaft 5 as a fulcrum. The arms 2 and 3 are provided with a connecting shaft 7 and are connected to each other so as to be pivotable about the connecting shaft 7 as a fulcrum. In this embodiment, screws are used as the connecting shafts 5 and 7 to apply an appropriate compressive force, thereby making the arms 1, 2, and 3 pivotable. With this configuration, the arms 1 and 2 can be opened in a palm-to-palm shape, and the arms 2 and 3 can be opened in an X-shape. As a result, a set of the arms 1, 2, and 3 can form a single triangular support.

[0021] In addition, the arm 3 has a notch 24 at a specified position into which the fixing pin 8 provided on the arm 1 is inserted, and when the fixing pin 8 is inserted into the notch 24, a support frame is formed so that the arm 3 is horizontal, and this shape is maintained.

[0022] The pair of support frames are configured for use by connecting rods 11, 12, 13, and 14 that are laid across the pair of support frames at predetermined positions and are attached to the fixing parts 6, 9, and 10, respectively. This allows the rotating shaft base C of the present invention to stand on its own at four points, the pair of arms 1 and 2, and to maintain a stable balance.

[0023] A pair of support frames consisting of arms 1, 2 and 3 each have a notch that allows it to be folded into an I-shape. Arm 2 is formed with notch 19 into which fixed pin 8 is fitted and notch 20 into which connecting rod 13 is fitted, while arm 3 is formed with notches 18 and 24 into which fixed pin 8 is fitted, notch 17 into which connecting rod 13 is fitted, and notch 16 into which connecting rod 14 is fitted. These are pivotally connected by appropriate compressive force of connecting shafts 5 and 7, so that all arms can be easily driven and can be folded as shown in Figures 5 and 6.

[0024] Arms 1 and 2 have notches 21 and 22, respectively, on the upper part of connecting shaft 5, and when arms 1 and 2 are opened in a palm-to-palm shape, the notches 21 and 22 form a U-shape to form bearing 4. A rotating shaft 35 provided on drum body A is placed on bearing 4, making it possible to rotate drum body A.

[0025] The rotating shaft base C is also provided with a pair of heat shield plates 15 on the connecting rods 13 and 14. The heat shield plates 15 are pivotally attached by locking pins 23 so as to be reversible around the connecting rods 13 and 14 as the respective rotation shafts, and the heat shield plates 15 can be turned upside down depending on the height of the heat source flame. For example, when a single burner 25 is used as the heat source and the flame is high, the heat shield plates 15 can be turned upside down and used to prevent heat loss to the surroundings due to radiant heat, thereby enabling efficient roasting.

[0026] Conversely, when the flame is low, such as when a portable gas stove or alcohol stove 26 is used as the heat source, the heat shield 15 can be inverted downward to prevent heat loss to the surroundings due to radiant heat, thereby enabling efficient roasting.

[0027] By configuring the rotating shaft base C as described above, it is possible to secure space for a heat source other than a portable stove, such as a single burner or an alcohol stove, and by providing a heat shield plate that can be rotated around the connecting shafts 13 and 14 as a rotating shaft, it is possible to accommodate various heat sources of different heights, and it is possible to reduce heat loss to the surroundings due to radiant heat and achieve efficient roasting. Also, it is possible to place a mesh plate on the connecting rods 11 and 12 as shown in Figure 1.

[0028] The drum body B is composed of a cylindrical mesh-like drum 31 made of metal, side plates 32a and 32b fitted to both ends of the drum 31, a handle 34, and a rotating shaft 35. The rotating shaft 35 penetrates the center of the side plates 32a and 32b and is fixed with a screw, and the handle 34 is connected to the rotating shaft 35, so that the drum body B can be rotated via the rotating shaft 35 by turning the handle 34. As described above, the shape of the drum 31 is preferably cylindrical, but is not necessarily limited to this. The mesh-like drum 31 may be, for example, a punched plate made of metal.

[0029] The side plate 32b is provided with an opening 36 that can be opened and closed, and coffee beans can be put into the drum body through the opening 36.

[0030] Furthermore, stirring sections 37a and 37b for stirring the coffee beans placed in the drum 31 are provided on the inside of the side plates 32a and 32b, respectively. When the drum main body B is rotated, the stirring sections 37a and 37b stir the coffee beans inside the drum evenly and without bias, enabling efficient roasting.

[0031] An example of using the coffee bean roaster according to the present invention will be described below. First, the rotating shaft base C, which is in a folded state as shown in Figures 5 and 6, is opened with arms 1 and 2 folded around the connecting shaft 5, and then the arm 3 is rotated around the connecting shaft 7 to a horizontal position, and the fixing pin 8 is inserted into the notch 24 to fix the shape of the pair of support frames.

[0032] A single burner or the like is installed as a heat source below the rotating shaft base C, and the heat source is ignited by inverting the heat shield plate 15 upside down and fixing it according to the position of the flame of the heat source.

[0033] Next, the input port 36 of the drum body B is opened, coffee beans are input through it, and the input port 36 is closed. After the coffee beans have been input into the drum body B, the rotating shaft 35 is placed on the bearing 4, so that the rotating shaft base C and the drum body B are integrated together.

[0034] By turning the handle 4, the drum body B rotates, and the coffee beans placed inside are uniformly stirred by the stirring portions 37a and 37b, resulting in efficient roasting.

[0035] After use, the rotary shaft base C can be folded again as shown in Figs. 5 and 6, making it possible to store and carry it compactly.

[0036] As described above, the present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the spirit and scope of the invention. [Explanation of symbols]

[0037] A Coffee bean roaster B Drum body C Rotating shaft stand 1, 2, 3 Arm 4 Bearings 5, 7 Connecting shaft 8 Fixing pin 6, 9, 10 Fixing parts 11, 12, 13, 14 connecting rod 15 Heat shield 16, 17, 18, 19, 20, 21, 22 Notch 23 Stop pin 25 Single Burner 26 Portable gas stove / alcohol stove 31 Drums 32a, 32b side plate 34 Handle 35 Rotational Axis 36 Inlet 37a, 37b Stirring section

Claims

1. A coffee bean roaster (A) is comprised of a drum body (B) into which coffee beans are put and a rotary shaft base (C) that rotatably supports the drum body (B), and roasts the beans by heating the inside of the drum body (B) with a flame of a heat source while rotating the drum body (B). The rotary shaft base (C) is comprised of a pair of left and right support frames consisting of arms (1), (2) and (3). The pair of left and right support frames have connecting rods (11), (12), (13) and (14) disposed across them at predetermined positions, and the connecting rods (11), (12), (13) and (14) are disposed at fixed portions (6), (9) and (10). a connecting shaft (5) that connects the arms (1) and (2) to a connecting shaft (5) so as to be pivotable about a connecting shaft (7), and the arms (2) and (3) are pivotally connected to a connecting shaft (7) so as to be pivotable about a connecting shaft (5) so as to be foldable; and the arm (3) has a notch (24) at a predetermined position into which a fixing pin (8) provided on the arm (1) is inserted, and the fixing pin (8) is inserted into the notch (24) to form a support frame so that the arm (3) is horizontal, and the shape of the support frame is maintained.

2. The coffee bean roaster according to claim 1, characterized in that the rotating shaft base (C) has two connecting rods (11) and (12) at the upper part of the support frame and two connecting rods (13 and (14) at the lower part of the support frame, and the connecting rods (13) and (14) provided at the lower part of the support frame are equipped with a heat shield plate (15) that can be turned upside down.

3. The coffee bean roaster according to claim 1 or 2, characterized in that the drum body (B) is provided with U-shaped stirring portions (37a) and (37b) at least diagonally on the inside of the left and right sides.

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