Coffee bean roaster

Abstract

Provided is a coffee bean roaster that is stable and easy to remove. A coffee bean roaster (2) of the present invention includes a base (3) provided to a hearth (81) and having a mounting portion (31); a support member (4) mounted to the mounting portion (31); a shaft (5) that penetrates the support member (4) and is rotatably supported with respect to the support member (4); and a drum (6) having one end portion (661) fixed to the shaft (5) and the other end portion (662) having an opening portion (631) through which coffee beans pass, and rotating by receiving a rotational force transmitted from the shaft (5). Either one of the base (3) and the support member (4) is fitted to the other of the base (3) and the support member (4). The drum (6) is supported on one side at the one end portion (661).

Description

Technical Field

[0001] This invention relates to a coffee bean roaster. Background Technology

[0002] Patent Document 1 discloses a portable roaster for roasting coffee beans and the like. In the roaster described in Patent Document 1, the rotation groove of the cover of the drum body is pivotally supported by the recess of the front support plate, and the rotation step of the handle is pivotally supported by the recess of the rear support plate. In this way, the drum body is supported on both sides.

[0003] When using a roaster to roast coffee beans, the user, for example, feeds the coffee beans into the drum body, heats the drum body with the flame released from the self-igniting device, and rotates the drum body using the handle. The user then stops the flame at a desired time, removes the drum body from the pivot, and discharges the roasted coffee beans from the drum body. To prevent roasting after the flame stops, it is ideal to discharge the coffee beans from the drum body and allow them to cool within a short time after the flame stops.

[0004] However, in the baking machine described in Patent Document 1, the roller body is difficult to remove from the pivot points because the two sides of the roller body are pivotally supported by the recesses of the support plates. Specifically, since the roller body remains hot for a short time after the flame stops, the user cannot hold or touch it and must use the handle to remove it from the pivot points on both sides. However, it is difficult to remove the roller body from the pivot points by holding the handle that extends from one side of the roller body. Furthermore, since the handle has a crank shape, there is a risk that the roller body will become unstable when rotating if the handle is used to remove it from the pivot points.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2002-119269 Summary of the Invention

[0008] The technical problem that the invention aims to solve

[0009] The present invention was made in view of the above circumstances, and its object is to provide a coffee bean roaster in which the drum can be removed stably and easily.

[0010] Technical means to solve the problem

[0011] The above-mentioned problems are solved by the coffee bean roaster of the present invention, which is characterized in that it is used for roasting coffee beans and includes: a base disposed on a furnace rack and having a mounting portion; a support member mounted on the mounting portion; a shaft passing through the support member and rotatable relative to the support member, and supported directly or indirectly by the support member; and a roller, one end of which is fixed to the shaft and the other end of which has an opening for the coffee beans to pass through, and rotates by receiving rotational force transmitted from the shaft, wherein either the base or the support member is fitted with the other of the base and the support member, and the roller is supported on one side at the one end.

[0012] According to the coffee bean roaster of the present invention, either the base or the support member disposed on the roaster frame can be detachably fitted with the other of the base and the support member. Thus, the support member is detachably mounted on the mounting portion of the base. Furthermore, a shaft, whose roller is fixed at one end to and rotatable relative to the support member and is directly or indirectly supported by the support member, is supported on one side at the other end. Therefore, the user can easily remove the roller from the base by, for example, by holding the support member or a component near the support member with one hand to remove the support member from the mounting portion of the base. Furthermore, even when the shaft has a crank shape, the user can remove the roller stably from the base by holding the support member or a component near the support member without holding the shaft.

[0013] In the coffee bean roaster of the present invention, it is preferably characterized in that the support member has: a support portion mounted on the mounting portion; and a bearing portion connected to the support portion and through which the shaft passes; and in the state where the support portion is mounted on the mounting portion, the shaft passing through the bearing portion extends from the bearing portion toward the roller in a direction away from the base.

[0014] According to the coffee bean roaster of the present invention, with the support portion of the support member installed in the mounting portion of the base, the shaft passing through the bearing portion of the support member extends away from the base from the bearing portion of the support member toward the drum. Therefore, with the support portion of the support member installed in the mounting portion of the base, an accumulation portion for coffee beans fed in from the opening of the drum can be formed on one end of the drum opposite to the opening. This allows for efficient roasting of coffee beans in a coffee bean roaster where the drum can be stably and easily removed.

[0015] In the coffee bean roaster of the present invention, it is preferably characterized in that the support member, when installed in the mounting part, has a groove at its lower end for the furnace frame to fit into.

[0016] According to the coffee bean roaster of the present invention, with the support member installed in the mounting portion, the furnace frame engages with a groove provided at the lower end of the support member. Therefore, even when the support member is installed in the mounting portion of the base in a manner that rides on the furnace frame, deviation of the support member from the furnace frame can be prevented. Thus, the support member is stably supported by the furnace frame when installed in the mounting portion. This allows the user to stably rotate the shaft passing through the support member and stably rotate the drum.

[0017] In the coffee bean roaster of the present invention, it is preferably characterized by having a handle attached to the support member on the side opposite to the roller when viewed from the support member.

[0018] According to the coffee bean roaster of the present invention, the user can remove the support member from the mounting part of the base more easily by, for example, holding the handle attached to the support member with one hand. Furthermore, even when the shaft has a crank shape, the user can more stably remove the roller from the base by, for example, holding the handle attached to the support member with one hand.

[0019] In the coffee bean roaster of the present invention, it is preferably characterized in that the shaft passes through the handle.

[0020] In the coffee bean roaster according to the present invention, since the shaft passes through the handle, the user can stably support the drum via the shaft by holding the handle, for example, with one hand. This allows the user to remove the drum from the base more stably and easily.

[0021] In the coffee bean roaster of the present invention, it is preferably characterized by having a cover portion disposed opposite to the handle at a position away from the handle.

[0022] According to the coffee bean roaster of the present invention, the cover is positioned opposite to the handle at a position away from the handle held by the user. Therefore, when the user holds the handle, or while the user is holding the handle, the user's hand and fingers can be prevented from contacting the roaster frame or, for example, the gas cylinder cover of a portable gas stove.

[0023] In the coffee bean roaster of the present invention, it is preferably characterized in that the base has a groove for the furnace rack to be fitted.

[0024] According to the coffee bean roaster of the present invention, when the base is mounted on the oven rack, the oven rack engages with a groove mounted on the base. Therefore, when the base is mounted on the oven rack, deviation of the base from the oven rack can be prevented. Thus, the base is stably mounted on the oven rack. This allows the user to stably rotate the shaft and the drum.

[0025] In the coffee bean roaster of the present invention, it is preferably characterized in that the base is formed in an octagonal shape, and the grooves are provided on portions of each side of the octagon.

[0026] According to the coffee bean roaster of the present invention, the grooves of the base are provided on the portions of each side of the octagonal base. Therefore, the freedom of the setting angle of the base relative to the roaster rack is increased. Thus, the user can set the setting angle of the base relative to the roaster rack according to preference. For example, the user can set the base on the roaster rack with the handle facing forward, or with the handle tilted towards the front, or with the handle facing either left or right, or with the handle pointing towards the depth.

[0027] In the coffee bean roaster of the present invention, it is preferably characterized by having a handle connected to the support member on the side opposite to the drum when viewed from the support member, and having a heat avoidance portion for avoiding convective heat around the drum by tilting as a whole away from the drum when the support member is installed in the mounting portion, the support member having a heat avoidance portion on the upper side of the portion installed in the mounting portion, i.e., the support portion, in order to avoid convective heat around the drum by tilting as a whole away from the drum.

[0028] According to the coffee bean roaster of the present invention, the user can more easily remove the drum from the base by holding the handle and removing the support member from the mounting part of the base. However, due to the convective heat generated around the drum from the flames during roasting, there is a risk that the support member will be heated, and the handle attached to the support member will become too hot to hold. However, in the preferred invention, the support member has a heat-avoiding portion for avoiding the convective heat around the drum by tilting the entire member away from the drum. Therefore, heating of the support member and the handle attached to it can be suppressed.

[0029] In the coffee bean roaster of the present invention, it is preferably characterized in that, when the support member is installed in the mounting part, the shaft extends away from the base from the through hole through the support member toward the roller, the support member has the through hole on a side higher than the heat avoidance part, and the heat avoidance part and the through hole are inclined together in a direction closer to the roller with the upper end of the heat avoidance part as the base point.

[0030] According to the coffee bean roaster of the present invention, the shaft extends away from the base along the through hole of the self-through support member toward the drum. In this way, the drum can be connected along the inclination of the shaft, forming a coffee bean storage area in the inner space of the drum, and uniform roasting is performed while the drum rotates to stir. Here, even if the heat avoidance part is significantly inclined toward the handle side to effectively avoid convective heat, the heat avoidance part and the through hole are also inclined as a whole toward the drum side with the upper end of the heat avoidance part as the base point. Therefore, the shaft and the drum connected to it are modified so that the angle of inclination of the heat avoidance part is a suitable roasting angle, allowing for better roasting.

[0031] In the coffee bean roaster of the present invention, it is preferably characterized in that a space is formed between the handle and the support member by connecting the handle and the support member in a separate state.

[0032] According to the coffee bean roaster of the present invention, since there is a space between the handle and the support member, the space becomes a heat insulation layer, which can reduce the heat transferred to the handle and prevent the hand holding the handle from being burned.

[0033] Invention Effects

[0034] According to the present invention, a coffee bean roaster in which the drum can be stably and easily removed can be provided. Attached Figure Description

[0035] Figure 1 A perspective view showing the coffee bean roaster of this embodiment.

[0036] Figure 2 A perspective view showing the coffee bean roaster of this embodiment.

[0037] Figure 3 for Figure 1 The cross-sectional view of the cut surface AA shown.

[0038] Figure 4 A perspective view showing the support member and the portion near the shaft in this embodiment.

[0039] Figure 5 for Figure 4 The cross-sectional view of the cut surface BB shown.

[0040] Figure 6 A perspective view showing the support member of this embodiment.

[0041] Figure 7 In order to be in Figure 6 The side view of the supporting member when viewed in the direction of arrow A2 shown.

[0042] Figure 8A perspective view showing the base of this embodiment.

[0043] Figure 9 A top view showing the base of this embodiment.

[0044] Figure 10 A top view showing the roller of this embodiment.

[0045] Figure 11 An exploded view showing the roller of this embodiment.

[0046] Figure 12 This is a central longitudinal sectional view of a coffee bean roaster, which is a variation of this embodiment.

[0047] Figure 13 This is a diagram showing the mounting of a support member in the mounting section of this modified example.

[0048] Figure 14 This is a front view of the periphery of the mounting section in this modified example, showing the mounting section with a support member installed.

[0049] Figure 15 This is a diagram of the mounting section and its surrounding area in this modified example. Figure 15 (A) is its bottom side perspective. Figure 15 (B) is its top view.

[0050] Figure 16 (A) is a perspective view of the supporting member in this modified example. Figure 16 (B) is Figure 16 Another variation of the support member of (A).

[0051] Figure 17 for Figure 12 A rough enlarged view of the handle and its surrounding area.

[0052] Figure 18 A perspective view of the spoon that comes with the coffee bean roaster of this embodiment.

[0053] Figure 19 for Figure 18 The front view of the key (the rear view is symmetrical to the front view).

[0054] Figure 20 for Figure 18 A top view of the key.

[0055] Figure 21 for Figure 18 A top view of a spoon.

[0056] Figure 22 for Figure 18 The right-side view of the key.

[0057] Figure 23for Figure 18 Left view of the key. Detailed Implementation

[0058] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0059] Furthermore, the embodiments described below are preferred examples of the present invention, and therefore various limitations for technical advantages are imposed. However, unless otherwise specified in the following description, the scope of the present invention is not limited to these embodiments. Also, in the accompanying drawings, the same symbols are used to denote the same constituent elements, and detailed descriptions are appropriately omitted.

[0060] Figure 1 and Figure 2 A perspective view showing the coffee bean roaster of this embodiment.

[0061] Figure 3 for Figure 1 The cross-sectional view of the cut surface AA shown.

[0062] Other, Figure 1 A perspective view showing the state of the support component installed on the mounting part of the base. Figure 2 A perspective view showing the state of the support component being removed from the mounting part of the base.

[0063] The coffee bean roaster 2 in this embodiment is a machine used for roasting coffee beans, such as... Figures 1-3 As shown, it is mainly used on the grill 81 of the portable gas stove 8. That is, the coffee bean roaster 2 of this embodiment is a portable coffee bean roaster that can be used in a general household.

[0064] like Figures 1-3 As shown, the coffee bean roaster 2 includes a base 3, a support member 4, a shaft 5, and a drum 6. The coffee bean roaster 2 may further include a handle 71 and a cover 72. Note that the portable gas stove 8 is not included in the coffee bean roaster 2, but is described for ease of explanation. Figures 1-3 .

[0065] The base 3 is a platform for placing the baking machine body, including the roller 6 and the shaft 5, onto the cassette oven 8 via a support member 4, and the annular member with a central opening is made of, for example, metal. The base 3 has a groove 321 at its lower end, which is provided on the oven rack 81 of the cassette oven 8. Figures 1-3 As shown, with the base 3 mounted on the furnace frame 81, the furnace frame 81 is fitted into the groove 321 of the base 3. Figures 1-3In the illustrated portable gas stove 8, four gas holders 81 are arranged at 90-degree intervals along the circumference centered on the burner 82. Therefore, preferably, at least four slots 321 are arranged at 90-degree intervals at the lower end of the base 3 along the circumference centered on the annular center, corresponding to the positions of the gas holders 81. Figures 1-3 In the base 3 shown, eight slots 321 are provided at 45-degree intervals along the circumference centered on the annular central part.

[0066] The base 3 has a mounting part 31. For example... Figures 1-3 As shown, the support member 4 that supports the baking machine body is mounted on the mounting part 31 of the base 3. For example... Figure 2 As shown by arrow A1, the support member 4 is detachably mounted on the mounting portion 31 of the base 3. Specifically, as... Figure 3 As shown, the support member 4 is detachably fitted into the hole 311 of the mounting portion 31. Thus, the support member 4 is detachably mounted on the mounting portion 31 of the base 3. Alternatively, for example, the support member 4 can be detachably mounted on the mounting portion 31 of the base 3 by detachably fitting a protrusion (not shown) of the mounting portion 31 into the hole (not shown).

[0067] Support member 4 is formed of, for example, metal, as a plate-like member. Figure 3 As shown, shaft 5 passes through support member 4. Support member 4 supports shaft 5 so that it can rotate freely, and is mounted on mounting part 31 of base 3 by means of hole 311 of mounting part 31 which is fitted into it freely as described above.

[0068] Shaft 5, as a rod-shaped member that rotates roller 6, is made of, for example, metal. Shaft 5 passes through support member 4 and is rotatably supported relative to support member 4. Figures 1-3 As shown, shaft 5 has a crank shape. That is, shaft 5 is a so-called crankshaft. Shaft 5 has a handle 51 that is rotatably mounted at one end. The user can rotate the crank-shaped part by grasping the handle 51, thereby causing shaft 5 to rotate. Figure 3 The axis A61 shown is the center of rotation.

[0069] The roller 6 is a cylindrical component made of, for example, metal. That is, the roller 6 has an internal space for holding roasted coffee beans. The roller 6 is fixed to the shaft 5 at one end 661. The method of fixing the roller 6 to the shaft 5 is not particularly limited. Examples of methods of fixing the roller 6 to the shaft 5 include, for example, fixing by welding, and fixing by fastening components such as screws.

[0070] At the other end 662, the drum 6 has an opening 631. The opening 631 functions as both an inlet and outlet for coffee beans. That is, coffee beans can pass through the opening 631 of the drum 6. When starting, for example, roasting coffee beans, the user puts the coffee beans into the interior (i.e., the storage space) of the drum 6 through the opening 631. On the other hand, when finishing, for example, roasting coffee beans, the user discharges the roasted coffee beans from the interior (i.e., the storage space) of the drum 6 through the opening 631.

[0071] Because the roller 6 is fixed to the shaft 5 at one end 661, it utilizes the rotational force transmitted from the shaft 5 to... Figure 3 The shaft A61 shown is the center of rotation. For example, when the user grasps the handle 51 and rotates the crank-shaped part, causing the shaft 5 to rotate around the shaft A61, the roller 6 receives the rotational force transmitted from the shaft 5 and rotates around the shaft A61.

[0072] like Figure 3 As shown, the stirring blade 611 is disposed on the inner surface of the drum 6. The stirring blade 611 extends along the shaft A61 and extends from the inner surface of the drum 6 to the center of the drum 6 (i.e., the shaft A61). Therefore, when the drum 6 rotates about the shaft A61, the coffee beans stored inside the drum 6 are stirred approximately evenly by the stirring blade 611.

[0073] As described above, the roller 6 is fixed to the shaft 5 at one end 661. The shaft 5 passes through the support member 4 and is rotatably supported relative to the support member 4. The support member 4 is detachably mounted to the mounting portion 31 of the base 3 by means of a hole 311 in the mounting portion 31. Thus, with the support member 4 mounted to the mounting portion 31 of the base 3, one end 661 of the roller 6 is supported on one side in the direction of the shaft A61.

[0074] Next, referring to the accompanying drawings, the coffee bean roaster of this embodiment will be described in detail.

[0075] Figure 4 A perspective view showing the support member and the portion near the shaft in this embodiment.

[0076] Figure 5 for Figure 4 The cross-sectional view of the cut surface BB shown.

[0077] Figure 6 A perspective view showing the support member of this embodiment.

[0078] Figure 7 In order to be in Figure 6 The side view of the supporting member when viewed in the direction of arrow A2 shown.

[0079] like Figure 4 and Figure 5 As shown, a handle 71 is attached to the support member 4. Specifically, viewed from the support member 4 on the side opposite to the roller 6, i.e., on the side of the handle 51, the handle 71 is attached to the support member 4. The handle 71 has a shape that allows the user to hold it with one hand and is made of, for example, resin. Figure 3 and Figure 5 As shown, shaft 5 rotates freely through handle 71.

[0080] like Figure 4 and Figure 5 As shown, the cover 72 is positioned opposite to the handle 71 at a location away from it. Specifically, with the support member 4 mounted on the mounting portion 31 of the base 3, the cover 72 is positioned opposite to the handle 71 at a location away from the handle 71 towards the base 3 (i.e., the lower side). This prevents the user's hands and fingers from contacting, for example, the stove frame 81 or the gas cylinder cover 84 of the portable stove 8 when the user holds the handle 71, or while the user is holding the handle 71 (see reference). Figures 1-3 ).

[0081] like Figure 6 and Figure 7 As shown, the support member 4 is formed as a plate-shaped member and has a support portion 41 and a bearing portion 42. The support portion 41 is the part of the support member 4 that fits into the hole 311 of the mounting portion 31 of the base 3.

[0082] like Figure 6 As shown, the support portion 41 has a groove 411 formed at its lower end. For example, when the base 3 is placed on the furnace frame 81 with the furnace frame 81 engaged with the groove 321 at the lower end of the mounting portion 31 provided on the base 3, that is, when the base 3 is placed on the furnace frame 81, i.e., when the support portion 41 has a groove 411 formed at its lower end, the support portion 41 has a groove 411 formed at its lower end. Figure 1 and Figure 2 In the configuration shown, with the base 3 mounted on the furnace frame 81 in a 45-degree circumferential rotation around the burner 82, the support portion 41 of the support member 4 rides on the furnace frame 81 when it engages with the hole 311 of the mounting portion 31. At this time, the furnace frame 81 engages with the groove 411 formed at the lower end of the support portion 41. Therefore, even when the support portion 41 of the support member 4 is mounted on the mounting portion 31 of the base 3 while riding on the furnace frame 81, the position of the support member 4 can be prevented from deviating from the furnace frame 81. Thus, the support member 4 is stably supported by the furnace frame 81 while mounted on the mounting portion 31 of the base 3.

[0083] The bearing portion 42 is connected to the upper end of the support portion 41, that is, the end opposite to the lower end where the groove 411 is formed. For example... Figure 6 As shown, the bearing portion 42 has a through hole 421. The shaft 5 passes through the bearing portion 42 via the through hole 421 and is supported rotatably relative to the bearing portion 42. That is, as Figure 5As shown, the shaft 5 passes through the handle 71 and the bearing portion 42 of the support member 4, and is fixed to the roller 6 at the other end (i.e., the end opposite to the end where the handle 51 is provided).

[0084] like Figure 7 As shown, the bearing portion 42 is connected to the support portion 41 in an inclined state relative to the support portion 41. That is, the shaft A62 of the through hole 421 of the bearing portion 42 extends obliquely relative to the mounting direction (refer to arrow A1) of the support portion 41 relative to the mounting portion 31 of the base 3. Specifically, as Figure 3 As shown, with the support portion 41 mounted on the mounting portion 31 of the base 3, the shaft 5 passing through the bearing portion 42 extends away from the base 3 as it moves from the bearing portion 42 toward the roller 6. Furthermore, the shaft A62 of the through hole 421 of the bearing portion 42 is substantially aligned with the shaft A61, which serves as the rotation center of both the shaft 5 and the roller 6.

[0085] Figure 8 A perspective view showing the base of this embodiment.

[0086] Figure 9 A top view showing the base of this embodiment.

[0087] like Figure 8 and Figure 9 As shown, the base 3 is formed as a ring-shaped member with an opening 33 in the center. Specifically, the base 3 is formed as an octagonal ring-shaped member. A groove 321 is formed at the lower end of the edge 32 of the octagonal base 3. Each groove 321 is formed at the center of its respective edge 32. Therefore, as... Figure 9 As shown, eight slots 321 are provided at 45-degree intervals along the circumference centered on the annular central part.

[0088] This increases the freedom of setting the base 3 relative to the stove frame 81. That is, the user can set the angle of the base 3 relative to the stove frame 81 according to their preference. For example, the user can adjust the angle using the handle 51 (see reference). Figure 4 and Figure 5 The base 3 can be placed on the furnace frame 81 in a forward direction, or with the handle 51 tilted from the forward direction, or with the handle 51 facing either the left or right, or with the handle 51 facing the depth.

[0089] The mounting portion 31 has a hole 311. The hole 311 is formed by passing through the mounting portion 31. Regarding... Figures 1 to 7 As described above, the support member 4 is detachably fitted into the hole 311 of the mounting part 31 by means of the support part 41 of the support member 4, thereby detachably mounting the support member 4 onto the mounting part 31 of the base 3.

[0090] The mounting portion 31 has a groove 321 at its lower end that is the same as the groove 321 formed on each of the edge portions 32. Therefore, when the base 3 is mounted on the furnace frame 81 with the mounting portion 31 riding on it, the furnace frame 81 engages with the groove 321 formed at the lower end of the mounting portion 31. This prevents the base 3 from deviating from the furnace frame 81, even when the base 3 is mounted on the furnace frame 81 with the mounting portion 31 riding on it. Therefore, the base 3 is stably mounted on the furnace frame 81.

[0091] Figure 10 A top view showing the roller of this embodiment.

[0092] Figure 11 An exploded view showing the roller of this embodiment.

[0093] like Figure 10 and Figure 11 As shown, the roller 6 has a first body portion 61, a second body portion 62, a first cover portion 63, a second cover portion 64, and a ring member 65. Both the first body portion 61 and the second body portion 62 are cylindrical. The first body portion 61 is disposed inside the second body portion 62. That is, the outer diameter of the first body portion 61 is smaller than the inner diameter of the second body portion 62. By disposing the first body portion 61 inside the second body portion 62, the roller 6 has a structure that functions as a double roller.

[0094] like Figure 11 As shown, the stirring blade 611 is disposed on the inner surface 612 of the first body portion 61. The stirring blade 611 extends along the shaft A61 and extends from the inner surface 612 of the first body portion 61 toward the center of the cylinder of the first body portion 61 (i.e., the shaft A61).

[0095] The first cover 63 has an opening 631 that functions as both a coffee bean inlet and outlet, and is fitted to the second body 62 on one side of the other end 662 of the roller 6. The first cover 63 can be detachably fitted to the second body 62.

[0096] The second cover portion 64 is fitted to the second body portion 62 at one end 661. The second cover portion 64 is fixed to the second body portion 62 by, for example, welding. The second cover portion 64 is generally frustoconical in shape, such as... Figure 3 As shown, when the drum 6 rotates, the coffee beans slide down the inner side of the frustum-shaped cone.

[0097] The ring member 65 is fitted to the second cover 64 at one end 661. The ring member 65 is fixed to the second cover 64 by means of welding, for example. The shaft 5 is fitted into the ring member 65 and fixed to the ring member 65 by means of fasteners such as welding or screws. In this way, the roller 6 is fixed to the shaft 5 at one end 661.

[0098] Next, refer to Figures 1 to 11 This section explains the usage and operation examples of the coffee bean roaster 2 in this embodiment.

[0099] First, the user places the base 3 on the burner frame 81 of the portable gas stove 8 by fitting it into the groove 321 of the base 3. This prevents the base 3 from deviating from the burner frame 81. Therefore, the base 3 is stably placed on the burner frame 81.

[0100] At this time, the user can set the setting angle of the base 3 relative to the stove rack 81 according to their preference. For example, the user can set the base 3 on the stove rack 81 with the handle 51 facing forward, or with the handle 51 tilted from the forward direction, or with the handle 51 facing either the left or right, or with the handle 51 facing the depth direction.

[0101] Next, the user fits the support member 4 into the hole 311 of the mounting part 31, thereby installing the support member 4 into the mounting part 31. In this way, as... Figure 1 and Figure 3 As shown, one end 661 of the roller 6 in the direction of shaft A61 is supported on one side. At this time, as... Figure 3 As shown, shaft 5 extends away from base 3 as the bearing portion 42 of self-supporting member 4 faces roller 6.

[0102] Next, the user inserts coffee beans into the interior of the drum 6 (specifically, the interior of the first body part 61) through the opening 631. Then, the user operates the control knob 83 of the portable gas stove 8 (see reference 83). Figures 1-3 The drum 6 rotates, igniting the burner 82. In this way, the drum 6 is heated by the flame released from the burner 82. At this time, regarding... Figure 10 and Figure 11 As mentioned above, because drum 6 has a double drum structure, it performs semi-hot air roasting instead of direct fire roasting, thus preventing the surface of the coffee beans from scorching.

[0103] Furthermore, by grasping the handle 51, the user rotates the crank-shaped portion of the shaft 5, causing the roller 6 to rotate around the shaft A61. At this time, because the furnace frame 81 is fitted into the groove 321 of the base 3, the position of the base 3 is prevented from deviating from the furnace frame 81. Therefore, the base 3 is stably positioned on the furnace frame 81. In this way, the user can stably rotate the shaft 5 and the roller 6.

[0104] As the drum 6 rotates, the coffee beans fed into it are heated by the flame released from the self-burning device 82, forming a double-drum structure, and are substantially uniformly stirred by the stirring blades 611. Furthermore, because the shaft 5 extends away from the base 3 along with the bearing portion 42 of the self-supporting member 4 towards the drum 6, an accumulation portion for the coffee beans fed into the drum 6 through the opening 631 is formed on one end 661 of the drum 6, opposite to the opening 631. This allows the coffee beans to be mixed and roasted evenly and effectively. Thus, the roasting of the coffee beans is carried out.

[0105] Next, the user rotates the operating knob 83 of the portable gas stove 8 at a timer according to their preference, causing the flame of the burner 82 to stop. Furthermore, to prevent roasting after the flame stops, it is ideal for the user to discharge the coffee beans from the drum 6 and allow them to cool within a short period of time after the flame stops.

[0106] Therefore, in this embodiment of the coffee bean roaster 2, the user can remove the support member 4 from the mounting portion 31 of the base 3 by, for example, holding the handle 71 with one hand, and then remove the roller 6 from the base 3. At this time, the cover 72 is positioned opposite the handle 71 away from the handle 71, thus preventing the user's hand and fingers from contacting, for example, the oven rack 81 or the gas cylinder cover 84 of the portable gas stove 8. Furthermore, since the roller 6 is fixed to the shaft 5 at one end 661 and supported on one side at the other end 661, the user can easily remove the support member 4 from the mounting portion 31 of the base 3 and easily remove the roller 6 from the base 3.

[0107] Furthermore, even without holding the crank-shaped shaft 5, the user can remove the support member 4 from the mounting portion 31 of the base 3 by, for example, holding the handle 71 with one hand, and thus stably remove the roller 6 from the base 3. Moreover, since the shaft 5 passes through the handle 71, the user can stably support the roller 6 via the shaft 5 by, for example, holding the handle 71 with one hand. This allows the user to remove the roller 6 from the base 3 more stably and easily.

[0108] Next, the user, for example, holding the handle 71 with one hand, tilts the roller 6 so that the opening 631 of the roller 6 faces downward. This allows the user to easily discharge coffee beans from inside the roller 6 through the opening 631 shortly after the flame stops. Next, the user inserts the support member 4 into the hole 311 of the mounting part 31 to reinstall the support member 4 onto the mounting part 31. Since the user can easily reinstall the support member 4 onto the mounting part 31 simply by inserting it into the hole 311, the roller 6 can be easily supported on one side at one end 661. Therefore, the user can cool the coffee beans shortly after the flame stops, preventing roasting after the flame stops.

[0109] As described above, in the coffee bean roaster 2 according to this embodiment, either the base 3 and the support member 4 provided on the oven rack 81 are detachably fitted into the other of the base 3 and the support member 4. Thus, the support member 4 is detachably mounted on the mounting portion 31 of the base 3. Furthermore, the roller 6 is fixed at one end 661 to a shaft 5 that passes through the support member 4 and is rotatably supported relative to the support member 4, and is supported on one side at that end 661. Therefore, the user can easily remove the support member 4 from the mounting portion 31 of the base 3 by, for example, holding the support member 4 with one hand or a component near the support member 4 (e.g., a handle 71), thereby easily removing the roller 6 from the base 3. Furthermore, even when the shaft 5 has a crank shape, the user can remove the roller 6 stably from the base 3 by holding the support member 4 or a component near the support member 4 (e.g., a handle 71) without holding the shaft 5.

[0110] [Variation Example]

[0111] use Figures 12-17 The following describes variations of the above-described embodiments of the present invention. Figure 12 This is a central longitudinal sectional view of the coffee bean roaster 100 of this variant example (cut-off position and...). Figure 3 same), Figure 13 The drawing shows the installation of the support member 90 in the mounting section 52. Figure 14 This is a partial front view of the mounting section 52 with the support member 90 installed. Also, Figure 15 (A) is a bottom side perspective view of the mounting part 52 and its surrounding area. Figure 15 (B) is its top view. Figure 16 (A) is a perspective view of the supporting member 90. Figure 16 (B) is another variation of the support member 90. Figure 17 for Figure 12 A schematic enlarged view of the handle 71 and its surroundings, with small details omitted to avoid making the drawing too cluttered.

[0112] In these figures, due to the labeling and Figures 1 to 11 The parts with the same symbols in the coffee bean roaster 2 have the same structure, so repeated explanations are omitted. The following explanation focuses on the differences.

[0113] The main difference between the coffee bean roaster 100 of this variant and the coffee bean roaster 2 of the above embodiment lies in the support member 90, the mounting part 52, the handle 71, and their relationship.

[0114] First of all, with Figures 13-15The assembly and disassembly structure of the support member 90 and the mounting portion 52 in this modified example will be described with a focus on these components. The mounting portion 52 has two opposing flat plate portions 15 and 16, and a connecting portion 17 located between the first plate portion 15 and the second plate portion 16, connecting the first plate portion 15 and the second plate portion 16. In contrast, the support portion 92, located below the support member 90 and mounted on the mounting portion 52, is plate-shaped, and has a notch 67 formed at its lower end that inserts into and engages with the connecting portion 17. Thus, the support member 90 can be detachably mounted on the mounting portion 52.

[0115] Specifically, the first plate portion 15 includes a portion 3a of an annular base 3 and an extension 3b formed by extending upward from the portion 3a. The upper end face of the extension 3b is chamfered and inclined at both ends 15a, 15a along the circumference of the base 3. Furthermore, at the lower end of the first plate portion 15, a protrusion 23 is formed protruding toward the second plate portion 16. The protrusion 23 is curved in a convex manner toward the second plate portion 16, and is, for example, generally hemispherical. A support portion 92 can be inserted between the protrusion 23 and the second plate portion 16.

[0116] The second plate portion 16 has the same shape as the first plate portion 15, and the two ends 16a, 16a of the upper surface along the circumference of the base 3 are chamfered and inclined. The second plate portion 16 is lower than the first plate portion 15, so that when the mounting portion 52 is viewed from the side of the second plate portion 16, the upper end portion 15b of the first plate portion 15 is exposed.

[0117] The overall shape of the connecting portion 17 is approximately similar to that of the notch 67 of the support portion 92, but is slightly smaller than the inner space of the notch 67. When viewed through the second plate portion 16, the connecting portion 17 is a trapezoidal shape with its upper side forming the upper base, and the side surfaces (legs of the trapezoidal shape) 17a, 17a along the height direction are inclined surfaces. The thickness D1 of the connecting portion 17 (i.e., the distance between the first plate portion 15 and the second plate portion 16) is greater than the thickness D2 of the support portion 92. Furthermore, the upper end surface 17c of the connecting portion 17 is at the same height as the central portion 16c of the upper end surface of the second plate portion 16.

[0118] With the above configuration, when the support portion 92 is inserted between the first plate portion 15 and the second plate portion 16, the mounting portion 52 is not box-shaped, and the two ends 15a, 15a, 16a, 16a of the first and second plates 15 and 16 are chamfered. Furthermore, the upper end portion 17c of the connecting portion 17 is at the same height as the center portion 16c of the upper end face of the second plate portion 16, making the connecting portion 17 easily visible. Moreover, since the distance D1 between the first plate portion 15 and the second plate portion 16 is greater than the thickness D2 of the support portion 92, and both the connecting portion 17 and the notch portion 67 are trapezoidal, the connecting portion 17 can be easily inserted into the notch portion 67 of the support portion 92. Even so, with the distance D1 greater than the thickness D2 of the support portion 92, the support portion 92 can be pressed by the protrusion 23, and the support portion 92 can be clamped by the first plate portion 15 and the second plate portion 16 to prevent wobbling. In this modified example, taking the support member 90 as a reference, the roller 6 side is heavier than the handle 71 side, such as Figure 14 The support portion 92 shown is inclined with its upper end portion 92a facing the roller side. Furthermore, the support portion 92 stops moving by contacting the upper end portion 15b of the first plate portion 15, the protrusion 23, and the lower end portion 16b of the second plate portion 16.

[0119] Furthermore, grooves 333 are formed at the lower ends of the first plate portion 15, the second plate portion 16, and the connecting portion 17, and are interconnected. The grooves 333 have a connection with... Figure 8 The slot 321 has the same function, when located on the furnace rack 81 (see reference). Figure 12 When it is positioned, it is fitted into the furnace frame 81.

[0120] Next, with Figure 12 and Figure 17 The connection structure between the support member 90 and the handle 71 in this modified example will be described with a focus on the present invention. As shown in the figure, a space S is formed between the handle 71 and the support member 90 facing each other. The space S is a heat insulation layer used to prevent the handle 71 from heating up as much as possible. In this modified example, considering the balance between the roller 6 side and the handle 71 side or the overall size of the product, the size of the gap between the handle 71 and the support member 90 facing it is kept slightly larger. However, the present invention is not limited to this, and the space S can be increased to achieve a better heat insulation effect.

[0121] To form the space S, the upper part of the support member 90, through the through hole 421 through which the shaft 5 passes, and its peripheral portion (hereinafter referred to as the "shaft through peripheral portion") 45 are connected to the handle 71 in a separated state via a coupling 37 such as a pin or screw. Preferably, the coupling 37 is coated with a heat-insulating coating on a surface of stainless steel or metal with low thermal conductivity, but is not limited to this. One end 37a of the coupling 37 is connected in a manner surrounding the through hole 421 (in... Figure 16The other end 37b is connected to the metal plate 88 of the handle 71, which is fixed to the side of the shaft through the peripheral portion 45.

[0122] Furthermore, the shaft 5 passes through the through hole 421 of the through peripheral portion 45 of the support member 90, but there is a gap between the shaft 5 and the inner surface 421a of the through hole 421, allowing the shaft 5 to be rotatably connected to the handle 71. In the case of the drawings, at several points along the length of the shaft 5, flanges or annular portions (hereinafter referred to as "rings") 27 coaxial with the shaft 5 are provided. In contrast, on the inner side of the handle 71, a locking member 56 is provided to lock the ring 27 in a manner that does not restrict the rotation of the ring 27, but restricts the movement of the ring 27 relative to the length of the shaft 5. Thus, in the present invention, the shaft 5 can also be configured to be rotatably supported not only by the support member 90 (in contact with the through hole 421) but also indirectly (without contact with the through hole 421) via the handle 71 connected to the support member 90.

[0123] Next, with Figure 12 and Figure 16 The support member 90 of this modified example will be described in detail. The support member 90 has a heat-avoiding portion 93 located higher than the support portion 92 mounted on the mounting portion 52. The heat-avoiding portion 93 is used to avoid the convective heat CF generated around the drum 6 by the flames during roasting. In particular, the drum 6 is configured such that coffee beans are collected at the inner bottom periphery (i.e., the accumulation portion) BA of one end 661 (i.e., the second cover portion 64) of the drum 6 in a generally frustum-shaped manner. Therefore, due to the frustum-shaped outer wall (the inclined outer wall around the accumulation portion BA) 64a sloping towards the support member 90, the convective heat CF easily flows towards the support member 90, and even the handle 71 connected to the support member 90 is heated. Therefore, the heat-avoiding portion 93 is formed to avoid the convective heat CF, so that the hand holding the handle 71 will not overheat.

[0124] Specifically, a heat avoidance portion 93 is formed between the support portion 92 and the shaft-penetrating peripheral portion 45. Furthermore, the heat avoidance portion 93 is formed by tilting the entire portion at an angle away from the roller 6, with the upper end portion 92a of the support portion 92 as a base point. Figure 12 In this case, with the support member 90 installed on the mounting portion 52, the heat avoidance portion 93 is tilted towards the handle 51 side as it faces upward. Preferably, the tilt angle θ2 of the heat avoidance portion 93 relative to the vertical direction is larger than the tilt angle θ1 of the inclined outer wall 64a of the storage portion BA located on the side of one end 661 of the roller 6 relative to the vertical direction. Figure 12The tilt angle θ1 is approximately 45 degrees, and the tilt angle θ2 is approximately 50 degrees. However, the tilt angle θ2 of the heat avoidance section 93 is not limited to this; it can be 50 degrees or more. Alternatively, if the distance between the roller 6 and the support member 90 is large, it can be equal to or within the tilt angle θ1 of the tilted outer wall 64a of the accumulation section BA located on the support member 90 side. However, for ease of removal of the baking machine body from the base 3, a smaller distance between the roller 6 and the support member 90 is preferable; therefore, a relationship where tilt angle θ2 > tilt angle θ1, as shown in the figure, is preferred. Furthermore, the tilt of the heat avoidance section 93 can be as simple as tilting it entirely towards the handle 51 side in a way that avoids the flame; for example, it can be as follows: Figure 16 It bends like (B), or becomes stepped.

[0125] In this way, by forming a heat-avoiding part 93 in the support member 90 and forming a space S between the handle 71 and the support member 90, the temperature of the end of the roller 6 side of the handle 71 can be kept below 50 degrees Celsius. If it is below 50 degrees Celsius, there is no risk of burns during short-term contact.

[0126] However, in the support member 90, the heat avoidance part 93 and the shaft through peripheral part 45 integrally formed therewith also serve as a partition wall separating the handle 71 from the roller 6, so that... Figure 12 The convective heat CF shown does not directly impact the grip 71. Therefore, the heat avoidance part 93 and the shaft through peripheral part 45 are preferably designed with the surface facing the roller 6 as the main surface 90a (see reference). Figure 16 The plate shape. Furthermore, preferably, the width W2 (refer to) of the heat-avoiding portion 93 and the shaft-penetrating peripheral portion 45 is [missing information]. Figure 16 Set to the width W1 of the grip 71 (refer to...) Figure 13 It is of the same or higher, and is configured such that when the support member 90 is viewed directly from the roller 6 side, the handle 71 is hidden by the heat avoidance part 93 and the shaft through peripheral part 45.

[0127] Next, with Figures 12-14 The relationship between the shaft through peripheral portion 45 and the heat avoidance portion 93 will be explained with reference to the central part. At least the heat avoidance portion 93 of the shaft through peripheral portion 45 and the through hole 421 are connected by the upper end portion 93a of the heat avoidance portion 93 (see also...). Figure 16 The entire structure is inclined towards the side closer to roller 6, with ) as the base point. In this modified example, as... Figure 13 and Figure 14 As shown, the shaft-through peripheral portion 45 is configured with an angle θ3, which is inclined relative to the imaginary line VL extending the heat avoidance portion 93, such that it becomes the side of the roller 6 as it faces upwards. This inclined angle θ3 is used to... Figure 12 The angle θ4 of the rotating shaft A61 of the roller 6 relative to the horizontal direction is set to a preferred angle. In other words, the tilt angle θ5 of the shaft through periphery 45 relative to the vertical direction (refer to...) Figure 14 )and Figure 12 The angle θ4 of axis A61 relative to the horizontal direction is the same. The angle θ4 of axis A61 is about 10 to 20 degrees, and is set to about 12 degrees in the case of the attached drawing. In this way, even if the heat avoidance part 93 is tilted to avoid convection heat CF, coffee beans can be properly collected in the accumulation part BA and stirred in a way that allows for a generally uniform roasting. In addition, it also prevents the cover part 72 from contacting the gas cylinder storage part 97 that houses the gas cylinder of the portable gas stove 8.

[0128] Additionally, such as Figure 12 and Figure 17 As shown, in this modified example, the upper surface 71a of the handle 71 is straight from the center of the shaft 5 along its length to the end 71b on the handle 51 side, and the angle θ6 formed by the upper surface 71a and the side surface 71c on the handle 51 side is 90 degrees or less. This prevents the hand placed on the upper surface 71a from slipping and coming into contact with the heated shaft 5.

[0129] The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the claims. A portion of the above embodiments may be omitted, or they may be arbitrarily combined in a manner different from that described above.

[0130] For example, Figure 4 and Figure 6 The support member 4 allows the shaft 5 to pass through the through hole 421 of its bearing portion 42 and supports the shaft 5 so that it can rotate freely, but this can also be done as follows: Figure 17 As shown, the support member 90 supports the shaft 5 so that it can rotate freely via the handle 71. That is, the handle 71 supports the shaft 5 so that it can rotate freely, and the support member 90 supports the handle 71, thereby indirectly supporting the shaft 5.

[0131] Or, can Figure 17 The shaft through the perimeter 45 is changed to Figure 4 The bearing portion 42. That is, the shaft 5 can be relative to... Figure 17 The through hole 421 of the shaft through peripheral portion 45 slides freely through, and the shaft through peripheral portion 45 is set as a bearing portion.

[0132] Furthermore, in the coffee bean roasters 2 and 100 described above and their variations, a spoon for removing coffee beans from the drum may also be included in order to check the degree of roasting of the coffee beans. Figures 18-23The spoon 150 shown is therefore rod-shaped. The spoon 150 has a metal body 160 for holding coffee beans and a resin or wooden handle 170. The cross-section of the spoon body 160 in the width direction X, orthogonal to the length direction, is V-shaped, with an angle θ7 of approximately 120 degrees between one side 161 and the other side 162 in the width direction X. This allows for easy arrangement of the extracted coffee beans near the bottom of the V-shape (near the boundary between one side 161 and the other side 162), facilitating observation of the roasting status of the coffee beans.

[0133] The handle 170 can be gripped by the thumb and middle finger. A first recess 175, corresponding to the thumb's curve, is located on the rear end of the upper surface of the handle 170. A second recess 176, longer and shallower than the first recess 175, is located on the rear end of the lower surface of the handle 170, assuming the middle finger rests on it at an angle. Furthermore, the cross-section of the handle 170 in the width direction X is approximately rhomboid in shape. Figure 22 Viewed from the rear side (right side), if right-handed, the index finger should be placed on the lower right side surface 170a; if left-handed, the index finger should be placed on the lower left side surface 170b for easier lower support. Furthermore, the key 150 is designed to... Figure 12 When the opening 631 of the roller shown is inserted into the inner bottom periphery (accumulation section) BA on the opposite side, Figure 19 The first and second recesses 175 and 176 are not inserted. Figure 12 The length of the opening 631 of the roller 6.

[0134] Explanation of reference numerals in the attached figures

[0135] 2,100: Coffee bean roaster; 3: Base; 3a: Part; 3b: Extension; 4: Support member; 5: Shaft; 6: Drum; 8: Portable gasket; 15: First plate; 15a: Both ends; 15b: Upper end; 16: Second plate; 16a: Both ends; 16b: Lower end; 16c: Central part; 17: Connecting part; 17a: Side; 17c: Upper end face; 23: Protrusion; 27: Ring; 31: Mounting part; 32: Edge; 33: Opening; 37: Connecting piece; 37a: One end 37b: The other end; 41: Support part; 42: Bearing part; 45: Shaft through periphery part; 51: Handle; 52: Mounting part; 56: Locking member; 61: First body part; 62: Second body part; 63: First cover part; 64: Second cover part; 64a: Inclined outer wall; 65: Ring member; 67: Notch part; 71: Handle; 71a: Upper surface; 71b: End; 71c: Side; 72: Cover part; 81: Furnace frame; 82: Burner; 83: Operating knob part; 84: Gas cylinder cover; 88: Gold Plate; 90: Support member; 90a: Main surface; 92: Support part; 92a: Upper end; 93: Heat avoidance part; 93a: Upper end; 97: Gas cylinder storage part; 150: Spoon; 160: Spoon body; 161: One side; 162: The other side; 170: Handle; 170a: Surface; 170b: Surface; 175: First recess; 176: Second recess; 311: Hole; 321: Groove; 333: Groove; 411: Groove; 421: Through hole; 421a: Inner surface; 611: Stirring blade; 612 : Inner surface; 631: Opening; 661: One end; 662: The other end; A1: Arrow; A2: Arrow; A61: Shaft; A62: Shaft; AA: Cut surface; BB: Cut surface; BA: Accumulation section; CF: Convection heat; D1: Thickness; D2: Thickness; PT: Symbol; S: Space; VL: Imaginary line; W1: Width; W2: Width; X: Width direction; θ1: Inclination angle; θ2: Inclination angle; θ3: Inclination angle; θ4: Angle; θ5: Inclination angle; θ6: Angle; θ7: Angle.

Claims

1. A coffee bean roaster, characterized in that, For roasting coffee beans, and the coffee bean roaster includes: A base, mounted on the furnace frame, has a mounting section; Supporting components are installed in the mounting portion; A shaft, passing through the support member and rotatable relative to the support member, and directly or indirectly supported by the support member; and The roller, with one end fixed to the shaft and the other end having an opening for the coffee beans to pass through, rotates by receiving the rotational force transmitted from the shaft. Either the base or the supporting member can be detachably fitted into the other of the base and the supporting member. The roller is supported on one side at one end. The coffee bean roaster has a handle that, when viewed from the support member, is connected to the support member on the side opposite to the drum. By connecting the handle and the support member in a separate state, a space is formed between the handle and the support member. The roller is removed from the base by holding the handle with one hand and removing the support member from the mounting portion.

2. The coffee bean roaster according to claim 1, wherein, The support member has: a support portion mounted on the mounting portion; and a bearing portion connected to the support portion and through which the shaft passes. With the support portion installed on the mounting portion, the shaft passing through the bearing portion extends from the bearing portion toward the roller in a direction away from the base.

3. The coffee bean roaster according to claim 1, wherein, When the support member is installed in the mounting part, it has a groove at its lower end for the furnace frame to fit into.

4. The coffee bean roaster according to claim 1 or 2, wherein, The shaft passes through the handle.

5. The coffee bean roaster according to claim 1 or 2, wherein, The coffee bean roaster further includes a cover that is positioned opposite the handle at a location away from the handle.

6. The coffee bean roaster according to claim 1, wherein, The base has a groove for fitting the furnace frame.

7. The coffee bean roaster according to claim 6, wherein, The base is octagonal. The slots are provided on portions of each side of the octagon.

8. The coffee bean roaster according to claim 1, wherein, When the support member is installed on the mounting portion, the support member has a heat avoidance portion that is located higher than the portion installed on the mounting portion, i.e., the support portion, for avoiding convective heat around the roller by tilting as a whole away from the roller.

9. The coffee bean roaster according to claim 8, wherein, With the support member installed in the mounting portion. The shaft extends away from the base from the through hole penetrating the support member toward the roller. The supporting member has the through hole on a side higher than the heat-avoiding portion. The heat-avoiding part and the through hole are inclined as a whole towards the side of the roller with the upper end of the heat-avoiding part as the base point.

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