JP2007104925A - Roasting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roasting apparatus having a desired exhaustion mechanism. <P>SOLUTION: A roasting object is charged in a cylindrical rotary drum 14 placed in horizontal state and is roasted by rotating the rotary drum 14. The roasting apparatus 10 having the above structure is provided with an exhaustion mechanism 60 to exhaust smoke generating in the roasting of the roasting object. The exhaustion mechanism 60 has an opening space 65 at the top and the smoke is moved toward the opening space 65 while preventing the leakage of the smoke from the bottom of the exhaustion mechanism 60. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a roasting apparatus, and more particularly to a home roasting apparatus for soybeans.

  Patent Document 1 describes a small-sized roasting apparatus that is easy to manufacture, inexpensive, and small by the present applicant. This roasting apparatus is a roasting apparatus for roasting a roasting object while rotating the rotating drum in a state where the roasting object is carried in a horizontally disposed cylindrical rotating drum, and the rotating drum Are formed at one end of the rotating drum body, an opening for carrying in and out the roasting object, a tapered part extending from the opening toward the other end of the rotating drum body, and the inner wall of the tapered part Attached to the guide member for guiding the roasting object to be carried out, a mesh part located between one end of the rotating drum body and the other end of the rotating drum body, and attached to the inner wall of the mesh part And a spiral stirrer extending from the guide member toward the other end of the rotating drum body.

  This roasting device can be manufactured without a special device in the rotating drum, and is therefore low in cost by suppressing the manufacturing cost, and does not take up space for carrying in and out the roasting object, and is small.

JP-A-2005-245206

  By the way, Patent Document 1 does not disclose what is disclosed about the downsizing of the internal structure of the roasting apparatus, and its exhaust mechanism and the roasting apparatus casing.

  Further, as a result of further research and development after the completion of the above invention, the present applicant has found that adjusting the exhaust efficiency of smoke generated during roasting can suppress the amount of electric power required during roasting.

  Then, this invention makes it a subject to provide a desired exhaust mechanism and the housing | casing for roasting devices accompanying it.

In order to solve the above problems, the present invention is a roasting apparatus that roasts a roasting object while rotating the rotating drum in a state where the roasting object is carried into an inverted cylindrical rotating drum. And
An exhaust mechanism for exhausting smoke generated during roasting of the roasting object;
The exhaust mechanism
An opening space is formed at the top,
The smoke is shaped to advance toward the opening space without leaking from the bottom of the exhaust mechanism.

  A roasting apparatus having such an exhaust mechanism has an excellent exhaust effect and can suppress the amount of power required for roasting.

Specifically, the exhaust mechanism has a general shape covering a cylindrical portion of the rotating drum,
A flat smoke collecting part is located at least on the upper side, and a flat smoke diffusion preventing upper part is located on the lower side. If it carries out like this, rotation of a rotating drum will play the role of a fan, it will be hard to fill with smoke in a roasting apparatus, and exhaust efficiency will be high.

In addition, when the said smoke collection part and smoke diffusion prevention upper part are integrally formed, there exists a merit that it is easy to process in the manufacture surface of an exhaust mechanism.

Further, the roasting apparatus of the present invention has a housing connected to the exhaust mechanism,
The housing includes an exterior part in which a plurality of holes are formed. Thereby, there also exists an effect that the heat dissipation effect increases.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic internal configuration diagram of a roasting apparatus 10 according to an embodiment of the present invention. The roasting apparatus 10 shown in FIG. 1 is roughly divided into a rotating drum 14 placed horizontally, a rod-shaped heater 26 positioned below the rotating drum 14, and a motor 42 capable of rotating the rotating drum 14 in both directions. Is done.

  The rotating drum 14 has, for example, a cylindrical size having a length a of about 90 mm to 120 mm (118 mm in this embodiment) and a diameter b of about 75 mm to 100 mm (83 mm in this embodiment). The rotating drum 14 is made of stainless steel such as SUS304. At one end of the rotating drum 14, a tapered portion 20 is formed with an inclination of 20 ° to 30 ° (22 ° in the present embodiment) with respect to the horizontal direction and a length of about 30 mm to 40 mm (35 mm in the present embodiment). is doing. At the other end of the rotating drum 14, a bottom 21 having a disc shape and a length of about 6 mm is formed. The central portion of the rotating drum 14 forms a net 16 that is woven into a stainless wire of about 0.8 m / m (see reference C) so that each opening is 3 mm to 4 mm, for example.

  The opening 23 of the tapered portion 20 has a diameter of, for example, 53 mm to 55 mm (54 mm in the present embodiment). The opening 23 is configured to allow both carry-in and carry-out of soybeans and the like.

  The net part 16 may be formed so that the stainless steel wire is arranged in a horizontal or vertical direction with respect to the bottom part 21, or may be arranged obliquely about 45 ° with respect to this. However, the latter is preferable in terms of easy rotation of soybeans or the like when the rotating drum 14 rotates.

  Inside the net 16, a stirring material 18 made of a stainless steel rod having a diameter of about 3 mm is spirally arranged. One end of the stirring member 18 is positioned at or near the bottom 21, the inside of the net 16 is wound in a strong spiral shape, and the other end is positioned slightly ahead of the boundary between the net 16 and the taper 20.

  The other end of the stirring member 18 is attached to the first surface of the guide portion 22 that guides the carry-out of peas and the like. The second surface of the guide portion 22 is attached to the inner wall of the tapered portion 20. As will be described later, the guide portion 22 is formed by rounding a trapezoidal stainless steel plate.

  One end of the connecting member 24 to the motor 42 side is connected to the center of the bottom portion 21. The other end of the connecting member 24 is accommodated in the mounting member 28 of the motor 42 via the heat insulating plate 12 that partitions the rotating drum 14 side and the motor 42 side.

  By providing the heat insulating plate 12, it is possible to prevent the radiant heat from the heater 26 from being transmitted to the motor 42 side and to roast the beans and the like efficiently. For this reason, the heat insulating plate 12 is formed with a through hole having a size that is necessary and sufficient to allow the connecting member 24 to pass therethrough. The connecting member 24 is preferably made of a heat insulating material such as glass fiber or ceramic.

  The mounting member 28 of the motor 42 includes, for example, an arch-shaped first portion 28a that accommodates the other end of the connecting member 24, and a rectangular second portion 28b that extends horizontally from the bottom of the first portion 28a. And a third portion 28c extending upward on the terminal side of the second portion 28b. The attachment member 28 is made of iron or the like.

  The first portion 28a is formed with a first through hole having the same size as the through hole of the heat insulating plate 12, and an oilless bush 32 having an open end, for example, is accommodated therein. Further, a screw hole for receiving one or more screws 38 for connecting the attachment member 28 and the heat insulating plate 12 is formed in, for example, the upper portion of the first through hole.

  The second portion 28b is formed with one or more openings 30 in order to reduce the weight of the mounting member 28 and improve the heat dissipation efficiency.

  The third portion 28 c is substantially the same shape as the first portion 28 a, and a second through hole through which the motor shaft 36 of the motor 42 is passed is formed. In addition, a screw hole for receiving one or more screws 40 that connect the attachment member 28 and the motor 42 is formed in, for example, the upper portion of the second through hole.

  The oilless bush 32 accommodates the other end of the connecting member 24 and a shaft 34 attached to the tip of the motor shaft 36. In order to efficiently rotate the rotating drum 14 by driving the motor 42, the shaft 34 and the connecting member 24 are slightly eccentric in the oilless bush 32.

  Shaking due to eccentricity is absorbed by the open end of the oilless bush 32. Furthermore, in order to prevent the heat on the rotating drum 14 side from being transmitted to the motor 42, in this embodiment, for example, a sliding portion is formed on the motor shaft 36 side of the shaft 34, and the shaft 34 side of the motor shaft 36. The shape corresponding to the inside of the sliding portion is reduced, and these contact surfaces are reduced.

  For example, the shaft 34 is shaped like the tip of a minus driver, for example, and the motor shaft 36 is like the head of a screw for a minus driver. In addition, the opening part orthogonal to the axial direction of the shaft 34 may be provided in the front-end | tip part of the shaft 34, and the split pin etc. corresponding to the said sliding part may be inserted there.

  Further, the structure, shape and the like of the attachment member 28 are not limited to the above example. For example, the motor shaft 36 and the shaft 34 may be connected by a coupling having excellent heat resistance. In this case, since the motor shaft 36 and the shaft 34 do not come into contact with each other, there is an advantage that heat is more difficult to be transmitted to the motor 42.

  Here, the rotation speed of the rotary drum 14 is, for example, 30 rpm. The motor 42 is electrically connected through a wiring 44 to a motor switch 46 that switches the rotation direction of the rotary drum 14. The motor switch 46 is provided with a knob 46c.

  The knob 46c may be switched to, for example, the region 46a side when roasting beans or the like, and may be switched to the region 46b side when carrying out beans or the like. In order to stop the driving of the motor 42, the knob 46c may be switched between the regions 46a and 46b. The motor switch 46 is actually attached to the casing side surface of the roasting apparatus 10 or the like.

  Near the mounting position of the motor switch 46, a heater switch 50 for switching on / off of the heater 26 is mounted. The heater switch 50 has a timer function, and is turned off, for example, 15 to 20 minutes after the heater 26 is turned on.

  The heater switch 50 is provided with a bell or the like for notifying that the heater 26 is turned off. The heater switch 50 is electrically connected to the heater 26 via a wiring 52.

  Here, the heater 26 is, for example, an electric heating tube such as a glass tube, a ceramic tube, or a far-infrared tube of 200 W to 400 W at 110 V, or a gas heater having the same thermal power as these. The diameter of the heater 26 is, for example, 10φ to 15φ (14φ in this embodiment). If such a heater 26 is used, the soybeans etc. will be heated with the radiant heat of about 400 to 600 degreeC.

  Alternatively, a smoke removing material 48 made of activated carbon or the like may be provided on the upper portion of the rotating drum 14 in order to remove smoke generated during roasting such as soybeans. In addition, a chaff receiving portion 54 that receives chaff of peas produced during roasting of peas may be optionally provided at the lower part of the rotating drum 14. The chaff receiving portion 54 is preferably a pull-out type and detachable from the main body of the roasting apparatus 10.

  The casing of the roasting device 10 is preferably separable in the vicinity of the heat insulating plate 12 so that the rotary drum 14 and the like can be cleaned. Further, for example, if the connecting member 24 has a double structure and is connected to each other with a pin or the like, the rotating drum 14 can be attached to and detached from the main body of the roasting apparatus 10 and cleaning can be performed more easily. preferable.

  Further, the casing of the roasting device 10 is screwed or the like inside to reduce external irregularities. Further, this casing has a double structure made of a stainless steel plate, a plated iron plate, and the like, so that the surface side of the casing is not easily heated. The upper part of the housing is provided with an exhaust port for exhausting smoke generated during roasting.

  Further, the opening 23 side of the housing is not so spaced from the opening 23 so that the soybeans carried from the opening 23 do not spill from the rotating drum 14. In addition, a door for carrying in and out soybeans slightly larger than the opening 23 is provided near the opening 23 of the housing.

  FIG. 2 is a view of the heater 26 and the rotating drum 14 shown in FIG. 1 as viewed from the axial direction. As described above, in the present embodiment, the rotational speed of the rotary drum 14 is, for example, 30 rpm. The heater 26 is, for example, an electric heating tube of 110 W and 200 W to 400 W. The diameter of the rotating drum 14 is 80 to 85 mm. The rotating drum 14 is rotated clockwise in FIG. 2 at the time of roasting.

  In the case of this condition, the preferable positional relationship between the rotating drum 14 and the heater 26 is that the center axis of the heater 26 is at the lower left position with respect to the center axis of the rotating drum 14. The horizontal length c between the center axis of the heater 26 and the center axis of the rotary drum 14 is, for example, 10 mm to 45 mm (in this embodiment, the heater 26 is 35 mm using a 300 W heater). The vertical length d is, for example, 40 mm to 65 mm (in this embodiment, the heater 26 is 45 mm using a 300 W heater).

  Further, when an exhaust mechanism described later is employed, it is desirable that the length c is 14 mm and the length d is 63 mm when the heater 26 is 250 W. In this case, the angle θ formed by the line segment connecting the central axis of the heater 26 and the central axis of the heater 26 with respect to the vertical line passing through the central axis of the heater 26 was 12 degrees.

  When the rotating drum 14 is rotated clockwise in FIG. 2 in order to roast the soybeans carried into the rotating drum 14, many beans are collected in the lower left direction in the rotating drum 14. For this reason, the beans are roasted efficiently.

  Actually, the rotational speed of the rotating drum 14, the wattage of the heater 26, the size of the rotating drum 14, and the positional relationship between the heater 26 and the rotating drum 14 are necessary to add about 3 times the cup. When the coffee beans were roasted, they could be roasted without causing uneven baking.

  In addition, when the central axis of the heater 26 is located at the lower left position with respect to the central axis of the rotary drum 14, the chaff of peas produced during roasting of the peas falls and adheres to the heater 26. Less to do.

  For this reason, it is suppressed that the chaff adhering to the heater 26 burns and unnecessary smoke is generated. Further, since the chaff is difficult to adhere to the heater 26, the heater 26 can be easily cleaned.

  FIG. 3A is a schematic perspective view of the rotating drum 14 shown in FIG. FIG. 3B is a plan view showing a state where the guide portion 22 is expanded. The guide portion 22 is formed, for example, by processing a stainless plate of 30 mm × 52 mm into a trapezoid shape and then rolling it in a mode in which the longitudinal direction is an axis.

  Specifically, a 30 mm × 52 mm stainless steel plate (0.5 mm thick) is processed into a shape as shown in FIG. For example, the length f to the length l are as follows. The length f is 30 mm, the length g is 16 mm, the length h is 2 mm, the length i is 5 mm, the length j is 10 mm, the length k is 12 mm, and the length l is 52 mm. In this way, the angle α is about 40 ° and the angle β is about 60 °. As shown in FIG. 3A, the guide portion 22 is rounded with the second side 22b as a base line using, for example, a press machine so that the interval e between the corners on the bottom side becomes, for example, 10 mm to 20 mm. That's fine.

  The first side 22a that will be positioned on the opening 23 side is longer than the third side 22c that faces the first side 22a. The fourth side 22d on the side connected to the tapered portion 20 has a relatively obtuse corner, and the opposing second side 22b has a relatively acute corner. The guide portion 22 is connected to the inner wall of the tapered portion 20 with the first side 22a facing the opening portion 23 while being shifted by about 15 ° to 40 ° (36 ° in the present embodiment) clockwise.

  When the guide part 22 is connected to the rotating drum 14 under the above conditions, the third side 22c of the guide part 22 and the opening part 23 are located on the same plane. If it is such a connection aspect, all the soybeans can be taken out from the inside of the rotating drum 14.

  Next, a method for roasting beans with the roasting apparatus 10 shown in FIG. 1 will be described. First, the door of the housing is opened, and a required amount of soybeans or the like is carried into the rotary drum 14 from the opening 23. Then close the door. Next, the knob 46c of the motor switch 46 is switched to the 46a side, and the heater switch 50 is turned on.

  As a result, the motor 42 is driven, the rotary drum 14 starts to rotate clockwise in FIG. 2, and the heater 26 is turned on to start heat radiation. The soybeans and the like carried into the rotating drum 14 are repeatedly moved through the rotating drum 14 to the bottom 21 side by the stirring material 18 and return to the opening 23 side by hitting the bottom 21. For this reason, it can be roasted with radiant heat from the heater 26 while stirring the soybeans.

  Thereafter, when about 15 to 20 minutes have elapsed since the start of roasting, a bell or the like provided in the heater switch 50 sounds and the heater 26 is turned off to notify the end of roasting. Subsequently, a container is installed below the door of the housing. Then, the door of the housing is opened, and the knob 46c of the motor switch 46 is switched from the 46a side to the 46b side.

  As a result, the rotating drum 14 starts to rotate counterclockwise in FIG. 2, and roasted soybeans and the like in the rotating drum 14 are moved to the opening 23 side in the rotating drum 14 by the stirring material 18. . And the soybeans etc. which reached | attained the induction | guidance | derivation part 22 are carried out from the rotating drum 14, being guided by the induction | guidance | derivation part 22, and enter into a container. By the above procedure, roasted beans that are not oxidized can be obtained.

  In fact, when any of the soybeans to be carried into the rotary drum 14 is marked and stirred, the soybeans reciprocate several times between the opening 23 side and the bottom 21 side. It was found that the mixture was sufficiently stirred.

  FIG. 4A is a perspective view of the exhaust member 60 used in a manner covering the cylindrical portion of the rotary drum 14 shown in FIG. FIG. 4B is a plan view from the opening space 65 side of FIG. The exhaust member 60 is formed by, for example, bending a rectangular stainless steel plate having a thickness of about 0.3 to 0.8 or a plated iron plate at a predetermined position, and opening and cutting the predetermined position. Created by.

  In the exhaust member 60, a rectangular opening space 65 having a short side length of 10 to 30 mm is formed at the center of the top. On each side in the longitudinal direction of the opening space 65, smoke collecting portions 62 and 63 that make an angle of, for example, 90 degrees are located. Below the smoke collectors 62 and 63 are located smoke diffusion preventing upper portions 61 and 64 that make an angle of, for example, 90 degrees. Under the diffusion preventing upper portions 61 and 64, there are located diffusion preventing lower portions 66 and 67 which form, for example, 135 degrees with respect to them. The smoke collecting portions 62 and 63 and the smoke diffusion preventing upper portions 61 and 64 are formed with a plurality of screw holes 68 through which screws for attaching them to a housing to be described later are passed.

  The angles, the shape of the opening space 65, the interval, the length of the diffusion prevention lower portions 66 and 67, and the like are mutually dependent, and other settings are changed by changing any of these settings. . After all, these conditions are not limited as long as smoke generated during roasting progresses toward the opening space 65 and does not advance between the smoke diffusion prevention lower portions 66 and 67.

  For example, the angle between the smoke collectors 62 and 63 and the smoke diffusion prevention upper portions 61 and 64 is such that the opening space 65 is 10 mm if the lower ends of the smoke diffusion prevention upper portions 61 and 64 are equal to or lower than the lower end of the rotary drum 14. Even in the case of about, it can be tolerated up to about 75 degrees.

  That is, under this condition, the smoke is appropriately exhausted from the opening space 65 without stagnation in the space formed by the exhaust member 60, so that it is visually observed that the smoke proceeds downward from between the smoke diffusion preventing upper portions 61 and 64. Can hardly be confirmed. Furthermore, it cannot be visually confirmed that smoke leaks from the gap between the diffusion preventing lower portions 66 and 67 of the roasting apparatus 10 and the casing. On the contrary, even if the angle between the smoke collecting parts 62 and 63 and the smoke diffusion preventing upper parts 61 and 64 is set to about 110 degrees, it is almost visually confirmed that the smoke proceeds downward from between the smoke diffusion preventing parts 61 and 64. Can not. The same applies to the case where the connecting portions between the smoke collecting portions 62 and 63 and the smoke diffusion preventing upper portions 61 and 64 are rounded. In this case, even when the amount of power of the heater 26 was approximately 200 W, sufficient roasting was possible.

  Incidentally, when the angle between the smoke collecting parts 62 and 63 and the smoke diffusion preventing upper parts 61 and 64 is set to 70 degrees or less, it has been confirmed that smoke is also exhausted from the periphery of the chaff receiving part 54. This means that the roasting apparatus 10 is filled with smoke and cannot be exhausted from the opening space 65. The koji extracted from koji beans roasted under these conditions was excessively soured that it was not accepted by everyone. In addition, the amount of power of the heater 26 is approximately 400 W. The same result was obtained when the shape of the exhaust mechanism 60 was not an prismatic shape as shown in FIG.

  On the other hand, when the angle between the smoke collecting parts 62 and 63 and the smoke diffusion preventing upper parts 61 and 64 is 120 degrees or more, the amount of smoke exhausted is relatively large. If it is for business use or outdoor use, it can be used sufficiently even under such conditions. However, it is generally unsuitable for home use. From the above considerations, it has been found that the interval between the opening spaces 65 is preferably set by the user.

  FIG. 5 is a schematic cross-sectional view of the state in which the rotary drum 14, the heater 26, and the exhaust mechanism 60 are accommodated in the housing as viewed from the opening 23 side. This casing is made of a solid columnar upper frame 70 and a square pipe-shaped upper frame 71 such as aluminum, and aluminum to which smoke diffusion preventing upper parts 61 and 64 are attached. A rectangular pipe-like lower frame 72, a prismatic lower frame 73 made of muku material, a prismatic foot parts 74, 75 made of muku material that receive the smoke diffusion prevention lower parts 66, 67, and the foot parts 74, 75 are mutually connected. And a square pipe-like floor portion 76 made of aluminum or the like. The exhaust mechanism 60 and the housing are fastened with screws 69. The upper frames 70 and 71, the lower frames 72 and 73, the feet 74 and 75, and the floor 76 are fastened by screws 81, respectively.

  Further, the housing includes upper frames 70 and 71, lower frames 72 and 73, frames corresponding to the feet 74 and 75, and the floor 76, which are located on the bottom 21 side of the rotary drum 14. Each of these corresponding frames is connected via a plurality of retaining portions 77 and columnar support beams 77 to 80 located on the back side thereof. Furthermore, this housing | casing also contains the exterior part mentioned later.

  Here, in this embodiment, in order to reduce the size of the roasting apparatus 10, the outline of the casing and the outline of the exhaust mechanism 60 are the same. An example of the size and position of each part of the housing is as follows.

The upper frame 70 has an outer shape of 10 mm square, a length of 144 mm,
The upper frame 71 has an outer shape of 10 mm square, a length of 164 mm,
The lower frame 72 has an outer shape of 10 mm square, a length of 164 mm,
The lower frame 73 has an outer shape of 10 mm square, a length of 144 mm,
The foot parts 74 and 75 are both 10 mm × 10 mm square on both sides, 75 mm in length,
The floor 76 is 114 mm × 140 mm (114 mm between the legs 74 and 75),
The distance between the beam part 78 and the beam part 79 and the distance between the beam part 77 and the beam part 80 are 71 mm, respectively.

  However, the shape of the housing can be various shapes as described later, and the dimensions are not limited to these.

  6 to 11 are a front view, a rear view, a left side view, a right side view, a plan view, and a bottom view of the appearance of the roasting apparatus 10, respectively.

  In FIG. 6, a cylindrical door portion 90 provided at a corresponding position of the rotary drum 14, an exterior portion 98 in which an opening corresponding to the door portion 90 is formed and covers each frame 70 to 73 side, The exterior part 99 which covers the part 74,75 and the bottom part 76 side, and the installation part 100, such as rubber | gum provided in the bottom face, are shown. The exterior portion 99 integrally covers the side surface of the chaff receiving portion 54 excluding the drawer surface.

  The door portion 90 includes a knob portion 91 that is gripped by the user when the door portion 90 is opened and closed, a ring portion 92 made of stainless steel or the like to which the knob portion 91 is attached, and a cylinder having the same outer diameter as the outer diameter of the ring portion 92. Connecting portion 93 (FIG. 8), shaft portion 94 serving as an opening / closing axis of door portion 90, quartz glass viewing window 95 for looking inside the housing, and door provided on the back side of knob portion 91. A stainless steel defining pin 97 that defines the maximum opening position of the portion 90 is provided.

  FIG. 7 shows a timer / switch unit 101 having a size and shape corresponding to the door 90. The timer / switch unit 101 includes a switch unit 106 that serves as both the motor switch 46 and the heater switch described above, a setting unit 107 that sets the heating time of the heater 26, and a setting time scale, and a switch unit. 106 is provided, and a cylindrical housing portion 108 (FIG. 8) in which the motor 42 and the like are housed, a connection wire 102 electrically connected to a commercial power source, and an end portion of the connection wire 102 are attached. And a wire receiving portion 103 for reducing the stress applied to the end portion.

  For example, the heater 106 and the rotating drum 14 are turned off in the center, and the switch unit 106 can be roasted when the heater 26 is turned on and the rotating drum 14 rotates forward when the one side is pressed. 26 is turned off and the rotating drum 14 rotates in the reverse direction, so that it can be carried out.

  8 to 10 show an exterior portion 110 that covers the slope between the frames 70 to 73. A plurality of punch holes 111 are formed in the exterior part 110 in order to increase the heat dissipation efficiency. For example, the punch holes 111 have a diameter of 1 mm and a pitch of 2 mm. 8 and 9 show an aluminum exterior portion 112 that covers the space between the foot portions 74 and 75 and the corresponding foot portions. Further, as shown in FIG. 9, for example, an iron drawer type chaff receiving portion 54 and a knob 55 for inserting and removing the chaff receiving portion 54 are located on the right side surface of the roasting apparatus 10. Furthermore, as shown in FIG. 10, a reference position portion 107 a is provided between the switch portion 106 and the setting portion 107 when determining the setting time of the heating time by the setting portion 107.

  FIG. 11 shows a state in which a total of four installation portions 100 are provided in the folded portion of the exterior portion 98. Adjacent to the wire receiving portion 103, an air hole 108a for correcting a temperature difference between the inside and outside of the timer / switch unit 101 due to heat generated by driving the motor 42 or the like is provided.

  In the present embodiment, the exterior portions 98 and 112, the connecting portion 93, the accommodating portion 108, the chaff receiving portion 54, and the like are made of stainless steel, aluminum, iron, or the like. By selecting such a material, the roasting apparatus 10 has an effect of being excellent in design in that a metallic luster can be obtained. Furthermore, the shape of the roasting apparatus 10 has the effect of cooling the heat generated during use of the apparatus and enabling the downsizing of the apparatus, as well as the design effect that the shape itself has novelty and originality. Also have.

  FIG. 12A to FIG. 12G show modified examples of the appearance of the roasting apparatus 10. In the present embodiment, the roasting device 10 shown in FIG. 12 employs the exhaust mechanism and the exterior part described above. In the case of various modifications shown in FIG. 12 as well, the effect of cooling the heat generated when the apparatus is used can be enhanced without significantly increasing the size of the roasting apparatus shown in FIG.

  In this embodiment, the case where roasted beans are mainly described as an example, but the roasting target may be soybean, ginkgo, corn, chestnut, wheat, Nanjing beans, sunflower seeds, watermelon seeds, etc. . Further, the dimensions and the like of the above-described parts are assumed to be that the roasting apparatus 10 is for home use and roasts about 3 cups of coffee beans. Therefore, when the roasting apparatus 10 is for business use, for example, the design change may be made such as increasing the length a of the rotating drum 14 or changing the heater 26 to an S-shaped continuous curve.

  It can be used for roasting persimmons, soybeans, ginkgo, corn, chestnuts, wheat, Nanjing beans, sunflower seeds and watermelon seeds.

It is a typical lineblock diagram of roasting device 10 of an embodiment of the present invention. It is the figure which looked at the heater 26 and the rotating drum 14 shown in FIG. 1 from the axial direction. It is a typical perspective view of the rotating drum 14 shown in FIG. 2 is a perspective view and a plan view of the exhaust member 60. FIG. FIG. 4 is a schematic cross-sectional view of a state in which a rotating drum 14, a heater 26, and an exhaust mechanism 60 are housed in a housing as viewed from the opening 23 side. 1 is a front view of the appearance of a roasting device 10. FIG. 2 is a rear view of the appearance of the roasting apparatus 10. FIG. It is a left view of the external appearance of the roasting apparatus. It is a right view of the external appearance of the roasting apparatus. 1 is a plan view of the appearance of a roasting device 10. 2 is a bottom view of the appearance of the roasting apparatus 10. FIG. It is a modification of the external appearance of the roasting apparatus 10.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Roasting apparatus 12 Heat insulation board 14 Rotating drum 16 Net | network part 18 Stirring material 20 Taper part 21 Bottom part 22 Guide part 23 Opening part 24 Connecting member 26 Heater 28 Mounting member 28a 1st part 28b 2nd part 28c 3rd part 30 Opening 32 Oilless bush 34 Shaft 36 Motor shaft 38, 40 Screw 42 Motor 44, 52 Wiring 46 Motor switch 46a, 46b Area 46c Knob 48 Smoke removal material 50 Heater switch 54 Chaff receiving part 60 Exhaust member 61, 64 Diffusion prevention Upper part 62, 63 Smoke collecting part 65 Opening space 66, 67 Diffusion prevention lower part 70, 71 Upper frame 72, 73 Lower frame 74, 75 Foot part 76 Floor part

Claims (4)

A roasting apparatus for roasting a roasting object while rotating the rotating drum in a state where the roasting object is carried into an inverted cylindrical rotating drum,
An exhaust mechanism for exhausting smoke generated during roasting of the roasting object;
The exhaust mechanism
An opening space is formed at the top,
The roasting apparatus is configured such that the smoke advances toward the opening space without leaking from the bottom of the exhaust mechanism. The exhaust mechanism has a general shape covering a cylindrical portion of the rotating drum,
The roasting apparatus according to claim 1, wherein a flat smoke collecting part is located at least on the upper side and a flat smoke diffusion preventing upper part is located on the lower side.   The roasting apparatus according to claim 2, wherein the smoke collection part and the smoke diffusion prevention upper part are integrally formed. A housing connected to the exhaust mechanism;
The roasting apparatus according to any one of claims 1 to 3, wherein the casing has an exterior part in which a plurality of holes are formed.

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