Cremation equipment

Abstract

The purpose is to make it difficult for air to circulate between the space above the edge of the trolley and the space below the edge of the trolley when the trolley is stopped inside the furnace during cremation. [Solution] The wall (4) of the crematorium furnace is provided with a protruding wall portion (4b) that faces upward and inward relative to the edge of the trolley (10) at the stopping position of the trolley inside the furnace. The rail group (93) laid in the crematorium furnace is provided with a guide rail (R) that guides the trolley at a height lower than the height at the stopping position, a front stop rail (r1) that guides the front side of the trolley at the stopping position, and a rear stop rail (r2) that guides the rear side of the trolley at the stopping position. The front stop rail and the rear stop rail have an inclination that rises as they move from an adjacent position to the stopping position. Due to the inclination, the edge of the trolley is closer to the lower surface of the protruding wall portion at the stopping position than at the adjacent position.

Description

Technical Field

[0001] The present invention relates to cremation equipment in which, when a coffin is burned inside a furnace body, the vertical gaps between the protruding portion from the wall of the furnace body and the edge of the carriage are narrowed.

Background Art

[0002] As an example of conventional cremation equipment, it includes a carriage receiving portion protruding from the wall on the inner surface of the furnace body, a rail laid inside the furnace body, and a carriage that travels on the rail, and a recess is formed at the position where the carriage stops among the rails (Patent Document 1). When the wheels of the carriage reach the recess, the carriage descends by the amount of the recess of the recess. As a result, the edge of the carriage approaches so as to overlap on the carriage receiving portion, and it becomes difficult for air to flow back and forth between the space located above the carriage (combustion space) and the space located below the carriage (bottom space). During cremation, the temperature of the bottom space is made as low as possible compared to the temperature of the combustion space, for example, to make it difficult to burn out the wheels of the carriage and the like.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to make it difficult for air to flow back and forth between the bottom space and the combustion space by a configuration different from the above-described configuration when the carriage is stopped inside the furnace body during cremation.

Means for Solving the Problems

[0005] The cremation equipment of the present invention comprises a crematorium furnace including a furnace body with an entrance formed at its front, a door for opening and closing the entrance, and a group of rails laid in a manner that extends forward and backward; and a trolley whose front-to-back direction is opposite to that of the crematorium furnace, which is brought into the furnace body from the entrance and carries a coffin, and which includes a group of wheels guided by the rails. The furnace body includes a wall in which an entrance is formed. The wall has a protruding wall portion that faces upward relative to the edge of the trolley at the trolley's stopping position inside the furnace body and protrudes toward the interior of the furnace body. The rails include a guide rail that guides the trolley from the entrance into the crematorium furnace at a height lower than the height at the stopping position, a front stop rail that guides the front of the trolley at the stopping position, and a rear stop rail that guides the rear of the trolley at the stopping position. The front stop rail and the rear stop rail have an incline that rises from an adjacent forward position inside the furnace body relative to the stopping position toward the stopping position.

[0006] The wheel group comprises front and rear wheels that run on guide rails, a rear stop wheel that runs on a rear stop rail, and a front stop wheel that runs on a front stop rail. A desirable example of the wheel group is that the front stop wheel is a dedicated part that runs only on the front stop rail, unlike the front wheel.

[0007] Another desirable example of a wheelset is one where the front wheels also serve as the front stop wheels, making them dual-purpose wheels that run on both the guide rail and the front stop rail.

[0008] A desirable example of a front stop rail is that, when viewed from above, it is positioned on the extension of the guide rail on which the front wheels travel. [Effects of the Invention]

[0009] According to the present invention, by utilizing the inclination of the front stop rail and the rear stop rail, the trolley is positioned above the height of the guide rail at the stopping position. As a result, the gap between the protruding wall and the edge of the trolley narrows at the stopping position, making it difficult for air to circulate between the space above the edge of the trolley and the space below the edge of the trolley. [Brief explanation of the drawing]

[0010] [Figure 1] A perspective view showing a cremation facility according to the first embodiment of the present invention. [Figure 2] A longitudinal cross-sectional view of the cremation equipment according to the first embodiment. [Figure 3] Cross-sectional view along line III-III in Figure 2. [Figure 4] A plan view showing the relationship between the rail group and the wheel group in the cremation equipment of the first embodiment. [Figure 5] Figures (A) and (B) are a plan view and a side view showing the relationship between the rail group and the wheel group in the cremation equipment of the second embodiment. [Figure 6] Figures (A) and (B) are a plan view and a side view showing the relationship between the rail group and the wheel group in the cremation equipment of the third embodiment. [Figure 7] Figures (A) and (B) are a plan view and a side view showing the relationship between the rail group and the wheel group in the cremation equipment of the fourth embodiment. [Figure 8] A plan view showing the relationship between the rail group and the wheel group in the cremation equipment of the fifth embodiment. [Modes for carrying out the invention]

[0011] The cremation equipment of the first embodiment of the present invention comprises a crematorium furnace 1 and a trolley 10 for carrying a coffin, as shown in Figures 1 to 3. In this embodiment, the cremation equipment is equipped with a transport vehicle (not shown) for carrying the trolley 10. The transport vehicle moves around the crematorium with the trolley 10 on it. The trolley 10 is moved forward to be brought into the crematorium furnace 1 from the front and moved backward to be removed from the crematorium furnace 1. Therefore, in the following description, the front-to-back direction used for the crematorium furnace 1 and the front-to-back direction used for the trolley 10 are in opposite directions.

[0012] The crematorium 1 comprises a furnace body 2 that accommodates a trolley 10 and has an entrance 1a formed at its front, a door 7 that can open and close the entrance 1a, a main burner 8 installed at the bottom of the furnace body 2, and a transport device 9 that transports the trolley 10 inside and outside the furnace body 2. Although not shown, the crematorium 1 also comprises an opening and closing mechanism for opening and closing the door 7, a re-burner installed at the top of the furnace body 2, and a metal frame surrounding the furnace body 2. The lower part of the furnace body 2 and the door 7 cooperate to form a combustion chamber for burning the coffin. When the coffin is burned by the burner 8 in the combustion chamber, exhaust gas is generated. The exhaust gas is burned once in the combustion chamber. The upper part of the furnace body 2 is a afterburning chamber that burns the exhaust gas sent from the combustion chamber again with an afterburner.

[0013] The furnace body 2 is in the shape of a substantially rectangular parallelepiped box. The furnace body 2 includes a floor 3, a wall 4 standing up from the floor 3, a ceiling 5 of the combustion chamber, and a ceiling (not shown) of the afterburning chamber.

[0014] The ceiling 5 is formed in the middle part of the height of the wall 4. The ceiling 5 vertically partitions the inside of the combustion chamber and the inside of the afterburning chamber. A through hole h1 is formed in the ceiling 5 to allow the inside space of the combustion chamber and the inside space of the afterburning chamber to communicate with each other. The ceiling of the afterburning chamber is formed at the upper end of the wall 4. A through hole (not shown) for passing the exhaust gas after afterburning is formed in the afterburning chamber.

[0015] The wall 4 is rectangular in plan view. The wall 4 includes a front wall 41 and a rear wall 42 facing each other front and back, and side walls 43 facing each other left and right.

[0016] The front wall 41 is installed at a distance above the floor 3 and forms the front surface of the upper part (afterburning chamber) of the furnace body 2. In this embodiment, the lower end of the front wall 41 is located below the ceiling 5. An entrance 1a is formed between the front wall 41 and the floor 3 to allow the inside and outside of the furnace body 2 to communicate in the front-rear direction. The carriage 10 is taken in and out through the entrance 1a. A door 7 is arranged on the front side of the entrance 1a. The opening and closing mechanism moves the door 7, for example, in the vertical direction to enable the entrance 1a to be opened and closed.

[0017] The rear wall 42 and the left and right side walls 43 stand up from the floor 3. The rear wall 42 forms the rear surface of the furnace body 2, and the left and right side walls 43 form the left and right side surfaces of the furnace body 2. A burner 8 is installed at the lower part of the rear wall 42 via a frame. An afterburner is also installed at the upper part of the rear wall 42 via a frame. A through hole h2 for passing the tip of the burner 8 is formed in the rear wall 42. Details of the wall 4 will be described later.

[0018] The conveying device 9 is installed on the floor 3. The conveying device 9 is installed across the inside and outside of the furnace body 2 in a state of penetrating the inlet 1a back and forth. The conveying device 9 includes a conveying mechanism 91 capable of advancing and retreating the carriage 10, a case 92 for housing the conveying mechanism 91, and a rail group 93 laid on the upper surface of the case 92.

[0019] The conveying mechanism 91 includes a pair of connectors 91a and 91b that can be connected and disconnected, and a conveyor 91c capable of advancing and retreating one of the connectors 91a. Note that the other connector 91b is fixed to the carriage 10. One of the connectors 91a is fixed to the conveyor 91c and protrudes upward from a slit 92s formed on the upper surface of the case 92. The conveyor 91c is housed in the case 92. Also, the conveyor 91c is provided with a brake (not shown). The brake holds the carriage 10 (one of the connectors 91a) immovable back and forth at the stop position inside the furnace body 2 during cremation.

[0020] The rail group 93 is composed of a plurality of rails extending along the front-rear direction. The rail group 93 includes a guide rail R for guiding the carriage 10 from the inlet 1a into the cremation furnace 1, and a front stop rail r1 and a rear stop rail r2 for guiding the carriage 10 guided by the guide rail R upward from the guide rail R toward the stop position. In the present embodiment, the front stop rail r1, the rear stop rail r2, and the guide rail R are all two (a pair) in a set and are arranged symmetrically left and right.

[0021] The guide rail R guides the carriage 10 at a height lower than the height at the stop position supported by the front stop rail r1 and the rear stop rail r2. The upper surface of the guide rail R allows the carriage 10 to travel horizontally. The carriage 10 is at a constant height while being guided by the guide rail R.

[0022] The front stop rail r1 guides the front of the trolley 10 at the stopping position. In this embodiment, the front stop rail r1 is located on the extension of the guide rail R when viewed from above, and is continuous with the rear of the guide rail R (see Figure 4). Therefore, the front stop rail r1 and the guide rail R are a single rail. The front end of the upper surface of the front stop rail r1 is at the same height as the rear end of the upper surface of the guide rail R, and the rear end of the upper surface of the front stop rail r1 is higher than the rear end of the upper surface of the guide rail R. The upper surface of the front stop rail r1 is inclined with respect to the horizontal and is an inclined surface that rises as it moves towards the rear inside the furnace body 2. When the trolley 10 is moved forward, the front stop rail r1 guides the trolley 10 while rising as it moves towards the rear inside the furnace body 2.

[0023] The pair of rear stop rails r2 are positioned to the left and right of the pair of guide rails R when viewed from above (see Figure 4). The rear stop rails r2 guide the rear of the trolley 10 at the stopping position. The rear stop rails r2 are positioned in front of the front stop rail r1 inside the furnace body 2. When viewed from above, the rear stop rails r2 are positioned off the extension of the guide rails R and are parallel to the guide rails R. The front end of the upper surface of the rear stop rails r2 is at the same height as the upper surface of the guide rails R, and the rear end of the upper surface of the rear stop rails r2 is higher than the upper surface of the guide rails R. The upper surface of the rear stop rails r2 is also inclined with respect to the horizontal and is an inclined surface that rises as it moves towards the rear inside the furnace body 2. The rear stop rails r2 are positioned in front of the front stop rail r1 inside the furnace body 2. When the trolley 10 is moved forward, the rear stop rails r2 also guide the trolley 10 as it moves towards the rear inside the furnace body 2, rising as it goes. The inclination angles of the rear stop rails r2 and the front stop rails r1 are the same.

[0024] The wall 4 comprises a main wall portion 4a formed over the entire height range of the combustion chamber, and a protruding wall portion 4b that extends from the main wall portion 4a toward the interior of the furnace body 2 at a position above the floor 3. In this embodiment, the protruding wall portion 4b is formed over the entire height range (total height) of the upper part of the combustion chamber in the vertical direction. Also in this embodiment, the protruding wall portion 4b is formed over the entire length of the wall 4 other than the front wall 41 when viewed from above. The lower surface of the protruding wall portion 4b faces upward relative to the edge of the trolley 10 at the stopping position. The protruding wall portion 4b comprises a packing P that constitutes the lower surface of the protruding wall portion 4b and a refractory block B that constitutes the upper side of the packing P. The packing P is more flexible than the refractory block B. Details of the main wall portion 4a and the protruding wall portion 4b are as follows. The main wall portion 4a comprises a front wall portion 41a, a rear wall portion 42a, and left and right side wall portions 43a. The protruding wall portion 4b comprises a rear wall protruding wall portion 42b and left and right side wall protruding wall portions 43b.

[0025] The side wall 43 comprises a side wall main body portion 43a and a side wall protruding wall portion 43b. In this embodiment, the portion of the side wall main body portion 43a below the side wall protruding wall portion 43b is visible from inside the combustion chamber and has a uniform thickness in the left-right direction.

[0026] The rear wall 42 comprises a rear wall main body portion 42a and a rear wall protruding wall portion 42b. In this embodiment, the portion of the rear wall main body portion 42a below the rear wall protruding wall portion 42b is visible from inside the combustion chamber and has an uneven thickness in the front-to-back direction. Specifically, the upper part of the lower portion protrudes further into the furnace body 2 than the lower part of the lower portion.

[0027] The trolley 10 is movable back and forth along the rail group 93. As mentioned above, the back and forth direction in the description of the trolley 10 is the exact opposite direction to the back and forth direction in the description of the crematorium furnace 1. The trolley 10 comprises a tray 11 on which the coffin is placed, a trolley body 12 on which the tray 11 is placed, a group of wheels 13 that are rotatably supported on the bottom side of the trolley body 12, and a door support part 14 that protrudes rearward from the trolley body 12 and supports the door 7 from below.

[0028] The receiving tray 11 is rectangular in plan view. The receiving tray 11 is made of a fire-resistant material that can withstand the high temperatures during cremation. The upper part of the receiving tray 11 protrudes to the left and right more than the lower part of the receiving tray 11. In this embodiment, the front edge and the left and right side edges of the trolley 10 are formed by the receiving tray 11, and at the stopping position of the trolley 10, they face the lower surface of the protruding wall portion 4b and are in close contact in this embodiment. When the trolley 10 is located in a position adjacent to the front of the furnace body 2 relative to the stopping position, a gap G is formed between the edge of the trolley 10 and the protruding wall portion 4b (see Figure 1).

[0029] The trolley body 12 comprises a base plate 12a on which the receiving tray 11 is placed, a receiving frame 12b that stands upright along the outer circumference of the base plate 12a and accommodates the lower part of the receiving tray 11, and a wheel support section 12c that is fixed to the bottom surface of the base plate 12a and rotatably supports each wheel of the wheel group 13. The wheel support section 12c is composed of bearings and fixing brackets that secure the bearings to the bottom surface of the base plate 12a.

[0030] The door support portion 14 consists of a support portion body 14a that protrudes rearward from the bogie body 12, and a packing P1 fixed on the support portion body 14a and enhancing airtightness with the door 7. The packing P1 is more flexible than the support portion body 14a. The door support portion 14 is the rear edge of the edge of the bogie 10. In this embodiment, the packing P1 faces and is in close contact with the lower surface of the door 7.

[0031] The wheel group 13 includes a front wheel T1 and a rear wheel T2 that travel along the guide rail R, a front stop wheel t1 that travels along the front stop rail r1, and a rear stop wheel t2 that travels along the rear stop rail r2. In this embodiment, the front wheel T1 travels along both the guide rail R and the front stop rail r1, and therefore also functions as a front stop wheel t1. In other words, in this embodiment, the front wheel T1 and the front stop wheel t1 are the same thing and are multi-purpose. The rear wheel T2 is a dedicated part that travels only along the guide rail R, and the rear stop wheel t2 is a dedicated part that travels only along the rear stop rail r2. The front wheel T1 (front stopping wheel t1) and the rear wheel T2 are positioned far apart front to back. The front stopping wheel t1 (front wheel T1) and the rear stopping wheel t2 are also positioned far apart front to back. In this embodiment, the front wheel T1 (front stopping wheel t1), the rear wheel T2, and the rear stopping wheel t2 have the same configuration and the same mounting height. Therefore, when the front wheel T1 (front stopping wheel t1), the rear wheel T2, and the rear stopping wheel t2 travel on a horizontal rail, the height at which they contact the rail is the same. At the stopping position, the front stopping wheel t1 (front wheel T1) and the rear stopping wheel t2 are supported by the front stopping rail r1 and the rear stopping rail r2, respectively, but the rear wheel T2 is floating (away) above the guide rail R. In this embodiment, as mentioned above, the trolley 10 is placed on the transport vehicle. When moving around the crematorium, the wheels of the transport vehicle travel on the floor 3, but the wheel group 13 of the trolley 10 does not touch the floor 3.

[0032] In the first embodiment of the cremation equipment, when the trolley 10 is guided by the guide rail R, the edge of the trolley 10 faces the lower surface of the protruding wall portion 4b, and a gap G is formed between the edge of the trolley 10 and the protruding wall portion 4b in the vertical direction. When the trolley 10 moves forward and is guided by the front stop rail r1 and the rear stop rail r2, the inclination (inclined surface) of the front stop rail r1 and the rear stop rail r2 causes the trolley 10 to be positioned above the height on the guide rail R at the stopping position. Compared to the state when it is guided by the guide rail R, the gap G between the protruding wall portion 4b and the edge of the trolley 10 narrows, and the protruding wall portion 4b and the edge of the trolley 10 overlap and come into close contact. Also, when the door 7 is lowered, the lower surface of the door 7 and the door support portion 14 overlap and come into close contact. Therefore, it becomes difficult for air to move between the space above the edge of the trolley 10 and the space below the edge of the trolley 10. As a result, the bottom of the trolley 10 and the transport device 9 are less likely to be burned. In addition, ash and foreign matter generated during combustion tend to adhere to the top surface of objects but not to the bottom surface, so the underside of the protruding wall portion 4b is less likely to get dirty, and cremation can be performed for a long period of time in a highly airtight state.

[0033] The following describes an embodiment of the cremation equipment in which the relationship between the rail group 93 and the wheel group 13 differs from that of the first embodiment. As shown in Figure 5, in a plan view, the cremation equipment of the second embodiment has a front stop rail r1 positioned off the extension of the guide rail R and parallel to the guide rail R. The front stop rail r1 is positioned in front of the rear end of the guide rail R inside the furnace body 2. The rear stop rail r2 is positioned off the extension of the front stop rail r1 and parallel to the front stop rail r1. The front end of the upper surface of the front stop rail r1 and the front end of the upper surface of the rear stop rail r2 are located below the upper surface of the guide rail R. The rear end of the upper surface of the front stop rail r1 and the rear end of the upper surface of the rear stop rail r2 are located above the upper surface of the guide rail R. The front wheels T1 and rear wheels T2 are dedicated to running only on the guide rail R. The front stop wheel t1 is dedicated to running only on the front stop rail r1, and the rear stop wheel t2 is also dedicated to running only on the rear stop rail r2.

[0034] As shown in Figure 6, the cremation equipment of the third embodiment is mounted such that the front stopping wheel t1 travels at a higher position than the front wheel T1 and the rear wheel T2. The rear stopping wheel t2 is mounted so that it travels at a lower position than the front wheel T1 and the rear wheel T2. The upper surface of the front stop rail r1 is above the upper surface of the guide rail R. The upper surface of the rear stop rail r2 is below the upper surface of the guide rail R. The front stop rail r1 and the rear stop rail r2 are positioned on the same straight line extending in the front-to-back direction when viewed from above. The front stop rail r1 is positioned further back inside the furnace body 2 than the guide rail R, and is also positioned off the extension of the guide rail R.

[0035] As shown in Figure 7, in the cremation equipment of the fourth embodiment, the front wheel T1 is also used as the front stopping wheel t1, and the rear wheel T2 is also used as the rear stopping wheel t2. Rail group 93 is equipped with guide rails R on which the front wheels T1 and rear wheels T2 travel separately. When viewed from above, the front wheel rail R1, which serves as the guide rail R on which the front wheel T1 travels, and the rear wheel rail R2, which serves as the guide rail R on which the rear wheel T2 travels, are parallel and arranged on different straight lines. In addition, the front stop rail r1 is continuous behind the front wheel rail R1, and the front wheel rail R1 and the front stop rail r1 are a single rail. The rear stop rail r2 is continuous behind the rear wheel rail R2, and the rear wheel rail R2 and the rear stop rail r2 are a single rail.

[0036] The cremation equipment of the fifth embodiment has a three-wheeled trolley 10. As shown in Figure 8, the wheel group 13 comprises one front wheel T1 and two rear wheels T2. The front wheel T1 is a dual-purpose wheel that also serves as the front stopping wheel t1. The rear wheels T2 are dual-purpose wheels that also serve as the rear stopping wheels t2. There are three guide rails R. One guide rail R is the front wheel rail R1 on which the front wheel T1 travels, and the other rail is the rear wheel rail R2 on which the rear wheel T2 travels. The front stop rail r1 is continuous behind the front wheel rail R1. The rear stop rail r2 is continuous behind the rear wheel rail R2.

[0037] The present invention is not limited to the above embodiments and can be modified as appropriate without departing from its spirit. For example, in the above embodiment, the crematorium 1 had a transport device 9 installed on the floor 3 and a group of rails 93 installed on the upper surface of the transport device 9, but the present invention is not limited to this and the group of rails 93 may be laid directly on the floor 3. Also, in the first embodiment, the trolley 10 was a dual-purpose trolley in which the front wheels T1 also served as the front stopping wheels t1, but the present invention is not limited to this and may have a dedicated front wheel T1 that runs only on the guide rail R, in addition to the dual-purpose front wheel T1. Also, in the above embodiment, the door 7 was configured to be in close contact with the door support portion 14 of the trolley 10, but the present invention is not limited to this and may have a configuration that lowers until it reaches the floor 3. [Explanation of Symbols]

[0038] 10 carts 11. Drip tray 12 Bogie Body 12a substrate 12b Receiving frame 12c Wheel support part 13 Wheel group T1 Front Wheel T2 rear wheel t1 Front stopping wheel t2 Rear stop wheel 14 Door support section 14a Support body 1 Crematorium 1a entrance 2 Furnace body 3 beds 4 walls 41 Front wall 42 Back wall 43 Side wall 4a Wall body 4b Projecting wall part 41a Front wall main body 41b Front wall protruding wall part 42a Rear wall main body 42b Rear wall protruding wall part 43a Side wall main body 43b Side wall protruding wall part 5 Main fuel ceiling B Fire-resistant block P,P1 packing h1, h2 through holes G Gap 7 doors 8 burners 9. Conveying device 91 Conveying mechanism 91a,91b coupler 91c Conveyor 92 cases 92s Slit 93 Rail Groups R Guide Rail R1 Front Wheel Rail R2 Rear Wheel Rail r1 Front stop rail r2 Rear stop rail

Claims

1. A crematorium includes a furnace body with an entrance formed at the front, a door for opening and closing the entrance, and a group of rails laid extending forward and backward. The front and rear directions are oriented in the opposite direction to the crematorium, and the trolley that is brought into the interior of the furnace from the entrance and carries the coffin, and includes a trolley with wheels that is guided by a group of rails, The furnace body has a wall with an inlet formed therein. The wall has a protruding wall portion that faces upward relative to the edge of the trolley at the trolley's stopping position inside the furnace body and extends inward into the furnace body. The rail system includes a guide rail that guides the trolley from the entrance into the crematorium at a height lower than the height at the stopping position, a front stop rail that guides the front of the trolley at the stopping position, and a rear stop rail that guides the rear of the trolley at the stopping position. A cremation facility characterized in that the front stop rail and the rear stop rail have an inclination that rises from an adjacent position in front of the furnace body towards the stop position relative to the stop position.

2. The wheel group comprises front and rear wheels that run on guide rails, rear stopping wheels that run on rear stopping rails, and front stopping wheels that run on front stopping rails. The cremation equipment according to claim 1, characterized in that the front stopping wheels are specially designed to run only on the front stopping rail, unlike the front wheels.

3. The wheel group comprises front and rear wheels that run on guide rails, rear stopping wheels that run on rear stopping rails, and front stopping wheels that run on front stopping rails. The cremation equipment according to claim 1, characterized in that the front wheels also serve as front stopping wheels and are dual-purpose equipment that runs on guide rails and front stopping rails.

4. The cremation equipment according to claim 1, 2, or 3, characterized in that, when viewed from above, the front stop rail is positioned on the extension of the guide rail on which the front wheels travel.

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