JPH08324744A - Belt conveyor - Google Patents

Abstract

PURPOSE: To facilitate attachmentdetachment of an endless belt, and to increase the allowable weight of an article to be carried erecting a sub leg part on the lower end of a return roller holding member, providing a first locking member to lock one end of a frame supporting member, and providing a second locking member to lock the other end of the frame supporting member on a frame side wall part. CONSTITUTION: A sub leg part 6 is fixed to the lower part of a return roller holding member 4, and a first locking part 8 is provided on the other end, and one end of a frame supporting member 7 is turnably and pivotably supported. The other end of the frame supporting member 7 is fixed in an attachable/detachable manner by a second locking part 9 of a side wall of a frame 2. When an endless belt 113 is removed from a belt conveyor 1, a fixing knob 10 is turned to release the frame supporting member 7, and a fixing knob 17b is loosened to turn and raise a roller bracket bearing unit 15 together with a tail roller 110. A tension roller 111 is removed. Even a heavy article can be smoothly carried, and the endless belt 113 can be easily removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt conveyor capable of easily attaching and detaching an endless belt and capable of carrying from lightweight to heavy objects, and more particularly to a belt conveyor for carrying foodstuffs and the like requiring hygienic safety. Is.

[0002]

2. Description of the Related Art In recent years, belt conveyors have been used in various industries to continuously convey raw materials, intermediate products and products in a fixed direction. For example, even in the food industry, a belt conveyor is frequently used in each process in a food processing factory. These belt conveyors are required to produce food hygienically by preventing germs and the like and at the same time mass-produce it with high productivity. Therefore, in the conventional belt conveyor, in order to remove scraps, chips, etc. of food etc. attached during the production of processed food, and to clean the endless belt and frame, etc., the endless belt can be easily attached and detached and the conveyor can be cleaned and maintained. A portable type conveyor that is simple and suitable for improving productivity, work efficiency, streamlining production lines, etc. has been developed and commercialized. For conventional belt conveyors below,
This will be described with reference to the drawings. FIG. 8 is a perspective view showing a state in which an endless belt of a conventional portable type belt conveyor is attached. Reference numeral 100 is a conventional portable type belt conveyor. Reference numeral 101 denotes a long frame formed of a steel plate or the like with an inverted U-shaped cross section and having vertical side walls on both sides,
Reference numeral 101a denotes a frame connecting member which is connected to the frame 101, is orthogonal to the longitudinal direction of the frame 101, penetrates a side wall of the frame 101, and is fixed to a leg portion 102 described later by welding or the like, and 102 is an L-shaped frame connecting member. 101
a pair of legs made of a tubular pipe made of iron or the like that cantilever-supports a;
02 for supporting the lower part, and 102b for the leg 1
02 is a jacky bolt that is arranged on the lower end side wall portion of 02 and is fixed when the belt conveyor 100 is installed. Also 103
Are tail side wall portions extending on both side walls of both ends of the frame 101 in the longitudinal direction. Reference numeral 104 denotes a main roller receiving member made of a rope plate or the like for supporting a drive roller 105, which will be described later, attached downward from the side wall of the central portion of the frame 101,
Reference numeral 105 denotes a drive roller rotatably supported by the main roller receiver 104, and 106a is a chain (FIG. 6) which is fixed from the side of the central portion of the frame 101 to the upper side and rotates a sprocket (not shown) of the drive roller 105. (Not shown) a drive unit chain cover, 106b is a drive motor including a gear motor, 106c is a speed controller for controlling the drive motor 106b, and a control box 106 is provided with a switch for external control.
d is the drive motor 106b and the speed controller 106
It is a housing containing c and the like. Reference numeral 107 denotes an endless belt 11 which will be described later and is provided in a predetermined portion of the frame 101.
3 is a carrier roller for slidably supporting 3, and one end of the frame is a frame 1 by a auxiliary frame fixing knob 108a described later.
01, an auxiliary frame mounted so as to be rotatable upward,
Reference numeral 08a denotes an auxiliary frame fixing knob for fixing the auxiliary frame, reference numeral 108b denotes an auxiliary frame cutout portion for locking and fixing the shaft portion of the auxiliary frame fixing knob 108a formed on the lower side wall of the auxiliary frame 108 in the longitudinal direction. Reference numeral 110 denotes an auxiliary frame shaft supporting portion that pivotally supports the auxiliary frame 108 at one end of the tail side wall portion 103, and 110 denotes a guide slit portion 110a, which will be described later, provided on both side walls of the other end of the auxiliary frame 108. A tail roller that adjusts the tension of the endless belt 113 that is slidably mounted, 110a is a guide slit portion into which the tail roller 110 is inserted,
Reference numeral 11 denotes two tension rollers capable of adjusting the tension of the endless belt 113 and reliably transmitting the driving force of the driving roller 105, and 112 is fitted with one end portion of the tension roller 111 formed on both side wall portions of the main roller receiver 104. A tension roller holding portion 113 is formed by notching in a hook shape so as to be detachably held, and 113 is an endless belt made of polyurethane that carries a conveyed object.

The operation of the conventional portable type belt conveyor constructed as described above will be described below. First, the drive roller 10 is driven by the drive motor 106b.
5, the endless belt 113 whose tension is adjusted appropriately by the tension roller 111 and the like moves from the upstream side to the downstream side together with the conveyed article placed on the endless belt 113,
The conveyed product is discharged from the downstream end to the outside of the belt conveyor 100. Next, a method for detaching the endless belt 113 from the belt conveyor 100 will be described below. First, when the endless belt 113 is removed from the belt conveyor 100, the auxiliary frame fixing knob 108a is loosened, and the auxiliary frame 10 pivotally mounted by the auxiliary frame shaft support 109 is attached.
Rotate 8 upwards to start up. Next, when the tension roller 111 is removed from the groove of the tension roller holding portion 112, the endless belt 113 is loosened greatly downward. Next, the endless belt 113 is lifted from the auxiliary frame 108 and pulled toward the front, and the endless belt 113 is easily removed from the main body of the belt conveyor 100. Next, when the endless belt 113 is mounted on the belt conveyor 100, first, the tension roller 111 is removed from the groove of the tension roller holding portion 112, the auxiliary frame fixing knob 108a is released, and the auxiliary frame 108 is rotated upward. It is moved and lifted. Here, after the endless belt 113 is suspended between the auxiliary frames 108 on both side wall portions and then inserted between the tension roller holding portion 112 and the drive roller 105, the tension roller 111 is attached to the tension roller holding portion 112. Fit. Next, the auxiliary frame 108 having the tail roller 110 is rotated downward to be horizontal with the surface of the frame 101, and the auxiliary frame cutout 108b is fixed to the tail side wall 103 by the auxiliary frame fixing knob 108a. Next, the tail roller 110 adjusts the tension of the endless belt 113 while preventing the endless belt 113 from meandering.

[0004]

However, the above-mentioned conventional belt conveyor has the following problems. (1) Since the legs are attached to one side of the frame side wall so that the endless belt can be freely attached and detached, the allowable weight of the conveyed product on the belt conveyor is small in order to ensure stability and durability. It had the problem of being limited. (2) Even if the transported object is within the allowable weight, when the heavier object is transported, the endless belt receives frictional resistance due to the transported object, the endless belt bends at the lower end of the return side, and a large load is applied to the drive motor. In addition, there is a problem that the endless belt is worn away and slips easily, the driving force is not efficiently transmitted to the endless belt, and the durability and reliability of the belt conveyor are lacking. (3) If the transported object exceeds the allowable weight, it cannot be transported and must be replaced with a large belt conveyor each time, and workability such as transportability and general versatility are lacking. Was there. (4) When an operator leans on, puts on, or puts a heavy object on the frame of the belt conveyor, in order to prevent bending of the frame and the legs and ensure safety and reliability, Since it is necessary to firmly weld the joint between the leg portion and the leg portion, there is a problem in that the productivity and mass productivity of the belt conveyor are lacking. (5) When performing sorting, adjustment, etc. in the middle of the belt conveyor, when a side table or shelf for temporarily picking up items is installed separately from the belt conveyor, or when removing the endless belt, side table, shelf, etc. However, there is a problem in that workability is lacking due to the fact that the legs of the machine interfere with the movement of the side table and the like. (6) It is necessary to replace the tail rollers of the auxiliary frames at both ends of the belt conveyor with different sizes in order to smoothly convey the conveyed items according to the weight of the conveyed items on the belt conveyor. However, there is a problem in that the work of replacing the tail roller is complicated and lacks in workability because it is pivotally attached to the frame. In addition, it is difficult to remove dust and dirt near the shaft portion of the tail roller in the auxiliary frame, and there is a problem that workability during cleaning and hygiene are lacking.

The present invention solves the above-mentioned conventional problems. The endless belt can be easily attached / detached, the allowable weight and the speed of conveyance of articles can be increased, and side tables, shelves, etc. can be attached to the belt conveyor. It is an object of the present invention to provide a belt conveyor that is capable of cleaning and maintenance management of endless belts, frames, rollers, etc. and has excellent workability, safety, and reliability.

[0006]

To achieve this object, the present invention has the following constitution. Claim 1 of the present invention
The belt conveyor according to [1], a long frame for holding an endless belt, two or more main leg portions standingly fixed on one side wall or a bottom surface of the frame, and at least one end portion in the longitudinal direction of the frame. A roller bracket bearing unit that is movably mounted, a tail roller that is detachably supported at the end of the roller bracket bearing unit, and a return roller holding member whose one end is horizontally fixed to the main leg, A return roller that is detachably supported by the return roller holding member, a sub-leg portion that is erected and fixed to the other end portion or the lower portion of the return roller holding member, the other end portion of the return roller holding member, and the side wall portion of the frame. A frame support member that is detachably or rotatably disposed between the return roller holding member and a first locking portion that locks one end of the frame support member to the other end of the return roller holding member; Has a second locking portion for locking the other end of the side wall portion or the lower the frame support member, a driving unit for driving the endless belt, the structure comprises a. The belt conveyor according to claim 2 of the present invention is the belt conveyor according to claim 1,
The frame support member is formed of a rectangular plate body having a shaft support hole portion or a fixing notch portion at both ends in the longitudinal direction, and the first locking portion and / or the second locking portion is a shaft supporting member. Support member for rotatably rotatably supporting the use hole and / or the support member for locking the fixing notch portion of the frame support member with the second supporting portion and / or the first locking portion. And a fixing jig that is fitted or screwed into the supporting member fixing hole to fix the first locking portion of the frame supporting member in a detachable or rotatable manner. are doing. Claim 3 of the present invention
The belt conveyor according to [1], a long frame that holds an endless belt, two or more main leg portions that are erected downward from one side wall or bottom surface of the frame, and at least one end portion in the longitudinal direction of the frame. A rotatably mounted roller bracket bearing unit, a tail roller rotatably supported at the end of the roller bracket bearing unit, and a return roller whose one end is horizontally mounted from the upper side of the main leg. A holding member, a detachable return roller pivotally supported by the return roller holding member, a sub leg portion standing on the other end portion or the side wall portion of the other end portion of the return roller holding member, and an upper end portion of the sub leg portion. Alternatively, a detachable frame support member that supports the frame by bridging the upper side wall and the side wall or the lower part of the frame in a substantially vertical manner, and a frame support part on the upper end or upper side wall of the auxiliary leg. A first locking portion for locking the one end, and a second locking portion for locking the other end of the frame support member to the side wall portion or bottom of the frame, a driving unit for driving the endless belt,
Is provided. The belt conveyor according to claim 4 of the present invention is any one of claims 1 to 3.
In the above, there is a configuration in which the main leg portion and the bridge leg portion are formed in an L shape, and the sub leg portion is fixed or detachably fixed so as to stand between the return roller holding member and the end portion of the bridge leg portion. are doing. A belt conveyor according to a fifth aspect of the present invention is the belt conveyor according to any one of the first to fourth aspects, in which the roller bracket bearing unit is formed on a pair of left and right bracket bearing plates and a frame formed on an end portion of the bracket bearing plate. A bracket fitting part, which is a groove part that fits into the frame fitting part formed on both side walls in a protruding shape so as to be rotatable and fittable, and both side wall parts of the frame formed under the bracket bearing plate. And a bracket fixing portion that is fitted and fixed to the formed frame fixing portion so that the bracket fixing portion can be freely fitted. A belt conveyor according to a sixth aspect of the present invention is the belt conveyor according to any one of the first to fifth aspects, wherein the side wall portion of the frame includes a platform mounting portion that is fixed or detachable to the outside of the frame. are doing. A belt conveyor according to a seventh aspect of the present invention is the belt conveyor according to any one of the first to sixth aspects, wherein the side wall at the end of the bridge leg, the side wall at the lower end of the main leg, or the lower end of the auxiliary leg. An auxiliary leg portion that is fixed or detachably fixed to the outer side direction from the side wall on the side orthogonal to the longitudinal direction. A belt conveyor according to an eighth aspect of the present invention is the belt conveyor according to any one of the first to seventh aspects, wherein the drive unit is a motor pulley installed below a substantially central portion in a longitudinal direction of the frame. are doing.

Here, the frame support member is rotatably pivotally attached at one end, or is provided with notches at both ends so as to be detachable. When the endless belt is replaced, a gap is formed between the return roller holding member and the frame so that the endless belt can be freely taken in and out. This allows the endless belt to be easily removed from the belt conveyor. As a fixing jig for removably fixing the frame supporting member, a rod-shaped shaft portion having a bolt or a screw portion and a fixing knob having a handle at its end is used. This allows easy manual tightening. Accordingly, the frame support member may be disposed on the side wall portion of the frame and the return roller holding member or the auxiliary leg portion, and may be penetrated through the hole or fitted with the notch and fastened with a bolt or a fixing knob. In addition, as the frame support member, other than the pivotal support structure, when the belt conveyor is used, it is substantially perpendicular to the other end of the return roller holding member or the upper end of the auxiliary leg and the side wall of the frame. Any shape and fixing method may be used as long as the mechanism is such that the frame is erected and bridged to support the frame, and when the endless belt is detached, a gap is formed between the return roller holding member and the frame. Further, as the material of the frame supporting member, a metal having strength and stainless steel is used. It is preferable that two or more main legs and sub-legs are provided and connected to each other. This is because the material strength is reinforced and the belt conveyor can be stably supported. It is preferable to provide a fixing member such as a caster for moving the belt conveyor, a wheel or a jack bolt for fixing the belt conveyor on the lower surface of the leg portion. This is because it is fixed easily in a work place that is easy to move. A table or a shelf having a base leg portion on the base can be detachably fixed to the base mounting portion provided on the side wall of the frame. The drive roller of the drive unit is preferably mounted below the substantially central portion of the frame in the longitudinal direction.
Further, as the drive roller of the drive unit, a motor pulley having an internal drive mechanism and having an outer peripheral surface rotating is preferable because it can make the belt conveyor compact, but it is also possible to use a chain transmission type or the like. As the endless belt, a belt made of a sheet of polyurethane resin or the like, a mesh net woven of other stainless wires, a straight belt, a hinge belt, or the like is used. A carrier roller may be provided on the surface of the frame so as to be rotatable at predetermined intervals. This is to prevent the endless belt from being attracted to the frame and to stabilize the movement of the transport unit. The material of the frame is preferably stainless steel. This is because it has excellent corrosion resistance and is not affected by chemicals for sterilization and has excellent durability. Further, it has an excellent appearance, is lightweight, and can improve durability.

[0008]

With this structure, the following actions can be achieved. That is, (1) the sub-leg portion standing below the end portion of the return roller holding member, the first locking portion at the other end portion of the return roller holding member, and the second locking portion at the side wall portion of the frame. Since a frame support member that is bridged almost vertically is provided, the frame support member supports the side wall of the frame when the belt conveyor is used, and the main leg and the auxiliary leg firmly support the frame. Therefore, it is possible to stably and smoothly convey a heavy object to be conveyed. When the return leg holding member is attached to the upper side wall and the sub leg is provided upright and has the first locking part on the upper end or the upper side wall, the frame support member is the first leg of the sub leg. A bridge is attached between the locking portion and the second locking portion in a substantially vertical manner so as to be detachable, and similarly the frame is firmly supported. (2) The frame support member includes a rectangular plate having a hole for axial support on one end side in the longitudinal direction and a fixing notch near the other end of the side wall in the longitudinal direction, and the first locking portion. , A support member shaft support portion that pivotally supports the shaft support hole portion, and a second locking portion,
Since the supporting member fixing hole for locking the fixing notch of the frame supporting member is provided on the side wall portion of the frame, the fixing for fixing the frame supporting member detachably by being screwed into the supporting member fixing hole. The jig allows the frame support member to be easily attached and detached. In particular, by using a rod-shaped shaft portion having a screw portion and a fixing knob having a handle at its end as a fixing jig, it can be easily detached and attached manually, an endless belt can be easily removed from a belt conveyor, a roller, etc. Can be easily cleaned and the belt conveyor can be kept clean at all times. (3) Since the allowable weight of the conveyed product becomes large, it is not necessary to replace it with a large-sized belt conveyor or the like, and workability such as conveyance property and versatility can be significantly improved. (4) Since the return roller for supporting the return side lower belt of the endless belt is removably provided on the return roller holding member whose one end is orthogonal to the upper side of the main leg and is horizontally mounted, the endless belt is provided. It is possible to prevent the endless belt from being stretched even when the weight of the conveyed product is heavy, and it is possible to improve the durability. Further, the tension of the lower belt on the return side of the endless belt can be reduced and the load of the drive motor can be reduced, so that the conveyed object can be smoothly flowed and the durability is excellent. or,
Since the endless belt can be removed while holding the return roller, the endless belt can be smoothly attached and detached. (5) Since the removable roller bracket bearing unit is provided on the frame, the size of the tail roller of the roller bracket bearing unit can be easily exchanged for each unit according to the weight of the transported object, and it can be removed from the frame for sterilization. Cleaning such as washing is possible. Further, the roller bracket bearing unit is lifted upward, and the stretched endless belt can be easily loosened, the endless belt can be easily taken in and out, and the maintenance and cleaning of the belt conveyor are easy, which is extremely hygienic. . (6) Since the bridge leg that bridges the lower end side of the main leg and the lower end side of the auxiliary leg is provided, the load strength of the belt conveyor can be further improved. (7) Since the main leg portion and the bridge leg portion are formed in an L shape, the sub leg portion standing between the return roller holding member and the end portion of the bridge leg portion can be formed by bolts or welding. That is, the conventional one leg type belt conveyor can be improved and has versatility. (8) Since the allowable weight of the belt conveyor is increased, the side wall portion of the frame can be provided with a mounting portion, and depending on the application,
The side table can be attached to the outside of the frame side wall portion, and the shelf having the supporting legs can be easily and detachably attached to the upper portion of the frame side wall portion, which makes it possible to flexibly cope with work and improve workability. (9) Auxiliary leg that is fixed or detachably fixed in an outward direction orthogonal to the longitudinal direction from the side wall at the end of the bridge leg, the side wall at the lower end of the main leg, or the side wall at the lower end of the auxiliary leg. Part and
It can be installed, and when a side table, shelf, etc. is installed on the belt conveyor, it can be prevented from falling and safety can be secured. (10) Since the motor pulley is used for the drive unit and is installed in the substantially central portion in the longitudinal direction of the frame, only the tail rollers of the roller bracket bearing units are arranged at both ends of the frame, so that the carrying-in space and the discharging space of the conveyed object are provided. Can carry in and out even if the space is small. Further, the driving force transmission mechanism is not required and the driving force can be directly transmitted to the endless belt, the structure is simple and the size can be reduced, and the productivity, mass productivity and reliability are excellent.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a perspective view showing a state in which a belt of a belt conveyor according to a first embodiment of the present invention is mounted,
2 (a) is a front view of a main part around a leg portion of the belt conveyor in the first embodiment of the present invention, FIG. 2 (b) is a side sectional view of a main part of the leg portion, and FIG. ) Is the first of the present invention
FIG. 4 is a perspective view of a frame supporting member of a belt conveyor in the embodiment, and FIG. 3 is a perspective view of a roller bracket bearing unit of the belt conveyor in the first embodiment of the present invention. 1 to 3, reference numeral 1 denotes a belt conveyor according to the first embodiment of the present invention. 101a is a frame connecting member, 102a is an auxiliary stay, 102b is a jackie bolt, 104 is a main roller receiver, 107 is a carrier roller,
110 is a tail roller, 111 is a tension roller, 1
Reference numeral 12 is a tension roller holding portion, and 113 is an endless belt. Since these are the same as in the conventional example, the same reference numerals are given and description thereof is omitted. Reference numeral 2 denotes a long frame made of stainless steel or the like which holds the endless belt 113 and is excellent in corrosion resistance, and 3 denotes two or more main leg portions which are erected downward from a predetermined portion of one side wall or bottom surface of the frame 2. Reference numeral 4 denotes a return roller holding member whose one end is horizontally mounted from the upper side of the main leg portion 3, and 4a denotes a return which pivotally supports a return roller 5 which will be described later and which is arranged at both ends of the upper surface of the return rotor holding member 4. Roller shaft supporting portions 5 are return rollers for rotatably supporting the return side lower belt of the endless belt 113 which is detachably supported by the return roller shaft supporting portion 4a, and 6 is erected downward from the lower portion of the return roller holding member 4. The sub-leg portion 7 is a frame support member 7 which is rotatably supported by a first locking portion 11 at the other end of the return roller holding member 4 and which is formed of a rectangular metal plate. Frame support member 7 A shaft supporting hole formed on one side for pivotally attaching to the turn roller holding member 4, 7b is a fixing notch formed on a side surface of the frame supporting member 7, and 8 is a shaft supporting the frame supporting member 7. Therefore, the first locking portion has a support member shaft support portion (not shown) attached to the end portion of the return roller holding member 4. 9
Is a frame 2 for removably fixing the frame support member 7.
The second locking portion 9a, which is a supporting member fixing hole having a nut 9a described later on the side wall thereof, is a nut. Figure 2 (b)
As shown in, the nut 9a is provided on the back of the side wall of the frame 2.
Is attached by welding or the like, but when the side wall of the frame 2 is a thick wall, the nut 9a is not necessary,
You may form a screw hole directly in the side wall part of the frame 2. 1
Reference numeral 0 indicates that the frame support member 7 is fixed to the end portion of the rod-shaped shaft portion having the screw portion for fixing the frame support member 7 to the support member fixing hole portion (not shown) that is the second locking portion 9 of the side wall portion of the frame 2. A fixing jig composed of a knob for use is a shaft support bolt 11 for supporting the frame support member 7 on a support member shaft support (not shown) of the first locking portion 8. Next, 12 is a bridge leg that bridges the lower end side of the main leg 3 and the lower end side of the auxiliary leg 6. Here, the bridge leg portion 12 has the return roller holding member 4, the sub leg portion 6 and the frame support member attached to the portable type belt conveyor in which the main leg portion 3 is formed in an L shape as in the conventional example. Therefore, the conventional belt conveyor can be improved to the belt conveyor 1 of the present invention. Reference numeral 13 denotes a drive roller that is axially supported by the main roller receiver 104. A motor pulley having a built-in drive portion is used, a space for installing the drive portion such as above the frame 2 is omitted, and downsizing is realized. . When the return roller holding member 4 is attached to the upper side wall portion of the auxiliary leg portion 6, the frame support member 7 is locked to the upper end portion of the auxiliary leg portion 6 or the first locking portion 8 of the upper side wall portion,
You may stand up substantially perpendicular | vertically with the side wall part of the frame 2, or the 2nd locking part 9 provided in the lower part, and may be locked. 14 is a tail side wall portion provided on both side wall portions of both ends of the frame 2, and 15
Is a roller bracket bearing unit that is rotatably fitted to both ends of the frame 2 to adjust the tension of the endless belt 113 and facilitates the removal of the endless belt 113. Reference numeral 15a is a side wall of the roller bracket bearing unit 15 and is formed to the left and right. A pair of bracket bearing plates, 16a is a frame fitting part formed by projecting from the tail side wall part 14 of the frame 2, and 16b is a frame fitting part formed in a notch shape at the end of the bracket bearing plate 15a. 16a is a bracket fitting portion that is detachably and rotatably fitted, and 17a is a notch having an inclination in the lower portion of the bracket bearing plate 15a and is detachably fitted to a frame fixing portion (not shown). A bracket fixing portion that holds the roller bracket bearing unit 15 horizontally, and 17b is a frame fixing portion (not shown) of the tail side wall portion 14 of the frame 2. It is screwed to the bracket fixing portions 17
A fixing knob for fitting and fixing a, and 18 is a tail roller 110 formed in parallel with both bracket bearing plates 15a.
A roller shaft supporting portion having a long groove for axially supporting at least one of the long grooves upwardly opened at the tip of the bracket bearing plate 15a, and 19 is formed so as to project from the side wall portion of the roller shaft supporting portion 18 so that the tension of the endless belt 113 can be maintained. Adjusting roller adjustment unit, 19a
Is an adjusting screw that is screwed to the roller adjusting unit 19 to adjust the position of the roller and adjusts the tension of the endless belt 113 at the position of the tail roller 110, 19b is an adjusting screw fixing unit that rotatably screws the adjusting screw 19a, 20 is a bracket bearing plate 15
Reference numeral 20a denotes a bracket reinforcing stay that is bridged between a and connects and reinforces the bracket bearing plate 15a, and 20a is a screw that fixes the bracket reinforcing stay 20. Here, a mechanism for locking the frame support member 7 will be described with reference to the drawings. 4 (a), (b), and (c) are front views of essential parts showing another example of the locking part of the frame supporting member. 4, 2 is a frame, 3 is a main leg portion, 4a is a return roller shaft support portion, 6 is a sub leg portion, 7 is a frame support member, 7a is a shaft support hole portion, 7b is a fixing notch portion, and 8 is The first locking portion, 9 is the second locking portion, 10 is a fixing knob, and 11 is a shaft support bolt. Thus, at each end of the frame support member 7,
Fixing means such as the shaft support hole 7a or the fixing notch 7b is formed, and is locked to the first locking part 8 or the second locking part 9 by the shaft supporting bolt 11 or the fixing knob 10 or the like, Support the frame 2.

A method for attaching and detaching the endless belt 113 in the belt conveyor 1 of the first embodiment configured as described above will be described below with reference to FIG. First, when removing the endless belt 113 from the belt conveyor 1, the fixing knob 10 that fixes the frame supporting member 7 to the second locking portion 9 on the side wall of the frame 2 is turned to release the fixing of the frame supporting member 7. Next, the fixing knob 17b is loosened, and the roller bracket bearing unit 15 is rotated upward together with the tail roller 110 to stand up. Next, by removing the tension roller 111, the endless belt 113 can be easily removed from the belt conveyor 1 main body.
After removing the endless belt 113, it is possible to easily remove dusts and adhering substances such as dust and foodstuffs accumulated in the roller portions of the belt conveyor 1 main body, the roller bracket bearing unit 15, etc., so that the endless belt 113 can be easily removed. The frame 2 and the like can always be kept clean and hygienic. or,
The detached endless belt 113 can be immersed in a cleaning liquid as it is, cleaned and dried. In particular, the net type belt can easily perform the brushing of the net assembly portion, which has been difficult in the past. Next, the endless belt 11
3 is mounted on the belt conveyor 1, before mounting, the frame support member 7 is detached from the side wall of the frame 2, the tension roller 111 is removed from the groove of the tension roller holding portion 112, and the frame support member 7 is fixed. The fixing knob 17b for locking 10 and the roller bracket bearing unit 15 is in a loosened state. Therefore, the endless belt 113 is attached to the frame 2 and the tension roller 111 is fitted to the tension roller holding portion 112.
Next, the roller bracket bearing unit 15 is fitted together with the tail roller 110 to the frame 2 from above and the bracket fitting portion 16b is fitted and pivotally supported on the frame fitting portion 16a, and the roller bracket bearing unit 15 is rotated downward and lowered. Then, the bracket fixing portion 17a is fitted to the shaft portion of the fixing knob 17b, and the fixing knob 17b is fastened to the frame 2
Fixed to. Next, the tension of the endless belt 113 is adjusted by the roller adjusting portion 19 of the roller bracket bearing unit 15 while preventing the endless belt 113 from meandering. Finally, the frame support member 7 is rotated upward, and at the second locking portion 9 of the frame 2, the fixing notch portion 7b of the frame support member 7 is hooked on the rod-shaped shaft portion of the fixing knob 10 and fixed. Tighten the knob 10 for use.

As described above, according to the present embodiment, since the frame support member is provided, the frame is stably held from both sides in the lateral direction when the conveyed object is conveyed. Can be transported to. Further, when removing the endless belt, the endless belt can be easily removed only by removing the frame supporting member from the frame side wall. In addition, since the return roller can be detachably attached to the return roller holding member to which the frame support member is attached, the return roller can be attached to prevent the belt from flexing and stretching, especially when carrying a heavy object. And the load on the drive motor can be reduced, and the reliability of the device can be improved. As a result, the transport speed, the allowable weight of the transported product, and the like can be increased.

(Embodiment 2) A belt conveyor according to a second embodiment of the present invention will be described below with reference to the drawings.
FIG. 5 is a front view of the main parts of the belt conveyor according to the second embodiment of the present invention. FIG. 6 is a side sectional view of a main part showing a state in which a table is attached to the belt conveyor according to the second embodiment of the present invention. FIG. 7 is a side sectional view of an essential part showing a state in which shelves are attached to the belt conveyor according to the second embodiment of the present invention. 5 to 7, 1'denotes the second of the present invention.
Belt conveyor in the embodiment, 2 is a frame, 3 is a main leg portion, 4 is a return roller holding member, 4a is a return roller shaft support portion, 6 is a sub leg portion, 7 is a frame support member, 7a
Is a hole for shaft support, 7b is a notch for fixing, 8 is a first locking portion,
Reference numeral 9 is a second locking portion, 10 is a fixing jig, 11 is a shaft support bolt, 12 is a bridge leg portion, and 102b is a jacky bolt. Since these are similar to the conventional example, the same reference numerals are given. The description is omitted. Reference numeral 21 denotes a base attachment portion having a fitting portion welded or bolted to a side wall portion of a frame for attaching a table, a shelf or the like, and 22 is provided coaxially on a central portion of the base attachment portion 21 and a side wall of the frame 2. It is a screw hole, and a fixed part of a shelf or a table is fixed by a screw and attached. Here, in FIG. 6, reference numeral 23 denotes a table fixed to the base mounting portion 21 of the frame 2 with bolts or the like in which side fixing members are fitted. Also, 24 is the main leg portion 3
It is an auxiliary leg portion that is screwed to the side wall on the lower end portion side in a direction orthogonal to the longitudinal direction in the outward direction with a bolt 25 or the like, and has a jackie bolt 102b for height adjustment at the tip end portion. In FIG. 7, reference numeral 26 is a supporting leg fixed and mounted by a bolt 22 a or the like fitted upward to the base mounting portion 21 of the side wall portion of the frame 2, and 27 is a shelf arranged above the supporting leg 26. Is. Here, the auxiliary leg portion 24 is provided on the side wall of the main leg portion 3, but by providing it on the auxiliary leg portion 6 and the bridge leg portion 12, further stability can be secured.

As described above, according to this embodiment, the allowable weight of the frame of the belt conveyor is increased due to the effect described in the first embodiment, so that the side wall portion of the frame is detachably attached to the outside of the table. Alternatively, it can be equipped with a base mounting part that holds and fixes a shelf having support legs from the side wall of the frame to the upper part, and a table or a shelf can be easily attached to the side wall of the frame according to the application, making it flexible for work. The workability can be improved, and the table and the shelves can be stably and surely attached to the belt conveyor, and the space can be effectively used. In addition, an auxiliary leg portion which is fixed or detachably fixed in the outer direction orthogonal to the longitudinal direction from the side wall at the end of the bridge leg portion, the side wall at the lower end portion side of the main leg portion, or the side wall at the lower end portion side of the auxiliary leg portion. Since the above is provided, even when a table, a shelf or the like is attached to the belt conveyor main body, the belt conveyor can be prevented from falling.

[0014]

As described above, the present invention can realize a belt conveyor having the following excellent effects. That is, (1) the detachable frame support member allows the frame support member to be fixed to the side wall portion of the frame when the belt conveyor is used, and the main leg portion and the auxiliary leg portion can firmly support the frame from both sides. The frame, the main leg portion, and the auxiliary leg portion can be firmly and stably transported, and a heavier load can be smoothly transported, which is excellent in versatility. (2) The frame support member is a rectangular plate having a shaft support hole and a fixing notch, and the support member shaft is rotatably supported by the holding member side locking part in the shaft support hole. Since the supporting portion and the second locking portion are provided with the supporting member fixing hole portion for locking the fixing notch portion of the frame supporting member on the side wall portion of the frame, the second locking portion is screwed into the supporting member fixing hole portion. The fixing jig, which consists of a fixing knob that fixes the frame support member in a detachable manner, allows even an inexperienced person to easily remove the endless belt from the belt conveyor without the need for special equipment, so assembly and disassembly work can be done easily and workability is improved. It is excellent and can keep the rollers etc. clean and hygienic. (3) Since the return roller for supporting the return side lower belt of the endless belt is removably provided on the return roller holding member whose one end is orthogonal to the upper side of the main leg and mounted horizontally, the return roller is provided. When fitted, it is possible to prevent the endless belt from flexing on the return side lower band and prevent the endless belt from stretching.
The durability can be improved. Further, it is possible to reduce the tension of the return-side lower belt of the endless belt, reduce the load on the drive motor, and smoothly convey the conveyed object, thereby improving the durability. Further, since the endless belt can be smoothly attached and detached while the return roller is held, workability at the time of cleaning can be improved. (4) Since the allowable weight of the conveyed product becomes large, it is not necessary to replace it with a large belt conveyor, and the workability such as the conveyance property and the versatility are extremely excellent. (5) Since the frame is provided with a detachable roller bracket bearing unit, it is possible to easily change the size of the tail roller of the roller bracket bearing unit or the tail roller alone or for each unit according to the weight of the transported object. By removing the tail roller and roller bracket bearing unit from the frame, cleaning such as sterilization cleaning can be performed.
In addition, the roller bracket bearing unit is lifted upward, and the stretched endless belt can be easily loosened, the endless belt can be taken in and out very easily, and the maintenance of the belt conveyor is extremely efficient, which makes maintenance easy. Excel. (6) The bridge leg that bridges the lower end side of the main leg and the lower end side of the auxiliary leg can further improve the stability and strength of the belt conveyor, and is excellent in durability and reliability. (7) Since the main leg and the bridge leg are formed in an L shape, the auxiliary leg can be erected between the return roller holding member and the end of the bridge leg and fixed by bolts or welding. Therefore, the versatility can be improved without being limited by the weight of the transported object. (8) Since the allowable weight of the frame is increased, a table or a shelf can be attached to the frame side wall portion according to the application, and it is possible to flexibly deal with work and improve workability. (9) Auxiliary leg that is fixed or detachably fixed in the outward direction orthogonal to the longitudinal direction from the side wall at the end of the bridge leg, the side wall at the lower end of the main leg, or the side wall at the lower end of the auxiliary leg. Depending on the part, when a table, a shelf, etc. is attached to the belt conveyor, stability can be improved and safety can be improved. (10) Since the motor pulley is installed as a drive unit in the substantially central portion of the frame in the longitudinal direction, the carry-in space and the discharge space of the conveyed product can be narrowed, and the driving force can be directly transmitted to the endless belt reliably, and the structure is It is easy and compact and has excellent productivity and reliability.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a belt of a belt conveyor according to a first embodiment of the present invention is inserted.

FIG. 2 (a) is a front view of a main portion around a leg portion of a belt conveyor according to a first embodiment of the present invention. (B) is a side sectional view of a main portion of a leg portion of a belt conveyor according to the first embodiment of the present invention. ) A perspective view of the frame supporting member of the belt conveyor according to the first embodiment of the present invention.

FIG. 3 is a perspective view of a roller bracket bearing unit of the belt conveyor according to the first embodiment of the present invention.

FIG. 4A is a front view of a main part of another example of the locking part of the frame support member. FIG. 4B is a front view of a main part of the other example of the locking part of the frame support member. Front view of the main part showing another example of the locking part of the

FIG. 5 is a front view of a main part of a belt conveyor according to a second embodiment of the present invention.

FIG. 6 is a side sectional view of a main part showing a state in which a table is attached to a belt conveyor according to a second embodiment of the present invention.

FIG. 7 is a side sectional view of an essential part showing a state in which shelves are attached to the belt conveyor according to the second embodiment of the present invention.

FIG. 8 is a perspective view showing a state in which an endless belt of a conventional portable type belt conveyor is attached.

[Explanation of symbols]

 1, 1'Belt conveyor of the first embodiment of the present invention 2, 101 Frame 2a Frame fixing part 3 Main leg part 4 Return roller holding member 4a Return roller shaft support part 5 Return roller 6 Sub-leg part 7 Frame support member 7a Shaft support Hole 7b Fixing notch 8 First locking part 9 Second locking part 9a Nut 10 Fixing knob (fixing jig) 11 Shaft support bolt 12 Bridge leg 13 Drive roller (motor pulley) 14,103 Tail Side wall part 15 Roller bracket bearing unit 15a Bracket bearing plate 16a Frame fitting part 16b Bracket fitting part 17a Bracket fixing part 17b Fixing knob 18 Roller shaft supporting part 19a Roller adjusting part 19b Adjusting screw 20 Bracket reinforcing stay 21 Unit mounting part 22 Screw Holes 22a, 25 Bolts 23 Side table 24 Auxiliary Leg part 26 Support leg 27 Shelf 100 Conventional portable type belt conveyor 101a Frame connecting member 102 Leg part 102a Auxiliary stay 102b Jackie bolt 104 Main roller receiver 105 Drive roller 106a Drive part Chain cover 106b Drive motor 106c Control box 106d Housing 107 Carrier roller 108 Auxiliary frame 108a Auxiliary frame fixing knob 108b Auxiliary frame cutout section 109 Auxiliary frame shaft support section 110 Tail roller 111 Guide slit section 112 Tension roller holding section 113 Endless belt

Claims (8)

[Claims] 1. An elongated frame for holding an endless belt, and 2 fixed vertically on one side wall or bottom of the frame.
To a plurality of main leg portions, a roller bracket bearing unit rotatably mounted on at least one end portion in the longitudinal direction of the frame, and a tail roller detachably supported by an end portion of the roller bracket bearing unit. A return roller holding member whose one end is horizontally fixed to the main leg, a return roller removably supported by the return roller holding member, and the other end or a lower portion of the return roller holding member. A sub-leg portion that is vertically fixed, a frame support member that is detachably or rotatably disposed between the other end portion of the return roller holding member and the side wall portion of the frame, and the return roller holding member. A first locking portion that locks one end of the frame supporting member at the other end, and a second locking portion that locks the other end of the frame supporting member at the side wall portion or the lower portion of the frame; Belt conveyor, characterized in that it comprises a driving unit for driving the Kimutan belt, a. 2. The frame supporting member is formed of a rectangular plate having a hole for axial support or a notch for fixing at both ends in the longitudinal direction, and the first locking portion and / or the first locking portion. (2) A support member shaft support part in which two locking parts pivotally support the shaft support hole part, and / or the second locking part and / or the first locking part And a supporting member fixing hole for locking the fixing notch of the member, and the first locking part of the frame supporting member that is fitted or screwed into the supporting member fixing hole is detachable or rotatable. The belt conveyor according to claim 1, further comprising: a fixing jig that is freely fixed. 3. An elongated frame for holding an endless belt, two to a plurality of main leg portions standing downward from one side wall or a bottom surface of the frame, and at least one end portion in the longitudinal direction of the frame. A roller bracket bearing unit that is rotatably mounted, a tail roller that is detachably supported at the end of the roller bracket bearing unit, and one end of which is horizontally mounted from the upper side of the main leg. A return roller holding member, a detachable return roller pivotally supported by the return roller holding member, an auxiliary leg portion erected on the other end portion or the side wall portion of the other end portion of the return roller holding member, and the auxiliary A detachable frame support member that bridges the upper end or upper side wall of the leg and the side wall or lower part of the frame and stands substantially vertically to support the frame, and the upper end of the auxiliary leg or Is a first locking part that locks one end of the frame support member to the upper side wall, and a second locking part that locks the other end of the frame support member to the side wall part or the lower part of the frame.
A belt conveyor comprising: a locking portion and a driving portion that drives the endless belt. 4. The main leg portion and the bridge leg portion are formed in an L-shape, and are erected between the return roller holding member and the end portion of the bridge leg portion so that the sub leg portion can be fixed or detached. The belt conveyor according to claim 1, wherein the belt conveyor is fixed to the belt conveyor. 5. The roller bracket bearing unit,
From a pair of left and right bracket bearing plates, and a groove or the like that is rotatably and fittablely fitted to frame fitting portions formed at the end portions of the bracket bearing plates and projecting on both side walls of the frame. And a bracket fixing portion which is formed in a lower portion of the bracket bearing plate and is fitted and fixed to a frame fixing portion formed on both side wall portions of the frame so as to be fittable. The belt conveyor according to any one of claims 1 to 4, wherein: 6. The belt conveyor according to claim 1, wherein a side wall portion of the frame includes a base mounting portion that is fixed or detachable outside the frame. 7. The side wall at the end of the bridge leg, the side wall at the lower end of the main leg, or the side wall at the lower end of the auxiliary leg is orthogonal to the longitudinal direction and can be fixed or detached in the outward direction. The belt conveyor according to claim 1, further comprising a fixed auxiliary leg portion. 8. The belt conveyor according to claim 1, wherein the drive unit is a motor pulley installed below a substantially central portion of the frame in the longitudinal direction.