JP2007196879A - Sewage storing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sewage storing device allowing sure prevention of sewage leakage and satisfaction of the visibility of a lighting device. <P>SOLUTION: This sewage storing device 1 is mounted at a rear end part of a mixer vehicle to store washing sewage. The device 1 comprises a flexible cylinder body 2 provided in a space between a rear side bumper B and a virtual line VL for connecting rear ends of left and right wheels Wr and Wl, and a hopper 3 provided in the same space. The device 1 is provided with a connection means 4 for removably connecting one end of the cylinder body 2 to a sewage outlet of the hopper 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an improvement of a sewage storage device for storing cleaning sewage of a mixer truck.

  In an agitator truck called a mixer truck, if mortar or ready-mixed concrete (hereinafter referred to as “green concrete”), which is a transported material, remains in the drum mounted on the chassis, the agitation performance deteriorates in the worst case. It becomes a cause of various adverse effects such as difficulty in charging and discharging the raw food from the drum.

  In particular, the hopper used to feed the raw concrete into the drum and the chute used to discharge the raw concrete come into direct contact with the outside air. Thereafter, it is preferable to clean the hopper and the chute promptly. However, the cleaning water used for cleaning the hopper and the chute is sewage containing raw concrete, and thus cannot be discharged out of the mixer vehicle as it is.

  Therefore, in a conventional mixer truck, for example, a flexible cylinder provided at the end of the mixer truck, a cap on a funnel provided at one end of the cylinder, and the other end of the cylinder are stepped. A sewage storage device provided with a hook to be hooked on is mounted (for example, see Patent Document 1).

  And in this sewage storage device, the sewage discharged from the lower end of the chute is received by the base and the sewage is guided into the cylinder, and the central part of the cylinder is maintained at a position lower than both ends. The sewage is stored in the body.

In such a conventional sewage storage device, sewage can be transported to the waste disposal site while being accommodated in the cylinder. In the waste disposal site, by removing the hook from the step, Since the end becomes a free end, there is an advantage that the sewage drainage work from the cylindrical body becomes easy.
Japanese Utility Model Publication No. 5-63807 (FIG. 1)

  However, in the conventional sewage storage device, the cylindrical body needs to be installed horizontally and horizontally along the bumper portion that is the rearmost end of the mixer truck. The bumper at the end will be covered.

  If the vehicle collides with the mixer truck from behind, or if an obstacle hits a bumper that becomes a blind spot when the mixer truck moves backward, the cylinder is pressed or the cylinder itself is damaged. Or the sewage may be scattered on the road.

  Furthermore, in conventional mixer trucks, lights (tail lights, turn indicators, rear reflectors, etc.) are attached to the frame structure on the left and right of the rear end of the drum, and the position of the lights is much higher than that of other-use cars. However, in the revision of the Road Transport Vehicle Safety Standard (hereinafter referred to as “Safety Standard”) based on the Road Transport Vehicle Law, which will be enforced from January 1, 2006, the visibility requirement for lighting equipment from an oblique direction As a result, the lighting device is hidden by a chute or the like when the lighting device is in a state where the lighting device is looked up at the conventional lighting device mounting position, and the visibility requirement from the oblique direction is not satisfied.

  In order to satisfy this and operate the mixer truck legally, it is optimal to attach the lamp to the bumper at the end of the mixer truck that does not look up at the lamp, but in the conventional wastewater storage device described above, Since the cylinder is attached to the rear side of the bumper, there is a problem that even if the lamp is installed, the lamp or the base is covered with the lamp and the lamp cannot be confirmed from the rear. .

  Therefore, the present invention was devised to improve the above-described problems, and the object of the present invention is to contain sewage that can reliably prevent sewage leakage and satisfy the visibility of the lamp. Is to provide a device.

  In order to achieve the above-described object, a sewage storage device that is attached to the rear end of the mixer truck and stores cleaning sewage is provided in a space between a rear bumper and a virtual line that connects the rear ends of the left and right rear wheels. And a hopper provided in a space between the rear bumper and the imaginary line connecting the rear ends of the left and right rear wheels. One end of the cylinder is removed at the sewage outlet of the hopper. A connecting means for connecting freely is provided.

  Since the sewage storage device of the present invention is provided in a space between the rear bumper of the mixer truck and the virtual line connecting the rear ends of the left and right rear wheels, the situation where the mixer truck receives an impact from the rear, that is, the mixer The sewage storage device is to be protected by the bumper even in the case of an accident in which the following vehicle collides with the vehicle from behind, or in the case where the mixer vehicle contacts the rear obstacle when moving backward. There is no risk of sewage leaking outside.

  Further, since the sewage storage device does not cover the bumper from the rear side, it is possible to directly install the lamp on the bumper, and to ensure good visibility of the lamp.

  The present invention will be described below based on the illustrated embodiment. FIG. 1 is a perspective view of a sewage storage device according to an embodiment. FIG. 2 is a plan view of the sewage storage device in one embodiment. Drawing 3 is a figure showing operation of a hopper of a sewage accommodation device in one embodiment. FIG. 4 is an enlarged view of a cylinder in the sewage storage device according to the embodiment. FIG. 5 is an enlarged view of a cylindrical body in the sewage storage device according to the modification of the embodiment.

  As shown in FIGS. 1 and 2, a sewage storage device 1 according to an embodiment is a device that is attached to a rear end portion of a mixer truck and stores cleaning sewage. A flexible cylinder 2 provided in a space between the rear wheels Wr and Wl and a virtual line VL connecting the rear ends of the rear wheels Wr and Wl, and a virtual line VL connecting the rear bumper B and the rear ends of the left and right rear wheels Wr and Wl. A hopper 3 provided in a space between the hopper 3 and a connecting means 4 for detachably connecting one end of the cylindrical body 2 to a sewage outlet 3 a of the hopper 3.

  Hereinafter, each part will be described in detail. The hopper 3 includes a water receiving portion 3b and a tapered cylindrical sewage outlet 3a extending from the lower end of the water receiving portion 3b. The water receiving portion 3b is shown in FIG. , 2, it is a bottomed cylindrical shape, and its cross-sectional shape is a rectangle whose one end swells in a circular shape, and the bottom portion 3 c is inclined toward one side, and its lowermost end is in the sewage outlet 3 a It is opened so that it may communicate with.

  As shown in FIGS. 1 and 2, the rear bumper B is connected to the rear ends of the left and right chassis frames 10 and 13 of the mixer vehicle via brackets not indicated, and the rear bumper B On the left and right sides of B, lights L are mounted.

  Further, the side wall 3h of the water receiving portion 3b on the side where the sewage outlet 3a is continuous is formed at the rear end of the step St serving as a scaffold for the mixer vehicle worker disposed and provided on the rear side of the rear fender F covering the upper part of the rear wheel Wr. The hopper 3 is hinged, and the hopper 3 can swing in the horizontal direction. The storage position is perpendicular to the traveling direction of the mixer truck indicated by the two-dot chain line in FIG. 3, and the mixer truck indicated by the solid line in FIG. It is possible to adopt a water receiving position in which the water receiving portion 3b is disposed immediately below the chute S.

  The step St is connected to the chassis frame 10 and fixed to the upper part of the stay 14 extending from the chassis frame 10 to the back of the rear fender F. The hopper 3 is hinged to the rear end of step St. Arranged behind the rear fender F.

  The hopper 3 may be maintained and fixed at the storage position and the water receiving position described above. Further, in order to dispose the hopper 3 behind the rear fender F so as to be slidable in the horizontal direction, as described above, the hopper 3 is connected to the stay 14 or the stool 14 in addition to the hopper 3 being hinged to the step St as described above. If there is no problem in strength, the rear fender F may be hinge-coupled, or may be hinge-coupled to a stay provided separately in the chassis frame 10.

  Further, a notch 3f is provided in the side wall 3e facing the inside of the mixer truck so that the chute S can enter the water receiving portion 3b when the water receiving portion 3b is in the water receiving position. Further, the upper end of the side wall 3g that faces the outside of the mixer truck when the water receiving position is reached is set to be positioned above the lower end of the chute S. By setting in this way, the sewage discharged from the lower end of the chute S can be reliably received by the water receiver 3b.

  Furthermore, the hopper 3 does not hinder the rotation of the chute S when the storage position is taken, and the side wall 3i facing the rear of the mixer vehicle when the water receiving part 3b is in the water receiving position has a lower end of the chute S. A recess 3d for preventing interference is provided, and even when the hopper 3 is in the water receiving position, the chute S is not rotated to the rear side of the mixer vehicle as shown by a two-dot chain line in FIG. Is allowed.

  Therefore, the range in which the hopper 3 swings only needs to be a range of 90 degrees from the storage position to the water receiving position, and the hopper 3 does not protrude from the side of the mixer truck. Even if the mixer truck is allowed to run while in the water receiving position, the hopper 3 does not come into contact with the outside.

  If the concave portion 3d is not provided, the range in which the hopper 3 can swing may be enlarged in a direction exceeding the water receiving position. However, as described above, in this case, the hopper 3 Is preferably maintained and fixed at least at the water receiving position. Further, if notch 3f is not provided, in order to prevent interference between chute S and water receiving portion 3b, hopper 3 is placed in step St, and the upper end of side wall 3e of water receiving portion 3b is lower than the lower end of chute S. It is preferable to attach it so that it may be located in.

  Further, since the hopper 3 can take the storage position as described above, the hopper 3 does not get in the way when operating the chute S necessary for discharging the raw corn. Even if it is provided in the space between the bumper B and the virtual line VL connecting the rear ends of the left and right rear wheels Wr, Wl, the operability of the chute S is not impaired.

  On the other hand, the cylindrical body 2 is formed of a flexible material, and specifically, for example, a material in which a cloth material or a fiber reinforced resin to be coated with a synthetic resin is formed in a hose shape can be used.

  As shown in FIG. 4, a pair of annular bands 5 and 6 are attached to one end 2 a of the cylindrical body 2 so as to sandwich and hold the one end 2 a from the inside and the outside. Is made of metal and fixed to one end 2a of the cylindrical body 2 by a rivet or a bolt or the like penetrating the one end 2a of the cylindrical body 2. In this embodiment, the one end 2a of the cylindrical body 2 is held open in a circular shape. ing.

  Further, as shown in FIG. 4, the other end 2b of the cylindrical body 2 is kept closed by being sandwiched and folded between a pair of metal pieces 7 and 8, and the metal pieces 7 and 8 are broken. Both are connected to the side portion of the chassis frame 10 of the mixer vehicle by bolts or the like penetrating the folded other end 2b.

  Thus, since the other end 2b of the cylinder 2 is closed, it is possible to prevent sewage contained in the cylinder 2 from leaking from the other end 2b. However, the closing of the other end 2b is not limited to the above method. As long as sewage can be prevented from leaking from the other end 2b, other methods can be employed. The metal piece 7 attached to the inside of the chassis 2 from the chassis frame 10 may be omitted, and the other end 2b of the cylinder 2 may be sandwiched between the metal pieces 7 and 8 without being bent as described above. It may be sandwiched between the chassis frame 10 and the metal piece 8.

  In addition, the connection of the other end 2b includes a connection that cannot be removed. However, in view of the necessity for replacement due to deterioration of the cylindrical body 2 over time, it is preferable to employ a connection that can be removed.

  Subsequently, as shown in FIG. 1, one end 2a of the cylindrical body 2 is connected to the sewage outlet 3a continuous below the water receiving portion 3b. In this connection, the whole or a part of the sewage outlet 3a is inserted into the one end 2ab of the cylindrical body 2. At the time of this connection, a hook 11 coupled to the annular band 6 and a ring provided on a side portion facing outward of the mixer truck when the water receiving portion 3b takes the water receiving position are formed to form the hook 11. Are connected using a metal fitting 12 that can be hooked. Accordingly, in this case, the connecting means 4 is the hook 11 and the metal fitting 12, but a means for connecting with a bolt or a band for fastening the one end 2a of the cylindrical body 2 to the sewage outlet 3a can also be adopted. .

  The one end 2a of the cylindrical body 2 is maintained in a circular shape so as to match the cross-sectional shape of the sewage outlet 3a by the annular bands 5 and 6, and the opening shape of the one end 2a fits the sewage outlet 3a. In this case, it is possible to easily connect the one end 2a of the cylinder 2 to the sewage outlet 3a by simply hooking the hook 11 on the metal fitting 12 so as to save the trouble of working the one end 2a of the cylinder 2 so as to match the shape of the sewage outlet 3a. It is possible to do that.

  The length of the hook 11 is set to such a length that the one end 2a of the cylindrical body 2 fits into the sewage outlet 3a, and the hook 11 and the annular band 6 are coupled to the annular band 6. In addition to the coupling in which the hook 11 can rotate or swing, the coupling may be fixed so that the hook 11 does not move at all. Furthermore, you may make it couple | bond the hook 11 with the cyclic | annular strip | belt 5 arrange | positioned inside the one end 2a of the cylinder 2. FIG.

  The hook 11 is simply a hook-shaped tip, but may be a hook-and-loop hook so that it can be prevented from falling off the metal fitting 12.

  From the above, the cylindrical body 2 is attached to the position where the other end 2b is inside the mixer truck, and the one end 2a is connected to the sewage outlet 3a of the hopper 3 attached to the outermost side of the side of the mixer truck. The intermediate part of the cylinder 2 is bent, and the intermediate part is positioned below one end 2a and the other end 2b of the cylinder 2.

  Here, as shown in the figure, the other end 2b of the cylinder 2 is fixed to the side surface of the chassis frame 10 facing the hopper 3 side. However, in order to increase the amount of sewage stored in the cylinder 2, May be fixed to the chassis frame 13 on the opposite side, that is, the chassis frame 13 on the opposite side beyond the center line of the mixer truck. Moreover, since the other end of the cylinder 2b should just be attached to the position inside a mixer vehicle from the hopper 3, you may make it attach the said other end 2b to the stay 14, for example.

  In the sewage storage device 1 configured as described above, when the chute S of the mixer truck or the like is washed, the end 2a of the cylinder 2 is connected to the sewage outlet 3a by the connecting means 4, and the hopper 3 is The cleaning sewage discharged from the chute S is maintained at the water receiving position, and the sewage can be accommodated in the cylinder 2 by collecting the water in the water receiving portion 3b.

  The mixer truck accommodates the sewage in the cylinder 2 and then removes the hook 11 from the metal fitting 12 because the cylinder 2 is flexible in order to discharge the sewage at the industrial waste disposal site. The one end 2a of the cylindrical body 2 becomes a free end, and the one end 2a can be led to an appropriate sewage discharge place, and the sewage can be discharged from the cylindrical body 2.

  Therefore, in this sewage storage device 1, the sewage storage and discharge operations can be performed very easily.

  As shown in FIG. 2, the sewage storage device 1 is provided in a space between the rear bumper B of the mixer truck and a virtual line VL connecting the rear ends of the left and right rear wheels Wr, Wl. Contain sewage even in the event of an impact from the rear, that is, in the case of an accident in which a subsequent vehicle collides with the mixer truck from the rear or when the mixer truck comes in contact with the rear obstacle. The device 1 is protected by the rear bumper B, and there is no possibility that sewage leaks to the outside.

  Further, since the sewage storage device 1 does not cover the rear bumper B from the rear side, it becomes possible to install the dropper L directly on the rear bumper B as shown in FIG. L can be installed at a position where good visibility can be secured.

  In the above-described embodiment, the hopper 3 is hinged to the step St so as to be able to move in the horizontal direction. However, as described above, the hopper 3 is provided with the recess 3d or the hopper 3 is If the swinging of the chute S is not hindered, the hopper 3 may be fixedly attached to the step St, the stay 14 or the rear fender F in a posture that takes the above-described water receiving position. In this case, as compared with the case where the hopper 3 can swing, the hopper 3 cannot swing, so that it is impossible to discharge the raw concrete to the side of the mixer vehicle. However, the hopper 3 is not hinged. It can be attached to the St, the stay 14, the rear fender F, or a stay separately provided on the chassis frame 10 by various fixing methods such as screw connection or welding, and the sewage storage device can be attached to the mixer truck at a lower cost. It becomes.

  Further, in the above-described embodiment, the other end 2b of the cylindrical body 2 is closed, so that leakage of sewage contained in the cylindrical body 2 is surely prevented. However, the embodiment shown in FIG. As in the sewage storage device in the modified example, the other end 2b of the cylindrical body 2 is not closed, but is hooked on the metal fitting 21 provided on the chassis frame 10 or the stay 14 by the hook 20, and the intermediate portion of the cylindrical body 2 is at the one end 2a. The other end 2b may be disposed below the other end 2b. In this case, the other end 2b can be more easily detached from the chassis frame 10 or the stay 14, and maintenance and replacement work of the cylindrical body 2 can be performed. It becomes even easier. Note that the hook 20 is illustrated as a hook-and-loop hook in which the other end 2b is securely fixed, but may be another hook.

  This is the end of the description of the embodiment of the present invention, but the scope of the present invention is of course not limited to the details shown or described.

It is a perspective view of the sewage accommodation apparatus in one embodiment. It is a top view of the sewage accommodation apparatus in one embodiment. It is a figure which shows operation | movement of the hopper of the sewage accommodation apparatus in one Embodiment. It is an enlarged view of the cylinder in the sewage accommodation apparatus in one embodiment. It is an enlarged view of the cylinder in the sewage accommodation apparatus of the modification of one Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sewage storage apparatus 2 Tubular body 2a One end 2b in a cylindrical body 3 Other end 3 in a cylindrical body 3 Hopper 3a Sewage outlet 3b Receiving part 3c Bottom part 3d Recess 3e, 3g, 3h, 3i Side wall 3f Notch 4 Connecting means 5, 6 Annular belt 7 , 8 Metal pieces 10, 13 Chassis frame 11, 20 Hook 12, 21 Bracket 14 Stay B Rear bumper F Rear fender L Dropper S Chute St Step VL Virtual line Wr Right rear wheel Wl Left rear wheel

Claims (3)

In the sewage storage device that is attached to the rear end of the mixer truck and stores the cleaning sewage, a flexible cylinder provided in a space between the rear bumper and a virtual line connecting the rear ends of the left and right rear wheels; Similarly, a hopper provided in a space between the rear bumper and the imaginary line connecting the rear ends of the left and right rear wheels is provided, and connecting means for detachably connecting one end of the cylinder to the sewage outlet of the hopper is provided. A sewage storage device characterized by that. The hopper is disposed on the rear side of the rear fender and is slidably mounted in the horizontal direction, and the other end of the cylindrical body is closed and mounted so as to be positioned inside the mixer truck from the hopper. The sewage accommodation apparatus according to 1. The connecting means is provided on the outer periphery of the hopper, a pair of annular bands that hold one end of the cylindrical body from the inside and the outside and hold open so as to match the sewage outlet of the hopper, a hook fixed to one of the annular bands The sewage storage device according to claim 1, further comprising a metal fitting for hooking the hook.

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