JP5961154B2 - Temporary toilet toilet - Google Patents

Description

  The present invention relates to a toilet bowl for a temporary toilet installed in various places such as a public place, a construction site, an event venue, a parking lot, a disaster-affected area, and more particularly to a toilet bowl for a temporary toilet made of a plastic blow molded article.

  As described in Patent Documents 1 and 2, the temporary toilet is a base toilet bowl, a floor panel installed on the toilet bowl, a platform installed on the floor panel, and the center of the platform It consists of a toilet installed in the section, a box that surrounds the floor panel and is fixed to the toilet tub, and other flushing devices arranged in the box. The box consists of four wall panels, a ceiling panel, and doors installed on the front wall panel, and is detachable on the toilet bowl. The toilet bowl is made of a plastic blow molded body, and a step that is one step lower is formed on the front side (door front side), and the front-rear direction is longer than the left-right width.

  Temporary toilets are usually put on a truck bed in an assembled state, transported to a setting site, and lowered from the loading platform at the setting site. As a truck for transporting a temporary toilet, a truck with a power gate or a truck with a crane is used assuming unloading at the site. In addition, when a forklift is prepared at the site, it may be transported by a normal truck. On the other hand, they are often transported to the premises by regular trucks and unloaded (hand-down) by human power without using machines.

  To suspend the temporary toilet from the truck bed alone, as shown in FIG. 6, the temporary toilet 3 is slid forward (door front side) on the truck bed 2 of the truck 1 (see the two-dot chain line) While gradually pulling out from the loading platform 2, the front end corner portion 4a of the toilet tub 4 is grounded with the rear end of the toilet tub 4 hooked to the end of the loading platform 2 (see solid line). Next, the temporary toilet 3 is rotated by 90 ° about the front end corner 4a of the grounded toilet tank 4 and removed from the loading platform 2, and the balance of the weight of the temporary toilet 3 and the operator's weight of about 100 kg is achieved. The inclination is gradually reduced, and the entire bottom surface of the toilet 4 is grounded.

JP-A-8-103944 JP-A-8-84687

  When the temporary toilet 3 is lowered from the loading platform of the truck 1, the corner is impacted when the front end corner 4a of the toilet 4 is grounded, and the corner is rubbed against the ground when the temporary toilet 3 is subsequently rotated. The plastic will wear out. For this reason, if the setting of the temporary toilet 3 by hand-down is repeated, there is a problem that the front end corner portion 4a of the toilet tub 4 is damaged early and cannot be used due to a hole. The front end corner portion 4a (refer to the two-dot chain line added to FIG. 2) of the toilet tub 4 is a portion where the plastic parison is easily expanded and thinned during blow molding.

In order to prevent this perforation, it is conceivable to attach another member made of FRP or the like to the front end corner portion 4a of the toilet tub 4 or to thicken the plastic of the front end corner portion 4a. However, attaching a separate member causes a cost increase, and in order to increase the thickness of the front end corner portion 4a, it is necessary to increase the thickness of the entire toilet tub 4 as a whole. The problem of a significant weight increase also arises.
The present invention has been made in view of the above-described conventional problems related to the toilet bowl of a temporary toilet, and even when the temporary toilet is handed down from the truck bed in the installation site, it is not accompanied by a special increase in cost. The purpose is to make the toilet tank (tank part) difficult to damage and to prolong the life of the toilet tank.

The toilet bowl of the temporary toilet according to the present invention is made of a plastic blow molded body, a step is formed on the front side of the toilet bowl, and a ground bumper (buffer part) protruding forward on the closed front wall of the step is a mold. It is characterized by being integrally formed along a split surface (parting line).
In the toilet bowl, it is desirable that the front wall below the bumper is inclined rearward. The bumper includes, for example, a solid portion connected to the front wall and a hollow portion on the front side of the bumper, or the entire bumper includes a plate-shaped solid portion.

  In the toilet bowl of the temporary toilet according to the present invention, since the ground bumper (buffer part) protruding forward on the front wall of the step is integrally formed along the mold dividing surface, the temporary toilet is removed from the truck bed. In the case of hand-down, the ground bumper can be grounded, and the temporary toilet can be rotated around the ground bumper. In addition, since the ground bumper is formed along the parting surface, the plastic parison is prevented from expanding and thinning during blow molding, and has a relatively high strength. Therefore, when the temporary toilet is handed down, the main body portion (tank portion) of the toilet tub is hardly damaged, and the toilet tub can have a long life.

It is a perspective view of the toilet tank of the temporary toilet which concerns on this invention. It is principal part sectional drawing (mainly sectional drawing of a step part) of the same toilet tank. FIG. 1 is a cross-sectional view of a blow mold for molding a toilet tub shown in FIG. 1 (a), immediately before mold closing (b), and after mold closing (c) (upper and lower fastening seats and concave grooves in the toilet) The part corresponding to. It is sectional drawing after the mold clamping of the blow molding die which shape | molds the toilet tank shown in FIG. 1 (the part remove | deviated from the up-and-down fastening seat and concave groove of the toilet bowl). It is principal part sectional drawing (mainly sectional drawing of a step part) of another toilet bowl. It is a figure (figure seen from the back side of a track | truck) explaining the method of pulling down the temporary toilet which assembled | attached the conventional toilet tub alone from the truck bed.

Hereinafter, the toilet bowl of the temporary toilet according to the present invention will be described with reference to FIGS.
A toilet tank 11 (see FIG. 1) according to the present invention includes a main body portion (tank portion) 12 and a ground bumper 13 in which dirt is accommodated, and is integrally formed by plastic blow molding. The main body portion 12 has a step 14 that is one step lower on the front side, and includes a top wall 15, a step surface wall 16, a bottom wall 17, side walls 18 and 19, a front wall 20, a back wall 21, and a step front wall 22. The toilet bowl hole 23 and the scooping hole 24 are formed in the top wall 15.

  On one side wall 18 of the toilet tub 11, solid plate-like upper fastening seats 25 are formed substantially horizontally along the top wall 15 at two locations in the front-rear direction. In the vicinity of the bottom wall 17), a solid plate-like lower fastening seat 26 is inclined slightly outward and downward, and a concave groove 27 having the same width and the same depth is formed over the entire length in the vertical direction. ing. As will be described later, the upper and lower fastening seats 25 and 26 are formed along the parting surface of the blow molding die. After blow molding, holes 28 and 29 for assembly are formed in the upper and lower fastening seats 25 and 26. On the other side wall 19 of the toilet bowl 11, upper and lower fastening seats and concave grooves (not shown) are formed symmetrically with the upper and lower fastening seats 25 and 26 and the concave grooves 27. A floor panel and a box (not shown) (see Patent Documents 1 and 2) are arranged on the toilet tub 11 (top wall 15), and the upper and lower fastening seats 25 and 26, the recessed grooves 27, and the holes 28 and 29 are appropriately used. Can be fixed to the toilet tub 11 and a temporary toilet can be assembled.

A ground bumper 13 protruding forward is formed integrally with the main body portion 12 in the middle of the step front wall 22 in the height direction (see FIGS. 1 and 2). The ground bumper 13 includes a narrow plate-like solid portion 31 connected to the step front wall 22 and a hollow portion 32 formed on the front side thereof. Is formed. The step front wall 22 of the toilet tank 11 is closed, and the internal space of the main body portion (tank portion) 12 and the internal space of the hollow portion 32 do not communicate with each other.
The step front wall 22 includes an upper wall 22a on the upper side and a lower wall 22b on the lower side with the ground bumper 13 interposed therebetween. The lower wall 22b is inclined rearward and continues to the bottom wall 17 at the lower end. As will be described later, the ground bumper 13 is formed along the parting surface of the blow molding die. If the view is changed, the lower wall 22b can also be said to be a part of the bottom wall 17, and if viewed from the standpoint, the front end (lower step) of the bottom wall 17 is inclined forward and upward, and the upper end is the front of the step. It can be said that it continues to the wall 22.

  The toilet tank 11 having the upper and lower fastening seats 25 and 26, the concave groove 27, and the ground bumper 13 uses a pair of blow molds 33 and 34 and a pair of movable molds 35 and 35 shown in FIGS. Can be blow molded. On the inner surface of the blow molding die 33, a cavity surface corresponding to a portion above the one-dot chain line 36, 37, 38, 40, 42 shown in FIG. On the inner surface of the blow molding die 34, a cavity surface corresponding to a portion below the one-dot chain line 36, 37, 39, 41, 42 shown in FIG. The movable molds 35 and 35 are installed at the symmetrical position of the blow molding mold 33 so as to be swingable in a horizontal plane, and the inner surfaces thereof are portions (side surfaces) surrounded by alternate long and short dash lines 38, 39, 40, and 41 shown in FIG. A cavity surface corresponding to the central portions of the walls 18 and 19 is formed. On the inner surfaces of the movable molds 35, 35 are formed ridges 43 corresponding to the concave grooves 27, and notches 44, 45 corresponding to the upper and lower fastening seats 25, 26 are formed on both sides thereof.

An example of a process for blow-molding the toilet bowl 11 with reference to FIG. 3 will be described as follows.
(1) The parison 46 is lowered between the pair of blow molding dies 33 and 34 opened, a blow pipe (not shown) is inserted into the parison 46 from below, and the lower end of the parison 46 is pre-pinch. At this time, the movable molds 35, 35 swing outward and are open.
(2) Clamping of the blow molding dies 33 and 34 is started, and at the same time, air is introduced from the blow pipe to pre-blow the parison 46. The state immediately after the start of mold closing is shown in FIG.
(3) During the mold clamping of the blow molding dies 33, 34, the movable dies 35, 35 are swung inward to hold the preblowed parison 46 inward from the side. In the process in which the movable molds 35, 35 swing inward, a part of the parison 46 projects between the blow molding mold 33 and the cutout portion 44 of the movable mold 35, as shown in FIG. They are folded twice into a flat gap formed between the surface of the blow molding die 33 and the surface of the cutout portion 44 of the movable die 35 and are welded together. This welded portion becomes the upper fastening seat 25. A part of the parison 46 projects between the blow molding die 34 and the notch 45 of the movable die 35.

(4) When the mold clamping is completed, a part of the parison 46 is formed between the surface of the blow molding die 34 and the surface of the notch 45 of the movable die 35 as shown in FIG. Folded into a flat gap, and then welded together. This welded portion becomes the lower fastening seat 26. In the portion of the toilet tank 11 that is out of the upper and lower fastening seats 25, 26 and the recessed groove 27, a substantial size is provided between the blow molding dies 33, 34 and the movable dies 35, 35 as shown in FIG. No gap is formed.
Further, when the mold clamping is completed, in a portion corresponding to the plate-like solid portion 31 of the ground bumper 13, a part of the parison 46 is formed between the both surfaces of the blow molding dies 33 and 34. The step front wall 22 is closed and the pre-blow pressure is sealed in the portion that becomes the hollow portion 32.

(5) After completion of mold clamping, blown air is blown out from the blow pipe into the parison 46 to perform blow molding.
(6) The molded parison 46 is cooled, air-bleeded, the blow molds 33 and 34 are opened, and the movable molds 35 and 35 are opened to the outside. ).

As can be seen from the above manufacturing process, the alternate long and short dash lines 36 to 42 indicate the parting surfaces of the dies (blow molding dies 33 and 34 and the movable dies 35 and 35) (hereinafter, the alternate long and short dash lines 38 to 42 are divided. Surface 36-42). In addition, the ridgeline part 47 (ridgeline part of the top wall 15 and the side wall 18) which connects the mold parting surfaces 38 and 40, and the ridgeline part 48 which connects mold parting surfaces 39 and 41 (ridgeline part of the bottom wall 17 and the side wall 18) Is also a parting surface (hereinafter, the ridge line parts 47 and 48 are also referred to as parting surfaces 47 and 48). Needless to say, a parting surface is also symmetrically formed on the side wall 19 side.
Due to the characteristics of blow molding, the portion of the toilet tank 11 along the above-mentioned mold splitting surfaces 37 to 42, 47, 48 and the vicinity thereof is suppressed from being hardly reduced in thickness due to the expansion of the parison. Most areas of the top wall 15 and the bottom wall 17 are along the dividing surfaces 47, 48, so that the wall thickness is relatively large. In particular, the upper and lower fastening seats 25, 26 are along the parting lines 47, 48, and the parison. Since 46 is a double folded and welded portion, the wall thickness is large and the strength is high. Moreover, since the ground bumper 13 is along the mold splitting surface 36, the thickness can be similarly increased and the strength can be increased.

When a temporary toilet is assembled using this toilet tank 11, transported to a setting place on a truck, and handed down from the loading platform at the setting site, the temporary toilet is pulled out on the loading platform, and the front end of the toilet tank 11 is grounded. The ground bumper 13 positioned at the front end of the toilet tub 11 can be grounded, and when the temporary toilet is subsequently rotated on the ground, the ground bumper 13 can be rotated while being grounded. . Therefore, as in the conventional toilet tank 4 (see FIG. 6), a part of the body part (tank part) 12 of the toilet tank 11 (see the front end corner 4a of the toilet tank 4) is directly impacted to the ground. Or, it can be prevented from rubbing strongly against the ground directly. Thus, the ground bumper 13 functions as a buffer member during the hand-down operation, and as a result, the main body portion (tank portion) 12 of the toilet bowl 11 is hardly damaged and the life of the toilet bowl 11 can be extended.
Further, by tilting the lower wall 22b of the step front wall 22 to the rear side, a part of the main body part (tank part) 12 of the toilet tank 11 is shocked to the ground from the start to the completion of the temporary toilet installation. It is possible to more effectively prevent contact with the ground or strong rubbing against the ground.
Further, since the ground bumper 13 is blow-molded simultaneously with the main body portion 12, there is no particular increase in cost, and the weight of the toilet tub 11 is only slightly increased.

  FIG. 3 shows another ground bumper 49. The ground bumper 49 also projects forward in the middle of the step front wall 22 in the height direction, and is formed integrally with the main body portion 12. Different from the ground bumper 13 shown in FIG. The function of the ground bumper 49 is almost the same as that of the ground bumper 13.

11 Toilet tank 12 Toilet body part (tank part)
13 Ground bumper 14 Step 16 Step front wall 37-42, 47, 48

Claims (4)

A temporary toilet comprising a plastic blow-molded body, having a step formed on the front surface side, and a ground bumper protruding forward on the front wall of the step integrally formed along the mold dividing surface. Toilet bowl. The toilet bowl of the temporary toilet according to claim 1, wherein a front wall below the ground bumper is inclined rearward. The toilet bowl for a temporary toilet according to claim 1 or 2, wherein the ground bumper comprises a solid part connected to the front wall and a hollow part on the front side thereof. The toilet bowl for a temporary toilet according to claim 1 or 2, wherein the ground bumper comprises a plate-shaped solid part.

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