JP4380899B2 - Fitting structure and toilet backrest mounting structure - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a fitting structure applied to attachment of a backrest of a portable toilet, for example.
[0002]
[Prior art]
As shown in FIG. 1, a portable toilet (1) is provided in which an armrest (3, 3) and a backrest (4) for supporting a body by a user are attached to a toilet body (2).
In order to attach the backrest (4) to the toilet body (2), as shown in FIGS. 8 to 10, the mounting inner cylinder (6,6) is attached from the lower ends of both sides (5,5) of the backrest (4). Send it out. A pair of kerfs (7, 7) are provided from the lower end of the mounting inner cylinder (6) before and after, and a claw (8, 8) is extended laterally from the lower end of the left and right sides. The cylinders (6, 6) are respectively inserted into the mounting outer cylinders (9, 9) provided on both sides of the rear part of the upper surface of the toilet body (2). As shown in FIG. 9, the mounting outer cylinder (9) is reinforced and supported by ribs (91, 91) in the toilet body (2), and is opposed to the bottom of the mounting outer cylinder (9). The hooks (8, 8) of the mounting inner cylinder (6) are engaged with the provided locking notches (10, 10), and further suspended from the board (11) in the mounting inner cylinder (6). Insert the fixed cylinder (12) provided. The fixed cylinder (12) is provided with a pair of kerfs (13, 13) from the lower end in the front and rear directions, and claws (14, 14) project from the upper edge of the kerfs (13, 13). The claw (14, 14) engages with the upper edge of the cut groove (7, 7) of the mounting inner cylinder (6).
A core cylinder (15) is erected from the bottom center of the mounting outer cylinder (9), and the core cylinder (15) is inserted into the fixed cylinder (12) so that the fixed cylinder (12) is cut. The left and right widths are prevented from being elastically reduced and deformed through the grooves (13, 13), and the fixed cylinder (12) is fixed to the left and right sides of the mounting inner cylinder (6) through the grooves (7, 7) The width is prevented from being elastically reduced and deformed, and the inner cylinder (6,6) of the backrest (4) is inserted and fixed to the outer cylinder (9,9) of the toilet body (2) in this way. Is done. (Japanese Patent Laid-Open No. 11-267067).
[0003]
[Problems to be solved by the invention]
In the above conventional backrest mounting structure, after the backrest (4) is mounted, that is, the inner cylinder (6,6) of the backrest (4) is inserted into the outer casing (9,9) of the toilet body (2). In the fixed state, there was a problem that the backrest (4) could not be removed.
[0004]
[Means for Solving the Problems]
As a means for solving the above-described conventional problems, the present invention inserts a fixed cylinder (12A) into a mounting outer cylinder (9), and locks projections (18, 18) at the end of the fixed cylinder (12A). Is attached to the end of the mounting outer cylinder (9), and the mounting inner cylinder (6A) extending from the substrate is inserted outside the fixing cylinder (12A) into the mounting outer cylinder (9). The fixed cylinder (12A) that goes out from the opening of the mounting inner cylinder (6A) of the board is inserted into the opening of the mounting inner cylinder (6A) with the retaining pin (19) inserted through the head pin hole (20). By providing, a fitting structure in which the mounting inner cylinder (6A) is fitted and fixed in the mounting outer cylinder (9) is provided.
[0005]
The fixed cylinder (12A) is provided with a plurality of notches (16, 16) from the terminal and a skirt portion (17A, 17B) between the plurality of notches (16, 16). 17B, 17B) A locking projection (18, 18) is provided at the terminal, and the locking projection (18, 18) of the fixed cylinder (12A) is locked to the terminal of the mounting outer cylinder (9). A notch (10, 10) is provided, and a notch (22A, 22B) is provided at the end of the mounting inner cylinder (6A), between the notches (22A, 22B) of the mounting inner cylinder (6A). The projections (23, 23) of the fixed cylinder (12A) are fitted between the skirts (17A, 17B) of the fixed cylinder (12A) inside the locking convex parts (18, 18) of the fixed cylinder (12A). It is desirable to prevent deformation of the locking projections (18, 18) of (12A) in the axial direction.
[0006]
In the present invention, the fixed cylinder is inserted into the mounting outer cylinder disposed on the rear upper surface of the toilet bowl body, and the locking projection of the terminal of the fixing cylinder is locked to the terminal of the mounting outer cylinder. Insert a mounting inner cylinder that is inserted from the lower end of both sides of the toilet back on the outside of the fixed cylinder, and insert a retaining pin into the fixed cylinder head pin hole that protrudes from the mounting inner cylinder opening of the board. In this state, a toilet backrest mounting structure is provided in which the mounting inner cylinder is fitted and fixed in the mounting outer cylinder by passing it to the mounting inner cylinder opening.
Further, it is desirable that both side portions (5, 5) of the backrest (4) are opened to the rear side.
[0007]
[Action]
In the fitting structure of the present invention, the locking projections (18, 18) of the fixed cylinder (12A) terminal inserted into the mounting outer cylinder (9) are locked to the terminal of the mounting outer cylinder (9), In the mounting outer cylinder (9), the fixing cylinder (12A) is inserted outside the fixing inner cylinder (6A). ) Is inserted into the mounting inner cylinder (6A) by passing it through the opening of the mounting inner cylinder (6A) so that the mounting inner cylinder (6A) is fitted and fixed in the mounting outer cylinder (9). The mounting inner cylinder (6A) can be removed by pulling out, and when the fitting structure is used for the toilet backrest (4) mounting structure, both sides (5,5) of the backrest (4) The backrest (4) can be attached / detached according to the situation by inserting a hand from above and inserting / removing the retaining pin (19, 19).
[0008]
Further, the projections (23, 23) between the notches (22A, 22B) of the end of the mounting inner cylinder (6A) are fixed to the fixed cylinder (18, 18) inside the fixed projection (18, 18) of the fixed cylinder (12A). 12A) In order to prevent deformation of the locking projections (18, 18) of the fixed cylinder (12A) in the axial direction by fitting between the skirt portions (17A, 17B) of the terminal, the fixed cylinder (12A ) Can be prevented from coming off from the mounting outer cylinder (9).
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described with reference to the embodiments shown in FIGS. In the portable toilet (1) shown in FIGS. 1 and 2, in contrast to the conventional example shown in FIGS. 8 to 10, in this embodiment, as shown in FIG. Notches (16, 16) are provided in each of the four directions, and a pair of skirt portions (17A, 17B) are stretched outwardly in an L shape between the notches (16, 16) in the front-rear and left-right directions. The left and right skirts (17B, 17B) are provided with locking projections (18, 18) at the lower ends of the left and right skirts (17B, 17B). The part (18, 18) is locked to the locking notch (10, 10) at the lower end of the mounting outer tube (9) of the toilet body (2), and is pulled out from the upper surface of the head of the fixed tube (12A). A pin insertion convex portion (21) having a head pin hole (20) through which the retaining pin (19) is inserted is projected, and the pin insertion convex portion (21) is projected on the upper surface of the retaining pin (19). The pin lock projection (191) thus formed is locked. A pair of notches (22A, 22B) are provided at the lower end of the mounting inner cylinder (6A) of the backrest (4), respectively, and the notches (22A, 22B) of the mounting inner cylinder (6A) The fixed cylinder (12A) is fitted into the skirt portion (17A, 17B).
[0010]
In order to attach the backrest (4) to the toilet body (2), as shown in FIGS. 4 to 7, the fixed cylinder (12A, 12A) is installed in the mounting outer cylinder (9, 9) of the toilet body (2). The locking projection (18, 18) at the lower end of the fixed cylinder (12A) is locked to the locking notch (10, 10) at the lower end of the mounting outer cylinder (9), and the mounting cylinder Insert the inner cylinder (6A, 6A) of the backrest (4) outside the fixed cylinder (12A, 12A) in the cylinder (9,9), and install the inner cylinder (6A) of the backrest (4). The retaining pin (19) is inserted into the head pin hole (20) of the fixed cylinder (12A) that goes out from the upper surface opening, and is passed to the upper surface opening of the mounting inner cylinder (6A).
[0011]
The fixing projection (18, 18) at the lower end of the fixed barrel (12A) inserted into the mounting outer cylinder (9) of the toilet body (2) is connected to the locking notch at the lower end of the mounting outer cylinder (9). (10, 10), and the fixed outer tube (9) that is inserted into the fixed tube (12A) outside and the backrest (4) that is inserted outside the fixed inner tube (6A). Cylinder (12A) The inner cylinder (6A) of the backrest (4) by passing it to the opening of the inner cylinder (6A) with the retaining pin (19) inserted through the head pin hole (20) Is attached and fixed in the mounting outer cylinder (9) of the toilet body (2), the mounting inner cylinder (6A) becomes removable when the retaining pin (19) is pulled out, and the backrest (4) The backrest (4) can be attached and detached according to the situation by inserting and removing the retaining pin (19,19) by inserting a hand from the rear side of the both sides (5,5).
[0012]
In this embodiment, the projections (23, 23) between the notches (22A, 22B) at the lower end of the mounting inner cylinder (6A) of the backrest (4) are the locking projections (18, 18) Fitted between the skirts (17A, 17B) of the fixed cylinder (12A) terminal on the inside to prevent axial deformation of the locking projections (18, 18) of the fixed cylinder (12A) Therefore, it is possible to prevent the fixed cylinder (12A) from being detached from the mounting outer cylinder (9) of the toilet body (2).
[0013]
【The invention's effect】
In the present invention, the mounting inner cylinder (6A, 6A) of the backrest (4) is fixedly fitted to the mounting outer cylinder (9, 9) of the toilet body (2) via the fixing cylinder (12A, 12A). The backrest (4) can be easily attached and detached by simply inserting and removing the retaining pins (19, 19).
[Brief description of the drawings]
1 to 7 show an embodiment of the present invention.
FIG. 1 is a perspective view of a portable toilet. FIG. 2 is an exploded perspective view of a portable toilet (with the backrest removed). FIG. 3 is an exploded perspective view of a backrest mounting structure. Perspective view [Fig. 5] Side sectional view of the backrest mounting structure [Fig.6] Front sectional view of the backrest mounting structure [Fig.7] Planar sectional view of the backrest mounting structure [Fig.8] Portable toilet in the conventional example (with the backrest removed) FIG. 9 is an exploded perspective view of the backrest mounting structure in the conventional example. FIG. 10 is a side sectional view of the backrest mounting structure in the conventional example.
1 Portable toilet
2 Toilet body
4 Backrest
5 Sides
6A mounting inner cylinder
9 Mounting cylinder
10 Locking notch
12A fixed cylinder
16 Notch
17A, 17B Skirt
18 Locking projection
19 Retaining pin
20 pin hole
22A, 22B Notch
23 Convex

Claims (4)

A fixed cylinder is inserted into the mounting outer cylinder, and the locking projection of the terminal of the fixing cylinder is locked to the terminal of the mounting outer cylinder. The mounting inner cylinder is inserted and passed to the mounting inner cylinder opening with a retaining pin inserted through the fixed cylinder head pin hole protruding from the mounting inner cylinder opening of the substrate. A fitting structure characterized in that an inner cylinder is fitted and fixed in the mounting outer cylinder. The fixed cylinder is provided with a plurality of notches from the end, and a skirt portion is provided between the plurality of notches, and a locking projection is provided on the end of the skirt, and the fixing cylinder is fixed to the end of the mounting outer cylinder. A locking notch for locking the locking projection of the cylinder is provided, and a notch is provided at the end of the mounting inner cylinder, and the projection between the notches of the mounting inner cylinder locks the fixed cylinder. The fitting structure according to claim 1, wherein the fitting structure is fitted between the skirt portions of the fixed cylinder to prevent deformation of the locking convex portion of the fixed cylinder in the axial direction. A fixed cylinder is inserted into the mounting outer cylinder arranged at the rear upper part of the toilet body, and the locking projection of the terminal of the fixing cylinder is locked to the terminal of the mounting outer cylinder. Insert the mounting inner cylinder that is inserted from the lower end of both sides of the toilet back on the outside of the fixed cylinder, and insert the retaining pin into the fixed cylinder head pin hole that protrudes from the mounting inner cylinder opening of the board. A toilet seat back mounting structure in which the mounting inner cylinder is fitted and fixed in the mounting outer cylinder by passing it to the opening of the mounting inner cylinder. The toilet backrest mounting structure according to claim 3, wherein both side portions of the backrest are opened rearward.

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