JPS6117092Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cover for drains such as sewage and road drainage.

Generally, the covers of this type of drain are simply arranged in a row without being connected, so when people or cars pass over the cover, the impact may cause damage to the stepped part of the structure. It was very dangerous as it could come off. Therefore, as an improvement on this, a device has been proposed, for example, as described in literature such as Utility Model Publication No. 50-44704, that is, a device in which a male-type engagement piece and a female-type notch are provided on the edges of adjacent lids in series. ing. According to this configuration, since the respective lids are connected to each other, they will not shift or come off the stepped portion, and the above-mentioned risk problem is solved. However, as described above, these lids are subjected to impact when people, cars, etc. pass by, and therefore undergo complicated movements and vibrations. Therefore, in the structure of a mere engagement piece as in the proposed device, shearing stress acts on the neck (base) of the engagement piece, which often causes the piece to break, which requires time and effort to repair or replace. However, there was a problem with the lack of durability.

In view of the above, it is an object of the present invention to provide a drain cover that has a relatively simple structure, can efficiently absorb the above-mentioned complex movements and vibrations, and has excellent durability with less breakage.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

1 is a cast iron lattice-shaped lid body (hereinafter referred to as
(also called the main body), and its upper surface is patterned with diagonal unevenness and tolerance-shaped anti-slip stripes.
At the connecting portion between the two adjacent main bodies 1, 1, a horizontal platform-shaped female support portion 2 is cut out on one side edge 1a of the main body 1.
At the same time, a thin horizontal platform-shaped male inserting part 3 is protruded from the other end edge 1b and is flush with the main body 1 which is secured to the female supporting part 2.
The female support portion 2 and the male insert portion 3 are provided with engagement means that engage in the vertical direction thereof. Various forms can be considered as this engagement means, and in the illustrated embodiment, as shown in FIGS. 2 to 4, an engagement hole 4 and an engagement element 5 are provided in the female support portion 2, respectively. On the other hand, the male inserting part 3 is provided with an engaging element 6 and an engaging recess 7 that engage with the engaging hole 4 and engaging element 5 of the female supporting part 2, respectively.
In addition, to explain an example of other engaging means, one or more engaging elements 5 are provided in the female type mounting part 2, and an engaging recess 7 in which the engaging element 5 engages in the male type insertion part 3 is provided. and an engagement hole (not shown) are arranged side by side or separately, or contrary to the above, the female type supporting part 2
One or more engagement holes 4 are provided in the holder, or the engagement holes 4 and an engagement recess (not shown) are provided side by side, and the male insertion part 3 is provided with an engaging element that engages with these engagement holes 4, etc. There are configurations such as providing one or more 6, and in short, the female type support part 2 and the male type insertion part 3 are provided with engaging means for engaging or engaging in the vertical direction thereof. That's all there is to it.

Next, to explain the usage state of the present invention together with its operation and effect, as shown in Fig. 1, the male type of the next main body 1 is placed on the female type supporting part 2 of the main body 1 which is suspended in a drainage ditch (not shown). At the same time as inserting the insertion section 3, the third
The engaging element 6 of the male type insertion part 3 is fitted into the engagement hole 4 of the female type support part 2 shown in FIGS.
When the engaging element 5 is engaged with the engagement recess 7 of the male type insertion part 3, the female type support part 2 and the male type insertion part 3 are connected, and all the lids are connected one after the other. The current state is maintained. Therefore, even if the lid receives an impact when an automobile or the like passes over the lid, it is prevented from shifting or coming off the drain, thereby ensuring its safety. In particular, the present invention has an engaging element provided in the male type insertion part with a downward protrusion in order to locally protrude the tip part into the engagement hole penetrated through the female type support part, and the female type insertion part. Since an engaging recess is formed in order to locally fit the tip of the engaging element which is protruded upward in the mold support part, the shear stress acting on the engaging element and the engaging hole is reduced. can be prevented from occurring, and breakage of the engaging element can be minimized, and
Since the work of attaching the lid and the like can be carried out simply by arranging the male type insertion part in parallel with the female type support part, there is an effect that the work can be simplified.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a plan view showing a continuous state, FIG. 2 is an enlarged plan view of the main parts of the same, and FIG. 3 is an enlarged sectional view taken along the line A-A' in FIG. 2. , FIG. 4 is an enlarged sectional view taken along the line B-B' in FIG. 2, FIG. 5 is an enlarged side view of the main body as viewed from arrow C, and FIG. 6 is an enlarged side view of the main body as seen from arrow D. DESCRIPTION OF SYMBOLS 1...Main body, 1a, 1b...Edge, 2...Female type support part, 3...Male type insertion part, 4...Engagement hole, 5...
... Engagement element, 6... Engagement element, 7... Engagement recess.

Claims (1)

[Scope of utility model registration request] In the connecting portion of both adjacent lid bodies, the edge of one lid body is formed with a male insertion part extending laterally toward the other lid body, while the edge of the other lid body is formed with the male insertion part. A laterally protruding female mold holder is formed so as to be spaced apart from and juxtaposed below the mold holder, and the male mold holder has an engaging hole penetrating through the female mold holder. In order to locally insert the tip part of the engaging element, the engaging element is provided in a downwardly protruding manner, and the engaging element is provided in an upwardly protruding manner into the female type supporting part, in order to locally insert the engaging element. A drain lid, characterized in that a recessed engagement recess is formed respectively.