JP7108951B2 - drain cap - Google Patents

Description

The present invention relates to a drain cap placed on a drain.

Drains for draining rainwater are provided on the roofs of buildings such as buildings and condominiums and on the balconies of each floor. A drain cap is installed in the drain to prevent fallen leaves, twigs, paper, vinyl, etc. (hereinafter referred to as fallen leaves, etc.) from flowing into the drain.

Among the drains, there is a lateral drain that drains rainwater laterally from an opening, and some drain caps are configured corresponding to the lateral drain.

A drain cap corresponding to a horizontal drain includes a cap body arranged in an opening of the drain and a plate spring attached to the cap body, and the plate spring is configured to be swingable at one point with respect to the cap body. It is The cap body is sized to cover the drain opening with a slit that allows rainwater to pass through. The leaf spring is fixed to the cap main body at its longitudinal central portion, and has both longitudinal ends extending outward to the left and right.

When arranging the drain cap in the opening of the drain, the inclination direction of the leaf spring is oriented in the extending direction of the drain, the both ends of the leaf spring are curved so as to approach each other, and the leaf spring is inserted into the drain, In the drain, the elastic force of the plate spring itself widens the interval between the both ends, and the plate spring A is pressed against the inner peripheral surface of the drain B and fixed as shown in FIG.

On the other hand, in the case of the drain cap that swings at one point, when the plate spring A is inserted into the drain B, the inclination direction of the plate spring A is not the direction of insertion into the drain B (extending direction of the drain), but the direction of insertion into the drain B. In such a case, the plate spring A slides in the oblique circumferential direction of the drain B as shown in FIG. There was a problem that A could not be completely contained in the drain B. Also, the leaf spring A of the drain cap tends to cause such problems when applied to the minimum diameter (50 mmΦ) or the maximum diameter (100 mmΦ) of the drain B.

For this reason, some drain caps are provided with a connecting member between the cap main body and the plate spring A so that the drain cap can swing at two points (see, for example, Patent Document 1). In the drain cap that swings at two points, the connecting member acts as an extension member, and even if the drain B has a minimum diameter (50 mmΦ) or a maximum diameter (100 mmΦ), the inclination direction of the leaf spring A is directed toward the drain B. can be corrected in the direction of insertion (extending direction of the drain).

JP 2016-145468 A

However, even with a drain cap that swings at two points, if the direction of inclination of the leaf spring A is not in the direction in which the drain B extends, but in the oblique direction of the drain B, when the leaf spring A is inserted, the leaf spring A slides in the oblique circumferential direction of the drain B, and both ends of the plate spring A come into contact with each other. 13 and 14, when the cap main body C is pushed in the direction of the drain B, the plate spring A does not advance in the drain B, and the swinging fulcrum of the plate spring A escapes from the drain B. There was a problem that D would rotate. In particular, when the drain B has the maximum or minimum diameter, the connecting member D must be greatly inclined, and there is a problem that both ends of the plate spring A come into contact within the drain B and the connecting member D tends to rotate. rice field.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a drain cap that prevents both ends of a leaf spring from coming into contact with each other and a connecting member from rotating when the leaf spring is inserted.

The drain cap of the present invention comprises a cap body arranged in an opening of a drain, a leaf spring inserted into the drain so as to fix the cap body to the opening of the drain, and connecting the cap body and the leaf spring. a connecting member;
the connecting member is pivotably connected to each of the leaf spring and the cap body,
The connecting member includes a guide portion that limits the swinging range of the leaf spring with respect to the connecting member ,
The guide portion is formed in a convex shape having a receiving surface that contacts the other side and an outer surface that supports the receiving surface .

In the drain cap of the present invention, the guide portion is set so as to suppress rotation of the connecting member due to pushing of the cap body when both ends of the leaf spring come into contact with each other.

In the drain cap of the present invention, the connecting member and the leaf spring are set to a position where they can be used for a drain with a maximum diameter or a drain with a minimum diameter even when the cap body is used upside down. It is what was done.

In the drain cap of the present invention, the outer surface of the guide portion has a smooth curve with respect to the direction of fluid flowing from the cap body to the drain.

According to the present invention, when the leaf spring is inserted, it is possible to prevent the connection member from rotating due to contact between both ends of the leaf spring.

Fig. 2 is an overall perspective view showing a drain cap; 4 is a perspective view showing a support portion main body, a connecting member, and a leaf spring of the cap main body; FIG. It is a conceptual side view showing a state in which the connecting member is swung. It is a perspective view which shows a cap main body. FIG. 11 is a perspective view showing another example of the cap main body; FIG. 11 is a perspective view showing another example of the cap main body; It is a perspective view which shows a connection member. FIG. 11 is a perspective view showing another example of the connecting member; FIG. 4 is an overall perspective view showing a state in which the drain cap is turned upside down and corresponds to a drain with a maximum diameter. FIG. 11 is a conceptual side view of the entire drain cap showing a state in which the connection member is swung while the drain cap is turned upside down. (A) is a plan view showing a state in which a plate spring is properly arranged in a drain, and (B) is a side view showing a state in which the plate spring is properly arranged in a drain. (A) is a plan view showing a state in which a plate spring is inserted obliquely into a drain and both ends of the plate spring are in contact; It is a side view which shows the state which the part contacted. FIG. 10 is a conceptual side view of the entire leaf spring inserted obliquely into the drain and both ends of the leaf spring are in contact with each other; FIG. 11 is a conceptual side view showing a state in which a plate spring is inserted obliquely into a drain and both ends of the plate spring are in contact with each other;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, the drain cap according to the embodiment of the present invention comprises a cap body 2 arranged at the opening of the drain 1, a plate spring 3 for fixing the cap body 2 to the opening of the drain 1, A connection member 4 for connecting the cap body 2 and the plate spring 3 is provided.

As shown in FIG. 4, the cap body 2 has a slit 2a through which rainwater passes, and is sized to cover the opening of the drain 1 (see FIG. 1). It is The cap main body 2 includes a first cap member 5 and a second cap member 6 and is configured to be swingable by a connection pin 7 . The first cap member 5 has a first main drainage surface 5a formed in a square plane and a first side drainage formed in a triangular plane by bending to both sides from the first main drainage surface 5a. The upper side of the first main drainage surface 5a is used as a connecting portion for swinging and a connecting pin 7 can be arranged. Similarly to the first cap member 5, the second cap member 6 has a second main drainage surface 6a formed in a square plane and a triangular shape bent to both sides from the second main drainage surface 6a. A flat second side drain surface 6b is provided, and the lower side of the second main drain surface 6a is used as a connection portion for swinging, and a connection pin 7 can be arranged. Furthermore, the cap main body 2 has an internal space and drainage surfaces in three directions to prevent being buried in fallen leaves and clogging.

As shown in FIGS. 1 and 2, the cap body 2 includes a second cap member 6 and a block-shaped support body 8. The support body 8 has a connection hole for connecting a connecting body 18. 8a.

Here, the cap body 2 may be of a fixed integral type provided with a main drainage surface 9 and side drainage surfaces 10 as shown in FIG. It may be of a one-piece type bent at the center so as to provide the drainage surface 12 .

As shown in FIG. 2, the leaf spring 3 has a fastening hole 13a in a central portion 13 in the longitudinal direction. A center portion 13 of the leaf spring 3 is fixed to a spring fixing member 14 by using a fixing means 15 such as a bolt, and both ends 16 in the longitudinal direction are expanded laterally outward. The spring fixing member 14 has a convex connecting portion 17 projecting in the opposite direction of the leaf spring 3 . The fixing surface of the spring fixing member 14 is provided with stoppers 14a on the upper and lower sides so that the plate spring 3 does not rotate. I have it.

As shown in FIGS. 1, 2 and 7, the connecting member 4 includes a connecting portion main body 18 having a predetermined length and guide portions 19 formed on the upper and lower surfaces of the connecting portion main body 18 . Here, the installation location of the guide portion 19 is not limited to the upper and lower surfaces of the connecting portion main body 18, but may be the side surface of the connecting portion main body 18, the spring fixing member 14 of the leaf spring 3, and the support portion of the cap main body 2. The main body 8 may be used. Further, the guide portion 19 is not limited to one formed on each of the upper and lower surfaces of the connecting portion main body 18, and may be formed on one of the upper and lower surfaces as shown in FIG. One or a plurality of locations selected from the side surface, the spring fixing member 14 of the plate spring 3, and the support body 8 of the cap body 2 may be used.

The connecting portion main body 18 is provided with a first connecting hole 18a and a second connecting hole 18b on both end sides, and is fastened to the spring fixing member 14 of the leaf spring 3 using connecting means 20 such as a bolt. is fastened to the supporting portion main body 8 using connecting means 21 such as bolts. In addition, the connecting portion main body 18 has a stepped end portion having the second connecting hole 18b to facilitate connection of the cap main body 2 with the supporting portion main body 8 .

The guide portion 19 includes a first guide body 22 located on the upper surface of the connecting portion main body 18 and formed closer to the center than the first connection hole 18a, and a first guide body 22 located on the lower surface of the connecting portion main body 18 and formed in the first connection hole. and a second guide body 23 formed in a portion closer to the center than 18a. The first guide body 22 and the second guide body 23 are provided with a receiving surface 24 with which the spring fixing member 14 (mating side) of the plate spring 3 can come into contact, and a predetermined distance from the apex of the receiving surface 24 so as to support the receiving surface 24 . It has an outer surface 25 formed with a width and is formed convexly. The receiving surface 24 of the guide portion 19 is formed by a straight surface oblique to the upper surface or the lower surface of the connecting portion main body 18 . The outer surface 25 of the guide portion 19 is curved so as to form a smooth curved surface in the direction of rainwater (fluid) flowing from the cap body 2 to the drain 1 . Here, the outer surface 25 of the guide portion 19 may be a straight surface or a curved surface as long as the convex guide portion 19 is formed.

More specifically, the receiving surface 24 of the guide portion 19 will be described. It has an angle. The receiving surface 24 of the second guide body 23 forms an angle of 4° or more and 70° or less, preferably 64°, with respect to the lower surface of the connecting portion main body 18 .

Next, the operation of the drain cap will be explained.

The direction of use of the drain cap is not limited upside down, and the drain cap can be used upside down. Also, depending on the configuration of the guide portion 19, the direction of use may be limited to the top and bottom.

A case where the connecting member 4 is positioned on the upper side of the cap body 2 (the case where the second cap member 6 is positioned on the upper side) will be described below.

When the drain cap is used for the drain 1 with the minimum diameter (50mmφ), the connecting member 4 is tilted greatly downward as shown in Figs. The plate spring 3 is tilted until it contacts the receiving surface 24 of the guide body 22, and the plate spring 3 is oriented horizontally. At this time, as shown in FIG. 3 (lower plate spring 3 in FIG. 3), the plate spring 3 is inserted so that the insertion direction is positioned on or near the central axis of the drain 1 having the minimum diameter (50 mmΦ). It's becoming

When the drain cap is used for the drain 1 with the maximum diameter (100 mmΦ), as shown in FIG. to point in the direction At this time, the leaf spring 3 is positioned on or near the central axis of the drain 1 having the maximum diameter (100 mmΦ) in the insertion direction.

When the plate spring 3 is inserted into the drain 1 and fixed, the both ends 16 of the plate spring 3 are bent so as to approach each other, the plate spring 3 is inserted into the drain 1, and the plate spring 3 is inserted into the drain 1. The interval between the two end portions 16 is widened by the elastic force of the plate spring 3 itself, and the plate spring 3 is pressed against the inner peripheral surface of the drain 1 and fixed.

When the drain cap is used for the drain 1 having a small diameter, the guide portion 19 comes into contact with the spring fixing member 14 of the plate spring 3 and the swinging angle between the connecting member 4 and the plate spring 3 is limited. , the rotation of the connecting member 4 as in the conventional example (see FIGS. 13 and 14) can be suppressed. Here, the guide part 19 uses the first guide body 22 only for the drain 1 with a small diameter, and when the drain 1 has a larger diameter than the drain 1 with a small diameter, the first guide body 22 and the second guide Alternatively, the body 23 may not be used. When the diameter of the drain 1 is larger than that of the drain 1, which has a smaller diameter, the inclination between the connecting member 4 and the plate spring 3 and the inclination between the connecting member 4 and the cap main body 2 are small. 19 application becomes unnecessary.

A case where the connection member 4 is located on the lower side of the cap body 2 (where the second cap member 6 is on the lower side) will be described below so that the drain cap can be used even when the cap body 2 is turned upside down.

When the drain cap is used for the drain 1 having the maximum diameter (100 mmΦ), the connecting member 4 is tilted greatly upward as shown in FIG. The plate spring 3 is tilted until it contacts the receiving surface 24 (see FIG. 2) of the plate spring 3 so that the plate spring 3 is oriented horizontally. At this time, as shown in FIG. 10 (the upper leaf spring 3 in FIG. 10), the insertion direction of the leaf spring 3 is positioned on or near the central axis of the drain 1 having the maximum diameter (100 mmΦ). ing.

When the drain cap is used for the drain 1 with the minimum diameter (50 mmΦ), the connection member 4 should not be tilted too much as shown in FIG. 10 (the leaf spring 3 on the lower side in FIG. Orient horizontally. At this time, the leaf spring 3 is positioned on or near the central axis of the drain 1 having the minimum diameter (50 mmΦ) in the insertion direction.

When the plate spring 3 is inserted into the drain 1 and fixed, the both ends 16 of the plate spring 3 are curved to bring the plate spring 3 closer to each other, and the plate spring 3 is inserted into the drain 1 as in the previous case. , the elastic force of the leaf spring 3 itself widens the interval between the two ends 16 in the drain 1, and the leaf spring 3 is pressed against the inner peripheral surface of the drain 1 and fixed.

When the cap body 2 of the drain cap is turned upside down in this way and used for the drain 1 having a large diameter, the guide portion 19 comes into contact with the spring fixing member 14 of the plate spring 3 and the connection member 4 and the plate spring 3 are separated. is restricted, the rotation of the connecting member 4 can be suppressed. Here, the guide part 19 uses the first guide body 22 only for the drain 1 with a large diameter so that the inclination of the connecting member 4 increases upward when the guide part 19 is turned upside down. If the diameter is smaller than that, the first guide body 22 and the second guide body 23 may not be used. When the diameter of the drain 1 is smaller than that of the drain 1, which has a larger diameter, the inclination between the connecting member 4 and the leaf spring 3 and the inclination between the connecting member 4 and the cap body 2 are small. Application of the guide part 19 becomes unnecessary.

Therefore, in the drain cap, when the leaf spring 3 is inserted, it is possible to prevent the connection member 4 from rotating due to the contact of the both ends 16 of the leaf spring 3 .

In the drain cap, the guide portion 19 is set so as to suppress the rotation of the connecting member 4 due to the pressing of the cap body 2 when the both end portions 16 of the plate spring 3 come into contact with each other. This facilitates the insertion of the leaf spring 3 and appropriately suppresses the rotation of the connecting member 4 .

In the drain cap, the connection member 4 and the plate spring 3 are set at positions where they can be used for the drain 1 with the maximum diameter or the drain 1 with the minimum diameter even when the cap body 2 is used upside down. As a result, the rotation of the connecting member 4 can be suppressed, and at the same time, the degree of freedom of use can be increased as a universal design.

In the drain cap, the guide portion 19 has a receiving surface 24 with which the other side comes into contact, and an outer surface 25 that supports the receiving surface 24. When the guide portion 19 is formed in a convex shape, the simple shape of the guide portion 19 allows the connecting member 4 to move. Rotation can be suppressed.

In the drain cap, if the outer surface 25 of the guide portion 19 has a smooth curve with respect to the direction of the fluid flowing from the cap body 2 to the drain 1, it suppresses the rotation of the connecting member 4 and at the same time prevents rain water (fluid) from flowing. It is possible to prevent fallen leaves and the like that have flowed in together from being caught in the guide part 19. - 特許庁

It should be noted that the drain cap of the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

1 Drain 2 Cap body 3 Leaf spring 4 Connecting member 16 Both ends 19 Guide part 24 Receiving surface 25 Outer surface

Claims (4)

a cap body arranged in an opening of a drain, a plate spring inserted into the drain so as to fix the cap body to the drain opening, and a connecting member connecting the cap body and the plate spring,
the connecting member is pivotably connected to each of the leaf spring and the cap body,
The connecting member includes a guide portion that limits the swinging range of the leaf spring with respect to the connecting member ,
A drain cap , wherein the guide portion is formed in a convex shape having a receiving surface that contacts the other side and an outer surface that supports the receiving surface . 2. The drain according to claim 1, wherein the guide portion is set so as to suppress rotation of the connecting member due to pushing of the cap body when both ends of the plate spring come into contact with each other. cap. The connection member and the plate spring are set at positions that allow them to be used for a drain with a maximum diameter or a drain with a minimum diameter even when the cap body is turned upside down and used. The drain cap according to claim 1 or 2. The drain cap according to any one of claims 1 to 3 , wherein the outer surface of the guide portion has a smooth curve with respect to the direction of the fluid flowing from the cap main body to the drain.

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