JP7544564B2 - Seat cap, seat cap installation method, and shutter device - Google Patents

Description

The present invention relates to a seat cap that is attached to a seat member on the closing end side of an opening/closing body in a shutter device, a method for attaching this seat cap, and a shutter device equipped with this seat cap.

Conventionally, this type of invention includes an opening and closing device, as described in Patent Document 1, which includes an opening and closing body having a seat plate member (sometimes called a drip tray) that extends in the width direction connected to the closing direction end side, and a guide rail that surrounds the width direction end side of the opening and closing body in a concave shape and guides it in the opening and closing direction, so that when the opening and closing body is closed, the seat plate member abuts against an abutment target portion on the closing direction side.
In such an opening and closing device, a seat plate cap made of synthetic resin may be provided on the lateral end side of the seat plate member to prevent the lateral end side of the seat plate member from coming into contact with objects, etc. and damaging the objects, etc. during the opening and closing operation of the opening and closing body.

JP 2019-173450 A

However, with the above-described configuration, there is a risk that the seat plate cap may be damaged or come off due to the impact or the like that occurs when the opening/closing body is repeatedly fully closed.
In such a case, it becomes necessary to attach a new seat cap of the same shape as the original to the seat member from which the seat cap has come off due to damage or the like.
However, since the seat plate cap is usually designed to be fitted to the seat plate member from the widthwise end side, it is not easy to retrofit it to a seat plate member of a shutter device that has already been installed at a site or the like.

In view of the above problems, the present invention has the following configuration.
A seat plate cap for a shutter device that is attached to a seat plate member having a penetrating seat plate cap engaging portion on its widthwise end side to cover the widthwise end of the seat plate member, characterized in that the seat plate cap is integrally provided with a first covering portion formed to cover the widthwise end of the seat plate member and an engaging piece portion formed to engage and disengage with the seat plate cap engaging portion, and the engaging piece portion is arranged to be detachable.

According to the present invention, a seat plate cap can be easily retrofitted to the seat plate member of an existing shutter device.

1 is a front view showing a shutter device equipped with an example of a seat plate cap according to the present invention. 1A is an enlarged front view of a main portion showing a state in which a seat plate cap with an engagement piece portion detached is attached to an end side of a seat plate member, and FIG. 1A is an enlarged front view of a main portion showing an end side of a seat plate member, and FIG. 1A is a diagram of an example of a guide rail as viewed from the inside in the width direction of the opening/closing body, with a portion cut away to show the internal structure, and FIG. 1 is a perspective image showing an example of a seat cap according to the present invention. (a) is a plan view of the seat plate cap, with a portion cut away to show the internal structure, (b) is a front view of (a), (c) is a right side view of (b), and (d) is a cross-sectional view taken at the center in the thickness direction of the opening/closing body. 13A and 13B show a state in which an engagement piece portion has been separated from the seat plate cap, with FIG. This is a front view of the main parts showing the procedure for attaching a seat plate cap to a seat plate member, where (a) is the state before the seat plate cap is attached, and (b) is the state in the middle of the seat plate cap being placed on the end of the seat plate member that has moved inward in the width direction of the opening/closing body. This is a front view of the main parts showing the procedure for attaching a seat plate cap to a seat plate member, where (c) shows the state in which the seat plate cap is in the middle of being placed on the end of the seat plate member, (d) shows the state after the seat plate cap has been attached to the end of the seat plate member, and (e) shows the state after the seat plate member has been moved outward in the width direction of the opening/closing body and returned to its original position. 1 shows another example of the seat plate cap according to the present invention, in which (a) is a plan view with a portion cut away to show the internal structure, (b) is a front view of (a), and (c) is a right side view of (b).

This embodiment discloses the following features.
The first feature is a seat plate cap for a shutter device that is attached to a seat plate member having a penetrating seat plate cap engaging portion on the widthwise end side and covers the widthwise end of the seat plate member, and is integrally provided with a first covering portion formed to cover the widthwise end of the seat plate member, and an engaging piece portion formed to engage and disengage with the seat plate cap engaging portion, and the engaging piece portion is provided so as to be detachable (see Figures 1 to 10).

The second feature is that the seat plate member is integrally provided with a second covering portion formed to fit concavely into the widthwise end side of the seat plate member at a position different from the first covering portion, and the engaging piece portion is provided inside the concave portion of the second covering portion (see Figures 5 to 7 and 10).

As a third feature, the second covering portion is formed so as to expand and contract in the thickness direction of the opening and closing body by elastic bending deformation, thereby engaging and disengaging the engaging piece portion with the seat plate cap engaging portion (see Figures 5, 6, and 10).

The fourth feature is that a groove is provided at the base of the engaging piece for cutting the engaging piece (see Figure 10).

The fifth feature is a method for attaching the seat plate cap, which includes a step of separating the engagement piece before fitting the seat plate cap to the seat plate member (see FIG. 7).

The sixth feature includes a step of fastening the seat cap to the seat member using a fastener after fitting the seat cap to the seat member (see FIG. 9(d)).

The seventh feature is that the shutter device having the seat plate member is provided with a guide rail that inserts at least a portion of the seat plate cap into the opening and guiding it in the opening/closing direction, and includes a process of moving the seat plate member inward in the opening/closing body width direction so as to pull it away from the guide rail before fitting the seat plate cap to the seat plate member (see Fig. 9 (d) and (e)).

The eighth feature is that the seat plate cap is attached to the seat plate member when the opening and closing body of the shutter device is in a substantially fully open state (see Figures 1, 8 and 9).

The ninth feature is that the opening in the guide rail has a wide portion at a position corresponding to the seat cap when the opening/closing body is substantially fully open, the opening width of which is larger than the opening width on the side in the closing direction of the opening/closing body (see FIG. 4).

The tenth feature is that at least a portion of the seat plate cap is inserted into the opening of the guide rail, and the seat plate cap is rotated to fit onto the seat plate member (see Figures 8 and 9).

The eleventh feature is that the shutter device is configured with the seat plate cap (see Figure 1).

<Specific embodiment>
Next, specific embodiments having the above-mentioned features will be described in detail with reference to the drawings.

In the following description, the term "thickness direction of the opening/closing body" refers to the thickness direction of the opening/closing body in the closed state, and the term "width direction of the opening/closing body" refers to a direction that is substantially perpendicular to the opening/closing direction of the opening/closing body, but is not the thickness direction of the opening/closing body.
Additionally, the "opening/closing direction of the opening/closing body" refers to the direction in which the opening/closing body slides to separate or open a space.

In addition, the term "outer side in the width direction of the opening/closing body" refers to the direction toward the outside of the opening/closing body along the width direction of the opening/closing body. For example, when the guide rail on the right side is used as a reference, the outer side in the width direction of the opening/closing body is the right side.
In addition, the term "inner side in the width direction of the opening/closing body" refers to the direction toward the inside of the opening/closing body along the width direction of the opening/closing body. For example, when the guide rail on the right side is used as a reference, the inner side in the width direction of the opening/closing body is the left side.

Additionally, "outside in the thickness direction of the opening/closing body" refers to the side in the direction away from the center of the thickness of the opening/closing body along the thickness direction of the opening/closing body.
Additionally, the term "inner side in the thickness direction of the opening/closing body" refers to the side toward the center of the thickness of the opening/closing body along the thickness direction of the opening/closing body.

As shown in FIG. 1, the shutter device 1 comprises an opening/closing body 10 that performs a closing operation to separate a space, a guide rail 20 that surrounds the widthwise end side of the opening/closing body 10 in a concave shape to guide it in the opening/closing direction, and a storage section 40 that stores and extends the opening/closing body 10 on the opening direction side, and is attached to the opening part of a structure such as a garage, factory, building, vehicle, or ship.

The opening/closing body 10 is made by connecting multiple slats 11a, which are made by bending horizontally elongated, roughly rectangular metal plates, so that they can rotate between adjacent slats 11a, 11a, which form the opening/closing body main body 11.A seat plate member 12 (sometimes called a drip pan) is connected across the width to the closing end of the opening/closing body main body 11 in order to abut against the contact target area G when fully closed, and seat plate caps 13, 13 are attached to both ends of the seat plate member 12 in the width direction.

The seat panel member 12 is a member that is connected in the width direction of the opening/closing body along the lowest slat 11a, and in the illustrated example, is configured to have an inverted T-shape in vertical cross section by bending a long, approximately band-shaped metal plate in the width direction of the opening/closing body (see Figures 2 and 3).
The seat plate member 12 in the illustrated example has a flange portion 12a that protrudes in the thickness direction of the opening/closing body on the opening/closing body closing direction side and continues in the width direction of the opening/closing body, and a rising piece portion 12b that rises from this flange portion 12a in the opening/closing body opening direction (see Figure 3).

Each slat 11a is connected to the other slats 11a so that it can slide in the width direction of the opening and closing body. Also, the seat plate member 12 is connected to the slat 11a above it so that it can slide in the width direction of the opening and closing body.

The flange portion 12a is formed in a generally flat plate shape protruding from the lower end of the rising piece portion 12b on both sides in the thickness direction of the opening/closing body, and is continuous in an elongated shape in the width direction of the opening/closing body.
One end and the other end of the flange 12a in the opening/closing body width direction are each formed into an edge shape and are adjacent to the guide rail 20. The edge-shaped portion 12a1 (see FIG. 3) is covered by a seat plate cap 13, which will be described later.

The rising piece 12b is formed in a flat plate shape that is approximately perpendicular to the flange portion 12a and continues in an elongated shape in the width direction of the opening/closing body. A connection portion 12c is formed on the upper end side of the rising piece 12b and is rotatably connected to the lowermost slat 11a.
A through-hole seat cap locking portion 12b1 and a thick portion 12b2 located below the seat cap locking portion 12b1 are provided on one end side and the other end side in the opening/closing body width direction of the rising piece portion 12b.

The seat cap locking portion 12b1 is a through hole for locking the seat cap 13 before replacement, and in the illustrated example, is formed in a rectangular shape that is elongated in the width direction of the opening and closing body. This seat cap locking portion 12b1 can also be a circular hole, an elongated hole, a notch, etc.

The thick portion 12b2 is formed by processing the lower half side of the rising piece 12b at the end side in the opening/closing body width direction so that it is thicker than the upper half side, and is located outboard of the flange portion 12a in the opening/closing body width direction.
According to an example shown in FIG. 3, the thick portion 12b2 is formed by bending the lower end side of a band-shaped metal plate that constitutes the seat plate member 12 to have a thick wall.
This thick portion 12b2 is inserted into the seat plate cap 13 described below and fits into the inner surface of the seat plate cap 13 to hold the seat plate cap 13 steady.
In this specification, the portion of the rising piece 12b above the thick portion 12b2 is referred to as a thin portion 12b3.

The seat plate cap 13 is integrally composed of a first covering portion 13a formed to cover the widthwise end portion of the flange portion 12a of the seat plate member 12, a second covering portion 13b formed to fit concavely into the widthwise end side of the rising piece portion 12b of the seat plate member 12 at a position different from the first covering portion 13a, and an engaging piece portion 13c formed to protrude from the inner surface side of the concave portion of the second covering portion 13b and fit into the seat plate cap engaging portion 12b1 (see Figures 5 and 6).
The seat plate cap 13 expands and contracts the concave portion of the second covering portion 13b by elastic bending deformation, and the engaging piece portion 13c engages and disengages with the seat plate cap engaging portion 12b1.

The first covering portion 13a is formed in a transversely concave shape that fits into the end side of the flange portion 12a so as to cover the edge portion 12a1 on the end side of the flange portion 12a.
In more detail, this first covering portion 13a is formed in a concave shape having an upper piece portion 13a1 located on the upper side of the end side of the flange portion 12a, and a lower piece portion 13a2 located on the lower side of the end side of the flange portion 12a, and the dimension by which the lower piece portion 13a2 protrudes inward in the width direction of the opening/closing body is smaller than the dimension by which the upper piece portion 13a1 protrudes inward in the width direction of the opening/closing body (see Figure 5).

The second covering portion 13b is connected to the first covering portion 13a on the outer side in the width direction of the opening/closing body, and extends in the opening/closing body opening direction.
This second covering portion 13b has a first piece 13b1 that covers the thick portion 12b2 of the rising piece 12b from one side, a second piece 13b2 that covers the thick portion 12b2 from the other side, and a bottom piece 13b3 that connects the first piece 13b1 and the second piece 13b2 at their lower ends (see Figures 5 and 6).

The first piece 13b1 and the second piece 13b2 are each formed to bend elastically in the thickness direction of the opening/closing body. In other words, the seat plate cap 13 expands or reduces the width of the recessed portion between the first piece 13b1 and the second piece 13b2 by bending them.

A wall portion 13b4 is provided at the inner ends of the first arm 13b1 and the second arm 13b2 in the width direction of the opening/closing body, the wall portion 13b4 having an opening through which the thin portion 12b3 of the seat plate member 12 can be inserted but the thick portion 12b2 cannot be inserted (see Figure 5).
The inner ends of the first arm 13b1 and the second arm 13b2 in the width direction of the opening/closing body are open so that the rising arm 12b can be inserted outward in the width direction of the opening/closing body (see Figures 2 and 6).

The ends of the first piece 13b1 and the second piece 13b2 facing the opening direction of the opening/closing body are open so that the thin portion 12b3 of the seat plate member 12 can be inserted therethrough, and have an engagement piece 13c that is inserted into the seat plate cap locking portion 12b1 (see Figures 5 and 6).

The first piece 13b1 extends upward along the back surface of the thick portion 12b2, and its upper end is bent inward in the thickness direction of the opening/closing body so as to cover the upper end of the thick portion 12b2.

The engagement piece 13c protrudes from the upper end side of the first piece 13b1 toward the second piece 13b2, and at the base of the protruding portion, there is a narrow portion 13c1 that is narrower in the width direction of the opening/closing body than the tip side, and it can be separated at this narrow portion 13c1.

The outer end of the engagement piece 13c in the width direction of the opening/closing body is formed into a concave shape by a narrow width portion 13c1 (see FIG. 5). This concave portion fits into the inner edge of the seat plate cap engagement portion 12b1 when the engagement piece 13c is inserted into the seat plate cap engagement portion 12b1.
Furthermore, the narrow width portion 13c1 can facilitate the operation of separating the engaging piece portion 13c.
FIG. 2 shows a state in which the seat plate cap 13 from which the engaging piece portion 13c has been removed is attached to the seat plate member 12.

The second piece 13b2 extends upward along the surface of the thick portion 12b2, and its upper end is bent inward in the thickness direction of the opening/closing body so as to cover the upper end of the thick portion 12b2. A notch 13b21 is provided on the upper end side of the second piece 13b2 so as to fit loosely into the engagement piece 13c (see FIG. 5).

When the opening/closing body 10 opens and closes, the guide rail 20 inserts a portion of the seat cap 13 inside the guide rail 20, guiding the widthwise end of the opening/closing body 10 in the opening direction by inserting the widthwise end of the opening/closing body 10 into the opening 21.

More specifically, the guide rail 20 is a member having a generally U-shaped cross section and an opening 21 on the inner side in the width direction of the opening/closing body.
The opening 21 is continuous and long in the opening/closing direction of the opening/closing body. Both edges of the opening 21 are covered with a cushioning material 22 made of an elastic material over substantially the entire length in the opening/closing direction of the opening/closing body (see FIG. 4(b)). It is possible to omit the cushioning material 22.

The opening 21 of the guide rail 20 has a wide portion 21a, which has a larger opening width than the opening/closing body closing direction side, at a position corresponding to the second covering portion 13b of the seat plate cap 13 when the opening/closing body 10 is approximately fully open.
According to an example shown in FIG. 4(a), the wide portion 21a has an opening width that gradually increases in the opening direction of the opening/closing body.

As shown in FIG. 1, the storage section 40 includes a storage case 41 having an opening formed at the bottom for allowing the opening/closing body 10 to appear and disappear, a winding shaft 42 for winding up and paying out the opening/closing body 10, an opening/closing machine 43 for driving and rotating the winding shaft 42 and braking it via a power transmission mechanism such as a chain and sprocket, and a control circuit (not shown).
The present invention can be applied to an automatic shutter device, such as an electric shutter device, and a manual shutter device.

<How to attach the seat cap>
Next, a procedure for attaching a new seat cap 13 to a shutter device 1 from which the seat cap has come off due to damage or the like will be described.

First, for a new replacement seat plate cap 13, the engaging piece portion 13c is separated from the second covering portion 13b (specifically, the first piece portion 13b1).
This operation can be easily performed by cutting the base side (outer side in the thickness direction of the opening/closing body) of the narrow width portion 13c1 of the engaging piece portion 13c using a tool such as a nipper.

Next, as indicated by the two-dot chain line in FIG. 1, the opening/closing body 10 is substantially fully opened to ensure a working space below the seat plate member 12.
In this fully open state, the lower end side of the opening/closing body 10 including the seat plate member 12 is moved inward in the opening/closing body width direction (to the left in FIG. 8 ) and separated from the guide rail 20 .
In other words, the width direction end of the seat panel member 12 on the side where the seat panel cap 13 is to be fitted is moved so as to be separated from the guide rail 20. This makes it easier to perform the operation of fitting the seat panel cap 13.

The movement may be such that the entire opening/closing body 10 moves in the width direction of the opening/closing body, or such that the seat plate member 12 slides in the width direction of the opening/closing end relative to the slats 11a above it.
According to the above process, as shown in FIG. 8(b), the widthwise end portion (edge-like portion 12a1) of the flange portion 12a is pulled away from the guide rail 20 by a relatively large amount, and the thick portion 12b2 of the rising piece portion 12b is exposed to a relatively large extent on the outside of the guide rail 20.
This facilitates the operation of attaching the seat plate cap 13 to the widthwise end side of the seat plate member 12 .

In this state, the seat plate cap 13 from which the engaging piece portion 13c has been removed is tilted as shown in FIG. 8(b).
Then, while rotating the tilted seat plate cap 13 toward the normal position, the first covering portion 13a is placed over the widthwise end portion (edge portion 12a1) of the flange portion 12a of the seat plate member 12, and the concave portion of the second covering portion 13b is elastically expanded in the thickness direction of the opening/closing body to fit into the thick portion 12b2 of the seat plate member 12. During the rotation, a portion of the second covering portion 13b of the seat plate cap 13 is inserted into the opening 21 of the guide rail 20.

Next, as shown in Figures 9 (c) and (d), while rotating the seat plate cap 13 to return the inclination of the seat plate cap 13, the first covering portion 13a of the seat plate cap 13 is fitted deeper into the widthwise end of the flange portion 12a, and the second covering portion 13b of the seat plate cap 13 is also fitted deeper into the thick portion 12b2, so that the seat plate cap 13 is positioned linearly outside the opening/closing body width direction relative to the seat plate member 12.
As described above, in fitting the seat plate cap 13 to the seat plate member 12, the seat plate cap 13 can be easily fitted to the seat plate member 12 by rotating the seat plate cap 13 along the opening/closing direction.
These operations are easier than, for example, when the opening/closing body 10 is in a mid-closing position because the second covering portion 13b is positioned on the wide portion 21a of the guide rail 20.

Next, the seat plate cap 13 is fastened to the seat plate member 12 using the fastener 14 (see FIG. 9(d)).
The fastener 14 is a rivet consisting of a head and a shaft, and the shaft is inserted through the first piece 13b1, the rising piece 12b of the seat plate member 12, the second piece 13b2, etc., and its tip side is crimped.
In this way, the seat plate cap locking portion 12 b 1 of the seat plate member 12 does not need to be used to fasten the new seat plate cap 13 to the seat plate member 12 .

As another example of the fastener 14, a screw-fitting member such as a screw and a nut can also be used.
As a further alternative example, the seat plate cap 13 may be fastened to the seat plate member 12 by adhesion, fitting or the like, without using the fastener 14 .
As another particularly preferred example, the first covering portion 13a of the seat plate cap 13 is fixed to the flange portion 12a of the seat plate member 12 by engaging and/or fitting.

Next, as shown in FIG. 9(e), the lower end of the opening/closing body 10, including the seat plate member 12, is moved outward in the width direction of the opening/closing body (to the right in the figure) to return it to its original normal position.

Therefore, according to the above-described seat plate cap 13 and the method for attaching the seat plate cap 13, the seat plate cap 13 can be easily fitted to the seat plate member 12 of the existing opening/closing body 10 and fastened thereto.
That is, the replacement of the seat plate cap 13 can be easily performed.

<Modification>
In the above-mentioned configuration, the seat plate cap 13 can be replaced with a seat plate cap 13' shown in FIG.
The seat plate cap 13' is the same as the seat plate cap 13, except that a recessed groove 13c2 is provided on the base side of the engaging piece 13c to facilitate cutting off the engaging piece 13c.
The recessed groove 13c2 is a groove having a V-shape in vertical cross section (see FIG. 10(c)), and is formed over the entire width of the narrow width portion 13c1 of the engaging piece 13c in the opening/closing body width direction.

The seat cap 13' configured as above can be easily separated by bending the engaging piece 13c along the recessed groove 13c2, and the cut surface formed in this process has a good appearance.

In the above embodiment, the seat cap is formed to cover the widthwise end of the seat member 12 having an inverted T-shaped cross section. However, other examples of seat caps may be formed to cover the end of a seat member having a cross-sectional shape other than that shown in the figure, such as a rectangular cross section.

In addition, in the above embodiment, the seat cap is applied to a shutter device that closes the opening and closing body from top to bottom, but as another example, the seat cap can be applied to a shutter device that closes the opening and closing body in the horizontal direction with the opening and closing body in the vertical direction in the width direction, or a shutter device that closes the opening and closing body in the horizontal direction with the width direction being the horizontal direction.

Furthermore, the present invention is not limited to the above-mentioned embodiments, and can be modified as appropriate without departing from the spirit and scope of the present invention.

1: Shutter device 10: Opening/closing body 12: Seat plate member 12a: Flange part 12b: Standing piece part 12b1: Seat plate cap locking part 13, 13': Seat plate cap 13a: First covering part 13b: Second covering part 13b1: First piece 13b2: Second piece 13c: Engagement piece 20: Guide rail 21: Opening

Claims (11)

A seat cap for a shutter device is attached to a seat member having a through-shaped seat cap engaging portion on a widthwise end side to cover the widthwise end of the seat member,
A seat plate cap characterized in that it is integrally formed with a first covering portion formed to cover the widthwise end portion of the seat plate member and an engaging piece portion formed to engage and disengage with the seat plate cap engaging portion, and the engaging piece portion is arranged to be detachable. A second covering portion is integrally formed so as to be recessed and fitted into the end side of the seat plate member in the width direction at a position different from the first covering portion,
2. The base plate cap according to claim 1, wherein the engaging piece portion is provided on the inside of the recessed portion of the second covering portion.
The seat cap according to claim 2, characterized in that the second covering portion is formed so as to expand and contract in the thickness direction of the opening and closing body by elastic bending deformation, thereby engaging and disengaging the engagement piece portion with the seat cap engagement portion. The seat cap according to any one of claims 1 to 3, characterized in that a recessed groove for cutting the engaging piece is provided at the base side of the engaging piece. The method for attaching a seat plate cap according to any one of claims 1 to 4, further comprising a step of separating the engagement piece before fitting the seat plate cap to the seat plate member. The method for attaching a seat plate cap according to claim 5, further comprising a step of fastening the seat plate cap to the seat plate member using a fastener after fitting the seat plate cap to the seat plate member. The shutter device having the seat plate member is provided with a guide rail that inserts at least a portion of the seat plate cap into an opening and guides it in an opening/closing direction,
7. The method for attaching a seat plate cap according to claim 5 or 6, further comprising a step of moving the seat plate member inward in the width direction of the opening/closing body so as to pull it away from the guide rail before fitting the seat plate cap to the seat plate member. The method for attaching the seat cap according to claim 7, characterized in that the seat cap is attached to the seat member with the opening and closing body of the shutter device substantially fully open. The method for attaching a seat cap according to claim 8, characterized in that the opening in the guide rail has a wide portion at a position corresponding to the seat cap when the opening/closing body is substantially fully open, the opening width of which is larger than that of the opening/closing body closing direction side. The method for attaching a seat plate cap according to any one of claims 7 to 9, characterized in that at least a portion of the seat plate cap is inserted into the opening of the guide rail, and the seat plate cap is fitted to the seat plate member while rotating. A shutter device equipped with a seat cap according to any one of claims 1 to 4.

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