JP7579211B2 - Guide Device - Google Patents

Description

The present invention relates to a guide device for overhead sliding doors.

Conventionally, there is known a guide device for overhead sliding doors that can move in the opening and closing direction while being spaced up and down from the floor surface. For example, the following Patent Document 1 proposes a sliding door guide device in which a magnetic attachment means for protruding a guide protrusion by magnetic force is provided with a suction base that is cantilevered so as to be able to swing freely.

Patent Publication 2014-043693

However, in the sliding door guide device of Patent Document 1, the suction platform is cantilevered so that it can swing freely, which limits the movement of the base end side that serves as the fulcrum, and depending on the state of contact between the magnetic attachment means and the guide protrusion, the suction platform may not swing and may be damaged.

The present invention was devised in consideration of the above-mentioned circumstances, and its main objective is to provide a guide device that can prevent damage caused by contact when the overhead sliding door moves in the opening and closing directions.

The present invention is a guide device used for an overhead sliding door that can move in the opening and closing direction while being spaced apart vertically from a floor surface, and includes a guide pin provided on the floor surface, a guide groove provided on the underside of the overhead sliding door, and a guide receiver provided adjacent to the guide groove, the guide groove having a groove portion that allows the guide pin to slide in the opening and closing direction, the guide receiver including a main body member fixed to the underside of the overhead sliding door, and a holder member that guides the guide pin into the groove portion of the guide groove by protruding it from the floor surface using magnetic force, and the holder member is arranged on the main body member so that it can slide vertically.

In the guide device of the present invention, it is preferable that the holder member has a lower end surface, at least a portion of which can protrude downward from the main body member.

In the guide device of the present invention, it is preferable that the main body member has a sliding portion that extends in the vertical direction.

In the guide device of the present invention, it is preferable that the sliding portion includes a first sliding portion provided on the side of the guide groove in the opening and closing direction of the main body member, and a second sliding portion provided on the opposite side.

In the guide device of the present invention, it is desirable that the length of the first sliding portion is equal to the length of the second sliding portion.

In the guide device of the present invention, it is preferable that the holder member has a protrusion that moves within the sliding portion.

In the guide device of the present invention, it is preferable that the lower end surface of the holder member is a concave curved surface that is concave upward when viewed from the opening and closing direction.

In the guide device of the present invention, it is preferable that the guide pin has a convex curved surface whose top surface is convex upward, and that the radius of curvature of the concave curved surface of the holder member is greater than the radius of curvature of the convex curved surface of the guide pin.

In the guide device of the present invention, the holder member is arranged inside the main body member so that it can slide up and down. Therefore, even if the holder member comes into contact with the guide pin, the holder member can be moved upward regardless of the state of contact. Therefore, the guide device of the present invention can prevent damage caused by contact when the overhead sliding door moves in the opening and closing directions.

1 is a perspective view showing an embodiment of a guide device of the present invention; 11 is a cross-sectional view of the guide device when the distance between the floor surface and the upper hung sliding door is a first distance. FIG. 13 is a cross-sectional view of the guide device when the distance between the floor surface and the upper hung sliding door is a second distance. FIG. 3 is a cross-sectional view of the guide device when the upper suspended sliding door of FIG. 2 moves in the closing direction. 4 is a cross-sectional view of the guide device when the upper suspended sliding door of FIG. 3 moves in the closing direction. FIG. FIG. 4 is a side view of the guide device as viewed from the closing direction. FIG.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
Fig. 1 is a perspective view showing a guide device 1 of this embodiment. As shown in Fig. 1, the guide device 1 of this embodiment is suitably used for an overhead sliding door D that is movable in an opening/closing direction x while being spaced apart from a floor surface F in a vertical direction z.

In this specification, the opening/closing direction x is the direction in which the upper hanging sliding door D moves when it is opened or closed, and corresponds to the direction indicated by the symbol x in FIG. 1. The door thickness direction y is the thickness direction of the upper hanging sliding door D, and corresponds to the direction indicated by the symbol y in FIG. 1. The vertical direction z is the direction in which gravity acts, and corresponds to the direction indicated by the symbol z in FIG. The opening/closing direction x, the door thickness direction y, and the vertical direction z are perpendicular to each other.

In this specification, the opening/closing direction x includes the closing direction x1 and the opening direction x2. The up-down direction z includes the upward direction z1 and the downward direction z2. Furthermore, the directions specified by the members constituting the guide device 1 correspond to the directions when the guide device 1 is attached to the overhead sliding door D and the floor surface F, respectively.

Such overhead sliding doors D are formed with predetermined dimensions. Therefore, the distance between the overhead sliding door D and the floor surface F in the vertical direction z may vary depending on the construction state of the installation position of the overhead sliding door D.

Figure 2 is a cross-sectional view of the guide device 1 when the distance between the floor surface F and the upper hanging sliding door D is a first distance L1, and Figure 3 is a cross-sectional view of the guide device 1 when the distance between the floor surface F and the upper hanging sliding door D is a second distance L2 that is smaller than the first distance L1. As shown in Figures 2 and 3, the guide device 1 of this embodiment includes a guide pin 2 provided on the floor surface F, a guide groove 3 provided on the underside Da of the upper hanging sliding door D, and a guide receiver 4 provided adjacent to the guide groove 3.

The guide pin 2 in this embodiment is provided so as to be able to protrude in the upward direction z1 from the floor surface F. The guide pin 2 includes, for example, a fixed member 21 fixed inside the floor surface F, a first member 22 held by the fixed member 21 so as to be movable in the vertical direction z, and a second member 23 held by the first member 22 so as to be movable in the vertical direction z. Since such a guide pin 2 is housed within the floor surface F when not engaged with the overhead sliding door D, the floor surface F can be made flat when the overhead sliding door D is opened.

The guide groove 3 of this embodiment has a groove portion 31 that allows the second member 23 of the guide pin 2 to slide in the opening/closing direction x. The guide groove 3 is made of, for example, resin or non-magnetic metal. When the guide groove 3 is made of resin, for example, ABS resin can be mentioned. When the guide groove 3 is made of non-magnetic metal, it is preferable to select titanium, aluminum, etc. Such a guide groove 3 can suppress movement of the overhead sliding door D in the door thickness direction y by engaging with the guide pin 2 without impeding the movement of the overhead sliding door D in the opening/closing direction x.

The guide receiver 4 in this embodiment includes a main body member 41 that is fixed to the underside Da of the overhead sliding door D, and a holder member 42 that uses magnetic force to guide the second member 23 of the guide pin 2 into the groove portion 31 of the guide groove 3 by protruding it from the floor surface F.

The holder member 42 of this embodiment is arranged on the main body member 41 so as to be slidable in the vertical direction z. Even if the holder member 42 and the guide pin 2 come into contact with each other, this guide device 1 can move the holder member 42 in the upward direction z1 regardless of the state of contact. Therefore, the guide device 1 of this embodiment can prevent damage caused by contact when the upper hanging sliding door D moves in the opening/closing direction x.

In a more preferred embodiment, the holder member 42 has a lower end surface 42a that can protrude downward in the direction z2 from the main body member 41, at least in part. Even when the distance in the vertical direction z between the floor surface F and the overhead sliding door D as shown in FIG. 2 is large, this type of holder member 42 protrudes downward in the direction z2 from the main body member 41, thereby making it possible to reduce the distance between the holder member 42 and the guide pin 2.

Therefore, in the guide device 1 of this embodiment, even if the distance between the floor surface F and the overhead sliding door D in the vertical direction z is large, the magnetic force acts between the holder member 42 and the guide pin 2, so that the second member 23 of the guide pin 2 can reliably protrude from the floor surface F.

In this embodiment, even if the distance in the vertical direction z between the floor surface F and the overhead sliding door D is small as shown in FIG. 3, at least a portion of the lower end surface 42a protrudes downward z2n beyond the main body member 41.

For example, when the guide receiver 4 is positioned in the upward direction z1 of the guide pin 2 as the upper hanging sliding door D moves in the closing direction x1, the holder member 42 is lifted by contact between the holder member 42 and the guide pin 2, and can move in the upward direction z1 of the main body member 41. Since the holder member 42 in this embodiment is slidable in the vertical direction z, it can be moved smoothly in the vertical direction z regardless of the state of contact with the guide pin 2.

Therefore, in the guide device 1 of this embodiment, even if the distance between the floor surface F and the overhead sliding door D in the vertical direction z is small, the holder member 42 moves in the upward direction z1, thereby preventing damage caused by contact between the holder member 42 and the guide pin 2.

Figure 4 is a cross-sectional view of the guide device 1 when the upper hanging sliding door D of Figure 2 moves in the closing direction x1. As shown in Figures 2 and 4, the holder member 42 of this embodiment has a lower end surface 42a when viewed from the door thickness direction y, which is an inclined surface whose height in the up-down direction z increases toward the guide groove 3. With this type of guide device 1, as the upper hanging sliding door D moves in the closing direction x1, the second member 23 of the guide pin 2 gradually protrudes in the upward direction z1 along the lower end surface 42a of the holder member 42, and can be guided to a height that can engage with the groove portion 31 of the guide groove 3.

When the protruding height of the second member 23 exceeds the movable range of the second member 23, it is desirable for the first member 22 to protrude in the upward direction z1 as shown in FIG. 4. It is also desirable for the first member 22 to protrude in the upward direction z1 when the first member 22 and the second member 23 are temporarily stuck together due to the ingress of a foreign object or the like. Such a guide pin 2 can function as a guide device 1 for the overhead sliding door D as long as the tolerance for the gap in the vertical direction z between the overhead sliding door D and the floor surface F is large and at least a part of the second member 23 protrudes from the first member 22 even when the first member 22 and the second member 23 are temporarily stuck together.

Figure 5 is a cross-sectional view of the guide device 1 when the upper hanging sliding door D of Figure 3 moves in the closing direction x1. As shown in Figures 3 and 5, the guide device 1 of this embodiment can gradually protrude the second member 23 of the guide pin 2 in the upward direction z1 along the lower end surface 42a of the holder member 42 as the upper hanging sliding door D moves in the closing direction x1, even when the distance between the floor surface F and the upper hanging sliding door D in the vertical direction z is small, and can guide it to a height where it can engage with the groove portion 31 of the guide groove 3. The holder member 42 of this embodiment has a large tolerance for the shape of the second member 23 of the guide pin 2, because the end on the guide groove 3 side can also move in the upward direction z1.

Figure 6 is an exploded perspective view of the guide receiver 4. As shown in Figures 2 to 6, the main body member 41 of the guide receiver 4 of this embodiment has a recess 43 that opens at least in the downward direction z2 when fixed to the underside Da of the upper hanging sliding door D. For example, the recess 43 may penetrate in the vertical direction z in a separate state before being fixed to the underside Da of the upper hanging sliding door D. Such a recess 43 can accommodate the holder member 42 so that it can slide freely in the vertical direction z.

The main body member 41 in this embodiment has a sliding portion 44 that extends in the vertical direction z. Such a sliding portion 44 helps to maintain the position of the holder member 42 when the holder member 42 moves in the vertical direction z.

It is preferable that the sliding portion 44 includes a first sliding portion 44A provided on the side of the guide groove 3 in the opening/closing direction x of the main body member 41, and a second sliding portion 44B provided on the opposite side. Such a sliding portion 44 can stably maintain the position of the holder member 42 whose length in the opening/closing direction x is greater than its width in the door thickness direction y.

As shown in FIG. 2, it is desirable that the length L3 of the first sliding portion 44A is equal to the length L4 of the second sliding portion 44B. Such a sliding portion 44 serves to slide the holder member 42 in parallel in the vertical direction z.

As shown in FIG. 6, the main body member 41 has at least one, and in this embodiment, two, engagement portions 45 that engage with the guide groove 3. Such engagement portions 45 serve to suppress misalignment and rattling with the guide groove 3 and facilitate the connection work between the guide receiver 4 and the guide groove 3.

The main body member 41 is formed, for example, from a resin or a non-magnetic metal. When the main body member 41 is formed from a resin, it is preferable to select from polyacetal, polyamide, etc. The resin of the main body member 41 may contain, for example, reinforced fibers. When the main body member 41 is formed from a non-magnetic metal, it is preferable to select from titanium, aluminum, etc. Such a main body member 41 is not likely to be affected by magnetic forces and can be easily processed into complex shapes.

2 to 6, the holder member 42 of this embodiment includes a holder body 46 that constitutes the lower end surface 42a, and a magnet 47 housed in the holder body 46. It is preferable that the magnet 47 includes a first magnet 47A housed on the guide groove 3 side in the opening/closing direction x of the main body member 41, and a second magnet 47B housed adjacent to the first magnet 47A and away from the guide groove 3.

It is desirable that the second magnet 47B has a stronger magnetic force than the first magnet 47A. The first magnet 47A is, for example, a ferrite magnet. The second magnet 47B is, for example, a neodymium magnet. With such a magnet 47, even if it is far away from the guide pin 2, the strong magnetic force of the second magnet 47B can reliably cause the second member 23 of the guide pin 2 to protrude.

The holder body 46 is formed, for example, from a resin or a non-magnetic metal. When the holder body 46 is formed from a resin, it is preferable to select from polyacetal, polyamide, etc. The resin of the holder body 46 may contain, for example, reinforced fibers. When the holder body 46 is formed from a non-magnetic metal, it is preferable to select from titanium, aluminum, etc. Such a holder body 46 is not likely to be affected by magnetic forces, and it also slides smoothly within the recess 43 of the main body member 41.

The holder body 46 of the holder member 42 in this embodiment has a protrusion 48 that moves within the sliding portion 44 of the body member 41. It is preferable that the protrusion 48 includes a first protrusion 48A provided on the side of the guide groove 3 in the opening/closing direction x of the body member 41, and a second protrusion 48B provided on the opposite side.

The first protrusion 48A moves, for example, within the first sliding portion 44A. The second protrusion 48B moves, for example, within the second sliding portion 44B. Such protrusions 48 help maintain the position of the holder member 42 while reducing friction with the sliding portion 44.

As shown in FIG. 6, it is preferable that the holder body 46 of the holder member 42 has a plurality of protrusions 49 that contact the recesses 43 of the main body member 41. The protrusions 49 extend, for example, in the vertical direction z. Such protrusions 49 reduce the contact area between the holder member 42 and the main body member 41, thereby reducing friction with the main body member 41 while helping to maintain the posture of the holder member 42. Therefore, the holder member 42 of this embodiment can slide smoothly in the vertical direction z inside the main body member 41 with a stable posture.

As shown in Figs. 2 to 6, the holder body 46 has, for example, a holding portion 50 for holding the magnet 47. The holding portion 50 preferably includes a first holding portion 50A for holding the first magnet 47A and a second holding portion 50B for holding the second magnet 47B. In this embodiment, the first holding portion 50A and the second holding portion 50B are each provided in pairs in the door thickness direction y. Such holding portions 50 can reliably hold the magnet 47 even when the holder member 42 moves violently inside the main body member 41.

2 to 5, the main body member 41 of this embodiment has a guide portion 51 formed at the lower end of the recess 43 and positioned below at least a portion of the second member 23 when guiding the second member 23 into the guide groove 3. Such a guide portion 51 can guide the guide pin 2 into the guide groove 3 even when the first member 22 and the second member 23 are temporarily fixed together, as long as at least a portion of the second member 23 protrudes from the first member 22.

It is desirable that the guide portion 51 protrudes at an acute angle from the guide groove 3 side toward the inside of the recess 43 at the lower end of the main body member 41. Such a guide portion 51 can guide the guide pin 2 into the guide groove 3 even if the amount of protrusion of the second member 23 from the first member 22 is small.

The guide section 51 of this embodiment has a push-down section 51a that protrudes in the downward direction z2. Such a push-down section 51a can contact the first member 22 of the guide pin 2 and push the first member 22 down in the downward direction z2. Therefore, the guide device 1 of this embodiment can also push down the second member 23 when the first member 22 and the second member 23 are temporarily fixed to each other. As a result, the guide device 1 of this embodiment can suppress damage caused by contact between the second member 23 and the guide section 51 even when the second member 23 does not protrude sufficiently from the first member 22.

Figure 7 is a side view of the guide device 1 when viewed from the closing direction x1. As shown in Figure 7, the holder member 42 of this embodiment has a lower end surface 42a that is concave in the upward direction z1 when viewed from the opening/closing direction x. When the guide pin 2 is protruded from such a holder member 42, a magnetic force acts to direct the guide pin 2 toward the center of the concave surface, so that the central positions of the holder member 42 and the guide pin 2 in the door thickness direction y can be aligned.

It is desirable that the guide pin 2 has a convex curved surface, with the top surface 2a in contact with the holder member 42 being convex in the upward direction z1. In this embodiment, the radius of curvature R1 of the concave curved surface of the holder member 42 is greater than the radius of curvature R2 of the convex curved surface of the guide pin 2. Such a guide device 1 can efficiently apply a force toward the center of the concave curved surface, and can more reliably align the central positions of the holder member 42 and the guide pin 2 in the door thickness direction y.

The maximum width W2 in the door thickness direction y of the second member 23 of the guide pin 2 is preferably smaller than the width W1 in the door thickness direction y of the holder member 42. Such a guide device 1 has a large tolerance for misalignment in the door thickness direction y between the holder member 42 and the guide pin 2, and can align the holder member 42 and the guide pin 2 even when the overhead sliding door D moves in the opening/closing direction x in a position misaligned in the door thickness direction y.

Figure 8 is an exploded perspective view of the guide pin 2. As shown in Figure 8, the fixing member 21 of the guide pin 2 of this embodiment includes a substantially cylindrical fixing shaft portion 21b having a fixing hole 21a extending in the vertical direction z. The fixing member 21 desirably includes a substantially cylindrical case portion 24 that covers the periphery of the fixing shaft portion 21b. The case portion 24 has, for example, a case hole 24a in which the fixing shaft portion 21b is disposed.

The fixed shaft portion 21b is formed, for example, from a resin or a non-magnetic metal. If the fixed shaft portion 21b is formed from a resin, it is preferable to select from polyacetal, polyamide, etc. The resin of the fixed shaft portion 21b may contain, for example, reinforcing fibers. If the fixed shaft portion 21b is formed from a non-magnetic metal, it is preferable to select from titanium, aluminum, etc.

The case portion 24 is formed, for example, from a resin or a non-magnetic metal. When the case portion 24 is formed from a resin, it is preferable to select from polyacetal, polyamide, etc. The resin of the case portion 24 may contain, for example, reinforced fibers. When the case portion 24 is formed from a non-magnetic metal, it is preferable to select from titanium, aluminum, etc. The case portion 24 may be formed from the same material as the fixed shaft portion 21b, or may be formed from a different material.

When the guide pin 2 is installed inside a floor surface F, for example, the case portion 24 is first placed in an attachment hole formed in the floor surface F. It is then desirable to fit the fixed shaft portion 21b, the first member 22, and the second member 23 into the case hole 24a of the case portion 24 in a pre-assembled state. Such a guide pin 2 can be easily installed on the floor surface F, improving work efficiency.

It is desirable that the case part 24 of the fixed member 21 is fixed to the floor surface F so as to be unable to rotate and move in the vertical direction z. It is desirable that the fixed shaft part 21b is fixed to the case part 24 so as to be unable to rotate and move in the vertical direction z. Such a fixed member 21 prevents the orientation of the guide pin 2 from fluctuating, and can firmly maintain the fixed state even when an external force acts on the guide pin 2. Note that the fixed member 21 may be formed, for example, such that the fixed shaft part 21b and the case part 24 are integrally formed.

The first member 22 of the guide pin 2 in this embodiment has a first shaft portion 22a arranged in the fixing hole 21a of the fixed shaft portion 21b so as to be movable in the vertical direction z, and a first apex 22b formed at the upper end of the first shaft portion 22a. It is preferable that the first shaft portion 22a is arranged in the fixing hole 21a so as not to be rotatable. Such a first member 22 does not rotate even when an external force acts on the guide pin 2, and can move smoothly in the vertical direction z relative to the fixed member 21.

The first member 22 preferably has a first hole 22c for holding the second member 23. In this embodiment, the first hole 22c is provided at a position offset from the center position of the first shaft portion 22a. Even if the mounting hole formed in the floor surface F is misaligned in the door thickness direction y, such a guide pin 2 can be accommodated by adjusting the mounting angle to the fixing hole 21a of the first member 22.

The first member 22 is formed, for example, from a resin or a non-magnetic metal. If the first member 22 is formed from a resin, it is preferable to select from polyacetal, polyamide, etc. The resin of the first member 22 may contain, for example, reinforcing fibers. If the first member 22 is formed from a non-magnetic metal, it is preferable to select from titanium, aluminum, etc.

The second member 23 has a second shaft portion 23a arranged in the first hole 22c of the first member 22 so as to be movable in the vertical direction z, and a second apex portion 23b formed on the upper end of the second shaft portion 23a. It is preferable that the top surface 2a (shown in FIG. 7) of the guide pin 2 that contacts the holder member 42 is formed on the second apex portion 23b.

The second member 23 is formed, for example, from a magnetic material. In this embodiment, the second member 23 is made of iron. For example, the second member 23 is prevented from slipping out of the first hole 22c by a washer 25 engaging with a second groove 23c provided at the lower end of the second shaft portion 23a. Such a second member 23 is suitable for protruding in the upward direction z1 by the magnetic force of the holder member 42.

In the above embodiment, the guide device 1 is provided on the side of the guide groove 3 in the closing direction x1, but it may also be provided on the side of the guide groove 3 in the opening direction x2. Also, at least one guide pin 2 needs to be provided on the floor surface F, and multiple guide pins 2 may be provided.

The above describes in detail a particularly preferred embodiment of the present invention, but the present invention is not limited to the above-described embodiment and can be modified in various ways.

REFERENCE SIGNS LIST 1 Guide device 2 Guide pin 3 Guide groove 31 Groove portion 4 Guide receiver 41 Main body member 42 Holder member

Claims (8)

A guide device used for an overhead sliding door that can move in an opening and closing direction while being spaced apart from a floor surface in the vertical direction,
The door includes a guide pin provided on the floor surface, a guide groove provided on the underside of the upper hung sliding door, and a guide receiver provided adjacent to the guide groove,
The guide groove has a groove portion in which the guide pin can slide in an opening/closing direction,
The guide receiver includes a main body member fixed to the underside of the upper hanging sliding door, and a holder member that guides the guide pin to the groove portion of the guide groove by protruding the guide pin from the floor surface by magnetic force,
The holder member is disposed on the main body member so as to be slidable in the up and down direction.
Guide device. The guide device according to claim 1, wherein the holder member has a lower end surface, at least a portion of which can protrude downward from the main body member. The guide device according to claim 1 or 2, wherein the main body member has a sliding portion extending in the vertical direction. The guide device according to claim 3, wherein the sliding portion includes a first sliding portion provided on the side of the guide groove in the opening/closing direction of the main body member, and a second sliding portion provided on the opposite side. The guide device according to claim 4, wherein the length of the first sliding part is equal to the length of the second sliding part. The guide device according to any one of claims 3 to 5, wherein the holder member has a protrusion that moves within the sliding portion. The guide device according to any one of claims 1 to 6, wherein the lower end surface of the holder member when viewed from the opening/closing direction is a concave curved surface that is concave upward. The guide pin has a top surface that is convex upward,
The guide device according to claim 7 , wherein a radius of curvature of the concave surface of the holder member is greater than a radius of curvature of the convex surface of the guide pin.

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