JP6875876B2 - Opening and closing mechanism - Google Patents

Description

The present invention relates to an opening / closing body opening / closing mechanism capable of opening / closing the opening / closing body by pulling.

An opening / closing mechanism for opening / closing a plurality of opening / closing bodies (for example, a shoji screen, a door, etc.) is known. As an example of such an opening / closing body opening / closing mechanism, Patent Document 1 discloses a sliding door device. This sliding door device includes a traveling body traveling in the left-right direction, a left guide body and a right guide body rotatably attached to the traveling body in the left-right direction, and a left roller and a right guide traveling along the left guide body. A sliding door mounting body having a right roller that runs along the body, a sliding door attached to the sliding door mounting body, and an urging provided between the traveling body and the sliding door mounting body to urge the sliding door mounting body to the rear. Provide means. This sliding door device can obtain the smooth movement of the sliding door mounting body, and can improve the operability of the sliding door.

Japanese Unexamined Patent Publication No. 2010-101057

However, in the sliding door device described in Patent Document 1, the front guide rail and the rear guide rail are provided apart from each other in a direction parallel to the direction in which the sliding door is separated from the opening. Therefore, the traveling body that travels by engaging with both guide rails receives a rotational moment due to the weight of the sliding door, so that a load is applied in the width direction of the guide rails. As a result, it is difficult to travel in a portion where the extending direction of the guide rail, such as an arc-shaped guide, is changed, and smooth movement is difficult.

Therefore, an object of the present invention is to provide an opening / closing body opening / closing mechanism capable of easily and smoothly moving the opening / closing body when the opening / closing body moves.

The opening / closing mechanism of the present invention
An opening member having a first opening and a second opening,
A first opening / closing body that can move between an open position where the first opening opens and a closed position where the first opening is closed.
A second opening / closing body that can move between an open position where the second opening opens and a closed position where the second opening is closed.
A first support member attached to the first opening / closing body and supporting the first opening / closing body, and
A second support member attached to the second opening / closing body and supporting the second opening / closing body, and
The first opening / closing body and the second opening / closing body are guided back and forth between the open position and the closed position, respectively, via the first support member and the second support member provided in the opening member. An opening / closing body opening / closing mechanism provided with a guide member for
The guide member has a first guide member and a second guide member extending from the first opening side to the second opening side of the opening member, respectively.
The first support member has a first connecting portion that is movably connected to the first guide member and a second connecting portion that is movably connected to the second guide member.
The second support member has a third connecting portion that is movably connected to the first guide member and a fourth connecting portion that is movably connected to the second guide member.
The first guide member is
A first closed position guide portion that guides the first connection portion so that the first opening / closing body moves to a closed position that closes the first opening.
A second closed position guide portion that guides the third connection portion so that the second opening / closing body moves to a closed position that closes the second opening.
It has a first guide member intermediate portion that is connected to the first closed position guide portion and the second closed position guide portion and is movable between the first connection portion and the third connection portion.
The first closed position guide portion, the second closed position guide portion, and the first guide member intermediate portion are configured to extend on substantially the same plane.
The second guide member is
A third closed position guide that guides the second connection so that the first opening / closing body moves to a closed position that closes the first opening.
A fourth closed position guide portion that guides the fourth connection portion so that the second opening / closing body moves to a closed position that closes the second opening.
It has a second guide member intermediate portion that is connected to the third closed position guide portion and the fourth closed position guide portion and is movable between the second connection portion and the fourth connection portion.
The third closed position guide portion, the fourth closed position guide portion, and the second guide member intermediate portion are configured to extend on substantially the same plane.
The first guide member intermediate portion and the second guide member intermediate portion are arranged in parallel, and one of the first guide member intermediate portion and the second guide member intermediate portion is connected from the respective connection portions. It is arranged so as to have an overlap region in which the other guide member intermediate portion is located on the side in the direction of receiving the load by the first opening / closing body and the second opening / closing body.
The first connection portion, the second connection portion, the third connection portion, and the fourth connection portion have rolling elements on the side where a load is applied to the guide member.
The first guide member is a plane in which the first closed position guide portion, the second closed position guide portion, and the first guide member intermediate portion of the first guide member extend from both ends of the first guide member intermediate portion. The shape is bent or curved on the same plane, and the end portion of the first closed position guide portion and the end portion of the second closed position guide portion are lower than the intermediate portion of the first guide member. Arranged at an angle so that
The second guide member is a plane in which the third closed position guide portion, the fourth closed position guide portion, and the second guide member intermediate portion of the second guide member extend from both ends of the second guide member intermediate portion. The shape is bent or curved on the same plane, and the end portion of the third closed position guide portion and the end portion of the fourth closed position guide portion are lower than the intermediate portion of the second guide member. Arranged at an angle so that
The position of the first support member and the second support member is such that when one of the first opening / closing body and the second opening / closing body is located at a closed position, the other can be pulled apart. It is attached to.

According to the present invention, it is possible to provide an opening / closing body opening / closing mechanism capable of easily and smoothly moving when the opening / closing body moves.

It is a perspective view which shows the opening / closing body opening / closing mechanism of embodiment of this invention. It is a schematic top view of the opening / closing body opening / closing mechanism of FIG. It is a schematic top view which moved the 1st opening / closing body from the state of FIG. 2 to an open position. It is a perspective view which shows the state which the 2nd opening / closing body of the opening / closing body opening / closing mechanism of FIG. 1 is in an open position. It is a schematic top view which moved the 2nd opening / closing body from the state of FIG. 2 to an open position. It is a right side view of the guide member in the opening / closing body opening / closing mechanism of FIG. FIG. 5 is a schematic view of a connection portion used in the opening / closing mechanism of FIG. 1 as viewed in the moving direction of the opening / closing body. It is the schematic which looked at the connection part of FIG. 6 from the front side. It is a top view of the connection part of FIG. It is a partial cross-sectional view which shows the main part structure of the connection part shown in FIG. It is a partial cross-sectional view which shows the main part structure of the modification of the connection part. FIG. 5 is a schematic view showing a state in which the first connection portion and the second connection portion are located on the first closed position guide portion and the third closed position guide portion having an inclined rolling surface of the opening / closing body opening / closing mechanism of FIG. .. It is a schematic bottom view of the opening / closing body opening / closing mechanism of FIG.

Hereinafter, the opening / closing body opening / closing mechanism according to the embodiment of the present invention will be described with reference to the drawings.
<Overall configuration of opening / closing mechanism M>
As shown in FIG. 1, the opening / closing mechanism M of the present embodiment includes an opening member 1 having a first opening 11 and a second opening 12, a first opening / closing body D1, and a second opening / closing body D2. A first support member 21, a second support member 22, a guide member 3, and a drive unit 4 are provided.
The opening / closing body opening / closing mechanism M moves the first opening / closing body D1 and the second opening / closing body D2 (hereinafter, may be simply collectively referred to as the opening / closing body D) by pulling the first opening / closing body D1 and the second opening / closing body D2. It is a mechanism that opens and closes 12. The use of the opening / closing mechanism M is not particularly limited, but it can be applied to, for example, a door mechanism of a structure for accommodating an object such as a commercial refrigerator / freezer. Further, the opening / closing body D may be moved manually, but in the present embodiment, the connecting portion having the rolling element is moved along the guide member by the drive unit 4 (drive mechanism) using the control cable. Then, the opening / closing body D is electrically opened / closed.

<Aperture member 1>
The opening member 1 is a member having an opening, and is provided with a first opening 11 and a second opening 12. The first opening 11 communicates one side and the other side with each other through the opening portion, and in the present embodiment, the accommodating portion of the opening member 1 and the outside of the opening member 1 communicate with each other. In the present embodiment, the first opening 11 constitutes the right opening of the opening member 1.
The second opening 12 communicates one side and the other side with each other through the opening portion, and in the present embodiment, the accommodating portion of the opening member 1 and the outside of the opening member 1 communicate with each other. In the present embodiment, the second opening 12 constitutes the left opening of the opening member 1.
The first opening 11 and the second opening 12 of the opening member 1 are opened and closed by the first opening / closing body D1 and the second opening / closing body D2, respectively.

In the present embodiment, the opening member 1 is a housing having an accommodating portion inside, as shown in FIG. More specifically, the opening member 1 is a substantially rectangular parallelepiped housing having a front surface, a back surface, an upper surface surface, a lower surface surface, and a pair of side surfaces, and has a first opening portion 11 and a second opening portion 12 on the front surface side. ing. In the present specification, the direction in which the opening / closing body D moves to open / close is referred to as the moving direction X of the opening / closing body D, the vertical direction is referred to as the vertical direction Y, and the moving direction X and the vertical direction Y are both. The vertical direction is called the front-back direction Z (see FIG. 2). The opening member 1 is not limited to the shape shown in the drawing, and may be a housing having a shape other than a substantially rectangular parallelepiped shape, or a frame body having a first opening 11 and a second opening 12. ..
In the present embodiment, as shown in FIGS. 1 and 2, the first opening 11 and the second opening 12 are arranged adjacent to each other in the left-right direction via the partition portion 13. The first opening 11 and the second opening 12 each have a substantially rectangular shape in the present embodiment, but the shapes of the first opening 11 and the second opening 12 are opened and closed by the opening / closing body D. If possible, there is no particular limitation.

<First opening / closing body D1 and second opening / closing body D2>
In the closed body opening / closing mechanism M, the first opening / closing body D1 can move between the open position where the first opening 11 opens and the closed position where the first opening 11 is closed, and the second opening / closing body D2 , It is possible to move between the open position where the second opening 12 opens and the closed position where the second opening 12 is closed.
The first opening / closing body D1 and the second opening / closing body D2 move between the open position (see FIGS. 3 and 5) and the closed position (see FIG. 2), respectively, as shown in FIGS. Then, it is configured to move by pulling.

Here, the open position of the first opening / closing body D1 is a position where the first opening 11 opens, and is a position where the inside and the outside of the opening member 1 communicate with each other through the first opening 11. When the first opening / closing body D1 moves to the open position, the first opening 11 opens, and the article housed in the opening member 1 can be taken out. The opening position of the second opening / closing body D2 is a position where the second opening 12 opens, and a position where the inside and the outside of the opening member 1 communicate with each other via the second opening 12. When the second opening / closing body D2 moves to the open position, the second opening 12 opens, and the article housed in the opening member 1 can be taken out.
In the present embodiment, when the first opening / closing body D1 and the second opening / closing body D2 are in the closed position, the first opening / closing body D1 moves to the second opening 12 side (see FIG. 3), whereby the first opening is opened. The second opening 12 is opened by opening the portion 11 and moving the second opening / closing body D2 toward the first opening 11 (see FIGS. 4 and 5). The open position is not limited to the position where the target opening is completely opened, and may be a position where a part of the target opening is opened. Further, the closed position is not limited to the position where the target opening is completely closed, and may be a position where a part of the target opening is closed. When each of the first opening / closing body D1 and the second opening / closing body D2 is in the open position, the openings of the first opening 11 and the second opening 12 which are opened by each of them are larger than when they are in the closed position. The area is large.
The closing position of the first opening / closing body D1 is a position where the first opening 11 is closed, and a position where the first opening 11 is closed to block the inside and the outside of the opening member 1. When the first opening / closing body D1 moves to the closed position, the first opening 11 is closed, and the space inside the opening member 1 and the outside are blocked. The closing position of the second opening / closing body D2 is a position where the second opening 12 is closed, and a position where the second opening 12 is closed to block the inside and the outside of the opening member 1. When the second opening / closing body D2 moves to the closed position, the second opening 12 closes, and the space inside the opening member 1 and the outside are blocked. As a result, if the opening member 1 is a structure such as a commercial refrigerator / freezer, the cold air inside the opening member 1 can be retained. When each of the opening / closing body D1 and the second opening / closing body D2 is in the closed position, the closed area of the first opening 11 and the second opening 12 opened by each is larger than that when each is in the closed position. large.
In the present embodiment, the first opening / closing body D1 and the second opening / closing body D2 are left and right doors arranged on the front side of the opening member 1, but the opening can be opened by moving to the open position or the closed position. It may be a closing door, or it may be a door or a door arranged one above the other.

As shown in FIGS. 1 and 2, the surfaces of the first opening / closing body D1 and the second opening / closing body D2 are substantially the same when both the first opening / closing body D1 and the second opening / closing body D2 are in the closed positions. They are arranged side by side with a gap so that they are on a flat surface. When one is located in the closed position and the other moves to the open position, as shown in FIGS. 3 and 5, in addition to moving in the moving direction X, in the front-rear direction Z of one surface. Also move. In the present embodiment, the first opening / closing body D1 and the second opening / closing body D2 have a substantially rectangular plate shape, respectively, as shown in FIG. 1, but the first opening / closing body D1 and the second opening / closing body D1 and the second opening / closing body are respectively. The shape of D2 is not particularly limited as long as the first opening 11 and the second opening 12 can be opened and closed, respectively. In the present embodiment, by providing a puller for manual opening / closing on the front side of the first opening / closing body D1 and the second opening / closing body D2, opening / closing of the first opening / closing body D1 and the second opening / closing body D2 is facilitated. May be good.
The first opening / closing body D1 and the second opening / closing body D2 are movably connected to the guide member 3 via the first support member 21 and the second support member 22. Details of the guide member 3 will be described later.

<First support member 21 and second support member 22>
As shown in FIGS. 1 to 7, the first support member 21 is attached to the first opening / closing body D1 to support the first opening / closing body D1, and the second support member 22 is attached to the second opening / closing body D2. , Supports the second opening / closing body D2.
The first support member 21 and the second support member 22 are positioned so that when one of the first opening / closing body D1 and the second opening / closing body D2 is located in the closed position, the other can be moved by pulling. It is attached to.

The first support member 21 connects the first opening / closing body D1 to both the first and second guide members 31 and 32, as shown in FIGS. 1 and 2.
The first support member 21 is guided by the first and second guide members 31 and 32 when the first opening / closing body D1 moves between the open position and the closed position.
As shown in FIGS. 1 and 2, the first support member 21 has a first connecting portion 21a that is movably connected to the first guide member 31 and a second that is movably connected to the second guide member 32. It has two connecting portions 21b. The details of the first connection portion 21a and the second connection portion 21b will be described later.
Further, the first support member 21 has a first attachment portion 21c attached to the first opening / closing body D1, and is attached to the first opening / closing body D1 via the first attachment portion 21c. Specifically, the first connection portion 21a and the second connection portion 21b are attached to the first opening / closing body D1 via the first attachment portion 21c. In this embodiment, the first mounting portion 21c is provided in parallel with the front surface or the back surface of the first opening / closing body D1 so as not to interfere with the relative movement with the second opening / closing body D2 in the movement of the opening / closing body, and the first opening / closing portion 21c is provided. It is composed of a long side member along the lateral direction which is the moving direction of the body D1, and the first opening / closing body D1 is attached to the first support member 21 in a more stable state. The first mounting portion 21c can be mounted on the first opening / closing body D1 by a known fixing means such as a screw.
As a result, when the first opening / closing body D1 is opened / closed, the first opening / closing body D1 and the first support member 21 move together between the open position and the closed position.
Further, in the present embodiment, the first support member 21 includes a first extending portion 21e extending between the first mounting portion 21c and the first connecting portion 21a, and the first mounting portion 21c and the second connecting portion 21b. It is provided with a second extending portion 21f extending between the two. The first connecting portion 21a is swingably connected to the first extending portion 21e, and the second connecting portion 21b is swingably connected to the second extending portion 21f. A detailed description of the first extending portion 21e and the second extending portion 21f will be described later together with the first connecting portion 21a and the second connecting portion 21b.

The second support member 22 connects the second opening / closing body D2 to both the first and second guide members 31 and 32, as shown in FIGS. 1 and 2.
The second support member 22 is guided by the first and second guide members 31 and 32 when the second opening / closing body D2 moves between the open position and the closed position.
As shown in FIGS. 1 and 2, the second support member 22 has a third connecting portion 22a that is movably connected to the first guide member 31 and a second that is movably connected to the second guide member 32. It has 4 connecting portions 22b. The third connection portion 22a and the fourth connection portion 22b have substantially the same configurations as the first connection portion 21a and the second connection portion 21b of the first support member 21, respectively. For details, refer to the first connection portion 21a. Will be described later together with the second connection portion 21b.
Further, the second support member 22 has a second attachment portion 22c attached to the second opening / closing body D2, and is attached to the second opening / closing body D2 via the second attachment portion 22c. Specifically, the third connection portion 22a and the fourth connection portion 22b are attached to the second opening / closing body D2 via the second attachment portion 22c. In the present embodiment, the second mounting portion 22c is provided parallel to the front surface or the back surface of the second opening / closing body D2 so as not to interfere with the relative movement of the opening / closing body D1 in the movement of the opening / closing body. It is composed of a long side member along the lateral direction which is the moving direction of the opening / closing body D2, and the second opening / closing body D2 is attached to the second support member 22 in a more stable state. The second attachment portion 22c can be attached to the second opening / closing body D2 by a known fixing means such as a screw.
As a result, when the second opening / closing body D2 is opened / closed, the second opening / closing body D2 and the second support member 22 move together between the open position and the closed position.
Further, in the present embodiment, as shown in FIGS. 1 and 2, the second support member 22 has a third extending portion 22e extending between the second mounting portion 22c and the third connecting portion 22a, and a second support member 22. It has a fourth extending portion 22f extending between the two mounting portions 22c and the fourth connecting portion 22b. The third connecting portion 22a is swingably connected to the third extending portion 22e, and the fourth connecting portion 22b is swingably connected to the fourth extending portion 22f. A detailed description of the third extending portion 22e and the fourth extending portion 22f will be described later together with the third connecting portion 22a and the second connecting portion 22b.

<Guide member 3>
As shown in FIGS. 1 to 5, the guide member 3 is provided in the opening member 1, and the first opening / closing body D1 and the second opening / closing body D2 are provided via the first support member 21 and the second support member 22. To a predetermined position. The guide member 3 smoothly guides the first opening / closing body D1 and the second opening / closing body D2 by the smooth relative movement of the first support member 21 and the second support member 22. The guide member 3 guides the first opening / closing body D1 and the second opening / closing body D2 back and forth between the open position and the closed position, respectively, via the first support member 21 and the second support member 22.
The guide member 3 is movably connected to the first support member 21 and the second support member 22. In the present embodiment, the guide member 3 is connected to the first support member 21 and the second support member 22 via the first connection portion 21a, the second connection portion 21b, the third connection portion 22a, and the fourth connection portion 22b. , The first opening 11 and the second opening 12 are connected so as to be relatively movable along the line-up direction.
The guide member 3 has a first guide member 31 and a second guide member 32 extending from the first opening 11 side to the second opening 12 side of the opening member 1, respectively. The first opening / closing body D1 and the second opening / closing body D2 are guided by the first guide member 31 and the second guide member 32 in the width direction (horizontal direction in the drawing) of the opening member 1 at a predetermined height. When moving from the moving state to the closed position located in the depth direction (back direction in the drawing) of the opening member 1, the movement is performed while descending from the predetermined height, and the height is higher than the predetermined height. Will reach a low closed position.

As shown in FIGS. 1 to 5, the first guide member 31 guides the first connecting portion 21a so that the first opening / closing body D1 moves to the closed position for closing the first opening 11. The guide portion 31a, the second closed position guide portion 31b that guides the third connection portion 22a so that the second opening / closing body D2 moves to the closed position that closes the second opening 12, and the first closed position guide portion 31a. It has a first guide member intermediate portion 31c that is connected to the second closed position guide portion 31b and is movable between the first connection portion 21a and the third connection portion 22a.

In the present embodiment, the first guide member 31 is an elongated rail-shaped member extending along the moving direction X of the opening / closing body D, as shown in FIGS. 1 and 2.
The first guide member intermediate portion 31c is arranged so as to extend linearly substantially parallel to the moving direction X of the opening / closing body D, and the first and first guide member intermediate portions 31c are arranged on both ends in the longitudinal direction of the first guide member intermediate portion 31c. The second closed position guide portions 31a and 31b are provided, respectively.
The first closed position guide portion 31a, the second closed position guide portion 31b, and the first guide member intermediate portion 31c are configured to extend on substantially the same plane.
In the present embodiment, the first guide member 31 has a shape in which a linear rail member is two-dimensionally bent or curved, and the first closed position guide portion is formed from both ends of the first guide member intermediate portion 31c. The 31a and the second closed position guide portion 31b have a shape that is bent or curved on the same plane with respect to the extending direction of the first guide member intermediate portion 31c of the first guide member.
Further, the first and second closed position guide portions 31a and 31b are separated from the opening / closing body D as they proceed from both end sides of the first guide member intermediate portion 31c in the longitudinal direction to both end portions of the first guide member 31. Extends to. As shown in FIGS. 1, 2 and 6, in the first guide member 31, the first and second closed position guide portions 31a and 31b are on the front side of the first guide member 31, that is, the opening side of the opening 11 ( From the positive direction of the Z-axis shown in FIG. 1 and the like to the back side of the first guide member 31, that is, the back side of the opening (the negative direction of the Z-axis shown in FIG. 1 and the like), the downward inclination is formed. , Arranged in the opening member 1.

The first guide member 31 is provided in the direction in which the load is applied (lower side in FIG. 6) so that the bottom surface 311 on which the rolling element, which will be described later, rolls, and the first connecting portion 21a and the third connecting portion 22a do not come off. It has a side surface 312 that engages with. The bottom surface 311 and the side surface 312 extend in the longitudinal direction of the first guide member 31, but the same applies to the second guide member 32.
In the present embodiment, the first guide member 31 is configured to have a substantially C-shaped cross section together with the second guide member 32, which will be described later, as shown in FIGS. 6 and 7.
Specifically, the first guide member 31 is configured to have a substantially C-shaped cross section with the opening / closing body D side open, and the back surface 313 extends upward from the bottom surface 311 which is a rolling surface provided on the lower side. A top surface 314 is provided parallel to the bottom surface 311 at the upper end of the back surface 313. The side surface 312 extends downward in the vertical direction from the front side of the top surface 314, and the thrust roller TR described later is rotatably engaged with the top surface 314. In the present embodiment, the back surface 313 and the front side surface 312 are provided substantially in parallel. Here, the first guide member 31 and the second guide member 32 are attached to the opening member 1 so that the back surface 313, 323 and the front side surface 312, 322 each have an angle with respect to the vertical direction. Since the back surface 313, 323 and the front side surface 312, 322 each have an angle with respect to the vertical direction, and the rotation shaft portion 206 described later extends in the vertical direction, the thrust roller TR is the back surface 313, 323 or the front side surface. Since the state of being in contact with 312 and 222 can be maintained, the first guide member 31 and the second guide member 32 can stably guide the first opening / closing body D1 and the second opening / closing body D2.

As shown in FIGS. 1 to 5, the second guide member 32 guides the second connecting portion 21b so that the first opening / closing body D1 moves to the closed position for closing the first opening 11. The guide portion 32a, the fourth closed position guide portion 32b that guides the fourth connection portion 22b so that the second opening / closing body D2 moves to the closed position that closes the second opening 12, and the third closed position guide portion 32a. It has a second guide member intermediate portion 32c that is connected to the fourth closed position guide portion 32b and allows the second connection portion 21b and the fourth connection portion 22b to move. Since the second guide member 32 and each part thereof basically have the same configuration as the first guide member 31 and each part thereof, a specific description thereof will be omitted.

In particular, the third closed position guide portion 32a, the fourth closed position guide portion 32b, and the second guide member intermediate portion 32c are configured to extend on substantially the same plane. In the present embodiment, the second guide member 32 has a shape in which a linear rail member is secondarily bent or curved like the first guide member 31, and the second guide member intermediate portion 32c. The third closed position guide portion 32a and the fourth closed position guide portion 32b are bent or curved on the same plane with respect to the extending direction of the second guide member intermediate portion 32c of the second guide member. is there.

In the second guide member 32, similarly to the first guide member 31, the end portion of the third closed position guide portion 32a and the end portion of the fourth closed position guide portion 32b are lower than the second guide member intermediate portion 32c. It is arranged so as to be inclined.

In the first guide member 31, the first closed position guide portion 31a, the second closed position guide portion 31b, and the first guide member intermediate portion 31c are formed without being subjected to two-dimensional bending or diameter expansion processing. Therefore, the connecting portions 21a, 21b, 22a, 22b, and eventually the opening / closing body D can be guided.
Similarly, in the second guide member 32, the third closed position guide portion 32a, the fourth closed position guide portion 32b, and the second guide member intermediate portion 32c are subjected to three-dimensional bending processing or diameter expansion processing. It is possible to guide the connecting portions 21a, 21b, 22a, 22b, and eventually the opening / closing body D.

The first guide member intermediate portion 31c and the second guide member intermediate portion 32c are arranged in parallel as shown in FIGS. 1 to 6, and the first guide member intermediate portion 31c and the second guide member intermediate portion 32c are arranged in parallel. One of the above (in the present embodiment, the first guide member intermediate portion 31c) is on the side in the direction of receiving the load from the connecting portions 21a, 21b, 22a, 22b by the first opening / closing body D1 and the second opening / closing body D2. The guide member intermediate portion (in the present embodiment, the second guide member intermediate portion 32c) is arranged so as to have an overlap region OL (see FIG. 2).

As shown in FIG. 2, the overlap region OL is along the longitudinal direction of the first and second guide member intermediate portions 31c and 32c on the side in the direction in which the opening / closing body D receives the load (that is, in the vertical direction Y). It is a region of the first and second guide member intermediate portions 31c and 32c arranged so as to overlap with each other (lower side).
In the present embodiment, as shown in FIGS. 1 to 5, the first connecting portion 21a and the second connecting portion 21b are attached to the upper side of the first opening / closing body D1, and the third connecting portion 22a and the fourth connecting portion 22b are attached. Is attached to the upper side of the second opening / closing body D2.
Further, the first and second guide members 31 and 32 are arranged so as to be overlapped in the vertical direction Y and in a straight line along the moving direction X of the opening / closing body D (see FIGS. 1 to 6). As shown in FIG. 2, the overlap region OL includes the open position side of the second opening / closing body D2 of the first guide member 31 and the open position side of the first opening / closing body D1 of the second guide member 32. It overlaps and is configured in the central portion in the longitudinal direction of the whole where the first guide member 31 and the second guide member 32 are combined.

By arranging the first and second guide members 31 and 32 so as to have such an overlap region OL, for example, the first and second guide members 31 and 32 are placed in the front-rear direction Z of the opening member 1. The space occupied by the first and second guide members 31 and 32 in the front-rear direction Z can be reduced as compared with the case where the first and second guide members 31 and 32 are arranged horizontally by shifting them in the vertical direction in FIG. It is possible to suppress the generation of a large rotational moment centered on the first to fourth connecting portions 21a, 21b, 22a, 22b, which causes a frictional force that hinders the movement between the guide member and the guide member. Therefore, for example, when another member (not shown) is installed on the upper surface of the opening member 1, a wide installation space can be secured. In the present embodiment, the first guide member 31 is arranged on the upper side and the second guide member 32 is arranged on the lower side, but the vertical relationship between the first guide member 31 and the second guide member 32 is reversed. The first guide member 31 and the second guide member 32 may be arranged.

<First to fourth connection portions 21a, 21b, 22a, 22b>
The first connecting portion 21a, the second connecting portion 21b, the third connecting portion 22a, and the fourth connecting portion 22b are guided by the first guide member 31 and the second guide member 32. 7 to 10 show the first guide member 31 and the first connection portion 21a guided by the first guide member 31, but the second connection portion 21b, the third connection portion 22a, and the fourth connection portion 22b are shown. Has a substantially similar configuration. Therefore, with reference to FIGS. 7 to 10, the configurations of the second connection portion 21b, the third connection portion 22a, and the fourth connection portion 22b will be described together with the first connection portion 21a.
The first connecting portion 21a, the second connecting portion 21b, the third connecting portion 22a, and the fourth connecting portion 22b are referred to as the first rolling elements R1, R2, R3, and R4 (hereinafter, simply collectively referred to as rolling elements R). ), A second rolling element RB, and a third rolling element TR.

The rolling element R is a radial roller that receives a load in the vertical direction while the first connecting portion 21a, the second connecting portion 21b, the third connecting portion 22a, and the fourth connecting portion 22b are stopped and moving.
The rolling element R is arranged on the side where the load is applied to the guide member 3 in the first connecting portion 21a, the second connecting portion 21b, the third connecting portion 22a, and the fourth connecting portion 22b.
As shown in FIGS. 7 to 9 and 12, the rolling elements R are arranged on the bottom surfaces 311, 321 provided on the lower side of the first and second guide members 31, 32.
In the rolling element R, when the first and second opening / closing bodies D1 and D2 move along the first and second guide members 31 and 32, the bottom surfaces 311, 321 of the first and second guide members 31 and 32 Roll along.

The second rolling element RB (hereinafter, may be simply referred to as a rolling element RB) is provided on the opposite side of the first rolling element R in the vertical direction and receives a load in the vertical direction. The rolling element RB is a ball member in the present embodiment. The rolling element RB is arranged below the top surface 314 provided on the upper side of the first and second guide members 31 and 32, comes into contact with the top surfaces 314 and 324, and slides along the top surfaces 314 and 324. To do. The rolling element RB rolls under a load particularly from above.
In the present embodiment, the rolling element RB is arranged on the rotating shaft portion 206 to which the two thrust rollers TR are rotatably attached. In the present embodiment, the rolling element RB is a ball member arranged at the upper end of each of the rotating shaft portions 206, as shown in FIG. The rolling element RB as a ball member is rotatably arranged in the concave ball holding portion 208 provided at the upper end of the rotating shaft portion 206. The ball member as the rolling element RB can rotate in all directions around the center point of the rolling element RB with a part of the rolling element RB formed by the ball member protruding upward in the ball holding portion 204. It is attached. The rolling element RB does not have to be arranged coaxially with the axis of the rolling element TR.

In the present embodiment, in the rolling element RB, the first and second guide members 31 and 32 having the top surface 314 have their respective ends inclined downward from the front side to the rear side of the opening member 1. Even if the top surfaces 314 and 324 are tilted with respect to the horizontal plane, the friction between the top surfaces 314 and the top surface 314 is suppressed while receiving the load due to the tilt. When the 1st to 4th connecting portions 21a, 21b, 22a, 22b move, they slide smoothly.

The third rolling element TR (hereinafter, may be simply referred to as a rolling element TR) applies a load in the horizontal direction at the first connecting portion 21a, the second connecting portion 21b, the third connecting portion 22a, and the fourth connecting portion 22b. It is a thrust roller TR to receive. The rolling element TR abuts on the side surfaces 312 and 322 of the first and second guide members 31 and 32, and rolls on the side surfaces 312 and 322. The rolling elements TR are arranged between the side surfaces 312 and 322 of the first and second guide members 31 and 32 and the back surfaces 313 and 323.

More specifically, as shown in FIGS. 7 to 10, the first connecting portion 21a, the second connecting portion 21b, the third connecting portion 22a, and the fourth connecting portion 22b are the rolling element R and the rolling element TR, respectively. And in addition to the rolling element RB, it has a connection base B and a ball support 208.
The connection base B rotatably supports the rolling elements R and the rolling elements TR, and rotatably supports the rolling elements RB via the ball support portion 2208.

A rolling element R is rotatably attached to the connection base B around a horizontal axis, and two rolling elements TR are rotatably attached around a vertical axis.

The connection base B is perpendicular to the first to fourth extending portions 21e, 21f, 22e, 22f (indicated by 21e in FIGS. 7, 9 and 10) as shown in FIGS. 7 to 10. It is oscillatingly connected around the axis. The bottom surface 311 on which the rolling elements R, RB, and TR roll (the bottom surface 321 of the second guide member is also shown in FIG. 12) and the top surface 314 (the top surface 324 of the second guide member is also shown in FIG. 12). And the side surface 312 (in FIG. 12, the side surface 322 of the second guide member is also shown) are the first closed position guide portion 31a, the second closed position guide portion 31b, the third closed position guide portion 32a, and the fourth closed position guide portion. Each of 32b has.
Further, in the present embodiment, the first connection portion 21a, the second connection portion 21b, the third connection portion 22a, and the fourth connection portion 22b do not have to have the rolling element RB. For example, as shown in the connecting portion 21aA shown in FIG. 11, in the configuration of the first connecting portion 21, there is no rolling element RB, that is, the upper end of the rotating shaft portion 206A of the rolling element TR attached to the connection base B. The ball holding portion 208 may not be provided in the vehicle, and the rolling element RB may not be arranged.

Further, the first to fourth connecting portions 21a, 21b, 22a and 22b move from the first and second guide member intermediate portions 31c and 32c to the first to fourth closed position guide portions 31a, 31b, 32a and 32b. At that time, it swings with respect to the first to fourth extending portions 21e, 21f, 22e, 22f. For example, the connection base B of the first to fourth connecting portions 21a, 21b, 22a, 22b swings at one end of the corresponding first to fourth extending portions 21e, 21f, 22e, 22f via a shaft portion. Can be installed. Further, the first to fourth connecting portions 21a, 21b, 22a, 22b and the corresponding first to fourth extending portions 21e, 21f, 22e, 22f are universally jointly connected to the plurality of axes. It may be oscillatingly connected to.
As a result, the rolling elements R (R1 to R4) of the first to fourth connecting portions 21a, 21b, 22a, 22b change their directions along the first to fourth closed position guide portions 31a, 31b, 32a, 32b. , Move smoothly.

In the first to fourth closed position guide portions 31a, 31b, 32a, 32b, as shown in FIGS. 1, 6 and 12, the bottom surfaces 311, 321 are the first and second guide members 31, 32, respectively. It has a downward slope toward the end of the guide. In the present embodiment, the first guide members 31 and 32 themselves are tilted and attached to the opening member 1, so that the bottom surfaces 311, 321 of the first and second guide members 31 and 32 are attached to the guide members 31, 32, respectively. It has a slope that goes down toward the end of the. In this case, when the rolling element R rolls to the closed position of the opening / closing body D, the rolling element R easily rolls due to gravity, and the opening / closing body D can be easily guided to the closed position. Further, when the opening / closing body D is in the closed position, the opening / closing body D is in a state of being pressed against the opening by its own weight. Since it is also necessary to climb the position guide portions 31a, 31b, 32a, and 32b to move, the closed state of the opening / closing body D can be maintained.

As described above, the first to fourth connecting portions 21a, 21b, 22a, 22b have a rolling element R on the side where a load is applied to the first and second guide members 31, 32. Therefore, the load of the opening / closing body D supported by the rolling element R is applied to the first and second guide members 31 and 32 in the same direction from the rolling element R, that is, downward.
The first and second guide members 31 and 32 continue to receive a downward load by the rolling element R between the closed position and the open position of the first and second opening / closing bodies D1 and D2. As a result, it is possible to prevent the direction in which the load is applied from the rolling element R to the first and second guide members 31 and 32 to vary. Therefore, rattling in the first and second guide members 31 and 32 of the first to fourth connecting portions 21a, 21b, 22a and 22b caused by the variation in the direction in which the load is applied and the first to fourth connecting portions are caused. Friction between 21a, 21b, 22a, 22b and the first and second guide members 31, 32 can be suppressed. Therefore, the first opening / closing body D1 and the second opening / closing body D2 can be smoothly moved.

Further, as shown in FIGS. 1, 4 and 6, by overlapping the first and second guide members 31 and 32 in the vertical direction, the opening / closing body D rolls when it is moved. The two rolling elements R1 and R2 (R3, R4) have the same separation distance from the opening / closing body D1 (D2) in the front-rear direction Z over the moving direction of the opening / closing body D1 (D2). Therefore, the influence of the moment applied to the opening / closing body D due to the weight of the opening / closing body D is almost the same between the rolling elements R1 and R2 (R3, R4). As a result, when the opening / closing body D is opened / closed, the two rolling elements R can be smoothly moved along the first and second guide members 31, 32.

Further, in the present embodiment, as shown in FIGS. 1 to 5, when the first opening / closing body D1 is positioned at the closed position, the first mounting portion 21c of the first support member 21 is connected to the first connecting portion 21a. , Has a first extending portion 21e extending in a direction away from the first guide member 31.
The first extending portion 21e extends between the first connecting portion 21a and the first mounting portion 21c. The first extending portion 21e extends in a direction away from the first guide member 31 from the first connecting portion 21a when the first opening / closing body D1 is located at the closed position. In the present embodiment, as shown in FIG. 1, the directions away from the first guide member 31 are the moving direction X of the first opening / closing body D1, the vertical direction Y which is the direction in which the load is applied, the moving direction X, and the vertical direction. It includes a front-back direction Z perpendicular to Y. Specifically, as shown in FIGS. 1 and 2, the first extending portion 21e extends from the first connecting portion 21a toward the first opening / closing body D1 side in the front-rear direction Z, and then first opens / closes. It is configured to extend to the closed position side (right side in FIG. 2) in the moving direction X of the body D1 and extend downward in the vertical direction Y to connect to the first mounting portion 21c.

Further, in the present embodiment, the first support member 21 has a second extending portion 21f as shown in FIGS. 1 and 2. The second extending portion 21f extends between the second connecting portion 21b and the first mounting portion 21c. The second extending portion 21f extends from the second connecting portion 21b toward the first opening / closing body D1 side in the front-rear direction Z, and then extends toward the opening position side in the moving direction X of the first opening / closing body D1. The first extending portion 21e and the second extending portion 21f extend from the first mounting portion 21c to both sides of the first opening / closing body D1 in the moving direction X, respectively. Therefore, the first mounting portion 21c is arranged in the central region of the first extending portion 21e and the second extending portion 21f in the moving direction X of the first opening / closing body D1.

Further, in the present embodiment, the second support member 22 has a third extending portion 22e as shown in FIGS. 1 and 2. The third extending portion 22e extends between the third connecting portion 22a and the second mounting portion 22c. The third extending portion 22e extends from the third connecting portion 22a toward the second opening / closing body D2 side in the front-rear direction Z, and then extends toward the opening position side in the moving direction X of the second opening / closing body D2.
Further, the second support member 22 has a fourth extending portion 22f as shown in FIGS. 1 to 5. The fourth extending portion 22f is interposed between the second mounting portion 22c and the fourth connecting portion 22b. In the present embodiment, as shown in FIGS. 4 and 5, the fourth extending portion 22f extends from the fourth connecting portion 22b toward the closed position side in the moving direction X of the second opening / closing body D2, and then extends in the front-rear direction. At Z, it extends toward the second opening / closing body D2 side. The third extending portion 22e and the fourth extending portion 22f extend from the second mounting portion 22c toward both sides of the second opening / closing body D1 in the moving direction X, respectively. Therefore, the second mounting portion 22c is arranged in the central region of the second extending portion 22e and the fourth extending portion 22f in the moving direction X of the second opening / closing body D1.

As shown in FIGS. 4 and 5, the fourth extending portion 22f intersects the first extending portion 21e and the second opening / closing body D2 in the moving direction when the second opening / closing body D2 is located at the open position. It is provided as follows. Here, "intersecting" means that the first support member 21 and the second support member 21 and the second support member 22f move to the open position of the second opening / closing body D2 before the first extension portion 21e and the fourth extension portion 22f move to the open position of the second opening / closing body D2. 22 means that they intersect without touching each other. When the second opening / closing body D2 moves to the open position, a straight line connecting the first connecting portion 21a and the connecting portion (first mounting portion 21c) of the first extending portion 21e to the first opening / closing body D1 The straight line connecting the fourth connecting portion 22b and the connecting portion (second mounting portion 22c) of the fourth extending portion 22f to the second opening / closing body D2 intersects with the first opening / closing body D1 and the second opening / closing body D2. The opening / closing mechanism M is configured so that the opening / closing body moves.

In the present embodiment, as shown in FIGS. 1 and 4, the first extending portion 21e extends to the first guide member 31 located above the second guide member 32, and the fourth extending portion 21e extends to the first guide member 31 located above the second guide member 32. The existing portion 22f extends to the second guide member 32 located on the lower side. When the second opening / closing body D2 moves to the open position, the fourth connecting portion 22b and the fourth extending portion 22f move together with the second opening / closing body D2 to the open position side in the moving direction X, and the fourth connecting portion 22b moves beyond the position of the first connecting portion 21a in the moving direction X. Further, when the second opening / closing body D2 is moved to the open position side, the fourth extending portion 22f intersects below the first extending portion 21e without contacting the first extending portion 21e, and the second The opening / closing body D2 reaches the open position. In the present embodiment, of the fourth extending portion 22f, the portion extending in the front-rear direction Z moves the second opening / closing body D2 to the open position before the first extending portion 21e or the first mounting portion 21c. It is set in a position that does not touch. The intersection between the first extending portion 21e and the fourth extending portion 22f is not limited to the illustrated embodiment, and interference between the first extending portion 21e and the fourth extending portion 22f is caused. To prevent, either one of the first and fourth extending portions 21e, 22f extends below the other extending portion, or one extending portion is the other. It suffices if it extends so as to straddle the upper side of the extending portion. Further, the shapes of the first and fourth extending portions 21e and 22f intersect with each other without contacting the first support member 21 and the second support member 22 before moving to the open position of the second opening / closing body D2. As long as it can be done, it is not particularly limited.

By intersecting the first extending portion 21e and the fourth extending portion 22f in this way, as shown in FIGS. 3 to 5, when the opening / closing body D is opened, the first extending portion 21e and the fourth extending portion 21e and the first extending portion 21e are opened. 4 The opening / closing body D can be opened without interfering with the extending portion 22f. Then, the first extending portion 21e and the fourth extending portion 22f are crossed in this way so as not to interfere with each other, so that the two connecting portions (for example, the first one) provided on one support member are not interfered with each other. 2 In the case of the second support member 22 of the opening / closing body D2, the distance between the third and fourth connecting portions 22a and 22b) can be widened. By widening the distance between the connecting portions that support the opening / closing body D, the weight of the opening / closing body D can be easily supported, and the supporting state of the opening / closing body D becomes stable. Then, by widening the distance between the connecting portions that support the opening / closing body D, it becomes difficult for a rotational moment around the axis perpendicular to the surface of the opening / closing body D to occur. Therefore, when the opening / closing body D is opened / closed, the opening / closing body D is less likely to rattle, and the opening / closing body D can be moved more smoothly.

<Drive mechanism>
The drive mechanism moves the opening / closing body D to automatically open / close the first and second openings 11 and 12.
As shown in FIGS. 2, 3 and 5, the drive mechanism includes a drive unit 4, a control cable arranged between both ends of the drive unit 4 and the first guide member 31 to connect the two. Has. The control cable includes an outer casing 51 extending between both ends of the drive unit 4 and the first guide member 31, and an inner cable 52 (see FIG. 12) slidably housed in the outer casing 51.

Further, as shown in FIG. 12, the drive mechanism moves along the first guide member 31 by the inner cable 52 driven by the drive unit 4, is connected to the first connection unit 21a, and is connected to the first connection unit 21a. A moving member 6 for moving 21a along the first guide member 31 is provided. Although the moving member 6 is connected to the first connecting portion 21a in the present embodiment, it may be connected to the third connecting portion 22a.
In the present embodiment, as shown in FIG. 12, the moving member 6 is operated by the first inner cable 52a and the second inner cable 52b, and the first and second inner cables 52a and 52b have one end of the moving member 6. The other end is connected to a drum 41 (see FIGS. 2, 3 and 5) provided in the drive unit 4. The first and second inner cables 52a and 52b are arranged along the first guide member 31, and at the end of the first guide member 31, the direction is changed by a direction changing member 7 such as a pulley, and the outer casing 51 The inside extends toward the drive unit 4.

In the present embodiment, the drive unit 4 includes an electric motor (not shown) that rotationally drives the drum 41, and when the motor operates, the first and second inner cables 52a and 52b are wound up by the rotation of the drum 41. , The moving member 6 moves along the first guide member 31. When the moving member 6 moves along the first guide member 31, the rolling element R1 of the first connecting portion 21a to which the moving member 6 is connected rolls along the first guide member 31, and the first support member 21 Moves, and the first opening / closing body D1 moves. At this time, the rolling element R2 of the second connecting portion 21b of the first supporting member 21 follows the rolling element R1 driven by the moving member 6. The same applies to the opening and closing of the second opening / closing body D2. The motor is operated by the user operating a switch or a sensor (not shown).
As described above, the opening / closing body opening / closing mechanism of the present embodiment can easily and smoothly move the opening / closing body D by electrically driving the rolling element R. In particular, the opening / closing mechanism of the present embodiment is suitable for opening / closing a heavy opening / closing body such as a commercial refrigerator or a freezer.

Further, as described above, the first opening / closing body D1 and the second opening / closing body D2 center the ends of the rail-shaped first guide member 31 and the second guide member 32 when opening and closing the openings 11 and 12. It moves from the partial side of the first guide member intermediate portion 31c and the second guide member intermediate portion 32c side toward the end portion. In particular, when moving from the closed position to the open position, the first opening / closing body D1 and the second opening / closing body D2 are guided from the bottom to the top by the first guide member 31 and the second guide member 32, and are opened from the moving state. When moving to the position, guide from top to bottom.

<Difference between manufacturing by two-dimensional bending of the first guide member and second guide member and manufacturing by three-dimensional bending>
Conventionally, when manufacturing the first guide member and the second guide member that guide the movement of the first opening / closing body D1 and the second opening / closing body D2 via the first support member and the second support member, the rail is three-dimensionally formed. It was necessary to bend it and process it, and to make it into a shape with a wider hem. However, when performing three-dimensional processing, it is difficult to bend with high accuracy. If the accuracy of the three-dimensional bending process is low, it may cause backlash when the opening / closing body D is moved. That is, in order for the first guide member and the second guide member to have a surface whose back surface 313 is parallel to the vertical direction, the back surface 313 is curved in the width direction by applying a force in the width direction of the back surface 313. However, it is mechanically difficult to bend the back surface 313 in the width direction by applying a force in the width direction of the back surface 313. Therefore, if the first guide member and the second guide member are manufactured so that the back surface 313 is a plane parallel to the vertical direction, the first guide member and the second guide member will be distorted. Further, if the shape of the rail is such that the hem is widened, the width of the end portion of the rail member is widened, so that there is a problem that the gap between the rolling element and the upper part of the rail is widened. There is a problem that the cost is high because it is necessary. For example, when opening a door, a particularly large force is generally applied to the rail, so that rattling is likely to occur, but in manufacturing by three-dimensional bending processing, rattling is more likely to occur due to the above problem. In the first support member and the second support members 21 and 22, since the rail having a C-shaped cross section is curved in a plane, the back surface 313 and the front side surface 312 are inclined with respect to the vertical direction, and the back surface There is no distortion in the direction in which the 313 and the front side surface 312 extend, and the thrust roller TR can easily come into contact with the back surface 313 or the front side surface 312.

<Effect of this embodiment>
On the other hand, in the present embodiment, the rail-shaped first guide member 31 and the second guide member 32 are bent two-dimensionally, and then the first guide member intermediate portion 31c and the second guide member intermediate portion 32c are formed. Is attached to the opening side of the opening member 1 so as to be higher than the positions of the first to fourth closed position guide portions 31a, 31b, 32a, 32b, and the first to fourth closed position guide portions 31a, 31b, 32a and 32b are attached so as to go down to the back side.
That is, when the rail-shaped guide member is three-dimensionally bent, rail parts having different shapes are connected, or when the rail-shaped guide member is bent three-dimensionally, it is not necessary to perform a process of forming a special shape in which the hem is widened.
That is, the first guide member 31 and the second guide member 32 can be manufactured only by bending the rail two-dimensionally, the dimensional accuracy can be easily ensured, and the hem does not need to be widened. Rattling is less likely to occur when moving from the to the open position. Further, since the bending process and the arrangement are simple, the manufacturing is easy, so that the cost can be reduced.

Further, in the present embodiment, as shown in FIG. 2, the distance between the two connecting portions provided on one support member is increased by the configuration of the first and fourth extending portions 21e and 22f described above. Therefore, the lengths of the first and second guide members 31, 32 can be shortened. Therefore, according to the present embodiment, the opening / closing body D can be stably supported, the lengths of the first and second guide members 31 and 32 can be shortened, and the weight reduction and saving of the opening / closing body opening / closing mechanism M can be achieved. Space can be created.

Further, in the present embodiment, as shown in FIG. 13, the opening member 1 has a third guide member 33 on the side opposite to the side where the first guide member 31 and the second guide member 32 are provided. As shown in FIG. 13, the first opening / closing body D1 has a third connecting portion 23a connected to the third guide member 33 at a position opposite to the position where the first supporting member 21 is attached. The support member 23 is attached. In the present embodiment, the third support member 23 is attached to the lower surface of the first opening / closing body D1. Further, as shown in FIG. 13, the second opening / closing body D2 has a sixth connecting portion 24a connected to the third guide member 33 at a position opposite to the position where the second supporting member 22 is attached. 4 Support member 24 is attached. In the present embodiment, the fourth support member 24 is attached to the lower surface of the second opening / closing body D2.

Since the third guide member 33 can have the same configuration as the first and second guide members 31 and 32, the description thereof will be omitted. The third and fourth support members 23 and 24 connect the first and second opening / closing bodies D1 and D2 to the third guide member 33 via the fifth and sixth connecting portions 23a and 24a. The fifth and sixth connection portions 23a and 24a can have the same configuration as the second connection portion 21b shown in FIG. 8, and a rolling element R such as a radial roller or a thrust roller TR can be provided. The fifth and sixth connecting portions 23a and 24a share the same third guide member 33 when opening and closing the first and second opening / closing bodies D1 and D2. By guiding the first and second opening / closing bodies D1 and D2 not only to the first and second guide members 31 and 32 but also to the third guide member 33, the first and second opening / closing bodies D1 and D2 are More stable opening and closing operation is possible.

<Third guide member 33>
Further, in the present embodiment, as shown in FIG. 13, the third guide member 33 is provided at a position where the fifth connecting portion 23a presses the third guide member 33. Since the fifth connecting portion 23a is provided at the position where the third guide member 33 is pressed, the opening / closing body D opens / closes with the first and second guide members 31 and 32 on the upper side of the opening member 1 as fulcrums. Even when a rotational moment about an axis parallel to the moving direction X is applied to the body D, the swing of the opening / closing body D can be prevented.

That is, when a rotational moment is applied to the opening / closing body D and a force is applied in the direction in which the lower end side of the opening / closing body D approaches the opening member 1, the fifth connecting portion 23a presses the third guide member 33 to press the opening / closing body D. Regulate the movement of. As a result, the runout of the lower end of the opening / closing body D can be suppressed, and the opening / closing body D can be moved more smoothly. The same applies to the sixth connection portion 24a. Further, in the present embodiment, the third guide member 33 is arranged closer to the opening / closing body D than the first and second guide members 31 and 32, and the thrust rollers TR of the fifth and sixth connecting portions 23a and 24a are arranged. As a result, the back surface of the third guide member 33 is pressed, and the runout of the lower end of the opening / closing body D is suppressed. The fifth connection portion 23a and the sixth connection portion 24a are TR, but the present invention is not limited to this, and the movement of the opening / closing body D via the ball member is guided by the third guide member 33. You may try to do it. Since the opening / closing body D is supported by the first support members 21 and 22, the opening / closing body D may not have the fifth connecting portion 23a, the sixth connecting portion 24a, and the third guide member 33. As described above, according to the present embodiment, when the first opening / closing body D1 and the second opening / closing body D2 move, smooth movement is easily possible.

The embodiments of the present invention have been described above. The above description is an example of a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. That is, the description of the configuration of the device and the shape of each part is an example, and it is clear that various changes and additions to these examples are possible within the scope of the present invention.

The opening / closing mechanism according to the present invention can easily and smoothly move the opening / closing body, and can also electrically drive the rolling element. In particular, it opens / closes a heavy opening / closing body such as a commercial refrigerator or a freezer. It is useful as it is applied to the structure to be used.

1 Opening member 11 1st opening 12 2nd opening 21 1st support member 21a 1st connection 21b 2nd connection 21c 1st mounting 21e 1st extension 21f 2nd extension 22 2nd support member 22a 3rd connection part 22b 4th connection part 22c 2nd attachment part 22e 3rd extension part 22f 4th extension part 23 3rd support member 23a 5th connection part 24 4th support member 24a 6th connection part 3 Guide member 31 1st guide member 31a 1st closed position guide part 31b 2nd closed position guide part 31c 1st guide member intermediate part 32 2nd guide member 32a 3rd closed position guide part 32b 4th closed position guide part 32c 2nd guide member Intermediate part 33 Third guide member 311 and 321 Bottom surface (rolling surface)
312, 322 Side surface 313, 323, 333 Back surface 314, 324 Top surface 4 Drive unit 41 Drum 51 Outer casing 52 Inner cable 52a 1st inner cable 52b 2nd inner cable 6 Moving member 7 Direction change member B Connection base D Opening / closing body D1 1st open / close body D2 2nd open / close body M open / close body open / close mechanism OL overlap area
R, R1, R2, R3, R4 1st rolling element (radial roller)
RB second rolling element (ball member)
TR 3rd rolling element (thrust roller)
X Moving direction of opening / closing body Y Vertical direction Z Front-back direction

Claims (5)

An opening member having a first opening and a second opening,
A first opening / closing body that can move between an open position where the first opening opens and a closed position where the first opening is closed.
A second opening / closing body that can move between an open position where the second opening opens and a closed position where the second opening is closed.
A first support member attached to the first opening / closing body and supporting the first opening / closing body, and
A second support member attached to the second opening / closing body and supporting the second opening / closing body, and
The first opening / closing body and the second opening / closing body are guided back and forth between the open position and the closed position, respectively, via the first support member and the second support member provided in the opening member. An opening / closing body opening / closing mechanism provided with a guide member for
The guide member has a first guide member and a second guide member extending from the first opening side to the second opening side of the opening member, respectively.
The first support member has a first connecting portion that is movably connected to the first guide member and a second connecting portion that is movably connected to the second guide member.
The second support member has a third connecting portion that is movably connected to the first guide member and a fourth connecting portion that is movably connected to the second guide member.
The first guide member is
A first closed position guide portion that guides the first connection portion so that the first opening / closing body moves to a closed position that closes the first opening.
A second closed position guide portion that guides the third connection portion so that the second opening / closing body moves to a closed position that closes the second opening.
It has a first guide member intermediate portion that is connected to the first closed position guide portion and the second closed position guide portion and is movable between the first connection portion and the third connection portion.
The first closed position guide portion, the second closed position guide portion, and the first guide member intermediate portion are configured to extend on substantially the same plane.
The second guide member is
A third closed position guide that guides the second connection so that the first opening / closing body moves to a closed position that closes the first opening.
A fourth closed position guide portion that guides the fourth connection portion so that the second opening / closing body moves to a closed position that closes the second opening.
It has a second guide member intermediate portion that is connected to the third closed position guide portion and the fourth closed position guide portion and is movable between the second connection portion and the fourth connection portion.
The third closed position guide portion, the fourth closed position guide portion, and the second guide member intermediate portion are configured to extend on substantially the same plane.
The first guide member intermediate portion and the second guide member intermediate portion are arranged in parallel, and one of the first guide member intermediate portion and the second guide member intermediate portion is connected from the respective connection portions. It is arranged so as to have an overlap region in which the other guide member intermediate portion is located on the side in the direction of receiving the load by the first opening / closing body and the second opening / closing body.
The first connection portion, the second connection portion, the third connection portion, and the fourth connection portion have rolling elements on the side where a load is applied to the guide member.
The first guide member is a plane in which the first closed position guide portion, the second closed position guide portion, and the first guide member intermediate portion of the first guide member extend from both ends of the first guide member intermediate portion. The shape is bent or curved on the same plane, and the end portion of the first closed position guide portion and the end portion of the second closed position guide portion are lower than the intermediate portion of the first guide member. Arranged at an angle so that
The second guide member is a plane in which the third closed position guide portion, the fourth closed position guide portion, and the second guide member intermediate portion of the second guide member extend from both ends of the second guide member intermediate portion. The shape is bent or curved on the same plane, and the end portion of the third closed position guide portion and the end portion of the fourth closed position guide portion are lower than the intermediate portion of the second guide member. Arranged at an angle so that
The position of the first support member and the second support member is such that when one of the first opening / closing body and the second opening / closing body is located at a closed position, the other can be pulled apart. Attached to,
Opening and closing mechanism. The first support member is
The first mounting portion to be mounted on the first opening / closing body and
When the first opening / closing body is positioned at the closed position, the first mounting portion has a first extending portion extending from the first connecting portion in a direction away from the first guide member.
The second support member is
A second mounting portion to be mounted on the second opening / closing body and
It is interposed between the second mounting portion and the fourth connecting portion so that when the second opening / closing body is located at the open position, the first extending portion and the second opening / closing body intersect in the moving direction of the second opening / closing body. Has a fourth extending portion provided in the
The opening / closing mechanism for opening / closing the body according to claim 1. The first connection portion and the second connection portion are attached to the upper side of the first opening / closing body, and the first connection portion and the second connection portion are attached to the upper side of the first opening / closing body.
The third connection portion and the fourth connection portion are attached to the upper side of the second opening / closing body, and the third connection portion and the fourth connection portion are attached to the upper side of the second opening / closing body.
The first guide member and the second guide member are arranged so as to be overlapped in the vertical direction.
The opening / closing body opening / closing mechanism according to claim 1 or 2. The first connection portion, the second connection portion, the third connection portion, and the fourth connection portion are respectively.
The first rolling element that receives the load in the vertical direction,
A second rolling element provided on the opposite side of the first rolling element in the vertical direction,
It has a third rolling element that receives a load in the horizontal direction,
The first closed position guide unit, the second closed position guide unit, the third closed position guide unit, and the fourth closed position guide unit are respectively.
The bottom surface on which the first rolling element rolls and
The top surface on which the second rolling element rolls and
It has a side surface on which the third rolling element rolls.
The opening / closing body opening / closing mechanism according to any one of claims 1 to 3. The opening member is provided with a third guide member on the side opposite to the side on which the first guide member and the second guide member are provided.
A third support member having a fifth connecting portion connected to the third guide member is attached to the first opening / closing body at a position opposite to the position where the first support member is attached.
A fourth support member having a sixth connecting portion connected to the third guide member is attached to the second opening / closing body at a position opposite to the position where the second support member is attached.
The third guide member is provided at a position where the fifth connecting portion and the sixth connecting portion press the third guide member.
The opening / closing body opening / closing mechanism according to any one of claims 1 to 4.

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