WO2018151299A1 - Opening/closing mechanism for opening/closing body - Google Patents

Abstract

An opening/closing mechanism for an opening/closing body, the opening/closing mechanism being capable of easy, smooth movement when the opening/closing body is moved. The opening/closing mechanism (M) for an opening/closing body guides the movement of a first opening/closing body (D1) and a second opening/closing body (D2) using a first guide member (31) and a second guide member (32) with a first support member (21) and a second support member (22) interposed therebetween. The first guide member (31) has a first closed-position guide part (31a) and a second closed-position guide part (31b) that extend in substantially the same plane as a first guide member center portion (31c) at both ends of the first guide member center portion (31c), and are disposed so as to be lower than the first guide member center portion (31c). The second guide member (32) has a third closed-position guide part (32a) and a fourth closed-position guide part (32b) that are provided so as to extend in substantially the same plane as a second guide member center portion (32c) at both ends of the second guide member center portion (32c), and are disposed so as to be lower than the second guide member center portion (32c).

Description

Opening / closing body opening / closing mechanism

The present invention relates to an opening / closing body opening / closing mechanism that can be opened and closed by pulling the opening / closing body.

An opening / closing body opening / closing mechanism for opening / closing a plurality of opening / closing bodies (for example, a shoji, 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. The sliding door device includes a traveling body that travels in the left-right direction, a left guide body and a right guide body that are rotatably attached to the traveling body, and a left roller and a right guide that travel along the left guide body. A sliding door mounting body having a right roller that travels along the body, a sliding door mounted on the sliding door mounting body, and an urging force that biases the sliding door mounting body backward between the traveling body and the sliding door mounting body Means. This sliding door device can obtain a smooth movement of the sliding door mounting body, and can improve the operability of the sliding door.

JP 2010-101057 A

However, in the sliding door device described in Patent Document 1, the front guide rail and the rear guide rail are separated from each other in a direction parallel to the direction in which the sliding door is separated from the opening. For this reason, the traveling body that is engaged with both guide rails receives a rotational moment due to the weight of the sliding door, and therefore a load is applied in the width direction of the guide rails. As a result, it is difficult to travel a portion where the extending direction of the guide rail such as an arc 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 that can easily and smoothly move when the opening / closing body moves.

The opening / closing body opening / closing mechanism of the present invention comprises:
An opening member having a first opening and a second opening;
A first opening / closing body movable between an open position where the first opening is opened and a closed position where the first opening is closed;
A second opening / closing body movable between an open position where the second opening is opened 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;
A second support member attached to the second opening / closing body and supporting the second opening / closing body;
Provided in the opening member, the first opening / closing body and the second opening / closing body are reciprocally guided between an open position and a closed position via the first support member and the second support member, respectively. An opening / closing body opening / closing mechanism provided with a guiding member,
The guide member has a first guide member and a second guide member respectively extending from the first opening side of the opening member to the second opening side,
The first support member includes a first connection portion that is connected to the first guide member so as to be relatively movable, and a second connection portion that is connected to the second guide member so as to be relatively movable.
The second support member includes a third connection portion that is connected to the first guide member so as to be relatively movable, and a fourth connection portion that is connected to the second guide member so as to be relatively movable.
The first guide member is
A first closed position guiding portion for guiding the first connecting portion so that the first opening / closing body moves to a closed position for closing the first opening;
A second closed position guiding portion for guiding the third connecting portion so that the second opening / closing body moves to a closed position for closing the second opening;
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 part, the second closed position guide part, and the first guide member intermediate part are configured to extend on substantially the same plane,
The second guide member is
A third closed position guide part that guides the second connection part so that the first opening and closing body moves to a closed position that closes the first opening part;
A fourth closed position guide part for guiding the fourth connection part so that the second opening / closing body moves to a closed position for closing the second opening part;
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 to each connection portion. Arranged so as to have an overlap region where the other guide member intermediate portion is located on the side in the direction of receiving the load by the first opening and closing body and the second opening and closing body,
The first connection part, the second connection part, the third connection part and the fourth connection part have rolling elements on the side where a load is applied to the guide member,
The first guide member is disposed so as to be inclined such that an end portion of the first closed position guide portion and an end portion of the second closed position guide portion are lower than an intermediate portion of the first guide member,
The second guide member is disposed so as to be inclined such that an end portion of the third closed position guide portion and an end portion of the fourth closed position guide portion are lower than the intermediate portion of the first guide member,
The first support member and the second support member are positions at which when one of the first opening / closing body and the second opening / closing body is located at a closed position, the other can be moved backwardly. Installed on.

According to the present invention, it is possible to provide an opening / closing body opening / closing mechanism that can easily and smoothly move 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 the schematic top view which moved the 1st opening / closing body to the open position from the state of FIG. It is a perspective view which shows the state which has the 2nd opening / closing body of the opening / closing body opening / closing mechanism of FIG. 1 in an open position. It is the schematic top view which moved the 2nd opening-closing body to the open position from the state of FIG. It is a right view of the guide member in the opening-closing body opening-closing mechanism of FIG. It is the schematic which looked at the connection part used for the opening-and-closing body opening-and-closing mechanism of FIG. 1 in the moving direction of the opening-and-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 fragmentary sectional view which shows the principal part structure of the connection part shown in FIG. It is a fragmentary sectional view which shows the principal part structure of the modification of a connection part. It is the schematic which shows the state which the 1st connection part and the 2nd connection part were located in the 1st closed position guide part and 3rd closed position guide part which have the 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, an opening / closing body opening / closing mechanism according to an embodiment of the present invention will be described with reference to the drawings.
<Overall structure of the opening / closing body opening / closing mechanism M>
As shown in FIG. 1, the opening / closing body 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.
The opening / closing body opening / closing mechanism M moves the first opening / closing body D1 and the second opening / closing body D2 (hereinafter sometimes simply referred to as the opening / closing body D) by dragging the first opening 11 and the second opening. 12 is a mechanism for opening and closing 12. The use of the opening / closing body opening / closing mechanism M is not particularly limited, and can be applied to, for example, a door mechanism of a structure that accommodates an object such as a commercial refrigeration / freezer. Further, the opening / closing body D may be moved manually, but in the present embodiment, the connecting portion having the rolling elements is moved along the guide member by the driving portion 4 (driving mechanism) using the control cable. The opening / closing body D is opened and closed electrically.

<Opening 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 portion 11 communicates one side with the other side through the opening portion. In the present embodiment, the housing portion of the opening member 1 communicates with the outside of the opening member 1. In the present embodiment, the first opening 11 constitutes the right opening of the opening member 1.
The second opening 12 communicates the one side with the other side through the opening. In the present embodiment, the housing of the opening member 1 communicates with the outside of the opening member 1. 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 this embodiment, the opening member 1 is a housing having an accommodating portion therein 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, a lower 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 this 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 up / down direction Y, and both the moving direction X and the up / down direction Y are referred to. The vertical direction is referred to as the front-rear direction Z (see FIG. 2). The opening member 1 is not limited to the shape shown in the figure, and may be a housing having a shape other than a substantially rectangular parallelepiped shape, a frame having the first opening portion 11 and the second opening portion 12, or the like. .
In the present embodiment, as shown in FIGS. 1 and 2, the first opening portion 11 and the second opening portion 12 are disposed 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 this embodiment, but the first opening 11 and the second opening 12 are opened and closed by the opening / closing body D. There is no particular limitation if possible.

<First Opening / Closing Body D1 and Second Opening / Closing Body D2>
In the opening / closing body opening / closing mechanism M, the first opening / closing body D1 is movable between an open position where the first opening 11 opens and a closed position where the first opening 11 is closed, and the second opening / closing body D2 The second opening 12 is movable between an open position where the second opening 12 is opened and a closed position where the second opening 12 is closed.
As shown in FIGS. 2, 3 and 5, the first opening / closing body D1 and the second opening / closing body D2 move between an open position (see FIGS. 3 and 5) and a closed position (see FIG. 2), respectively. Then, it is configured to move to the draw.

Here, the open position of the first opening / closing body D <b> 1 is a position where the first opening 11 is opened, and is a position where the inside of the opening member 1 communicates with the outside via the first opening 11. When the first opening / closing body D1 is moved to the open position, the first opening 11 is opened, and the article accommodated in the opening member 1 can be taken out. The open position of the second opening / closing body D <b> 2 is a position where the second opening 12 is opened, and is a position where the inside and the outside of the opening member 1 communicate with each other through the second opening 12. When the second opening / closing body D2 is moved to the open position, the second opening 12 is opened, and the article accommodated 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 toward the second opening 12 (see FIG. 3), so that the first opening When the part 11 is opened and the second opening / closing body D2 moves toward the first opening 11 (see FIGS. 4 and 5), the second opening 12 is opened. The open position is not limited to a position where the target opening is completely opened, and may be a position where a part of the target opening is opened. The closed position is not limited to a 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 that are opened by the first opening body D1 and the second opening body D2, respectively, are opened. The area is large.
The closed position of the first opening / closing body D1 is a position where the first opening 11 is closed, and is a position where the first opening 11 is closed and the inside and the outside of the opening member 1 are blocked. When the 1st opening-and-closing body D1 moves to a closed position, the 1st opening part 11 closes and the opening member 1 internal space and the exterior are interrupted | blocked. The closed position of the second opening / closing body D2 is a position where the second opening 12 is closed, and is a position where the second opening 12 is closed and the inside and the outside of the opening member 1 are blocked. When the 2nd opening-and-closing body D2 moves to a closed position, the 2nd opening part 12 closes and the opening member 1 internal space and the exterior are interrupted | blocked. Thereby, if the opening member 1 is structures, such as a commercial refrigerator-freezer, for example, the cold inside the opening member 1 can be hold | maintained. When each of the opening / closing body D1 and the second opening / closing body D2 is in the closed position, the closed areas of the first opening 11 and the second opening 12 that are opened by the opening / closing body D1 and the second opening / closing body D2 are smaller than when the opening / closing body D1 and the second opening / closing body D2 are in the closed position. large.
In the present embodiment, the first opening / closing body D1 and the second opening / closing body D2 are the left and right doors disposed on the front surface side of the opening member 1, but the opening is opened by moving to the open position or the closed position. It may be a door that closes, or may be a door or a door disposed above and below.

As shown in FIGS. 1 and 2, the first opening / closing body D1 and the second opening / closing body D2 have substantially the same surface when both the first opening / closing body D1 and the second opening / closing body D2 are in the closed position. They are arranged side by side with a gap so as to be on a plane. Further, when one side is located at the closed position and the other side is moved to the open position, in addition to the movement in the movement direction X, as shown in FIGS. Also move. In the present embodiment, the first opening / closing body D1 and the second opening / closing body D2 each have a substantially rectangular plate shape as shown in FIG. 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, the first opening / closing body D1 and the second opening / closing body D2 can be easily opened and closed by providing a manual opening / closing handle on the front side of the first opening / closing body D1 and the second opening / closing body D2. Also 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>
1 to 7, the first support member 21 is attached to the first opening / closing body D1, supports the first opening / closing body D1, and the second support member 22 is attached to the second opening / closing body D2. The second opening / closing body D2 is supported.
The first support member 21 and the second support member 22 are positions at which one of the first opening / closing body D1 and the second opening / closing body D2 can be moved backward when the other is located at the closed position. Installed on.

As shown in FIGS. 1 and 2, the first support member 21 connects the first opening / closing body D <b> 1 to both the first and second guide members 31 and 32.
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 is connected to the first guide member 31 so as to be relatively movable, and to the second guide member 32 so as to be relatively movable. 2 connection part 21b. Details of the first connection portion 21a and the second connection portion 21b will be described later.
Moreover, the 1st support member 21 has the 1st attaching part 21c attached to the 1st opening / closing body D1, and is attached to the 1st opening / closing body D1 via the 1st attaching part 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 the present embodiment, the first attachment portion 21c is provided in parallel with the front or 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. It is comprised from the long side member along the horizontal direction which is the moving direction of the body D1, and the 1st opening / closing body D1 is attached to the 1st support member 21 in the more stable state. The first attachment portion 21c can be attached to 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.
In the present embodiment, the first support member 21 includes a first extension portion 21e extending between the first attachment portion 21c and the first connection portion 21a, a first attachment portion 21c, and a second connection portion 21b. And 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. Detailed descriptions 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.

As shown in FIGS. 1 and 2, the second support member 22 connects the second opening / closing body D <b> 2 to both the first and second guide members 31 and 32.
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 is connected to the first guide member 31 so as to be relatively movable, and the second support member 22 is connected to the second guide member 32 so as to be relatively movable. 4 connecting portions 22b. In addition, the 3rd connection part 22a and the 4th connection part 22b are respectively the structures substantially the same as the 1st connection part 21a and the 2nd connection part 21b of the 1st supporting member 21, and it is the 1st connection part 21a for details. This will be described later together with the second connection portion 21b.
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 part 22a and the fourth connection part 22b are attached to the second opening / closing body D2 via the second attachment part 22c. In the present embodiment, the second mounting portion 22c is provided in parallel with the front or back surface of the second opening / closing body D2 so as not to interfere with the relative movement with the first opening / closing body D1 in the movement of the opening / closing body. It is comprised from the long side member along the horizontal direction which is a moving direction of the opening / closing body D2, and the 2nd opening / closing body D2 is attached to the 2nd support member 22 in the more stable state. In addition, the 2nd attachment part 22c can be attached to the 2nd opening-and-closing body D2 by well-known fixing means, such as a screw.
Thereby, at the time of opening / closing movement of the second opening / closing body D2, the second opening / closing body D2 and the second support member 22 move together between the open position and the closed position.
In the present embodiment, as shown in FIGS. 1 and 2, the second support member 22 includes a third extending portion 22e extending between the second attachment portion 22c and the third connecting portion 22a, 2 It has the 4th extension part 22f extended between the attachment part 22c and the 4th connection part 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. Detailed descriptions 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 D <b> 1 and the second opening / closing body D <b> 2 through the first support member 21 and the second support member 22. Is guided 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 relative movement of the first support member 21 and the second support member 22 smoothly. The guide member 3 guides the first opening / closing body D1 and the second opening / closing body D2 through the first support member 21 and the second support member 22 so as to reciprocate between an open position and a closed position, respectively.
The guide member 3 is connected to the first support member 21 and the second support member 22 so as to be relatively movable. 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 direction in which the first opening 11 and the second opening 12 are arranged.
The guide member 3 includes a first guide member 31 and a second guide member 32 that respectively extend from the first opening 11 side to the second opening 12 side of the opening member 1. 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, so that the opening member 1 extends in the width direction (lateral direction in the drawing) at a predetermined height. When moving from the moving state and moving to the closed position located in the depth direction of the opening member 1 (the depth direction in the drawing), it moves while descending from the predetermined height, and from the predetermined height. Will reach a lower closed position.

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

In the present embodiment, the first guide member 31 is an elongated rail-like 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 in a direction substantially parallel to the moving direction X of the opening / closing body D. The first guide member intermediate portion 31c has first and second ends on both ends in the longitudinal direction thereof. Second closed position guide portions 31a and 31b are respectively provided.
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. 31a and the 2nd closed position guide part 31b are the shape bent or curved on the same plane with respect to the extending direction of the 1st guide member 31c.
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 longitudinal ends of the first guide member intermediate portion 31c to both end portions of the first guide member 31, respectively. Extend to. As shown in FIGS. 1, 2, and 6, the first guide member 31 is configured such that the first and second closed position guide portions 31 a and 31 b are in front of the first guide member 31, that is, the opening side of the opening 11 ( A downward inclination from 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) from the positive direction of the Z axis shown in FIG. The opening member 1 is disposed.

The first guide member 31 is provided in a direction in which a load is applied (lower side in FIG. 6) so that a bottom surface 311 on which a rolling element described later rolls, and the first connection portion 21a and the third connection portion 22a do not come off. And a side surface 312 that engages. 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, as shown in FIGS. 6 and 7, the first guide member 31 has a substantially C-shaped cross section together with a second guide member 32 described later.
Specifically, the first guide member 31 has a substantially C-shaped cross section with an opening on the opening / closing body D side, and a back surface 313 extends upward from a bottom surface 311 which is a rolling surface provided on the lower side. The top surface 314 is provided in parallel with the bottom surface 311 at the upper end of the back surface 313. A side surface 312 extends downward in the vertical direction from the front side of the top surface 314, and a thrust roller TR, which will be described later, engages in a rollable manner. 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 such that the back surfaces 313 and 323 and the front side surfaces 312 and 322 have an angle with respect to the vertical direction. Since the rear surfaces 313 and 323 and the front side surfaces 312 and 322 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 disposed on the rear surfaces 313 and 323 or the front side surface. Since the state in contact with 312 and 322 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 is a third closed position that guides the second connecting portion 21 b so that the first opening / closing body D <b> 1 moves to the closed position that closes the first opening 11. A guide portion 32a, a fourth closed position guide portion 32b for guiding the fourth connecting portion 22b so that the second opening / closing body D2 moves to a closed position for closing the second opening portion 12, and a third closed position guide portion 32a. A second guide member intermediate portion 32c is connected to the fourth closed position guide portion 32b and the second connection portion 21b and the fourth connection portion 22b are movable. Since the second guide member 32 and each part thereof are basically the same in configuration as the first guide member 31 and each part thereof, a specific description is omitted.

Particularly, 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, like the first guide member 31, the second guide member 32 has a shape in which a linear rail member is secondarily bent or curved, and the second guide member intermediate portion 32c. From both ends, 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 32c.

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

In the 1st guide member 31, the 1st closed position guide part 31a, the 2nd closed position guide part 31b, and the 1st guide member middle part 31c are formed, without giving two-dimensional bending processing or diameter expansion processing. Thus, each connection portion 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 and diameter expansion processing. It forms without, and it can guide each connection part 21a, 21b, 22a, 22b, and eventually the opening-and-closing body D. FIG.

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

As shown in FIG. 2, the overlap region OL extends along the longitudinal direction of the first and second guide member intermediate portions 31 c and 32 c on the side in the direction of receiving the load of the opening / closing body D (that is, in the vertical direction Y). This is a region of the first and second guide member intermediate portions 31c and 32c arranged with an overlap on the lower side.
In the present embodiment, as shown in FIGS. 1 to 5, the first connection portion 21a and the second connection portion 21b are attached to the upper side of the first opening / closing body D1, and the third connection portion 22a and the fourth connection portion 22b. Is attached to the upper side of the second opening / closing body D2.
The first and second guide members 31 and 32 are arranged in a straight line so as to overlap the vertical direction Y and 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 has an opening position side of the first opening / closing body D <b> 2 of the first guide member 31 and an opening position side of the first opening / closing body D <b> 1 of the second guide member 32. It overlaps and is comprised in the center part of the whole longitudinal direction which match | combined the 1st guide member 31 and the 2nd guide member 32 together.

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 moved in the front-rear direction Z of the opening member 1. The space occupied in the front-rear direction Z of the first and second guide members 31 and 32 can be reduced as compared with the case where the first and second guide members 31 and 32 are arranged horizontally (in the vertical direction in FIG. 2). It is possible to suppress the occurrence of a large rotational moment centering on the first to fourth connecting portions 21a, 21b, 22a, and 22b that generates a frictional force between the guide member and the guide member. Therefore, for example, when installing other members (not shown) on the upper surface of the opening member 1 or the like, a wide installation space can be secured. In the present embodiment, the first guide member 31 is disposed on the upper side and the second guide member 32 is disposed on the lower side. However, the vertical relationship between the first guide member 31 and the second guide member 32 is reversed. Thus, the first guide member 31 and the second guide member 32 may be arranged.

<First to fourth connecting portions 21a, 21b, 22a, 22b>
The first connection portion 21a, the second connection portion 21b, the third connection portion 22a, and the fourth connection 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, the second connection portion 21b, the third connection portion 22a and the fourth connection portion 22b. Has substantially the same configuration. Therefore, the configuration of the second connection portion 21b, the third connection portion 22a, and the fourth connection portion 22b as well as the first connection portion 21a will be described with reference to FIGS.
The first connecting part 21a, the second connecting part 21b, the third connecting part 22a, and the fourth connecting part 22b are respectively the first rolling elements R1, R2, R3, R4 (hereinafter simply referred to as the rolling element 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 moved.
The rolling element R is disposed on the side where a load is applied to the guide member 3 in the first connection portion 21a, the second connection portion 21b, the third connection portion 22a, and the fourth connection portion 22b.
The rolling elements R are arranged on the bottom surfaces 311 and 321 provided on the lower side of the first and second guide members 31 and 32, as shown in FIGS.
When the first and second opening / closing bodies D1, D2 move along the first and second guide members 31, 32, the rolling element R has bottom surfaces 311, 321 of the first and second guide members 31, 32. Roll along.

The second rolling element RB (hereinafter sometimes simply referred to as the 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 disposed below the top surface 314 provided on the upper side of the first and second guide members 31 and 32, contacts the top surfaces 314 and 324, and slides along the top surfaces 314 and 324. To do. The rolling element RB rolls in particular under a load from above.
In the present embodiment, the rolling element RB is disposed on a rotating shaft portion 206 to which two thrust rollers TR are rotatably attached. In the present embodiment, the rolling element RB is a ball member disposed at each upper end portion of the rotating shaft portion 206, as shown in FIG. The rolling element RB as a ball member is disposed in a concave ball holding portion 208 provided at the upper end of the rotating shaft portion 206 so as to be freely rollable. The ball member as the rolling element RB can be rotated in all directions around the center point of the rolling element RB with a part of the rolling element RB protruding by the ball member protruding upward in the ball holding portion 204. It is attached. Note that 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 are inclined downward from the front side to the rear side of the opening member 1 at both ends. Even if the top surfaces 314 and 324 are inclined with respect to the horizontal plane, the friction between the top surface 314 and the top surface 314 is suppressed while receiving the load due to the inclination. When the first to fourth connecting portions 21a, 21b, 22a, and 22b move, they slide smoothly.

The third rolling element TR (hereinafter sometimes simply referred to as the rolling element TR) applies a load in the horizontal direction at the first connection part 21a, the second connection part 21b, the third connection part 22a, and the fourth connection part 22b. The 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 element TR is disposed between the side surfaces 312 and 322 and the back surfaces 313 and 323 of the first and second guide members 31 and 32.

More specifically, as shown in FIGS. 7 to 10, the first connection portion 21a, the second connection portion 21b, the third connection portion 22a, and the fourth connection portion 22b are respectively composed of a rolling element R and a rolling element TR. In addition to the rolling elements RB, a connection base B and a ball support 208 are provided.
The connection base B supports the rolling element R and the rolling element TR in a rotatable manner, and supports the rolling element RB through the ball support portion 2208 in a rotatable manner.

The rolling base R is attached to the connection base B so as to be rotatable around the horizontal axis, and the two rolling elements TR are attached so as to be rotatable around the vertical axis.

As shown in FIGS. 7 to 10, the connection base B is perpendicular to the first to fourth extending portions 21e, 21f, 22e and 22f (indicated by 21e in FIGS. 7, 9 and 10). It is connected to be swingable around the axis. Note that the bottom surface 311 (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) on which the rolling elements R, RB, TR roll. The side surface 312 (the side surface 322 of the second guide member is also shown in FIG. 12) includes a first closed position guide portion 31a, a second closed position guide portion 31b, a third closed position guide portion 32a, and a fourth closed position guide portion. Each of 32b has.
Moreover, in this Embodiment, the 1st connection part 21a, the 2nd connection part 21b, the 3rd connection part 22a, and the 4th connection part 22b do not need to have the rolling element RB. For example, as shown in the connection part 21aA shown in FIG. 11, in the structure of the first connection part 21, there is no rolling element RB, that is, the upper end of the rotating shaft part 206A of the rolling element TR attached to the connection base B. It is good also as a structure which does not arrange | position the rolling element RB, without providing the ball | bowl holding | maintenance part 208 in this.

Further, the first to fourth connecting portions 21a, 21b, 22a, 22b move from the first and second guide member intermediate portions 31c, 32c to the first to fourth closed position guide portions 31a, 31b, 32a, 32b. At this time, the first to fourth extending portions 21e, 21f, 22e, and 22f are swung. For example, the connection base B of the first to fourth connection portions 21a, 21b, 22a, and 22b swings through the shaft portion at one end of the corresponding first to fourth extension portions 21e, 21f, 22e, and 22f, respectively. Installed as possible. Further, the first to fourth connecting portions 21a, 21b, 22a, 22b and the corresponding first to fourth extending portions 21e, 21f, 22e, 22f are centered on a plurality of axes by, for example, universal joint coupling. You may connect so that rocking | fluctuation is possible.
As a result, the rolling elements R (R1 to R4) of the first to fourth connection portions 21a, 21b, 22a, and 22b change directions along the first to fourth closed position guide portions 31a, 31b, 32a, and 32b. Move smoothly.

In the first to fourth closed position guide portions 31a, 31b, 32a, and 32b, as shown in FIGS. 1, 6, and 12, the bottom surfaces 311 and 321 are provided on 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 inclined and attached to the opening member 1, whereby the bottom surfaces 311 and 321 of the first and second guide members 31 and 32 are attached to the guide members 31 and 32. It has a slope that goes down toward the edge. 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 pressed against the opening by its own weight, so that the first to fourth closings in which the bottom surfaces 311 and 312 are inclined to open the opening. Since it is also necessary to move up the position guide portions 31a, 31b, 32a, and 32b, the open / close body D can be kept closed.

As described above, the first to fourth connecting portions 21a, 21b, 22a, and 22b have the rolling elements R on the side where the load is applied to the first and second guide members 31 and 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 from the rolling element R in the same direction, that is, downward.
The 1st and 2nd guide members 31 and 32 continue receiving the downward load by the rolling element R between the closed position of the 1st and 2nd opening-and-closing bodies D1 and D2, and an open position. Thereby, it is suppressed that the direction where the load from the rolling element R to the 1st and 2nd guide members 31 and 32 is added varies. For this reason, the first to fourth connecting portions 21a, 21b, 22a, 22b, which are caused by variations in the direction in which the load is applied, play in the first and second guide members 31, 32, and the first to fourth connecting portions. 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 moved smoothly.

As shown in FIGS. 1, 4 and 6, the first and second guide members 31, 32 are overlapped in the vertical direction to roll when one opening / closing body D is moved. The two rolling elements R1, R2 (R3, R4) have the same distance in the front-rear direction Z from the opening / closing body D1 (D2) 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 substantially the same between the rolling elements R1, R2 (R3, R4). Thereby, when opening and closing the opening / closing body D, the two rolling elements R can be smoothly moved along the first and second guide members 31 and 32.

In the present embodiment, as shown in FIGS. 1 to 5, when the first opening / closing body D1 is located at the closed position, the first mounting member 21c is connected to the first support member 21 from the first connection portion 21a. The first extending portion 21e extends in a direction away from the first guide member 31.
The first extension part 21e extends between the first connection part 21a and the first attachment part 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 direction away from the first guide member 31 is the movement direction X of the first opening / closing body D1, the vertical direction Y in which the load is applied, the movement direction X, and the vertical direction. The front-rear direction Z perpendicular to Y is included. Specifically, as shown in FIGS. 1 and 2, the first extending portion 21e extends from the first connecting portion 21a in the front-rear direction Z toward the first opening / closing body D1, and then the first opening / closing portion 21e. The body D1 is configured to extend in the moving direction X toward the closed position (right side in FIG. 2) and to extend downward in the vertical direction Y to be connected to the first attachment portion 21c.

Moreover, in this embodiment, the 1st supporting member 21 has the 2nd extension part 21f, as FIG.1 and FIG.2 shows. The second extension portion 21f extends between the second connection portion 21b and the first attachment portion 21c. The second extending portion 21f extends from the second connecting portion 21b toward the first opening / closing body D1 in the front-rear direction Z, and then extends toward the open position in the moving direction X of the first opening / closing body D1. The first extending portion 21e and the second extending portion 21f extend toward both sides in the moving direction X of the first opening / closing body D1, starting from the first mounting portion 21c. Accordingly, the first attachment portion 21c is disposed in the central region of the first extension portion 21e and the second extension portion 21f in the moving direction X of the first opening / closing body D1.

Moreover, in this embodiment, the 2nd supporting member 22 has the 3rd extension part 22e, as FIG. 1 and FIG. 2 shows. The third extending portion 22e extends between the third connecting portion 22a and the second attachment portion 22c. The third extending portion 22e extends from the third connecting portion 22a toward the second opening / closing body D2 in the front-rear direction Z, and then extends toward the open position in the moving direction X of the second opening / closing body D2.
Further, as shown in FIGS. 1 to 5, the second support member 22 has a fourth extending portion 22f. The fourth extending portion 22f is interposed between the second attachment portion 22c and the fourth connection portion 22b. In this embodiment, as shown in FIGS. 4 and 5, the fourth extending portion 22 f extends from the fourth connecting portion 22 b to the closed position side in the moving direction X of the second opening / closing body D <b> 2 and then back and forth. Z extends toward the second opening / closing body D2. The third extending portion 22e and the fourth extending portion 22f extend toward both sides of the moving direction X of the second opening / closing body D1, starting from the second attachment portion 22c. Accordingly, the second attachment portion 22c is arranged in the central region of the second extension portion 22e and the fourth extension 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 in the moving direction of the first extending portion 21e and the second opening / closing body D2 when the second opening / closing body D2 is located at the open position. It is provided as follows. Here, “intersect” means that the first support member 21 and the second support member are moved before the first extension portion 21e and the fourth extension portion 22f move to the open position of the second opening / closing body D2. It means that 22 intersects without touching. When the second opening / closing body D2 moves to the open position, a straight line connecting the first connecting portion 21a and the connection portion (first mounting portion 21c) of the first extending portion 21e to the first opening / closing body D1; A straight line connecting the fourth connecting portion 22b and the connecting portion (second mounting portion 22c) to the second opening / closing body D2 of the fourth extending portion 22f intersects, and the first opening / closing body D1 and the second opening / closing body D2 The opening / closing body opening / closing mechanism M is configured so that the

In the present embodiment, as shown in FIGS. 1 and 4, the first extending portion 21 e extends to the first guide member 31 positioned on the upper side with respect to the second guide member 32, and the fourth extension 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 in the moving direction X beyond the position of the first connecting portion 21a. When the second opening / closing body D2 is further moved to the open position side, the fourth extending portion 22f crosses 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, a portion extending in the front-rear direction Z of the fourth extension portion 22f moves to the first opening portion 21e or the first attachment portion 21c before moving the second opening / closing body D2 to the open position. The position is set so that it does not touch. The intersection between the first extension portion 21e and the fourth extension portion 22f is not limited to the illustrated embodiment, and interference between the first extension portion 21e and the fourth extension portion 22f is caused. In order to prevent, either one of the first and fourth extending portions 21e, 22f extends below the other extending portion, or one extending portion of the other extending portion What is necessary is just to extend so that the upper side of an extension part may be straddled. Further, the shapes of the first and fourth extending portions 21e and 22f intersect with each other without the first support member 21 and the second support member 22 contacting each other before moving to the open position of the second opening / closing body D2. As long as it is possible, there is no particular limitation.

Thus, when the first extending portion 21e and the fourth extending portion 22f intersect, the first extending portion 21e and the second extending portion 22e are opened when the opening / closing body D is opened, as shown in FIGS. The opening / closing body D can be opened without interference with the four extending portions 22f. In this way, the first extending portion 21e and the fourth extending portion 22f are crossed so as not to interfere with each other, thereby providing two connecting portions (for example, the first extending portion) provided on one support member. In the case of the second support member 22 of the two opening / closing body D2, the distance between the third and fourth connection portions 22a and 22b) can be increased. By widening the interval 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 support state of the opening / closing body D is stabilized. Then, by widening the interval between the connecting portions that support the opening / closing body D, a rotational moment around an axis perpendicular to the surface of the opening / closing body D is less likely 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 and 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 that is routed between the drive unit 4 and both ends of the first guide member 31, and connects both. Have The control cable includes an outer casing 51 extending between the drive unit 4 and both ends of the first guide member 31, and an inner cable 52 (see FIG. 12) slidably accommodated 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 and is connected to the first connection part 21a, so that the first connection part A moving member 6 for moving 21 a along the first guide member 31 is provided. In addition, in this embodiment, although the moving member 6 is connected to the 1st connection part 21a, you may be connected to the 3rd connection part 22a.
In this 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 one end of each of the first and second inner cables 52a and 52b is 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 52 a and 52 b are routed along the first guide member 31, changed in direction by the direction changing member 7 such as a pulley at the end of the first guide member 31, and the outer casing 51. The interior extends toward the drive unit 4.

In the present embodiment, the drive unit 4 includes an electric motor (not shown) that drives the drum 41 to rotate, and when the motor is activated, the first and second inner cables 52a and 52b are wound 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 R <b> 1 of the first connection portion 21 a 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 R <b> 2 of the second connection portion 21 b of the first support member 21 follows the rolling element R <b> 1 driven by the moving member 6. The same applies to the opening / closing of the second opening / closing body D2. The operation of the motor is performed by the user operating a switch or sensor (not shown).
Thus, the opening / closing body opening / closing mechanism of the present embodiment can move the opening / closing body D easily and smoothly by electrically driving the rolling element R. In particular, when opening and closing heavy opening and closing bodies such as commercial refrigerators and freezers, the opening and closing body opening and closing mechanism of this embodiment is suitable.

Further, as described above, when the first opening / closing body D1 and the second opening / closing body D2 open and close the openings 11, 12, the ends of the rail-shaped first guide member 31 and the second guide member 32 are centered. The first guide member intermediate part 31c and the second guide member intermediate part 32c, which are partial sides, move from the side toward the end part. 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 below to above by the first guide member 31 and the second guide member 32, and are opened from the moving state. When moving to a position, guide from top to bottom.

<Difference between manufacture by two-dimensional bending of first guide member and second guide member and manufacture 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-dimensional. It was necessary to bend and process it, and to make it the shape which a hem spreads further. 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, there is a possibility that it becomes a factor of play when the opening / closing body D is moved. That is, in order to make the first guide member and the second guide member have a plane parallel to the vertical direction of the back surface 313, 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 surface parallel to the vertical direction, the first guide member and the second guide member are distorted. In addition, if the shape of the rail is a shape in which the hem expands, the width of the end of the rail member becomes wide, so there is a problem that the gap between the rolling element and the rail upper portion becomes wide, and the processing to make a special shape is also required. Since it is necessary, there arises a problem of high cost. For example, when a door is opened, a particularly large force is generally applied to the rail. Therefore, in the manufacturing by three-dimensional bending, the play is more likely to occur due to the above problem. Since the first support member and the second support members 21 and 22 have a C-shaped rail with a curved surface, the back surface 313 and the front side surface 312 are inclined with respect to the vertical direction. The thrust roller TR can easily come into contact with the back surface 313 or the front side surface 312 without distortion in the extending direction of 313 and the front side surface 312.

<Effects of this embodiment>
On the other hand, in the present embodiment, the rail-shaped first guide member 31 and second guide member 32 are two-dimensionally bent, and then the first guide member intermediate portion 31c and the second guide member intermediate portion 32c. 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, It is attached so that 32a and 32b may go down to the back side.
That is, when the rail-shaped guide member is three-dimensionally bent, rail components having different shapes are connected, or when three-dimensionally bending is performed, it is not necessary to perform a special process for expanding the hem.
That is, the first guide member 31 and the second guide member 32 can be manufactured only by bending the rail two-dimensionally, and it is easy to ensure the dimensional accuracy thereof, and it is not necessary to expand the hem. The backlash is less likely to occur when moving from the open position to the open position. In addition, since the bending process and the arrangement are simple, the manufacturing becomes easy, and the cost can be reduced.

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

Moreover, in this embodiment, the opening member 1 has the 3rd guide member 33 on the opposite side to the side in which the 1st guide member 31 and the 2nd guide member 32 were provided, as FIG. 13 shows. As shown in FIG. 13, the first opening / closing body D <b> 1 has a third connection portion 23 a that is connected to the third guide member 33 at a position opposite to the position where the first support member 21 is attached. A 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 D <b> 2 includes a sixth connection portion 24 a that is connected to the third guide member 33 at a position opposite to the position where the second support member 22 is attached. Four support members 24 are 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, description thereof is omitted. The third and fourth support members 23, 24 connect the first and second opening / closing bodies D1, D2 to the third guide member 33 via the fifth and sixth connection portions 23a, 24a. The fifth and sixth connecting portions 23a and 24a can have the same configuration as the second connecting portion 21b shown in FIG. 8, and can be provided with a rolling element R such as a radial roller or a thrust roller TR. The fifth and sixth connecting portions 23a, 24a move while sharing the same third guide member 33 when the first and second opening / closing bodies D1, D2 are opened / closed. The first and second opening / closing bodies D1, D2 are guided not only by the first and second guiding members 31, 32 but also by the third guiding member 33, whereby the first and second opening / closing bodies D1, D2 are Opening and closing operations can be performed more stably.

<Third guide member 33>
Moreover, in this embodiment, as FIG. 13 shows, the 3rd guide member 33 is provided in the position where the 5th connection part 23a presses the 3rd guide member 33. As shown in FIG. By providing the fifth connecting portion 23a at a position where the third guide member 33 is pressed, the opening / closing body D opens and closes with the first and second guide members 31 and 32 above the opening member 1 as fulcrums. Even when a rotational moment about an axis parallel to the movement 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 such a direction that the lower end side of the opening / closing body D approaches the opening member 1, the fifth connecting portion 23 a presses the third guide member 33, and the opening / closing body D Regulate the movement of Thereby, the swing 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. In the present embodiment, the third guide member 33 is disposed closer to the opening / closing body D than the first and second guide members 31, 32, and the thrust roller TR of the fifth and sixth connection portions 23a, 24a. Thus, the back surface of the third guide member 33 is pressed, and the swing of the lower end of the opening / closing body D is suppressed. In addition, although the 5th connection part 23a and the 6th connection part 24a were made into TR, it is not restricted to this, It comprises with a ball member and the movement of the opening-closing body D is guided by the 3rd guide member 33 via a ball member. You may make it do. Since the opening / closing body D is supported by the first support members 21, 22, the opening / closing body D may not include the fifth connection portion 23 a, the sixth connection portion 24 a, and the third guide member 33. Thus, according to the present embodiment, when the first opening / closing body D1 and the second opening / closing body D2 move, smooth movement can be easily performed.

The embodiment of the present invention has been described above. The above description is an illustration of a preferred embodiment of the present invention, and the scope of the present invention is not limited to this. That is, the description of the configuration of the apparatus and the shape of each part is an example, and it is obvious that various modifications and additions to these examples are possible within the scope of the present invention.

The disclosure of the specification, drawings and abstract contained in the Japanese application of Japanese Patent Application No. 2017-028355 filed on Feb. 17, 2017 is incorporated herein by reference.

The opening / closing body opening / closing mechanism according to the present invention can move the opening / closing body easily and smoothly, and can also drive the rolling element electrically. Especially, it opens and closes heavy opening / closing bodies such as commercial refrigerators and freezers. It is useful as a thing applied to the structure to make.

DESCRIPTION OF SYMBOLS 1 Opening member 11 1st opening part 12 2nd opening part 21 1st support member 21a 1st connection part 21b 2nd connection part 21c 1st attachment part 21e 1st extension part 21f 2nd extension part 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, 321 Bottom surface (rolling surface)
312, 322 Side surface 313, 323, 333 Rear surface 314, 324 Top surface 4 Drive unit 41 Drum 51 Outer casing 52 Inner cable 52a First inner cable 52b Second inner cable 6 Moving member 7 Direction change member B Connection base D Opening / closing body D1 First opening / closing body D2 Second opening / closing body M Opening / closing body opening / closing mechanism OL Overlap region
R, R1, R2, R3, R4 First rolling element (radial roller)
RB 2nd rolling element (ball member)
TR 3rd rolling element (thrust roller)
X Moving direction of the opening / closing body Y Vertical direction Z Front / back direction

Claims (5)

1. An opening member having a first opening and a second opening;
   A first opening / closing body movable between an open position where the first opening is opened and a closed position where the first opening is closed;
   A second opening / closing body movable between an open position where the second opening is opened 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;
   A second support member attached to the second opening / closing body and supporting the second opening / closing body;
   Provided in the opening member, the first opening / closing body and the second opening / closing body are reciprocally guided between an open position and a closed position via the first support member and the second support member, respectively. An opening / closing body opening / closing mechanism provided with a guiding member,
   The guide member has a first guide member and a second guide member respectively extending from the first opening side of the opening member to the second opening side,
   The first support member includes a first connection portion that is connected to the first guide member so as to be relatively movable, and a second connection portion that is connected to the second guide member so as to be relatively movable.
   The second support member includes a third connection portion that is connected to the first guide member so as to be relatively movable, and a fourth connection portion that is connected to the second guide member so as to be relatively movable.
   The first guide member is
   A first closed position guiding portion for guiding the first connecting portion so that the first opening / closing body moves to a closed position for closing the first opening;
   A second closed position guiding portion for guiding the third connecting portion so that the second opening / closing body moves to a closed position for closing the second opening;
   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 part, the second closed position guide part, and the first guide member intermediate part are configured to extend on substantially the same plane,
   The second guide member is
   A third closed position guide part that guides the second connection part so that the first opening and closing body moves to a closed position that closes the first opening part;
   A fourth closed position guide part for guiding the fourth connection part so that the second opening / closing body moves to a closed position for closing the second opening part;
   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 to each connection portion. Arranged so as to have an overlap region where the other guide member intermediate portion is located on the side in the direction of receiving the load by the first opening and closing body and the second opening and closing body,
   The first connection part, the second connection part, the third connection part and the fourth connection part have rolling elements on the side where a load is applied to the guide member,
   The first guide member is disposed so as to be inclined such that an end portion of the first closed position guide portion and an end portion of the second closed position guide portion are lower than an intermediate portion of the first guide member,
   The second guide member is disposed so as to be inclined such that an end portion of the third closed position guide portion and an end portion of the fourth closed position guide portion are lower than an intermediate portion of the second guide member,
   The first support member and the second support member are positions at which when one of the first opening / closing body and the second opening / closing body is located at a closed position, the other can be moved backwardly. Opening and closing body opening and closing mechanism attached to the.
2. The first support member is
   A first attachment portion attached to the first opening and closing body;
   A first extending portion that extends from the first connecting portion in a direction away from the first guide member when the first opening / closing body is located at a closed position;
   The second support member is
   A second attachment portion attached to the second opening and closing body;
   It is interposed between the second attachment part and the fourth connection part, and intersects the moving direction of the first extension part and the second opening / closing body when the second opening / closing body is located at the open position. The opening-closing body opening-closing mechanism of Claim 1 which has a 4th extension part provided in.
3. The first connection part and the second connection part are attached to the upper side of the first opening / closing body,
   The third connection part and the fourth connection part are attached to the upper side of the second opening / closing body,
   The opening / closing body opening / closing mechanism according to claim 1 or 2, wherein the first guide member and the second guide member are arranged so as to overlap each other in the vertical direction.
4. The first connection part, the second connection part, the third connection part and the fourth connection part are respectively
   A first rolling element receiving a load in a vertical direction;
   A second rolling element provided on the opposite side of the first rolling element in the vertical direction;
   A third rolling element that receives a load in the horizontal direction,
   The first closed position guide, the second closed position guide, the third closed position guide, and the fourth closed position guide are respectively
   A bottom surface on which the one rolling element rolls;
   A top surface on which the two rolling elements roll;
   The opening / closing body opening / closing mechanism according to any one of claims 1 to 3, further comprising a side surface on which the three rolling elements roll.
5. The opening member is provided with a third guide member on a 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 connection portion connected to the third guide member is attached to the first opening / closing body at a position opposite to a position where the first support member is attached;
   The second opening / closing body has a fourth support member attached to the third guide member connected to the third guide member at a position opposite to the position where the second support member is attached.
   The opening / closing body opening / closing mechanism according to any one of claims 1 to 4, wherein the third guide member is provided at a position where the fifth connection portion and the sixth connection portion press the third guide member. .

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