JP4334405B2 - Sliding door device - Google Patents

Description

  The present invention relates to a sliding door device. More specifically, the present invention relates to a guide rail disposed horizontally on the upper side of an entrance / exit opening of a building cabinet, and a door for opening / closing the entrance / exit opening. The present invention relates to a sliding door device that includes a suspension wheel that is mounted on an upper part of the body and engages with the guide rail so as to roll.

In general, a sliding door is widely used as a door opening / closing means for opening and closing an entrance / exit opening of a building. As this sliding door device, for example, a guide rail disposed horizontally on the upper side of the entrance opening of the building cabinet, and an upper part of the door that opens and closes the entrance opening, the guide is mounted. In a sliding door device including a suspension wheel that is slidably engaged with a rail, the guide rail is connected to one or a plurality of rail bases having at least a rail surface protruding in an inverted V shape, and the rail base. The guide member is formed with a piece-shaped guide member, and the rail surface of the guide member is formed at the same height as the rail surface of the rail base portion, and a bent portion that is bent toward the box side is formed, thereby opening the door body. There is known a structure in which a door is in close contact with the periphery of an opening of a box when closing a portion (see, for example, Patent Document 1).
Japanese Patent No. 3491338 (“Claims”, paragraph numbers 0007, 0008, 0017, 0027, 0028, FIGS. 3 and 7)

  However, in the one described in Japanese Patent No. 3491338, by forming a bent portion bent on the rail side of the guide member on the rail surface, a deviation occurs between the rail base portion and the guide member, and the door body. Depending on the state of hermetic adjustment between the door and the cabinet, the door is pressed against the vicinity of the opening of the cabinet, and there is a problem that the opening and closing of the door becomes heavy.

  The present invention has been made in view of the above circumstances, and provides a slide door device that maintains an airtight state between the slide door and the opening of the building and facilitates opening and closing of the slide door. Let it be an issue.

  A guide rail that is horizontally disposed on the upper side of the entrance opening of the building cabinet, and an upper part of the door that opens and closes the entrance opening, and is capable of rolling on the guide rail. In the sliding door device comprising the suspended wheels, the guide rail has at least a rail base portion whose rail surface rises in a substantially inverted V shape in cross section, and at least the rail surface connected to the rail base portion has an inverted V cross section shape. A piece-shaped guide member that protrudes like a rail, and the rail surface of the guide member is formed at the same height as the rail surface of the rail base, and is bent toward the box side, A wheel receiving portion on which the suspension wheel can roll is formed on one side. (Claim 1).

  In the present invention, it is preferable that the guide members are arranged at the closed front end and the closed rear end of the guide rail.

  According to this invention, since it is configured as described above, the following effects can be obtained.

  (1) According to the invention described in claim 1, when the opening is closed by the door body by bending the rail surface of the guide member toward the box side, the door body is around the opening of the building. Therefore, the airtight state between the sliding door and the opening of the building can be maintained. Moreover, since the suspension wheel can be supported by the wheel receiving portion of the guide member by forming a wheel receiving portion on which the suspension wheel can roll on one side of the guide member, when opening and closing the slide door The suspension wheel can smoothly roll between the rail base and the guide member, and the sliding door can be easily opened and closed.

  (2) According to the invention described in claim 2, the guide members are disposed at the closed-side front end portion and the closed-side rear end portion of the guide rail, so that the closed-side front and rear sides of the door body are built. In addition to the above (1), the airtight state of the sliding door and the opening of the building can be maintained.

  Hereinafter, the best mode of a sliding door device according to the present invention will be described in detail with reference to the accompanying drawings. Here, the case where the sliding door apparatus which concerns on this invention is applied to a prefabricated refrigerator is demonstrated.

  1 is a front view showing an example of a slide door device according to the present invention, FIG. 2 is a cross-sectional view showing the slide door device, FIG. 3 is a front view showing a guide rail in the present invention, and FIG. 3 is a cross-sectional view taken along line II of FIG.

  The sliding door device includes a guide rail 3 disposed horizontally on the upper side of an entrance / exit opening 2 (hereinafter referred to as an opening 2) established in a cabinet 1 of a prefabricated refrigerator, and the guide rail 3 Is mounted on the upper end portion of the door body 5 via a bracket 6 and rolls on the guide rail 3. It is mainly composed of suspension wheels 7. A sealed moving means 10 is formed on the lower surface of the door 5 and the floor 8 when the door 5 is closed.

  As shown in FIG. 3, the guide rail 3 includes a plurality of (in this case, two) extruded aluminum base members 31 having a substantially rectangular cross section in which a rail surface 30 is raised in an inverted V-shaped cross section, and the rail. A piece-shaped plastic guide member 32 having a substantially rectangular cross section connected to the base 31 is formed. In this case, as shown in FIG. 5, the guide member 32 is formed with a bent portion 33 that is bent in an arc shape toward the box body 1, and the rail surface 30 has the same height as the rail surface 30 of the rail base portion 31. The outer peripheral edge 7b of the suspension wheel 7 to be described later rolls on one side, for example, the lower side of the outer side, and is formed horizontally with respect to the floor portion 8. A wheel receiver 34 having a possible support surface 35 is formed.

  In addition, the guide member 32 is provided in the closing side front end part and the closing side rear end part of the guide rail 3 so as to correspond to the suspension wheel 7 attached to both upper ends of the door body 5. Further, the rail base 31 and the guide member 32 do not necessarily have a rectangular cross section as long as the rail surface 30 protrudes at least in an inverted V shape. Further, the bent portion 33 of the guide member 32 does not necessarily have an arc shape, and may have an inclined straight line shape.

  The rail base 31 and the guide member 32 configured as described above are mounted on the rail mounting member 4 that is mounted on the box body 1 with mounting bolts 41 and are fixed with fixing bolts 36. In this case, as shown in FIGS. 2 to 4, the rail mounting member 4 has a V-shaped holding portion 42 on which the rail base portion 31 and the guide member 32 are placed, and an inclined shape from one end of the holding portion 42. An inclined portion 43 extending in a vertical direction, a vertical mounting portion 44 connected to the tip of the inclined portion 43 in a crossing manner, and a reinforcing portion 45 connected to the lower end of the mounting portion 44 and the lower portion of the inclined portion 43. It is formed of an aluminum extruded profile.

  The rail mounting member 4 formed in this way is placed on the holding portion 42 in a state where the rail base portion 31 and the guide member 32 are connected to each other, and the fixing bolt 36 is screwed from the outside of the holding portion 42 to the rail. The base 31 and the guide member 32 are fixed. Then, in a state where the mounting portion 44 is in contact with the mounting surface of the cabinet 1, the mounting bolt 41 penetrates through the mounting hole 44 a provided in the mounting portion 44 and is screwed into the cabinet 1, whereby the rail base portion 31. And the guide member 32 can be firmly fixed.

  Accordingly, since the connection position between the rail base 31 and the guide member 32 can be changed as appropriate in accordance with the closed position of the door body 5, the processing of the guide rail 3 can be facilitated, and the guide rail 3 and Assembling of the door body 5 can be facilitated.

  A stopper member 50 of the door body 5 is attached to the end of the rail attachment member 4 (see FIGS. 1 and 3). The stopper member 50 includes a bracket 51 attached to the rail attachment member 4 with fixing bolts 36, and a synthetic rubber stopper piece 53 fixed to a hanging portion 51a of the bracket 51 with a set screw 52. Further, a synthetic rubber stopper piece 54 that collides with the stopper piece 53 of the stopper member 50 is attached to the door contact surface of the door body 5 by a set screw (not shown) (see FIG. 1). In addition, the stopper member 55 of the door body 5 is attached to the floor 8 at the open position of the door body 5 (see FIG. 1).

  On the other hand, the suspension wheel 7 is attached to two places on both ends in the sliding direction at the upper end of the door body 5, and the V-shaped groove 7 a corresponding to the inverted V-shape of the rail surface 30 of the guide rail 3, As described above, the outer peripheral edge 7 b that rolls on the rail surface 30 and can roll on the support surface 35 of the wheel receiving portion 34 is provided. Further, the position of the suspension wheel 7 can be adjusted according to the mounting state of the door body 5 (specifically, the unevenness or the inclined state of the floor portion 8 where the door body 5 is located). That is, a support shaft that is slidable (movable up and down) in a vertical slot (not shown) provided in the vertical piece 61 of the L-shaped bracket 6 fixed to the upper end of the door body 5. 62 is mounted so as to be rotatable in the vertical direction (see FIGS. 2 and 4). A stopper mechanism 63 is provided at the upper end of the vertical piece 61 of the bracket 6 to prevent the door body 5 from dropping due to its own weight.

  The suspension wheel 7 formed in this way can roll the V-shaped groove 7a and the outer peripheral edge 7b on the guide rail 3 (specifically, the rail base 31 and the guide member 32), and the door body 5. At the time of sealing, the guide rail 3 can move to the closed position along the bent portion 33 of the guide member 32. Further, when moving along the bent portion 33 of the guide member 32, the support surface 35 of the wheel receiving portion 34 supports the outer peripheral edge 7b of the suspension wheel 7, and the suspension wheel 7 can roll. When opening and closing the door body 5, the suspension wheel 7 can smoothly roll between the rail base portion 31 and the guide member 32, and the door body 5 can be easily opened and closed.

  The door body 5 includes a pair of surface plates 5a, a frame material 5b interposed between the side portions of the surface plates 5a, and foamed polyurethane or the like in a space formed by both the surface plates 5a and the frame material 5b. It has a sandwich structure filled with a foamable heat insulating core material 5c, and a packing receiving seat 71 provided around the opening edge of the opening 2 on the upper side and the left and right sides of the door 5 on the side of the box 1. A packing 70 that is in pressure contact with the periphery is provided. Further, a derailment prevention member 56 whose height is adjustable with respect to the upper end of the door body 5 is detachably attached to the upper end of the door body 5. Moreover, the shift | offset | difference packing 57 which contacts the floor part 8 is hung by the lower end part of the door body 5 (refer FIG.1 and FIG.2). In addition, a heater (not shown) for thawing and preventing condensed water is embedded at an appropriate position of the packing mounting portion of the cabinet 1 and an appropriate position of the packing seat 71.

  On the other hand, a sealing movement means 10 is formed on the lower surface of the door 5 and the floor 8 when the door 5 is closed. The sealing moving means 10 is rotatable to the protector 11 attached along the moving direction of the surface plate 5 a of the door body 5, door attracting members 12 attached to both ends of the door body 5, and the floor portion 8. The door 5 is pressed against the closed position of the box 1 by engaging the guide roller 13 with the protector 11 and the door pulling member 12.

  Further, when the door body 5 is opened, when the door body 5 is moved to the open side, the suspension wheel 7 moves to the rail base portion 31 side while being supported by the wheel receiving portion 34 from the bent portion 33 of the guide member 32. Then, after the door body 5 is released from the close contact state of the opening 2, the suspension wheel 7 can roll on the rail base 31 to open the door body 5.

  Therefore, since the door body 5 can be opened and closed while maintaining the same height, the opening and closing operation can be easily performed. Further, when the suspension wheel 7 moves onto the bent portion 33 of the guide member 32, the door body 5 can be pressed toward the opening 2 side of the housing 1, so that the door 5 can be securely attached to the housing 1 side. Can be adhered to. In this case, since the suspension wheel 7 rolling on the guide member 32 is supported by the wheel receiving portion 34, the rolling between the bent portion 33 of the guide member 32 and the rail base portion 31 can be performed smoothly. Therefore, the door body 5 can be easily opened and closed.

  In addition, in the said embodiment, although the single door type door apparatus was demonstrated, the door apparatus of this invention is not necessarily limited to a single door type thing, Of course, it can apply also to a double door type door apparatus. It is. In the case of this double door type, the guide member 32 may be provided on the guide rail 3 of each door 5 as described above.

  In addition, in the said embodiment, although the case where opening and closing of the door body 5 was a manual type was demonstrated, it is needless to say that it is applicable also when it is an electric type.

  Moreover, although the said embodiment demonstrated the case where the sliding door apparatus which concerns on this invention was applied to the prefabricated refrigerator, it is the same also in general buildings other than a prefabricated refrigerator, for example, a clean room, a storage, a freezer, etc. Of course, it is applicable to.

It is a schematic front view which shows the sliding door apparatus which concerns on this invention. It is sectional drawing which shows the said slide door apparatus. It is an enlarged front view which shows the guide rail in this invention. It is sectional drawing which shows the state which mounted the suspension wheel in the position along the II line | wire of FIG. It is a perspective view of the guide member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Box 2 Opening / closing opening 3 Guide rail 5 Door 7 Suspension wheel 30 Rail surface 31 Rail base 32 Guide member 34 Wheel receiving part

Claims (2)

A guide rail that is horizontally disposed on the upper side of the entrance opening of the building cabinet, and an upper part of the door that opens and closes the entrance opening, and is capable of rolling on the guide rail. In a sliding door device having a suspension wheel to be combined,
The guide rail includes a rail base portion in which at least the rail surface rises in a substantially inverted V shape in cross section, and a piece-shaped guide member in which at least the rail surface connected to the rail base portion rises in an inverted V shape in cross section. ,
The rail surface of the guide member is formed at the same height as the rail surface of the rail base, and is bent toward the box, and the suspension wheel can roll on one side of the guide member. A sliding door device characterized by forming a receiving portion. The sliding door device according to claim 1,
A sliding door device, wherein the guide member is disposed at a closed front end and a closed rear end of the guide rail.

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