JP2011017214A - Sliding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deformation or damage of a packing upon opening and closing movement of a sliding door, and to facilitate positioning of the packing on a lower end of the sliding door so that airtightness can be improved.SOLUTION: A sliding door device includes: a side-part packing 70B having a cylindrical body extending along each of right and left side ends on the storage body side of a door body 5 opening and closing an opening 2 formed in the storage body 1; and a gap packing 9 mounted on a lower end of the door body. The sliding door device is provided also with: an auxiliary packing 70C which is continued to a lower end of the side-part packing and is in contact with a floor surface by the lower end; and a side packing 70D which is arranged on an opening/closing side end of the door body and is in contact with a side face of the storage body and an opening/closing-end side face of the auxiliary packing. The auxiliary packing comprises a cylindrical body 71 continued to the side-part packing, and a mounting member 74 extending from the cylindrical body in the direction of the line of tangency. The mounting member overlaps with a longitudinal end part of the gap packing, and is fixed to a surface of the gap packing by a packing member 100 serving as a holding member fixed to the door body by a fixing screw 104.

Description

  The present invention relates to a sliding door device, and more specifically, a sliding door device including packings at the upper end portion, the left and right end portions, and the lower end portion of a door body that opens and closes an opening / closing opening of a building cabinet. It is about.

  Conventionally, this type of sliding door has a lower end of the door body of the sliding door in order to prevent the cool air from flowing out from the lower end of the sliding door when closing the entrance opening of the housing such as a freezer or a refrigerator. A slip packing that contacts the floor surface is attached to the part. Further, in this type of sliding door, packing is provided along the upper end portion and the left and right end portions of the door body in order to prevent cold air from flowing out from the gap between the storage body and the door body (for example, Patent Document 1).

Japanese Patent Laying-Open No. 2005-344948 (Claims, FIGS. 1 and 2)

  By the way, in this kind of sliding door, since the door body opens and closes linearly in a state where the packing is in contact with the floor surface, it is necessary to provide sufficient protection to prevent deformation and damage of the packing. Further, the floor on which the box is built may have a gradient, and it is necessary to adjust the position of the packing after the door is attached to the box. Furthermore, in order to ensure sufficient airtightness at the lower end portion of the door body, the airtightness between the side packing attached to the left and right side end portions of the door body and the shift packing attached to the lower end portion of the door body. It is necessary to have.

  The present invention has been made in view of the above circumstances, prevents deformation and damage of the packing accompanying the opening and closing movement of the sliding door, facilitates adjustment of the packing position at the lower end of the sliding door, and is airtight. It is an object of the present invention to provide a sliding door device that can improve the above.

  To achieve the above object, a sliding door device according to the present invention includes a guide rail disposed horizontally on an upper side of an entrance opening of a building cabinet, and a door body that opens and closes the entrance opening. And a suspension wheel that is mounted on the upper portion of the door body and engages with the guide rail so as to be able to roll, and the upper end portion and the left and right end portions of the door body on the housing body side, A sliding door device comprising: an upper packing and a side packing having a cylindrical main body in contact with each other; and a band-shaped shift packing which is attached to the lower end portion of the door body on the side of the box and is in contact with the floor surface The auxiliary packing, which is provided continuously to the lower end of the side packing on the side surface of the door body, the lower end of which is in contact with the floor, and the open / close side end portion of the door body, And the side that contacts the open / close end side of the auxiliary packing. The auxiliary packing has a cylindrical main body continuous with the cylindrical main body of the side packing, and an attachment piece extending in a tangential direction from the cylindrical main body, and the attachment piece Is superposed on the longitudinal end portion of the shift packing, and is fixed by a pressing member that is mounted on the surface of the shift packing and fixed to the door body by a fixing member.

  By comprising in this way, after attaching a door body to a warehouse, the auxiliary packing and side packing for airtight maintenance of the lower part of a door body can be attached. Moreover, the attachment piece provided in the auxiliary packing can be interposed between the shift packing and the door body, and can be fixed by the packing pressing member simultaneously with the shift packing.

  In this invention, the side packing and the auxiliary packing have a locking piece having an L-shaped cross section projecting to one side of the cylindrical main body, and the locking piece is a frame constituting a side portion of the door body. It is preferable to fit in the fitting groove provided in the box side piece of the material.

  By comprising in this way, by engaging the locking piece provided in the side packing and the auxiliary packing in the fitting groove provided in the frame material constituting the door body, the side packing and the auxiliary packing Can be attached to the door.

  In the present invention, the side packing and the auxiliary packing further include an airtight auxiliary piece that extends in a tangential direction of the cylindrical main body and can contact a side surface of the box, and at least the cylindrical main body in the auxiliary packing. It is preferable that the airtight auxiliary piece has a structure in contact with the inner side of the airtight protective piece provided on the side packing fixed to the opening / closing side end of the door body.

  By configuring in this way, the airtight auxiliary piece of the auxiliary packing and the airtight protective piece of the side packing can cooperate to keep the airtight, and the deformation of the auxiliary packing during the opening / closing movement of the door body is suppressed by the side packing. be able to.

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

  (1) Since the auxiliary packing and the side packing can be attached between the lower part of the door and the floor after the door is attached to the cabinet, maintaining airtightness corresponding to the gap between the door and the floor Can be planned. In addition, since the mounting piece provided on the auxiliary packing can be superposed on the displacement packing and fixed by the pressing member at the same time as the displacement packing, the auxiliary packing can be firmly fixed, and the lower end of the door body can be fixed. Airtightness can be ensured.

  (2) By engaging the locking pieces provided on the side packing and the auxiliary packing into the fitting grooves provided on the frame material constituting the door body, the side packing and the auxiliary packing are joined together to form the door body. Since it can be attached to the side packing and the auxiliary packing, the packing can be easily and firmly attached.

  (3) The airtight auxiliary piece of the auxiliary packing and the airtight protective piece of the side packing can cooperate to keep the airtight, and the deformation of the auxiliary packing when the door body is opened and closed can be suppressed by the side packing. Therefore, it is possible to further improve the air tightness of the lower part of the door body and increase the life of the packing.

It is a schematic front view which shows the sliding door apparatus which concerns on this invention. It is sectional drawing (a) which shows the said slide door apparatus, and the I section expanded sectional view (b) of (a). It is an expanded sectional view showing the guide rail and suspension wheel in this invention. It is sectional drawing which shows the attachment state of the shift | offset | difference packing in this invention. FIG. 5 is a side view of FIG. 4. It is a cross-sectional perspective view which shows the attachment state of the shift | offset | difference packing in this invention. It is the front surface perspective view (a) and back surface perspective view (b) of the connection state of the packing pressing member and cap of the deviation | sucking packing in this invention. It is sectional drawing which shows the attachment state of the auxiliary packing in this invention. It is a cross-sectional perspective view which shows the attachment state of the auxiliary packing in this invention. It is a disassembled perspective view which shows the auxiliary packing in this invention. It is sectional drawing which shows the attachment state of the packing of 2nd Embodiment in this invention. It is a cross-sectional perspective view which shows the attachment state of the packing of 2nd Embodiment in this invention.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated in detail based on an accompanying drawing. Here, the case where the sliding door apparatus which concerns on this invention is used for a freezer is demonstrated.

  A sliding door device according to the present invention includes a guide rail 3 disposed horizontally on an upper side of an opening / closing opening 2 (hereinafter referred to as an opening 2) opened in a cabinet 1 of a prefabricated freezer, and an opening. The door 5 that opens and closes the portion 2 is mounted on the vertical piece 6a of the L-shaped bracket 6 that is mounted on the upper end of the door 5 and is opposed to the concave running surface 7a that rolls on the guide rail 3. A horizontal guide roller 8 which is mounted on a suspension wheel 7 having a pair of flange portions 7b on both sides and a horizontal piece 6b of the bracket 6 and which can roll on the outer surface of the opening frame 2a mounted on the opening edge of the opening 2. And an upper packing 70A and a side packing 70B having a cylindrical main body 71 that are provided along the upper end and the left and right side ends of the door 5 and are in contact with the wall of the storage, and the lower end of the door 5 A slipping pad that is mounted in a hanging shape and contacts the floor F It is and a down 9.

  Further, the sliding door device according to the present invention includes the auxiliary packing 70C at the lower end portion of the side packing 70B and the side packing 70D at the opening / closing side end portion of the door body 5 to protect the auxiliary packing 70C. Yes.

  In addition, when closing the door body 5, it engages with each other in the position where the lower end part of the door body 5 and the floor surface F near the opening part 2 of the container body 1 close, and the door body 5 is attached to the housing body 1. A sealing movement means 10 is formed to press against the opening 2. Further, a packing seat 2b is provided along the opening edge of the opening frame 2a (see FIG. 2).

  As shown in FIGS. 2 and 3, the guide rail 3 includes a wheel traveling unit 30 on which the suspension wheel 7 rolls, a fixing unit 31 fixed to the upper outer surface of the opening 2 of the box 1, and a fixing unit. An abutting portion 32 extending to the lower portion of 31 and abutting against the outer surface of the packing seat 2b provided at the upper portion of the opening 2 is formed of an integral extruded aluminum member. The guide rail 3 is disposed over a closed area A where the door 5 closes the opening 2 of the cabinet 1 and an open area B where the door 5 opens the opening 2.

  The wheel traveling portion 30 includes a rail surface portion 33 that rises in an inverted U-shaped cross section that allows the concave traveling surface 7a of the suspension wheel 7 to roll, and a downward gradient from the lower ends on both sides of the rail surface portion 33 outward. It is formed in a hollow shape including a pair of inclined pieces 34 that are inclined, a pair of hanging pieces 35 that are suspended from the lower ends of both inclined pieces 34, and a lower connecting piece 36 that connects the lower ends of both hanging pieces 35. . Note that the inclination angle (gradient) of the inclined piece 34 is formed in a substantially similar shape to the inwardly tapered surface 7 c provided on the flange portion 7 b of the suspension wheel 7.

  The fixed portion 31 and the contact portion 32 are connected via a crank-shaped step portion 37, and a horizontal piece 36 a extending from the lower connecting piece 36 of the wheel traveling portion 30 is connected to the crank-shaped step portion 37. Yes. The fixing part 31 has an attachment hole (not shown) for the attachment bolt 40 penetrating the wall part 1a of the case 1 at the upper part, and the lower part of the attachment hole part and the horizontal piece 36a are connected by an inclined piece 38a. The reinforcing piece 38b is connected to the intermediate portion of the inclined piece 38a and the crank-shaped step portion 37. Further, a narrow groove-shaped horizontal groove 39a is provided on the surface of the contact portion 32 in the vicinity of the crank-shaped step portion 37, and packing is provided at the lower end of the vertical guide piece 39b extending to the lower portion of the opening of the horizontal groove 39a. A bent piece 39c that abuts against the surface of the seat 2b is provided. The horizontal guide roller 8 is in contact with the surface of the vertical guide piece 39c so as to be able to roll.

  The guide rail 3 formed as described above passes through a mounting hole (not shown) provided in the fixing portion 31 with the mounting bolt 40 in a state where the fixing portion 31 is in contact with the mounting surface of the cabinet 1. The guide rail 3 can be firmly fixed by being screwed to the cabinet 1.

  In addition, the door end side and door bottom side stopper member 52 which controls the movement of the door body 5 is attached to the floor surface F of the closed position of the door body 5 and an open position (refer FIG. 1).

  On the other hand, the suspension wheel 7 is attached at two locations on both ends in the sliding direction at the upper end of the door body 5, and has a concave running surface 7 a corresponding to the inverted U-shape of the rail surface portion 33 of the guide rail 3, and a concave shape. Provided on both sides of the running surface 7a are a pair of flange portions 7b having inwardly tapered surfaces 7c having an inclination angle similar to the inclination angle (gradient) of the inclined piece 34 of the guide rail 3.

  Moreover, 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 surface F on which 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 a vertical piece 6a of an L-shaped bracket 6 fixed to the upper end of the door body 5. 7d is rotatably mounted in the vertical direction (see FIG. 2). A stopper mechanism 60 is provided at the upper end of the vertical piece 6a of the bracket 6 to prevent the door body 5 from being lowered by its own weight. By tightening or loosening the bolt 61 of the stopper mechanism 60, the door body 5 can be adjusted up and down while the door body 5 is suspended. By adjusting the stopper mechanisms 60 at both the left and right ends, the door body is adjusted. 5 can be suppressed.

  Further, the horizontal guide roller 8 is mounted so as to be rotatable in the horizontal direction via a vertical support shaft 7e rotatably supported by a horizontal piece 6b of the bracket 6 fixed to the upper end of the door body 5. The horizontal guide roller 8 is disposed on the lower side of the suspension wheel 7 corresponding to the suspension wheel 7 at two locations.

  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. The upper side (upper end portion) and the left and right sides (left and right side portions) of the door body 5 are in a cylindrical shape that is in contact with, ie, pressed against, a packing receiving seat 2b provided around the opening frame 2a of the opening 2. An upper packing 70A and a side packing 70B are provided (see FIG. 2). Moreover, the lower end part of the side part packing 70B is located above the lower end of the door body 5, and the auxiliary packing 70C which continues to the lower end of this side part packing 70B and contacts the floor surface F is provided (FIG. 5). FIG. 7).

  An upper pulling member (not shown) for biasing the suspension wheel 7 to the housing side and a horizontal guide roller 8 are placed on the housing side at a portion of the guide rail 3 where the suspension wheel 7 is located when the door body 5 is closed and opened. A lower pulling member (not shown) that is biased to be provided is provided. Door closing members 11 and 12 are mounted on the front end side and the rear end side of the opening and closing movement at the lower end side of the door body 5, and are arranged on the floor surface F in the vicinity of the opening 2 of the box 1. The sealing movement means 10 is formed by the guide rollers 14A and 14B that are provided and engage with the door drawing members 11 and 12 at the closed position of the door body 5, respectively (see FIGS. 1 and 2). A protector 13 is attached to the lower end portion of the outer surface plate 5a of the door body 5 so as to be connected between the door attracting members 11 and 12, and the guide rollers 14A and 14B come into contact with the protector 13. Thus, the surface plate 5a can be protected.

  Note that a case body (not shown) in which a linear rail of the linear motor is disposed may be attached to the upper portion of the opening 2 of the box body 1, and this case body is hidden from the outside by the decorative cover 20. Yes.

  The decorative cover 20 is detachably engaged with a cover receiving member 21 fixed to the outer surface of the cabinet 1 by a fixing screw 22. In this case, the cover receiving member 21 is formed, for example, in the shape of a piece obtained by cutting an aluminum extruded profile into an appropriate length, and a plurality of the cover receiving members 21 are arranged at appropriate intervals. The cover receiving member 21 includes a tip of an upper inclined piece 24 inclined downward from an upper end portion of the vertical fixed piece 23 fixed to the wall 1 a of the container 1, and an upper portion of the vertical fixed piece 23. A projecting portion 26 having a hollow triangular shape connecting the tip of the lower inclined piece 25 inclined upward from the side to the outside is provided, and the engaging portion provided at the tip of the upper inclined piece 24 in the protruding portion 26 is provided. The decorative cover 20 is detachably engaged with the stop groove 27. A horizontal locking piece 27 a projects from the upper opening end of the locking groove 27 toward the locking groove 27.

  The cover receiving member 21 does not necessarily have a plurality of pieces, and may be one cover receiving member having a longitudinal shape.

  The decorative cover 20 is formed of, for example, an extruded shape member made of aluminum. The decorative cover 20 has a locking claw portion 28 a that is detachably locked in the locking groove 27 of the cover receiving member 21 at one end, and is inclined to be connected to the upper inclined piece 24 of the cover receiving member 21. An upper cover portion 28 and a front cover portion 29 that is bent from the lower end (other end) of the upper cover portion 28 and covers the guide rail 3 and the suspension wheel 7 are provided.

  In the decorative cover 20 configured as described above, the locking claw portion 28a is normally engaged with the locking groove 27, and the front cover portion 29 covers the rail 3 and the suspension wheel 7 (FIG. 2). reference). Further, at the time of maintenance / inspection, the decorative cover 20 is lifted upward, the locking claw portion 28a is slid between the horizontal locking piece 27a of the locking groove 27, and the decorative cover 20 is held in an open state. Maintenance / inspection work of the traveling part of the guide rail 3 and the suspension wheel 7 and the linear motor can be performed.

  As described above, since the decorative cover 20 and the cover receiving member 21 are both aluminum extruded shapes, the locking groove 27 and the locking claw portion 28a have a metal touch. The locking groove 27 and the locking claw portion 28a hit and a so-called chatter noise is generated. In order to prevent this chatter noise, as shown in FIG. 2 (b), between the back surface of the decorative cover 20 on the side of the locking claw portion 28a and the top surface of the top inclined piece 24 of the cover receiving member 21. It is preferable that a gap s is provided and a sound absorbing packing member P is interposed in the gap s.

  A heater (not shown) for preventing thawing and dew condensation water is embedded at an appropriate position of the opening frame 2a of the box 1 and an appropriate position of the packing seat 2b.

  As shown in FIGS. 6 to 8, the side packing 70 </ b> B includes a cylindrical main body 71, a locking piece 72 having an L-shaped cross section projecting to one side of the cylindrical main body 71, and the cylindrical main body 71. It is formed of a flexible synthetic rubber member including a straight airtight auxiliary piece 73 extending in the tangential direction.

  The side packing 70 </ b> B formed in this way has a locking piece 72 having an L-shaped cross section in the fitting groove 5 d provided in the box side piece 5 e of the frame member 5 b constituting the side part of the door body 5. It is attached to the door body 5 in a fitted state. As shown in FIGS. 8 to 10, the frame member 5 b is a first fitting insertion in which the bent piece 5 g of the one surface plate 5 a is fitted to the end portion in the width direction of the opening / closing side end piece 5 f. A second fitting / insertion that has a groove 5h, has an upright piece 5i toward the box side at the end of the box side piece 5e, and the bent piece 5g of the other surface plate 5a fits into the upright piece 5i. A groove 5j is provided.

  Further, the auxiliary packing 70C is formed of a synthetic rubber member similar to the side packing 70B, and similarly to the side packing 70B, the cylindrical main body 71 having the same shape as the cylindrical main body 71 of the side packing 70B. In addition to the L-shaped locking piece 72 projecting to one side of the cylindrical main body 71 and the straight airtight auxiliary piece 73 extending in the tangential direction of the cylindrical main body 71, a cylindrical shape An attachment piece 74 extending from the main body 71 in a tangential direction orthogonal to the extending direction of the airtight auxiliary piece 73 is provided.

  The auxiliary packing 70 </ b> C formed in this way has a locking piece 72 having an L-shaped cross section fitted in a fitting groove 5 d provided in the box side piece 5 e of the frame member 5 b constituting the side part of the door body 5. In the joined state, it is connected to the lower end of the side packing 70 </ b> B and attached to the door body 5. Further, the mounting piece 74 is bent in a crank shape along the upright piece 5i of the frame member 5b and is superposed on the end surface in the longitudinal direction of the shift packing 9, and is mounted on the surface of the shift packing as will be described later. The fixing member 104 is fixed together with the shift packing 9 by a cap member 100 which is a pressing member of the shift packing 9 fixed to the door body 5 by a fixing screw 104.

  As described above, the auxiliary packing 70C attached to the frame member 5b of the door body 5 has the airtight auxiliary piece 73 positioned on the open / close end side of the door body 5 and is fixed to the open / close side end piece 5f of the frame member 5b. It is provided on a crank-shaped side packing 70 </ b> D fixed by a screw 75 and is in contact with the inner side of the airtight protective piece 77.

  In this case, the side packing 70D is folded in a crank shape from a rectangular flat mounting portion 76 disposed on the surface of the opening / closing side end piece 5f of the frame member 5b, and one side of the flat mounting portion 76 in the longitudinal direction. The airtight protection piece 77 that is bent and has a tip portion that can contact the side surface of the box body 1, and at least the airtight protection piece 77 contacts the airtight auxiliary piece 73 of the auxiliary packing 70 </ b> C with the lower end in contact with the floor surface F. It is like that.

  The side packing 70 </ b> D is formed by screwing a fixing screw 75 penetrating two mounting holes 78 a provided in the side packing holding plate 78 disposed on the surface of the flat mounting portion 76 into the frame member 5 b of the door body 5. The door 5 is fixed to the opening / closing side end.

  Further, an L-shaped guard member 79 for protecting the door body 5 is attached to the lower corners of the door body 5 on the side of the box and the surface side of the half body. In this case, fixing screws 79c are respectively passed through the orthogonal pieces 79a and 79b of the guard member 79 and fixed to the door body 5. The flat mounting portion 76 of the side packing 70D is fixed by a piece 79a located at the door body opening / closing side end of the guard member 79. The piece 79a located at the door body opening / closing side end of the guard member 79 is located between a pair of locking claws 78b projecting from the opposite upper and lower parts on one side of the side packing presser plate 78 (see FIG. 9). Thus, by providing the pair of locking claws 78b on the opposite upper and lower parts on one side of the side packing pressing plate 78, it is possible to position the mounting positions of the guard member 79 and the side packing pressing plate 78, and It is possible to prevent mistakes in attaching the side packing pressing plate 78. In this case, as shown in FIG. 10, the mounting holes 78a of the two fixing screws 75 are provided on a line passing through the center between the locking claws 78b, so that the side packing presser plate 78 can be completely removed even if it is removed once. It can be attached.

  On the other hand, the shift packing 9 is attached in a hanging manner to the lower end of the door body 5 on the cabinet 1 side, and the lower end of the shift packing 9 is in contact with the floor surface F (FIGS. 1, 2). (See FIGS. 4 and 5). The shift packing 9 is formed in a band plate shape by a synthetic rubber member having flexibility, and as shown in FIGS. 2, 4 and 5, the packing receiver fixed to the lower end surface of the door body 5 is used. The member 80 is sandwiched and fixed by the packing pressing member 90 fixed to the surface of the lower end portion of the door body 5 and the cap member 100 attached to the end of the packing pressing member 90. At this time, the mounting surface 74 of the auxiliary packing 70 </ b> C is superposed on the surface of the end portion in the longitudinal direction of the shift packing 9, and is sandwiched and fixed by the packing receiving member 80 and the cap member 100.

  The packing receiving member 80 includes a horizontal fixing piece 82 fixed to the lower end surface of the door body by a first fixing screw 81, an upper vertical piece 83 attached to the side surface of the cabinet body of the door body 5, and the upper vertical piece. It is formed of an aluminum extruded profile having a lower vertical piece 84 depending on the lower end of 83. In the case of a refrigerated employment door, the packing receiving member 80 is formed of a synthetic resin member. In this case, two fitting grooves 85 and 86 that are open in a narrow opening toward the lower side are arranged in parallel on the lower surface of the front end portion of the horizontal fixing piece 82, and the inside of the both fitting grooves 85 and 86. T-shaped packings 9a and 9b each having a substantially T-shaped cross section are attached in a hanging manner. A protective piece 87 is suspended from the leading end opening edge of the fitting concave groove 85 on the leading end side, and the upper surface of the T-shaped packing 9a is protected by the protective piece 87. Further, a locking groove 88 having a pair of locking walls 88 a parallel to each other is provided in a portion adjacent to the fitting groove 86 in the horizontal fixing piece 82, and is fitted into the locking groove 88. The heater wire storage member 89 made of an aluminum extruded shape member is screwed to the horizontal fixing piece 82 and the frame material 5b on the lower side of the door body 5 with the first fixing screw 81, so that the heater wire is stored together with the packing receiving member 80. The member 89 is fixed to the lower end portion of the door body 5. A recess 83 a for accommodating the sponge sealing material 200 is formed on the back surface side of the upper vertical piece 83 in the packing receiving member 80.

  Further, the packing pressing member 90 is formed of an extruded shape member made of aluminum. The packing holding member 90 abuts against the surface of the shift packing 9 at the center, and a flat fixing piece 92 through which a second fixing screw 91 as a fixing member passes, and a second fixing member 92 with respect to the flat fixing piece 92. The fixing screw 91 has a raised portion 94 that rises higher than the height of the head 91a, and has a pair of vertically symmetrical presser wing pieces 93 having a downward inclined surface toward the tip, and the presser wing piece 93 Is formed so that the packing 9 can be sandwiched between the lower end of the lower vertical piece 84 of the packing receiving member 80. The second fixing screw 91 passes through the packing pressing member 90, the upper vertical piece 83 of the packing receiving member 80, and the sponge closing material 200 and is screwed into the door body 5. Further, as shown in FIGS. 4 and 6, on the back surface of the both presser blade pieces 93 of the packing pressing member 90, concave grooves 95 that are displaced from each other and abut against the packing 9 are formed in the longitudinal direction.

  According to the packing presser member 90 formed as described above, the displacement packing 9 can be clamped and fixed at a position close to the floor surface F in cooperation with the lower vertical piece 84 of the packing receiving member 80. The displacement packing 9 can be firmly fixed, and deformation and damage of the displacement packing 9 accompanying opening and closing of the door body 5 can be suppressed. Further, the protruding portion 94 of the packing pressing member 90 can prevent the head 91a of the fixing screw 91 from projecting to the outside, and the pair of pressing wing pieces 93 at the upper and lower portions of the packing pressing member 90 at the tip. Interference with an external object can be smoothly performed by using the downward inclined surface. Further, by forming the pair of presser wing pieces 93 of the packing presser member 90 in a vertically symmetrical shape, there is no fear of attaching the packing presser member 90 upside down when fixing the shift packing 9 to the door body 5. The attachment work of the packing 9 can be facilitated.

  Further, a cap member 100 made of synthetic resin for fixing the displacement packing 9 is attached to the end portion in the longitudinal direction of the packing pressing member 90 in the same manner as the packing pressing member 90. In this case, as shown in FIG. 7, the cap member 100 is provided with a fitting leg piece 101 that fits into the recessed groove 95 of the packing pressing member 90, and a flat fixed piece that can come into contact with the door body 5. A raised surface 102 which is the same as the most raised surface 94a of the raised portion 94 of the packing presser member 90 is formed on the upper and lower sides and one end side of 105, and the upper and lower portions and the tip portion of the cap member 100 are inclined downward toward the tip. The inclined surface 103 is formed. The cap member 100 is fixed to the door body 5 by a fixing screw 104 that passes through an attachment hole 106 provided in the flat fixing piece 105. By fixing the cap member 100 with the fixing screw 104 in this manner, the end portion in the longitudinal direction of the shift packing 9 and the attachment piece 74 of the auxiliary packing 70C are overlapped with each other between the packing receiving member 80 and the cap member 100. Clamp and fix. In this case, the head 104a of the fixing screw 104 is at a lower position than the raised surface 102, and the head 104a does not protrude outside.

  As described above, the fitting leg piece 101 of the cap member 100 is fitted into the concave groove 95 of the packing pressing member 90 and the cap member 100 is attached to the packing pressing member 90, so that both ends of the packing pressing member 90 are attached. The cap member 100 can be easily attached, and the cutting angle errors at both ends of the packing pressing member 90 can be hidden by the cap member 100. Moreover, since the cap member 100 is formed so that the upper and lower parts and the tip part are inclined downward toward the tip, interference with an external object can be suppressed.

  Further, the dimensional accuracy of the concave groove 95 of the long packing pressing member 90 can be improved by forming the packing pressing member 90 from an extruded aluminum member and forming the cap member 100 from a synthetic resin material. As a result, it is possible to easily and reliably join the packing pressing member 90 and the cap member 100.

  In addition, although the said embodiment demonstrated the case where the sliding door apparatus which concerns on this invention was applied to the prefabricated freezer, for example, a prefabricated refrigerator other than a prefabricated freezer, a clean room, a storage, or a general building The same applies.

  For example, when the sliding door device according to the present invention is applied to a refrigerator, the first is that the door body 5A is thinner than the door body 5 for the freezer and the side packing presser plate 78 is not used. It is the structure similar to the sliding door apparatus of 1 embodiment. That is, in 2nd Embodiment, as shown in FIG.11 and FIG.12, the door 5A is the 2nd which opens in the front-end | tip part of the box side piece 5f of the frame material 5B at right angles to the said fitting groove 5d. The insertion groove 5k is provided, and the bent piece 5g of the surface plate 5a is fitted into the second insertion groove 5k. The refrigerator door 5A thus formed is a freezer door, except that the protrusion 5i of the upright piece 5i of the frame 5b of the freezer door 5 is thinner than the freezer door 5. Same as 5.

  Further, the side packing 70D in the second embodiment is fixed by a fixing screw 79c that passes through one piece 79a of the guard member 79 and is screwed into the frame member 5A. That is, in a state where one piece 79a of the guard member 79 is disposed on the surface of the flat attachment portion 76 of the side packing 70D, the fixing screw 79c that penetrates the attachment hole 79d provided in the piece 79a is screwed into the frame member 5A. As a result, the side packing 70D is fixed. In this state, since the airtight protection piece 77 of the side packing 70D is in contact with the cylindrical main body 71 and the airtight auxiliary piece 73 of the auxiliary packing 70C, the airtight auxiliary piece 73 of the cylindrical main body 71 of the auxiliary packing 70C and the side packing 70D. With the airtight protective piece 77, the airtightness of the lower part of the door body 5A can be improved. Further, the deformation of the cylindrical main body 71 of the auxiliary packing 70C when the door body 5A is opened and closed can be suppressed by the side packing 70D.

  Moreover, in 2nd Embodiment, the attachment piece 74 of the cylindrical main body 71 of the auxiliary packing 70C is polymerized on the end surface in the longitudinal direction of the displacement packing 9 along the flat surface of the box side piece 5e of the frame material 5A. The fixing screw 104 penetrating the cap member 100 which is a pressing member is screwed into the frame member 5B of the door body 5A, so that the gap packing 9 and the packing receiving member 80 and the cap member 100 are sandwiched and fixed.

  In addition, in 2nd Embodiment, since another part is the same, the same code | symbol is attached | subjected to the same part and description is abbreviate | omitted.

  In the above embodiment, the case where the airtight protective piece 77 of the side packing 70D is in contact with only the cylindrical main body 71 and the airtight auxiliary piece 73 of the auxiliary packing 70C has been described, but the airtight protective piece 77 of the side packing 70D is at least an auxiliary. What is necessary is just to contact the cylindrical main body 71 and the airtight auxiliary | assistant piece 73 of the cylindrical main body 71 of packing 70C. For example, the airtight protective piece 77 of the side packing 70D may be brought into contact with the cylindrical main body 71 of the side packing 70B and the airtight auxiliary piece 73 connected to the cylindrical main body 71 of the auxiliary packing 70C.

DESCRIPTION OF SYMBOLS 1 Housing | casing body 2 Entrance / exit opening 3 Guide rail 5, 5A Door body 5b, 5B Frame material 5d Fitting groove 5e Housing side piece 7 Suspension wheel 9 Displacement packing 70B Side part packing 70C Auxiliary packing 70D Side packing 71 Cylindrical main body 72 Locking piece 73 Airtight auxiliary piece 74 Mounting piece 75 Fixing screw 76 Flat mounting portion 77 Airtight protection piece 78 Side packing pressing plate 78a Mounting hole 78b Locking claw 80 Packing receiving member 90 Packing pressing member 100 Cap member (pressing member)
104 Fixing screw (fixing member)

Claims (3)

A guide rail that is horizontally disposed on the upper side of the entrance opening of the building cabinet, a door that opens and closes the entrance opening, and an upper portion of the door that is attached to the guide rail. Suspended wheels that engage in a rollable manner, an upper packing and a side packing that have a cylindrical main body that is provided along the upper end and the left and right ends of the door on the side of the box, and that contacts the wall of the box. In the sliding door device comprising a strip-shaped packing that is attached in a hanging manner to the lower end of the door body on the side of the box body and contacts the floor surface,
Auxiliary packing that is provided continuously to the lower end of the side packing on the side surface of the box body of the door, and the lower end contacts the floor surface;
A side packing that is provided at the open / close side end of the door body and that contacts the side surface of the box and the open / close end side surface of the auxiliary packing;
The auxiliary packing has a cylindrical main body continuous with the cylindrical main body of the side packing, and an attachment piece extending in a tangential direction from the cylindrical main body,
The mounting piece is superposed on the longitudinal end portion of the shift packing, and is fixed by a pressing member that is mounted on the surface of the shift packing and fixed to the door body by a fixing member.
A sliding door device characterized by that. The sliding door device according to claim 1,
The side packing and the auxiliary packing have an L-shaped locking piece projecting to one side of the cylindrical main body, and the locking piece is a box side piece of a frame material that constitutes a side portion of the door body. A sliding door device, wherein the sliding door device is fitted in a fitting groove provided in the housing. The sliding door device according to claim 1 or 2,
The side packing and the auxiliary packing further include an airtight auxiliary piece that extends in a tangential direction of the cylindrical main body and can come into contact with a side surface of the box, and the cylindrical main body and the airtight auxiliary piece in the auxiliary packing are A sliding door device, wherein the sliding door device is brought into contact with an inner side of an airtight protective piece provided on a side packing fixed to an opening / closing end of the door body.

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