JP5289203B2 - 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. A suspension wheel that is attached to the upper portion of the door body and engages with the guide rail so as to be able to roll, and a packing that is attached to the lower end portion of the door body in a hanging manner and contacts the floor surface. The present invention relates to a sliding door device.

  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. The packing which contacts the floor surface is attached to the part. In this case, there is known a structure in which the packing is mounted by a screw member that is screwed to the door body via a presser fitting that is provided along a lower end side surface of the door body on the storage body side (for example, a patent). Reference 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. In addition, since the sliding door opens and closes in a straight line with the door close to the outer surface of the cabinet, the presser fittings and screw members to which the packing is attached come into contact with external objects, hindering the opening and closing of the door. There are concerns.

  The present invention has been made in view of the above circumstances, and suppresses the deformation and damage of the packing accompanying the opening and closing of the sliding door, and prevents the packing mounting portion from touching an external object and hindering the opening and closing. It is an object of the present invention to provide a sliding door device.

  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 mounted on the upper portion of the door body and engaged with the guide rail so as to be able to roll, and a packing mounted on the lower end portion of the door body in a suspended manner and in contact with the floor surface. In the sliding door device, the horizontal fixing piece fixed to the lower end surface of the door body, the upper vertical piece attached to the side surface of the box body of the door body, and the lower vertical piece hanging from the lower end of the upper vertical piece A packing receiving member, a packing pressing member for sandwiching the packing between the upper vertical piece and the lower vertical piece of the packing receiving member, the packing pressing member, the packing and the packing receiving member, and the door body. Fixing member to fix to And comprising, characterized in that.

  By comprising in this way, a packing can be clamped and fixed in the position close | similar to a floor surface with a packing receiving member and a packing pressing member.

  In this invention, the packing pressing member is in contact with the surface of the packing at the center, and a flat fixing piece through which the fixing member passes, and is higher than the height of the head of the fixing member with respect to the flat fixing piece. A pair of presser wing pieces that are raised and have a downwardly inclined surface toward the tip, and the tip of at least one presser wing piece sandwiches the packing between the lower end of the lower vertical piece. It is preferable to be formed.

  With this configuration, it is possible to prevent the head of the fixing member from projecting to the outside by the raised portion of the packing presser member, and the pair of presser wing pieces at the upper and lower portions of the packing presser member at the tip. By setting the inclined surface downward, it is possible to suppress interference with external objects and waste accumulation.

  In the present invention, the packing presser member may have any shape as long as the tip of at least one presser wing piece is formed so that the packing can be sandwiched between the lower end of the lower vertical piece. However, it is preferable that the pair of presser blades of the presser member be formed in a vertically symmetrical shape.

  By configuring in this way, the pair of presser blades of the packing presser member are formed in a vertically symmetrical shape, so there is no fear of attaching the packing presser member upside down when fixing the packing to the door body.

  Further, in the present invention, a cap member is formed on the back surface of both presser blades of the packing presser member in the form of a concave groove with the tip abutting against the packing, and is attached to both ends of the packing presser member in the longitudinal direction. In addition, a fitting leg piece to be fitted in the concave groove is provided, the surface of the cap member and the most protuberant surface of the pressing member are formed on the same plane, and the upper and lower portions and the tip of the cap member are directed toward the tip. It is preferable that the structure is formed in a downward inclined shape. In this case, the packing pressing member can be formed of an aluminum extruded shape, and the cap member can be formed of a synthetic resin material.

  By comprising in this way, while being able to attach a cap member easily to the both ends of a packing pressing member, the cutting angle error of the both ends of a packing pressing member can be hidden with a cap member. Moreover, since the cap member 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. In this case, it is possible to improve the dimensional accuracy of the concave groove of the long packing pressing member by forming the packing pressing member with an extruded aluminum member and forming the cap member with a synthetic resin material. Further, it is possible to easily and reliably join the packing pressing member and the cap member.

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

  (1) Since the packing can be clamped and fixed at a position close to the floor surface by the packing receiving member and the packing pressing member, the packing can be firmly fixed, and the deformation or damage of the packing accompanying the opening / closing of the sliding door Can be suppressed.

  (2) The head of the fixing member can be prevented from protruding to the outside by the raised portion of the packing presser member, and the pair of presser wing pieces on the upper and lower sides of the packing presser member are inclined downward toward the tip. By doing so, interference with an external object can be suppressed.

  (3) By forming the pair of presser wing pieces of the packing presser member in a vertically symmetrical shape, there is no fear of attaching the packing presser member upside down when fixing the packing to the door body. Therefore, the packing work can be facilitated.

  (4) The cap member can be easily attached to both end portions of the packing pressing member, and the cutting angle error at both end portions of the packing pressing member can be hidden by the cap. Moreover, since the cap member 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. In this case, it is possible to improve the dimensional accuracy of the concave groove of the long packing pressing member by forming the packing pressing member with an extruded aluminum member and forming the cap member with a synthetic resin material. Further, it is possible to easily and reliably join the packing pressing member and the cap member.

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 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 packing in this invention. It is the surface perspective view (a) and back surface perspective view (b) of the packing pressing member in this invention. It is the surface perspective view (a) and back surface perspective view (b) of the cap member in this invention. It is the surface perspective view (a) and back surface perspective view (b) of the connection state of the packing pressing member and cap 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 faces 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 it is mainly comprised by the shift | offset | difference packing 9 with which it attaches to the lower end part of the door body 5 and contacts the floor surface F. FIG. 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 comes into contact with the surface of the vertical guide piece 39c so that it can 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.

  A stopper member 50 of the door body 5 is attached to the end of the guide rail 3 (see FIG. 1). Further, a synthetic rubber stopper piece 51 that collides with the stopper member 50 is attached to the door contact surface of the door body 5 (see FIG. 1). In addition, the stopper member 52 of the door body 5 is attached to the floor surface F of the open position of the door body 5 (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, and a packing seat 2b provided around the opening frame 2a of the opening 2 on the upper side and the left and right sides of the door body 5 on the side of the box 1. A cylindrical packing 70 that press-contacts is provided around (see FIG. 2).

  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 28a and the upper surface of the top end of the upper 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.

  On the other hand, a shift packing 9 that contacts the floor surface F is attached to the lower end of the door 5 on the side of the cabinet 1 (see FIGS. 1, 2, and 4 to 6).

  The displacement packing 9 is formed in a strip shape by a synthetic rubber member having flexibility, and as shown in FIGS. 2 to 5, a packing receiving member 80 fixed to the lower end surface of the door body 5 and These are clamped and fixed by a packing presser member 90 fixed to the lower end surface of the door body 5.

  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.

  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. In addition, as shown in FIG. 7, a concave groove 95 is formed in the back surface of both presser wing pieces 93 of the packing pressing member 90 so that the tips thereof are displaced and contact the packing 9.

  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 is attached to an end portion in the longitudinal direction of the packing pressing member 90. In this case, the cap member 100 is provided with a fitting leg piece 101 that fits into the groove 95 of the packing pressing member 90, and on the upper and lower sides and one end side of the flat fixing piece 105 that can contact the door body 5. A raised surface 102 that is flush with the most raised surface 94a of the raised portion 94 of the packing presser member 90 is formed, and an inclined surface 103 that is inclined downward toward the tip of the upper and lower portions and the tip of the cap member 100 is formed. ing. 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. The head 104a of the fixing screw 104 is at a position lower 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 Of course, the same applies.

DESCRIPTION OF SYMBOLS 1 Housing | casing body 2 Entrance / exit opening 3 Guide rail 5 Door body 7 Suspension wheel 9 Displacement packing 80 Packing receiving member 81 First fixing screw 82 Horizontal fixing piece 83 Upper vertical piece 84 Lower vertical piece 90 Packing presser member 91 Second Fixing screw (fixing member)
91a Head 92 Flat fixed piece 93 Presser wing piece 94 Raised portion 94a Most raised surface 95 Concave groove 96 Down slope 100 Cap member 101 Fitting leg piece 102 Raised surface 103 Inclined surface

Claims (5)

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. In a sliding door device comprising a suspension wheel that engages so as to be able to roll, and a packing that is attached to the lower end of the door body in a hanging manner and that contacts a floor surface,
A packing receiving member having a horizontal fixing piece fixed to a lower end surface of the door body, an upper vertical piece attached to a side surface of the box body of the door body, and a lower vertical piece hanging from the lower end of the upper vertical piece; A packing pressing member that sandwiches the packing between the upper vertical piece and the lower vertical piece of the packing receiving member, and a fixing member that passes through the packing pressing member, the packing, and the packing receiving member, and is fixed to the door body. A sliding door device comprising the sliding door device.   2. The sliding door device according to claim 1, wherein the packing pressing member is in contact with a surface of the packing at a central portion thereof, and a flat fixing piece through which the fixing member passes, and the fixing member with respect to the flat fixing piece. A pair of presser wing pieces that protrude higher than the height of the head and have a downwardly inclined surface toward the tip, and at least one of the presser wing pieces has a lower end portion of the lower vertical piece. A sliding door device characterized in that the packing is formed so as to be sandwiched therebetween. The sliding door device according to claim 1 or 2,
A sliding door device, wherein the pair of presser blades of the packing presser member are formed in a vertically symmetrical shape. In the sliding door apparatus in any one of Claims 1 thru | or 3,
On the back surface of both presser wing pieces of the packing presser member, a groove is formed in the through-hole, the tip of which is in contact with the packing, and the cap member attached to both ends in the longitudinal direction of the packing presser member The cap leg and the uppermost raised surface of the pressing member are formed on the same plane, and the upper and lower portions and the tip of the cap member are inclined downward toward the tip. A sliding door device characterized by that. The sliding door device according to claim 4,
A sliding door device, wherein the packing pressing member is formed of an aluminum extruded profile, and the cap member is formed of a synthetic resin material.

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