JP2019122418A - Showcase glass door - Google Patents

Abstract

To provide a showcase glass door facilitating assembling an outer frame to an inner frame, and consequently, excellent in assembling performance of an edge frame.SOLUTION: An outer frame 19 and an inner frame 18 of an edge frame 8 are connected via at least two pairs of frame connection structures 50 provided between both frames 18, 19. As for the connection form of the connection structures 50 when connecting the outer frame 19 to the inner frame 18, any one of a slide connection form and a press-fitted connection form can be selected. With a glass door, an operator who can connect all frames 14, 15, 16, 17 in the press-fitted connection form can rapidly and easily assemble the outer frame 19 to the inner frame 18, and an operator who has difficulty in connection in the press-fitted connection form can easily assemble the outer frame 19 to the inner frame 18 by connecting the parts in the slide connection form.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a glass door for opening and closing a front opening of a closed showcase, and more particularly to a technique for improving the assemblability of an edge frame fixed to four peripheral edges of a door body including a glass plate.

  The frame of the glass door for a showcase according to the present invention is composed of an inner frame made of resin and an outer frame made of metal, and a glass door having such a frame is disclosed in Patent Document 1 It is known. In the door for a showcase of Patent Document 1, a first locking piece and a second locking piece capable of bending and deforming are provided on an inner frame (first frame member), and the outer frame (second frame member) is provided with the first locking piece and the second locking piece. First and second lock receiving portions engageable with the first and second locking pieces are provided. The outer frame can be assembled to the inner frame by engaging the first and second lock receiving portions while bending and deforming the first and second locking pieces.

JP, 2016-59588, A (Drawing 4)

  In the door for a showcase of Patent Document 1, the outer frame can be assembled to the inner frame by a simple press-fit engagement operation which is engaged while being flexed and deformed. However, in order to deform the first and second locking pieces, a relatively large force is required, and in particular, a larger force is required at the long side of the door. Therefore, in the case of a powerless worker, it was difficult to assemble the outer frame to the inner frame at the long side of the door.

  An object of the present invention is to provide a showcase glass door which allows the outer frame to be easily assembled to the inner frame, and is thus excellent in the assemblability of the rim.

  The present invention is directed to a glass door for a showcase having a door main body 7 including a glass plate 10 and an edge frame 8 including upper, lower, left and right frames 14.15.16.17 fixed to the four peripheral edges of the door main body 7. I assume. Each of the frames 14, 15, 16 and 17 includes an inner frame 18 made of a resin strip mounted on the periphery of the door main body 7, and an outer frame 19 made of a metal strip covering the outer surface of the inner frame 18. It consists of The outer frame 19 and the inner frame 18 are connected via at least two sets of frame connection structures 50 provided between the two frames 18 and 19. The frame connection structure 50 is composed of an engagement rib 51 and an engagement groove 52 which engage with each other, one of which is provided on the inner frame 18 or the outer frame 19 and the other on the outer frame 19 or the inner frame 18 There is. As a connection form of the frame connection structure 50 when connecting the outer frame 19 to the inner frame 18, the engagement rib 51 and the engagement groove 52 of one set of frame connection structure 50 are provisionally provided in the longitudinal direction of the inner frame 18. In the engaged state, by rotating the outer frame 19 around the temporary engagement fulcrum 64 where the frame connection structure 50 is temporarily engaged, the engagement rib 51 and the engagement groove 52 of the remaining frame connection structure 50 And an outer frame 19 from one end to the other end of the inner frame 18 in a state in which the engagement rib 51 of each frame connection structure 50 and the engagement groove 52 are engaged with each other. The sliding connection form is characterized in that it is possible to select one of the sliding connection forms in which the engaging rib 51 and the engaging groove 52 of each frame connecting structure 50 are inserted and engaged.

  The inner frame 18 includes an inner frame base 22 directly facing the peripheral end surface of the door main body 7, and a front wall 23 and a rear wall 24 which are continuously provided in front of and behind the inner frame base 22. The outer frame 19 is formed in an L shape by an outer peripheral wall 41 covering the outer peripheral surface of the inner frame 18 and a front wall 42 connected to the front end of the outer peripheral wall 41 and covering the front of the inner frame 18. Engaging grooves 52 are recessedly formed in the front wall 23 and the rear wall 24 of the inner frame 18, and engaging ribs 51 are provided on the inner surfaces of the outer peripheral wall 41 and the front wall 42 of the outer frame 19 to project. Frame connecting structures 50 are provided between the wall 42 and between the rear wall 24 and the outer peripheral wall 41, respectively. The other front wall 42 is joined to either end of the outer wall 19 or 19 of the upper and lower frames 14 or 15 or the outer frame 19 or 19 of the proximal and distal frames 16 or 17 L-shaped connecting portions 59 are respectively notched. When the frame connecting structure 50 is connected in a sliding connection manner to one end of the outer peripheral surface wall 41 of at least one of the outer frames 19 of the outer frames 19 and 19 in which the connecting portion 59 is formed, the engagement rib 51 is an outer peripheral surface wall It is possible to adopt a form in which a clearance notch 60 is provided for avoiding contact with 41.

  Specifically, the door main body 7 is formed in a rectangular shape long in the upper and lower direction, and the connecting portions 59 are respectively cut at both ends of the front wall 42 of the outer frames 19 and 19 of the upper and lower frames 14 and 15 on the short side. A relief notch portion 60 is provided at one end of the outer peripheral surface wall 41 of the outer frame 19 of the lower frame 15.

  The inner frame base 22 is provided with a first base wall 25 in close contact with the peripheral end face of each side of the door main body 7 and a second base wall provided at the front end of the first base wall 25 in a direction approaching the peripheral end face of the door main body 7 The second base wall 26 is formed in a crank shape by a third base wall 27 provided forwardly at the connection end of the second base wall 26. A front wall 23 is provided at the tip of the third base wall 27 in a direction approaching the peripheral end face of the door main body 7 and a rear wall 24 is provided at the tip of the first base wall 25 in a direction away from the peripheral end face of the door main body 7 The front wall 23 and the rear wall 24 may be cantilevered from the inner frame base 22.

  A seal body 30 is provided between the door body 7 and the inner frame 18 to prevent the entry of dew condensation water into the inside of the rim 8. The inner frame 18 may include a pair of front and rear sandwiching walls 28 and 29 sandwiching the front and back of the door main body 7, and the seal body 30 may be integrally provided on each sandwiching wall 28 and 29.

  A dew-proof heater 35 for preventing condensation on the surface of the edge frame 8 is attached to a heater attachment groove 36 provided in the inner frame 18. In a state where the outer frame 19 is connected to the inner frame 18, a part of the dew protection heater 35 can be in contact with the outer frame 19.

  It is preferable that the anti-dew heater 35 be attached to the heater attachment groove 36 provided on the end face of the rear wall 24 on the side away from the circumferential end face of the door main body 7.

  In the glass door for a showcase of the present invention, the outer frame 19 and the inner frame 18 of the edge frame 8 are connected via at least two sets of frame connection structures 50 provided between the two frames 18 and 19. As a connection form of the frame connection structure 50 when connecting the outer frame 19 to the inner frame 18, either the press-fit connection form or the slide connection form is selectable. According to such a glass door, if it is an operator that can be connected in a press-fit connection form in all the frames 14.15.16.17, the outer frame 19 can be assembled quickly and easily on the inner frame 18, If it is a worker who is difficult to connect in the press-fit connection mode, the outer frame 19 can be easily assembled to the inner frame 18 by connecting the portions in the slide connection mode. As described above, according to the present invention, the connection form can be selected and assembled in accordance with the worker who performs the connection work of the outer frame 19 to the inner frame 18. It is possible to assemble more simply, and therefore, it is possible to make a showcase glass door excellent in the assemblability of the rim 8. In addition, it is also possible to connect in a slide connection form in all the frames 14.15.16.17, and it is also possible to reduce the work load on the operator not performing the press-fit engagement.

  The four corners of the edge frame 8 of this type of glass door are shaped at both ends of each outer frame 19 so that no gap is produced in the portion where the outer frames 19 and 19 are butted at right angles. However, in a state in which the three outer frames 19 are connected to the inner frame 18, the remaining end faces of the remaining inner frame 18 are covered with the outer peripheral wall 41 of the outer frame 19 connected to the adjacent inner frames 18. Since the engagement rib 51 and the engagement groove 52 can not be engaged with each other, the outer frame 19 to be connected last can not select the slide connection form. Therefore, as in the present invention, the frame connection structure 50 is slide-connected to one end of the outer peripheral surface wall 41 of at least one of the outer frames 19 of the outer frames 19 and 19 in which the connecting portion 59 to which the outer peripheral surface wall 41 is joined is formed. When the relief notch portion 60 for avoiding the engagement rib 51 coming into contact with the outer peripheral surface wall 41 is provided when connecting in the form, the engagement rib 51 and the engagement groove 52 are formed via the relief notch portion 60. Can be engaged with each other, and the abutment of the outer peripheral surface walls 41 can be avoided by the connecting wall 59. Therefore, by finally connecting the outer frame 19 of the inner frame 18 facing the clearance notch 60, the outer frame 19 to be connected last can be connected to the inner frame 18 in a slide connection configuration.

  Connecting portions 59 are notched on both ends of the front wall 42 of the outer frames 19 and 19 of the upper and lower frames 14 and 15 on the short side, and escaped to one end of the outer peripheral surface wall 41 of the outer frame 19 of the lower frame 15 If the notch 60 is provided, the outer frame 19 of the base end frame 16 or the outer frame 19 of the distal end frame 17 at the long side which requires a strong force by press-fit engagement may be connected last. Either a fitting connection form or a slide connection form can be selected, and a showcase glass door having more excellent assemblability can be obtained.

  The inner frame base 22 is formed into a crank shape by the first base wall 25, the second base wall 26, and the third base wall 27. Further, the front wall 23 is provided at the tip of the third base wall 27 in the direction approaching the peripheral end face of the door main body 7, and the rear wall 24 is provided at the tip of the first base wall 25 in the direction away from the peripheral end face of the door main body 7 The front wall 23 and the rear wall 24 are cantilevered from the inner frame base 22. According to such an inner frame 18, in the press-fit connection mode, the front wall 23 and the rear wall 24 provided with the frame connection structure 50 can be largely bent and deformed, thereby reducing the force necessary for press-fit engagement. be able to. In the slide connection mode, when the outer frame 19 is inserted into and engaged with the inner frame 18, the front wall 23 and the rear wall 24 are formed so as to form a gap between the engagement rib 51 and the engagement groove 52. By slightly bending and deforming, it is possible to reduce the frictional resistance due to the sliding contact between the both 51 and 52, and the outer frame 19 can be smoothly engaged in the insertion engagement even near the engagement end where the frictional resistance is maximum. . As described above, by projecting the front wall 23 and the rear wall 24 in a cantilevered manner, assembly of the outer frame 19 to the inner frame 18 can be simplified in any of the press-fit connection mode and the slide connection mode.

  The inner frame 18 includes a pair of front and rear sandwiching walls 28 and 29 sandwiching the front and back of the door main body 7, and integrally integrates a sealing body 30 for preventing intrusion of dew condensation water into the rim 8 inside each sandwiching wall 28 and 29. Provided in According to this, compared with the case where the seal body 30 is provided as a separate member, the number of parts at the time of assembling the rim 8 can be reduced, thus reducing the time and effort of the assembling operation and assembling the rim 8 It is possible to further improve the

  If a dew-proof heater 35 for preventing condensation on the surface of the rim 8 is attached to the heater mounting groove 36 provided on the inner frame 18, the lead wire for supplying power to the dew-proof heater 35 should be fixed on the inner frame 18 side. As a result, the lead wire extending from the dew protection heater 35 does not get in the way when assembling the outer frame 19, and the outer frame 19 can be more easily assembled to the inner frame 18. Conversely, when the dew proof heater 35 is attached to the outer frame 19, the outer frame 19 needs to be attached to the inner frame 18 while holding the lead wire, which requires time and labor. In addition, in the state where the outer frame 19 is connected to the inner frame 18, if part of the dew protection heater 35 is in contact with the outer frame 19, the heat of the dew protection heater 35 can be conducted to the outer frame 19 reliably. The occurrence of condensation on the surface of the rim 8 can be well prevented.

  When the anti-dew heater 35 is attached to the heater mounting groove 36 provided on the end face of the rear wall 24 on the side away from the peripheral end face of the door body 7, the anti-dew heater 35 can be disposed at a position away from the door body 7. Thereby, it can be avoided that the heat of the dew proof heater 35 is conducted to the door main body 7 to cause the temperature inside the refrigerator to rise.

It is a cross-sectional top view which shows the base end frame part of the rim in the glass door for showcases which concerns on this invention. It is a front view of the showcase which applied the glass door of this invention. It is sectional drawing for demonstrating the cross-sectional shape of an upper outer frame, a lower outer frame, a base end outer frame, a tip outer frame, and an inner frame. It is a disassembled front view of a glass door. It is a cross-sectional top view which shows the tip-frame part of an edge frame. It is a vertical side view which shows the upper frame part of an edge frame. It is a vertical front view which shows the fastening part of a rim. It is explanatory drawing which shows the method to connect a base end frame part in a press-fit connection form. It is explanatory drawing which shows an example of the assembly | attachment order at the time of selecting a pressing connection form. It is explanatory drawing which shows an example of the assembly | attachment order at the time of selecting a slide connection form. It is explanatory drawing which shows an example of the assembly | attachment order at the time of selecting both a pressing connection form and a slide connection form.

(Example) FIGS. 1-11 shows the Example which applied the glass door for showcases which concerns on this invention to a closed-type showcase. The front and rear, right and left, and upper and lower sides in this embodiment follow the display of front and rear, right and left, and upper and lower written in the vicinity of the crossing arrows shown in FIG. 1, FIG. 2, FIG. In FIG. 2, the showcase includes a case main body 1 formed of an insulating box having a front opening. The inside of the case body 1 is a display room 2, and the front of the display room 2 is opened and closed by a pair of left and right glass doors 3 and 3 having a double door structure. Each glass door 3 is supported so as to be able to rock back and forth by rocking shafts 4 and 4 provided on the upper and lower sides of the rocking base end side.

  A pair of glass doors 3 and 3 is a structure of right-and-left selfishness, and, below, the glass door 3 arrange | positioned on the left side in the plain view of a showcase is demonstrated. The glass door 3 includes a door main body 7, an edge frame 8 fixed to four peripheral edges of the door main body 7, and a handle 9 for opening and closing the glass door 3. The door body 7 is made of double glazing in which three rectangular glass plates 10 long in the upper and lower sides are integrally joined via the spacer 11 (see FIG. 3), and by using the double glazing The heat insulation of the glass door 3 can be improved. The edge frame 8 includes an upper frame 14 and a lower frame 15 fixed to the upper and lower sides of the door body 7, a base end frame 16 fixed to the swing base end side, and a tip frame 17 fixed to the swing tip end side. It consists of In the glass door 3 disposed on the right side of the showcase, the right frame is the base end frame 16 and the left frame is the tip end frame 17.

  As shown in FIG. 1, FIG. 3 and FIG. 4, the upper and lower, base end, and tip frames 14 to 17 respectively have an inner frame 18 mounted on the periphery of the door body 7 and an outer surface of the inner frame 18 It is comprised with the outer frame 19 to cover. The inner frame 18 is made of resin strip material, and is configured of the same strip material in each of the frames 14-17. The outer frame 19 is made of aluminum (metal) strip material, and the upper outer frame 19A (outer frame 19) applied to the upper frame 14, the lower outer frame 19B applied to the lower frame 15, (outer frame 19) There are four types, a base end outer frame 19C (outer frame 19) applied to the end frame 16, and a tip outer frame 19D (outer frame 19) applied to the tip end frame 17. The upper outer frame 19A and the lower outer frame 19B are made of the same strip material.

  The inner frame 18 includes an inner frame base 22 which faces the peripheral end face of each side of the door main body 7, and a front wall 23 and a rear wall 24 which are continuously provided in front of and behind the inner frame base 22. The inner frame base 22 is provided with a first base wall 25 in close contact with the peripheral end face of each side of the door main body 7 and a second base wall provided at the front end of the first base wall 25 away from the peripheral end face of the door main body 7 The second base wall 26 is formed in a crank shape by a third base wall 27 provided forward from the connecting end of the second base wall 26. The front wall 23 is provided at the front end (front end) of the third base wall 27 in a direction approaching the peripheral end face of the door main body 7, and the rear wall 24 is provided at the rear end (front end) of the first base wall 25. It is provided in the direction away from the peripheral end face. Thus, each of the front wall 23 and the rear wall 24 is cantilevered from the inner frame base 22. The connection between the third base wall 27 and the front wall 23 is rounded.

  When the inner frame 18 is attached to the door main body 7, the rear half portion of the front end face of the front wall 23 is in close contact with the peripheral end face of the door main body 7, and the remaining front side portion is the storage outside surface of the door main body 7. It projects more to the front side. Further, the rear end of the first base wall 25 projects rearward from the inner surface of the door body 7. In each of the front side projecting portion of the front wall 23 and the rear side projecting portion of the first base wall 25, a pair of front clamping wall 28 and rear clamping wall 29 for clamping the front and back of the door main body 7 is the door main body 7 side. It is projected towards the

  A seal body 30 is provided between the door body 7 and the inner frame 18 to prevent the entry of dew condensation water into the inside of the rim 8. Specifically, the front sandwiching wall 28 doubles as the seal body 30 on the front side, and on the front face of the rear sandwiching wall 29, the rear seal body 30 formed of two parallel rib-like projections is provided. The inner frame 18, the front sandwiching wall 28, and the rear seal 30 are integrally formed of different resin materials by a two-color extrusion molding method. In this embodiment, the seal body 30 is made of relatively soft ABS resin, and the remaining inner frame 18 is made of relatively hard ABS resin. As described above, when the seal body 30 is integrally provided on each sandwiching wall 28/29 of the inner frame 18, the number of parts when assembling the frame 8 is reduced compared to the case where the seal body 30 is provided as a separate member. As a result, it is possible to reduce the time for assembling work and to improve the assemblability of the rim 8. As for the inner frame 18 in the mounted state, the front clamping frame 28 (seal body 30) and the seal body 30 of the rear clamping wall 29 are in close contact with the front and back of the door main body 7 (see FIG. 1).

  A packing attachment groove 34 is provided in the middle of the rear wall 24 in a state of being opened rearward, and the magnet packing 33 is press-fit and attached to the groove 34. The magnet packing 33 seals between the case body 1 and the glass door 3 to shut off cold air and outside air, and is provided to hold the glass door 3 in the closed position. A heater mounting groove 36 for mounting a dew-proof heater 35 for preventing dew condensation on the edge frame 8 is provided at the end (a tip end) of the rear wall 24 in a state of being opened outward. The dew-proof heater 35 is composed of a flexible cord heater coated with silicone rubber, and the length dimension of the heater 35 is set to be substantially the same length as the inner frame 18. The dew protection heater 35 is press fitted to the heater mounting groove 36. When the outer frame 19 is mounted on the inner frame 18, a part of the circumferential surface of the dew prevention heater 35 is in contact with the outer frame 19, whereby the outer frame 19 and the dew prevention heater 35 are in line contact In contact with the

As described above, when the dew-proof heater 35 is attached to the heater attachment groove 36 provided in the inner frame 18, the lead wire for supplying power to the dew-proof heater 35 can be disposed on the inner frame 18 side. At the time of assembling of 19, the lead wire extending from the dew proof heater 35 does not get in the way, and the outer frame 19 can be more easily assembled to the inner frame 18. Conversely, when the dew proof heater 35 is attached to the outer frame 19, the outer frame 19 needs to be attached to the inner frame 18 while holding the lead wire, which requires time and labor. In addition, in the state where the outer frame 19 is connected to the inner frame 18, if part of the dew protection heater 35 is in contact with the outer frame 19, the heat of the dew protection heater 35 can be conducted to the outer frame 19 reliably. The occurrence of condensation on the surface of the rim 8 can be well prevented.
Further, the rear wall 24 of the inner frame 18 is continuously provided from the rear end of the inner frame base 22 toward the outer peripheral wall 41 of the outer frame 19, and the dew-proof heater 35 is attached to the heater mounting groove 36 provided at the end Then, the dew protection heater 35 can be disposed at a position away from the door main body 7. Thereby, it can be avoided that the heat of the dew proof heater 35 is conducted to the door main body 7 to cause the temperature inside the refrigerator to rise.

  The groove wall 37 on the front side of the heater mounting groove 36 is formed of a thin wall so as to be elastically deformable. Thus, when one groove wall 37 forming the heater mounting groove 36 is formed so as to be elastically deformable, the groove wall 37 is elastically deformed at the time of press fitting of the anti-dew heater 35 to the heater mounting portion 36 to prevent dew Since the heater 35 can be easily mounted, the time and labor for assembling the rim 8 can be reduced.

  As shown in FIG. 3, the upper outer frame 19A, the lower outer frame 19B, the base outer frame 19C, and the tip outer frame 19D have the same basic configuration, and an outer peripheral surface wall 41 covering the outer peripheral surface of the inner frame 18; An L-shape is formed by a front wall 42 which is continuous with the front end of the outer peripheral wall 41 and covers the front of the inner frame 18. In each of the outer frames 19A, 19B, 19C and 19D, the connection between the outer peripheral wall 41 and the front wall 42 is rounded. A fastening wall 43 is provided on the inner surface of the outer peripheral surface wall 41 of the upper and lower outer frames 19A and 19B so as to protrude in a direction perpendicular to the outer peripheral surface wall 41. A boss 44 for screwing in is integrally provided. On the outer peripheral surface wall 41 of the base end outer frame 19C and the distal end outer frame 19D, a restriction wall 45 is provided in a protruding manner in a direction perpendicular to the outer peripheral surface wall 41 on the inner surface of the middle portion. Furthermore, a seat wall 46 serving as a fastening seat when fastening and fixing the handle 9 is provided at the tip of the restriction wall 45 of the tip outer frame 19D. The restriction wall 45 engages with the engagement protrusion 47 at the outer end of the second base wall 26 in a state where the outer frame 19 is mounted to the inner frame 18. As a result, the regulating wall 45 and the outer circumferential wall 41 cooperate with each other to regulate the displacement of the outer frame 19 in the front-rear direction.

  As shown in FIG. 1, FIG. 3, FIG. 5, and FIG. 6, the upper outer frame 19A, the lower outer frame 19B, the base outer frame 19C, and the tip outer frame 19D (outer frame 19) It is connected to the inner frame 18 by two sets of frame connection structures 50 provided between the outer frames 19A, 19B, 19C and 19D. The frame connecting structure 50 is composed of an engaging rib 51 and an engaging groove 52 which engage with each other, the engaging rib 51 is provided on the outer frame 19, and the engaging groove 52 is provided on the inner frame 18. There is. The engagement rib 51 may be provided on the inner frame 18 and the engagement groove 52 may be provided on the outer frame 19.

  The engagement rib 51 is provided on the front wall 42 and the outer peripheral wall 41 respectively. The engagement rib 51 on the front wall 42 side is formed in the shape of one, and is protruded rearward from the inner surface of the middle portion of the wall 42. Further, the engagement rib 51 on the outer peripheral surface wall 41 side is formed in an L shape, and is protruded from the rear end inner surface of the outer peripheral surface wall 41 in a direction approaching the peripheral end surface of the door main body 7. The engagement grooves 52 are provided in the front wall 23 and the rear wall 24 respectively. The engagement groove 52 on the front wall 23 side is recessed so as to open forward on the tip outer surface of the front wall 23, and the groove inner surface on the side where the two tips of the two engagement ribs 51 meet is V-shaped. It protrudes. Further, the engagement groove 52 on the rear wall 24 side is formed in a concave shape so as to open rearward on the tip outer surface of the rear wall 24. The engagement groove 52 of the rear wall 24 is such that the groove wall on the tip end side of the rear wall 24 is shallower in one step, and in the state where the outer frame 19 is connected to the inner frame 18. It is formed to be flush with the rear surface (see FIG. 1). In FIG. 1 and FIG. 5, reference numeral 53 is a regulating rib which regulates the shift movement of the base end frame 16 and the distal end frame 17 in the lateral direction in cooperation with the engagement rib 51 on the front side.

  In the frame connection structure 50 configured as described above, the frame connection structure 50 is temporarily engaged with the engagement rib 51 and the engagement groove 52 of one frame connection structure 50 in the longitudinal direction of the inner frame 18. When the outer frame 19 is rotated around the temporary engagement fulcrum 64 in which 50 is temporarily engaged, the engagement rib 51 of the remaining frame connection structure 50 and the engagement groove 52 are press-fitted and engaged. The outer frame 19 can be connected to the inner frame 18 in a connection mode. Further, by sliding the outer frame 19 from one end to the other end of the inner frame 18 in a state in which the engagement rib 51 and the engagement groove 52 of each frame connection structure 50 are engaged with each other, The outer frame 19 can be connected to the inner frame 18 in a slide connection configuration in which the engagement rib 51 and the engagement groove 52 are inserted and engaged. As described above, as the connection form of the frame connection structure 50 when connecting the outer frame 19 to the inner frame 18, either the press-fit connection structure or the slide connection form can be selected. There is. Specific connection procedures will be described later.

  The outer frames 19 mounted on the inner frames 18 are fastened and fixed to each other by screws 56. Specifically, as shown in FIG. 4 and FIG. 7, screws are inserted at positions corresponding to the bosses 44 of the upper and lower frames 14 and 15 at the upper and lower ends of the outer peripheral wall 41 of the base end frame 16 and the distal end frame 17. The screw holes 57 are provided, and after the outer frame 19 is connected to the inner frame 18, the upper and outer frames 19A, the lower outer frame 19B, and the base are inserted by inserting the screws 56 into the screw holes 57 and screwing them into the bosses 44. The end outer frame 19C and the tip outer frame 19D are fastened and fixed at the butt portion, and the edge frame 8 is inseparably fixed to the door main body 7.

  Here, the assembly of the rim 8 to the door body 7 will be described. First, the inner frames 18 of the frames 14 to 17 are temporarily attached to the four peripheral edges of the door main body 7. The inner frame 18 of each of the frames 14 to 17 is obtained by cutting a strip into a predetermined size. As shown in FIG. 4, the left and right dimensions of the inner frame 18 corresponding to the upper and lower frames 14 and 15 are formed slightly larger than the left and right dimensions of the door main body 7 and correspond to the frames 16 and 17 at the proximal end and the distal end. The upper and lower dimensions of the inner frame 18 are slightly larger than the upper and lower dimensions of the door body 7. The inner frame 18 can be temporarily mounted by inserting it into the four peripheral edges so as to hold the front and back of the door main body 7 by the front and rear holding frames 28 and 29. At this time, cut portions 58 cut obliquely are provided at both ends of the front and rear holding frames 28 and 29 so that the butt parts of the four corners of the inner frame 18 temporarily mounted in a frame shape match without a gap. The cut-out portion 58 may be a cut-out portion 58 in which either one of the butt portions is cut into an L shape. After temporarily mounting the inner frame 18, the dew-proof heater 35 is press-fitted in the heater mounting groove 36.

  Each outer frame 19A, 19B, 19C, 19D is obtained by cutting a strip material into a predetermined size, and is pressed so that the butt parts of the outer frames 19A, 19B, 19C, 19D match at the time of assembly. It is applied and shaped. As shown in FIG. 4, the upper outer frame 19A and the lower outer frame 19B are L-shaped connecting portions 59 to which the front end wall 16 of the base end frame 16 and the front end frame 17 is joined at the left and right ends of the front wall 42, respectively. The notch is formed. Furthermore, when the outer frame 19 is connected to the inner frame 18 in a sliding connection manner at the right end portion of the outer peripheral surface wall 41 in the lower outer frame 19B of the lower frame 15, the pair of engagement ribs 51 abuts The escape notches 60 to be avoided are respectively notched at positions corresponding to the pair of engagement ribs 51. On the outer peripheral surface wall 41 near the escape notch 60, an escape notch 61 for preventing the restriction wall 45, the seat wall 46, and the restriction rib 53 from coming into contact is cut at a position corresponding to each of the members. It is notched. The base end outer frame 19C and the tip end outer frame 19D are restricted wall 45, a seat wall 46, a pair of engagement ribs 51, in order to avoid interference with the outer peripheral wall 41 of the upper outer frame 19A and the lower outer frame 19B. The restriction rib 53 is cut out by the thickness dimension of the outer peripheral wall 41. Screw holes 57 for screws 56 are opened at the upper and lower ends of both outer frames 19B and 19C. In addition, the code | symbol 62 is a mounting hole for bearing bodies with which the bearing body (not shown) which pivotally supports the rocking shaft 4 is mounted.

  As described above, in the present embodiment, since the outer frame 19 can be assembled to the inner frame 18 in either the press-fit connection mode or the slide connection mode, the worker can use either of the connection modes. Can be selected to carry out the work of assembling the rim 8. First, a method of connecting the outer frame 19 to the inner frame 18 in the press-fit connection mode will be described. As shown in FIG. 8, the engagement rib 51 is engaged with the engagement groove 52 of the rear side frame connection structure 50 so as to insert the engagement rib 51 and the engagement groove 52 in the longitudinal direction of the inner frame 18. Make a temporary engagement. With the frame connection structure 50 temporarily engaged in this state as the temporary engagement fulcrum 64, the outer frame 19 is rotated about the temporary engagement fulcrum 64 (clockwise in FIG. 8 for the tip outer frame 19D) The engagement rib 51 of the front side frame connection structure 50 and the engagement groove 52 are press-fit engaged with each other. At this time, since the front wall 23 and the rear wall 24 which are provided in a cantilevered manner from the inner frame base 22 can be largely bent and deformed, it is possible to reduce the force necessary for the press-fit engagement.

  An example of an assembly procedure at the time of connecting all the outer frames 19A to 19D in the press-fit connection mode will be described with reference to FIG. Here, first, the distal end outer frame 19D is connected (Fig. 9 (a)), then the proximal end outer frame 19C is connected (Fig. 9 (b)), and then the upper outer frame 19A is connected (Fig. c)) Finally, the lower outer frame 19B is connected (Fig. 9 (d)), and the rim 8 is assembled. When all the outer frames 19A to 19D are connected in a press-fit connection mode, the connection order is not particularly limited, and the frame 8 can be assembled in any order.

  Then, the connection method of the outer frame 19 with respect to the inner frame 18 by a slide connection form is demonstrated. When the upper and outer frames 19A are connected to the inner frame 18 of the upper frame 14, as shown in FIG. 10A, the left end of the upper and outer frames 19A is made to face the right end of the inner frame 18 to connect two sets of frames. After aligning the engagement rib 51 of the structure 50 with the engagement groove 52 so as to engage with each other, the upper outer frame 19A is slid toward the left side, and the engagement rib 51 is inserted into the engagement groove 52 and engaged The upper outer frame 19A may be slid from the right end (engagement start end) to the left end (engagement end) while being fixed. Also in the other lower outer frame 19B, the base end outer frame 19C, and the tip outer frame 19D, the end portions of the outer frames 19B, 19C, and 19D are directly opposed to the end portions of the inner frame 18, and the engagement rib 51 is engaged. The groove 52 may be aligned and then slid from the engagement tip toward the engagement end.

  An example of an assembly procedure at the time of connecting all the outer frames 19A to 19D in a slide connection mode will be described with reference to FIG. Here, first, the upper outer frame 19A is connected (FIG. 10 (a)), then the base outer frame 19C is connected (FIG. 10 (b)), and then the lower outer frame 19B is connected (FIG. c)) Finally, the tip outer frame 19D is connected (FIG. 10 (d)), and the rim 8 is assembled. The order of connection of the upper outer frame 19A and the lower outer frame 19B may be reversed, and the proximal outer frame 19C may be connected before the connection of the upper outer frame 19A and the lower outer frame 19B.

  At the time of connection by the slide connection form, the frame connection structure 50 is provided on the front wall 23 and the rear wall 24 which are separated from each other in the front and back direction, and the outer frame 19 is a simple L shape configured by the outer peripheral wall 41 and the front wall 42 Since it is formed in a shape, the two sets of frame connection structures 50 can be easily visually observed, and therefore, the alignment between the engagement rib 51 and the engagement groove 52 at the start of the insertion engagement can be easily performed. Further, since each of the front wall 23 and the rear wall 24 is cantilevered from the inner frame base 22, the front wall 23 and the rear are arranged so as to make a gap between the engagement rib 51 and the engagement groove 52. By slightly bending and deforming the wall 24, it is possible to reduce the frictional resistance force caused by the sliding contact between the both 51 and 52. Therefore, the insertion engagement of the upper outer frame 19A (outer frame 19) can be smoothly performed even in the vicinity of the engagement end where the frictional resistance is maximum.

  In the present embodiment, in the case where all the outer frames 19A to 19D are connected in a slide connection mode, it is necessary to connect the tip outer frame 19D at the end. This is because the relief notches 60 and 61 are formed at the right end of the outer peripheral surface wall 41 of the lower outer frame 19B. For example, in a state in which the outer frames 19A, 19B and 19D of the three sides of the upper, lower and front ends are connected to the inner frame 18, the upper and lower frames 14 ··· The engagement rib 51 and the engagement groove 52 can not be engaged with each other because they are covered by the outer peripheral wall 41 of the upper and lower outer frames 19A and 19B connected to the inner frames 18 of 15. However, by connecting the tip outer frame 19D at the end, the engagement rib 51 and the engagement groove 52 can be engaged with each other without problems through the relief notch portions 60 and 61. In the case where the notches 60 and 61 are notched on both ends of the outer peripheral surface wall 41 of the lower outer frame 19B, either the base end outer frame 19C or the tip outer frame 19D may be connected last. The relief notches 60 and 61 can be formed notches at both ends of the outer peripheral surface wall 41 of the upper outer frame 19A.

  Subsequently, the base end outer frame 19C and the tip outer frame 19D on the long side, which require relatively strong force for press-fit engagement, are connected by slide connection, and the remaining upper outer frame 19A and lower outer frame 19B are press-fit. An example of an assembly procedure at the time of connecting in a connection form will be described. Here, first, the tip outer frame 19C is connected in a slide connection form (FIG. 11 (a)), then the upper outer frame 19A is connected in a press-fit connection form (FIG. 11 (b)), and then the lower outer frame 19B was connected in a press-fit connection form (FIG. 11 (c)), and finally, a tip outer frame 19D was connected in a slide connection form (FIG. 11 (d)), and the edge frame 8 was assembled. The order of connection of the upper outer frame 19A and the lower outer frame 19B may be reversed, and the proximal outer frame 19C may be connected before the connection of the upper outer frame 19A and the lower outer frame 19B. The reason for connecting the tip outer frame 19D at the end is the same as that described above and thus will not be described.

  After assembling the edge frame 8 to the door main body 7 according to any of the above procedures, screw the four screws 56 and fasten and fix the outer frames 19A, 19B, 19C and 19D to each other. Assembly of 8 is complete. Thereafter, the upper and lower bearing bodies for pivotally supporting the swing shaft 4, the handle 9, and the magnet packing 33 are fixed, and the assembly of the glass door 3 is completed.

  As described above, according to the glass door for a showcase according to the present embodiment, as the connection form of the frame connection structure 50 when connecting the outer frame 19 to the inner frame 18, a press-fit connection form and a slide connection are provided. It was configured to be selectable either with the form. According to such a glass door, if it is an operator that can be connected in a press-fit connection form in all the frames 14.15.16.17, the outer frame 19 can be assembled quickly and easily on the inner frame 18, If it is a worker who is difficult to connect in the press-fit connection mode, the outer frame 19 can be easily assembled to the inner frame 18 by connecting the portions in the slide connection mode. As described above, according to the present embodiment, the outer frame 19 can be assembled by selecting the connection form suitable for the worker who performs the connection work of the outer frame 19 with the inner frame 18. It is possible to assemble easily by 18 and, therefore, it is possible to provide a showcase glass door excellent in the assemblability of the rim 8.

  The connecting portion 59 can be formed on the proximal end outer frame 19C and the distal end outer frame 19D other than the above embodiment. In this case, the notch portions 60 and 61 are formed in the base end outer frame 19C or the tip outer frame 19D. The assembly order of the outer frame 19 in the press-fit connection mode and the slide connection mode is not limited to the order described in the above embodiment. The inner frame base 22 is formed in a crank shape, but both walls 25 and 27 are formed in a straight line so that the first base wall 25 and the third base wall 27 are in close contact with the peripheral end face at each side of the door body 7 The inner frame 18 can also be formed to have an E-shaped cross section. The door main body 7 does not have to be a laminated glass of three layers, and can be composed of a laminated glass of two or four or more layers.

DESCRIPTION OF SYMBOLS 7 door main body 8 frame 10 glass plate 14 upper frame 15 lower frame 16 base end frame 17 tip frame 18 inner frame 19 outer frame 19A upper outer frame 19B lower outer frame 22 inner frame base 23 front wall 24 rear wall 25 1st base Wall 26 second base wall 27 third base wall 28 front sandwiching wall 29 rear sandwiching wall 30 seal body 35 dew protection heater 36 heater mounting groove 41 outer peripheral wall 42 front wall 50 frame connecting structure 51 engaging rib 52 engaging groove 59 connecting Part 60 Relief notch 64 Temporary engagement fulcrum

Claims (7)

A door main body (7) including a glass plate (10), an upper frame (14) fixed to four peripheral edges of the door main body (7), a lower frame (15), a base end frame (16), and a tip frame (17) A swingable showcase glass door having an edge frame (8) comprising
Each frame (14,15,16,17) is an inner frame (18) made of a resin strip attached to the periphery of the door body (7) and a metal covering the outer surface of the inner frame (18). Composed of an outer frame (19) made of strip material,
The outer frame (19) and the inner frame (18) are connected via at least two pairs of frame connection structures (50) provided between the two frames (18, 19),
The frame connection structure (50) is composed of an engagement rib (51) and an engagement groove (52) engaged with each other, one of which is an inner frame (18) or the outer frame (19), and the other is an outer Provided in the frame (19) or the inner frame (18),
As a connection form of the frame connection structure (50) when connecting the outer frame (19) to the inner frame (18),
With the engagement rib (51) and the engagement groove (52) of one set of frame connection structure (50) temporarily engaged in the longitudinal direction of the inner frame (18), the frame connection structure (50) is temporarily By rotating the outer frame (19) around the engaged temporary engagement fulcrum (64), the engagement rib (51) and the engagement groove (52) of the remaining frame connection structure (50) A press-fit connection form to be engaged and engaged;
Slide the outer frame (19) from one end of the inner frame (18) to the other end with the engagement rib (51) and the engagement groove (52) of each frame connection structure (50) engaged with each other Thus, one of the slide connection forms in which the engagement rib (51) and the engagement groove (52) of each frame connection structure (50) are inserted and engaged can be selected. Glass door for showcases. The inner frame (18) has an inner frame base (22) facing the peripheral end face of the door main body (7), and a front wall (23) and a rear wall (24) connected respectively to the front and back of the inner frame base (22). ) And,
The outer frame (19) has an outer peripheral wall (41) covering the outer peripheral surface of the inner frame (18), and a front wall (42) continuously connected to the front end of the outer peripheral wall (41) to cover the front of the inner frame (18) And are formed in an L shape,
Engaging grooves (52) are recessed in the front wall (23) and rear wall (24) of the inner frame (18), and engaged with the inner surface of the outer wall (41) of the outer frame (19) and the front wall (42) The coupling rib (51) is provided so that a frame connection structure (50) is provided between the front wall (23) and the front wall (42) and between the rear wall (24) and the outer peripheral wall (41). Each is provided,
At either end of the front wall (42) of the outer frame (19, 19) of the upper and lower frames (14, 15) or the outer frame (19, 19) of the proximal and distal frames (16, 17) , And an L-shaped connecting portion (59) to which the other front wall (42) is joined is notched,
The frame connection structure (50) is connected in a slide connection manner to one end of the outer peripheral surface wall (41) of at least one of the outer frames (19) of the outer frames (19, 19) in which the connection portion (59) is formed The glass door for a showcase according to claim 1, wherein a relief notch (60) is provided in order to prevent the engagement rib (51) from coming into contact with the outer peripheral wall (41). The door main body (7) is formed in the shape of a long rectangle at the top and bottom,
Connecting portions (59) are notched at both ends of the front wall (42) of the outer frame (19A, 19B) of the upper and lower frames (14, 15) on the short side,
The glass door for showcase according to claim 2, wherein a relief notch (60) is provided at one end of the outer peripheral surface wall (41) of the outer frame (19B) of the lower frame (15). The inner frame base (22) has a first base wall (25) in close contact with the peripheral end face of each side of the door body (7), and a peripheral end face of the door body (7) at the front end of the first base wall (25). The second base wall (26) provided in the direction of approaching and the third base wall (27) provided forward on the connection end of the second base wall (26) in a crank shape;
A front wall (23) is provided at the end of the third base wall (27) in a direction toward the peripheral end face of the door body (7), and from the peripheral end face of the door body (7) at the end of the first base wall (25) A rear wall (24) is provided in a direction away from each other, and each of the front wall (23) and the rear wall (24) is cantilevered from the inner frame base (22). Showcase glass door described. Between the door body (7) and the inner frame (18), a seal body (30) is provided, which prevents the entry of condensation water into the inside of the rim (8),
The inner frame (18) has a pair of front and rear sandwiching walls (28, 29) sandwiching the front and back of the door body (7), and the seal body (30) is integrally provided on each sandwiching wall (28, 29) The glass door for showcases according to any one of claims 2 to 4. In the heater mounting groove (36) provided in the inner frame (18), a dew-proof heater (35) for preventing condensation on the surface of the edge frame (8) is attached and the outer frame (19) is connected to the inner frame (18) The glass door for showcases according to any one of claims 2 to 5, wherein a part of the dew prevention heater (35) is in contact with the outer frame (19) in a state where   The show according to claim 6, wherein a dew protection heater (35) is mounted in a heater mounting groove (36) provided on an end surface of the rear wall (24) on the side away from the peripheral end surface of the door body (7). Glass door for case.

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