JP2005068875A - Frame structure of door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a looseness of a transparent body which is fitted into a frame member. <P>SOLUTION: An outer frame 42 is composed of a frame member 44 wherein a recessed groove 46 for allowing the insertion of a side part of double glazing 12 is formed, and a U-shaped cross-section corner joint 50 which has a first side part 52 and a second side part 54. The frame member 44 and the corner joint 50 are formed as follows: when the joint 50 is inserted into the frame member 44, the first side part 52 abuts on a front wall part 46a, constituting the recessed groove 46, from the outside; and a back wall surface 44b of the frame member 44 and the second side part 54 face each other in a separated state. The frame member 44 and the corner joint 50 are fastened together with a screw 30, so that the first side part 52 can be displaced so as to push the front wall part 46a; and the front wall part 46a is pushed and deformed, so that the side part of the double glazing 12 inserted into the recessed groove 46 can be held in such a manner as to be sandwiched in a pushed state between both the wall parts 46a and 46b. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a door frame structure in a storage such as a refrigerator or a showcase, and more specifically, a plurality of frame members that hold the outer peripheral edge of a transparent body such as glass are connected to each other by a joint. This relates to the door frame structure.

  Articles housed inside by using a glass door 10 as shown in FIG. 4 as a door for closing an article outlet as a storage for refrigerated / frozen or refrigerated and preserved articles such as food and beverages. Showcases that can be seen through are installed at shopping centers and convenience stores. As shown in FIG. 4, the glass door 10 includes a rectangular multilayer glass (transparent body) 12 and an outer frame 20 that protects the outer peripheral edge of the multilayer glass 12. Is provided with a handle 32 serving as a gripping means used when the glass door 10 is opened and closed. And the said glass door 10 is rotatably attached with respect to a showcase main body via the hinge member which is not shown arrange | positioned at the upper part and the lower part, and is comprised so that the said goods insertion / exiting opening may be closed so that opening and closing is possible. Is done.

  For example, as shown in FIG. 5, the multilayer glass 12 is formed by overlapping two glass plates 14 and 14 with a spacer 16 interposed therebetween. Specifically, the multilayer glass 12 forms an air layer 17 between the opposing glass plates 14 and 14 by the spacer 16 interposed between the pair of glass plates 14 and 14, and has low thermal conductivity. Heat insulation is improved by suppressing heat exchange inside and outside with air. A sealing material 18 is attached to the peripheral edge of the multilayer glass 12 to seal the air layer 17.

  Further, as shown in FIG. 6, the outer frame 20 disposed on the outer peripheral edge of the multilayer glass 12 includes a plurality of frame members 22 disposed corresponding to the respective sides of the multilayer glass 12, and The frame member 22 is composed of a plurality of corner joints (joints) 28 that connect each other (see, for example, Patent Document 1). The frame member 22 is a hollow cylindrical body having both ends opened, and is set to a size corresponding to each side portion of the multilayer glass 12 and is opposed to the side portion of the multilayer glass 12. A concave groove 24 is formed in the side surface along the longitudinal direction. The width dimension of the concave groove 24 is set to a dimension that allows the insertion of the multilayer glass 12. The corner joint 28 is formed in a U-shaped cross-section with a dimension that can be inserted from the opening end of the frame member 22, and has an L-shaped outer shape. It comes to face the direction.

Then, as shown in FIG. 7, the frame members 22 are respectively attached to the left and right side portions of the multilayer glass 12 with the side portions inserted into the recessed grooves 24, and the upper and lower frame members 22 are attached. One end of the corner joints 28 and 28 is inserted in advance into the left and right, and the other end of the corner joints 28 and 28 are inserted into the left and right frame members 22 and 22 in the vertical direction so that the outer peripheral edge of the multilayer glass 12 is a concave The frame member 22 is held by the four frame members 22 in a state of being fitted to the member 24. Thereafter, each corner joint 28 and the corresponding frame member 22 are fixed with screws 30, so that each frame member 22, 22 is connected via the corner joint 28, and the multilayer glass 12 is attached to the outer frame 20. (See FIG. 5). A pair of protrusions 26 and 26 are provided on the bottom surface of the concave groove 24 (the surface facing the outer peripheral surface of the multilayer glass 12), and the outer peripheral surface of the multilayer glass 12 held by the frame member 22 The projecting pieces 26 and 26 elastically contact each other and function to restrict movement in the left-right direction or the up-down direction (see, for example, Patent Document 2).
JP-A-8-60946 Utility Model Registration No. 2602325

  By the way, the width dimension of the concave groove 24 is set to be slightly larger than the thickness dimension of the multilayer glass 12 in view of the molding error of the frame member 22 and the like. Further, since the multi-layer glass 12 is formed by superposing a plurality of glass plates 14, some errors may occur in the thickness dimension. That is, when the thickness of the multilayer glass 12 is thin and the width dimension of the concave groove 24 is increased, a large gap is generated between the multilayer glass 12 and the frame member 22, It is pointed out that the glass layer 12 may rattle in the front-rear direction.

  That is, the present invention has been proposed to solve this problem in view of the above-mentioned problems inherent in the door frame structure according to the prior art, and the transparent member is rattled against the frame member. An object of the present invention is to provide a door frame structure that can be installed without any problems.

In order to overcome the above-mentioned problems and achieve the intended purpose, the door frame structure according to the present invention includes:
A transparent body of a required shape, a plurality of resin frame members formed with concave grooves into which the sides of the transparent body are inserted, and ends of the frame members that are externally fitted to the sides of the transparent body In the frame structure of the door composed of joints that connect the parts,
The joint is located on a side of a first side portion that abuts against one wall portion that defines a concave groove in the frame member from the outside, and on the side of the other wall portion that defines the concave groove. A second side fixed through fixing means,
When fixing the second side part to the frame member, the first side part is displaced toward the other wall part by displacing the first side part to the other wall part side. It is configured to be deformed so that the side portion of the transparent body inserted in the concave groove is sandwiched in a pressed state by both wall portions.

  According to the frame structure of the door according to the present invention, the frame member and the joint are fixed by the fixing means so that the side portion of the transparent body is sandwiched in a pressed state by the pair of wall portions constituting the concave groove. Therefore, it is possible to prevent the transparent body from rattling due to a dimensional error of each member. Moreover, the convex part which protrudes toward the outer peripheral surface of a transparent body is formed in the bottom part of a ditch | groove, and when the joint was fixed to the frame member, this convex part was comprised so that it might be pressed toward the outer peripheral surface of a transparent body. Therefore, it is possible to further prevent the transparent body from rattling.

  A first side part that comes into contact with one wall part defining the concave groove from the outside to a joint that connects each frame member disposed in a state in which each side part of the transparent body is inserted into the concave groove; A second side portion located on the side of the other wall portion defining the concave groove is provided, and the second side portion is fixed to the frame member via fixing means, thereby fixing the frame member and the joint. Like that. And when fixing a 2nd side part to a frame member, the said 1st side part is displaced to the other wall part side, and this one side part is turned toward the other wall part by this 1st side part. The side part of the transparent body inserted into the groove is pressed and deformed, and is sandwiched in a pressed state by both wall parts.

  Next, the door frame structure according to the present invention will be described below with reference to the accompanying drawings by way of preferred embodiments. For convenience of explanation, the same reference numerals are used for the same elements as those of the door frame structure shown in FIGS. 4 to 7, and detailed description thereof is omitted. The front side of the door refers to the surface facing the outside world, while the rear side refers to the surface facing the inside of the storage (not shown). That is, the front side is the front side in FIG. 1, and the lower side in the figure is the front side in FIG.

  As shown in FIG. 1 or FIG. 2, the outer frame 42 in the glass door (door) 40 according to the first embodiment has four frames arranged corresponding to each side in the rectangular multilayer glass 12. It is basically composed of a member 44, an L-shaped corner joint (joint) 50 connecting the frame members 44, 44, and a screw 30 as a fixing means for fixing the frame member 44 and the corner joint 50. Yes. The structure of the multilayer glass 12 and the procedure for attaching the outer frame 42 to the multilayer glass 12 are the same as the frame structure shown in the conventional example.

  The frame member 44 is a cylindrical body made of a synthetic resin having flexibility, and is formed in a substantially rectangular tube shape having a hollow portion 48 opened at both ends, and the length dimension of each frame member 44 is: The length is set in accordance with each corresponding side portion of the multilayer glass 12. Further, the frame member 44 is provided with a concave groove 46 having a width dimension capable of inserting the side portion of the multilayer glass 12 in the longitudinal direction on the inner surface facing the corresponding side portion. That is, as shown in FIG. 2, the concave groove 46 includes a front wall portion (one wall portion) 46 a located on the front side of the multilayer glass 12 and a rear wall located on the rear side of the multilayer glass 12. It is defined by a portion (the other wall portion) 46b and a bottom portion 46c located between both wall portions 46a and 46b and facing the outer peripheral surface of the multilayer glass. Here, the interval between the front wall portion 46 a and the rear wall portion 46 b in the concave groove 46 is set slightly larger than the thickness dimension of the multilayer glass 12, and when the multilayer glass 12 is inserted into the concave groove 46. A gap T1 is formed between the inner wall surface of the concave groove 46 (the inner wall surface of the front wall portion 46a or the rear wall portion 46b) and the multilayer glass 12. Furthermore, the end portion of the frame member 44 is formed by cutting out at 45 ° with respect to the longitudinal direction of the frame member 44, and the rectangular multi-layer glass is formed by abutting the end portions of the frame members 44. A 90 ° corner is formed in accordance with 12 90 ° corners.

  A pair of projecting pieces 47, 47 projecting toward the opening side (the outer peripheral surface of the multilayer glass) is formed on the bottom 46 c of the concave groove 46, and the multilayer glass 12 is inserted into the concave groove 46. At this time, the projecting pieces 47 and 47 are configured to elastically contact the outer peripheral surface of the multilayer glass 12 so as to restrict the movement of the multilayer glass 12 in the vertical and horizontal directions. The rear wall surface 44b of the frame member 44 facing the inside of the storage is provided with an insertion hole 49 penetrating the hollow portion 48 at a position away from the recessed groove forming position, and the frame member is interposed through the insertion hole 49. A screw 30 for fixing 44 and the corner joint 50 is inserted.

  As shown in FIG. 1, the corner joint 50 is bent at 90 ° according to the corners of the rectangular double-glazed glass 12, and the outer shape is formed in an L shape. The corner joint 50 is formed in a substantially U-shaped cross section, and the first side portion 52 extending from the front end edge of the base portion 51 is set to be longer than the second side portion 54 extending from the rear end edge. In addition, the dimension is set such that it can be inserted into the hollow portion 48 of the frame member 44. The second side portion 54 is threaded with a screw hole 56 that aligns with the insertion hole 49 of the frame member 44 when the corner joint 50 is inserted into the frame member 44.

  As shown in FIG. 2, when one end portion of the corner joint 50 is inserted into the hollow portion 48 from the opening end portion of the frame member 44, the first side portion 52 forms the concave groove 46. It abuts on the portion 46a from the outside (the side opposite to the groove 46). On the other hand, the second side portion 54 is set so as to face the rear wall surface 44b of the frame member 44, and a gap T2 is formed between the second side portion 54 and the rear wall surface 44b (FIG. 2A). reference). The gap T2 is set to be larger than the gap T1. As shown in FIG. 2B, the frame member 44 and the corner joint 50 are screwed into the screw holes 56 of the corner joint 50 by screwing the screws 30 inserted from the insertion holes 49 of the frame member 44. It is configured to be fixed by fastening the second side portion 54 to the member 44. Further, at this time, the corner joint 50 is displaced toward the rear wall surface 44b side of the frame member 44 by the gap T2 so that the first side portion 52 is displaced toward the rear wall portion 46b side forming the concave groove 46, Thus, the front wall portion 46a is pressed and deformed toward the rear wall portion 46b.

[Operation of Example 1]
Next, the operation of the door frame structure according to the first embodiment will be described. When the side portion of the multilayer glass 12 is inserted into the concave groove 46 of the frame member 44, a gap T1 is formed between the front wall portion 46a and the multilayer glass 12. When the corner joint 50 is inserted into the frame member 44, the first side portion 52 comes into contact with the front wall portion 46a from the outside, and the second side portion 54 is disposed in a state of facing the rear wall surface 44b. (See FIG. 2 (a)). At this time, a gap T2 is provided between the rear wall surface 44b and the second side portion 54, and the insertion hole 49 of the frame member 44 and the screw hole 56 of the corner joint 50 are aligned. After that, by screwing the screw 30 inserted through the insertion hole 49 into the screw hole 56, the second side portion 54 is attracted to the rear wall surface 44b, and is displaced rearward by the gap T2 and the rear side. It contacts the wall surface 44b. That is, with the displacement of the second side portion 54 to the rear side, the corner joint 50 itself moves to the rear side, and the first side portion 52 also moves the front wall portion 46a to the rear side (rear wall portion 46b side). Will be pressed toward the gap by the gap T2. And the front wall part 46a which received the pressing force of the said 1st side part 52 bends, and the width dimension of the ditch | groove 46 transfers to a narrow state.

  As described above, the amount by which the first side portion 52 is displaced toward the rear wall portion 46b, that is, the gap T2 is set larger than the gap T1 formed between the front wall portion 46a and the multilayer glass 12. Therefore, the gap T1 is eliminated, and the side portions of the multi-layer glass 12 inserted in the concave groove 46 are, as shown in FIG. 2B, a front wall portion 46a and a rear wall portion 46b. Is held in a pressed state.

  Thus, by fixing the corner joint 50 to the frame member 44 with the screw 30, the width of the concave groove 46 becomes narrow, and the side portion of the multilayer glass 12 inserted into the concave groove 46. Therefore, even if there is a dimensional variation in the frame member 44 or the multi-layer glass 12, etc., the multi-layer glass 12 can be reliably fixed in the front-rear direction, and rattling does not occur. In addition, since the gap T1 is formed by setting the width dimension of the groove 46 larger than the thickness of the multilayer glass 12 in advance, the multilayer glass 12 can be easily inserted into the groove 46. Thus, the workability of the assembly work can be improved.

  Further, in the frame structure according to the first embodiment, the reliable clamping of the side portion in the multilayer glass 12 can be performed without increasing the number of parts. Therefore, an increase in work man-hours during assembly of the frame structure is avoided.

  Next, the door frame structure according to the second embodiment will be described. In addition, since the frame structure of the door which concerns on Example 2 is fundamentally the same as what was demonstrated in Example 1, only a different part is demonstrated. In the frame structure of the first embodiment, as shown in FIG. 2, the vertical and horizontal movements of the multilayer glass 12 are restricted and positioned by the protruding pieces 47, 47 protruding from the concave grooves 46 of the frame member 44. It is configured as follows. On the other hand, in the outer frame 60 in the frame structure of the second embodiment, the bottom portion 46c of the concave groove 46 in the frame member 62 is curved toward the outer peripheral surface of the multilayer glass 12, thereby projecting the convex portion 64. ing. As the frame member 62 and the corner joint 50 are fixed with the screws 30, the front wall portion 46a is pressed and deformed toward the rear wall portion 46b by the first side portion 52 of the corner joint 50. By deforming the bottom 46c, the convex portion 64 protrudes toward the outer peripheral surface of the multilayer glass 12, and the convex portion 64 is thereby pressed against the outer peripheral surface of the multilayer glass 12 ( (See Figure 3 (b))

  That is, also in the second embodiment, by simply fixing the frame member 62 and the corner joint 50 with the screws 30, the side portions of the multi-layer glass 12 inserted in the concave groove 46 are formed by the front and rear wall portions 46a and 46b. The multilayer glass 12 can be held without being rattled in the front-rear direction. Moreover, since the convex part 64 formed in the bottom part 46c of the ditch | groove 46 is pressed by the outer peripheral surface of the multilayer glass 12, the outer peripheral surface which opposes right and left and up and down is the convex part 64 of the corresponding frame members 62 and 62, The multilayer glass 12 is held against the outer frame 60 without rattling in the vertical and horizontal directions.

  In addition, only the bottom part 46c including the said convex part 64 is integrally formed with the soft synthetic resin different from another part, and the convex part 64 is made into the outer peripheral surface of the multilayer glass 12 by ensuring a large deformation amount. You may make it press strongly.

  In each embodiment, the frame structure that holds the outer peripheral edge of the rectangular multilayer glass has been described. However, the transparent body may be a single-layer glass plate or other member such as an acrylic plate. In each embodiment, the door is disposed in a vertical orientation with respect to the showcase body. However, in order to open and close the entrance / exit in a storage room or the like having an article entrance / exit at the top. It is possible to adopt as a frame structure of a door disposed in a horizontal position.

It is a schematic perspective view which decomposes | disassembles and shows the frame structure of the door which concerns on suitable Example 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a plane sectional view which shows the principal part of the frame structure of the door which concerns on Example 1, Comprising: (a) shows the state which inserted the corner joint in the frame member, (b) shows a frame member and a corner joint. The state connected with the screw is shown. It is a plane sectional view which shows the principal part of the frame structure of the door which concerns on Example 2, Comprising: (a) shows the state which inserted the corner joint in the frame member, (b) shows a frame member and a corner joint. The state connected with the screw is shown. It is a schematic perspective view which shows the conventional glass door. It is a plane sectional view showing the important section of the frame structure of the conventional glass door. It is a schematic perspective view which decomposes | disassembles and shows the frame structure of the conventional glass door. It is a schematic perspective view which shows the assembly condition of the frame structure of the conventional glass door.

Explanation of symbols

12 Multi-layer glass (transparent body), 30 screws (fixing means), 44 frame member, 46 concave groove 46a front wall part (one wall part), 46b rear wall part (other wall part), 46c bottom part 50 corner joint (Joint), 52 1st side, 54 2nd projection, 64 convex

Claims (2)

A transparent body (12) of a required shape, a plurality of resin frame members (44) formed with concave grooves (46) into which the sides of the transparent body (12) are inserted, and the transparent body (12 In the frame structure of the door composed of joints (50) that connect the ends of each frame member (44) fitted on each side of
The joint (50) includes a first side portion (52) that comes into contact with one wall portion (46a) that defines a concave groove (46) in the frame member (44), and the concave groove (46). A second side portion (54) positioned on the side of the other wall portion (46b) that defines the frame member (44) and fixed to the frame member (44) via fixing means (30),
When fixing the second side portion (54) to the frame member (44), the first side portion (52) is displaced by displacing the first side portion (52) toward the other wall portion (46b). ), The one wall portion (46a) is pressed and deformed toward the other wall portion (46b), and the side portions of the transparent body (12) inserted in the concave groove (46) are both wall portions (46a). 46b), and is configured to be held in a pressed state. On the bottom (46c) located between both wall portions (46a, 46b) in the concave groove (46), a convex portion (64) protruding toward the outer peripheral surface of the transparent body (12) is formed, A structure in which the convex portion (64) is pressed toward the outer peripheral surface of the transparent body (12) as one wall portion (46a) is pressed and deformed toward the other wall portion (46b). The frame structure of the door according to claim 1.

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