JP6994709B2 - Door connection structure - Google Patents

Description

Patent Law Article 30, Paragraph 2 Applicable February 15, 2017 Exhibited at the 3rd Hospital Innovation Exhibition

The present invention relates to a door connecting structure used for a serving car, a refrigerator, a refrigerated showcase, and the like.

For serving cars, refrigerators, etc., a door that can be opened and closed is attached to the housing so that the door can be opened to allow food to be taken in and out. The door is provided with grooves along four sides, and a packing member is attached to the grooves to improve the sealing property when the door is closed. For example, in the heat insulating door described in Patent Document 1, a pair of horizontal portions and a pair of vertical portions form an outer peripheral portion on four sides, and a packing member is attached to a fitting groove formed along the four sides. ing.

In addition, some door structures are formed by combining frame-shaped frames, and processing of corners called tome processing is known. In the tome processing, a seam extending in the front-rear direction and a seam inclined at an angle of 45 degrees are formed at the corner portion where the horizontal stile and the vertical stile are connected.

Japanese Unexamined Patent Publication No. 9-49682

As described above, in the tome processing, seams are formed at the corners of the frame body in which the frames are combined. For this reason, if the rigidity of the door is insufficient, the seam may open and the user who touches the seam when opening and closing the door may be injured. Sufficient reinforcement is required to increase the rigidity of the door, and such reinforcement complicates the structure.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a door connecting structure having excellent safety without complicating the structure.

In order to achieve the above object, the door connecting structure of the present invention is a door connecting structure in which frame-shaped frames are combined to form a frame, and the frames are orthogonal to each other at the corners. A cap having a side surface formed by an upright portion is attached to the corner portion, and the stile is formed with a packing mounting groove in a space between a pair of extension portions in the longitudinal direction. One of the stiles in the corner portion has the groove extended to the end face, and the other stile has the end portion due to the extension portion on the one stile side not extending to the end face. An open space is formed, and the open space is open to the end face side in the longitudinal direction of the other stile and to the one stile side, and the cap is attached to the open space. A new groove connected to the groove of the other stile is formed between the end face of the upright portion of the cap and the end face of the extension portion that does not extend to the end portion. The groove of the stile, the new groove, and the groove of the other stile are continuously connected to form an orthogonal groove.

According to the door connection structure of the present invention, orthogonal grooves continuously connected at the corners can be formed for packing mounting without performing tome processing, and in the front-rear direction formed by tome processing. Since no stretched seam or seam inclined at an angle of 45 degrees is formed, it is advantageous for ensuring safety. Further, since the orthogonal grooves can be formed by the grooves formed in the stile and the cap, the structure is not particularly complicated.

In the door connecting structure of the present invention, it is preferable that the cap covers the end face of the other stile. According to this configuration, the end face can be protected by the cap. Since the cap is also a component constituting the groove, the configuration of the cap according to the present invention can suppress an increase in the number of components.

The effects of the present invention are as described above, and in summary, according to the door connection structure of the present invention, orthogonal grooves continuously connected at the corners are formed for packing mounting without performing tome processing. Since the seam formed by the tome processing is not formed, it is advantageous for ensuring safety. Further, since the orthogonal grooves can be formed by the grooves formed in the stile and the cap, the structure is not particularly complicated.

The external perspective view of the serving car provided with the door connecting structure which concerns on one Embodiment of this invention. FIG. 3 is an external perspective view showing a state in which a part of the door is opened in the serving car shown in FIG. The external perspective view of one door shown in FIG. FIG. 3 is an external perspective view showing a state in which the door shown in FIG. 3 is viewed from the back surface. The perspective view which looked at the disassembled state of the door which concerns on one Embodiment of this invention from the front side. The perspective view which looked at the disassembled state of the door which concerns on one Embodiment of this invention from the back side. The enlarged view of the part corresponding to the part C of FIG. In one embodiment of the present invention, an external perspective view showing a state immediately before attaching the upper end cap. In one embodiment of the present invention, an external perspective view showing an assembled state of an upper stile, a vertical stile, and its accessories. FIG. 9 is a view of the assembly of FIG. 9 in a plan view. An exploded perspective view showing a state in which each part of FIG. 7 is viewed from the opposite side. An external perspective view showing an assembly completed state of the upper stile, the vertical stile, and its accessory parts as the assembly proceeds from the state of FIG. FIG. 2 is a cross-sectional view taken along the line FF of FIG. The enlarged view of the part corresponding to the part D of FIG. In one embodiment of the present invention, an external perspective view showing a state immediately before attaching the upper end cap. In one embodiment of the present invention, an external perspective view showing an assembled state of an upper stile, a vertical stile, and its accessories. FIG. 16 is a view of the assembly of FIG. 16 in a plan view. An exploded perspective view showing a state in which each component of FIG. 14 is viewed from the opposite side. An external perspective view showing an assembly completed state of the upper stile, the vertical stile, and its accessory parts after the assembly proceeds from the state of FIG. FIG. 19 is a cross-sectional view taken along the line GG. FIG. 3 is a cross-sectional view showing a mounting state of a panel in one embodiment of the present invention.

Hereinafter, the door connection structure according to the embodiment of the present invention will be described with reference to the drawings. In the present embodiment, an example in which the door connecting structure according to the present invention is applied to a serving car will be described, but the application target is not particularly limited, and may be, for example, a refrigerator or a refrigerated showcase.

FIG. 1 is an external perspective view of a serving wheel 10 provided with a connecting structure of a door 1 according to an embodiment of the present invention. FIG. 2 is an external perspective view showing a state in which a part of the door 1 is opened in the serving wheel 10 shown in FIG. In FIG. 1, the serving wheel 10 has a door 1 that can be opened and closed by a hinge mechanism attached to a housing 11 to form an appearance. The door 1 is provided with a door connecting structure according to an embodiment of the present invention, which will be described in detail later.

By opening the door 1 as shown in FIG. 2, the tray can be placed on the shelf 12 arranged in the housing 11 and the tray can be taken out from the shelf 12. Although detailed illustration is omitted, a packing 13 is attached to the door 1 in FIG. 2 to improve the sealing property when the door is closed as shown in FIG.

FIG. 3 is an external perspective view of one door 1 shown in FIG. 1, and FIG. 4 is an external perspective view showing a state in which the door 1 shown in FIG. 3 is viewed from the back surface. FIG. 3 shows the surface side of the door 1, and the door 1 can be opened and closed by inserting a hand into the recess of the pull tab 2. The door 1 is composed of a frame-shaped upper stile 3, a lower stile 4, a vertical stile 5, and a vertical stile 6, respectively. Hereinafter, for convenience of explanation, the longitudinal direction of the vertical stile 5 and the vertical stile 6 is the vertical direction (arrow a direction in FIG. 3), and the longitudinal direction of the upper stile 3 and the lower stile 4 is the horizontal direction (arrow b direction in FIG. 3). ).

5 and 6 are perspective views showing the disassembled state of the door 1, FIG. 5 shows a state seen from the front surface side, and FIG. 6 shows a state seen from the back surface side. The components will be mainly described with reference to FIG. 5, and the details of assembly will be described later. In FIG. 5, the upper stile 3, the lower stile 4, the vertical stile 5 and the vertical stile 6 are constituent members of the frame body as described above, and are fixed by screws 14. The groove cover 7 is a cover that covers the groove portion of the vertical stile 5, and the groove cover 8 is a cover that covers the groove portion of the vertical stile 6.

An upper end block 18 and a lower end block 19 are attached to the upper and lower ends of the pull tab 2, respectively. The upper and lower ends of the vertical stile 5 are attached with the upper end cap 20 and the lower end cap 21 by screws 24, respectively, and the upper and lower ends of the vertical stile 6 are attached with the upper end cap 22 and the lower end cap 23 by screws 24, respectively. The gaskets 25, 26, 27, and 28 are attached to the pull tab 2, the upper stile 3, the vertical stile 6, and the lower stile 4, respectively, and a pair of panels 15 are further attached in this state.

FIG. 6 shows a state in which FIG. 5 is viewed from the back surface side, and the components are as described with reference to FIG. FIG. 7 is an enlarged view of a portion corresponding to the portion C in FIG. The vertical stile 6 is formed with a front flange 30 and a rear flange 31 facing each other. In the vertical direction (direction of arrow a), the tip 33 of the rear flange 31 is located lower than the tip 32 of the front flange 30. Hereinafter, for convenience of explanation, the portion of the rear space of the front flange 30 facing the rear flange 31 is referred to as a lower space 34, and the portion not facing the rear flange 31 is referred to as an upper space 35. The end portion of the upper stile 3 is inserted into the lower space 34 and the upper space 35, and the vertical stile 6 and the upper stile 3 are combined.

In the state where the vertical stile 6 and the upper stile 3 are combined, the lower part of the upper stile 3 is accommodated in the lower space 34, and the upper part of the upper stile 3 (the portion where the horizontal groove 45 is formed) is exposed in the upper space 35 (the portion where the horizontal groove 45 is formed). See FIG. 8). With the vertical stile 6 and the upper stile 3 combined, the screw 14 is inserted into the hole 38 formed in the vertical stile 6 and tightened into the screw tightening groove 46 formed in the upper stile 3. As a result, the vertical stile 6 and the upper stile 3 are fixed.

With the vertical stile 6 and the upper stile 3 fixed, the lower end of the groove cover 8 is engaged with the upper end of the groove 41 on the side of the vertical stile 6, and the groove cover 8 is moved downward along the groove 41. Then, the groove cover 8 is attached to the vertical frame 6. A cross-sectional view of the groove cover 8 attached to the vertical stile 6 is shown in FIG.

A plate 36 bridged between the front and rear plates is formed on the upper stile 3, and a protruding portion 37 protruding in the vertical direction (arrow a direction) is formed on the plate 36. By engaging the gasket 28 with the protruding portion 37, the gasket 28 is attached to the upper stile 3. The vertical stile 6 also has the same structure as the plate 36 and the protrusion 37, and the gasket 27 is attached to the vertical stile 6.

FIG. 8 is an external perspective view showing a state in which the assembly proceeds from the state of FIG. 7 and immediately before the upper end cap 22 is attached. From the state shown in FIG. 8, the upper end cap 22 is attached to the upper end portion of the vertical frame 6. Subsequently, the screw 24 is inserted into the hole 43 formed in the upper end cap 22 and tightened in the screw tightening groove 42 formed in the vertical frame 6. As a result, the upper end cap 22 is fixed to the vertical stile 6. As shown in FIG. 9, when the upper end cap 22 is fixed to the vertical stile 6, the end face of the vertical stile 6 shown in FIG. 8 is covered with the upper end cap 22.

After the above assembly work, the assembly of the parts shown in FIG. 7 is completed. FIG. 9 is an external perspective view showing an assembled state of the upper stile 3, the vertical stile 6, and its accessory parts. FIG. 10 is a view (E arrow view) of the assembly of FIG. 9 in a plan view. In FIG. 10, a pair of extending portions 50 and 51 are formed in the vertical stile 6, and a vertical groove 44 is formed in the space between the extending portion 50 and the extending portion 51. Similarly, a pair of extending portions 52 and 53 are formed in the upper stile 3, and a lateral groove 45 is formed in the space between the extending portions 52 and the extending portions 53. The vertical groove 44 and the horizontal groove 45 are grooves for mounting packing (not shown), and the same applies to the following horizontal groove 56, vertical groove 82, and horizontal groove 85.

In FIG. 7, the upper end of the extension portion 51 is lower than the upper end of the extension portion 50, and the extension portion 51 does not extend to the end face of the vertical stile 6. As a result, an open space 54 is formed in which the extension portion 50 and the extension portion 51 do not face each other. In the state where the vertical stile 6 and the upper stile 3 are assembled, the open space 54 and the horizontal groove 45 of the upper stile 3 are connected as shown in FIG. At the same time, the upright portion 55 of the upper end cap 22 enters the open space 54. As a result, as shown in FIG. 10, a new transverse groove 56 is formed between the upper end surface of the extending portion 51 and the lower end surface of the upright portion 55.

Therefore, as shown in FIGS. 9 and 10, the lateral groove 45 and the lateral groove 56 are continuously connected in the assembled state of the upper stile 3 and the vertical stile 6 and their accessory parts. Then, the horizontal groove 56 and the vertical groove 44 are continuously connected, and the horizontal groove 45, the horizontal groove 56, and the vertical groove 44 are continuously connected at the corner portion to form an orthogonal groove.

FIG. 11 is an exploded perspective view showing a state in which each component of FIG. 7 is viewed from the opposite side. FIG. 12 is an external perspective view showing an assembly completed state of the upper stile 3 and the vertical stile 6 and their accessory parts after the assembly proceeds from the state of FIG. FIG. 12 corresponds to part A in FIG. In FIG. 11, the end of the upper stile 3 is inserted into the end of the vertical stile 6 (lower space 34 and upper space 35 of FIG. 7), and the vertical stile 6 and the upper stile 3 are combined. As a result, the end portion of the upper stile 3 is housed in the vertical stile 6. FIG. 13 shows a cross-sectional view taken along the line FF of FIG. As shown in this figure, the end face of the vertical stile 6 is covered with the upper stile 3, and it is possible to prevent the user from touching the edge 57 of the end face.

FIG. 14 is an enlarged view of a portion corresponding to the portion D in FIG. The vertical frame 5 is formed with a front flange 60 and a rear flange 61 facing each other. In the vertical direction (direction of arrow a), the tip 63 of the rear flange 61 is located lower than the tip 62 of the front flange 60. Hereinafter, for convenience of explanation, the portion of the rear space of the front flange 60 facing the rear flange 61 is referred to as a lower space 64, and the portion not facing the rear flange 61 is referred to as an upper space 65. The end portion of the upper stile 3 is inserted into the lower space 64 and the upper space 65, and the vertical stile 5 and the upper stile 3 are combined.

In the state where the vertical stile 5 and the upper stile 3 are combined, the lower part of the upper stile 3 is accommodated in the lower space 64, and the upper part of the upper stile 3 (the portion where the horizontal groove 45 is formed) is exposed in the upper space 65 (the portion where the horizontal groove 45 is formed). See FIG. 15). With the vertical stile 5 and the upper stile 3 combined, the screw 14 is inserted into the hole 70 formed in the vertical stile 5 and tightened into the screw tightening groove (not shown) formed in the upper stile 3. As a result, the vertical stile 5 and the upper stile 3 are fixed. Although not shown in FIG. 14, a structure similar to that of the screw tightening groove 46 of FIG. 7 is also formed at the end of the upper stile 3 in the state of FIG.

The upper end block 18 is attached to the upper end portion of the pull tab 2, the side portion of the pull tab 2 is charged in the vertical stile 5, and the upper end portion of the pull tab 2 is charged in the upper stile 3.

With the vertical stile 5 and the upper stile 3 fixed, the lower end of the groove cover 7 is engaged with the upper end of the groove 72 on the side of the vertical stile 5, and the groove cover 7 is moved downward along the groove 72. Then, the groove cover 7 is attached to the vertical frame 5.

On the other hand, the pull tab 2 is formed with a plate 66 and a protrusion 67 having the same structure as the plate 36 and the protrusion 37 formed on the upper frame 3 of FIG. By engaging the gasket 25 with the protrusion 67, the gasket 25 is attached to the pull tab 2.

FIG. 15 is an external perspective view showing a state in which the assembly proceeds from the state of FIG. 14 and immediately before the upper end cap 20 is attached. From the state of FIG. 15, the upper end cap 20 is attached to the upper end portion of the vertical frame 5. Subsequently, the screw 24 is inserted into the hole 73 formed in the upper end cap 20 and tightened in the screw tightening groove 74 formed in the vertical frame 5. As a result, the upper end cap 20 is fixed to the vertical frame 5. As shown in FIG. 16, when the upper end cap 20 is fixed to the vertical frame 5, the end face of the vertical frame 5 shown in FIG. 15 is covered with the upper end cap 20.

Through the above assembly work, the assembly of the parts shown in FIG. 14 is completed. FIG. 16 is an external perspective view showing an assembled state of the upper stile 3, the vertical stile 5, and its accessory parts. FIG. 17 is a view (G arrow view) of the assembly of FIG. 16 in a plan view. In FIG. 17, a pair of extending portions 80 and 81 are formed in the vertical stile 5, and a vertical groove 82 is formed in the space between the extending portions 80 and the extending portions 81. Similarly, a pair of extending portions 52 and 53 are formed in the upper stile 3, and a lateral groove 45 is formed in the space between the extending portions 52 and the extending portions 53.

In FIG. 14, the upper end of the extension portion 81 is lower than the upper end of the extension portion 80, and the extension portion 81 does not extend to the end face of the vertical stile 5. This forms an open space 83 in which the extension portion 80 and the extension portion 81 do not face each other. In the state where the vertical stile 5 and the upper stile 3 are assembled, the open space 83 and the horizontal groove 45 of the upper stile 3 are connected as shown in FIG. At the same time, the upright portion 84 of the upper end cap 20 enters the open space 83. As a result, as shown in FIG. 17, a new transverse groove 85 is formed between the upper end surface of the extending portion 81 and the lower end surface of the upright portion 84.

Therefore, as shown in FIGS. 16 and 17, the lateral groove 45 and the lateral groove 85 are continuously connected in the assembled state of the upper stile 3 and the vertical stile 5 and their accessory parts. Then, the horizontal groove 85 and the vertical groove 82 are continuously connected, and the horizontal groove 45, the horizontal groove 85, and the vertical groove 82 are continuously connected at the corner portion to form an orthogonal groove.

FIG. 18 is an exploded perspective view showing a state in which each component of FIG. 14 is viewed from the opposite side. FIG. 19 is an external perspective view showing an assembly completed state of the upper stile 3 and the vertical stile 5 and their accessory parts after the assembly proceeds from the state of FIG. FIG. 19 corresponds to part B in FIG. In FIG. 18, the end portion of the upper stile 3 is inserted into the upper space 65 and the lower space 64 of the vertical stile 5, and the vertical stile 5 and the upper stile 3 are combined. As a result, the end portion of the upper stile 3 is housed in the vertical stile 5. FIG. 20 shows a cross-sectional view taken along the line GG of FIG. As shown in this figure, the end face of the vertical stile 5 is covered with the upper stile 3, and it is possible to prevent the user from touching the edge 58 of the end face.

FIG. 21 shows a cross-sectional view showing a mounting state of the panel 15. This figure is a cross section of the vertical frame 6 portion in the horizontal direction. The end portion of the panel 15 is embedded in the vertical stile 6 through the gap between the gasket 27 and the vertical stile 6.

Although the door connecting structure according to the embodiment of the present invention has been described above, according to the door connecting structure according to the present invention, orthogonal grooves continuously connected at the corners are formed without performing tome processing. It can be formed for packing mounting. For this reason, in the tome processing, the seams extending in the front-rear direction and the seams inclined at an angle of 45 degrees are not formed, which is advantageous for ensuring safety. Further, since the orthogonal grooves can be formed by the grooves formed in the stile and the cap, the structure is not particularly complicated.

Further, in the present embodiment, the connection structure at the upper two corners of the four corners of the door 1 has been described, but the same connection structure may be adopted for the lower two corners. As a result, orthogonal grooves are formed at the four corners, a continuous rectangular groove is formed along the outer circumference of the door 1, and a rectangular packing having four sides integrated is easily attached. Will be possible.

1 Door 2 Puller 3 Upper stile 4 Lower stile 15 Panel 20,22 Top cap 44,82 Vertical groove 45,56,85 Horizontal groove 50,51,52,53 Extension part 54 Open space 55,84 Upright part

Claims (2)

It is a connecting structure of doors that form a frame by combining frame-shaped frames.
The frame body has the frames orthogonally combined at the corners.
A cap whose side surface is formed by an upright portion is attached to the corner portion.
In the longitudinal direction of the stile, a groove for mounting the packing is formed in the space between the pair of extending portions.
One of the stiles in the corner portion has the groove extending to the end face, and the other stile has an open space at the end because the extending portion on the one stile side does not extend to the end face. Is forming
The open space is open to the end face side in the longitudinal direction of the other stile and the one stile side.
One of the extended portions of the pair of extended portions of the one stile is continuously connected to the extended portion of the other stile that does not extend to the end face.
With the cap attached to the open space, a new connection between the end face of the upright portion of the cap and the end face of the extension portion that does not extend to the end face is connected to the groove of the other stile. Groove is formed,
A door connecting structure characterized in that, at the corner portion, a groove of one of the stiles, a new groove, and a groove of the other stile are continuously connected to form an orthogonal groove. The door connecting structure according to claim 1, wherein the cap covers the end face of the other stile.

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