JPH08276736A - Seal structure in the vicinity of door of service cart - Google Patents

Abstract

PURPOSE: To provide a seal structure in the vicinity of a door in a service cart wherein sealability can be improved, and damaging and deteriorating a seal material of seal rubber or the like can be prevented, also to simplify/ facilitate positioning, mounting, replacing, etc., of the seal material. CONSTITUTION: In a seal structure in the vicinity of a door 1 in a service cart of storing an article in the inside while thermally insulated to be presented for various services, a corner mold 2 in a vertical end edge in one side of the door 1, in a closed condition A, is arranged to be placed in an opposed position to a front side of a corner mold 4 in a vertical end edge in one side corresponding to a side panel 3. Further in the corner mold 4 of the side panel 3, a vertical protrusive streak 21 brought into contact with the corner mold 2 of the door in the closed condition A is protrusively provided in a front side. Further in the corner mold 4 of the side panel 3, a seal material 22 of seal rubber or the like, brought into contact with the corner mold 2 of the door 1 in the closed condition A, is fitted to be held to a vertical groove 23 formed in a front side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal structure near a door of a service cart. That is, the present invention relates to a seal structure near a door in a service cart that has a box-like shape and is provided with a door and a caster, and stores articles inside to keep warm while providing various services.

[0002]

2. Description of the Related Art FIGS. 3 and 4 are plan cross-sectional explanatory views of a seal structure near a door of a service cart according to this type of conventional example. FIG. 3 shows a door closed state and FIG. 4 shows a door opened state. Indicates. As shown in these drawings, in this type of service cart used for in-flight service to passengers in an aircraft, for example, one side of the door 1 (right side in the illustrated example)
The vertical corner edge material 2 and the corresponding vertical edge corner material 4 on one side (front side in the illustrated example) of the side panel 3 are attached by a double hinge 5. The door 1 faces the outer surface of the side panel 3 from the closed state A shown in FIG. 3 to the 90 degree open state B shown by the solid line in FIG. 4 and further as shown by the imaginary line in FIG. It can be opened and closed freely up to the 270 degree open state C.

In this type of service cart, the seal structure near the door 1 in the closed state A is as follows.
In the closed state A, the corner profile 2 of the door 1 is arranged so as to face the inside of the corner profile 4 of the side panel 3, and the corner profile 2 of the door 1 is closed.
A vertical ridge 6 is projected from the side panel 3 toward the corner member 4 of the side panel 3, and further contacts the corner member 2 of the door 1 and the corner member 4 of the side panel 3 in the closed state A. The seal rubber 7, which is a sealing material, was attached vertically. The base of the seal rubber 7 was vertically attached to the back surface of the corner mold member 2 of the door 1 by using a backing plate 8 and rivets. In the figure, 9 and 10 are hinge pins of the double hinge 5.

[0004]

By the way, the following problems have been pointed out in the conventional seal structure near the door 1 as described above. First of all, in the conventional example as described above, in the closed state A of the corner member 2 of the door 1,
Since it is arranged so as to be opposed to the inside of the corner member 4 of the side panel 3, the vertical protrusion 6 of the corner member 2 of the door 1 in the closed state A in the closed state A is
It was not possible to make it project until it contacted the corner mold member 4. That is, if the protrusion 6 on the side of the corner member 2 of the door 1 is made to project to the degree of protrusion that abuts the side of the corner member 4 of the side panel 3 in the closed state A, not only in the closed state A of the door 1, Even at the time of opening and closing between the open states B and C, such a ridge 6 is provided on the side panel 3
If the door 1 comes into contact with the corner mold member 4, the opening and closing of the door 1 will not be smooth and will hinder the opening and closing.

Thus, in the closed state A, the ridge 6 of the conventional corner member 2 of the door 1 is merely located so as to project toward the corner member 4 of the side panel 3 and cannot be brought into contact therewith. However, there was a gap between the tip of the ridge 6 and the corner material 4. In this way closed state A
At, a slight gap is generated between the ridge 6 of the corner material 2 of the door 1 and the corner material 4 of the side panel 3,
There were cases where problems were pointed out in the sealability. That is, in the conventional seal structure near the door 1 of the service cart, the airtightness between the corner mold member 2 of the door 1 and the corner mold member 4 of the side panel 3 in the closed state A is not achieved by such a ridge 6. Since only the contact of the seal rubber 7 described above is relied upon, if the seal rubber 7 is damaged or deteriorated for some reason, the airtightness will be uncertain, and therefore the inside D and the outside E of the service cart will be damaged. It has been pointed out that the air leaks and flows easily. And first of all, there may be a problem in keeping heat such as cooling and heating of the articles stored in the inside D. Also, mischief of the fire of cigarettes (for example, cigarettes with a fire kept ashtray) It was also reported that an internal D fire caused by (when stored inside the service cart) was transmitted to the external E.

Secondly, the door 1 is in the closed state A shown in FIG.
4 to the 90 degree open state B shown by the solid line in FIG. 4, and when trays and other articles are put into and taken out from the inside D, the articles to be put in and taken out and the back surface of the corner member 2 of the opened door 1 It was easy to interfere with the vertically mounted seal rubber 7. Since the article and the seal rubber 7 are likely to come into contact with each other and interfere with each other in this way, it is pointed out that the article needs to be taken in and out carefully so that they do not interfere with each other, which is troublesome. Are easily damaged and deteriorated, and this also causes a problem with the above-mentioned sealing property.

In addition to this, when the door 1 is further opened to the 270 degree open state C shown by the phantom line in FIG. 4, a seal rubber 7 is vertically attached to the back surface of the corner mold member 2 of the door 1.
However, it was exposed to the outside E and easily interfered with, for example, a seat of the outside E. In this way, the seal rubber 7 and the seat of the outside E were in contact with each other and were likely to interfere with each other. Due to this, the seal rubber 7 is easily damaged and deteriorated also from this surface, which causes a problem in the sealing property. In addition, 27 of such door 1
The 0-degree open state C has been widely used and utilized conventionally, for example, when a service cart is used in a narrow passage between seats in an aircraft.

Third, by the way, the seal rubber 7 as such a seal member is vertically attached to the back surface of the corner mold member 2 of the door 1 by using a backing plate 8 or a rivet, and its positioning, It has been pointed out that it is not easy to install and replace, it is troublesome, and it does not look good.

In view of the above situation, the present invention has been made to solve the above-mentioned problems of the prior art, and in the closed state of the door, first, the corner member of the door is
The side panel corners are arranged so as to face each other in front of the corners, and the side panel corners are provided with vertical ridges that come into contact with the door corners. By being inserted and held in the vertical groove, firstly, the sealing property is improved, secondly, damage and deterioration of the sealing material are prevented, and thirdly, positioning, mounting, replacement of the sealing material, etc. The purpose is to propose a seal structure near the door of the service cart that is also easy and easy.

[0010]

The technical means of the present invention for achieving this object is as follows. That is, this seal structure relates to a seal structure near a door in a service cart which is box-shaped and includes a door and casters, and which stores various articles therein and keeps them warm while being used for various services. In the service cart, a corner profile of a vertical edge on one side of the door is attached to a corresponding corner profile of a vertical edge on one side of the side panel by a double hinge, and the door is opened from the closed state to the side panel. It is openable and closable up to the open position facing the outer surface. In this sealing structure, the corner profile of the door is arranged so as to face the front side of the corner profile of the side panel in the closed state, and the corner profile of the side panel is provided with the corner of the door in the closed state. A vertical ridge that abuts against the mold member is provided on the front side, and further, a sealing member that abuts against the corner mold member of the door in the closed state,
It is inserted and held in the vertical groove formed on the front side.

[0011]

Since the present invention comprises such means, it operates as follows. The seal structure near the door of this service cart should be such that the corner profile on one vertical edge of the door should be positioned opposite to the front of the corner profile on one vertical edge of the side panel when the door is closed. The vertical ridges, which are arranged and abutted against the corner profile of the closed door, are provided on the corner profile of the side panel.
Further, a sealing material that abuts the corner shape material of the closed door is fitted into the vertical groove of the side panel corner shape material,
Hold it.

Therefore, first, by arranging the corner profile of the door to face the front side of the corner profile of the side panel in the closed state, a vertical ridge or a sealing material is provided on the side of the corner profile of the side panel. However, the door can be opened and closed without hindrance. Now, when the door is closed, the inside and the outside of the service cart are doubly blocked by such a ridge and the sealing material, and the sealing property in the vicinity of the door is improved.

Secondly, since the sealing material is fitted and retained in the vertical groove on the front side of the corner type material of the side panel,
When the door is opened, it does not interfere with articles to be taken in and out, an external seat, and the like, and damage and deterioration thereof are prevented. Thirdly, the sealing material is thus inserted and retained in the vertical groove by the insertion method, and its positioning, mounting,
Exchange is easy and easy.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. FIG. 1 and FIG. 2 are plan cross-sectional explanatory views of an embodiment of the present invention, and FIG.
Indicates the open state of the door. FIG. 5 is a perspective view of the service cart.

First, a service cart of this type will be generally described with reference to FIG. This service cart has a box-like shape and is provided with a door 1 and casters 11. The service cart is used for various services while accommodating articles and keeping them warm. That is, this service cart is used when an occupant provides a meal or drink service to a passenger in a seat, for example, in a cabin of an aircraft or a passenger compartment of a vehicle such as a bullet train. And a rectangular top panel 12 and a floor panel 1
3, both side panels 3 and the like, front and rear doors 1 in the illustrated example
A caster 11 is attached below the four corners of the floor panel 13 and is moved by pushing. Heat-insulating panels are used for the top panel 12, floor panel 13, both side panels 3, doors 1, 14, etc., and these are aluminum and other light metals arranged as a frame on the top, bottom, left and right, front and back. It is attached to a corner member (for example, 2, 4) made of steel. Inside D of such a service cart
Guide rails, shelves, trays, etc. are arranged in the space, and foods, drinks, etc. are stored therein.

By the way, in the illustrated example, the front door 1 is simply used for opening / closing and sealing, whereas the rear door 1 is used.
4, vent holes 15 and 16 are attached to the upper and lower sides, and an air supply duct and an exhaust duct are connected to the vent ports 15 and 16 from the outside E. Therefore, in this service cart, for example, cold air is supplied from the air supply duct of the outside E through the vent hole 15 in the upper portion of the door 14,
After being circulated in the inside D, it is discharged to the exhaust duct of the outside E through the ventilation hole 16 in the lower part of the door 1. It should be noted that, instead of such an illustrated example, the rear door 14 may be a closed type without the vent holes 15 and 16, and a rear panel may be provided instead of the rear door 14. It is also possible to use the type that has been set.

The seal structure according to the present invention will be described below.
This will be described with reference to FIGS. This seal structure
For example, the present invention relates to a seal structure near the door 1 on the front side of the service cart shown in FIG. Needless to say, such a seal structure may be adopted also in the vicinity of the rear door 14, but the embodiment of FIGS. 1 and 2 relates to the seal structure in the vicinity of the front door 1, and here, the seal structure of the front side is used. The door 1 will be described as an example.

First, in this service cart, the vertical corner edge material 2 on one side of the door 1 is attached to the corresponding vertical corner edge material 4 on one side of the side panel 3 by the double hinge 5. The door 1 is moved from the closed state A shown in FIG. 1 to the 90 degree open state B shown by a solid line in FIG. 2 and further, as shown by an imaginary line in FIG. Up to 270 degree open state C facing the outer surface,
It can be opened and closed freely. That is, the corner-shaped material 2 of the vertical edge on one side (right side in the illustrated example) of the door 1 includes a main body 17 having a substantially square-shaped cross section with a bent front end, and a cross section of the base end side of the main body 17 substantially cross-section. The holding portion 18 having a concave shape is integrally molded, and the vertical end edge portion on one side of the door 1 is fitted and inserted in the space of the holding portion 18, and is assembled and fixed by adhesion, rivets or the like.
Further, the corner template 4 on one vertical edge of the side panel 3 (in the illustrated example, the vertical edge on the front side of the right side panel 3) is
Main body 19 having a substantially square cross section and holding portion 20 having a substantially concave cross section
Are integrally molded, and the vertical edge portion on one side of the side panel 3 is fitted and inserted in the space of the holding portion 20, and is assembled and fixed by adhesion, rivets, or the like.

The double hinge 5 is used for the corner material 2 of the door 1 and the corner material 4 of the side panel 3 as described above.
In the illustrated example, three pieces are attached between the upper and the lower part (see also FIG. 5). This double hinge 5 has one end
It is rotatably mounted in the main body 17 of the corner profile 2 of the door 1 by a vertical hinge pin 9, and the other end is in the main body 19 of the corner profile 4 of the side panel 3 in the vertical hinge pin 10. It is attached so that it can rotate. Therefore, the door 1 is
The hinge pin 9 can be rotated by 180 degrees around the hinge pin 9, and the hinge pin 10 can be rotated by 90 degrees around the hinge pin 9. As a result, from the closed state A to the 270 degree open state C through the 90 degree open state B. It can be opened and closed freely. In this way, the double hinge 5 is used to attach the door 1 and its corner mold member 2 to the side panel 3 and its corner mold member 4.

In the seal structure near the door 1 of the present invention, first, the corner member 2 of the door 1 is arranged so as to face the front side of the corner member 4 of the side panel 3 in the closed state A. In addition, a vertical ridge 21 that abuts against the corner profile 2 of the door 1 in the closed state A is provided on the front side of the corner profile 4 of the side panel 3, and the side profile of the side panel 3 is further increased. A sealing material 22 such as a sealing rubber, which is brought into contact with the corner material 2 of the door 1 in the closed state A, is fitted and held in the corner material 4 in a vertical groove 23 formed on the front side.

The seal structure will be described in more detail. First, the corner member 2 of the door 1 in the closed state A using the double hinge 5 has the corner member 4 of the side panel 3 as in the conventional example of this kind shown in FIG.
Is arranged to face the front side (outer side E of the service cart), not the inner side (inner side D of the service cart). Further, the corner member 4 of the side panel 3 is provided with a ridge 21 which is a vertical rib whose tip is in contact with the corner member 2 of the door 1 in the closed state A, from the inner side to the front side in the illustrated example. It is projected toward. The protrusion 21 in the illustrated example is formed by extending the inner side wall of the main body 19 of the corner mold member 4, but the protrusion 21 is provided at the center of the front side wall of the main body 19 regardless of the illustrated example. Or body part 1
The outer wall of 9 may be extended and formed. At the same time, a vertical groove 23 is formed on the front side of the corner member 4 of the side panel 3, and a sealing member 22 whose tip is pressed against the corner member 2 of the door 1 in the closed state A is formed in the vertical groove 23. The base end portion of is fitted and held. The vertical groove 23 in the illustrated example is formed near the inside of the main body portion 19 of the corner mold member 4 while being adjacent to the above-described inner ridge 21. It can also be formed in various places such as in the center of the front side wall and on the outer side.

The present invention is constructed as described above. Then it becomes as follows. As shown in FIG. 5, this service cart is provided with a box-shaped door 1 and casters 11, and stores articles in the inside D to keep it at a constant cooling temperature or heating temperature while providing various services. To be done. Then, as shown in FIGS. 1 and 2, the corner profile 2 on one vertical edge of the door 1 is rotated horizontally to the corner profile 4 on one vertical edge of the side panel 3 by a double hinge 5. Since the door 1 is movably attached, the door 1 can be opened and closed from the closed state A to the 90-degree open state B and further to the 270-degree open state C, that is, the open state facing the outer surface of the side panel 3. ing.

In the seal structure near the door 1 of this service cart, first, the corner mold member 2 of the door 1 is
In the closed state A of the door 1, they are arranged so as to face the front side of the corner profile 4 of the side panel 3, and the corner profile 4 of the side panel 3 abuts the corner profile 2 of the door 1 in the closed state A, A vertical rib 21 is projected, and a sealing material 22 that abuts the corner material 2 of the door 1 in the closed state A of the corner material 4 of the side panel 3 is fitted and held in the vertical groove 23. It becomes. Then, in the seal structure near the door 1 of the service cart, the following first, second, and third are as follows.

First, the corner material 2 of the door 1 is arranged so as to be opposed to the front side of the corner material 4 of the side panel 3 in the closed state A. By this,
First, the vertical ridges 21 and the vertical sealing members 22 for maintaining the airtightness between the corner member 2 of the door 1 and the corner member 4 of the side panel 3 in the closed state A are not provided on the side of the corner member 2 of the door 1 It can be provided on the side of the corner panel 4 of the side panel 3. Now, in the sealing structure near the door 1, in the closed state A of the door 1, the ridge 21 and the sealing material 22 on the side of the corner mold member 4 of the side panel 3 doubly form the corner mold member of the door 1. Since it is abutted against 2, the inside of the service cart D
And the outside E is completely shut off without a gap. For example, if the sealing material 22 such as sealing rubber is damaged for any reason,
Even if it deteriorates, the ridge 21 alone maintains and secures the immediate sealability. In this way, the airtightness of the vicinity of the door 1 is ensured, air does not leak or flow between the inside D and the outside E of the service cart, and the sealing property is improved.

Secondly, the sealing material 22 is formed vertically on the corner template 4 of the side panel 3 (not on the back side of the corner template 2 of the door 1) and on the front side thereof (not on the inside / inside D side). The groove 23 is fitted and held in the groove 23. Since the sealing material 22 is thus fixedly directed to the front side, for example, when the door 1 is opened to the 90 degree open state B and a tray or other article is put in or taken out from the inside D,
In this way, it does not interfere with articles that are taken in and out,
Further, when the door 1 is opened to the open state C of 270 degrees to move in the passage between the seats, it does not interfere with the seat of the outside E or the like. In other words, the sealing material 22 does not come into contact with or interfere with anything other than the corner mold material 2 of the door 1 in the closed state A, and therefore, the sealing material 22 is reliably prevented from being damaged or deteriorated.

Thirdly, since the sealing material 22 is adapted to be inserted and held in the vertical groove 23 on the front side of the corner type material 4 of the side panel 3 by the insertion method as described above, the sealing at the time of manufacturing is performed. Positioning and mounting of the material 22 and replacement after the maintenance are easy and easy.

[0027]

As described above, in the seal structure near the door of the service cart according to the present invention, in the closed state of the door, first, the corner profile of the door is positioned in front of the corner profile of the side panel. The vertical profile of the side panel corner profile that abuts the door corner profile, and the sealing material that also abuts in the vertical groove. The following effects are exhibited.

First, the sealing property is improved. That is,
In this seal structure near the door of the service cart, when the door is closed, the ridges on the side of the corner profile of the side panel and the seal material doubly abut the corner profile of the door. The exterior is completely shut off, ensuring airtightness and improving the sealing performance.

Secondly, damage to the sealing material such as sealing rubber,
Deterioration is also prevented. That is, in the seal structure near the door of this service cart, since the sealing material is held in front of the corner panel of the side panel, it does not come into contact with or interfere with anything other than the corner template of the door. Unlike the conventional example of this kind, when the door is opened, it does not interfere with the articles to be put in and taken out, the seat outside, etc., and the damage and deterioration of the sealing material can be prevented. In addition, in order to prevent such damage and deterioration of the sealing material, it is not necessary to take special care when putting in and taking out an article, and the work of taking in and out the article is facilitated. In addition, since the sealing material is prevented from being damaged or deteriorated in this way, the above-mentioned first sealing property is also improved from this aspect.

Thirdly, the positioning, attachment, replacement, etc. of the sealing material are simple and easy. That is, in the sealing structure near the door of this service cart, the sealing material is fitted and held in the vertical groove on the side of the corner type material of the side panel. It is easy and easy to replace and looks good. As described above, the effects of the present invention are remarkably large, such as the problems existing in this type of conventional example are eliminated.

[Brief description of drawings]

FIG. 1 is an explanatory plan view in section of a door closed state showing an embodiment of a seal structure near a door of a service cart according to the present invention.

FIG. 2 is an explanatory plan cross-sectional view of the door in an open state in the embodiment.

FIG. 3 is a plan cross-sectional explanatory view showing a seal structure near a door of a service cart according to a conventional example of this kind, in a closed state of the door.

FIG. 4 is an explanatory plan cross-sectional view of a door in an open state in the conventional example.

FIG. 5 is a perspective view of a service cart.

[Explanation of symbols]

 1 Door 2 Corner type material 3 Side panel 4 Corner type material 5 Double hinge 11 Caster 21 Projection 22 Seal material 23 Vertical groove A Closed state B 90 degree open state C 270 degree open state

Claims (1)

[Claims] 1. A seal structure near a door in a service cart provided with various services while accommodating articles inside and having a box-shaped door and casters, the service cart comprising: The corner profile on one vertical edge of the door is attached to the corresponding corner profile on one vertical edge of the side panel by a double hinge, and the door is opened from the closed state to the outer surface of the side panel. The door corner member is arranged so as to face the front side of the side panel corner member in the closed state, and the side panel corner member is in the closed state. A vertical strip that abuts against the corner member of the door is provided on the front side, and a sealing member that abuts against the corner member of the closed door is Seal structure near the service cart door fitted into the formed longitudinal grooves, that is held, characterized in.