JPS6333554Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the mounting structure of a top member of an aircraft loading cart.

Aircraft carts (hereinafter simply referred to as ``carts'') are required to be lightweight and have a certain level of strength, so their bodies are generally made of panels with a sandwich structure made of honeycomb core, foamed resin, etc. However, since the surface plate of such a sandwich structure panel is made of thin plate material, when attaching other components with screws, bolts, etc., insert members must be placed at the attachment locations, or blind nuts, etc., must be used. The need arose. However, such work is extremely troublesome and has the disadvantage of making the cart expensive.Furthermore, in the case of a cart that has a side frame member erected on the top panel of the main body to prevent items from falling, As the mounting structure becomes more complicated,
Furthermore, users have pointed out that the heads of many screws, bolts, etc. are exposed, which is undesirable in terms of appearance. Therefore, as shown in FIG. 5, the mounting structure of the top members such as the top panel and side frame members in a conventional cart is made by extrusion molding aluminum material and has a lower fitting fitted to the upper end of the side panel 2 at the lower end. A fitting groove 30a, a side fitting groove 30b that fits into the side end of the upper panel 5 at the upper inner side of the lower fitting groove 30a, and a side frame portion 3 having a hollow structure above the fitting groove 30a.
The top panel 5 and the side panel 2 are firmly fixed with adhesive through the shaped member 30 integrally molded with 0c, and corner members (not shown) can be attached and detached to both ends of the side frame portion by appropriate means. A fixed mounting structure was used.

However, on passenger planes, ovens, etc. are used to serve towels, coffee, etc. to passengers.
When liquid containers land at the airport, they are transferred to new ones, but they are quite heavy and the compartments in which they are stored are located at the top of the gearbox, so it is difficult to take them out, especially when taking them out.
Since you have to pull out the equipment in an unstable position and support it, there is a high risk of damaging the equipment or injuring yourself if you accidentally drop it on the floor. Normally, the work is carried out by pulling out the cart restrained in the lower part, lowering the cart onto the cart as a platform, and then carrying it out of the machine. Therefore, if you accidentally drop an oven, liquid container, etc. onto the cart, the impact may damage the top surface of the cart, especially the top panel, side frame, etc. If the parts are damaged and these parts are to be removed for repair or replacement, the top panel and the parts cannot be removed because the top panel is firmly fixed to the side panel via the shaped part with the side frame. In addition to being extremely difficult to remove, the side panels may also be damaged during removal, requiring a great deal of time and expense to repair. Therefore, there has been a need for a cart with a mounting structure that allows easy replacement of the top surface member.

The present invention was developed in view of the above-mentioned circumstances, and by configuring the top panel and other top members to be easily attached and detached without exposing a large number of screws, etc., the present invention prevents any damage to the side panels, etc. The purpose is to propose a mounting structure for the top surface member of a cart that makes it easy to replace a damaged top surface member without causing damage, saves a large amount of time and cost required for repair, and also does not damage the appearance. That is.

Hereinafter, the present invention will be explained based on an embodiment shown in the drawings. In Figures 1 and 2, 1 is the cart body, 2 and 2 are side panels formed of honeycomb sand germanch panels, and each of the side edges of the side panels 2 and 2 is provided with a vertical wall made of aluminum. The frame member 3 is fixed to the side panel 2 by integrally formed clamping pieces 3a, 3a so as to cover the side end portions of the side panel 2. Reference numerals 4 and 4 indicate upper edge frame members made of aluminum shapes, and these upper edge frame members 4 and 4 have clamping pieces 4 for clamping them to the upper end portions of the side panels 2 and 2 in cross section.
A, 4a are provided at both ends of the lower surface, and a plurality of screw holes 4b, 4a are provided on the upper surface at predetermined intervals at positions closer to the inside.
Locking pieces 4c are erected at positions 4b, . This stepped portion 4d and the vertical frame member 3 are each sandwiched with an adhesive at the upper end of the side panel 2 so as to be horizontal. Reference numeral 5 designates a top panel formed of a honeycomb sand germanch panel, and each corner of this top panel 5 is formed with a notch 5a for attaching a corner member 8, and the front and rear edges are provided with both ends. edge members 7, 7 made of aluminum shapes with insert members 6 embedded in each part;
are fixed with adhesive, and screw insertion holes 5b, 5b are provided at both end edges at positions corresponding to the plurality of screw holes 4b, 4b, . . . provided in the upper edge frame members 4, 4, respectively. ,... are drilled.
8, 8, ... are corner members made of aluminum shapes, and these are the main bodies 8a of the respective corner members 8.
A recessed portion 2a is formed by cutting out a honeycomb core at both upper corners of the side panel 2 on the lower surface and inner end surface.
Fitting protrusions 8b and 8c that fit into the hollow portion of the main body 9a of the side frame member 9, which will be described later, are integrally provided. 3a and the screw insertion hole 3b drilled in the inner surface plate of the side panel 2, and the fitting protrusion 8c has a screw insertion hole drilled in the end inner wall of the side frame member 9. Screw holes 8b' and 8c' are formed at positions corresponding to 9b and 9b, respectively, and the upper surface panel 5 of the corner member main body 8a
A screw insertion hole 8a' is provided at a position corresponding to the screw hole 6a formed in the insert member 6 embedded in the edge member 7. 9, 9 are side frame members made of aluminum shapes, and this side frame member 9 is constructed as follows. That is, this side frame member 9 has a length equal to the length of the side edge of the top panel 5, and has a hollow structure main body part 9a with a longitudinally rectangular cross section.
A pair of locking pieces 9c for attaching a protection member 10, which will be described later, is erected across the entire length of the upper part, and the thickness of the upper surface panel 5 is set at the lower part so as to extend the outer wall. A decorative piece 9d of approximately the same height as the decorative piece 9d is vertically provided, and when the side frame member 9 is attached on top of the top panel 5, an upper edge member is placed in the empty space between the decorative piece 9d and the end face of the top panel 5. By engaging the locking pieces 4c of No. 4, the edge surface treatment of the top panel 5 and the displacement of the side frame member 9 are prevented. Further, screw insertion holes 9e are provided on the top and bottom sides of the main body 9a at positions corresponding to the screw holes 4b of the upper edge member 4, respectively.
9f is drilled. A protective member 10 is made of an elastic material such as rubber or plastic and has the same length as the side frame member 9. This protective member 10 has an upper end portion having an arcuate cross section and has approximately the same width as the side frame member 9. It consists of a head portion 10a and a body portion 10b, and an engagement groove 10c that engages with a locking piece 9c is formed along the entire length on both sides of the body portion 10b, so that it can be detachably attached to the side frame member 9. The upper end portion of the corner member 8 is set to coincide with the upper end portion of the corner member 8 in the attached state.

Note that 11 is a handle with a hollow structure, and both ends of the handle 11 are fitted into fitting protrusions 8d provided on the inner surface of the corner member 8, and the lower side peripheral wall and the fitting protrusions 8d are fixed with screws. is configured to do so. Reference numeral 12 denotes doors disposed on both front and rear end surfaces of the cart body 1 so as to be openable and closable. 1
3, 13, . . . are screws for screwing each member.

In order to attach each upper surface member configured as described above to the cart main body 1, first, the edge members 7,
Screw insertion holes 5b, 5 of the top panel 5 with 7 attached
b, ... are the screw holes 4b, 4b, ... of the upper edge frame member 4.
Place it on the upper edge frame members 4, 4 so as to match...
On the other hand, the fitting protrusions 8c of the corner member 8 are fitted to both ends of the main body part 9a of the side frame member 9, and the fitting protrusions 8c and the inner wall of the side frame member 9 are fixed with screws 13, so that each Assemble the side frames, then attach the handles 11 between the corner members 8 of the both side frames, and assemble the both side frames integrally.
The side frame member 9 is placed on the main body 1 so as to fit into the recessed part 2a of the side panel 2, so that the side frame member 9 is placed on the top panel 5, and then the upper side of the side frame member 9,
The side frame member 9 is connected to the upper edge frame member 4 by the screws 13 inserted through the screw insertion holes 9e and 9f provided at the bottom.
By screwing into the top panel 5, the top panel 5 is also securely fixed at the same time. Further, each corner member 8 has a screw 13 inserted through an inner clamping piece 3a of the vertical frame member 3 and a screw insertion hole 3b provided through the inner surface plate of the side panel 2. By screwing into the vertical frame member 3, the insert member 6 embedded in the edge member 7 is firmly screwed by the screw 13 inserted into the screw insertion hole 8a' provided in the main body 8a. The protective member 10 has its engagement groove 10
By engaging c with the locking piece 9c, the side frame member 9
It can be attached to the upper end of the.

When removing each top surface member from the cart main body 1, remove the protective member 10, and then remove each screw 13, 13... that screws the side frame member 9 and corner member 8 to the main body 1. The top member can be easily removed.

Regarding the installation of each upper surface member, the procedure for assembling both side frames integrally in advance and then mounting them on the main body 1 has been explained.
The corner member 8 to which the handle 11 is attached may be attached to the side frame member 9 and the main body 1 after the corner member 8 is attached on the top panel 5.

In the embodiments described above, a cart is described in which doors are provided on both end faces of the main body. However, in a cart having a door only on the front end face, the mounting structure of the top panel 5 and the rear panel 21 is as shown in FIG. 3, for example. As shown in FIG. 2, an insert member 22 is embedded in the upper end of the rear panel 21, and clamping pieces 7a, 7a are placed at a predetermined interval on the lower surface of the edge member 7 attached to the rear edge of the upper panel 5. It may be installed vertically and the inner clamping piece 7a and the insert member 22 may be screwed together with screws 13, or the upper edge frame member 23 may be fixed to the upper end of the rear panel 21 as shown in FIG. On the other hand, a mounting piece 7b is vertically provided on the lower surface of the edge member 7 of the upper panel 5, and this mounting piece 7b
The upper edge member 23 may be screwed onto the upper edge member 23 using the screw 13.

As detailed above, according to the mounting structure of the top member of the aircraft cart according to the present invention, all the cart top members such as the top panel, side frame members, corner members, etc. do not damage the side panels, etc. In addition to being structured so that it can be easily attached and detached without any problems, the mounting structure only exposes a portion of the mounting screws on the outer surface, making it easy to replace the top surface member and saving a lot of time needed for repairs. The various problems that conventional carts of this type had have been eliminated, such as a significant cost reduction and no damage to the appearance, and the effects are remarkable and significant.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of a cart in which the present invention is implemented and the top member is attached, Fig. 2 is an exploded perspective view of section A in Fig. 1, and Figs. 3 and 4 are other embodiments. FIG. 5 is a sectional view of a main part of a conventional example. In the diagram 1...cart body, 2...side panel, 3
...Vertical frame member, 4, 23... Upper edge frame member, 4b...
...Screw hole, 5...Top panel, 5a...Notch, 5b...Screw insertion hole, 7...Edge member, 8...
corner member, 9... side frame member, 9a... main body,
9c...Locking piece, 9e, 9f...Screw insertion hole, 1
0...protective member, 11...handle, 12...door, 13...screw, 21...rear panel.

Claims (1)

[Scope of utility model registration request] An upper edge frame that is fixed to the upper ends of both side panels and has a plurality of threaded portions formed at predetermined intervals on the upper surface of an aircraft-mounted cart that has side frames erected on both edges of the upper surface of the main body. A notch for mounting a corner member is formed on each corner of the member, screw insertion holes corresponding to the plurality of threaded portions of the upper edge member are formed on both side edges, and screw insertion holes are formed on the front and rear edges, respectively. Place the top panel with the edge member attached thereon so that the screw insertion holes match the threaded portions, and have the same length as the side edges on both side edges of the top panel;
A side frame member having screw insertion holes configured to be screwed into the plurality of threaded portions of the upper edge member and having a locking portion for attaching a protective member on the upper part is superimposed, and the side frame By screwing the members into the threaded portions, the upper surface panel is fixed in a pinched manner, and vertical holes provided at both ends of the side frame members, at the ends of the side frame portions, and at the corners of the main body. The corner members configured to be removably fixed to each of the upper end portion of the frame member and the end portion of the edge member by appropriate attachment means provided therebetween are fixedly attached to each of the members, and the corner members are fixedly attached to the respective members, and 1. A mounting structure for an upper surface member of an aircraft-mounted cart, characterized in that a protective member is removably attached to the top surface of the cart.