Modular concept in camper trailer having portable corridor

A concept in camper trailers wherein a plurality of individual camper trailer units may be enjoined together when parked in a trailer camp so to form a dwelling of more variable floor plan shape; each camper trailer having a side door and a rear opening which are variable connected between the units by means of a portable corridor attachable therebetween.

SPECIFICATION 
This invention relates generally to camper trailers. 
It is generally well known among camper trailer enthusiasts that a 
conventional camper trailer is of rectangular floor plan shape so to be 
practical when travelling on a highway but which when parked for use as a 
dwelling lacks the floor plan variety of a conventional home, so that it 
is less satisfying particularly on extended times of residency when 
staying in one spot for a number of days or weeks. This situation is 
accordingly in want of an improvement. 
Therefore, it is a principal object of the present invention to provide a 
camper trailer that incorporates a modular concept so that it can be 
variably assembled in different floor plan shapes. 
Another object is to provide a modular concept in camper trailers wherein 
the same is constructed of several independent camper trailer units all of 
which can be towed behind an automobile on extended time trips or else 
only one may be taken for a short weekend trip. 
Still another object is to provide a modular concept in camper trailers 
wherein each unit includes at least one side door and a rear opening, and 
a portable corridor is readily connectable between any door or opening of 
either unit so that the camper trailer can be made in an L-shape. 
Other objects are to provide a modular concept in camper trailers which is 
simple in design, inexpensive to manufacture, rugged in construction, easy 
to use and efficient in operation.

Referring now to the drawing in detail, and more particularly to FIGS. 1 
through 4 thereof at this time, the reference numeral 10 represent a 
modular concept in camper trailers according to the present invention 
wherein the camper trailer is comprised of several camper trailer units 11 
and 12. While the drawing illustrates only a modular concept of only two 
units, it should be understood that it could consist of three or even more 
units. 
In the present invention each unit includes a box-like body 13 and chassis 
mounted upon wheels 14, and each unit includes at least one side door 15 
and an end or back opening 16. Additionally, a portable corridor 17 is 
provided for detachable connection between two units either by their side 
doors or end openings. 
The portable corridor consists of a four-sided, metal frame 18 in which 
each side is of channel shape so that winged bolts 19 can be fitted 
manually (without need of tools) through both flanges 20 of the channel, 
the winged bolts screwing into threaded openings provided in a frame 21 
around each side door or end opening. Thus the corridor is quickly and 
easily attached for allowing persons to walk between the units while 
sheltered from outside weather. 
As shown in FIGS. 1 and 2, either a single unit can be towed behind an 
automobile or else several units may be attached together in tandem for 
towing. 
In FIG. 5, a portable unit 22 of larger size than a corridor 17 can be 
mountable in either side door or end opening by use of wing bolts 
therebetween and the frames 21. Thus side doors or end openings, not used 
for communication between units are utilized for additional convenience. 
In another design of the invention, not shown, a separate unit could be 
included which serves either as a bathroom or as an extra bedroom. 
Referring now to FIGS. 6 and 7, another design of the invention 22 shows an 
extra room 23 being able to be formed along a side wall 24 of the trailer 
25, so that when parked, extra interior space for living is provided. This 
is accomplished by first pulling sidewardly out a panel 26 which normally 
is flush on its outer side with outer side of the side wall 24 so to be 
streamlined therewith during travel on a highway. The lower end of panel 
26 is fixedly integral with bars 27 that slide in channel rails 28 so to 
extend underneath the trailer body 29. After the panel is pulled out, then 
side panels 30 and 31 are swinged out on hinged 32 at the side edges of 
panel 26. Also top panel 33 and bottom panel 34 are pivoted outward from 
vertical position in opening 35 by means of hinges 36 and 37 respectively, 
so to form a roof and a floor for the room 23. All panels are locked 
together by wing bolts so to form a rigid structure. Thus a modified 
design is provided which may be used in addition to the structure 
described in FIGS. 1 to 5. 
In camper trailers of larger sizes, more than one door may be provided on 
each side so that instead of creating L-shaped floor plan assemblies, they 
may be T-shaped or otherwise. 
Thus various designs of the invention are indicated. 
While various changes may be made in the detail construction, it is 
understood that such changes will be within the spirit and scope of the 
present invention as is defined by the appended claims.