CA1069225A - Mattress-supporting bunk assembly for trucks - Google Patents
Mattress-supporting bunk assembly for trucksInfo
- Publication number
- CA1069225A CA1069225A CA303,213A CA303213A CA1069225A CA 1069225 A CA1069225 A CA 1069225A CA 303213 A CA303213 A CA 303213A CA 1069225 A CA1069225 A CA 1069225A
- Authority
- CA
- Canada
- Prior art keywords
- frame
- frame assembly
- floor
- roller
- frames
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/32—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use
- B60N2/34—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use into a bed
Abstract
ABSTRACT OF THE DISCLOSURE
A bunk assembly for supporting a mattress above the floor of a sleeping compartment of a truck has a lower frame the longitudinal axis of which extends transversely of the corresponding axis of the truck. Corner supports attach the lower frame to the compartment floor and allow the frame to reciprocate to a limited or controlled extent in direc-tions towards the front and rear of the vehicle. An upper frame for supporting the mattress is secured to the lower frame by corner springs which absorb vertically imposed shock loads. Opposite ends of the lower and upper frames are interconnected by hinges which allow the latter frame to move only longitudinally of the former frame. Resilient braces also interconnect the two frames to further limit the folding action provided by the hinges which is resisted by the springs.
A bunk assembly for supporting a mattress above the floor of a sleeping compartment of a truck has a lower frame the longitudinal axis of which extends transversely of the corresponding axis of the truck. Corner supports attach the lower frame to the compartment floor and allow the frame to reciprocate to a limited or controlled extent in direc-tions towards the front and rear of the vehicle. An upper frame for supporting the mattress is secured to the lower frame by corner springs which absorb vertically imposed shock loads. Opposite ends of the lower and upper frames are interconnected by hinges which allow the latter frame to move only longitudinally of the former frame. Resilient braces also interconnect the two frames to further limit the folding action provided by the hinges which is resisted by the springs.
Description
~69Z25 This invention relates to a type of bed construc-tion which is particularly intended for use in freight trucks and the like.
It has become common practice to employ two drivers on trucks which are required to travel long dis-tances necessitating day and night travel. One driver rests and attempts to sleep while the other drives and the move-ment of the truck, particularly when rough road conditions are encountered, make it very difficult to get proper rest or sleep. Normally, a bed is installed in the cab of a track to extend across the cab in the same manner as the driver's seat and conventional compression springs usually are relied upon to cushion vertical displacement of the mattress support which the resting driver would otherwise ; 15 find distressing. A particularly disturbing movement of a mattress support in a truck is the rapid sideways movement -caused when the tractor cab rocks back and forth about a transverse axis. This rocking movement about a pitch axis is exaggerated in the upper parts of the cab where the bunk is located and the tendency is to roll the resting driver off his bunk. Mattress supports have previously been design to reduce some of these sleep-disburbing movements but none of the known supports offer a completely satisfactory solution to the rapid sideways movement experienced by a ` 25 driver stretched out on a mattress which extends transverse to the longitudinal axis of the vehicle. Finally, there is ' always a certain amount of rocking or side-to-side motion in : .: . ;:., the cab and this is increased when the truck is changing ~' lanes at high speeds or during normal turns. This side :
.: ~
swaying motion about a rolling axis is exaggerated in the upper part of the truck cab and a resting driver finds this ~ -1- ~ :'"-"' ' : . : -.~ : .
1~6gZ2S
disturbing as well.
The present invention provides a type of bed or bunk construction which cushions or absorbs much of the above mentioned road shocks and which is particularly effective in dampening the pitching motion a resting driver experiences as a sideways rolling motion. Thus, a driver is able to rest on the present bed construction in relative comfort so as to feel refreshed when it is his turn to take the wheel.
More specifically, a mattress-supporting bunk assembly for trucks according to the present invention may be defined as a bed construction which is adapted to be installed on the floor of a sleeping compartment of a highway vehicle and comprises a frame assembly, mounting means supporting corners of the frame assembly above the floor with the longitudinal axis of said assembly extending transversely of the corresponding axis of the vehicle, said mounting means each including vertically opposed support ~` members secured one to the frame assembly and one to the ` floor, a roller journalled on one of the support members of each mounting means for rotation about an axis substantially -parallel to the longitudinal axis of the frame assembly, and a curved track on the other support member of each mounting means engaging each roller, said curved tracks each having a -25 radius of curvature centered on a point vertically spaced `
from and eccentrically disposed with respect to the axis of rotation of the adjacent roller.
In dra~ings which illustrate a preferred embodi-ment of the invention, Figure 1 is a perspective view of a frame assembly ' '.'' ' 1~69~ 5 constructed in accordance with the present invention, Figure 2 is a longitudinal section, part broken away, taken on the line 2-2 of Figure 1, Figure 3 is a vertical slection taken on the line 3-3 of Figure 2, Figure 4 is an enlarged horizontal section taken on the line 4-4 of Figure 1, Figure 5 is a longitudinal section taken on the line 5-5 of Figure 4, and Figure 6 is a vertical section taken on the line 6-6 of Figure 5.
In the drawings, the numeral 10 indicates gen-erally a mattress-supporting frame assembly constructed in accordance with the present invention. The assembly is shown mounted on a floor 12 of the sleeping compartment of a long-hall truck which has two drivers who-take turns occu-pying the bunk and driving the vehicle.
The assembly 10 comprises rectangular upper and lower frames 14 and 15. These frames are spaced apart at each corner of the assembly by compression springs 16. End hinges 17 interconnect the two vertically spaced frames of the assembly. In addition, the two frames are joined together by diagonally extending braces 18.
The upper frame generally indicated at 14 has side , ` 25 and end members 20 and 21 formed of angle material. At each of its four corners, the upper frame is reinforced by a horizontal corner plate 22. Longitudinal and transverse straps 23 and 24 (shown broken away in Figure 1 only) are strung between t]he frame members to support a mattress which ~ .
has purposely been omitted from the drawings for sake of ' ~ ,'":
~ -3-' ' ' ~0692Z5 clarity.
The lower frame generally indicated at 15 is formed of similar angle lengths to provide side and end members 26 and 27. Large, horizontally disposed corner 5 plates 28 brace the frame 15 against diagonal distortion but otherwise the lower frame is open to the floor 12 on which the frame assembly is mounted.
The frame 15 is supported above the frame 14 by the coil springs 16, there being one such spring at each corner of the assembly. The opposite ends of the heavy, wide-diameter coil springs 16 bear against opposing faces of the corner plates 22 and 28, the ends being suitably secured to these corner plates so that the springs cannot be dis-placed when the upper frame is moved towards and away from the lower frame.
As previously mentioned, the two frames of the ~ ~-assembly 10 are also interconnected by the hinges which are . :
generally indicated at 17. As shown best in Figures 2 and 3, the hinges 17 are located one at each opposite end of the ~-frame assembly. Each hinge is formed of members 32 and 33 which are interconnected at their overlapping edges by a -hinge pin 34. The end members 21 and 27 of the upper and lower frames are provided with transversely spaced lugs 35 and 36 and other hinge pins 3/ and 38 secure opposite ends ~ ~`
of the hinge members to these lugs with the hinge members sloping inwardly towards the center of the assembly. Thus, if a downwardly directed load is imposed on one of the end ` members of the upper frame, the hinge at that end of the assembly will fold inwardIy with the folding movement being . .. . .
resisted by the adjacent coil springs. It will be noticed that the several hinge pins are disposed parallel to one -~
b .'`,` - '''''' 1~692ZS
another and at right angles to the longitudinal axis of the frame assembly 10.
The coil spring 16 and the hinges 17 allow the upper frame to be moved up and down as well as endways relative to the lower frame. However, such movement is resisted by the braces generally indicated at 18. As shown best in Figures 2 and 3, the braces 18 comprise lengths of cable 42 which are each fitted with a spring 43. These springs are suitably secured to the lugs 35 and 36 on the end members of the two frames so that the cables extend diagonally of the assembly and are transversely spaced apart. Thus, the upper frame can be loaded at either end so as to be pushed towards the lower frame but this distortion ` of the bunk assembly is resisted not only by the coil springs 16 but also by the action of the springs 43 on the - cable braces.
In order to function properly, the present sleeping -~
bunk for a truck driver must be mounted so that the longi-tudinal axis of the frame assembly 10 is disposed at right ~ ;
20 angles to the longitudinal axis of the vehicle. The present -~
frame is supported above the floor 12 of the sleeping compartment in the required transversely-extending position -~ by mounting means generally indicated at 50. The means 50 ~ --at each corner of the assembly is shown in detail in Figures .
, . .
4, 5 and 6 as comprising a rectangular plate 52. Bolts 53 secure this plate to the floor 12. Mounted on the floor ;
: . - .
; plate 52, are closely spaced rollers 56 and 57. Roller 56 rotates about a spindle 58 which extends between a pair of brackets 59 carried by the floor plate. The horizontal spindle 58 supports the roller in a vertical position and so -, ~ ~'' ....
. ., - .
, .. :. , . ~ - . , .
" ~
. . .
the axis of rotation of the roller parallel to the longi-tudinal axis of the frame assembly 10. The horizontally disposed roller 57 is mounted on a post 60 carried by the floor plate 52 and so as to be rotatable about a vertical axis with the outer edge of the roller being close to and only slightly above the horizontal axis of the spindle 58.
Each of the mounting means 50 includes a track 62 and, preferably, the corner plate 28 is cut and shaped to ; form the upwardly curving track, see particularly Figure 5.
The formation of this track provicles the corner plate with parallel side edges 63 and 64 which are at right angles to the longitudinal axis of the frame assembly. The track 62 rests on the vertical roller 56 and the side edge 63 bears against the periphery of the horizontal roller 57. Mounting 15 means of this type at each of the four corners of the frame -assembly enable the assembly to move transversely to a slight extent but the rollers 57 engaging their adjacent side edges 63 prevent the lower frame 15 of the assembly from moving longitudinally relative to the sleeping com-partment floor, A truck rolling along a highway tends to bounce upand down for some extent even when the road surface is -, fairly smooth. This vibrational movement is particularly ~ -noticeable in the cab of a truck-trailer unit which is occupied by both drivers of the vehicle. The tractor, of , course, weighs much less than the trailer and the load -imposed upon the fifth wheel of the tractor is closer to the rear wheels than to the front wheels. These weight and load ~; factors explain some of the vertical bouncing the drivers ., f ....
have to contend with and there is a lesser amount of side-.~, .. .
' '.
:, ,. ~
,-'' ' ' 1~6922S
sway as well.
The bouncing movement becomes a pitching or rocking movement of the tractor cab about a transverse axis and a spare driver trying to rest in a bed extending across the length of the cab is rocked from side to side in a conventional truck bunk and finds this particularly dis-turbing. However, the present invention absorbs and cus-hions such rocking movements mainly because of the mounting means 50. The drivers weight on the frame assembly 10 tends to keeps the rollers 56 directly beneath the highest points of the tracks 62, or in that position shown best in Figure 5. As the floor 12 rocks back and forth due to the above-described pitching movement, the inertia resulting from the combined weight of the driver and the frame assembly tends ; 15 to hold the assembly stationary while the rollers 56 travel ` back and forth to a slight extent at least along the curved `.
tracks 62. Thus, a great deal of the sleep-disturbing bouncing and rocking movement is absorbed by the present invention and the spare driver is able to rest in relative ` 20 comfort. Sidesway is taken care of by the combined action : of the springs 16, the hinges 17, and the spring-loaded .:
.
braces 18.
, - ~
'.' ~ -, ' :, -, ~ '.
'~ ' :' .' ~: 7
It has become common practice to employ two drivers on trucks which are required to travel long dis-tances necessitating day and night travel. One driver rests and attempts to sleep while the other drives and the move-ment of the truck, particularly when rough road conditions are encountered, make it very difficult to get proper rest or sleep. Normally, a bed is installed in the cab of a track to extend across the cab in the same manner as the driver's seat and conventional compression springs usually are relied upon to cushion vertical displacement of the mattress support which the resting driver would otherwise ; 15 find distressing. A particularly disturbing movement of a mattress support in a truck is the rapid sideways movement -caused when the tractor cab rocks back and forth about a transverse axis. This rocking movement about a pitch axis is exaggerated in the upper parts of the cab where the bunk is located and the tendency is to roll the resting driver off his bunk. Mattress supports have previously been design to reduce some of these sleep-disburbing movements but none of the known supports offer a completely satisfactory solution to the rapid sideways movement experienced by a ` 25 driver stretched out on a mattress which extends transverse to the longitudinal axis of the vehicle. Finally, there is ' always a certain amount of rocking or side-to-side motion in : .: . ;:., the cab and this is increased when the truck is changing ~' lanes at high speeds or during normal turns. This side :
.: ~
swaying motion about a rolling axis is exaggerated in the upper part of the truck cab and a resting driver finds this ~ -1- ~ :'"-"' ' : . : -.~ : .
1~6gZ2S
disturbing as well.
The present invention provides a type of bed or bunk construction which cushions or absorbs much of the above mentioned road shocks and which is particularly effective in dampening the pitching motion a resting driver experiences as a sideways rolling motion. Thus, a driver is able to rest on the present bed construction in relative comfort so as to feel refreshed when it is his turn to take the wheel.
More specifically, a mattress-supporting bunk assembly for trucks according to the present invention may be defined as a bed construction which is adapted to be installed on the floor of a sleeping compartment of a highway vehicle and comprises a frame assembly, mounting means supporting corners of the frame assembly above the floor with the longitudinal axis of said assembly extending transversely of the corresponding axis of the vehicle, said mounting means each including vertically opposed support ~` members secured one to the frame assembly and one to the ` floor, a roller journalled on one of the support members of each mounting means for rotation about an axis substantially -parallel to the longitudinal axis of the frame assembly, and a curved track on the other support member of each mounting means engaging each roller, said curved tracks each having a -25 radius of curvature centered on a point vertically spaced `
from and eccentrically disposed with respect to the axis of rotation of the adjacent roller.
In dra~ings which illustrate a preferred embodi-ment of the invention, Figure 1 is a perspective view of a frame assembly ' '.'' ' 1~69~ 5 constructed in accordance with the present invention, Figure 2 is a longitudinal section, part broken away, taken on the line 2-2 of Figure 1, Figure 3 is a vertical slection taken on the line 3-3 of Figure 2, Figure 4 is an enlarged horizontal section taken on the line 4-4 of Figure 1, Figure 5 is a longitudinal section taken on the line 5-5 of Figure 4, and Figure 6 is a vertical section taken on the line 6-6 of Figure 5.
In the drawings, the numeral 10 indicates gen-erally a mattress-supporting frame assembly constructed in accordance with the present invention. The assembly is shown mounted on a floor 12 of the sleeping compartment of a long-hall truck which has two drivers who-take turns occu-pying the bunk and driving the vehicle.
The assembly 10 comprises rectangular upper and lower frames 14 and 15. These frames are spaced apart at each corner of the assembly by compression springs 16. End hinges 17 interconnect the two vertically spaced frames of the assembly. In addition, the two frames are joined together by diagonally extending braces 18.
The upper frame generally indicated at 14 has side , ` 25 and end members 20 and 21 formed of angle material. At each of its four corners, the upper frame is reinforced by a horizontal corner plate 22. Longitudinal and transverse straps 23 and 24 (shown broken away in Figure 1 only) are strung between t]he frame members to support a mattress which ~ .
has purposely been omitted from the drawings for sake of ' ~ ,'":
~ -3-' ' ' ~0692Z5 clarity.
The lower frame generally indicated at 15 is formed of similar angle lengths to provide side and end members 26 and 27. Large, horizontally disposed corner 5 plates 28 brace the frame 15 against diagonal distortion but otherwise the lower frame is open to the floor 12 on which the frame assembly is mounted.
The frame 15 is supported above the frame 14 by the coil springs 16, there being one such spring at each corner of the assembly. The opposite ends of the heavy, wide-diameter coil springs 16 bear against opposing faces of the corner plates 22 and 28, the ends being suitably secured to these corner plates so that the springs cannot be dis-placed when the upper frame is moved towards and away from the lower frame.
As previously mentioned, the two frames of the ~ ~-assembly 10 are also interconnected by the hinges which are . :
generally indicated at 17. As shown best in Figures 2 and 3, the hinges 17 are located one at each opposite end of the ~-frame assembly. Each hinge is formed of members 32 and 33 which are interconnected at their overlapping edges by a -hinge pin 34. The end members 21 and 27 of the upper and lower frames are provided with transversely spaced lugs 35 and 36 and other hinge pins 3/ and 38 secure opposite ends ~ ~`
of the hinge members to these lugs with the hinge members sloping inwardly towards the center of the assembly. Thus, if a downwardly directed load is imposed on one of the end ` members of the upper frame, the hinge at that end of the assembly will fold inwardIy with the folding movement being . .. . .
resisted by the adjacent coil springs. It will be noticed that the several hinge pins are disposed parallel to one -~
b .'`,` - '''''' 1~692ZS
another and at right angles to the longitudinal axis of the frame assembly 10.
The coil spring 16 and the hinges 17 allow the upper frame to be moved up and down as well as endways relative to the lower frame. However, such movement is resisted by the braces generally indicated at 18. As shown best in Figures 2 and 3, the braces 18 comprise lengths of cable 42 which are each fitted with a spring 43. These springs are suitably secured to the lugs 35 and 36 on the end members of the two frames so that the cables extend diagonally of the assembly and are transversely spaced apart. Thus, the upper frame can be loaded at either end so as to be pushed towards the lower frame but this distortion ` of the bunk assembly is resisted not only by the coil springs 16 but also by the action of the springs 43 on the - cable braces.
In order to function properly, the present sleeping -~
bunk for a truck driver must be mounted so that the longi-tudinal axis of the frame assembly 10 is disposed at right ~ ;
20 angles to the longitudinal axis of the vehicle. The present -~
frame is supported above the floor 12 of the sleeping compartment in the required transversely-extending position -~ by mounting means generally indicated at 50. The means 50 ~ --at each corner of the assembly is shown in detail in Figures .
, . .
4, 5 and 6 as comprising a rectangular plate 52. Bolts 53 secure this plate to the floor 12. Mounted on the floor ;
: . - .
; plate 52, are closely spaced rollers 56 and 57. Roller 56 rotates about a spindle 58 which extends between a pair of brackets 59 carried by the floor plate. The horizontal spindle 58 supports the roller in a vertical position and so -, ~ ~'' ....
. ., - .
, .. :. , . ~ - . , .
" ~
. . .
the axis of rotation of the roller parallel to the longi-tudinal axis of the frame assembly 10. The horizontally disposed roller 57 is mounted on a post 60 carried by the floor plate 52 and so as to be rotatable about a vertical axis with the outer edge of the roller being close to and only slightly above the horizontal axis of the spindle 58.
Each of the mounting means 50 includes a track 62 and, preferably, the corner plate 28 is cut and shaped to ; form the upwardly curving track, see particularly Figure 5.
The formation of this track provicles the corner plate with parallel side edges 63 and 64 which are at right angles to the longitudinal axis of the frame assembly. The track 62 rests on the vertical roller 56 and the side edge 63 bears against the periphery of the horizontal roller 57. Mounting 15 means of this type at each of the four corners of the frame -assembly enable the assembly to move transversely to a slight extent but the rollers 57 engaging their adjacent side edges 63 prevent the lower frame 15 of the assembly from moving longitudinally relative to the sleeping com-partment floor, A truck rolling along a highway tends to bounce upand down for some extent even when the road surface is -, fairly smooth. This vibrational movement is particularly ~ -noticeable in the cab of a truck-trailer unit which is occupied by both drivers of the vehicle. The tractor, of , course, weighs much less than the trailer and the load -imposed upon the fifth wheel of the tractor is closer to the rear wheels than to the front wheels. These weight and load ~; factors explain some of the vertical bouncing the drivers ., f ....
have to contend with and there is a lesser amount of side-.~, .. .
' '.
:, ,. ~
,-'' ' ' 1~6922S
sway as well.
The bouncing movement becomes a pitching or rocking movement of the tractor cab about a transverse axis and a spare driver trying to rest in a bed extending across the length of the cab is rocked from side to side in a conventional truck bunk and finds this particularly dis-turbing. However, the present invention absorbs and cus-hions such rocking movements mainly because of the mounting means 50. The drivers weight on the frame assembly 10 tends to keeps the rollers 56 directly beneath the highest points of the tracks 62, or in that position shown best in Figure 5. As the floor 12 rocks back and forth due to the above-described pitching movement, the inertia resulting from the combined weight of the driver and the frame assembly tends ; 15 to hold the assembly stationary while the rollers 56 travel ` back and forth to a slight extent at least along the curved `.
tracks 62. Thus, a great deal of the sleep-disturbing bouncing and rocking movement is absorbed by the present invention and the spare driver is able to rest in relative ` 20 comfort. Sidesway is taken care of by the combined action : of the springs 16, the hinges 17, and the spring-loaded .:
.
braces 18.
, - ~
'.' ~ -, ' :, -, ~ '.
'~ ' :' .' ~: 7
Claims (8)
1. Bed construction adapted to be installed on the floor of a sleeping compartment of a highway vehicle comprising; a frame assembly, mounting means supporting corners of the frame assembly above the floor with the longitudinal axis of said assembly extending transversely of the corresponding axis of the vehicle, said mounting means each including vertically opposed support members secured one to the frame assembly and one to the floor, a roller journalled on one of the support members of each mounting means for rotation about an axis substantially parallel to the longitudinal axis of the frame assembly, and a curved track on the other support member of each mounting means engaging each roller, said curved tracks each having a radius of curvature centered upon a point vertically spaced from and eccentrically disposed with respect to the axis of rotation of the adjacent roller.
2. Bed construction as claimed in claim 1, in which said frame assembly comprises rectangular upper and lower frames, and including spring means interposed between the upper and lower frames for resisting compressive loads applied to said upper frame.
3. Bed construction as claimed in claim 2, and including hinge means interconnecting the upper and lower frames to prevent relative movement therebetween only about axes disposed at right angles to the longitudinal axis of the frame assembly.
4. Bed construction in as claimed in claim 2 or claim 3, and including resilient bracing means intercon-necting the lower and upper frames whereby to resist move-ment of the upper frame towards the lower frame.
5. Bed construction adapted to be installed on the floor of a sleeping compartment of a highway vehicle comprising; a frame assembly formed of rectangular lower and upper frames having vertically spaced end members, a com-pression spring between each adjacent corner of the lower and upper frames, hinge means interconnecting the end members at opposite ends of the frame assembly and per-mitting movement of the upper frame towards and away from the lower frame only about axes disposed at right angles to the longitudinal axis of said frame assembly, and mounting means beneath each corner of the lower frame supporting the frame assembly above the floor and with a longitudinal axis of said assembly transverse to a corresponding axis of the highway vehicle, said mounting means each comprising a floor plate and a corner plate, a vertical roller journalled on each floor plate for rotation about an axis parallel to the longitudinal axis of the frame assembly, said corner plates each having a curved track bearing on an adjacent vertical roller, said curved tracks having axes of curvature centered upon points vertically spaced from and eccentrically dis-posed with respect to adjacent vertical rollers.
6. Bed construction as claimed in claim 5, and including a pair of bracing cables diagonally intercon-necting opposite end members of the lower and upper frames, and compression springs incorporated in each of the pair of bracing cables.
7. Bed construction as claimed in claim 5 or claim 6, in which said mounting means also includes a horizontally roller mounted on each floor plate adjacent the vertical roller, and said corner plates each having a guide member engaging an adjacent horizontal roller to prevent longitudinal movement of the frame assembly.
8. Bed construction as claimed in claim 5, in which said hinge means at each opposite end of the frame assembly comprises hinge members swingingly secured along opposite edges thereof to the end members and being united at overlapping edges thereof by a hinge pin whereby said hinge members converge inwardly from said end members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA303,213A CA1069225A (en) | 1978-05-12 | 1978-05-12 | Mattress-supporting bunk assembly for trucks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA303,213A CA1069225A (en) | 1978-05-12 | 1978-05-12 | Mattress-supporting bunk assembly for trucks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1069225A true CA1069225A (en) | 1980-01-01 |
Family
ID=4111462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA303,213A Expired CA1069225A (en) | 1978-05-12 | 1978-05-12 | Mattress-supporting bunk assembly for trucks |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1069225A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6493886B1 (en) * | 2000-10-04 | 2002-12-17 | Jeffrey D. Vanpage | Mattress suspension system for a vehicle |
| US7744142B2 (en) | 2003-07-31 | 2010-06-29 | Lippert Components, Inc. | Strap bed lift |
| US9656590B2 (en) | 2014-05-15 | 2017-05-23 | Lippert Components, Inc. | Bed lift mounting member |
-
1978
- 1978-05-12 CA CA303,213A patent/CA1069225A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6493886B1 (en) * | 2000-10-04 | 2002-12-17 | Jeffrey D. Vanpage | Mattress suspension system for a vehicle |
| US7744142B2 (en) | 2003-07-31 | 2010-06-29 | Lippert Components, Inc. | Strap bed lift |
| US8038193B2 (en) | 2003-07-31 | 2011-10-18 | Lippert Components, Inc. | Strap bed lift |
| US9656590B2 (en) | 2014-05-15 | 2017-05-23 | Lippert Components, Inc. | Bed lift mounting member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |