Various other objects, features and attendant advantages of the present invention will become fully appreciated as the same becomes better understood when considered in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the several views, and wherein:
a is a top view of the front right corner of the frame with rugs.
b is a top view of the rear right corner of the frame with rugs.
a is a cutaway view of the rear upper left corner of the frame with the rug being lifted into a raised position.
b is a cutaway view of the rear upper left corner of the frame with the rug being lifted into raised position.
c is a cutaway view of the rear upper left corner of the frame with the rug being lifted into raised position.
d is a cutaway view of the rear upper left corner of the frame with rugs in raised position.
e is a cutaway view of the rear upper left corner of the frame with rugs in raised position with the lifting process starting over.
a is a side view of the catch member.
b is a rear view of the catch member.
c is a side view of the catch member.
d is a top view of the catch member.
e is a front view of the catch member.
a is a top view of the frictional member.
b is a front view of the frictional member.
c is a rear view of the frictional member.
d is a side view of the frictional member.
e is a side view of the frictional member.
f is a side view of the frictional member with cam engaged.
Turning now descriptively to the drawings, in which similar reference characters denote similar elements throughout the several views,
The structure and configuration of the frame 20 is preferably comprised of a heavy construction and includes the vertical members 22 for support and strength. As can be seen from
At each corner of the frame 20 is preferably a set of four vertical members 22.
The vertical members 22 at each corner are preferably hollow rectangular tubes as shown in
a and 9b shows the vertical members 22 are separated by a distance of at least a greater width of the elongated member 50 summed with the width of the catch members 60 attached to either side of the elongated member 50.
The vertical members 22 also serve to provide a mounting structure for other key components of the rug 12 display system. Among others, some components mounted on the vertical members 22 are the first motor 30, second motor 32, first gearbox 31, second gearbox 33, belts 52, and transfer members as seen in
The structure and configuration of the support members 40 is preferably comprised of strong tarp-like canvas or material of similar strength. A suitably strong material is necessary to carry the weight of the rug 12 as it is displayed.
The support member 40 is preferably tautly held in a place to prevent sagging by the fastener 44 on the connecting member 42 as seen in
To keep the support member 40 taut the connecting member 42 is attached to the base member 90 of the frictional member 70. The frictional members 70 are not allowed horizontal movement, only vertical by the rollers 76 contacting the inner surface of the vertical member 22.
To display rugs 12 using this system, a plurality of support members 40 are installed on the rug 12 display system. To display a rug 12, a rug 12 is laid out on top support member 40, as seen in
The support members 40 preferably have a length and width greater than the length and width, respectively, of the rugs 12 to be displayed. This will allow the rugs 12 to be laid out flat on the support member 40 eliminating the need to further roll or adjust the rugs 12 to store them on the rug 12 display system.
The rug 12 display system has been designed to lift one support member 40 at a time. The support member 40 is raised from the lower position to the upper position on rug 12 display system as seen in
i. Motors and Chains
It is preferred two motors are used on the rug 12 display system. The first motor 30 is used to power the lifting process of the support members 40 displaying the rugs 12. The second motor 32 is used to power the lowering support members 40 displaying the rugs 12. Electric motors are preferred since they are relatively small in comparison to the size of the rug 12 display system, run quietly, and electricity sources are easily accessible.
The first motor 30 is used raise the support members 40. The first motor 30 is preferably mounted to the upper portion of the set of vertical members 22 in the front right corner of the frame 20 as shown in
The lifting axle 54 from the first gearbox 31 passes through each respective loop created by the two elongated members 50 and the first transfer member 56 as shown in
One elongated member 50 is located around the lifting axle 54 in the spacing between the right and left side vertical members 22 of the front right corner, as seen in
The elongated member 50 needs to be kept taut to effectively transfer the rotary motion of the lifting axle 54. This is accomplished by engaging the elongated member 50 to preferably a sprocket on an axle located very near the bottom of the said vertical members 22 in the aforementioned space between the left and right side vertical members 22. The elongated member 50 will be attached in a substantially similar manner in the other three corners of the frame 20.
As stated previously, the lifting axle 54 runs the from the first gear box in the upper portion of the front right corner vertical members 22 to the upper portion of the rear right corner vertical members 22. It is obvious the rotary motion is consistent all along the length of this lifting axle 54 as it is in any solid axle. Since the rotary motion doesn't vary across the axle, the transfer of motion to the elongated member 50 doesn't vary on either the right front or right rear corners and therefore the elongated members 50 will have substantially similar motion.
To keep the motion of the elongated members 50 on the left side of the frame 20 synchronized with the motion of the elongated members 50 on the right side of the frame 20, a first transfer member 56 is engaged to the lifting axle 54 on the right side of the frame 20 and also engaged to a lifting axle 54 on the left side of the frame 20 as shown in
Each of the four elongated members 50 is attached to the support members 40 via the catch member 60 and frictional members 70. The preferred attachment of the catch member 60, frictional member 70, elongated member 50, and the support member 40 will be discussed in greater detail later. The lifting axles 54 are turned in a manner to have the side of the elongated members 50 with the upright oriented catch member 60 rise. Hence, when the catch members 60 move upward and engage the frictional member 70, the frictional member 70 also moves upward with the attached support members 40.
Because the elongated members 50 have substantially similar motion, the support members 40 can be lifted in a horizontally level, uniform fashion thus reducing the possibility of the support members 40 being stretched or torn. The possibility is also reduced of having the rugs 12 slide around causing the need for additional physical labor or repair.
ii. Catch Members and Frictional Members
The catch members 60 and frictional members 70 have been mentioned serving as the connection from the support member 40 to the elongated member 50. The structure and configuration of the catch member 60 is preferably comprised of heavy construction and includes absorption pads 64 for dampening impact and engaging members 62 for cradling the locking pin 78 from the frictional member 70.
The front side of the catch member 60 is where the attachment of the elongated member 50 is located.
The rear side of the catch member 60 holds the engaging members 62. The structure and configuration of the engaging member is preferably comprised of two identical cylindrical solids. The two engaging members 62 are located on the rear side of the catch member 60 at a substantially similar vertical placement with a substantially similar horizontal distance from the longitudinal center. The horizontal distance from the longitudinal center is no greater than the radius of the engaging member plus the radius of the locking pin 78. The preferred shape of the rear side of the catch member 60, as shown in
The locking pin 78 provides a downward force on the engaging members 62 due to the weight of all that is attached to the frictional members 70 such as the support members 40 and rug 12. As shown in
The torque on the elongated member 50 can cause twisting and extra wearing of the elongated member 50. To prevent, or at least minimize, the effects of this torque on the elongated member 50 an elongated member guide 51 has been added.
d shows the profile of the elongated member 50. The center portion of the elongated member 50 is not as thick as the two outer sides. This shape allows the elongated member guide 51 rail to run along the center portion of the elongated member 50 in between the two outer sides. The two outer sides are restrained by the elongated member guide 51 rail and will prevent significant sideways movement or twisting. In the case that the catch member 60 is twisted or pushed into the elongated member 50 the absorption pads 64 will dampen this movement.
The absorption pads 64 are located on the front side of the catch member 60, as seen in
There are two catch members 60 per elongated member 50. The catch members 60 are spaced so one catch member 60 is placed on the elongated member 50 and then the other catch member 60 is placed away half the length of the elongated member 50. The catch members 60 are attached on alternate sides of the elongated member 50 so one catch member 60 is attached on the right side of the elongated member 50, and the catch member 60 on the same elongated member 50 is attached to the left side. This placement of catch members 60 is understood to be coordinated with all four elongated members 50.
The lifting of an individual support member 40 has, as already stated, many components that work simultaneously. To start this process, the first motor 30 was engaged and this powered the first gearbox 31, and the first gearbox 31 turned the lifting axle 54. Then, the lifting axle 54 turned the elongated members 50. Being attached to the elongated members 50, the catch members 60 obviously follow its same path as the elongated member 50.
To transfer the vertical motion of the catch member 60 to lift the support member 40, the catch member 60 and frictional member 70 are engaged to work together in lifting the support members 40.
The catch member 60 on the right hand side of the elongated member 50 has lifted the support members 40 attached to the frictional members 70 on the right side of the elongated member 50 into place, and hence the catch member 60 on the left side of the elongated member 50 has lifted the support members 40 with frictional members 70 on the left side of the elongated member 50 into place.
The structure and configuration of the frictional members 70 is preferably comprised of heavy construction and includes a base member 90, extended member 92, cross member 94, and locking pin 78. The frictional member 70 also includes the base member 90, lever member 96, cam 98, collar member 80, end portion 82, first spring 84, second spring 86, arm member 72, bias member 74, rollers 76, and stopper end 79.
The base member 90 of the frictional member 70 has extending latitudinally the extended member 92 which is comprised of sidewalls of substantially similar height as the base member 90 and with a preferably rectangular base as seen in
The rear end of the base member 90 has been established as the preferred attachment point to the connecting members 42. The front end of the base member 90 has the rear end of the arm member 72 attached with a pin to allow for arm member 72 rotation. The front end of the arm member 72 extends outward beyond the front end of the base member 90 sloping downward. The preferable shape of the rear end of the arm member 72 is an upside down u-shaped which flattens out toward the front end of the arm member 72 to a horizontal edge.
The bias member 74 is placed between the bottom side of the arm member 72 and top side of the base member 90 to exert a pushing force on the arm member 72 to ensure the arm member 72 is contacting the belt 52. The downward orientation of the arm member 72 with the horizontal edge allows for a maximum amount of friction between the arm member 72 and the belt 52 to hold the frictional member 70 and attached support members 40 from being pulled downward. The weight of the support member 40 structure, rugs 12, connecting members 42, and fasteners 44 pull downward on the frictional members 70 to further drive the front end of the arm members 72 into the surface of the belts 52.
When the frictional members 70 are being lifted, a minimum amount of friction is desired. The arm member 72 is allowed to rotate about said pin to greatly reduce the friction between the arm member 72 and the belt 52 as the frictional member 70 is being pulled upward along the stationary belt 52. The downward orientation prevents the horizontal edge from engaging the arm member 72 into the belt 52.
The collar member 80 is a cylindrical hollow shaft. The collar is supported by passing through the cross member 94 and the sidewall of the extended member 92 that runs parallel to the base member 90 as shown in
The second spring 86 is wrapped around the exterior wall of the collar member 80 as seen in
The lever member 96 is attached to the sidewall of the extended member 92 that runs parallel to the base member 90 preferably by a pin that allows for rotation as shown in
The process of lifting a support member 40 is due to the upward lifting action of the catch member 60 on the elongated member 50 engaging the locking pin 78 and lifting the frictional member 70 and the attached support member 40 in a substantially similar manner in all four corners of the frame 20.
The lever member 96 of the frictional member 70 that is being raised is now contacting the bottom of the extended member 92 of the last frictional member 70 to be raised in place on the left side of the elongated member 50.
b shows the lever member 96 is rotating downward, clockwise. As the cam 98 on the lever member 96 is rotated clockwise the contact point of the cam 98 to the end portion 82 has an increasing radius so it pushes outward, to the left, on the end portion 82. The end portion 82 is directly attached to the collar so axial movement of the collar member 80 is resulted from simultaneous directional movement of the end portion 82.
The outward movement of the end portion 82, to the left, causes the first spring 84 to compress and push against the stopper end 79. The stopper end 79 is attached to the locking pin 78 so axial movement of the pin results from simultaneous directional movement of the stopper end 79.
The weight of the rug 12 and support member 40 attached to the base member 90 of the frictional member 70 pulls downward while the engaging members 62 of the catch member 60 are pulling upward. This upward force on the right end of the locking pin 78 and the downward force on the base member 90 cause the locking pin 78 to bind frictionally with the base member 90 and with the engaging members 62. The said frictional forces are at least greater than the force of the first spring 84 pushing to the left on the stopper end 79 and hence the locking pin 78.
As the lifting process continues, as shown in
Shown in
In
With the locking pin 78 released from the engaging members 62, the said catch member 60 is no longer prevented from moving upward. When the first motor 30 is engaged the elongated members 50 holding the catch members 60 can freely move upward, as seen in
The uppermost support member 40 in lowered position holds the position of displaying the next rug 12. To display the rugs 12 on the rest of the support members 40, the support members 40 are lifted in the same manner as the lifting process described above. Once all the desired rugs 12 have been displayed and the support members 40 have been moved to the upper position, the support members 40 are lowered back to the lowered position.
The second motor 32 is used to lower the support members 40 as shown in
The lowering axle 55 from the second gearbox 33 passes through each respective loop created by the two belts 52 and the second transfer member 57 as shown in
The structure and configuration of the belt 52 is preferably comprised of a chain and a rubber-like material attached to the outer loop surface as shown in
Before starting the process of returning the support members 40 from the raised position to the lowered position, as seen in
The rollers 76 on each frictional member 70 aid the lowering process by rolling along the inside edge of the vertical member 22 to help produce a smooth lowering motion as shown in
The support members 40 in lowered position as shown in
The support members 40 in lowered position as shown in
The aforementioned setup for stopping the frictional members 70 in lowered position allows the belt 52 to continue running downward after the frictional members 70 have come to stop in the lowered position. Since the belt 52 can run inconsequentially after the support members 40 are in lowered position, the need to carefully monitor and disengage the second motor 32 with precise timing is eliminated.
In use, to load the rugs 12 onto the rug 12 display system the support members 40 are brought to the lowered position as shown in
The rugs 12 may now be loaded onto the support members 40 of the rug 12 display system. The rug 12 to be loaded is aligned in between the vertical members 22 and loaded onto the uppermost support member 40 of the rug 12 display system as shown in
To raise the uppermost support member 40 into a raised position, the first motor 30 is turned on to lift the elongated members 50 and the attached catch members 60. As the catch member 60 moves upward, it engages the locking pin 78 to lift the frictional member 70 and support member 40 to the raised position which is near the top of the frame 20 as shown in
To display the rugs 12, the support members 40 in the raised position need to descend back to the original lowered position. The second motor 32 is turned on to lower the support members 40 as in the process described above, as shown in
To unload the desired rug 12 from the rug 12 display system, the support member 40 holding the desired rug 12 is raised to an easily accessible height. The rug 12 may then be removed from the rug 12 display system. If desired, another rug 12 may be placed on the newly emptied support member 40 of the rug 12 display system.
What has been described and illustrated herein is a preferred embodiment of the invention along with some of its variations. The terms, descriptions and figures used herein are set forth by way of illustration only and are not meant as limitations. Those skilled in the art will recognize that many variations are possible within the spirit and scope of the invention, which is intended to be defined by the following claims (and their equivalents) in which all terms are meant in their broadest reasonable sense unless otherwise indicated. Any headings utilized within the description are for convenience only and have no legal or limiting effect.