Safe Compactible Play Structure
A child's play ramp, of flexible sheet material, leading up to a play room. Ramp is for climbing and sliding. The playroom is open to the ramp, but part of that opening is covered by a screen. Barriers prevent dangerous falls in directions other than down the ramp. A safety mat is included at ramp bottom. The product is compactible into the form of a box. There is: a specific foothold construction; a specific way of lining side fall barriers; and a specific method of attaching a safety mat to the low end of the ramp.
This application claims the benefit of U.S. Provisional Application No. 60/490,919 filed on Jul. 30, 2003.
BACKGROUND OF INVENTIONThis invention is in the field of amusement devices, specifically: body slides; play area climbing arrangements; foldable toy habitations; devices including container for storing their parts; and play structures including safety enclosures and/or safety mats.
Slides for children are well known.
Typically the slide, including its climbing feature, is constructed of rigid material. Rigid slides may be less fun than a flexible sheet slide. Using rigid material for a slide also limits the ways in which it can be compacted.
Slide toys typically do not come with integrated safety mats for the bottom end of the slide and bottom end of the climbing feature, and parents may neglect to add safety surfaces when purchasing slides.
Slides typically do not come with fall barriers, apart from low guides that can easily be crossed. This increases the area of the support surface that may receive a falling child, and therefore increases the area needing padding.
Slides toys typically locate the low end of their climbing features far from the low end of their slides. This reduces the lesser danger of child-to-child collision, while requiring a greater amount of the support surface be protected against the greater danger of child to support surface collision. The Consumer Product Safety Commission's “Special Study: Injuries and Deaths Associated with Children's Playground Equipment”, April 2001, has relevant safety statistics.
Children often neglect a slide's climbing feature, and instead climb up and down the sliding surface. Slides typically do not offer a fun way to descend their climbing feature, to complement to the fun children have climbing the sliding surface.
The low end of a slide is typically some inches above the support surface, causing the whole structure to be higher, and, in that way, more dangerous and more expensive. On the other hand, a slide ending at the support surface level may encourage children to use the slide dangerously, as a runway.
Modern slides are often constructed of hollow rotation-molded plastic members, taking advantage of the economics of plastic. These items are bulky. Plastic is, for some people, less pleasing than cloth or wood. Manufacturing start-up costs are high, as molds must be produced first.
Fall barriers should be rigid to protect children from impacting rigid objects placed near, or leaning on, the barriers. Connecting a flexible ramp to rigid fall barriers may be difficult.
Many instances of prior art address one, or a few, of the problems suggested here. I am not aware of any instance of prior art which addresses all these problems.
BRIEF SUMMARY OF THE INVENTION OBJECTS OF THE INVENTIONThe object of the invention is to provide: a flexible, therefore more fun, play ramp; a climbing feature which can also serve as a bumpy slide; a low friction slide adjacent the climbing feature; and a playroom with a hiding area. And the object is to provide a play structure which largely contains children playing on it, and to provide a safety mat below the structures open side. And the object is to provide a play structure which can be compacted. And the object is to provide a play structure that can be built with readily available materials, using ordinary tools, and requiring minimal capital investment.
BRIEF DESCRIPTION OF THE INVENTIONThe invention provides: a ramp with a climbing portion 1b and a sliding portion 1a; a play room 2 at the top end of, and open to, the ramp; a screen 8 partly covering the open side of the play room; vertical fall barriers 4a and 4b along the inclined edges 11 of the ramp; fall barrier liners 6a, attached to the inclined edges of the ramp and extending up the fall barriers; a safety mat 5 at the bottom of the ramp; and a brake 7a and 7b over and in front of the ramp, to discourage children from running down the ramp at full speed, and to discourage children from climbing up and out of the structure. The playroom and the upper end the of the ramp are supported by a base.
The ramp, screen, liners and brake are of flexible sheet material.
For storage and transport: the ramp, screen, fall barrier liners, brake, and safety mat all stow within the playroom; upper fall barrier panels close over the front of the playroom; the playroom, with playroom contents, nests within the base; and lower fall barrier panels close over the front of the base.
BRIEF DESCRIPTIONS OF DRAWINGS
Caution
At the time of application for patent, safety testing is not complete. Use caution.
Configurations
The play structure has two main configurations: deployed (
This description refers to the deployed configuration, except where explicitly stated otherwise.
Orientation
Moderate Detail
Children, when using this product, play directly: on a ramp 1a-1b; in a play room 2; and on a safety mat 5.
The ramp has a climbing portion 1b and a sliding (body slide) portion 1a.
A low ramp beam 9 holds the low end of the ramp in place.
A base 3 supports the upper end of the ramp 1e on the base's top forward edge 3b. The top forward edge of the base (excepting its extreme ends) is rounded down and padded, providing a smooth and safe transition from rigid playroom floor 3a to flexible ramp 1a-1b.
The playroom 2 consists of a rear wall 2a extending up from the top rear edge of the base, and two side walls 2b extending up from near the left and right top edges of the base. The base 3 supports the playroom. The top surface 3a of the base is the floor of the playroom. The forward side of the playroom is open, on the left and the right, to the ramp. Children may hide behind the screen 8 covering, between left and right, the central portion of the playroom front. And the screen reduces the likelihood a climbing child will collide with a sliding child.
The extreme side ends 3c of the forward edge 3b of the base are not rounded down, nor padded, as they support and grip the forward ends of the playroom side walls 2b.
The front surface 31 of the base is closed, preventing children from crawling from behind the structure to under the ramp.
A ceiling unit 10 covers the top of the playroom, preventing children from climbing up over the playroom walls.
Upper fall barrier panels 4a extend the playroom walls forward, over the left and right edges of the ramp.
Lower fall barrier panels 4b extend the sides of the base forward, beside the left and right edges of the ramp.
Any opening (between an inclined edge 11 of the ramp and that edge's adjacent low fall barrier panel 4b), and any gap (between a low fall barrier panel and its adjacent upper fall barrier panel 4a) are covered by the adjacent, left or right, fall barrier liner 6. Each fall barrier liner: is attached directly to its adjacent inclined edge of the ramp; extends up; is draped over the upper and forward edges of its adjacent upper fall barrier panel; and is draped over the forward edge of its adjacent lower fall barrier panel.
The brake upper portion 7a fills the area between the upper edges 4c of the left upper fall barrier panel and the upper edges 4c of the right fall barrier panel. The brake lower portion 7b fills the area between the forward edges 4d of the left and right upper fall barrier panels. The brake: discourages children from running full speed down the ramp; prevents them from running, from outside the structure, into the ramp area; and prevents them from climbing, from inside, up over the fall barriers.
The screen 8 covers the area from the middle of the high end of the ramp, up to the middle of the upper rear edge of the brake, closing a central (between left and right) portion of the front of the playroom.
A safety mat 5 covers the floor in front of the low end of the ramp, covering all areas of the floor likely to receive the impact of a child descending from the ramp or playroom. The rear end of the safety mat also covers the forward end of the ramp, insulating children from the rigidity of the low ramp beam.
Suggested Dimensions
A good height for the top surface of the base is 715 mm. A good height for the playroom ceiling, measuring from the top surface of the base, is 780 mm. A good width for the ramp is 850 mm, 425 mm for the climbing side and 425 mm for the sliding side. A good playroom depth (front to back) is 460 mm. 35 degrees is a good angle for the ramp as it rises up from the floor underneath it. A good length for the safety mat is 900 mm. A good width for the safety mat is 1360 mm. A good distance, measured up or down the ramp, between one foothold and the next foothold, is 250 mm. These measures assume the product will be used most frequently by well nourished children, aged from 18 months to 60 months old.
Greater Detail
The ramp 1a-1b is made from a sheet of strong light flexible material, such as woven, synthetic cloth. Polyester or acrylic cloth can be light, strong, resistant to chemical decay, and not too stretchy. Some fabrics originally intended as awning cloth can be used.
The ramp has a hem 1f at its low end, the left and right ends of the hem are open. The low ramp beam 9 is inserted into the hem, securing the low end of the ramp to the low ramp beam.
The sheet material of the ramp extends beyond the high end of the ramp, over the top forward edge 3b of the base, and continues rearward over the top surface 3a of the base (playroom floor), to attach to the low end of the rear playroom wall 2a.
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The sliding portion 1a of the ramp is covered with nylon cloth of a satin weave. Nylon is a relatively low friction substance. The satin weave is oriented for minimum friction along the length of the ramp.
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Each brake upper left and upper right edge is sewn to its adjacent liner, at the points 6d where the liner folds over the upper edge of its adjacent upper fall barrier panel. Each lower left and lower right edge of the brake is attached to its adjacent liner, at the points 6ewhere the liner folds over the forward edge of its adjacent upper fall barrier panel.
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The upper surfaces of the low ramp beam 9 are covered with padding, padding not shown.
The safety mat 5, and also the padding on the upper forward edge of the base and padding attached to the low ramp beam, can be made of closed cell Ethyl Vinyl Acetate (EVA) foam. EVA foam is familiar as the material from which puzzle mats are constructed. In all places where EVA foam is glued, glue similar to UGL brand rubber cement can be used.
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The rear segment 5a and forward segment 5b are attached to each other by a strip of fabric (not shown) glued to the bottom surfaces of both segments. Each side segment 5c is attached, to the respective side of the forward and rear segments, by jigsaw-puzzle-like interlocking edges 5e.
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Playroom walls and fall barrier panels can be constructed of wood lengths, and sheets of rigid plastic. Wood lengths are formed into frames, using joining techniques familiar to furniture construction. Poplar wood works well, being an inexpensive hardwood. Plastic sheets cover wall and barrier areas. 1.5 mm thick HDPE (high density polyethylene) sheets work well, and can be purchased from plastic distributors. HDPE sheets can be trimmed with a sharp knife. HDPE sheets can be attached to the wood by a large number of small screws.
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The lower parts of the base can be constructed in any number of ways consistent with requirements that: the base be sufficiently strong and rigid; the base be hollow sufficiently to hold the playroom when product is compacted; the rear of the base be sufficiently open so as to slide the playroom in while compacting; and the front of the base be covered so as to prevent children from crawling under the ramp from the rear.
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A vertical pin, not shown, through the low edge of each upper fall barrier panel and the upper edge of its corresponding low fall barrier panel, fixes the upper fall barrier panel in line with its corresponding lower panel.
The low rear portion 4i of each low fall barrier panel is constructed of netting rather than rigid plastic. These low rear sections prevent children from crawling under the ramp from the floor area to the left or right of the product.
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Steps to Compact
To compact the product, follow the below steps in order (reverse steps to deploy):
1) pull the left and right safety mat segments 5c up, separating them from the two central segments. Place the left and right safety mat segments on the ramp. Fold the rear 5a and forward 5b safety mat segments together at their joint. Move the forward and rear segments, along with the low ramp flap 1c, up and back, pivoting the flap at the seam attaching flap to ramp. Place the forward and rear mat segments on the ramp.
2) remove the pins 4g fixing the low ramp beam 9 ends to the low forward corners of the low fall barrier panels. Bend the low forward corners of the low fall barrier panels out a small ways, freeing the low ramp beam ends from the notches in those corners.
3) Lift the low ramp beam and low end of the ramp up a short way, loosening the liners 6. Pull each liner inwards, unwrapping them from the fall barrier panel edges. Gently put down the low ramp beam.
4) Remove the pins 10f holding the ceiling unit struts 10c to the rear corners of the ceiling. Fold each strut down onto the upper edges of its respective left or right playroom wall. Fold the ceiling unit 10 down and back. After folding down the ceiling unit, the screen 8 will be loose, allowing components to be stowed in the playroom, in front of the ceiling and screen. After folding down the ceiling unit, the tops ends of the playroom side wall front end columns are exposed.
5) Lift the low ramp beam, along with the low end of the ramp. Place each end of the low ramp beam on the top of the respective playroom side wall front column top end. Any of a number of means can be provided to secure the low ramp beam ends atop the columns, though none is described here. After placing the low ramp beam atop the columns, the ramp is largely inverted, and the underside of the ramp is exposed to the front.
6) Gather part of the ramp length so the buttonholed tabs in on the underside of the ramp meet the buttons 1g on the underside of the ramp meet, thereby tightening the remaining length between what had been the top end of the ramp, and the low (now not so low) ramp beam. This tightening process will assure the safety mat, liners, and brake are largely within the playroom. And this tightening will also prevent the portion of the ramp material that covers the playroom floor from sagging when the playroom is later removed from the base. Button the buttons.
7) Remove the pins, not shown, securing the bottom edges of the upper fall barrier panels 4a to the upper edges of the low fall barrier panels 4b. Close the upper fall barrier panels. This closes the playroom 2. And this frees the projections 4e, and consequently also the playroom, from the stops 3k an the top surface of the base which had prevented the playroom from sliding back over the base.
8) Slide the playroom back over the base a short way, freeing the features 2g-2h projecting downward from the playroom side walls. Lift the playroom and its contents, and place the playroom and its contents on the floor. Rotate the playroom 180 degrees so the upper fall barrier panels are now facing rear.
9) Slide the playroom into the rear of the base.
10) Close the low fall barrier panels over the front of the base.
Claims
1. A play structure for children, comprising a rigid frame and a ramp, where:
- the ramp is constructed of flexible sheet material; and
- the ramp is stretched tight on the rigid frame; and
- a climbing portion of the ramp has footholds, and
- a sliding portion of the ramp is smooth.
2. The play structure of claim 1 where at least one of the footholds is constructed with two strips of flexible sheet material and with bulky material, where:
- one long edge of the first strip is attached to the second strip at a line along the length of the second strip; and
- the two long edges of the second strip plus the remaining long edge of the first strip are attached to the ramp, roughly horizontally, all on the same line or on nearby parallel lines, forming two roughly horizontal tunnels; and
- the two tunnels are filled with the bulky material; and
- the lower tunnel (with the lower tunnel filling) prevents the upper tunnel (with the upper tunnel filling) from flopping down under the foot of a climbing child.
3. The play structure of claim 1 where:
- the low end of the ramp is held in place by a horizontal beam for the width of the ramp;
- a safety mat covers support surface area where children sliding or falling off the ramp will land;
- a portion of the safety mat also covers the beam that holds the low end of the ramp in place; and
- a long edge of a flap, of flexible sheet material, is attached horizontally across the ramp, near the low end of the ramp and above the beam holding the low end of the ramp in place; and
- the flap extends forward, over the beam and over the safety mat portion covering the beam, to convey sliding children from the ramp onto the mat, children being insulated from the rigidity of the beam by the mat; and
- the safety mat is detachably connected to the flap, or to the low end of the ramp, or to the low ramp beam.
4. The play structure of claim 1 where:
- the rigid frame also forms a horizontal play platform, level with the top of the ramp; and
- the flexible sheet material of the ramp extends also over the front of the play platform, to some line of attachment on or beyond the platform; and
- the edge of the platform, which is adjacent the ramp, is padded under the extended ramp material; and
- said padding forms a rounded shape, rounding down from the plane of the platform to the plane of the ramp.
5. The play structure of claim 4 where:
- rigid frame material, of the platform surface portion adjacent the top of the ramp, is angled down at a shallow angle as it runs forward; and
- the padding covers that angled down material; and
- the padding on the upper region of the angled down area has a triangular cross section, forming there a horizontal surface flush with the horizontal surface of the further-from-ramp portion of the platform; and
- the top surface of padding, where it covers the lower region of the angled down area, is rounded down to an approximate tangent to the ramp.
6. The play structure of claim 1 where the sliding portion of the ramp is constructed of, or covered with, cloth of a satin weave, the satin weave oriented to reduce friction with children sliding down the ramp.
7. The play structure of claim 1 where the rigid frame also forms a playroom, the playroom floor being a horizontal platform level with the top of the ramp, the playroom being largely open to the top of the ramp for most of the width of the ramp, the playroom being closed elsewhere.
8. The play structure of claim 7 where:
- a vertical screen of flexible sheet material closes the central portion of the open-to-ramp area on the ramp side of the playroom, and;
- the bottom edge of the screen is attached near the center of the top of the ramp, on a first horizontal line parallel with the upper edge of the ramp, and;
- the top edge of the screen is attached to, or near to, the front edge of the playroom ceiling, an a second horizontal line, second horizontal line being roughly parallel to the first horizontal line.
9. The play structure of claim 7 where the frame is constructed of wood lengths, with rigid plastic sheet material covering areas between the lengths to form playroom walls and/or fall barrier panel surfaces, rigid plastic sheet material being attached to the wood lengths.
10. The play structure of claim 7 where, for storage or transport, the rigid parts of the structure can be put in a compacted configuration containing the ramp.
11. The play structure of claim 1 where:
- the frame also provides rigid vertical fall barriers panels along the inclined edges of the ramp; and
- flexible sheet material forms a lining on the inner surface of each fall barrier panel; and
- each said lining extends upwards, from where it is attached to its ramp edge, to the upper and forward edges of adjacent fall barriers; and
- said lining folds over the upper and forward edges of the fall barrier panels.
12. The play structure of claim 11 where:
- a first edge of a sheet of netting is attached to the lining of one fall barrier, near where the lining folds over fall barrier panel edges; and
- the netting spans area roughly above the low ramp beam; and
- a second edge of the netting (opposite the first edge) is attached (in a similar way as the first edge is attached) to the lining of that second side's adjacent fall barrier.
13. The play structure of claim 1 where:
- the frame also provides rigid vertical fall barriers panels along the inclined edges of the ramp; and
- flexible sheet material forms a lining on the inner surface of each fall barrier; and
- each lining is attached to its adjacent inclined edge of the ramp; and
- each lining extends upwards to upper and forward edges of the fall barriers; and
- a sheet of netting is attached, at points a short way in from a first edge of the netting, to the lining of one fall barrier, near the upper and/or forward fall barrier panel edges; and
- the netting spans area roughly above the low ramp beam; and
- the netting sheet is attached, at points a short way in from a second edge of the netting opposite the first edge (in a similar way as the first edge is attached), to the lining of the fall barrier adjacent the second netting edge; and
- the netting fabric extends over the upper and/or forward edges of both fall barrier panels, folding down and continuing some ways down, and/or back, the outside of the fall barrier panels.
14. A play structure comprising a box-like base, a box-like playroom, and a ramp, where:
- a portion of the ramp is smooth for sliding; and
- a portion of the ramp has footholds for climbing; and
- the top end of the ramp is supported by a top edge of the base; and
- the playroom sits atop the base and is open to the ramp; and
- the ramp can be stored within the playroom; and
- the playroom can be stored within the base.
15. The play structure of claim 14 where the ramp is constructed of flexible sheet material.
16. The play structure of claim 14 and also including vertical fall barrier panels along both inclined edges of the ramp where:
- some or all of the fall barrier panels are connected to the playroom walls by hinge-like attachments, and fall barrier panels swing on their hinge-like attachments to close over the open face of the playroom.
17. The play structure of claim 16 where the ramp is constructed of flexible sheet material.
Type: Application
Filed: Jul 30, 2004
Publication Date: Mar 17, 2005
Inventor: Nathan Finstein (Philadelphia, PA)
Application Number: 10/710,735