초록

A juvenile seat includes a seat base mounted for up-and-down movement on an underlying foundation. A lock is provided to set the elevation of the seat base relative to the foundation.

대표청구항 ▼

The invention claimed is: 1. A juvenile seat comprising a foundation including a left pillar and a right pillar, the left and right pillars being adapted to set on an underlying surface, a seat base mounted for up-and-down movement on the left and right pillars of the foundation, the seat base bein

The invention claimed is: 1. A juvenile seat comprising a foundation including a left pillar and a right pillar, the left and right pillars being adapted to set on an underlying surface, a seat base mounted for up-and-down movement on the left and right pillars of the foundation, the seat base being formed to include a downwardly opening left pillar-receiving chamber, a downwardly opening right pillar-receiving chamber, and an upwardly facing seat bottom lying between the left and right pillar-receiving chambers, the left pillar of the foundation being arranged to extend upwardly into the left pillar-receiving chamber of the seat base, the right pillar of the foundation being arranged to extend upwardly into the right pillar-receiving chamber of the seat base, a base elevation adjustor providing lock means for selectively locking the seat base to the left pillar and for selectively locking the seat base to the right pillar to establish a desired elevation of the seat bottom relative to the underlying surface; wherein the seat base includes an outer rim having, in sequence, a front side wall, a left side wall, a rear wall, and a right side wall, a left inner wall coupled to the front and rear walls and arranged to cooperate with the left side wall to define the left pillar-receiving channel therebetween, and a right inner wall coupled to the front and rear walls and arranged to cooperate with the right side wall to define the right pillar-receiving channel therebetween, wherein the right side wall includes spaced-apart forward and rearward guide rails, the forward guide rail is arranged to extend into the right pillar-receiving chamber and into a forward channel formed in the right pillar, the rearward guide rail is arranged to extend into the right pillar-receiving chamber and into a rearward channel formed in the right pillar and located in spaced-apart relation to the rearward channel, the right pillar is formed to include lower and upper anchor sockets situated in the right pillar-receiving chamber and arranged to open in a direction facing toward the left pillar and the lock means includes a right-side lock arranged to extend through the right pillar-receiving chamber into the lower anchor socket to link the seat base to the right pillar to support the seat bottom at a first elevation above the underlying surface and alternately into the upper anchor socket to link the seat base to the right pillar to support the seat bottom at a higher second elevation above the underlying surface, and the lower and upper anchor sockets are located in a space provided between the forward and rearward channels formed in the right pillar, and wherein the right pillar is formed to include a travel channel arranged to intersect the lower and upper anchor sockets and the right-side lock includes a right base retainer mounted for movement relative to the seat bottom to extend into a selected one of the lower and upper anchor sockets and a right retainer-actuator button located outside the right pillar-receiving chamber and arranged to extend through the travel channel to mate with the right base retainer to provide means for moving the right base retainer relative to the right pillar to engage and disengage the lower and upper anchor sockets. 2. The juvenile seat of claim 1, wherein the lock means includes a left-side lock coupled to the left pillar and to the seat base and a right-side lock coupled to the right pillar and to the seat base. 3. The juvenile seat of claim 2, wherein the right pillar includes a plate frame and the right-side lock includes a right elevation plate coupled to the plate frame of the right pillar, the right elevation plate is formed to include a lower anchor socket associated with a first elevation of the seat bottom above the underlying surface and an upper anchor socket associated with a higher second elevation of the seat bottom, the right-side lock also includes a right base retainer mounted for movement relative to the seat bottom toward the right elevation plate to extend into one of the lower and upper anchor sockets to retain the seat base in a predetermined elevation position relative to the foundation and away from the right elevation plate to exit the lower and upper anchor sockets to free the seat base for up-and-down movement relative to the right pillar of the foundation. 4. The juvenile seat of claim 3, wherein the right pillar further includes a front footing adapted to set on the underlying surface and a spaced-apart rear footing adapted to set on the underlying surface, the plate frame is arranged to lie between and interconnect the front and rear footings, and the right elevation plate is located in a space provided between the front and rear footings. 5. The juvenile seat of claim 3, wherein the seat base further includes a fixed spring anchor wall arranged to lie in spaced-apart relation to the right elevation plate, the right base retainer includes a movable retainer latch and spring means acting on the fixed spring anchor wall for yieldably urging the movable retainer latch normally toward the right elevation plate to extend into one of the lower and upper anchor sockets upon movement of the seat base relative to the right pillar to align the movable retainer latch in confronting relation to said one of the lower and upper anchor sockets. 6. The juvenile seat of claim 3, wherein the right elevation plate is also formed to include a travel channel arranged to intersect the lower and upper anchor sockets and the right-side lock further includes a right retainer-actuator button located outside of the right pillar-receiving chamber and arranged to extend through the travel channel to mate with the right base retainer to provide means for moving the right base retainer relative to the right elevation plate to engage and disengage the anchor sockets formed in the right elevation plate. 7. The juvenile seat of claim 2, wherein the left-side and right-side locks are separated from one another and configured to be operated independently from another. 8. The juvenile seat of claim 2, wherein the left-side lock includes a left elevation plate formed to include at least two anchor sockets and a left base retainer mounted for movement relative to the seat base toward and away from the at least two anchor sockets formed in the left elevation plate and configured to mate with one of the anchor sockets formed in the left elevation plate at a time to establish the desired elevation of the seat bottom relative to the underlying surface. 9. The juvenile seat of claim 8, wherein the right-side lock includes a right elevation plate formed to include at least two anchor slots and arranged to lie in spaced-apart confronting relation to the left elevation plate and a right base retainer mounted for movement relative to the seat base toward and away from the at least two anchor sockets formed in the right elevation plate at a time to establish the desired elevation of the seat bottom relative to the underlying surface. 10. The juvenile seat of claim 9, wherein the left base retainer is arranged to move relative to the seat base in a first direction to mate with one of the anchor sockets formed in the left elevation plate and the right base retainer is arranged to move relative to the seat base in an opposite second direction to mate with one of the anchor sockets formed in the right elevation plate. 11. The juvenile seat of claim 1, wherein the right pillar is formed to include lower and upper anchor sockets situated in the right pillar-receiving chamber and arranged to open in a direction facing toward the left pillar and the lock means includes a right-side lock arranged to extend through the right pillar-receiving chamber into the lower anchor socket to link the seat base to the right pillar to support the seat bottom at a first elevation above the underlying surface and alternately into the upper anchor socket to link the seat base to the right pillar to support the seat bottom at a higher second elevation above the underlying surface. 12. The juvenile seat of claim 11, wherein a portion of the right-side lock is arranged to lie under the seat bottom. 13. The juvenile seat of claim 11, wherein the left pillar is formed to include lower and upper anchor sockets situated in the left pillar-receiving chamber and arranged to open in a direction facing toward the right pillar and the lock means includes a left-side lock arranged to extend through the left pillar-receiving chamber into the lower anchor socket to link the seat base to the left pillar to support the seat bottom at a first elevation above the underlying surface and alternately into the upper anchor socket to link the seat base to the left pillar to support the seat bottom at a higher second elevation above the underlying surface. 14. The juvenile seat of claim 11, wherein the right pillar is formed to include a travel channel arranged to intersect the lower and upper anchor sockets and the right-side lock includes a right base retainer mounted for movement relative to the seat bottom to extend into a selected one of the lower and upper anchor sockets and a right retainer-actuator button located outside the right pillar-receiving chamber and arranged to extend through the travel channel to mate with the right base retainer to provide means for moving the right base retainer relative to the right pillar to engage and disengage the lower and upper anchor sockets. 15. The juvenile seat of claim 14, wherein the right base retainer includes a movable retainer latch coupled to the right retainer-actuated button and spring means for yieldably urging the movable retainer latch normally into one of the lower and upper anchor sockets upon movement of the seat base relative to the right pillar to align the movable retainer latch in confronting relation to said one of the lower and upper anchor sockets. 16. The juvenile seat of claim 11, wherein the right-side lock includes a movable retainer latch arranged to lie under the seat bottom and spring means for yieldably urging the movable retainer latch normally into one of the lower and upper anchor sockets upon movement of the seat base relative to the right pillar to align the movable retainer latch in confronting relation to said one of the lower and upper anchor sockets and the spring means is located under the seat bottom and outside of the right pillar-receiving chamber. 17. The juvenile seat of claim 1 wherein the right inner wall includes a guide rail arranged to extend into the right pillar-receiving chamber and the right pillar is formed to include channel means for receiving the guide rail therein during up-and-down movement of the seat base relative to the right pillar. 18. The juvenile seat of claim 1, wherein the right side wall includes a guide rail arranged to extend into the right pillar-receiving chamber and the right pillar is formed to include channel means for receiving the guide rail therein during up-and-down movement of the seat base relative to the right pillar.