-
公开(公告)号：US5366051A
公开(公告)日：1994-11-22
申请号：US875354
申请日：1992-04-29
摘要： The present invention pertains to a ladder. The ladder includes a first plastic side rail, at least a portion of which is hollow. The ladder also includes a second plastic side rail, at least a portion of which is hollow. The second side rail is in parallel with the first side rail. Additionally, the ladder includes a plurality of steps, each of which is attached to the first and second side rails at predetermined locations such that each step forms a flat weight bearing platform upon which a user can stand. The first and second side rails each have a plurality of pockets having solid cross sections disposed therealong at predetermined positions, and each of the steps are attached to the first and second side rails at corresponding pockets therein with fasteners through holes in the solid cross sections. The present invention also pertains to a stepladder. The stepladder includes a first side rail. The stepladder also includes a second side rail adjacent to and in parallel with the first side rail. There are a plurality of steps, each of which is attached to the first and second side rails at predetermined locations such that each step forms a flat weight bearing platform upon which a user can stand. The first and second side rails and the steps form a front section. Additionally, there is a third side rail adjacent to the first section. There is also a fourth side rail adjacent to and in parallel with the third side rail. The stepladder also includes a first bracing element attached to the third and fourth side rails to support them. The third and fourth side rails and first bracing element define a rear section. Moreover, there is a top which is connected to the front and rear sections at the top ends of the first and second rails, and the top ends of the third and fourth rails such that the front and rear sections form a V-shape when deployed and fold on top of each other when undeployed. The stepladder also includes a shelf in pivotal relationship with respect to the front and rear sections such that when the front and rear sections are deployed, the shelf automatically extends essentially perpendicularly with the front and rear sections, and when the front and rear sections are folded on top of each other to be undeployed, the shelf automatically folds into an essentially parallel position with respect to the front and rear sections.
-
公开(公告)号：US5259480A
公开(公告)日：1993-11-09
申请号：US906587
申请日：1992-06-30
CPC分类号： E06C7/14
摘要： The present invention is a ladder top for a ladder. The ladder top has a top panel having a perimeter. The perimeter has at least a first edge, a second edge, a third edge and a fourth edge. The ladder top also has a first side wall extending in an integral fashion from the first edge, and an opposing second side wall extending in an integral fashion from the second edge. The first side wall has at least one slot through which accessories can be attached. A third side wall extends in an integral fashion from the third edge and in juxtaposition with the first and second side walls. A fourth side wall extends in an integral fashion from the fourth edge and in juxtaposition with the first and second side walls and opposing the third side wall. The ladder is connected to the ladder top through the third and fourth side walls. Preferably, the first side wall has two slots in a spaced relationship with each other. Preferably, the slots are rectangularly shaped with rounded ends. Preferably, the top panel has buttressing integrally joined and extending from its underside for strengthening the top panel.
摘要翻译： 本发明是梯子的梯子。 梯子顶部具有具有周边的顶部面板。 该周边具有至少第一边缘，第二边缘，第三边缘和第四边缘。 梯子顶部还具有从第一边缘以一体的方式延伸的第一侧壁和从第二边缘以一体的方式延伸的相对的第二侧壁。 第一侧壁具有至少一个狭槽，附件可以通过其附接。 第三侧壁从第三边缘以与第一和第二侧壁并置的方式一体地延伸。 第四侧壁从第四边缘以一体的方式延伸并且与第一和第二侧壁并置并与第三侧壁相对。 梯子通过第三和第四侧壁连接到梯子顶部。 优选地，第一侧壁具有彼此间隔开的关系的两个槽。 优选地，狭槽具有圆形端部的矩形形状。 优选地，顶板具有一体地连接并从其下侧延伸的支撑，用于加强顶板。
-
3.发明授权Ladder, member for connecting a rail to a horizontal element of a ladder, and method 失效梯子，用于将轨道连接到梯子的水平元件的构件以及方法
公开(公告)号：US5636706A
公开(公告)日：1997-06-10
申请号：US272154
申请日：1994-07-08
申请人： David E. Plotner , Edward E. Heald , Richard P. Sulecki , Frederick J. Bartnicki , Mitchell H. Hetrich
发明人： David E. Plotner , Edward E. Heald , Richard P. Sulecki , Frederick J. Bartnicki , Mitchell H. Hetrich
摘要： A member for connecting a rail to a horizontal element of a ladder. The member comprises a first portion that connects to the horizontal member. The member also comprises a second portion which connects to the rail and extends essentially in parallel with the rail. The second portion is integrally connected to the first portion such that the first portion and the second portion are one continuous piece. The second portion is in an angular relationship of less than 90.degree. with the first portion. A member for connecting a rail having a first rail flange and a second rail flange to a horizontal element of a ladder. The member comprises a first arm which connects to the first rail flange and the horizontal member. The member is also comprised of a second arm which connects to the second rail flange and the horizontal member. Additionally, the member comprises a central body which is integrally connected to the second arm and the first arm. The first arm, second arm and central body are one continuous piece, preferably of plastic. A ladder comprised of the member for each rail. A method for using a ladder. The method comprises the steps of placing a load on the ladder. Next there is the step of transferring forces generated from the load to a member connected between a rail of the ladder and a first step of the ladder.
摘要翻译： 用于将轨道连接到梯子的水平元件的构件。 该构件包括连接到水平构件的第一部分。 该构件还包括连接到轨道并基本上与轨道平行延伸的第二部分。 第二部分与第一部分一体地连接，使得第一部分和第二部分是一个连续的部分。 第二部分与第一部分的角度关系小于90°。 用于将具有第一轨道法兰和第二轨道法兰的轨道连接到梯子的水平元件的构件。 该构件包括连接到第一轨道法兰和水平构件的第一臂。 该构件还包括连接到第二导轨凸缘和水平构件的第二臂。 另外，构件包括与第二臂和第一臂一体地连接的中心体。 第一臂，第二臂和中心体是一个连续件，最好是塑料。 由每个轨道的构件组成的梯子。 使用梯子的方法。 该方法包括将负载放置在梯子上的步骤。 接下来，将从负载产生的力转移到连接在梯子的轨道与梯子的第一台阶之间的构件的步骤。
-
公开(公告)号：USD340291S
公开(公告)日：1993-10-12
申请号：US729005
申请日：1991-07-12
-
5.发明授权Ladder, member for connecting a rail to a horizontal element of a ladder, and method 失效梯子，用于将轨道连接到梯子的水平元件的构件以及方法
公开(公告)号：US06142255A
公开(公告)日：2000-11-07
申请号：US869494
申请日：1997-06-05
申请人： David E. Plotner , Edward E. Heald , Richard P. Sulecki , Frederick J. Bartnicki , Mitchell H. Hetrich
发明人： David E. Plotner , Edward E. Heald , Richard P. Sulecki , Frederick J. Bartnicki , Mitchell H. Hetrich
摘要： A member for connecting a rail to a horizontal element of a ladder. The member comprises a first portion that connects to the horizontal member. The member also comprises a second portion which connects to the rail and extends essentially in parallel with the rail. The second portion is integrally connected to the first portion such that the first portion and the second portion are one continuous piece. The second portion is in an angular relationship of less than 90.degree. with the first portion. A member for connecting a rail having a first rail flange and a second rail flange to a horizontal element of a ladder. The member comprises a first arm which connects to the first rail flange and the horizontal member. The member is also comprised of a second arm which connects to the second rail flange and the horizontal member. Additionally, the member comprises a central body which is integrally connected to the second arm and the first arm. The first arm, second arm and central body are one continuous piece, preferably of plastic. A ladder comprised of the member for each rail. A method for using a ladder. The method comprises the steps of placing a load on the ladder. Next there is the step of transferring forces generated from the load to a member connected between a rail of the ladder and a first step of the ladder.
摘要翻译： 用于将轨道连接到梯子的水平元件的构件。 该构件包括连接到水平构件的第一部分。 该构件还包括连接到轨道并基本上与轨道平行延伸的第二部分。 第二部分与第一部分一体地连接，使得第一部分和第二部分是一个连续的部分。 第二部分与第一部分的角度关系小于90°。 用于将具有第一轨道法兰和第二轨道法兰的轨道连接到梯子的水平元件的构件。 该构件包括连接到第一轨道法兰和水平构件的第一臂。 该构件还包括连接到第二导轨凸缘和水平构件的第二臂。 另外，构件包括与第二臂和第一臂一体地连接的中心体。 第一臂，第二臂和中心体是一个连续件，最好是塑料。 由每个轨道的构件组成的梯子。 使用梯子的方法。 该方法包括将负载放置在梯子上的步骤。 接下来，将从负载产生的力转移到连接在梯子的轨道与梯子的第一台阶之间的构件的步骤。
-
公开(公告)号：US5791439A
公开(公告)日：1998-08-11
申请号：US426194
申请日：1995-04-21
申请人： David E. Plotner , Edward E. Heald , Kevin L. McIntire , Richard P. Sulecki , Mitchell H. Hetrich , Frederick J. Bartnicki
发明人： David E. Plotner , Edward E. Heald , Kevin L. McIntire , Richard P. Sulecki , Mitchell H. Hetrich , Frederick J. Bartnicki
摘要： A member for connecting a rail to a horizontal element of a ladder. The member comprises a first portion that connects to the horizontal member. The member also comprises a second portion which connects to the rail and extends essentially in parallel with the rail. The second portion is integrally connected to the first portion such that the first portion and the second portion are one continuous piece. The second portion is in an angular relationship of less than 90.degree. with the first portion. A member for connecting a rail having a first rail flange and a second rail flange to a horizontal element of a ladder. The member comprises a first arm which connects to the first rail flange and the horizontal member. The member is also comprised of a second arm which connects to the second rail flange and the horizontal member. Additionally, the member comprises a central body which is integrally connected to the second arm and the first arm. The first arm, second arm and central body are one continuous piece, preferably of plastic. A ladder comprised of the member for each rail. A method for using a ladder. The method comprises the steps of placing a load on the ladder. Next there is the step of transferring forces generated from the load to a member connected between a rail of the ladder and a first step of the ladder. The member can include an apparatus for holding a washer. An apparatus for holding a washer. The apparatus comprises a backing having a backing surface. The apparatus also comprises a retainer extending from the backing. The retainer holds the washer. The retainer has a front through which the washer is introduced into the retainer. Additionally, the apparatus comprises a stop extending from the backing. The stop is disposed adjacent to the front of the retainer and prevents the washer from coming out of the retainer when the washer is in the retainer. The present invention pertains to a method for holding a washer. The method comprises the steps of positioning the washer at a front of a retainer. Then there is the step of moving the washer past a stop adjacent the front of the retainer. Next there is the step of seating the washer in the retainer, with the stop preventing the washer from coming out of the retainer.
-
公开(公告)号：USD340773S
公开(公告)日：1993-10-26
申请号：US471129
申请日：1990-01-26
-
公开(公告)号：US5067589A
公开(公告)日：1991-11-26
申请号：US560378
申请日：1990-07-31
IPC分类号： E04G1/15
CPC分类号： E04G1/152 , E04G2001/157
摘要： A support having two support sections slidably engaged with each other includes a lock that can be used to releasably fix the size of the support surface defined by the support sections. The lock is mounted to one of the support sections and includes a shaft that can be received by any of the series of openings defined by the remaining support section. When the shaft is located within an opening, the positions of the support sections relative to each other are fixed, and the support surface will remain stable during use.
摘要翻译： 具有可滑动地彼此接合的两个支撑部分的支撑件包括可用于可释放地固定由支撑部分限定的支撑表面的尺寸的锁。 该锁被安装到一个支撑部分，并且包括可以由剩余的支撑部分限定的任何一系列开口接受的轴。 当轴位于开口内时，支撑部分相对于彼此的位置是固定的，并且在使用期间支撑表面将保持稳定。
-
公开(公告)号：USD422717S
公开(公告)日：2000-04-11
申请号：US104975
申请日：1999-05-13
-
公开(公告)号：USD413990S
公开(公告)日：1999-09-14
申请号：US96139
申请日：1998-11-05
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.031 秒)