1. Field of Invention
This invention relates generally to storage units such as lockers, cabinets and similar structures, and more specifically to storage units of the type having a rigid door jamb providing an opening into the unit and adapted to receive a moveable door for opening and closing the opening into the storage units.
2. Background Art
Storage units, such as lockers and cabinets, commonly include rigid door jambs providing an opening into the unit. The door jambs are designed to be strong enough to support a moveable door that is pivotally attached to one of the jambs, for opening and closing the opening into the storage unit.
In many locker constructions the side and rear walls are somewhat flexible and not of a desired strength to provide a door jamb for pivotally receiving a door thereon. In these constructions it is very common to include a separate unit or member attached to the body of the storage unit to form a door jamb having enhanced strength. For example, U.S. Pat. No. 4,289,363, issued to Andersson et al., discloses a locker construction in which a separate U-shaped member 33 cooperates with a peripheral wall section of the locker to provide a door jamb of enhanced strength. In this construction an in-turned flange 30 is provided on the outer shell to aid in retaining the U-shaped member 33 in place.
U.S. Patent No. 2,651,559 (O'Connor) and U.S. Pat. No. 4,681,380 (Carl) disclose storage and/or cabinet structures, but do not relate in any way to structures requiring a rigidified door jamb for moveably supporting a door thereon.
In other locker constructions it is common practice to form the peripheral walls of multiple sheet metal sections that are joined together by bolts or similar fastening elements. Bolts and other fastening elements tend to protrude outwardly from the peripheral walls of the locker and therefore prevent the close, side-by-side mounting of multiple lockers on a floor or other supporting structure. It is highly desirable to construct lockers or other storage units so that they can be mounted in a side-by-side arrangement without any gaps between them.
Although storage units in the form of lockers and cabinets have been well accepted in the industry, a need exists for a simplified construction in which a peripheral body of the storage unit includes door jamb sections defining an opening into the storage unit and wherein the door jambs provide a portion of a peripheral body of the storage unit that also includes side wall sections and a rear wall section. The present invention relates to such a simplified, reliable and easy to form construction.
A storage unit in accordance with this invention includes a top wall, a bottom wall and a peripheral body joined to the top and bottom wall. The peripheral body includes a unitary metal member providing a rear wall section, peripheral side wall sections and transversely spaced-apart door jamb sections, the door jamb sections define an opening into the storage unit and are adapted to receive a moveable door for opening and closing the opening into the storage unit.
In a preferred embodiment of the invention the door jamb sections are each formed by contiguous sections of the metal member employed to form the rear wall section and peripheral side wall sections of the unit, said contiguous sections overlying each other to provide door jambs of a substantially double-thickness section of the unitary metal member.
In a preferred construction each of the door jamb sections includes a front wall segment, an in-turned inner segment joined to a first edge of the front wall segment for receiving a door adjacent thereto, an in-turned outer segment joined to a second edge of said front wall segment and constituting a forward segment of a respective peripheral side wall section.
In the most preferred embodiment each of the door jamb sections also includes a transversely extended segment joined to an inner edge of the in-turned inner segment so as to be contiguous to an inner surface of a door pivotally attached to the jamb when the door is in a position closing the opening into the storage unit.
In accordance with one embodiment of the invention the entire peripheral body of the storage unit is provided by a single, unitary metal member.
In an alternative embodiment of the invention the peripheral body is provided by a pair of unitary metal members.
In an embodiment of the invention wherein the peripheral body is provided by a pair of unitary metal members, one of the unitary metal members provides an upper segment of the side wall, rear wall and door jamb sections of the storage unit, and the other of the unitary metal members provides a lower segment of said side wall, rear wall and door jamb sections.
In an alternative embodiment wherein the peripheral body is provided by a pair of unitary metal members one of the unitary members provides a complete first door jamb section, a first complete side wall section and a part of a rear wall section; the other of said unitary metal members provides a second complete door jamb section, a second complete side wall section and the remaining part of said rear wall section.
In a preferred embodiment of this invention the top wall of the storage unit is a unitary member including an upper panel overlying a top opening into a peripheral body of the storage unit, a front panel extending generally normal to said upper panel from a forward end thereof and terminating in a forward edge spaced from said upper panel, said front panel providing an upper, front wall section of said storage unit, a panel extending rearwardly from said forward edge and terminating in a rear edge, said panel adapted to overly an upper surface of a moveable door attached to a door jamb when the door is in a position closing the opening into the storage unit, and a panel extending generally normal from said rear edge for overlying an inner surface of the door adjacent an upper part thereof when said door is in a position closing said opening into said storage unit.
In a preferred embodiment the bottom wall of the storage unit includes a unitary member including a horizontal bottom panel overlying a bottom opening of the peripheral body, a front panel extending generally normal to the horizontal bottom panel from a forward end of the horizontal bottom panel, said front panel terminating in a forward edge space from the horizontal bottom panel and providing a lower, front wall of the storage unit.
Other objects and advantages of this invention will become apparent by referring to the description of the drawings which follows taken in conjunction with the detailed description of preferred embodiments of this invention.
Reference throughout this application to “unitary” in describing one or more metal members forming the storage unit means that the specified metal member is a continuous sheet free of welds, bolts and/or similar fastening devices to attach sections together.
Reference throughout this application to “section” in describing the peripheral body of the storage unit and portions of the peripheral body of the storage unit, e.g., “rear wall section,” “peripheral side wall sections,” “doorjamb sections,” generically means either the entire part being referred to or a portion of that part unless the context clearly indicates otherwise.
Reference to “storage unit” means lockers, cabinets and similar structures employing an enclosed body for storing items and having an opening into the body provided by spaced-apart door jams to which a door is moveably attached for opening and closing the opening into the body.
A storage unit in accordance with this invention, in the form of a locker is shown at 10 in
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The door jamb sections 24, 26 further include an in-turned outer segment 38 joined to a second edge 40 of the front wall segment 28 and constituting a reinforced, forward segment of peripheral side wall sections 20, 22, respectively.
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For purposes of simplicity, only the manner of forming the door jamb section 24 and its associated peripheral side wall section 20 will be described, it being understood that the same sequence of steps is provided simultaneously in forming the other door jamb section 26 and its associated side wall 22.
As the planar metal sheet 40 is directed in the machine direction through the forming members of the press brake apparatus the metal sheet is formed into the peripheral body section 16. For purposes of simplicity, the sequential steps in forming one of the door jamb sections 24 and its corresponding side wall section 20 will be described, it being understood that a corresponding set of forming units are provided adjacent the opposed transverse side of the metal sheet 40 for simultaneous forming the other door jamb section 26 and its associated peripheral side wall section 22.
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For example, in forming a storage unit 10 in the form of a locker that is approximately 15 inches deep and 12 inches wide, the metal sheet 40 needs to have a transverse dimension T of approximately 55 inches; taking into account the stretching of the sheet 40 that occurs during the various bending stages.
Coils of metal sheeting commonly are available in a variety of axial lengths, e.g., 48 inches, 60 inches and 72 inches. Therefore, if the height of the storage unit to be formed is required to be either 48 inches, 60 inches or 72 inches, then the axial dimension of the sheet will constitute the height dimension of the storage unit to be formed and will be directed in the machine direction through the five (5) forming units of the press brake apparatus.
Thus, the metal sheet 40 will be unwound from the coil a distance of approximately 55 inches to provide the desired length of sheeting to form the transverse dimension of the peripheral body section 16.
From the above explanation it should be apparent that after the appropriate length of sheet material (e.g., approximately 55 inches) is cut from the coil, the sheet 40 needs to be re-oriented 90 degrees prior to forming so that the axial dimension of the sheet is directed in the machine direction through the press brake apparatus, and the length of the sheet unwound from the coil constitutes the transverse dimension T of the sheet, as illustrated in
Alternatively, the peripheral body section 16 can be formed as a single, unitary member without requiring reorientation of the sheet 40 after it is cut from a coil when the axial dimension of the coil is equal to or greater than the transverse length of sheet material required to form the transverse dimension of the peripheral body section 16 of the storage unit.
For example, in the exemplary embodiment described above, the length of sheet material required to form the peripheral body section is approximately 55 inches. Thus, a coil of metal sheeting having an axial length of 60 inches can be trimmed to form the required axial dimension of the peripheral body section 16, and the length of the sheeting unwound from the coil will be equal to the height of the storage unit to be formed. In this latter embodiment an additional trimming operation is required to provide the proper transverse dimension of the coil sheet 40 for forming the peripheral body section 16. However, the sheet, once severed from the coil and trimmed, will not need to be reoriented to be directed through the press brake device. Thus, the entire forming operation can be carried out in line, beginning with the unwinding of the coil of metal sheeting.
The latter method of obtaining the planar sheet 40 from the coil permits the formation of a peripheral body unit 16 as a single, unitary member to form a storage unit of any height, provided that the transverse dimension of the coil is of a required length to form the transverse dimensions of the peripheral side wall sections, rear wall section and transversely spaced-apart door jamb sections.
If the axial dimension of the coil of metal sheeting is not of a sufficient dimension to permit the unitary formation of the rear wall section, peripheral side wall sections and transversely spaced-apart door jamb sections of the peripheral body 16, but is of a dimension equal to the desired height of the storage unit, then the first method described above for obtaining the planar metal sheet 40 can be employed. That is, the length of sheeting required to form the transverse dimensions of the rear wall section, peripheral side wall sections and transversely spaced-apart door jamb sections as a single planar member is unwound from the coil and then severed to form the flat metal sheet 40. The sheet 40 then is reoriented 90 degrees to direct the axial dimension of the sheet in the machine direction through the press brake apparatus.
In some constructions it may not be possible or desirable to form the storage unit with a single, unitary peripheral body section 16 as shown in
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Each of the upper and lower body sections 16A and 16B can be formed in the same manner. For example, assuming that the required height of the storage unit 10 is twice the axial dimension of a standard coil of sheet material, separate sheets will be cut from the coil and employed to form the upper and lower body sections 16A, 16B, respectively. The peripheral transverse dimension of each of the upper and lower body sections 16A, 16B of the storage unit is a unitary length of material, which is unwound from a coil of metal sheeting.
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The alternative storage unit 200 illustrated in
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It also should be noted that the front panel 72 of the top wall 12 constitutes an upper front wall of the opening into the storage unit (
The peripheral panel sections 84 of the top wall 12 are positioned in close frictional engagement with inner surfaces of the rear wall section 18 and peripheral side wall sections 20, 22 of the storage unit and desirably are welded to the body section. In addition, the downwardly extending panel 82 of the top wall 12 is closely adjacent the transverse sections 34 of the door jambs 24, 26 to cooperate with said transverse sections in providing a stop for the door. Most preferably the downwardly extending panel 82 is welded or otherwise secured to the transverse sections 34 to provide a continuous part of the door stop and also enhance the rigidity of the storage unit construction.
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It should be noted that the entire closure of the storage unit 10, excluding the door 27, is formed of only three unitary members; namely, the peripheral body section 16, top wall 12 and bottom wall 14. In certain embodiments, as is illustrated at 100 and 200 in
Each of the locker constructions 10, 100 and 200 include a separate door and latching mechanism of any conventional design, which does not constitute a limitation on the present