Q : Adjustable drawer slides zone condition of drawer slide capacity do you test, pls9 A: The loading capacity is tested at full extended condition. Based on the mechanism involved in the operation, there are roller and ball bearing adjustablw. File Rail Systems. Access to the detent mechanism permits adjustment of the detent mechanism to adjust the detent force which the mechanism provides when the closed drawer zkne opened. Noise reduction is provided by the interaction of the flex finger 22 and adjustable drawer slides zone in-stop flange

The disconnect allows the user to remove the inner mount of the slide from the chassis of the slide. Common types of disconnects include rail disconnects, lever disconnects or friction disconnects. The dynamic load is the weight of a fully assembled and installed unit being cycled in and out with its moving load. Given the needs of a particular industry, the dynamic load helps you to assess the maximum weight your new pair of slides will carry over a prescribed amount of time, or through its expected "life".

Horizontal mounting of a slide under a drawer. Most slides are not intended to be used in this position, and though it can be done, usually the total amount of weight capacity Soft Close Drawer Slides Not Smooth Zone that a slide can bear suffers. Friction Disconnects, also called a push latch, operate by allowing the user to keep pulling the drawer out over the resistance offered by its bearings.

Friction disconnects do not offer levers or latch mechanisms and instead operate purely through the friction of the system. Full Extension. Allows drawer to open the full length of the slide, providing greater access and making it easier for you to use in general. Full extension slides are ideal for kitchens and any other areas where you might want unobstructed access to the tool you are looking for. Grooved drawer slides are ideal for a variety of applications where the amount of space in the cabinet and drawer is minimal compared to other formations.

Grooved drawer slides are generally intended for living rooms, bedrooms, and home offices, and thus have extremely smooth lateral motion. Handed drawer slides are designed for usage on either the left or right. Unhanded, or non-handed drawer slides can be used on either side and are more popular. Heavy Duty Drawer Slides. Heavy duty drawer slides range in size from 10" up to 60", with a weight capacity up to lb, lb, and typically up to lbs. Heavy duty drawer slides are commonly used in applications that demand quick access to heavy equipment and tools.

Heavy duty drawer slides are commonly found within industrial settings like machinery, safety gates, motion guides, tool box drawers, commercial restaurant equipment, freezers, fixtures for automotive Heavy duty drawer slides range in size from 10" up to 60", with a weight capacity up to lb, lb, and typically up to lbs. Additionally heavy duty locking drawer slides are commonly used for mobile applications where stability after accessing an item is absolutely necessary. Thus, heavy duty locking drawer slides can commonly be found in service utility truck beds, fire trucks, SWAT vehicles, expedition vehicles, tool boxes for truck beds, slide outs for recreational vehicle RV basements, trailers, yachts, and other applications that require the drawer stay secure.

A hold-in is a type of detent specifically designed to keep a slide closed until you exert enough force to open it. A hold-out is a type of detent designed to ensure that the drawer is kept open until you exert enough force to close it fully. The distance between the side of the drawer box and the cabinet where the slide is attached. This is often a limiting factor in replacing slides, but is key to calculate when figuring out what kind of slide you will need.

Learn more about the importance of installation width from our Definitive Guide to Drawer Slides. Is the part of the drawer slide between the inner, or drawer member, that attaches to the drawer, and the outer chassis, or cabinet member that attaches to the cabinet itself. The Intermediate member is essential for keeping the ball bearings functioning smoothly.

Keyboard Slide. Working long hours at an uncomfortable work station is an unnecessary evil that too many Americans unfortunately opt for. OVIS offers an affordable and adjustable keyboard tray so that users can quickly and cheaply fix any issues with typing at an uncomfortable desk.

Drawer removal is achieved by releasing a lever and pulling the drawer away from the cabinet. The load rating is the capacity for a slide to withstand a certain amount of weight safely and repeatedly as specified by the manufacturer when fully extended. Factors such as deflection and dynamic load are used to calculate this figure.

A lock-in is the mechanism which keeps a slide locked close until you pull the lever to release it. A lock-out is the mechanism which keeps a slide locked open until you pull the lever to release it.

Over Travel. Over travel, or over extension drawer slides open beyond full extension, giving you total visibility and access for your tools. Over-travel drawer slides are especially ideal in situations where a large countertop or some other ledge might keep you from being able to full see the contents of the drawer. The slide has only 2 members and as a result has an under-travel because it has no intermediate member.

Progressive movement is a result of all slide members moving simultaneously. This type of movement provides extremely smooth, quiet movement. A rail disconnect mechanism on a drawer slide provides a rail with latch that usually rests on top of the drawer slide that allows you to easily lift a drawer from a slide.

Screw head clearance refers to the internal distance, or clearance, between a slides inner member and its chassis. This allows you to figure out what the maximum fastener height that can be accommodated inside of a drawer slide unit without interfering with the motion of the ball retainers.

A self-closing drawer has an added spring mechanism which allows the drawer to keep itself closed thus preventing any bounce back or slamming that might otherwise occur. Shock blocks are essential for the long durability of your slides as they minimize vibration and pressure on the components of a slide during closing.

Side clearance specifies the amount of space needed on each side of a drawer unit pair in order to mount it without interference from the cabinet.

A slide that mounts to the side of the drawer and to the side of the cabinet or the cabinet face frame. Learn more about choosing the correct side mount drawer slide in our Definitive Guide to Drawer Slides. This allows adjacent members to be longitudinally slid back and forth relative to each to accomplish such tasks, for example, as opening and closing a drawer to which the drawer slide is attached.

Returning to FIG. As illustrated in. The location of the adjustable detent mechanism at this position enables easy access to the mechanism, for example by slightly opening the drawer, after installation of the slide.

Access to the detent mechanism permits adjustment of the detent mechanism to adjust the detent force which the mechanism provides when the closed drawer is opened. In an alternative embodiment, however, the detent mechanism is located at the rear of the slide.

With respect to directions front and rear refer to locations on the slide approximate a front of a drawer and a rear of a drawer, respectively. As may be seen more fully in FIG. Preferably, the detent mechanism of the present invention is formed of a molded plastic.

The generally elliptical shape, or body, and head together comprise a closed band. The closed band includes a gradually sloping surface 19 extending from a midpoint of the length of the elliptical body toward a top 27 of the head. An opposite surface 21 extends away from the sloping surface 19 on the opposite side of the top of the head.

As shown in FIG. Forming the arm and the body in this manner provides for increased ease in assembly of the detent mechanism. Once the detent mechanism is ready for placement in a drawer slide, however, the bridge is ruptured. This allows a cylindrical head 34 at one end of the arm 24 to be placed in a socket 32 on the inside of the closed band formed by the body. Provided at the opposite of arm 24 is a shaped surface into which a tooth or indentation 36 is molded.

Extending beyond the tooth 36, in the direction away from the cylindrical head 34, is a tapered surface The tapered surface, its extension beyond the tooth, and its location along one side of the arm may be seen in FIG. Also shown in FIG. The slots are adapted to receive a small screwdriver blade or the like to allow for increased ease of rotating the arm once the cylindrical head is placed in the socket of the body.

The adjustable arm provides a means for adjusting the detent force produced by mechanism As may be seen in FIG. To avoid interference with motion of the intermediate slide member by the detent mechanism in one embodiment a cutout 50 shown in FIG.

The intermediate member cutout or relief 50, provides space sufficient for the inner slide member to telescopically be received within the intermediate member without interfering with the travel of the adjustable detent mechanism. In another embodiment, however, the longitudinal length of the intermediate slide member is such that a cut-out is not necessary as the portion of the intermediate slide which would be cut out is simply not there. The detent mechanism is therefore adapted to contact items extending from the outer slide member and towards the intermediate slide member, and the intermediate slide member is configured to allow the detent to contact items extending from the outer slide member.

Accordingly, in the embodiment of FIGS. As illustrated the tab is part of a formed member 26 is created by providing a cut-out or notch in the leading edge of the outer member 14 and bending and forming a tab extending from the web of slide member 14 toward the intermediate slide member Thus, as seen in FIGS.

The tabs extends into the path of the detent mechanism so as to engage surface 19 as the drawer is closed and surface 21 when the drawer is in the closed position and when a force is initially applied to the drawer to overcome the detent or holding force. As the tab contacts surface 21 or surface 19, the band forming the detent mechanism is compressed, or deforms or flexes, particularly the portion of the band formed by the head.

The arm, however, resists compression of the band. As the position of the arm is adjustable within the band, the ease of compression of the band is also adjustable.

In operation, when the drawer slide is being closed and the members of the slide being telescoped within one another, surface 19 on the adjustable detent mechanism encounters stop member 26 and provides a low amount of resistance to closure of the drawer upon which the drawer slide is mounted. When fully closed, flex finger 22 encounters end-stop flange 28 to provide cushioning of the inner member as the drawer slide is closed and to reduce or eliminate the noise of the inner member coming to a complete stop within the drawer slide itself.

When the slide is fully closed, surface 21 , which is oppositely sloped from slope 19, along the head of the detent bears against the inner surface of stop member The combination of flex finger 22 bearing against end-stop flange 28 and surface 21 bearing against formed stop end member 26 creates a locking effect to hold the drawer securely closed. When the drawer is opened the adjustable detent mechanism and the position of adjustable arm 24 determine the amount of force that is required to pull the drawer slide out and open the drawer.

Depending on the application, the drawer slide may be used in a tool box or it may be used in a cabinet or desk. When used in a tool box, a greater detent or holding force is desirable. When utilized in a drawer or cabinet a lower detent or holding force is desirable.

By adjusting the flexible arm by means of a screw driver inserted in slot 40 of the adjustable arm and twisting the toothed edge of the adjustable arm toward head 20, the fulcrum point is moved toward the head shortening the fulcrum arm and increasing the detent or holding force.

Conversely when the toothed surface of adjustable arm 24 is moved in the opposite direction toward flex finger 22, the fulcrum arm is lengthened and the amount of detent or holding force created by the adjustable mechanism is reduced.

Adjustment of the detent force provided by the mechanism is accomplished through positioning of the arm within the body.

One end of the arm, the end with the cylindrical head, is securely maintained in the socket. The tooth at the other end is selectively engaged with one of the teeth 38 provided on the interior surface of the envelope adjacent the top of the adjustable detent mechanism. The use of teeth on the interior surface of the envelope is advantageous in that the position of the arm is adjustable in discrete increments, providing quantified step with adjustment of the detent mechanism.

The detent force is determined by the positioning of the adjustable arm with respect to a specific tooth in the inner surface of the envelope. When the engagement is closer to flex finger 22, the fulcrum arm is lengthened and the detent force reduced. When the arm is engaged with a tooth closer to the head 20 of the detent mechanism, the fulcrum arm is shortened and the detent force increased.

Typical ranges of detent or holding forces range from two to twelve pounds of force. The detent or holding force required can be thereafter adjusted by rotating arm 24 toward the flex finger or toward the head of the detent mechanism as desired by the user. As may be viewed in FIG.

Tapered surface 48 bears against surface 46 located in cut-out 44 to retain the adjustable arm in place. This retention of the arm is accomplished by surface 48 bearing against surface 46 and by the inner surface or web of the inner slide member on the opposite side of arm Thus, the cut-out serves as a guide in which travel of the tapered surface is restricted by placement of the detent mechanism against the web of the inner slide member. The adjustable detent mechanism is mounted at the front of the slide and is maintained or held in position by bending the wall of the inner slide member over the edge of the detent mechanism and locking the detent mechanism in position against the web on the inner side of the inner slide member.

In one embodiment and as can be seen in FIG. Tab includes a rectangular base portion and an upper angled surface extending from the rectangular base portion. Tab similarly has an angled surface, with the angled surfaces increasing the ease of insertion and replacement of the detent mechanism.

Accordingly, the tabs extend from the detent such that the tabs are parallel to the web of the inner slide member, and are placed against the inner slide member. The tabs may be placed, therefore in bayonet pockets formed in the web of the inner slide member, for example. In another embodiment, however, and as illustrated in FIG. Cut-outs and are formed in the inner slide member bearing raceways adapted to receive the tabs. Insertion of the tabs into the cut-outs securely holds the detent mechanism in place on the inner slide member.

In addition, the detent mechanism of FIG. The peg extends from the side of the detent mechanism on which the cut out 49 is located, and extends orthogonally from the tabs , , The peg, therefore, extends into the web of the inner slide member when the detent mechanism is installed on the inner slide member.

Accordingly, the web of the inner slide member is pierced with an aperture not shown adapted to receive and engage the peg. Advantageously, the peg and aperture serve to reduce pivoting of the detent mechanism when the tab or strike post of the outer slide member is in contact with the Adjustable Drawer Slides 2020 detent mechanism.

This is beneficial as such pivoting acts to modify an expected detent force, as well as to increase wear and the possibility of damage to the detent mechanism. In an alternate embodiment the function of the tab of the stop-end member is performed by a guide block affixed to the outer slide member. The guide block is formed of plastic, and is inserted between the bearing raceways of the outer slide member.

The guide block includes atab, or strike post, which extends towards the intermediate slide member. The strike post contacts the detent mechanism as the drawer is shut. Advantageously, the use of a plastic strike post minimizes wear on the detent mechanisms. The guide block includes pegs which extend through apertures in the web of the outer slide member.

As may be more fully seen in FIG. The runners include molded hemispheres protruding away from the bearing raceways of the outer slide member. The hemispheres reduce the contact area between the guideblock and the intermediate slide member, thereby increasing the ease of removing the intermediate slide member from the outer slide member, while still providing support between the slide members when the slides are installed.

A connector , similar in shape and concept to the webs of the slide members, connects the runners. Extending from the connector is a strike post The strike post is towards a forward edge of the guide block, and is adapted to contact the detent mechanism.

In one embodiment, and as illustrated in FIGs. Support of the intermediate slide member provides for increased consistency in relative positioning of the slide members under varying loading of the slides, and therefore increased consistency in where the strike post Adjustable Drawer Slides Quotes contacts the detent mechanism.

In one embodiment of the invention, as shown in FIG. Noise reduction is provided by the interaction of the flex finger 22 and the in-stop flange Further advantages include the provision of a mechanism in which the adjustable arm 24 is molded as part of the adjustable detent mechanism which reduces possibility of separation of the arm and the body.

Although this invention has been described in certain specific embodiments, additional modifications and variations will be apparent to those skilled in the art. It is therefore to be understood that this invention may be practiced otherwise than is specifically described. Thus the present embodiments of the invention should be considered as illustrative and not restrictive. The scope of the invention is to be indicated by claims and their equivalents rather than limited to the foregoing description.

An adjustable detent mechanism for a telescoping drawer slide assembly having a plurality of telescoping members comprising: a body defining a generally elliptical shapeable envelope mounted on one of the members; an adjustable arm located within the envelope having an engaging surface located at one end thereof; a plurality of mating elements located on the interior side of the envelope for being engaged by the engaging surface on the arm to select a detent or hold in force; a detent surface on the exterior of the body; and a formed stop-in member on one of the other telescoping members for operatively engaging the detent surface whereby adjustment of the arm allows selection of the desired amount of detent or hold in force.

A telescopic drawer slide with an adjustable detent comprising: a first drawer slide having a longitudinal length with a web and arcuate arms along longitudinal margins of the web; a second drawer slide slidably coupled to the first drawer slide, the second drawer slide also having a longitudinal length with a web and arcuate arms along the longitudinal margins of the web, the second drawer slide being nested within the arcuate arms of the first drawer slide; and a detent mechanism coupled to the web of the second drawer slide, the detent mechanism having a body defining a band with an arm maintained in the band, the relative position of the arm with respect to the longitudinal length of the second drawer slide.

The telescopic drawer slide with an adjustable detent of claim 2 wherein the band includes a socket for receiving a first end of the arm.

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