US1798264A - Door holder - Google Patents

Description

March 31, 1931. w LUETERS 1,798,264

DOOR HOLDER Filed April 2, 1928 INVENTOR {ff Lmiins' Aa'ToRNEY Patented Mar. 31, 1931 PATENT OFFICE WILLIAM G. LUETERS, OF CLEVELAND, OHIO noon HOLDER Application filed 'April' 2,

My invention relates to devices for holding doors in one or more positions.

The object of my invention is to provide a simple, inexpensive, easily installable and easily operable device which holds a door positively in one or more positions, which is easily released to permit the door to be moved from its position, and in which a certain momentum is created when released to start 30 movement of the door or of one of members of the device at least sufficiently far to automatically keep the lock mechanism of the device out of locking engagement so that an operator need not retain a hold on the releasing means when he moves to take'hold of the door to move the same.

In door holders, of the prior art'particularly in those which are attached close to the hinged edge of a door, it is quite inconvenient to release the door with one hand and reach for the free edge of the door with the other hand to move the same. My invention provides a means for releasing the lock and to automatically keep it released for the time being so that an operator can leave the lock or 'release means and walk to the free edge of the door to take hold of the same to move it without paying any further attention to the lock means.

In order to illustrate my inventon, but not to limit the same, I have selected a certain door holder structure and have shown the same. in the accompanying drawing in which I a Fig. 1 is a perspective view of a portion of a door framing with a door hinged thereon and a door holder structure of my invention attached thereto. 7

Fig. 2 is a perspective view of the door 40 holder device of Fig. 1.

Fig. 3 is a longitudinal section of Fig. 2 showing interior relations of parts.

Fig. 4 is a side view of a modified support member for the device shown in Fig. 2.

'Fig. 5 is a perspective view of akey operated device to release the lock mechanism of Fig. 2.

Similar reference charactersrefer to similar parts throughout the views.

- The device shown in the accompanying 1928. Serial No. 266,702.

drawing comprises, principally, the fixable member A, the rotatory member B, the slidable member C, the latch member D, and the latch release member E.

The member A, in the present instance a commercial bolt, hasthe body portion 10 extendable through the door framing member 11, the head 12 to abut one side of the member 11, the nut 13 to abut another side of the fmember 11, and the externally threaded end 14 below the nut 18. One end of the holder device is supportable on the door framing by means of the member A.

The member B, in the present instance a pieceof commercial round bar stock, has the internally threaded longitudinally eXtending opening 15 in one end thereof adapted to the end 1 1, the cavity 16 extending longitudinally inwardly of the opening 15, the guide hole 17 extending longitudinally from the cavity 16 through the other end of the member B, and the opening 18 extending transversely of the member B and in a position in termediate the ends of the cavity 16.

The member O, in the present instance a pieceof commercial round bar stock, is of a 'diametrical size freely slidable through the opening 18 and of sufficient length to permit the door 19 to be opened to any desired degree without permitting the end of the member C to leave the opening 18, has, in

- the present instance, the slot 20 to hold the door in a closed position, and the slot 21 to hold the door in one open position.

The bracket 22, U shaped in the present instance, has the holes 23 for screws to fasten the same to the door 19, and the holes 25 through the legs thereof for the pivot pin 26, a commercial cotter pin in the present instance, which also eXtends through the end 27 of the member C which extends into the bracket 22 between the legs thereof.

A power means to initially move the door is shown as comprising the spring 28, in the present instance a piece of commercial spring stock, telescopes over the end 27 with one longitudinal end thereof adapted for abutment on the pin 26 and the other longitudinal end thereof adapted for adbutment on themember B when the door is closed? The spring 29, in the present instance a duplicate of the spring 28, telescopes over the end 30 of the member C with one longitudinal end thereof adapted for abutment on the pin 31, a duplicate of the pin 26 in the present instance, and the other longitudinal end thereof adapted for abutment on the member B when the door is open. Both of the springs are unconfined positionally except when the door is closed or is open and are of suflicient length so that they are compressed to a certain extent between the corresponding pins and the member B when the door is closed or opened.

The latch member D has the head 32 extending into and movable longitudinally in the cavity 16, the stem 33 extending through and slidable in the guide hole 17, the nut 34 threaded onto the stem, and the ring 35 suspended in the end of the stem. The spring 36 telescopes over the stem 33 with one longitudinalend thereof abutting the end Wall 37 of the cavity 16 and the other longitudinal end thereof abutting the head 32.

The element E '(Fig. 5) comprises the guide member 38 fastenable to the door 19 by means of screws or bolts through the holes 39 therein and the member 40 slidable in the guide member 38 and having the ear 41 slotted to extend the end thereof over the stem 33 above the nut 34 thereon. The key hole 42 is provided in the member 38 and a suitable hole 43 is provided in the member 40 so that a key can move the member 40 downwardly as is common in lock structure and thereby abut the nut 34 and move the lock member downwardly and thereby release the head 32 from the slot.

This lock and key arrangement, associated with the latch mechanism, prevents unauthorized opening of the door, and at the same time holds the door in either open or closed position by a one key operation.

Vhile the door is being moved, the member C slides through the member B and, due to the hinged condition of the door and the consequent arcuate movement thereof, the positionally fixed member B rotates on the member A and does so due to the space between the lower end of the nut 13 and the upper end of the member B and the threaded engagement between these members which permits the member B to rotate on the member A without creating any binding between the members B and C nor detrimentally affecting the holding of the member B to the member A.

When the bolt A shown in Figs. 2 and 3 cannot be used, the same can be substituted by the member shown in Fig. 4 in which the body portion 10 is provided with a wood screw thread so that the member. A can be screwed into wood or other material or can be cemented into concrete or other material.

Then the member A is fixed to the door framing and the bracket 22 is fixed to the door, the member G extends transversely through and is guided in and slides through the member B when the door is moved. Vhile the door is being closed, and a little before it is wholly closed, the spring 28 abuts the pin 26 and the member B and is compressed to a certain extent as the'door is fully closed and thereby stores power in the spring. When the door is fully closed, the slot 20 is in alignment with the head 32 and the spring 36 moves the latch member D so that the head 32 enters the slot 20 and thereby prevents the door from being moved out of position. When the latch member D is moved downwardly, against the spring 36, by means of the ring 35 or the element E, the head 32 leaves the slot 20 and the power then stored in compressed spring 28 tends to relieve the tension thereof and thereby initially moves the door and moves the member C longitudinally sufficiently far to dis-align the head 32 and the slot 20 so that the head 32 abuts the unslotted portion of the member C and thereby permits the member C to slide or move through the member B freely and without interference and permits the door to be moved further without manipulating or holding the element E. The opening of the door is thus started by means of the spring 28 compressed by a previous movement of the door.

When the door is fully opened, the spring 29 is compressed in the same manner that the spring 28 was compressed and the head 32 engages the slot 21 in the same manner as above described; Upon release of the latch element as described above, the spring 29 starts the closing of the door and dis-aligns the head 32 and-the slot 21 so that the door can 73 be moved further without paying any at tention to the lock element and automatically aligns the head 32 and the slot 20 and compresses the spring 28 when the door is fully closed so that the same is held in the closed position until the latch-element is again released.

The opposite sides of the slots 20 and 21 are square and the head 32 is straight and there are no taper or angular faces so that a pres- 1 sure on the door or a pressure from the springs will not force the head 32 out of the slots unless the head 32 is first released and thereby positively retains the bar and the door against movement while the head 32 is in one of the slots.

The mechanism shown and described automatically holds the door positively in either an open or aclosed position and permits the door to be moved from either one of these positions by merely giving the lock element one pull.

The springs do DOts act onthe doorwhile the same is being moved but they do cushion the movement of the door when the same nears either the closing or open position thereof and by this cushioning are conpressed and thereby store up power which is used to start a movement of the door in the next movement thereof.

Changes can be made in the structure as Well as in the arrangement of the elements shown and described within the scope of the appended claims; therefore, without limiting myself to the precise structure and arrangement of elements as shown and described,

I claim 1. In combination, a door frame, a door hinged to said frame, and a latch mechanism including a bracket on said frame, a bar hinged to said door and extending through said bracket and having transverse slots therein, each of said slots having opposite square shoulders, a latch member extendible into said slots to engage said square shoulders, and a power means adapted to initially move said bar when said latch member is moved out of said slots.

2. In combination, a door frame, a door hinged to said frame, and a latch mechanism including a bracket on said frame, a bar hinged to said door and extending through said bracket and having transverse slots therein, each of said slots having opposite square shoulders, a latch member extendible into said slots to engage said square shoulders, and springs adapted to be compressed by movement of said door to provide power to initially move said door when said latch member is released from said slots.

3. In combination, a door and a framing therefor and a door holder having a member positionally fixed to said framing and having a rotatable part, a member hinged to said door and slidable through said rotatable part and guided thereby and having a transverse slot therein, a movable pin in said rotatable part and adapted to contact said slidable member and to positionally engage the walls of said slot therein, a spring to move said pin against said slidable member and into said slot when said slot is opposite said pin, manually operable means to move said pin out of said slot, and a spring between said rotatable part and an abutment on said slidable member to start the movement of said slidable member through said rotatable part when said pin is moved out of said slot against the action of said spring which moves said pin.

In testimony of the foregoing, I aflix my signature.

WILLIAM G. LUETERS.

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