US1856385A

US1856385A - Telescopically collapsible umbrella

Info

Publication number: US1856385A
Application number: US328410A
Authority: US
Inventors: Haupt Hans
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-01-03
Filing date: 1928-12-26
Publication date: 1932-05-03
Anticipated expiration: 1949-05-03
Also published as: FR666530A

Description

May 3, 1932. H. HAUPT TELESCOPICALLY COLLAPSIBLE UMBRELLA Filed Dec. 26, 1928 Patented May 3, 1932 UNITED STATES PATENT OFFICE runs mom, or BERLIN, enmumr mnnscorrcanmr conmsnarn UMBRELLA Application med December 26, 1928, Serial No. 828,410, and in Germany January 3, 1828.

My invention relates to folding umbrellas having the frame arms or ribs connected to the bracing rods or stretchers by means 'of pivot pins which are slidable 'on the upper 6 parts of the ribs and are secured in operative position to the said ribs by means of locking devices against which the bracin rods are adapted to bear and disengage t e locking devices on the bracing rods being moved so as to lie alongside the ribs.

The main feature of the present invention consists in this that the locking members comprise locking pawls rotatable on the pivot pins with their locking noses engaging in the inside of the U-section frame arms,

said locking pawls having spring pressureexerting members acting on them so as to urge the said noses towards the frame arms, so that on the pawls being released from their locking engagement with the frame arms the said noses will be able to travel in the inside of the U-sectionframe arms and will thereby not project from the frame arms and damage the covering of the umbrella.

I will now describe my invention more in detail in connection with the embodiment thereof illustrated somewhat diagrammatically on the accompanying drawings, it being intended and understood that the inventionis illustrated by, but not limited to, the embodiment thereof so illustrated and described. b

In the accompanying drawings forming a part of this specification and showing for purposes of exemplification, a preferred form and manner in which the invention may be embodied and practiced but without limiting the same to such illustrative instance:

Figure 1 is a view in longitudinal section of an umbrella constructed in accordance with the present invention, the cloth covering being indicated by a single line and one of the several arms or rays of the frame only being shown for clearness sake; Figure 2is a view similar to Figure 1, but of enlarged scale and showing the umbrella stick in telescoped condition and the frame arm in fully collapsed condition, While the lowermost tubular member of the stick forming the handle is illustrated in section; Figure 3 is a sectional view, on an enlarged scale, of certain parts shown 1n Figure 1, while the umbrella is closed; Figure 4 is a sectional view, on an enlarged scale, of the same parts, when the umbrella is open; Figure 5 is a view in longitudlnal section and on an enlarged scale of the two meeting and interconnected ends of the two channeled members oonstitutin a frame arm or rib with the bracing mem er or stay rod .pivotally attached thereto; and F1gure 6 1s a cross-section of the upper or inner channeled member of a frame arm.

In the embodiment shown in the drawings the umbrella stick is substantially composed of three

constituent parts

1, 2 and 3 adapted to be telescopicall pushed together as usual 1n umbrellas 0 this type, a tubular handle 4 forming, in addition thereto, a fourth part or member of the stick. When the stick is pulled out, as shown in Figure 1, the handle 4 will be locked by a spring detent 5 which is secured, together with a guiding dlsk or ring 6, to the lower end of the intermediate stick member 2. The lower part 3 of the stick is firmly connected with the bottom end of the handle 4. The

parts

1 and 2 of the stick adapted to be telescopically pulled out, are interlocked, when in pulled out condition, by a spring-controlled lockin pawl 7 which is pivotally attached to and within the upper end of the tubular stick member 2 and adapted to be withdrawn from looking engagement with the part 1, by the upper end 8 of the part 3 engaging over the depending wedge-shaped nose 9 of the pawl 7 so as to turn the latter against the action of the spring thereof, whereupon the end 8 of the part 3 engages the face 10 of the pawl ere the part 2 reaches its fully telescoped position on the part 3.

The arms of the umbrella frame consist each of two channeled

bars

12 and 13, the upper end of the bar 12 being hinged to a ring 11 of the part 1 in the usual manner. The two bars of the arm are so interconnected as to allow of telescopic movement, a sleeve or ring 14 being firmly connected with the lower end of the bar 12 and a U-shaped member 15 being disposed on the upper end of the bar 13 of the arm for that purpose. The member 15 is not fixed to the bar 13, but surrounds a pivot pin 16 connected with the latter, and affords a means for the attachment of. the woven material or covering 17. The upper end of the bracing rod 18 is pivoted on the pin 16 and the lower end thereof pivotally connected with the sliding sleeve 19, as usual. A spring split sleeve 20 is provided on the bar 12 o the stick for locking the sleeve 19, when the umbrella is spread out by moving the sleeve 19 on the stick over and beyond the sleeve 20, as usual. When the umbrella is in fully collapsed and telesooped condition, the sleeve 19 will be locked by two spring-controlled pawls 21 and 22 pivotally connected with lugs provided on the guiding disk 6.

According to the present invention the arm member or bar 13 is locked or secured in its outward position, shown in Figure 1, by a pawl 23 pivotally mounted on the pin 16 and having a nose 25 adapted to catch, under the pressure of a spring 24, into an aperture 26 rovided in the back or web of the channel bar or member 12, as will be readily understood on inspection of Figure 5, so that the

bars

12 and 13 will constitute a rigid unit when the umbrella is spread out or opened, whereas when the umbrella is closed and fully collapsed, so that the bracing rods 18 lie approximately parallel to the members 13, as indicated in dash lines in Figure 5, the rod 18 will engage the tail 27 of the pawl 23 with the result that the nose 25 of the latter is withdrawn from the aperture 26 and the arm member or bar 13 released thereby.

The tail 27 of the locking pawl 23 has at its end a hole through which the adjacent end of the spring 24 is passed so as to secure the said end of the spring.

The herein described construction is of particular advantage inasmuch as in the releasing action, the movability of the pawl 23 about the axis of rotation or pin 16 can be utilized to a high degree, since the nose 25 of the pawl is adapted to move in the cavity of the channeled bar 12 and thereforeprevented from projecting too far through the aperture 26 and damaging the covering 17. Further the comparatively extensive rotary capability of the pawl 23 operating under spring action against the bracing rod 18, involves the advantage of resiliently holding the arm member or bar 13 widely apart from the rod 18 during the manipulation of closing the umbrella, as shown in Figure 1, so that the hollow handle 4 can be readily shifted on to the stick while engaging between the several rods 18 and

arms

12, 13, without hampering. Furthermore, it is feasible and advisable to adjust the pawl 23, owing to the extensive range of movability thereof, in a manner that the nose 25 of the pawl will be fully retracted and disengaged from the aperture 26 and consequently the

arm members

12 and 13 unlocked, when the open mouth of the handle 4 commences to grip and enclose the lower ends of the bracin rods 18 and the members 13 are only slightly approached thereby towards the rods 18.

Though I have described with great particularity of detail a certain speci c embodiment of my invention, yet various modifications in detail and in the arrangement and combination of the parts shown and described may be made by those skilled in the art without departure from the invention What I claim is:

1. In an umbrella of the class described having a handle and a covering therefor, an upper U-section frame arm pivoted to the said handle, a lower U-section frame arm slidably mounted in the upper frame arm, a bracing rod pivoted to the handle, a pivot pin connecting the bracing rod and the lower frame arm together, a locking pawl revolubly mounted on the pivot pin, a nose portion on the pawl for locking the frame arms in extended position, of sufficient length to remain within the interior cross-sectional area of the frame arms, for preventing the tearing of the umbrella covering, while the frame arms are reciprocating upon each other, automatic means for normally pressing the pawl into locked engagement, and means for releasing the automatic pressing means by the action of the lower frame and bracing rod when the umbrella is placed in a closed position.

2. In a device of the class described havin a covering thereon, an upper frame arm 0 U-shaped cross-section, a lower frame arm of similar cross-section adapted to reciprocate within the upper frame arm, a bracing rod in association with the frame arms, a pivot pin connecting the bracing rod and the lower frame arm together, a locking pawl revolubly mounted on the pivot pin, a nose portion on the pawl for locking the frame arms and bracing rod in locked position, and of. sufficient length to continuously operate within the interior cross-sectional limits of the U- shaped frame arms, and automatic means for normally pressing the pawl into locked position, and means for controlling and releasing the said automatic pressing means by the action of the bracing rod and frame arms, when the umbrella is placed in a closed position.

3. In an umbrella of the character described having a handle therefor, the combination with a U-section frame arm pivotally connected to said handle, a bracing rod pivotally connected at its lower end to said handle, a pivot pin slidable on the upper part of said frame and connected to the upper end of the bracing rod for connecting the frame arm and bracing rod together; of locking means for securing said pivot pin in operative position, comprising a locking pawl serving for locking the pivot pin and rotatable about the latter, said locking pawl having a nose adapted, on being disengaged, to

lie inside the interior of the U-section frame arm and to remain in the interior during the sliding of the pivot, a spring pressing the locking nose into locking position, the said pawl being actuated by the bracing rod in the closing of the umbrellato release the pivot pin for sliding movement.

4. An umbrella as claimed in claim 3, in which the nose of the locking pawl in the locking position extends from the interior bottom surface of the U-section frame arm to the surface of the upper face of said frame arm.

HANS HAUPT.