DE29717662U1 - Positioning device of the storage cap of the umbrella - Google Patents

Description

Umbrella spoke cap positioning device

The invention relates to a positioning device for the spoke cap, in particular a positioning device which enables a secure connection and prevents the spoke cap from coming off.

According to the current technology, the outer end of the spokes protrudes from the edge of the fabric to connect with the fabric by sewing. Since the spokes are made of metal, their end is very sharp and not good-looking. This easily leads to injury to the user or others. Therefore, spoke caps were developed that close the outer end of the spoke to prevent injury. The spoke caps improve the safety and appearance of the umbrella.

Figures 1 and 2 show the schematic representations of the conventional spoke caps. The spoke cap (1) has an axial hole (11) at the inner end into which the outer end (21) of the spoke (2) engages, and in the middle section a through transverse hole for connection to the fabric by sewing (12). This spoke cap (1) is attracted by the tension of the fabric (3) in order to position it at the outer end (21) of the spoke (2). Since the spoke (2) and the fabric (3) can easily be deformed by strong wind, the hole (11) of the spoke cap (1) also easily detaches from the spoke (2). In the case of a minor fall, the spoke cap only has to be put back on the spoke (2); in the worst case, the fabric (3) is pulled back and even disintegrates. Therefore, safety cannot be guaranteed with the conventional spoke caps. In addition, conventional spoke caps have a short lifespan.

The invention is based on the object of creating a positioning device for the spoke cap of the umbrella, in which a secure connection, the prevention of the spoke cap from detaching and the extension of the service life are further achieved.

In the following, the design, features and functioning of the invention will be described in detail again using the attached drawings. They show:

Figure 1 An exploded view of the conventional spoke cap and

Spoke,
Figure 2 shows an average view of the conventional spoke cap and

Spoke in assembled state,
Figure 3 is a schematic representation of the spoke cap of the preferred

Embodiment of the invention,
Figure 4 is a cross-sectional view of the spoke cap of the preferred

Embodiment of the invention,
Figure 5 is an exploded view of the spoke cap and spoke of the

preferred embodiment of the invention,
Figure 6 is a cross-sectional view of the spoke cap and n-shaped spoke of the preferred embodiment of the invention in

assembled condition,
Figure 7 is a cross-sectional view of the spoke cap and full spoke of the preferred embodiment of the invention in

assembled condition,
Figure 8 an exploded view of the spoke cap and spoke with sleeve

of another preferred embodiment of the invention,
Figure 9 is a cross-sectional view of the spoke cap and spoke with sleeve of another preferred embodiment of the invention in the assembled state,

Figure 10 shows another executable form of the spoke cap according to the invention, Figure 11 shows another executable form of the spoke cap according to the invention, Figure 12 shows a schematic representation of another form of the

spoke cap according to the invention,
Figure 13 is a representation of the completed state of the spoke cap of Figure 1.

Let us first look at Figure 3-7: The preferred embodiment according to the invention comprises the spoke (2A) or 2(B) which stretches the material (3) and the spoke cap (IA) which is arranged at the outer end of the spoke, wherein an axial bore (11) is provided at the inner end of the spoke cap (IA) and a continuous transverse hole (12) is provided in the middle section, characterized in that

that at the connection point with the bore (11) of the spoke cap, the outer end of the spoke (2A) or (2B) has a through-hole (22a) or a positioning recess (22b), that a z-shaped cavity (13) is formed above the bore (11) during injection molding, which

an axial spring element (14), on the inside of which an inwardly projecting stop (141) is provided at a location corresponding to the positioning hole (22a) or the positioning recess (22b), that the wall of the bore opposite the stop (141) has a longitudinal hole (15), and that the shape of the bore (11) is adapted to the shape of the spoke (2A) or (2B) so that after the connection of the bore and the spoke no rotation is permitted and precise positioning is ensured in order to reliably connect the spoke cap to the spoke.

The above spoke can be formed by stamping as an RV-shaped spoke (2A) or as a solid spoke (2B). In the latter case, a longitudinal hole (221) is provided above the positioning recess (22b).

Figures 6 and 7 show the connection of the spoke cap (IA) and the spoke (2A) and the connection of the spoke cap (IA) and the spoke (2B). Since three sides of the axial spring element (14) of the spoke cap (IA) are enclosed by the r-shaped cavity (13), a spring effect can be achieved. When the outer end (21) of the spoke engages the spoke cap, the stopper (141) slides into the positioning hole (22a) or the positioning recess (22b) by its bevel edge (142) and abuts against the positioning hole (22a) or the positioning recess (22b) by the vertical edge (143), so that the detachment of the spoke cap (IA) is prevented, thereby achieving practical use and safety.

To separate the fabric or the spoke cap (IA), a simple tool (4) is used which pushes inwards through the longitudinal hole (15) under the bore (11) to lift the axial spring element (14) upwards so that the stop (141) leaves the positioning hole (22a) or the positioning recess (22b) and the spoke cap (IA) can be removed, thus achieving secure positioning and quick and easy removal.

Alternatively, the above-mentioned spoke cap (IA) can be used according to the invention with the conventional spoke (2), whereby a further embodiment is formed. As Figure 8 shows, the outer end of the conventional spoke (2) is designed as a sleeve (23) during stationary pressing (the spoke (2) and spoke cap (IB) shown in Figure 8 are inverted in order to

to create clarity.) whereby at the inner end of the spoke cap (IB) an axial bore (11) is also provided and in the middle section a continuous transverse hole (12) is also provided, characterized

that a ^-shaped cavity (13) is formed under the bore (11) during injection molding, which has an axial spring element (14), on the inside (24) of which an inwardly projecting stop (141) is provided at a location corresponding to the interior of the sleeve (23) at the outer end of the spoke, that after the connection of the spoke cap (IB) and the outer end of the spoke (2), the stop (141) is supported against the inner wall (231) of the sleeve (23), and that the shape of the bore (11) is adapted to the shape of the spoke (2).

Due to the above-mentioned features, the spoke cap (IB) is reliably connected to the conventional spoke (2), so that the prevention of detachment is strengthened.

Figure 9 shows a schematic representation of the spoke cap (IB) in the assembled state. The difference of the spoke cap (IB) from the spoke cap (IA) is that the axial spring element (14) of the spoke cap (IB) is arranged under the bore (11) to match the shape of the sleeve (23) of the conventional spoke (2) so that the vertical edge (143) of the stop (141) can bear against the inner wall (231) of the sleeve. Since the top of the spoke cap (IB) is covered by the fabric (3), a tool (not shown) pulls the axial spring element (14) downwards through the lower cavity (13) during removal to release the stop from the sleeve (23) of the spoke so that the spoke cap (IB) can be removed.

Since the spoke cap (IA) or (IB) according to the invention encloses the outer end of the spoke by means of an axial spring element (14) with the stop (141) and the shape of the bore (11) is adapted to the shape of the spoke, precise positioning is achieved and no rotation is permitted. Even in strong winds, the spoke cap cannot come off, so that injury to the user or other people can be prevented and the service life is extended.

Of course, the outer end of the spoke cap can also be made as form (a)

or (b) in Figures 10 and 11 to conform to the shape of the screen.

In Fig. 12, the outer end of the spoke cap (Ic) is formed as a flange (16) covered by the fastening end (31) of the cloth (3), so that the spoke (2) does not protrude from the fastening end (31) of the cloth (3) and a smooth arc is formed. The assembled state of this embodiment is shown in Fig. 13, wherein a smooth arc is formed since each fastening end (31) of the cloth is clamped by the flange (16) of the spoke cap, so that the prevention of injury is ensured. The positioning system of the spoke cap (Ic) and the spoke (2) is identical to the above example, so a description is not required. Due to the above facts, the invention further realizes the easy assembly and the difficult detachment.

Claims (2)

1. A positioning device for the spoke cap of the umbrella, which consists of the spoke which stretches the fabric and the spoke cap which is arranged at the outer end of the spoke, an axial bore being provided at the inner end of the spoke cap and a through transverse hole being provided in the central portion, characterized in that an axial spring element is arranged on the circumference of the bore, on the inner side of which an inwardly projecting stop is provided at a location corresponding to the positioning hole, the positioning recess or the inner wall of the sleeve of the spoke, and that the shape of the bore is adapted to the shape of the spoke so that after the connection of the bore and the spoke, no rotation is allowed and precise positioning is ensured in order to reliably connect the spoke cap to the spoke, thereby further realizing safe use and extending the service life. 2. Positioning device of the spoke cap of the umbrella according to claim 1, characterized in that the outer end of the spoke cap is formed as a flange which is covered by the attachment end of the fabric so that the spoke does not protrude from the attachment end of the fabric and a smooth arc is formed.