JPS5854217Y2 - Shutter lever grip mechanism - Google Patents

Description

[Detailed Description of the Invention] The shutter lever of conventional power spreaders is relatively short, which has the disadvantage that it is difficult to operate the shutter lever when carrying the machine on one's back.

Naturally, if the shutter lever is lengthened, it will be easier to operate, but if the shutter lever is extended to make it easier to operate, the protruding part of the lever will become excessive, which is not only inconvenient when transporting and storing, but may also require packaging. This requires a large box, which is uneconomical, and increases the risk of breaking the shutter lever.

For the reasons mentioned above, the current situation has been to put up with the inconvenience by using a shutter lever that does not protrude from the camera, even though it is inconvenient to operate.

Here, this invention forms a neck near the free end of the shutter lever through which the shutter lever can be passed through to the extreme extent of the through hole of a cylindrical grip having a through hole therein over almost the entire length, A notch reaching the through hole is provided near the opening through which the shutter is passed, and a stopper piece is engaged at a position where the notch and the neck match to prevent displacement of the relationship between the grip and the shutter lever. This mechanism attempts to eliminate the defects of the conventional system, and when not in use, the entire length of the shutter lever is shortened to eliminate its protrusion from the machine, and when the power spreader is in use, the shutter lever is closed. The lever is extended by approximately the length of the grip, making it easier for the operator to operate the lever by hand.

Next, an embodiment of this invention shown in the drawings will be described.

First, in the grip 1 shown in FIGS. 1 to 3, a cylindrical grip 1 made of hard synthetic resin has a through hole 2 formed over almost its entire length, and a through hole 2 is formed near the opening 3 of the through hole 2. A notch 4 reaching the through hole 2 is formed.

Note that reference numeral 5 denotes a plurality of long grooves formed on the outer surface of the grip 1 in its length direction to prevent slipping.

A shutter lever 6, a portion of which is shown in FIG. 4, is formed with a neck 7 near its free end, the outer diameter of which allows it to pass through said through hole 2 without undue play but smoothly. When the end of the shack lever 6 is inserted as far as possible into the through hole 2 of the grip 1, the grip 1 is made to have dimensions such that it does not protrude from the main body of the power spreader (not shown). Consider the overall configuration.

The stopper piece 8 shown in FIGS. 5 and 6 is made of elastic metal and has a substantially U-shape, and is provided with engaging protrusions 9 that protrude inward at diametrically opposed parts. .

When storing or transporting each of the above-mentioned components, the shutter lever 6 is inserted as far as possible into the hole 1'JL2 of grip 1 as shown in Fig. 7 to shorten its length, and when used, the shutter lever 6 is
Pull out the shutter lever 6 from above, and with its neck 7 aligned with the notch 4 of the grip 1, pull out the stopper piece 8.
When the grip 1 is engaged with the notch 4, the engagement protrusion 9 of the stopper piece 8 enters into the neck 7, resulting in the situation shown in FIG.
Since displacement of the shutter lever 6 is prevented, the shutter lever is operated using the grip mechanism which has been extended and is now easier to operate.

[Brief explanation of drawings]

Fig. 1 is a side view showing half of the grip constituting a part of the mechanism of this invention in cross section and half showing the outside; Figs. 2 and 3 are taken along lines II-II and III-III in Fig. 1; Figure 4 is a side view of the main parts of the shack lever, Figure 5 is a cross-sectional view along the
6 are a side view and a plan view of the stopper piece, and FIGS. 7 and 8 are sectional views showing two states of the mechanism of this invention. In the diagram, 1...grip, 2...
Through hole, 3...opening, 4...notch,
6...Shutter lever, 7...Neck,
8...This is a stopper piece.

Claims (1)

[Scope of utility model registration request] a cylindrical grip having a through hole therein over substantially its entire length, the grip forming a neck near the free end of the shutter lever through which the shutter lever can be passed to the extreme extent of said through hole; A gripping mechanism for a shack lever, which is provided with a notch that reaches the through hole, and a stopper piece is engaged at a position where the notch and the neck match to prevent displacement of the relationship between the grip and the shutter lever. .