JP2002106522A - Extension cylinder clamp device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive to clamp or unclamp all extension cylinders at the same time with a couple of longitudinal presser members engaging with one lever. SOLUTION: The extension cylinder clamp device is installed on the base plate 22 offered on each projector 2 and provided with a clamp means 3 having a couple of the longitudinal presser foot members 8 and 8a, and is made so that it can clamp or unclamp many projectors 2 and extension cylinders 4 simultaneously with one operation by turning one lever 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extension cylinder clamping device, and more particularly to a novel improvement for simultaneously clamping / unclamping a plurality of extension cylinders with a pair of longitudinal holding members.

[0002]

2. Description of the Related Art An extension cylinder clamping device of this type, which has been conventionally used, has a configuration shown in FIGS. That is, the box-shaped main body 1 shown in FIGS. 5 and 6 is provided with a plurality of (six in this embodiment, as shown in FIG. 7) launch cylinders 2, each of which is shown in FIG. As shown in the drawing, three in the horizontal direction and two in the vertical direction orthogonal to the horizontal direction.

Each of the firing cylinders 2 is configured so that an extension cylinder 4 can be clamped / unclamped via a clamp means 3, and a first provided on each of the firing cylinders 2.
A second flange 7 is provided on the flange 5 via a spacing pin 6.
Are disposed opposite to each other.

A firing cylinder flange 2a formed at the end of each of the firing cylinders 2 is opposed to and joined to an extension cylinder flange 4a formed at the base end of the firing cylinder 4, and each of the flanges 2a. , 4a are forcibly pressed and held by a plurality of pressing members 8 located on the outer periphery and having a concave cross section. Each of the pressing members 8 is provided on the outer periphery of each of the pressing members 8 and is provided with an Ω-shaped steel belt 9 to which each of the pressing members 8 is attached. A handle 11 is rotatably provided on the second flange 7 via a pin 10 as shown by a solid line and a dotted line in FIG. Is connected to one end. The handle 1
By the rotation of 1, the steel belt 9 is tightened at the position of the solid line, and the steel belt 9 is loosened at the position of the dotted line. The clamping means 3
Is constituted by the flanges 5 and 7, the holding member 8, the steel belt 9, the handle 11 and the link 12.

Accordingly, in the above-described configuration, first, the required extension cylinder 4 is disposed on each of the firing cylinders 2 while the handle 11 is rotated to the position shown by the dotted line, and
When the handle 11 is rotated from the dotted line to the position indicated by the solid line in a state where the a and the 4a are joined, one end of the steel belt 9 is pulled through the link 12 and the diameter of the steel belt 9 is reduced, The flanges 2a, 4a are firmly joined by the holding members 8, and the extension cylinder 4
Are integrally connected to the launch cylinder 2. Also, by returning the handle 11 from the solid line to the position shown by the dotted line again,
The tightening of the steel belt 9 is released, and the extension cylinder 4 can be detached from the firing cylinder 2. By the above-described operation, the clamping / unclamping operation of the extension cylinder 4 with respect to the firing cylinder 2 by the clamping means 3 can be achieved.

[0006]

The conventional extension cylinder clamping device has the following problems because it is configured as described above. That is, since the above-described clamp means is provided for each launch cylinder, the handle must be operated each time the extension cylinder is connected, and the number of times (6 to 12) of the number of extension cylinders is required. The process was complicated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and more particularly, an extension tube in which a plurality of extension tubes are simultaneously clamped / unclamped by a pair of longitudinal holding members. It is an object to provide a clamping device.

[0008]

According to the present invention, there is provided an extension tube clamping apparatus, in which a plurality of launching tubes are arranged side by side at intervals and an extending tube is connected to each of the launching tubes via clamping means. In the extension cylinder clamping device as described above, the clamping means includes first and second longitudinal pressing members disposed to face each other so as to simultaneously clamp the extension cylinders,
A base plate fixed to the launching cylinder side, a lever rotatably supported by the base plate, and a first provided on the base plate connected to both ends of the lever via first and second shaft supports. A first and a second connecting rod held linearly by a second guide member, a first connecting pin for pivotally supporting the first longitudinal pressing member and the first connecting rod, and a second longitudinal pin. A second connecting pin for pivotally supporting the pressing member and the second connecting rod; the connecting pins are arranged at different positions along the longitudinal direction of the longitudinal pressing members; The extension / cylinder is clamped / unclamped via each of the longitudinal holding members by movement, and a plurality of the launch cylinders are arranged along the longitudinal direction of each of the connecting rods. Configuration And, wherein each longitudinal pressing member, together with the cross section form a concave portion corresponding to the respective extension tube is configured to have an arcuate portion formed in an arc shape along the outer circumference of the extension cylinder.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an extension tube clamping device according to the present invention. The same or equivalent parts as those in the conventional example will be described using the same reference numerals. First, the box-shaped main body 1 shown in FIGS. 3 and 4 is provided with a plurality of (six in this embodiment, six as shown in FIG. 1) launch tubes 2, each of which is shown in FIG. As shown in the drawing, three in the horizontal direction and two in the vertical direction orthogonal to the horizontal direction.

Each of the firing cylinders 2 is configured so that an extension cylinder 4 can be clamped / unclamped through a clamp means 3, and the clamp means 3 is, as shown in FIGS. It is configured. That is, the base plate 20 is disposed on the side of the firing cylinder 2 so as to have a surface direction orthogonal to the axial direction of the firing cylinder 2 while being integrally held by all the firing cylinders 2. A pair of semi-cylindrical guide members 21 are provided at an upper end and a lower end of the pair 20 at intervals.

Each of the guide members 21 is disposed so as to be located between each of the firing cylinders 2, and a lever shaft support portion 22 is provided at a central position of the base plate 20 in the horizontal direction in FIG. A long lever 11 is provided on the lever shaft support portion 22 so as to be reciprocally rotatable in the direction of arrow A.

At the positions of both ends of the lever 11, first,
The first and second connecting rods 25 via the second shaft support portions 23 and 24,
26 are operably connected, and the respective connecting rods 25 and 26 penetrate through the four guide members 21 and are held so as to be linearly movable in the vertical direction.
5, 26 are configured to move up and down in different directions.

The firing tube flange 2a formed at the end of each of the firing tubes 2 is opposed to and joined to the extension tube flange 4a formed at the base end of the firing tube 4. 4, 4a are forcibly pressed and held by first and second longitudinal pressing members 8, 8a which are located on the outer periphery and have a concave cross section, as shown in FIG.

As shown in FIG. 1, each of the longitudinal pressing members 8, 8a holds a plurality of (three in this embodiment) firing cylinders 2 and extension cylinders 4 arranged side by side in the vertical direction. The first connecting rod 25 and the first connecting rod 25
The longitudinal pressing member 8 is operatively connected via a first connecting pin 30, and the second connecting rod 26 and the second longitudinal pressing member 8 a are operatively connected via a second connecting pin 31. I have. Each connecting pin 30, 31 is shown in FIG.
On a plane viewed from above, the firing cylinder 2 and the extension cylinder 4 are located in a staggered manner with the firing cylinder 2 and the extension cylinder 4 interposed therebetween, and are provided at different positions along the longitudinal direction of the longitudinal holding members 8 and 8a. ing.

Each of the longitudinal pressing members 8 and 8a has an arc-shaped portion 32 formed in an arc shape along the outer periphery of each of the firing cylinder 2 and the extension cylinder 4 along its longitudinal direction, that is, along each of the flanges 2a and 4a. It is provided in. Therefore, by rotating the lever 11 upward along the arrow A, each first longitudinal pressing member 8 is urged downward and each second
When the longitudinal pressing member 8a is urged upward, the flanges 2a and 4a of the cylinders 2 and 4 are clamped by the longitudinal pressing members 8 and 8a to achieve clamping. , The respective longitudinal pressing members 8 and 8a are opened, and the clamps of the respective flanges 2a and 4a are released to be in an unclamped state. In addition,
The above-mentioned clamping means 3 includes a lever 11, a base plate 20, respective connecting rods 25 and 26, a guide member 21, and respective longitudinal pressing members 8, 8a.

Next, the operation will be described. First, in a state where the lever 11 is pushed down to open the longitudinal holding members 8 and 8a to be unclamped, the extension cylinder flanges 4a of the extension cylinders 4 are joined to the firing cylinder flanges 2a of the firing cylinders 2 respectively. When the lever 11 is pushed upward, the respective longitudinal holding members 8 and 8a are closed to be in a clamped state, and the respective flanges 2a and 4a are clamped and the connection of the respective extension cylinders 4 to the respective firing cylinders 2 is performed once. Is achieved by the operation of In the above-described embodiment, the case of six launch cylinders 2 has been described. However, it is needless to say that the number of launch cylinders may be six or less.

[0017]

The extension cylinder clamping device according to the present invention is configured as described above, so that the following effects can be obtained. That is, each extension cylinder can be simultaneously clamped or unclamped by each of the longitudinal holding members that are interlocked with the vertical rotation of one lever, and a large number of extension cylinders can be clamped / unclamped with only one lever operation. Therefore, work on the ship is greatly facilitated, and work safety can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an extension cylinder clamping device according to the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a plan view of FIG. 1;

FIG. 4 is a right side view of FIG. 1;

FIG. 5 is a partially cutaway plan view showing a conventional extension cylinder clamping device.

FIG. 6 is a bottom view of FIG. 5;

FIG. 7 is a front view of a conventional extension cylinder clamping device.

FIG. 8 is an enlarged front view of a main part of FIG. 7;

FIG. 9 is a cross-sectional view showing a joined / clamped state of each cylinder in the state of FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Launching cylinder 3 Clamping means 4 Extension cylinder 8, 8a 1st, 2nd longitudinal holding member 11 Lever 20 Base plate 23, 24 1st, 2nd shaft support 25, 26 1st, 2nd connecting rod 30, 31st 1, second connecting pin 32 arc-shaped part

Claims (3)

[Claims] 1. A main body (1) in which a plurality of launch cylinders (2) are arranged side by side at intervals and a clamping means for each of the launch cylinders (2).
(3) In the extension cylinder clamping device that connects the extension cylinder (4) via (3), the clamping means (3) is a second clamping apparatus (3) arranged to face each other so as to simultaneously clamp each of the extension cylinders (4). 1, a second longitudinal holding member (8, 8a), a base plate (20) fixed to the launch tube (2) side, and a lever (11) rotatably supported by the base plate (20), First and second levers connected to both ends of the lever (11) via first and second pivots (23, 24) and provided on the base plate (20).
The first, which is movably held by the guide members (21, 21a),
A second connecting rod (25, 26), and a first connecting pin (30) for pivotally supporting the first longitudinal pressing member (8) and the first connecting rod (25).
The second longitudinal holding member (8a) and the second connecting rod (26)
And a second connecting pin (31) for pivotally supporting the first and second connecting pins (30, 31), and the connecting pins (30, 31) are disposed at different positions along the longitudinal direction of the longitudinal pressing members (8, 8a). An extension cylinder clamp characterized in that the rotation of the lever (11) clamps / unclamps the extension cylinder (4) via the longitudinal holding members (8, 8a). apparatus. 2. The launching tube (2) includes the connecting rods (25, 26).
The extension cylinder clamp device according to claim 1, wherein a plurality of the extension cylinder clamp devices are provided along a longitudinal direction of the extension cylinder. 3. Each of the longitudinal pressing members (8, 8a) has a concave cross-sectional shape, and a portion corresponding to each of the extension tubes (4) is formed in an arc along the outer periphery of the extension tube (4). The extension cylinder clamping device according to claim 1 or 2, wherein the extension cylinder clamping device has an arc-shaped portion (32) formed.