KR900008612Y1 - Propelling apparatus of lifeboat - Google Patents

Abstract

No content.

Description

Lifeboat Propulsion

1 is a cross-sectional view showing the overall configuration of the device according to the present invention.

2 is a plan view of the apparatus shown in FIG.

3 is a cross-sectional view taken along line III-III of FIG.

4 is a cross-sectional view taken along line IV-IV.

Figure 5 is an exploded perspective view of the excerpts of the apparatus according to the present invention.

Figure 6 is an exemplary embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: gearbox 2: spindle

3: driven shaft 9: ratchet box

13, 14: rotating wheel 15: bracket

16: idler bevel gear 17: camshaft

18, 19: cam 20, 31: sprocket

21, 22, 23, 24: Ratchet arm 30: Adjustment handle shaft

32: Chain 141, 131: Ratchet

132, 142: Bevel Gear

The present invention relates to a simple and effective lifeboat propulsion device composed of a ratchet mechanism and a plurality of gear elements associated therewith.

There are four types of lifeboat propulsion methods: rowboat type, first and second class motor propulsion type and mechanical propulsion type. Among them, the most commonly adopted propulsion method is rowing type.

However, it is very difficult and dangerous for those who are unfamiliar with rowing because it is not only necessary for several people to breathe together, but also requires a highly skilled combination of movements. There is a problem that is not very helpful in getting out of danger quickly.

In recent years, a closed lifeboat with a mover is used in large ships carrying large amounts of oil or LPG gas, which is difficult to operate due to lack of oxygen in flame and oil-covered areas in the event of a large fire accident. Even with the risk of explosion, the mover is unlikely to have a good effect on lifesaving in an actual emergency.

On the other hand, in the mechanical propulsion device, which has less of these problems, there have been several types, including the type of rotating the impeller by stepping on the feet by the foot, but the device is not only complicated and occupies a lot of installation space, but also has a satisfactory propulsion speed. Due to inefficiencies such as being difficult to obtain, it is rarely adopted.

The present invention has been devised in this background, and the object of the present invention is to provide a useful mechanical propulsion device for lifeboats that can be quickly and safely escaped from an urgent danger situation by anyone propelling the lifeboat easily and at high speed.

The propulsion device according to the present invention can obtain the high speed propulsion of lifeboats by simple operation by simply or reciprocating the fixed lever in a short distance of about 1m by sitting in a lifeboat or a lifespan. It can control the forward and backward of the lifeboat arbitrarily, and it is easy to install due to its robust and efficient structure, and it has excellent effects such as being able to endure flame or gas for a long time in case of an accident. In the event of an accident, excellent life-saving effects can be achieved under significant adverse conditions.

Hereinafter, a more detailed description of the present invention will be described in detail with reference to the accompanying drawings.

In Figure 1, the overall configuration of the propulsion device according to the present invention is shown well, where the reference numeral 1 is a gearbox, which is fixed in place of the lifeboat to build the center of the propulsion device.

One main shaft 2 is vertically installed in the rear of the gear box 1, and one driven shaft 3 horizontally is provided on the front wall to receive the rotational force of the main shaft 2 horizontally. Inside the box is shown a medium-medium medium gear (4) (5) (6) (7) and the intermediate shaft (8) which subordinately transmits the rotational force of the main shaft (2) at a speed bonded to the driven shaft (3). Is reduced.

In the case of the upward extension of the main shaft 2 exposed to the upper side of the gear box 1, the ratchet box 9 is restrained and installed around the center axis line of the main shaft 2 so that the ratchet box 9 One end of the drive lever 10 is fixed to the connection.

The forward and backward reciprocating rotation of the drive lever 10 about the main shaft 2 and the subsequent reciprocating rotation of the ratchet box 9 are associated with the ratchet mechanism peculiar to the device provided in the box 9. The one-way rotational movement of the spindle 2 is carried out by a plurality of gear elements, and the one-way rotational movement of the spindle 2, whether or not the lever 10 is rotated in one direction or vice versa, ie Regardless of the rotational direction of the lever 10, the one-way rotational movement of the main shaft 2 takes place continuously while the lever 10 is moving. This action of the device is a general operation in which the electric movement occurs only when the lever is rotated in one direction. Unlike the ratchet mechanism, it is very effective in this case because there is no waste of force and simple thrust can be obtained.

The propeller shaft 12 is connected to the distal end of the driven shaft 3 withdrawn from the front of the gearbox 1 through the shaft coupling 11, and ultimately, the device is moved by the horizontal swing motion of the drive lever 10. The propeller shaft 12 is a one-way high-speed rotation, and at the same time to control the rotation direction associated with the forward and backward of the lifeboat can be arbitrarily controlled, the internal configuration of the ratchet box (9) to enable this action in more detail Looking at it as follows.

As shown in FIG. 1, in the box 9, a pair of identical rotary wheels 13 and 14 are provided at a predetermined interval on the main shaft 2, of which the lower rotary wheels 14 are fixed. The lower rotary wheel 14 is fixed to the main shaft 2, and the upper rotary wheel 13 is installed to be idle with the main shaft 2 through the bearing.

The rotary wheel 13 forms a circumferential portion having a ratchet tooth 131 and a conical portion having a bevel gear 132, and another rotary wheel 14 also has a ratchet tooth like the rotary wheel 13. 141 and bevel gears 142 are formed.

Bevel gears 132 and 142 are mounted on the main shaft 2 facing each other, and between the bevel gears 132 and 142 of these rotating wheels, the bracket 15 on the gearbox 1. One idler bevel gear 16 supported by the is engaged.

Meanwhile, referring to FIGS. 3, 4, and 5, one camshaft 17 is vertically maneuvered in the ratchet box 9 at a position close to the front of the rotary wheels 13 and 14. On the camshaft 17, a pair of cams 18 of the same size and shape are provided at positions corresponding to the circumferential portions of the ratchet teeth 131 and 141 of the rotary wheels 13 and 14 described above. ) And (19) are formed at an angle twisted appropriately with each other, and the sprocket 20 is fixed to the upper extension end from which the camshaft 17 is drawn out above the ratchet box 9.

In the ratchet box 9, a pair of ratchet arms 21, 22, 23, and 24 are provided to face each other with each cam 18 and 19 therebetween. These arms are provided with protruding branches 91 and 92, each having its distal end shafts 21 'and 22' and 23 'and 24' formed inside the front wall of the box 9; While being constrained by the rotating material, the springs 25, 26, 27, and 28 provided between them and the side walls of the box 9 are forced to the cams 18 and 19, respectively. have.

The upper cam 18 of the cams 18 and 19 is such that only the tip of any one of the ratt arms 21 and 22 is engaged with the ratchet 131 of the upper rotary wheel 13. The reduced surface 181 and 182 and the arc portion 183 is formed, the lower cam 19 is the same shape and size, but the reduced surface 191,192 and arc portion 193 is the upper side Since the cam 18 is formed at a position twisted about 90 °, when the ratt arm 22 on one side is engaged with the upper rotary wheel 13 by the upper cam 18, the lower cam 19 The ratchet arm 23 in the opposite direction is engaged with the lower rotary wheel 14, and these rotary wheels 13 and 14, cams 18 and 19, ratchet arms 21 and ( 22), (23) and (24) can be better understood from the exploded perspective view of FIG. 1, FIG. 3, and FIG. have. According to this configuration, the horizontal reciprocating rotational movement of the drive lever 10 around the main shaft 2 is connected to the main shaft 2 regardless of which direction the lever 10 is rotated back and forth according to the operation relationship of the present invention described later. It is transmitted continuously to produce a continuous one-way rotation of the main shaft (2), the rotation of the main shaft (2) large and medium intermediate gears (4) (5) (6) (7) inside the gearbox (1) described above. Subordinate transmission to the driven shaft (3) through the) will result in a high speed rotation of the propeller shaft (12) connected thereto in one direction. Here, the forward and reverse rotation of the main shaft (2) related to the forward and backward of the lifeboat can be selected as forward rotation or reverse rotation by turning the camshaft (17) to the left and right within the set predetermined angle range through a desired means, This selection makes the ratchet arm 22 engaged with the rotary wheels 13 and 14 by the action of the cams 18 and 19 when the camshaft 17 is rotated at an angle in the state shown in the first and second roads. And (23) are released from their engagement and at the same time the opposite arms (21) and (24) are engaged with the rotary wheels (13) and (14) instead.

Thus, in the embodiments shown in FIGS. 1 and 2 as a means of returning the camshaft 17 for controlling the forward and backward movement of the lifeboat, one adjustment handle 29 is hypothesized in the speed of the lifeboat on which the device is installed. The sprocket 31 is fixedly installed at the end of the 30 so as to connect and install the chain 32 between the sprocket 31 and the sprocket 20 on the upper end of the camshaft 17. 29) by holding the hand by a certain angle, the camshaft 17 is returned to the desired angle through the chain drive mechanism so that the rotational direction of the main shaft 2 can be simply selected by the above-described action.

The rotation of the handle 29 is preferably made only within a certain angle range set for stable forward and backward control of the lifeboat, and in some cases, the rotation means of the camshaft 17 is fixed to the upper end of the camshaft 17. It can be replaced by connecting a predetermined lever capable of forward and reverse rotation within the angular range.

Meanwhile, the handle lever 35 having the handle 24 is connected to the front end of the driving lever 10 at a vertical or other suitable angle through the joint 33, and the pulley 36 installed at the lower portion of the joint 33 is provided. ) Is fitted and supported in the form shown in the guide 37 on the arc which is fixed on the lifeboat.

On the other hand, the longer the drive lever 10 is to obtain a high-speed propulsion with less force, in the case of a general lifeboat, the length of the drive lever 10 to 2m, the rotation angle of about 30 ° (this In this case, the swing width of the tip of the lever 10 is about 1.04 m), and it is preferable to operate the reciprocating motion about 30 times per minute.

In this way, restraining the tip of the drive lever 10 to the guide 37 through the pulley 36 is for the stable and smooth horizontal circular motion of the drive lever 10 during operation and the drive lever 10 is forced upward and downward. It is necessary to avoid receiving.

In some cases, the driving lever 10 and the guide device and the handle 34 may be installed and operated in the opposite direction. In this case, the idler bevel gear 16 of the gearbox 1 may be operated. It is necessary to change the installation location.

Referring to the operating relationship of the present invention configured as described above are as follows.

When the driving lever 10 is horizontally oscillated by a certain distance by the driver's driving (the operation of grasping the handle 34 and pushing back or pulling forward), the ratchet box 9 connected to the end of the ratchet box is fixed to the main shaft ( 2) the lever 10 is reciprocating rotational movement by the swing angle.

At this time, when the ratchet box 9 is rotated counterclockwise in the drawing, the ratchet arm 23 engaged with the lower rotating wheel 14 is rotated as shown in FIG. 4 of the ratchet arms installed therein. The wheel 14 is rotated counterclockwise so that the main shaft 2 rotates counterclockwise (the rotation direction of the main shaft 2 is set to the forward direction for convenience), and at the same time, the upper rotary wheel 13 The upper ratchet arm 22 receives the rotation of the lower rotary wheel 14 through the idler bevel gear 16 and rotates in the opposite direction, as shown in FIG. 3. The slide simply slides the tip to idle in the clockwise direction on the main shaft (2).

After the ratchet box 9 is rotated clockwise in the drawing, the upper ratchet arm 22 engaged with the upper rotary wheel 13 reverses the upper rotary wheel 13 clockwise. And the rotation of this upper rotary wheel 13 is transmitted via the idler bevel gear 16 to the lower rotary wheel 14 to rotate it counterclockwise, while at the same time the main shaft 2 is still half as in the previous case. It continues to rotate clockwise, that is, in the forward direction, and according to this action, the main shaft (2) in the state shown while the lever (10) swings back and forth while continuously causing forward rotation regardless of the direction of rotation, while the main shaft ( 2) The forward rotation of the gearbox 1 is transmitted to the driven shaft 3 through the check intermediate gears 4, 5, 6, and 7 inside the gearbox 1 so that the propeller shaft 12 is rotated at high speed in the forward direction. Fast-forwarding lifeboats Will result.

Such a series of effective propulsion is performed very effectively by a very simple operation in which the occupant of the lifeboat grabs the handle 34 and pulls it forward or pushes it backwards. Can be obtained.

If it is necessary to reverse the lifeboat during operation, hold the adjustment handle 29 and turn it by a set angle. Then, the rotation of the handle shaft 30 is rotated through the sprocket 20, 31 and the chain 32 through the cam shaft 17 The upper and lower cams 18 and 19 on the camshaft 17 are engaged with the rotary wheels 13 and 14 through the mounting structure as described above. While the cheat arms 22 and 23 are released from their mating relationship, the opposite ratchet arms 21 and 24, which are not engaged, are engaged with the respective rotation wheels 13 and 14 instead, thereby lever 10 Before and after the rocking motion is reversed to the reverse rotation of the main shaft 10 is the lifeboat is reversed, if you want to move forward afterwards to rotate the adjustment handle 29 to its original position.

In this way, the propulsion device of the lifeboat according to the present invention can not only obtain the high speed propulsion of the lifeboat without any wasteful waste of power by a simple driving operation, but also can control the forward and backward movement at will.

In FIG. 6, various installation examples of the present apparatus are shown. FIG. 6a shows one propulsion device of a single drive lever, 6b shows two propulsion devices of a single drive lever, and 6c shows bidirectional drive. Each of the four propellers of two levers in one lever and the sixth or bidirectional driving lever of the propulsion device are shown in a case where a plurality of persons cooperate to drive each other. It can be selected and other modifications are also possible.

In addition, this apparatus can be usefully applied to other leisure, sports, or small ship composition such as coastal coast or fish farm.

Although the present invention has been described in accordance with the specific embodiments shown in the drawings, various modifications and modifications are possible without departing from the technical scope of the present invention.

As described above, the present invention is a mechanical propulsion device of a simple, highly efficient and robust lifeboat, which can not only obtain the high speed propulsion of the lifeboat but also control the forward and backward arbitrarily by simple operation without the need for skilled personnel. It is a useful feature that can withstand long periods of time in any adverse conditions and is reliable in operation, thus greatly contributing to valuable lifesaving in a disaster.

Claims (3)

One vertical spindle (2), one horizontal driven shaft (3) in which the rotation of the spindle (2) is subordinately transmitted through a plurality of intermediate gears, and a conventional fixed gear box (1) in which these mechanical elements are housed. And the bevel on the extension of the main shaft (2) with the cylindrical latch tree (131) (141) and the cone bevel gear (132) (142) in a unified manner and withdrawn from the top of the gearbox (1). A pair of rotary wheels 13 and 14 installed so that the gear teeth 132 and 142 face each other, one of which is idle with the main shaft 2 and the other with the main shaft 2 integrally rotated. , The idler bevel gear 16 supported by the bracket 15 from the gearbox 1 and engaged between the rotary wheels, and the rotary wheels 13 and 14 are accommodated therein so as to be mounted on the main shaft 2. A ratchet box (9) constrained by a rotational material in the rotor and cams (18) and (19) in a proximal position corresponding to each of the rotary wheels (13) and (14). Inside the ratchet box 9, the camshaft 17, a means for manually rotating the camshaft 17 within a predetermined fixed angle range, and the camshafts 17 and 19 are in contact with each other. And a pair of upper and lower sides of the upper and lower sides alternately engaged with the latch teeth 131 and 141 of the rotary wheels 13 and 14 by the cams 18 and 19 as the cam shaft 17 rotates. And ratchet arms 21, 22, 23, 24, and a drive lever 10 connected to and fixed to one side of the ratchet box 9 to rotate the ratchet box 9. Lifeboat propulsion device characterized in that. The adjusting shaft (4) according to claim 1, wherein the means for manually rotating the camshaft (17) is provided with a sprocket (20) at an extended end of the camshaft (17) drawn out of the ratchet box (9) and provided in place of the lifeboat. 30. The propeller of a lifeboat characterized in that the chain 32 is connected between the sprocket 31 on the sprocket 20 of the camshaft 17 on the sprocket 31. The propeller of a lifeboat according to claim 1, wherein the drive lever (10) is equally provided on both sides of the ratchet box (9).