JPS6056692A - Mast support device - Google Patents

Abstract

PURPOSE:To make a guide member alone replaceable in time of wear in the guide member, by locking the guide member, installing on a top surface a rack which engages or disengages to or from a mast step installing a sail mast, to a concave groove installed in the longitudinal direction of a sailing board. CONSTITUTION:A first concave groove 72 is formed on a top surface 13 of a sailing board over its hull longitudinal direction, while further a second concave groove 74 is formed in a central part of the first concave groove 72, and a guide member is locked inside these concave grooves 72 and 74. The guide member is made up of a rack 80 on its top surface, a horizontal part 76 and a vertical 78, while a lower engaging part 86 of a mast step 18 is engaged with both sides of the rack 80, and the guide member is formed free of moving and stopping in a hull longitudinal direction by engagement of disengagement with the rack 80 by means of a ratchet mechanism. With this constitution, when the guide member is worn out, the guide member alone, which is locked inside both concave grooves 72 and 74, is replaceable.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mast support device for a sailing board, such as a WINDSURF, which supports a mast with attached sails on the board.

Preferably, the device for supporting the mast on the board is such that the longitudinal position of the mast relative to the board can be changed during sailing.

According to this configuration, by moving the mast forward, the waterline length, which is the length of the board in contact with the water, can be extended, so the board speed can be increased, and the sail can also be moved backward in the direction of travel. This makes it easier to ride in strong winds. Conversely, by moving the mast to the rear, the length of one line can be shortened and the front part of the board can be raised, thereby preventing the front part of the board from plunging into the waves. In this way, the mast can be placed in the optimal position during sailing depending on the skill of the lighter and the strength of the wind.

By the way, in order to make the position of the mast with respect to the board variable in the longitudinal direction, it is necessary to move the mast step that connects the masts along the guide member, and the mast step or guide member that is caused by repeated movement is Preferably, you can handle $30. In particular, if the guide member is fixed to the board, the entire board must be replaced when the guide member wears out, which is extremely uneconomical.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a mast support device that allows the mast to be moved in the longitudinal direction of the board and also allows replacement of guide members worn out by the mass steps.

The present invention is a device for supporting a mast to which a sail is attached on a board, comprising a mast step that connects the mast, and a guide member that guides the mast step in the front and back direction, the device being releasably fixed to the board. Provided is a mast support device including a guide member.

The present invention also provides a device for supporting a mast on a hoard from which a sail can be taken off and taken off, comprising: a mast step for mast masting, and a guide member for guiding the mast step in the front-rear direction, and the above-mentioned board. a guide member having a first engagement means, the guide member being removably disposed in a section provided in the board;
a mast support device comprising a second engagement means for engaging with a retaining means to prevent the guide member from disengaging; and a member disposed in the interior of the board for preventing movement of the guide member. provide.

The present invention also provides a device for supporting a mast with several sails on a board, comprising a mast step for connecting the mast, and a guide member for guiding the mass I/step in the front and rear direction. It was removably placed in a groove provided in the board. a guide member having a first retaining means; a second retaining means provided in the groove of the hoard and engaging with the first retaining means to prevent detachment of the guide member; a member disposed within the groove of the board to prevent movement of the guide member; the +1 member includes a stopper rotatable about a vertical axis; and means for holding the mast in a lateral position.

Embodiments of the present invention will be described below with reference to the drawings.

The present invention relates to a mast support device for a sailing board 10, as shown in FIG. 1, a device 16 for supporting a mast 14 on a board 12J.

The mast support device 16 includes a mast step 18 and a guide member 20.

The board 12 includes a center board 22 that projects downward at the center thereof, and a fin 24 that projects downward at the rear end. A guide member 20 is placed at the center of the upper side of this board 12 in the longitudinal direction of the board, that is, in the front-back direction.
is located.

A triangular sail 26 is attached to the mast 14, and a pair of pooms 28 are attached to the mast 14 and the sail 26 via a boom 29. This mast 1
A base 32 with a universal joint 30 is attached to the lower end of 4, and the mast 14 is attached to this base 3.
2 to the mast stem 18 as described below.

A mast step 18 connects the mast 14 and guide member 2
0 and can move in the front and rear directions of the board. The mast step 18, as shown in FIGS. 2 and 3,
The almost cylindrical connecting part 34 in the center and this connecting part 3
4 and a pair of ratchet support portions 35 having an inverted groove shape in cross section, and the connecting portion 34 has a hole 36 extending vertically. A pair of rollers 38 are arranged in this hole 36 with their axes perpendicular to the axis of the hole 36 and spaced apart by one interval.

Each roller 38 extends through the hole 3 within a groove 40 provided in the connecting portion 34.
The spring 42 moves the hole 3 in the radial direction.
6 axis.

On the other hand, the base 32 of the mast 14 has two
The universal joint 30 is formed to be able to swing around two bins 46 and 48, and the connecting bin 44 connected to this universal joint is defined by η11. The connecting pin 44 has an annular ring 45 extending in the circumferential direction, and when the connecting pin 44 is inserted into the space between the pair of rollers 38, each roller 38 is pushed apart in the radial direction. Groove 45
When the roller 38 reaches the position of the roller 38, the roller 38 is drawn 45
The mast 14 is fixed by holding the connecting pin 44 with the clamps. It is preferable to attach a rubber boot 31 around the universal joint 30 to block water, dust, and other foreign substances.

Each ratchet support part 35 of the mast step 18 has a square hole 5
0, and the lower part of this square hole 50 is a protruding portion 51 whose side wall portion extends inward.

The foot pedal 52 has a square hole 5, as shown in detail in FIG.
0, and a pin 54 that projects downward from the leg 53.

The ratchet 56 has two ends 58 as shown in FIG.
．． 59 and an inclined portion 60 connecting the inner end portion. One end 58 of this ratchet 56 is passed through the pin 54 of the foot pedal 52, an E crimp 62 is inserted between the end 58 and the head of the pin 54, and the ratchet 56 is attached to the foot pedal 52 ( = 1, and can be operated using this foot pedal.The width W+ (FIG. 4) of one end 58 of the ratchet is the square hole 5 of the mast step 18.
0, and the width W3 of the other end portion 59 and the inclined portion 60 is wider than the width W2 of the square hole. The shoulder portions 61 located at different widths of the ratchet are inserted into the horizontally oriented νJ notches 64 provided in the raised portion 51, and the ratchet 56 can swing about the shoulder portions 61 as fulcrums. A compression coil spring 66 is disposed between the end 59 of the ratchet 56 and the connecting portion 34 of the mast step 18;
End FjT/.

59 is biased downward by 11+J by this coil spring 66. Therefore, when the foot pedal 52 is depressed, the ratchet 56 is moved 1.11 times with the shoulder 61 as a fulcrum against the spring force of the coil spring 6G, and the end 59 moves upward.

The guide member 20 extends in the front-rear direction of the board 120! +17
7 It is placed in a removable and readable manner inside the Q. In the example of the small figure, groove 7
0 is the top surface 13 of the port 12, as shown in detail in FIG.
The first groove portion 72 is formed shallowly from above, and the second l+W BB 74 is provided at the center of this groove portion 72 and is formed deeply from the upper surface 13. On the other hand, the guide member 2
0 is a rectangular flat plate-shaped first main body portion 76 disposed within the first groove portion 72 and a rectangular parallelepiped that is integrally projected from this main body portion and disposed within the second groove portion 74. It is molded from nylon, polytetrafluoroethylene, or other plastic. According to the configuration of the guide member 20, the looseness of the guide member 20 in the groove 70 can be suppressed by the first body portion 76.
This can be prevented by fitting the first body portion 78 into the first groove 72 or fitting the firJ2 of the second main body portion 78 into the groove 74, which is easier to manufacture than a structure in which the entire guide member is fitted into the groove. .

The guide member 20 includes a rack 80 that projects upward from the first main body portion 76 and extends in the front-rear direction. This rack 80 is formed by arranging a plurality of teeth 82 in the front-rear direction, and has guide grooves 84 provided at the base on both sides thereof. The mast stem 18 was fixed to the lower end of the ratchet support 35 by force. It has a metal plate 86 thick enough to be inserted into the guide groove 84. The distance H+ (fourth
Figure) is the height H2 from the guide groove 84 of the rack 80 to the tooth tip.
(Fig. 3). As a result, the mast step 18 is attached to the guide member 20 by inserting its plate 86 into the guide groove 84, and in this attached state, the ridge 51 rides on the tip of the tooth 82, and the mast step 18
is guided by the rack 80 and becomes movable. When the mast step 18 is attached to the guide member 20, the lower end 59 of the pair of ratchets 56 provided on the mast step 18 enters into the tooth groove 83 of the rack 80 under the action of the coil spring 66, and the end The end surface 57 of the ratchet 59 facing the end of the other ratchet can come into contact with the teeth 82 .

As is clear from FIG. 2, when the pair of ratchets 56 are engaged with the teeth 82 of the rack 80, the mast step 18 cannot move in either direction. However, for example, in FIG.
When depressed, the end 59 of the left ratchet 56 is swung upward. At this time, the right ratchet 56 remains engaged with the rack 80. Therefore,
While pressing the left foot I pedal, press 1)
When trying to move 4 to the left, the ratchet 5 on the right
Since the end face 57 of the end 59 of the G abuts against the tooth 82, movement of the mast 14 is prevented. However, when trying to move the mast 14 to the right, the inclined part 60 of the right ratchet 56 climbs over the rack 82, so the mast 14
4 can be moved. Moreover, the mast 14 is moved one step at a time by riding on the tooth 82 of the ratchet 56 and entering the tooth groove 83, and does not move suddenly, so the mast 14 is reliably moved to a predetermined location. can.

Contrary to the above, when the right foot pedal is depressed, the square 14 can be moved to the left.

As shown in FIG. 3, the rack 80 of the guide member 20 is such that when the guide member 20 is installed in the groove 70 of the board 12, the tips of the plurality of teeth 82 do not protrude in three directions beyond the upper surface 13 of the board 12. It is preferable to set it as a height dimension. With this configuration, the teeth 82 of the rack 80 do not get in the way of the rider, so the rider can place his or her feet anywhere on the board.

The guide member 20 is formed as a standard body having the same shape and dimensions, and depending on the length of the board 12, a plurality of standard bodies can be connected and used, and some of them may wear out as a result of use. It is preferable that only that part can be replaced when it happens. In the example shown in FIG. 2, two standard bodies 20a are connected. The standard body 20a has a dovetail-shaped convex portion 90 at the left end and a groove-shaped concave portion 92 at the right end, and the convex portion 90 and the concave portion 92 constitute a dovetail groove joint. There is. As a result, connection and separation are possible by moving one standard body 20a laterally relative to the other standard body. The upper coupling surface 9r of the convex part 9o and the fourth part 92 is located in the first body part 76 of the guide member and spans the entire width of this body part.

The guide member 20 has first engagement means 94 .

In the example shown, the first engagement means 94 are connected to the second body portion 7.
8 is a land surrounded by a hole 96 opened vertically from the lower end of the hole 96 and a hole 97 opened horizontally from this hole 96. Preferably, at least one first engagement means 94 is provided for each standard body.

Board 12 has second engagement means 98 located within second groove 74 . This second engagement means 98 engages the first engagement means 94 of the guide member 20 and prevents the guide member 20 from disengaging from the board 12. In the illustrated example, the second engagement means 98 includes a base 100, an abutment part 101 extending vertically from the base, and a hook part 1 extending horizontally from the abutment part.
02, it is a metal hook member in the shape of two characters. A metal fixing plate 104 having a screw hole 103 is embedded in the bottom of the second groove 74 of the board 12, and a metal reinforcing plate 106 is arranged above the fixing plate 104, and the base 100 of the hook member and the reinforcement The hook member is fixed in the second groove 74 of the board 12 by screwing the screw 108 passing through the plate 106 into the screw hole 103 of the fixing plate 104. When fixing the hook member, the hook member is positioned so that its abutting portion 101 crosses the second groove portion 74.

A vertical hole 96 surrounding the first engagement means 94 of the guide member 20
The length in the front-rear direction is larger than the sum of the base portion lOO of the second engaging means 98 and the hook portion 102. As a result, when the hole 96 and the hook member which is the second engagement means 98 are aligned and the guide member 20 is pushed into the groove 70 of the board 12, the hook member is inserted into the hole 96. After the lower end of the first body portion 76 or the second body portion 78 of the guide member 20 reaches the bottom of the first groove portion 74 or the second groove portion 76, the guide member 20 is inserted into the abutting portion ioi of the hook member. When the hook portion 102 of the hook member enters the horizontal hole 97 and the first
The vertical wall 95 of the land abuts against the contact portion 101. As a result, the guide member 2
0 is prevented from leaving the L force, and the second securing means 9
Movement toward 8 is blocked.

The member 110 is provided to prevent movement of the guide member 20 in the water direction. This barrier member 110 includes a stopper 112, as shown in FIGS. 5 and 6. As described above, after the guide member 20 is inserted into the groove 70 of the board 12, it is moved toward one side in the I) 1'' rear direction and assumes a fixed position. Therefore, there is a guide member 2 between one end wall 114 provided at the end of the groove 70 in the front-rear direction and one end surface 116 of the guide member 20 opposing thereto.
The distance necessary to move the degree in the front and back direction is provided. Incidentally, the other end surface of the guide member 20 (not shown)
When the guide member 20 is moved in one direction, the groove 70
abuts against the other end wall of the The blocking member 110 fills the gap and prevents the guide member 20 from moving in the opposite direction.

The blocking member 110 has a groove 120 and a hole 122 into which a projection 118 provided on the upper coupling surface 91 of the dovetail-shaped projection 90 of the guide member 20 can be inserted, and the projection 118 can be inserted into the l+I 120. , the port 124 passing through the hole 122 is screwed into the screw hole of the fixing plate 104, and the blocking member 110 is inserted into the board 12.
is fixed in the groove 7o. In this fixed position, the top surface of the blocking member 110 is level with the top surface of the first body portion 76 of the guide member 20.

When the blocking member 110 includes a stopper 112 as in the illustrated example, the stopper 112 is preferably attached rotatably about its axis by a bolt 124 that fixes the blocking member 110 to the Bode 2. To do this, the cylindrical portion 123 is protruded in the extension of the hole 122, and this cylindrical portion 1
Insert the stopper 112 into the cylindrical portion 123 and the stopper 1113 so that the head of the stopper 124 is in contact with the cylindrical portion 123 and the stopper 1113.

The blocking member 110 includes means 130 for holding the stopper 112 in the front-rear direction and in a lateral position orthogonal to the front-rear direction. In the illustrated example, the holding F stage 130 is attached to the stopper 112.
a recess 132 and three ridges 13 projecting from the ill +1 member 110 and capable of entering the recess 132.
It consists of 4. The stopper 112 is formed of a linear member having a height that is approximately the same as the height of the teeth 82 of the rack 80 and a length that is approximately the same as the width of the mast step 18, and the recess 132 is provided on the lower surface of this member. It is being On the other hand, 2
Two ridges 134 are disposed laterally from the axis of the port 124 and one ridge 134 is disposed anteroposteriorly from the axis of the port 124. Recess 132 of stopper 112
When the bulge 134 enters the ridge 134, the stopper 112 cannot be rotated without a large force. As a result, the stopper 112 is
The stopper 112 can be held in this position by placing the ridge 134 in the recess 132, and similarly the stopper 112 can be held in the phantom line position. When the stopper 112 is in the horizontal direction shown by the solid line, the mast step 18 abuts against the stopper 112 and is prevented from moving. However, when the striker 112 is in the longitudinal direction shown in phantom, the mast step 18 can move beyond this stopper 112 toward the recess 136 in the board. Therefore, by making the length of the recess 136 in the longitudinal direction larger than the length of the mast step 18, when some kind of failure occurs in the mast step 18, the guide member 20 can be removed from the boat 12 without having to remove it. Only step 18 can be removed from the board.

According to the present invention, the member that guides the mast stamp in the longitudinal direction of the board is releasably fixed to the board, so even if the guide member wears out, it is possible to replace only this guide member. , you can deal with this. As a result, it is extremely economical compared to treating the entire board.

[Brief explanation of drawings]

Figure 1 is a perspective view of the sailing board, Figure 2 is a cross-sectional view of the support device taken along the front and back direction of the board, and Figure 3 is a cross-sectional view taken along line 3-3 in Figure 2. , 4th
The figure is a sectional view taken along the line 4-4 in Fig. 2, Fig. 5 is a plan view showing the guide section side and the barrier 11: section, and Fig. 6 is a sectional view taken along the line 6-6 in Fig. 5. FIG. lO; sailing board, 12 boats, 14; mast,
16; Support device, 18; Mast step, 20: Guidance Fall old, 26
; sail, 52; foot pedal, 56; ratchet, 70. Groove, 72; First groove portion, 74; Second groove portion, 76; First body portion, 78: Second body portion, 80 Nirakku, 82:
Teeth, 84; groove, 94; first retaining means, 96, 97; hole, 98; second engaging means, 110;
Blocking member, 112; stopper. Agent Patent Attorney Nobuyuki Matsunaga

Claims (1)

[Scope of Claims] (1) A device for supporting a mast to which a sail is attached on a hoard, comprising a mast step for connecting the mast, and a guide member for guiding the mast step in the longitudinal direction. and a guide member secured to the release II port. ('2) A device for supporting a mast to which a sail is attached on the hoard 1, which includes a mast step for connecting the mast, and a guide member for guiding the mast step in the front and back direction, which is provided on the board. a first locking guide member having a step disposed in the groove, and a guide member provided in the groove of the board that engages with the first locking means; a second retaining means disposed within said II'4 of said board for preventing detachment of said board;
A mast support device comprising: a member for inhibiting movement of the guide portion. (3) The groove of the board includes a first groove portion and a first groove portion within the first groove portion. a second groove formed deeper than the groove, the guide member includes a first body portion disposed within the first groove and protrudes from the first body portion; a second body portion disposed within the second body portion;
A mast support device according to claim (2). (4) The first retaining means is provided in the second main body portion and is surrounded by a hole opened vertically from the lower end of the main body portion and a hole opened horizontally from the hole. The mast support device according to claim (3), wherein the second retaining means is a land and the second retaining means is a hook member projecting upward. (5) The mast step is provided with a ratchet that can be operated by a foot bevel, and the guide member is provided with a rack that engages with the ratchet and has a plurality of teeth arranged in the front-rear direction. Mast support device as described in. (6) The plurality of teeth of the rack protrude upward from the guide member, and the mast step is guided by two guide grooves provided at the bases on both sides of the rack. A mast support device according to claim (5). (7) The mast support device according to claim (6), wherein the plurality of teeth of the rack have a height that does not exceed the upper surface of the board. (8) The two ratchets are arranged at intervals in the longitudinal direction, and these ratchets have mutually opposite effects on the movement of the mast step. Mast support equipment. (9) A plurality of the guide members are provided, and the plurality of guide members can be connected and detached by moving in the lateral direction.
A mast support device according to claim (2). (10) A device for supporting a mast to which a sail is attached on a hoard, comprising a mast step for connecting the mast, and a guide member for guiding the mast step in the rearward direction, which is provided on the board. a guide member having a first engagement means removably disposed within the groove;
a second engagement means provided in the groove of the board and engaged with the first engagement means to prevent the guide member from coming off; a member for blocking movement of the member, the blocking member comprising a stop rotatable about a vertical axis and means for retaining the stop in a fore-and-aft direction and a lateral position orthogonal to the fore-and-aft direction; Support device. (11) The mast support device according to claim (10), wherein the holding means includes a recess in the stopper and a protuberance that projects from the blocking member and can be inserted into the recess.