JPS5910720A - Starting decompression operating device and decompression type recoil starter for internal-combustion engine - Google Patents

Abstract

PURPOSE:To improve interchangeability as well as to aim at the promotion of miniaturization and lightweightiness, by separating the principal element of a decompression operating device from an engine. CONSTITUTION:A recoil starter is provided with a reel 4 inclusive of plural engaging projections 7, 7'... while a decompression selector device 18 detects the rotating displacement of these engaging projections 7, 7'... and numerically controls the rotative angle of the reel 4. An operating cable 58 cotrolling the on-off operation of at least one side of a suction or exhaust valve is coupled to the selector device 18. With the installing state and the number of engaging projections 7, 7'... altered properly, formation of the decompression state or the release time can be selectively altered. This decompression device is of compact and lightweight in type and, inasmuch as being attachable or detachable at will, it can be handled as one unit component.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compression actuator for starting an internal combustion engine and a decompression type recoil starter.

When using a recoil starter, which is often used as a starter device for internal combustion engines, in an internal combustion engine with an exhaust displacement of more than 200cc, it is necessary to temporarily set the combustion chamber of the internal combustion engine to a non-compressing state to facilitate its starting rotation. F
Those equipped with a decompression operating device are widely used.

[7 However, this type of conventional decompression actuation device
They lacked compatibility and relied on sheet metal molding or resin molding for the main parts, so they had the disadvantage of not being able to respond quickly to model changes. It's great to have it installed in the small space of a recoil scooter! -7 trouble ψ1 ``So,
There are drawbacks such as encouraging the recoil starter to become a dog-shaped vehicle gauze, and for these reasons, it has become difficult to install a decompression device into an existing recoil starter.

The present invention eliminates these conventional drawbacks, frees the decontamination retraction actuating device from the two-piece resin mold molding process that involves cutting a sheet metal mold, and makes it extremely compact and lightweight. In addition, by configuring this as a unit component, it can be easily installed using a small space without increasing the size and weight of the recoil starter, and can also be installed on existing glue coil starters. At the same time, by making it possible to selectively change the operating timing and operating time of the decompression actuating device, it is possible to design the optimal decompression actuating device according to the user. It is therefore an object of the present invention to provide a decompression actuating device for starting an engine and a decompressing no recoil starter for starting an internal combustion engine. The decompression switching device i is equipped with a recoil starter having a reel with a locking projection, and a decompression switching device f6 that detects the rotational displacement of the engagement projection and controls the rotation angle of the reel by the number of agents. Decompression of the internal combustion engine is achieved by connecting an operating cable that controls the opening and closing of at least one of the intake and exhaust valves of the internal combustion engine, and by appropriately changing the arrangement size or number of engagement protrusions formed on the reel. It is characterized by being able to selectively change the formation/release time of the decombination state and the formation/release time of the decombination state, as well as a rotation detection unit that detects the rotation angle of the reel, The present invention is characterized in that it has a decompression switching device having a decompression control section that counts the detected displacement of the detection section and a decompression control section that controls the compression state of the internal combustion engine. It is characterized by the fact that the starter reel is provided with an engaging protrusion that protrudes in both the vertical and horizontal directions.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
In the figures 1 to 4, 1 is a case, on the inside of which is fixed a cylindrical holder 2 with a diameter d and a reduced diameter part 2a formed at the upper end.
A reel 4 is rotatably attached to the circumferential surface of one half of the shaft 2 via a bush 3. The reel 4 has a concave groove 4a on its periphery that accommodates the rope 5, and is rotated by the drawer 17 of the rope 5 at the front, while a spiral is placed between the reel 4 and the case l. The rotation is reversed by the restoring force of the spring 6, and the rope 5 is wound into the groove 4a. In addition, a rope reservoir 7 in the shape of a cylindrical tube that accommodates the knot 5a provided at the end of the rope 5 is protruded from the outer periphery of the upper part of the reel 4. ''-In particular, a plurality of engaging protrusions 7, 7'' formed to have approximately the same diameter and the same height as the lobe reservoir 7.

7'' is an equiangular I0f\n,' If?? A brake spring inserted between the washer 12 and the retainer 1 (), a center screw 13, and a crank pulley connected to the crankshaft 1 () of the internal combustion engine 15, with C on its inner peripheral surface. A large number of engaging claws (not shown) capable of engaging with the dog 8 are formed.

On the side substantially opposite to the drawer 1111 of the rope 5 of the case 1 (the case overhang 1 having an opening 17 formed at the end d1)
a is provided protrudingly, and in the inner position of this case overhang 1a,
A decompression switching device w is installed to set the decombination resolution state of the internal combustion engine 15. That is, this decompression switching device 18 includes a rotation detection section 19 that detects the rotation angle H2'il of the reel 4, and converts the displacement of this rotation detection section from rotational displacement to linear displacement, and transfers the displacement to the next process. The displacement converter 4) is driven by the displacement converter 4), and the deconverter i is driven by the displacement converter 4) to control the decompression state of the internal combustion engine 15.
t' control unit 21 and deconf! till + ill:
'lζ21 control g
-The drive unit 22 is configured to directly turn on/off the comflation state.

The rotation detection section 19 is located at the end of the switching device 1) (t/) and is fixed between the base frame of the decombination switching device 1 and 2:3 and 24.
And this 11 + 25 via Bush 2fi 1. A detection lever 27 is rotatably supported by the lever lR11. Detection; / bar 2'7 Ire consists of a roughly elongated seven-piece body, and its 1h11 branch (1) has an engaging claw at one end that can be used for engagement with the slide described later. l1i1
A locking hinge 29 is protruded from the middle position of the other end of the shaft support, and is connected to the rear stopper and locking rib. '2rM
It is possible to engage with the above-mentioned lobe reservoir 7t, - side 141 mating protrusion 7, 7.7 by positioning the upper part of the + outer part [u-1-]. ;Tsuto detection lever 2
The torsion spring that hangs between 7 and 7: depending on the 〒ν original force of 〒ν, the above ``: returns to the ``el'' position according to the direction of rotation of 1 and the rotation direction of 4. , 1. so as to transmit the engagement displacement with the engagement protrusion 7 to the stopper. ing.

As shown in FIGS. 7 to 9, the displacement converting section 20 is a slide support section in which a part of the bracket 23 is bent.
1 and a slide 32 disposed inside this slide support part; 31, a notch 33 is formed in the side end part of the slide support part 31, and a screw hole is provided in the middle part in the longitudinal direction. 34 is formed. The slide 32 is made of a substantially horizontally elongated plate, and an elongated hole 35 is formed in the plate surface along the length direction, and the shaft portion of a screw 36 is loosely inserted into the elongated hole 35. Front slide support part 3 of slide 32
A notch 37 is formed at the side end opposite to the notch 33 of No. 1, and a spring 3 is formed between this notch 37 and the notch 3:3.
8 is tensioned, and the restoring force of this spring 38 normally urges the slide 32 to the right in FIG. 7, positioning its side end in the movement range on the retaining claw side. In this case, instead of the notch 33, it is also possible to attach one end of the spring 38 to the shaft Z5.

The decompression control section is adjacent to the displacement conversion section whip and has a rotatable gear cam 110 fixed to +fl+ 39 between the brackets 23 and 24.
And it is fixed to the bracket 23.I'll111.1
1 and a stopper 42 rotatably attached to the stopper 42. Gear force A 4 (1 is in the direction of one bite, cam 4
3, and the gear old part that can be engaged with the end of the moesuit Nishiride 40 are spaced apart from each other 7, among which cam 4:
A small-diameter cam portion 43a is formed using an arc-shaped cam for the majority of the boss, and the cam deviation of the small-diameter portion 4:)a is greater than that of the small-diameter portion 4:)a, and its rotation angle is smaller than that of the small-diameter portion 43a. It consists of a large diameter cam portion 43b having an arcuate cam surface. In addition, an engaging pawl 441) having a sawtooth shape is formed on the gear 44, leaving an arc-shaped sun-side surface 4.1a on the outer periphery of the boss. The old a and the cam/I3 are arranged so that the terminal end of the large diameter force section 4; 3b substantially coincides with the starting end of the slide surface 44a during steady rotation of the gear cam 40 in the counterclockwise direction in FIG. In this embodiment, the phase between the starting end of the slide surface a and the starting end of the large diameter cam portion 43b is approximately 140°.
They are different. 45 is a cup, an engagement pin protruding from the end surface of 43, 46 is a stopper formed by bending a part of the bracket 2/I, and 47 is the engagement pin 45 and the bracket 2.
It is a torsion spring with both ends hung on 4 and 111, and its r
The stopper 42 &:j: has a substantially rhombic planar shape due to the M base, and at least one tip 42a thereof is disposed so as to be able to engage with the engaging claw 44b, and is normally connected to the stopper 12 and the bracket 23. Due to the restoring force of the spring 18 which is suspended between the two, the return tendency to rotate counterclockwise in FIG. 6 is maintained. 1 is still attached to the side end opposite to the pointed end 42a of the stopper 42, and due to the rotational displacement of the detection lever 27 due to the reversal of the reel 4,
It is designed to engage with the front engagement pin 29. In this case, when the gear cam 40 is stationary +1;'1'' or (r), the torsion spring 47,
/18 resilience needs to be established.

The drive unit 22 has a shaft 49 fixed to the bracket 24 and a shaft 49 attached to the shaft 49.
De times Ji! l"J 711 and the second levers 52 and 53, the first lever 52 is a two-armed lever consisting of an engaging arm 52a and a supporting arm 52h, The distal end t of the engaging arm 52a is disposed to engage with the large diameter cam portion 4:3h, and a stopper 54 is attached to the 1HII end of the supporting arm 52b. d, first and second levers 52;
By the restoring force of the torsion spring 55 passed between the hooks 53 and 53, the tendency to rotate in the direction of A1 in FIG. On the other hand, the second lever 5:3 has a substantially doglegged planar shape, and its 1111+ branch side is connected to the first lever 5.
The support arm 52 of 2 is placed in the same phase as 1, and its (t
(While the li end can be engaged with the stopper 5-1, the restoring force of the torsion spring 56 stretched between the bracket 24 and the second lever 5-3 moves the counterclockwise direction in FIG. The tendency of the bracket to return to the position shown in FIG. A through hole 57 is formed at the distal end thereof, and a connecting portion 59 formed at one end of an operating cable 58 is accommodated within this through hole 57.

The other end of the operating cable 58 is shown in FIGS. 13 and 14.
As shown in the figure, the decompression arm 60 is connected to the tip of the decompression arm 6o which is rotatably attached to the outside of the internal combustion engine 15, and is normally operated by the restoring force of the torsion spring 61 attached to the decompression arm 60. 1 is pulled outward. 62 is a decompression cam that pivotally supports the combination arm 60, which engages with one end of the exhaust valve rocker arm 63 inside the internal combustion engine 15, and is connected to the exhaust valve 6.
4 to open the valve.

In the figure, 65 is an exhaust hole, 66 is an intake valve rocker arm, 67 is an intake valve, 68 is an intake hole, 69 is a piston,
70 is a connecting rod, and 71 is a camshaft.

In addition, the bent portion 24 a + 2 = 4 of the placket 24
A screw hole 72 is formed in the case 1, and the decompression switching device W can be installed by screwing in the holes 73 and 73 from the outside of the case 1, and the case 74 can be extended! tli, 1. a, Ij,') 1- on the outer periphery
I finished 11th on Mekos Day, and after that, Natsu 7 in the 1st division.
5 is solidified JL, the inner Mlj is connected to the operating cable 58, and the screw part of the outer cable 76 and the cape are now 111^l. 77 N, said opening 1. −． 1 part 17 is closed -
78 is a rubber horn bar that can be attached and detached from the edge of the case (Hide Rei 11a), and 78 is a ζ stopper that bends the end of the placket 2.1.
The 11th corner of the square is black: '5y square, 1ull.

To explain the operation of the grooved door of the present invention in this way, when the compression mechanism is activated, ill,
Therefore, as shown in Figure 53P, to Figure 12, the first l/be 5
? (1) The tip, the cam, and the 100 large-diameter cam im 43 b are stationary apart from each other, and the first lever 52 and the rotation axis are approximately nlb The second lever 5'3 that is supported is connected to the lever of the torsion spring 56 and the operating cable 58 at its tip.
In case 1, the stopper 78 remains in contact with the stopper 78 in order to receive the tension acting in the direction (d).
Since the decong cam 62 is disengaged from the exhaust valve rocker arm 63, the exhaust valve 64 is closed, thus decompressing. No state has been formed.

When the device is at rest, the tip of the stopper 42/I2a engages with a specific engagement claw 4/Ib of the gear cam/IO to maintain that state. Therefore, the above-mentioned condition will not be affected by, for example, vibrations and shocks of the equipment mounted on the internal combustion engine 15''!

Next, from such a stationary state, the rope 5 is pulled out via an operating lever (not shown), and the reel 4 is rotated in the "rotation direction," that is, in the clockwise direction in FIGS. 1, 10, and 11. The engagement protrusion 7 protruding from the upper surface of the reel 4 engages with the tip of the detection lever 27, and the detection lever 27 resists the restoring force of the torsion spring 30 (~), and rotates in a vertical direction in FIG. At the time i1, it rotates in one direction. FIG. the slide 32 with the spring 38
+71 tension and push to the left in Figure 10 with resistance 1-7 1. To feed, the other end of the slide 32 protrudes in the direction of the gear cam 10 (2) and comes into contact with the engaging pawl 4 1b, pushing this engaging fly in the same upward direction and sending it 7. -Cam・
1 (the engaging fly 1 counterclockwise in FIG. 10, against the restoring force of the torsion spring/I7, with 341 as the center) rotates by 1 pitch corresponding to 111.

17. As the gear cam 40 rotates, the large diameter cam portion 43b of the old cam engages with the first lever 52 (11+j).
When the tip of i F', 2 a approaches and the two engage, the first lever 52 resists the restoring force of the torsion spring 55 and rotates about the shaft 40 in the upper direction of FIG. 11. while the support arm 52 is integral with the first lever 512.
The signal is transmitted to the second lever 5 through L7 through the stopper 54 formed in FIG. 16, and as shown in FIG. Rotate clockwise in Fig. 11 around . This rice, m 2
(71L/) The operating cable 58 whose one end is connected to the C 53 is pulled to the upper right in FIG.
In the 14th position, the Tekonpu cam 62 was inserted against the restoring force of the
It rotates in the counterclockwise direction in the figure 2 and is displaced as shown by the imaginary line -F in the figure. As a result, inside the internal combustion engine 15, the decompression cam 62 engages with one end of the exhaust valve rocker arm 63, the arm 63 rotates, and the exhaust pulp 6
4 and opens the valve, the pressure inside the combustion chamber is reduced and a decompression state is created.

Therefore, when the piston 69 is raised in this state and the J:E compression stroke is performed, a part of the air-fuel mixture filled in the combustion chamber flows out to the exhaust hole 65, and the pressure increase in the combustion chamber is alleviated. Therefore, the starting torque of the internal combustion engine is reduced.

In such a decongression state, the decompression control unit 2
is held constant by J. That is, due to the rotation of the gear cam 4(), the tip portion 42 of the stopper 42
a is a torsion spring 48 that receives the back pressure of the engaging claw 44 and b.
It rotates clockwise in FIG. 10 around the shaft 41 against the restoring force of , and temporarily disengages from the engagement pawl/14b, but
The rotation of the gear cam 40 is stopped (7) and the next engaging claw 441) is engaged with the gear cam 40 to prevent rotation of the gear cam 40, and the gear cam 40 is in the stopped state, that is, the engagement claw 441). Since the rotation angle state of the gear cam 10 corresponding to one pitch of the slot is suspended, the large diameter cam portions l13 b and S
The state of engagement of the lever 52 of r1 with the engaging arm 52I) is maintained frozen, and the first and second levers 52
, 53 are kept constant. therefore,
The decombination state will be inherited.

On the other hand, when the reel 4 further rotates from the state shown in FIG. Rotate around 5 in the upper direction of the figure and set the wind level to 1.
Return to d. In this case, the engagement between the engagement claw side of the detection lever 27 and the end of the slide 32 is released.
2 moves to the upper right in FIG. 15 by the restoring force of the spring 38 and returns to its original position as shown in FIG. 17. and,
Even in such a case, the decompression state is maintained constant by the decompression control section 21 as described above. In this way, in the present invention, the rotation angle of the reel 4 can be detected via the engagement protrusion 7, and the decompression state can be quickly set. When setting the state, this can be achieved by making the distance between the engaging protrusion 7 and the detection lever 27 as small as possible when the reel 4 is at rest, and the distance between the two can be adjusted as appropriate. This makes it possible to selectively change the setting timing of the decompression state.

Next, when the reel 4 is further engaged from the state shown in FIG. Claw 44b
When the gear cam 40 rotates by an angle corresponding to one pitch of the engaging claw /14b, the stopper 42 functions to maintain the rotating state of the gear cam 40, and after this,
The detection lever 27 and the slide 32 return to the wind level Iff, forming a seven-point state as shown in FIG. In this case, the rotation of the gear cam 400 causes the first lever 5 to
The second engaging arm 52b engages with the peripheral end surface of the large-diameter cup portion 43b, that is, the maximum area of the cup deflection +11, and accordingly, the retaining arm 52b or the second lever 53 ) in the clockwise direction in FIG. 18 to increase the tension on the operating cable 58. The decongressional state is maintained without being released. Good luck, gear cam 4
0 rotation, the stopper 12 engages the engaging claw 441]
Even if the gear cam 40 temporarily retreats from the rotation range, when the gear cam 40 stops rotating, it quickly returns to its original position due to the restoring force of the torsion spring/I8 and engages with the engagement pawl 44b. This prevents reverse rotation of the gear cam 40 and maintains the relative positions of the first and second levers 52 and 53.

Furthermore, when the reel 4 rotates in the normal direction from the state shown in FIG. 19 and the low voice reservoir 7 and the detection lever 27 engage, the gear cam/lO is moved to one pitch of the engaging claw/14b as described above. It rotates by the corresponding angle and remains in the engaged state with the stopper 42 and one engaging fly remaining as shown in FIG. 21! On the other hand, since the engaging arm 52a of the first lever 52 engages with the peripheral end surface of the large-diameter cam portion 43b, the second lever 5 is located at approximately the same position as shown in FIG. , maintains the decompressed state. FIG. 23 and separate drawings The gear cam 40 and the first
and the second levers 52 and 530 are shown in a stopped state, and even in this case, the gear cam 40 is engaged with one of the engaging claws 44b.
The second lever 53 rotates by an angle corresponding to the pitch and is turned.
is located at approximately the same position as in FIG.
is engaged at the terminal end of the large diameter cam portion/13b.

On the other hand, in parallel with setting such a decompression state, as the reel 4 rotates, the dog 8 attached to the reel 4 resists the restoring force of the dog spring 9, and the retainer 10
The crank pulley 14 rotates in order to fly out to the outside and engage with the engaging claw 7 formed on the crank pulley Ill.
The crankshaft 16 is interlocked with this 17, and the internal combustion engine 1
5 compression strokes are performed. Therefore, in the above-mentioned decombination state, the starting torque is reduced, and the labor required for pulling out the lobe 5 is reduced.

Then, when the reel 4 rotates once and the engagement protrusion 7 and the detection lever 27 engage again, the gear cam 10 moves to 1) 11.
As described above, the engagement claw 44b rotates by an angle corresponding to one pitch, and as shown in FIG. In other words, when the sharp end 42a of the stopper 42 is in contact with the starting end of the slide surface 4.1a, the static 1 state is reached.
(-) On the other hand, the amount of movement around the cam 43 associated with the forward rotation angle of the gear cam 40 is, for example, from the terminal end of the large diameter cam part 431 in the separate drawings to the large diameter cam part 431). , 13b and the engagement arm 52a, the rotation of the gear cam 40 causes the retention arm 52a to reach the starting end of the small diameter cam portion 43a, The engagement between the large diameter cam portion 43b and the engagement arm 52a is released. Therefore, the first lever 52 rotates counterclockwise in FIG. 24 about the shaft 49 due to the restoring force of the torsion spring 55, and the second lever 5:3 follows the first lever 52. , it rotates about the shaft 49 in the same direction as the first lever 52 due to the restoring force of the torsion spring 56, comes into contact with the stopper 78, and returns to the original position as shown in FIG. In this case, since the gear cam 4 [] is in a constant meshing state with the stopper 42 as described above, the moped f*K
ld: Do not return.

As a result, the operation cable 58 acts in the direction of the case 1.
The tension that had been applied disappears, and the decompression arm 6 () connected to the other end rotates due to the restoring force of the torsion spring 61, causing the decompression cam 62 to return to its original state, causing the exhaust valve rocker arm 63 and the exhaust pulp to rotate. 64 is released, the exhaust valve 64 closes and the exhaust hole 65 is closed (7, the decompression state is released).

Then-C1 Under such a condition, the reel 4 rotates further, and the engagement protrusion 7 and the lobe reservoir 7'! 4 is test+1 lever 2
7, the detection lever 21 and slide 32 operate in the same manner as described above, and the gear cam 40 rotates by an angle corresponding to one pitch of the engagement lever. Located at the starting end of the slide surface 44a,
If the gear cam 40 cannot form a state of mesh with the gear cam 40, the gear cam 40 rotates counterclockwise. 17 Therefore, in such a state of the gear cam 40, the engagement arms 52 a 4 d
: Since the small diameter cam part 43a is still located and the engagement relationship between the two parts is not formed, the first and second levers 52
, 53 maintain the state shown in FIG. 26, and the decompression release state is maintained.

Next, when the operating lever (not shown) is released from the state shown in FIGS. 6 and 26, for example, the IJ-ru 4 is reversed by the spring force of the spiral spring 6, and the In other words, by reversing the reel 4, for example, the retaining protrusion 7'' is brought into contact with the detection lever 2 from the opposite direction.
7, the detection lever 27 rotates around the shaft C in the direction of the time schedule shown in FIG. Therefore, the detection lever 27
The engaging pin 29 protrudingly installed engages with the side end of the stopper 42, and the stopper 42 rotates clockwise about the shaft 41, causing the pointed end 42a to engage with the rearmost end. Matching claw 44
The meshing relationship with the engagement claw 44b is released, and the stopper 42 is retracted from the rotation range of the engagement claw 44b. For this reason, the gear cam 40 is simultaneously moved in the 2 o'clock direction in FIG.
The engaging pin 45 protruding from the stopper 4 contacts the stopper 4 (7) and stops its rotation, while the gear cam 40 then engages the pointed end 42 of the stopper 42 to a specific engaging claw 44b.
A meshes and restores its original state. Therefore, in this case, the internal combustion engine 15 is kept in a decompression state before and after the reversal of the wheel 4. FIG. 27 and FIG. 4 show the operating state at this time.

On the other hand, when the internal combustion engine J5 is set to the decompression state as shown in FIGS. 73 and 24, for example, if the reel 4 reverses due to an erroneous operation, the detection lever 27, the stopper 42 , the gear cam 40 operates as described above (7-0, as the wind position returns to 16 - and the first lever position) 2's engagement arm 52a and the large diameter cam portion 4; 3b are disengaged. Then, the first and second levers 52 + 53 are respectively at the hull position 1r1'
In order to return to the state, a decompression release state and a decompression state are formed. As long as it is 1°, it will be quickly formed by the restoring force of the torsion spring 47, etc., so if, for example, the internal combustion engine 15 is started due to an erroneous operation and the reel 4 is not there, the reel 4 can be slightly reversed to form a reset state. After r, the internal combustion engine 15 can be started due to the re-operation shift.

In the above case, the rope 5 is 14'lj,
It is possible to rewind the IJ-ru 4 and then operate it again (this eliminates the complexity of the conventional operation in step 2. However, in this embodiment, after the engagement protrusion 7 comes into contact with the detection lever 27 L7, Since the internal combustion engine 15 is in a decompression state while the reel 4 rotates approximately once, in the above case, the decompression state can be obtained without setting the reel to the reset state. This means that re-operation can be performed extremely easily and rationally.

On the other hand, the decompression actuating device of the present invention, especially the decompression switching device, is constructed as a single component using the brackets 23 and 24 as a base frame, and is small and lightweight. It can be installed using a small space 17 and can be installed regardless of whether it is a new or ready-made rN, and is highly versatile. The work is extremely easy and it is still advantageous in terms of maintenance. In this case, in the above-mentioned embodiment, only the decombination switching device is made into a unit and made detachable 17, but this is made into a unit with, for example, the case overhang 1a, and is fitted by fitting it into r4t from the outside of the case 1. If configured so that it can be used, it will be possible to use various types of glue regardless of the presence or absence of the case projecting portion 1a.

In the above-mentioned embodiment, the 1-engaging protrusions 7 and 7°IJ 7 were formed by fitting one each into the structure of the lobe reservoir 7 in order to improve the structure, but in this example, However, the engagement protrusion 7 and the like are provided on the reel 40 top 111, but this is not limited to this example. It may be provided on the inner circumference or the circumferential edge of the groove 4a, and in addition to the one protruding perpendicularly to the plane of the reel 4 like a retaining projection, for example, the top of the reel 4 [, < It is also possible to install an engaging protrusion that protrudes into the water on the peripheral edge of the lower surface of the indentation 4a.
It is Noh. In addition, instead of engaging protrusions, etc., a concentric groove is provided only on the edge of the surface of the reel 4, and a protrusion with a protrusion size 1 corresponding to the retaining protrusion is attached to this groove. Installation 7,
In addition, the detection lever 27 may be configured to scan the inside of this groove.In short, any engagement means may be used as long as it allows the decompression switching device to detect the rotation angle of the reel 40 at 11 degrees Celsius. It is also 5J Noh.

In the above-mentioned embodiment, the engaging projections including the rope reservoir 7 are arranged equally, and the decompression is set to be released at approximately one rotation position of the reel 4, but this is not limited to this example. For example, by arranging the intervals locally and densely, it is possible to set the ON/OFF timing of the decompression state earlier or later, or selectively change the length of the decompression state or its release section. can do. Therefore, with this configuration, it is possible to provide a decompression actuating device suitable for the user, for example, for women and girls who lack the strength to pull out the rope 5, and for adult men who have the strength, First, from the standpoint of ergonomics, it is possible to provide an operating device that sets the optimal decompression position according to the body shape of the user, taking into account arm length, etc.

As described above, the present invention separates the main part of the decompression actuating device from the internal combustion engine, so it can quickly respond to model changes, etc.
By making the decompression switching surface smaller and lighter,
The recoil starter can be accessed using a small space, which has the effect of promoting miniaturization and weight reduction of the recoil starter and the like. 1. The decombing device is small! In addition to being lightweight, it is also easy to install on recoil starters, etc.
Since it can be easily removed and removed, it can be handled as one unit part, and it is easy to install it to a recoil starter, etc., and it is easy to maintain. Further, in the present invention, the engagement protrusion formed on the reel can control the formation or release timing of the decompression state of the internal combustion engine, as well as the formation or release of the decompression state. Since the release time can be controlled, it is possible to provide an optimal deconflation operating device depending on the user, for example.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing one embodiment of the present invention, and Fig. 2 is a plan view showing an embodiment of the present invention.
3 is a plan view showing an example of the decong switching device constituting the present invention, FIG. 4 is a sectional view taken along line BB in Figure 3, and FIG. is Fig. 4 upper c-c'
FIG. 6 is a cross-sectional view along line 1)-D in FIG. , FIG. 8 is a view from iE in FIG. 7, FIG. 9 is a sectional view taken along line E:-E in FIG. 7, and FIG. 10 is a plan view showing an enlarged main part of the present invention. 17 shows the relationship between the rotation detection section, displacement conversion section, and decompression control section in the stationary state of the decompression switching device.
FIG. 11d is an enlarged plan view showing the essential parts of the present invention, and shows the relationship between the decompression control section and the drive section in the stationary state of the telecombustion switching device, and FIG.
13 is an explanatory diagram showing an example of an internal combustion engine using the present invention.
The figure is a front view showing the state of the decompression arm and the operation cable, and FIGS. Figures 19, 21, 2:3, δ, and 27 show the operating states of the rotation detection section, conversion section, and decompression switch 1 part of the decompression switching device.
, 22 , 24 , 2 (). Figure 28 shows the operating state of the control section and drive section of 1: Tecomp switching device 4. 4... Reel, 7', 7, 7... Engaging protrusion, 15...
Internal combustion engine, A... Tekonbu switching system -'', A/rotation detection section, 21... Decombue control section, 58... Operation couple, down... Exhaust Harz, 67... Intake/N) rev Figure 3 Figure 4 Figure 5 Figure 6 44G 39

Claims (9)

[Claims] (1) A reel training camp coil starter equipped with a plurality of engaging protrusions, and a decompression switching device that detects the rotational displacement of the engaging protrusions to count and control the 10I movement angle of the reel, An operation cable for controlling the opening and closing of at least one of the intake and exhaust valves of the internal combustion engine is connected to the switching device L.
A decombination actuating device for starting an internal combustion engine, characterized in that: li. (2) When the IJ-reel stops rotating, the decongression state of the internal combustion engine is formed and released according to the rotation angle of the reel! A decongression actuation device for starting an internal furnace engine according to claim 1, which has one feature. (3) A feature π1° characterized in that when the reel is reversed, the internal combustion engine is released from the compression state.
Solution (Scope of Requirement) Decongression operation system for starting the internal combustion engine described in item 1. (4) Formation of the decompression state of the internal combustion engine by appropriately/A-history of the arrangement state or number of engagement protrusions formed on the reel, or A compression operating device for starting an internal combustion engine, characterized in that the formation and release times of a compression state can be selectively changed. (5) During IE rotation of the reel, the decompression formation state of the internal combustion engine is maintained during rotations Q+ within a certain angle of the reel 1-7, and when the reel is rotated beyond the above certain angle, the decompression is 5. A decongression actuation device for starting an internal combustion engine according to claim 4, characterized in that the deconversion device releases the state. (6) Claim 4, characterized in that the reset state is immediately set when the reel reverses.
A decompression actuation device for starting an internal combustion engine according to paragraph 1. (7) It includes a decompression switching device equipped with a rotation detection section that detects the rotation angle of the reel, and a Tecomp control section that counts the detected displacement of the rotation detection section and controls the deconflation state of the internal combustion engine. ! Decompression actuation device for temporary starting of internal combustion engines. (8) Special claim 7, characterized in that the rotation detection section is operable via a locking protrusion provided on the reel.
Decompression operating condition for starting the internal combustion engine described in section t.
Pi. (9) The rotation detecting section transmits the detected displacement to the decompression control section when the reel rotates in the normal direction, and the control amount of the decompression control section can be set to a zero value when the reel rotates in the reverse direction. A decompression actuation device for starting an internal combustion engine according to item 7. (10) A special provision characterized in that the decompression control section is capable of cumulatively displacing the cumulative displacement based on the detected displacement of the rotation detecting section, maintaining this cumulative displacement when the reel rotates in the normal direction, and setting it to a zero value when the reel rotates in the reverse direction.゛The decompression actuating device for starting an internal combustion engine according to claim 7. Oυ The decompression regulating part 1 is configured to cause the decompression-like shaft of the internal combustion engine to become smooth when the cumulative displacement is below a certain level. 12. When the cumulative displacement is above a certain value, the decombination state is released. Decompression Actuation Device. 02. The decompression/rough 9F actuation device for starting an internal combustion engine according to claim 7, wherein the deconzo switching tube is constructed as a unit. 03 1) - A decompression type recoil star, characterized in that a plurality of engaging protrusions protruding vertically or horizontally are arranged on the wheel. 0.9 The engaging protrusions are arranged on concentric circles. The decompression type recoil star according to claim 13, characterized in that: Q→ The mutual spacing between the engaging protrusions is coarsely or densely spaced so that the internal combustion engine is in a decompression state. A decompression type recoil starter according to item 13 of the scope of Patent No. 8N, characterized in that the formation or release of the compression state and the period of formation or release of the compression state can be changed.