TW521129B - Braking device - Google Patents

Abstract

The object of the present invention is to provide a brake device that can be easily used when progressing on the hill and can be manufactured in light weight and small size. Additionally, the brake device can maintain steady brake force in raining days or any other condition. The brake device of the present invention uses a brake drum 3 mounted on the rotary axle of the wheels 101 and rotated simultaneously with the axle to constrain the rotation of the wheels 101. The brake device of the present invention comprises of the lock shoe 30, which can be fixed in the inner surface of the brake drum 3 to constrain the backward or forward rotation of the brake drum 3.

Description

V. Description of the invention (1) Technology The present invention relates to brakes, wheelchairs, breast-feeding vehicles, etc., and more specifically, the ± JtM vehicle discipline applies to brake devices. Generally mounted on a wheelchair. The levers and brakes that can be shaken freely are provided on the frame of the wheelchair and can be braked. In addition, a part of the control lever is pressed against the structure for rotating the wheels. Therefore, the two wheels of the wheelchair are separately combined and braked. ^ When the lever is used, it becomes a rain wheel at the same time. However, both hands needed to ride the two wheels of a wheelchair are difficult to release the brakes when rotating the two cars. On the ramp, push the moving wheel to release the brakes. There are cases where the joystick operation cannot be taken, and it is rotating. However, the user status. Therefore, it seems extremely difficult in this matter. Even if the control lever is operated by one side and the other side is pressed against the one-sided wheel, there will be a car that is pressed by one hand on a slope such as a ramp, f-axis, the possibility of a wheelchair rotating into a dangerous situation. In addition, for those users who lack the wrist power, it is easy to think that there will be situations where the wheels cannot be pushed on the ramp due to insufficient power to press the wheels. This $ ′ is necessary not only during the propulsion, but also when climbing a hill, etc., and it is necessary for the user to quickly advance the next propulsion in a very short time by rotating the wheels with inertia. In other words, if the wheel cannot be rotated continuously for a short time, the wheelchair will move backwards. Therefore, it is extremely difficult for elderly people and people with severe disabilities to walk on slopes.

V. Description of the invention (2) Who is walking on the slopes of Hi safe and easy to wheelchair? ^^ S '1 ^ -28231 „2 ί; Γ-ΤZ8 Μ ^ ΐ ί Improved brake device. In addition, it is the brake disclosed by ^ hitting '227408 Order! And, by making an operation so as to push the brake arm to the affection of the car 1. But: =: end of the brake part Produced by contact with the wheels: make the brakes ^ a braking unit when the wheels are moving forward and backward ^: the brakes to perform their functions 使: make; as a normal brake dream to make the braking action < ^ brakes The part is only used to reverse the rotation of the wheel 8Γ as a counter-spin ^ Retreat 2. Therefore, by using this device, you do not have to: set its work car f =, Japanese Patent Laid-Open No. 11-2823 No. 1 The situation of the soap coat in the bulletin is to make the one-way direction by using:? 不 之 沙 = 2 'advance in front of the wheelchair and two = the control lever of the pusher (the f sheet is used as the outer setting. Ramp; and roll that cannot be rotated in the opposite direction = = spin push = cord can automatically brake the form of the slope when reversing 4 = wheel connection It can only move forward on the wheels. Therefore, it is safe to advance on the ramp and climb the slope only if J brake is released or not. However, it is safe and easy to slope regardless of which of the brakes described above. Page 6 C: \ 2D-CODE \ 91_05 \ 91102598.ptd 521129

In order to solve the above technical problems (1) The braking device of the present invention, the following mechanism is adopted. And the system that rotates at the same time as the rotating shaft is a braking device made on the rotating shaft of the wheel, and is characterized by: "Fade cylinder, when the rotation of the wheel is limited to positive rotation or reverse rotation. When the inner peripheral surface of the brake drum is rotated toward the brake drum, the rotation of the wedge system in the upper rotation direction is limited to 2 to rotate the above-mentioned brake drum forward or reverse (2) In order to achieve the above purpose, The brake device described in the above (1) 521129 5. In the description of the invention (4), the above-mentioned braking mechanism may also be that the reverse expansion of the brake drum is connected to the inner peripheral surface of the brake drum, so that when the brake rolls twice, Wedge-shaped composition. The rotation of ° is limited. In the braking device of the present invention, the so-called rotation of the brake drum wheel t means that the positive rotation of the brake drum means the 哽 rotation means the rotation. In addition, the so-called wedge-shaped system means the state where the two wheels are turned forward. The braking device with such a structure is equipped with dynamic force. Because it has no e-wheels (tires), the braking force is exerted through the brake drum = direct contact with the car. Therefore, for example, due to the contamination of the wheel surface when walking on a rainy day 〒The degree of wear of the brake mechanism and tire, and the air pressure of the wheel, etc. 4. The contact resistance of the wheel (the surface of the wheel changes), even the vehicle force. In addition, the brake is known in the brake drum. It is used in the braking mechanism during reverse rotation, for example, in the situation of ramping up and rotating after boarding, it can be used as a 4-wheel-to-vehicle function with the user's warrior, so he does not pay attention to the wheel direction; It is easy to push on the ramp and walk on the slope. The meaning is 'but can be tolerated'. There is no comparison with the conventional structure of the brake mechanism because it is built in the wheel; Necessary, the size of the wheel '0 is hidden in the brake drum, such as small and light. Therefore, the components of the brake f M ^ can be lifted and exposed to the outside, so (3) is In order to achieve the above-mentioned purpose, the appearance of wheels, chairs, etc. is aesthetically pleasing.

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Page 8 ^ 21129

In the vehicle device, g_.f force and ϋM may be a structure having a braking force selection mechanism. The 2 f L structure of the brake is converted into the following two modes, that is, the braking mechanism force is applied to the brake. Either the auxiliary brake mode on the drum or the brake release mode that invalidates the braking force of the brake. Either one of the modes can be used with or without braking force on the wheels. () In order to achieve the above purpose, the brake brake described in (3) above may have the following structure. That is, the brake mechanism is provided with a lock on a fixed shaft that can be rotatably provided on the inner side of the brake drum. The braking force selection mechanism is provided with a limiting piece for limiting the locking piece at a position away from the inner peripheral surface of the brake drum; and, in the auxiliary braking mode, liberating the locking piece limited state of the locking piece limiting arm, and In the brake release mode, the lock plate limitation state of the lock plate limitation arm is maintained. In the brake device thus constituted, the braking force t f or none that is applied to the wheels according to the braking force selection mechanism can be arbitrarily selected by the action conversion of the locking plate limiting arm. For example, by switching the braking force selection mechanism to assist the brakes and walking, even if the wheels are going to rotate backward, you can get safe walking. In addition, if the braking force selection mechanism is switched to the brake release mode, there is no braking even in the forward and reverse conditions, so the forward and reverse of the user's will will be 0, (5 ) In order to achieve the above purpose, the brake described in the above (4) may have the following structure, that is, the brake mechanism described above = a first brake mechanism is provided, which is connected to the reverse rotation of the brake drum, 検形 人 # On the inner peripheral surface of the brake drum, to brake the counter-rotation direction 1 —T. 'Js]

V. Description of the invention (6): Restrictions on rotation; '' — 丄 = rotation of the car drum plus internal: surface, so that the positive rotation side ^ fans the first braking mechanism ^ system, the braking force selection mechanism has only The mode of the car; the auxiliary force applied to the brake drum by the first force: the force acts on the brake; the braking force and the braking of the first braking mechanism of the second braking mechanism are the same as the brake locking mode Modal; and release the effective brake. Neither the braking force of the second braking mechanism described above (6) In order to achieve the above purpose, it may have the following structure. The braking device described in (5) above can be freely installed in the car, that is, the above In the state where the first brake mechanism has a rotatable lock plate, the positive rotation lock plate can be freely installed on the above-mentioned required fixed shaft, and the auxiliary rotation brake can be freely arranged in the reverse rotation with the first brake mechanism. ": === Locking plate limit arm; and lock for reverse rotation of upper plate limit arm = Η Simultaneously liberate the above lock in the above brake release mode, at the same time, the limited state: lock plate and lock plate for forward rotation "The reverse rotation of the limit-shaped green limit arm is equal to", "for example, except that it is easy to push the ramp to turn the wheel, so that even when the car is tilting == ㈡. In addition, the brake mechanism of '% wielding a variety of braking forces,彳 Brake rollers,

^ 1129 ^ 1129 5 Description of the invention (7) — = Turning lock plate, forward rotation lock plate, lock, and plate-limiting arms are used to construct f. It is used for small size and weight, and can be manufactured more cheaply. In addition, since each dagger is built in the brake drum, it can improve the appearance 1X1 shell / shape. (ΌIn order to achieve the above-mentioned purpose, the brake device I of the present invention is limited to the brake device of the rotation of the brake drum that rotates simultaneously with the rotation axis of the human wheel ^. The feature is that it has a second moving mechanism that acts on the brake described above. Roll 2U ^ 'to limit the rotation in two directions to the brake drum; and to limit the single direction to the brake drum: the inner peripheral surface of the rotating decay' is used only as a structure; in the brake device, "wheel The structure that only rotates in one direction restricts the brake rollers (wheels ^ = 入 日 守 寺 ^ brother 2 brake ascending lever to go 垆 #; τ A 々Shu Zhuan 'Therefore, even when driving on the ramp and the slope is away It can also move forward without going backwards. 夂 In addition, because of the built-in auxiliary brakes on the brake drums that are arranged on the wheels of the axles for ordinary walking, the potspots will propel the slopes and ramps and use them for climbing. The brakes are different, corresponding to the conventional situation where the striking mechanism of the wheel directly contacts the wheel to achieve small size and light weight: the inexpensive mechanism will not become larger and therefore can be touched to the wheel and manufactured. In addition, because there is no direct Connected, even on rainy days i ", the brake of the brake drum to obtain a stable braking force is obtained by the drum. π, in the state of tire wear, you can always get (8) in order to achieve the convergence of the car described in (7) above, The brake device of Ben Moming, combined with the above ..., can also be a modal converter.

C: \ 2D-CODE \ 91-O5 \ 91102598.ptd Page 11 V. Description of the invention (8) Composition 'The modal conversion mechanism f The above-mentioned dynamic mechanism acts on the above to change to the following modes, that is, complaints , The first brake mechanism and the above ^, 2 = the same as the brake release mode of the main brake mode, and the above-mentioned 91 moving mechanism as an auxiliary braking mode on the non-moving brake drum, f2 braking mechanism acts on The above-mentioned options act on the brakes of the brake drum: any-mode '... It is intended to be used in a brake device configured in this way. -A motion can be arbitrarily changed to = mode. . Therefore, at any time, the brake can be driven according to the will of the user. In addition, in the case where the brake release mode is selected, since the wheel has no braking effect in any of the front rotation and the rear rotation, the brisk movement by the third person can be easily completed. In addition, when the wheel rotates in one direction, such as 'on a slope or on a slope,' the selection assists the brake mode to prevent reverse rotation when the brake is applied to the reverse rotation of the wheel. Therefore, ramp advancement is easy. And walking uphill. (9) In order to achieve the above purpose, the brake device described in (8) above may be added, and the structure may be such that the first brake mechanism is rotatably provided inside the brake drum. A pair of brake shoes on a required fixed shaft to be supported; the above-mentioned second brake mechanism has a rotatably provided on the required fixed shaft and is given potential energy so as to contact the inner peripheral surface of the brake drum in a normal state. In addition, the mode conversion mechanism is provided with a lock plate restricting arm for limiting the position of the lock plate away from the inner peripheral surface of the brake drum; and an actuating cam connected to the main brake.

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521129 V. Explanation of the invention (ίο) The meaning of the wheel rotation: the meaning that the reverse rotation of the wheel means the rotation of the wheel in the reverse direction. In the brake Pei Zhichi constructed in this way, the wheel is restrained from turning in the reverse direction by braking on the wheels in the opposite direction = Therefore, even on a ramp and entering the market. On the other hand, if you go to the Japanese specialty, you won't go backwards and you can go forward. This will reduce the cost of manufacturing the rotating shaft of the wheel by braking the brake shoe in the opposite direction and rolling the brake on the opposite side. In order to obtain a small and light-weight, and can be obtained H 丨 2: Instead of contacting the wheel, but by friction with the brake drum a; At * =, even when walking on a rainy day and tire wear or empty m 彳Or! Two% 疋 gets a certain braking force. ii The above-mentioned purpose 'plus the brake contact described in the above (1 °) is provided at a position where the above-mentioned contact and inner peripheral surface of the drum are automatically locked by contacting the above-mentioned brake and brake closing shoes. Timely, brake device ★, if you push on the ramp and climb the hill until the car starts! When the brakes of the directional brake are braked, the lock n = M is released, and the automatic brake of the reverse brake shoe = ": holding the brake state", so 'the above purpose of preventing reverse rotation can be improved' plus the above ( 1 °) or ⑴), and the structure can be a structure with a mode conversion mechanism.

C: \ 2D-CODE \ 91-O5 \ 91102598.ptd Page 14 V. Description of the invention (11) The mode conversion mechanism restricts the brake drum by converting it into the main brake shoe: each mode, that is, by The limit of the above pair of reverse brake shoes: Description: G 3 car mode, with the above positive state, and the rotation of the above brake drum of the auxiliary brake shoe which reverses the rotation of the above two cars at the same time = : F main brake shoe and reverse brake ⑴) In order to achieve the braking force on the wheel. The structure of the device may be as follows: The brake described in the above (1 2) has a member and a brake shoe which have the brake shoe and the above 20%, that is, the inner peripheral surface of the brake drum of the mode conversion mechanism. Leave or press the brake shoe in the direction above to keep it on. When the main brake mode is reversed, the pair of main brake shoes will be pressed against the position of the inner peripheral surface of the brake drum in the auxiliary brake mode. State two general], on the inner peripheral surface of the brake drum, the inner peripheral surface of the brake drum, at the same time, the brake shoe in the reverse direction is pressed against the inner peripheral surface of the brake drum, and the pair of main brake shoes. Keeping away from the pair of main brake shoes and leaving the above, when the brake is released from the above mode, the inner peripheral surface of the two-way brake shoes is protected, and at the same time, the above (11) to (13) are maintained. ) In the brake device described in 栽 (10), 缂 ~ ", and soap-coating are for the position, size, and shape of the above-mentioned parts =: two-effect braking, revealing the composition, which can be easily obtained from the original The purpose of the ninth group's inventor '#Invented by such a structure The best implementation form | 1 is small in size and light in weight and low in cost. Hereinafter, the sun and moon state will be described in detail with reference to the drawings. Brother Ming implementation form of the brake device of the present invention MC: \ 2D-C0DE \ 91-05 \ 91102598. ptd pages 15 ~ 129

(First Embodiment) For the above display: the first embodiment of the brake device invented by the author (or this Λ :: II :: Η * 1 is generally called the drum brake * the brake drum 3 is rotated by the person at the same time, and the reverse rotation of the brake drum 3 The time change 3 is 0 on the inner periphery of the brake drum 3 ® 'The brake pads for generating braking force are on 敎: f ?: 0 are supported on the back plate 5 in the brake drum 3, and the lock pads 3 contact the car roll with 3 The lock plate spring 6 on the inner peripheral surface, and the lock plate limiting arm 7 which limits the lock plate 30 to the position on the inner peripheral surface of the brake drum are composed of the ", and the vehicle device 1 are equipped in a wheelchair. Each wheel 1001 is on top. The brake device shown in Figs. 3 and 4} is a right wheel equipped on a wheelchair, and in this installed state, it shows that the brake device is seen from the wheel side. In addition, in FIGS. 3 and 4, the illustration of the back plate 5 is omitted for the sake of understanding of the drawings. The brake drum 3 fixed on the wheel 100 is fixed to the wheel 1 as shown in FIG. 2. The hub 101, which is the center of rotation of the wheel 101, or the spokes 10, which extend radially from the hub 102, is set to the wheel 1 The rotation center of 1 is the same. In more detail, it is fixed to the wheel by a circular base plate portion 3a fixed to the wheel hub 02 or spokes 1003, and it is installed into the wheelchair 10 by the periphery of the base plate portion 3a. The state of 0 is constituted by a peripheral wall 3 b extending to the side of the wheelchair 100. The inner peripheral surface of the peripheral wall 3 b becomes a contact surface (friction surface) that contacts the lock piece 30. Therefore, the frame and wheels of the wheelchair 100 A back plate 5 is provided in 1 to 1 so as to concentrate almost all the main constituent parts constituting the brake device 1 to the brakes.

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521129 V. Description of the invention (13) Inside the drum 3. The back plate 5 is a plate having a diameter substantially the same as that of the brake drum 3, and the p portion is bent toward the brake drum 3 side so as to cover the brake drum 3. . Outside In addition, the center of the back plate 5 is provided with an axle insertion center. On the second day of the wheel, the axle is inserted into the axle insertion hole 5 and fixed to the frame of the wheel moo. In addition, the back plate 5: J5 5 2: The square is equipped with a fixing pin 5b.锁 片 3。 Lock sheet 3. It is rotatably supported on the inner side of the brake drum 3 by this fixing = fixing pin 5b. : On the outer 'back plate 5 and above the axle insertion hole 5a, the locking piece defines the rotation center of the arm 7, and the arm supports the shaft 5e. f There is a second state where the "axle insertion hole 5 & below" refers to the lower state in Figs. 3 and 4 where the brake device 1 is installed on the wheelchair 100, and the direction changes in accordance with the day. . In addition, "in the following description, the situation below and above is explained" means that the installation state of the wheelchair 100 is changed in a timely manner based on the drawings above and below. The female lock plate 30 is wedge-shaped and is connected to the inner peripheral surface of the brake drum 3. The brake mechanism that restricts the rotation of the brake drum is as follows: One end is provided with a lock plate restricting arm 7 The guide groove 31 is provided with a fixing hole 3 which becomes the rotation center of the locking piece 30, and the piece body 33, and a lining 34 provided on the contact surface of the locking piece Taiqiu + U ^. It is composed of two sticks ... It is the same as the inner peripheral surface 3b (+ quercus 仵). In addition, the lock is rotatably mounted on the fixing pin 5b provided on the lower part by the fixing hole 32 described above. . That is, the 'locking piece 30' is a structure having a center of rotation at the offset position of the central position of the back plate 5. Therefore, a locking piece spring 6 is provided below the fixing pin 5b to connect the locking piece 30.

Page 17 521129 V. Description of the Invention (14): Back II. As shown in FIG. 3, the lock plate spring 6 is a tension spiral bomb connected to the lock plate 2 at one end, and connected to the back plate 5 at the other end. The lining 34 is in contact with the inner surface of the brake drum. . The normal state at this time means that the state where no external force is acting on the lock plate 30 is supported together with the lock plate 30 in the lock plate ′ of the brake drum 3 which can rotate freely in the shape of a counter-dagger-shaped lever. , This control: the second J supports axis 5. And the guide pin 7b, which is inserted into the guide groove 31 of the lock piece 30 provided at the mi ′ end, and is connected to a mode conversion control lever (not shown). / 、 In the other two aspects, as shown in FIG. 3, the position 3 where the guide pin is inserted is inserted into the lock release position 31A of the lock sheet 3 in contact with the brake drum 3, and the guide pin 7b Close, in order to release (hold) the locking piece 2 30 away from the inner peripheral surface 3b of the brake drum with a chamfered piece, and define 31B 'by operating a mode change control / Λpiece / fixed position 7' (not shown) For the inner surface of the brake drum, the second lock is used: the fixed arm and the modal switch control lever and the lock plate limit the arm 7 f position. In addition, it is also possible to rotate the locking plate limiting arm 7 through the wire feed into the link mechanism. With regard to these shapes and that is, as long as the control rod body 7a can be extended to use only Renhe's system . This is so that the structure of the arm 7 is immediately rotated by the locking plate. More users have # 作 之 位 The above modal conversion control lever can switch the lock ^ = Selective rotation and position of the lock plate 30, it is the mode to release the car ...-The modal braking force selection Page 18 C: \ 2D-C0DE \ 9l-05 \ 91102598.ptd 521129

In the following, the operation method of each constituent part and device is involved. X, Fig. 3 is 1 5 牯 'I wish the above-mentioned brakes are clear. The brake action k in the lock plate 30, that is, the auxiliary brake mode is explained. In addition, Fig. 4 is used to explain when the sensitive car is released. The action diagram. Evening m, h, that is, the action diagram illustrating the constituent parts of the brake release mode. ≪ Auxiliary brake mode > The auxiliary brake mode is Yu Dengpo. Wheelchair i 〇〇 Reversing walking bar and slope / push 3 advance; the second temple is most suitable ... Λ The positional relationship of the guide pin 7b is formed at the position 3U of the release of the lock piece as shown in Figure 3. The wind is like a right lock Sheet 30 and guide miscellaneous 7 h 66 / Office g η / gap, lock sheet 30 is not affected by the guide pin 7: between the left and right direction to form 5b as the center of rotation "dagger: limit order: 'and can be The tension of the lock pin spring 6 mentioned above is only a dagger. In this state, the lock plate 30 is in the upper state. The state of tension, '㈣ contacting the inner peripheral surface 3b of the brake drum 3, 31 door 1 status, the lock plate 30 and the inner peripheral surface of the brake drum produce an automatic boosting effect (wedge effect surface braking effect. He) k and The automatic boosting effect of the person on the wheel 101 refers to the position 罟 I 女 # 姑 + 7, 丨 the meat from the center of rotation of the brake drum 3 /, 疋 ~, and the lock piece 6 is pressed against the sensitive The lining 34 (locking piece 30) of the inner peripheral surface 3b of the car 潦 steam ，, converges-; ..., the car rolls with 3 because of the rotation of the brake roll 3

521129

The wheel bow in direction A in the picture. The phenomenon of power. And the inner peripheral surface 3b of the brake drum 3, that is, the position of the rotation center of the lock piece 30 which is deviated from the fish, and the heart has the lock piece body 33 in rotation 34 ^ J: ·, The rotation of the car drum 3 'makes the supporting lining lining 34 strong between the fixed pin 5b and the lining 34, so as to form a wedge shape, in combination. The car drum 3 and the lining 34 are perimeters 4 (the lining 34 strongly presses against the inner surface 3b of the brake drum 3 and the shape is ′%). Set the dagger lock plate to restrict the arm to rotate to become the position of the auxiliary braking mode. Second Γ: The user does not need to pay attention to the reversal of the wheel Ke 1 00 and can move forward even when walking on the hill. The case of holding 片片 3Π ΐ Guangzheng rotating wheel 101 is still not effective as a force-maintaining force; the contact state is because of the above-mentioned self-contact: The force is to maintain the ΓΛΛ degree of the lock plate 30 and the brake drum 3. Tension, therefore, the frictional force acting on the feeling between the lock plate 30 and the brake roll is very small, and there is no obstacle to the rotation of the car. <Brake release mode> Next, the brake release mode will be described. . The braking mode is to freely advance and retreat the wheelchair. 〇The nuclear tragedy is to form the position relationship of the guide pin η by operating a mode conversion control lever (not shown). 31B.

521129 V. Description of the invention (17) If the positional relationship between the lock plate 30 and the guide pin 7b is formed at the lock plate limit position 3 1 B, the guide pin 7 b is in a state of contact with the peripheral edge of the guide groove 31, and the lock plate 30 Restricted by the guide pin 7b, it is supported at a position away from the inner peripheral wall of the brake drum 3. In addition, although a certain degree of gap C is formed at the lock plate limiting position 3 丨 B and the left side of the guide pin 7b, the lock plate 3 is forced in the direction of R in the figure by the lock plate spring yellow 6. Even if this The state remains the same as that of the lock plate 30. Therefore, in the brake release mode, a gap is formed between the lining 34 provided on the lock plate 30 and the inner peripheral surface 3 b of the brake drum 3, # 尬, dagger ^ D, regardless of the brake The rotation of the drum 3 and the reverse rotation will not apply the brake to the wheel 101. This makes it possible for the wheelchair-bound river to advance and retreat. The second embodiment of the present invention t η constructed in such a way is equipped with the brake drum 3 when the rollers are rotated in the reverse direction of 3, so that the vehicle can move forward even when driving on a slope or when the locking piece 30 with A force is reversed. In addition, the "plate-limiting arm 7" which does not have the braking force of the wheelchair 100 that acts on the wheels 101 can be arbitrarily selected to go backwards. S ..., 'therefore' can basically constitute the brake device 丨 as in the brake drum 3, so it can be made d] to form parts, are all built-in In addition, the friction surface that exerts the braking force due to t, Also 1 star brake device 1. 3b, no matter when walking on a rainy day or when the car is on the inner peripheral surface of the brake drum 3, a stable braking force p (tire) can be obtained and the air pressure is reduced. In the first embodiment described above, the timing is explained. There may be a case where the braking force is used for climbing the hill, and the brake drum 3 is rotated in the reverse direction. However,

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521129 V. Description of the invention (18) In the present invention, in addition to the above-mentioned climbing brake, a parking brake may be provided. Also, the parking brake is a brake for surely parking a wheelchair on a sloping ground or the like. (Second Embodiment) Figs. 6 to 9 show a second embodiment of the brake device according to the present invention. The brake device shown in this second embodiment is a brake device equipped with a hill-climbing brake and a parking brake, and is equipped on the right wheel of the above-mentioned wheelchair 1Q〇. In this installed state, it is displayed from the wheel side. Brake device. In addition, the illustration of the back plate 5 is omitted for easy understanding of the drawings. In addition, this basic structure is equivalent to the carriage device 1 shown in the first embodiment. Therefore, the same component numbers are assigned to the same parts as shown in FIG. 6. In addition to parking brakes, parking is also provided. Brake wear 2 of the brake is equipped with reverse rotation that exerts the braking force during the reverse rotation of the brake drum 3 &amp; = 40; in a state opposite to the reverse rotation lock plate 40, fixed: extended 2 freely rotatable brake drum When the positive rotation of 3, the braking force is exerted = the turning lock plate 5. And the lock piece 40 for reverse rotation and the force = the lock piece limit that is limited to a position away from the inner peripheral surface 3b of the brake drum = then, the arm 17 is limited by operating the lock piece, that is, only in the wheelchair 1 〇 ○ Brake tragedy when going backwards. The double-assisted locking mode of the wheelchair to advance and retreat before 100, and the auxiliary brake mode of the vehicle before the wheelchair is to be used to assist and retreat. In either direction

521129 Jade and invention description (19) Brake release mode without brake action. In other words, in the brake device shown in the second embodiment, the brake roll 7 is provided with two lock plates 40 and 50. When traveling on the slope, it uses reverse rotation ^ $ 40 for the wheel 1 0 1 The rotation is restricted afterwards, and the forward rotation and backward rotation of the wheel J 0 are restricted in both directions by using the forward rotation lock plate 50 and the reverse rotation lock plate 40 during parking. First, a description will be given of the lock piece 40 for reverse rotation. The reverse rotation lock plate 40 ′ used in the second embodiment has substantially the same function and structure as the lock plate 30 shown in the first embodiment described above, and it has an automatic boosting effect when the brake drum 3 is reversely rotated ^ The braking force generated. The difference between the lock pieces 30 described in the structure of the x-disk 1 embodiment is the difference between the guide groove 41 and the brother. &amp; The guide groove 41 provided on the lock plate 40 for reverse rotation has a first release position 41A as shown in FIG. 6, and the guide pin 17b is located away from the edge of the guide groove so as to maintain the lock plate for reverse rotation The contact state J between α and α in the brake drum is as shown in a limited position 41B shown in FIG. 7. The guide pin 触 surface touches the peripheral edge of the guide groove 41 so that the lock plate 40 for reverse rotation is restricted from leaving the inner peripheral surface of the brake drum. State of ceremony; and as shown in FIG. 8: holding position 41C, the same as the above-mentioned magic release position 4U, the contact state of the cylinder 3 and the counter-rotating lock plate 40; relative operation can be performed by limiting: two f 17 Locking plate 40 for reverse rotation of the inner peripheral surface of the brake drum. The position corresponding to the locking plate limiting arm 17 will be described in detail later.

521129 V. Description of the invention (20) 1 The function and structure of the lock piece 3 shown in the first embodiment above are substantially the same. However, since the positional relationship with the reverse rotation lock plate 40 is opposite, the direction of the automatic boosting effect is also reversed. That is, when the brake drum 3 is rotating normally, an automatic boosting effect is exhibited between the brake drum 3 and the braking force in the rotation direction before the wheel 101. Also, similar to the lock piece 40 for reverse rotation, the shapes of the lock piece 30 and the guide groove 5 i shown in the above-mentioned} embodiment are different. In the first embodiment described above, the lock plate spring 6 connecting the lock plate 30 and the back plate 5 is used. In this embodiment, the lock plate 0 and the square plate for reverse rotation are connected to each other, and the lock plate 5 is used. . Therefore, each lock piece expands the rotation center of the fixing pin ^ as $ common to the outside. Under the contact state of each lock piece 40, 50 and the brake roll 3, corresponding to Xiangzhen \ τ 0 ^ Mumen The rotation of the brake drum 3 in the direction presents an automatic boosting effect when rotating. The direction of the forward rotation lock plate 50 is clear and ancient, and the thickness is 51. The first limited position 51A shown in FIG. 6 is related to the position relationship of the above-mentioned reverse rotation lock plate 4 pin 17b. #stop. Λ ± When the door screen 41 and V inner ding ~ the coin i liberation position 41 a, the Zheng Jing sickle error u 50 is limited to the position away from the inner moon surface of the brake drum 3 ^ ^ ^ person door ^ inner peripheral surface position; As shown in Fig. 7, the second: ""; In the above-mentioned reverse rotation lock plate 40, the guides, 冓 41, and 50 are defined to be away from the inner periphery of the brake drum 3, and the release position 51C of the lock plate for equal square rotation is tied to The above reverse rotation, = and the positional relationship of the guide pin 17b shown in FIG. 8 is 2M,, when the guide groove 41 and 丨 your brother 2 release position 41c, give the last name lock plate 50 and the brake roller 3 的 接 鳏 ##, quasi-positive positive rotation contact sadness, by choosing a slightly more 1 7 can be relative to the brake drum inner moon operation lock plate limit # # door inner peripheral surface 3b positive rotation lock plate Location of 50% C: \ 2D-GODE \ 91-05 \ 91102598.ptd Page 24 521129 V. Description of the invention (21) Positioning. It can also form a locking piece-defining arm j 7 for the positioning of each locking piece 40 and 50, respectively, with a limiting arm body 17d, and a pair of guide grooves 41 inserted into each locking piece 50 at both ends. The guide pins 17a, 17b of 51, 51 are rotatably supported by the back plate 5 at the center; and the control lever 7c is operated by using the arm support shaft 5c as the rotation center so as to swing to define the arm body 17d. Therefore, the correspondence between the guide grooves 41 and 51 of each of the lock pieces 40 and 50 and the lock piece-defining arm 17 is to use the arm support shaft 5 c as the center to make the reverse rotation lock piece 4 0 of the first forward rotation lock piece 50. The first limited position 51A corresponds to the auxiliary soap for sadness, and the limited position 4lB of the reverse rotation lock plate 40 corresponds to the second limited position 51β of the positive spinner lock plate 50 (brake release mode). The switch lock plate 4 0 No. 2 Μ disguise amr 4 τ m $ Fang 疋 f 51 "Considerable, ^ ί Set and 5 1 C corresponding to the release position of the locking paddle 50 (brake lock modal). You can borrow the lock at ί The piece-limiting arm 17 'can be converted into the braking effect of various modes. In view of the above, FIG. 6 is a diagram for explaining the various modes of the auxiliary braking mode. FIG. ? Action Figure 8 is the action diagram of the components of the 1 Lc * ,, and the car release mode. 08 is the structure of the 5 brother brake lock mode <auxiliary brake mode> Ding Yi action diagram The second braking mode and the second braking mode shown in the second embodiment are the most suitable when climbing uphill and advancing on the slope. Modal. When choosing car = wheel% 10. The guide grooves 41, 51 and the lock plate limiting arm 17 correspond to each of the cavities i d in the library, and the lock plate limit can be selected.

C: \ 2D-C0DE \ 91-05 \ 91102598.ptd Page 25 521129 V. Description of the invention (22) Fix the arm so that it can be used as the first release position 41A in the counter-rotating locking plate 40, and turn the lock in the square. The sheet 50 becomes the first limited position 518. Straight =, in the brake assist mode, only the reverse rotation lock plate ‘4 〇 contacts the inner periphery S3b of the brake ^ 衮 wen3. Therefore, it becomes a mechanism that makes the braking force generated by the automatic boosting effect act on the wheels when the reverse rotation of the brake drum 3 is 1U: and when the wheelchair 100 is reversed. n &lt; Brake release mode &gt; The brake release mode shown in the second embodiment is a wheelchair freely Π) 〇 The forward and reverse travels are the same. = When the vehicle is released, each guide groove 41, 51 Walk = ^ lock "into the arm 17 'so that it is in the reverse rotation position 51B 疋 position 41B, in the forward rotation lock plate 50 to become the second limit off = two turns Λ lock ^ on the wheel 1G1. ^ ^ System The power does not work. The car is locked: the forward and backward movements of the 10-degree V chair can be formed. It is true that the live mode is most suitable for tilting and sweeping. Limiting the arm 2 = the corresponding of the fixed arm 17 is optional; ;; lock; 41C, 扃 X makes it the second lock plate 40 for reverse rotation / 1C for forward rotation • piece 5. Become the release position 5K Qiaodi 2 release position J live shell film 4 0 and positive Spin

9ll〇2598.ptd Page 26 Guide groove 41, 5 1 When choosing the brake lock mode, each of them will hunt for this in the brake lock mode, due to the description of the reverse rotation invention (23) Both sides of the transfer lock plate 50 are in contact with the sensitive-the reverse rotation of the drum 3 and the positive Rotary roll is the same as the inner peripheral surface 3b of 3, and the braking force of the brakes acts on the wheels. The direction of the automatic boosting effect is reversed in both directions. None. As such, the second embodiment of the present invention is in a parking state. The mode can easily reach the ramp up. 7: The auxiliary braking mode can be used to tilt away or tilt the plate. The brake can be unlocked by selecting the brake mode. As a result, the brake device is generally constructed in the brake drum 3, so the main component parts can be manufactured, all of which are built-in 11. In addition, the braking device's peripheral surface 3b, which exerts the friction of the braking force into a surface amount of m, can obtain stable air pressure reduction of the wheels (tires) regardless of the conditions where the brake drum 3 is walking on a rainy day. Use Erlang ,? The auxiliary brake modal can be used as a vehicle for climbing hills, but it can also be used for wheelchairs: 勹 5 夂 ..., early construction. In order to use the braking force when moving forward: ^ The structure of the power can be achieved when the forward movement is necessary to brake the dagger lock arm. Exposure to a sloping ground, etc ... As an advantage of a sloping ground, the advantages of sloping grounds include the advantages of a wheel with a large outer diameter if it is concave on the road ^ It becomes very easy to walk. π $ (Third Embodiment) Figs. 10 to 18 show a third embodiment of the braking device of the present invention

C: \ 2D-CODE \ 91-05 \ 91102598.ptd 521129 5. For the description of the invention (24), FIG. 10 shows a wheelchair 201 suitable for the brake device 21 of the third embodiment of the present invention. The brake device 21 of the third embodiment is also a brake device generally referred to as a drum brake. The brake roller 3 rotates at the same time as the wheel 100 and contacts the inner peripheral surface of the brake roller 3 to generate braking force. The brake shoe 2 2 and the back plate 2 5 which specifically supports the brake shoe 3 in the brake drum 3 are provided on the two wheels 101 and 101 of the wheelchair 100. As shown in FIG. 2, the brake drum 3 provided on the wheel 101 is fixed to the wheel hub 102 which is the center of rotation of the wheel 101, or the spoke 103 extending radially from the wheel hub 101. The rotation center is set to coincide with the rotation center of the wheel 101. In more detail, it is a peripheral wall extending to the side of the wheelchair 201 from a circle fixed to the wheel hub 102 or spokes 103 to the base plate portion 3a, and mounted on the wheelchair 201 from the periphery of the base plate portion 仏. The inner peripheral surface of the peripheral wall becomes a contact surface that contacts the brake shoe 22.隹 t = A back plate 25 is provided between the frame of the chair 201 and the wheel 101 so as to fit inside. There are the main component parts that constitute the brake set 21. The west part is placed on the brake plate 25-1. The center of the rear plate 25 is provided with an axle insertion hole 25a. The axle (rotation axis) penetrates through the axle insertion hole 25a and fixes the back plate 25 to the frame. &Quot; As the main component part provided on the back plate 25, the inner peripheral surface 3b of the car drum 3 is on the brake drum 3 = direction-restricted rotation-on the brake shoes 22, 22; the two sides contacting the brake rotation 3b 'on When the brake drum 3 rotates in the reverse direction, the lock piece 26 restricts the rotation in the circumferential direction of the brake ^; the lock piece 26 is restricted to leave; ^ car = turn inside

521129 V. Description of the invention (25)-_ Circumferential surface 3b = position-defining locking plate arm 27; abut the pair of brake shoes 22 against the inner peripheral surface 3b of the brake roll, and release the locking plate-defining arm at the same time The limit of 2 7 on the lock plate 2 6 is the actuating cam 2 8 that makes the braking force of the lock plate 2 6 work; and the force for forcing the above-mentioned various parts to the desired direction with various impeachments 61, 62, 63, etc. . As shown in FIG. 13, a pair of brake shoes 22 and 22 are formed into a bow-shaped lock plate body 23 ′, one end of which has a contact point 23 &amp; Rotation center fixing hole 23b; and the lining 24 provided on the contact surface of the lock plate body 23 and the inner peripheral surface 3b of the brake drum. 'Each brake shoe 22 is rotatable through the fixing hole 23b. Mounted on the fixing pin 65 provided near the lower portion of the back plate 25. That is, 'the brake shoes 2 2 are connected to each other via the fixed pin 65, and at the same time, when the actuating cam 28 is rotated, the contact portion 2a is used as the force point, and the fixed pin 65 is used as the fulcrum. Each lining 24 is pressed against the braking force of the brake drum inner peripheral surface 3b, and functions as a first brake mechanism that restricts rotation of the brake drum 3 in both directions. In addition, the opposite free ends of the brake shoes 22 are connected to each other by a return spring 61, and each brake shoe 22 is maintained at a position away from the inner peripheral surface 3b of the brake drum in a normal state. The normal state referred to here means that no external force is applied to the locked state. ^ On the other hand, as shown in FIG. 13, the lock piece 26 that generates braking force when the brake drum 3 is rotated in the reverse direction has a lock piece body 26 a extending from the above-mentioned fixing pin 65 to the inner peripheral surface 3 b of the brake drum; The lining piece 26b is mounted on the end of the lock plate body 26a to form a contact surface that makes contact with the inner peripheral surface of the brake drum.

521129 V. Description of the invention (26) i car =: Zhou Suo shot * 62 'is forced under normal conditions and touches the whole. J = 26a is set to be rotatable with respect to the fixed pin "...: is coming from the brake drum 3 to the fixed pin 65 Slightly on the normal line ^ Automatic boosting occurs between the car drums 3 I ^ J φ] Μ # M3 ^ ^ # ^ # 0ij% 1 fiJ ^ month t * ° The cylinder is restricted by the lock plate restricting arm 27 to leave the brake = As shown in FIG. 13, the lock plate limiting arm 27 is prepared in a slightly l-shaped shape: 66, and one end of the lock plate has a contact portion "a" that contacts the actuating cam 28, and the tool has contact with the lock plate 26 to support the lock. The locking piece supporting pin 6 of the piece 26, the locking piece defining spring 63, imparts potential energy to the arm body so as to support the locking piece 26 away from the inner peripheral surface of the brake drum 3; and the piece limiting pin 67 performs The positioning of the arm body 66 empowered by the impeachment 63 is limited by the locking piece. Then, the arm body 66 is rotatably mounted on the arm-fixing pin 69 provided on the lock plate provided above the back plate holder. The operation of the brake shoe 22, the lock piece 26, and the lock piece restricting arm 27 will be described in detail later. The actuating cam 28, which is in contact with the brake shoe 22 and the lock plate restricting arm 27, is formed in a substantially rectangular plate shape, and is connected to the upper part of the back plate 25 by an actuating control lever 71 rotatably provided behind the back plate 25. That is, if the rocking motion is controlled by C: \ 2D-C0DE \ 9l-05 \ 9H02598.ptd page 30 521129 V. Description of the invention (27) = The movement of the control lever 71 follows the work, and the actuation cam 28 also On the one hand, as shown in Figs. 10 and u, the control lever η is "connected to the frame ^ tie bar U0 of the wheelchair 201 by the wire 11 1 and is controlled by the brake _". It is a mechanism that shakes by the operation of the two car no system. That is, the operation of the control lever no to rotate the actuating cam 28 is controlled by the brake control. As shown in FIG. 11, the brake control lever 11 {) is driven by the bottom plate 112 and the bottom plate 112 on the frame 104. The lever support frame 113 is extended below, and is located on the brake control ",, car ^ # a #„ 114, #;-4 4ΓΛ4 / The lever body 11 5 on the pin 11 4 constitutes 又 cup support? The mounting position of the brake lever 11 of the frame 104 is μ, but, as shown in FIG. 10, it is better to set it at the handlebar part i i 6 of 4 sigh 201. ^ USER 今 易 #made wheelchair guide A: = 12 = no, the base plate 11 2 is formed with a trough transition groove which becomes the v-direction groove of the lever body 11 5 丨 2a, and the control state transition groove 112 a The support pin 114 installed on the brake lever = ^ ^ Figure 1 j, the mold complaint conversion groove 丨 丨 2 a is divided into two directions in the wheelchair 2 〇1 and the reverse direction by the introduction of the day guard at 枓 2 The meaning of 0 1 and the warrior 4: ^…, the master brake mode that is used at first, the brake release mode that does not apply the dance function in any direction when hitting Λ backwards, and on the wheel? η1 夕 办 丨 7 # a ..., early-acting auxiliary braking mode. The brakes are automatically applied when the wheel pine 201 is reversed. Tian and S 'become by supporting the brake lever support frame 1 1 3 facing ί.' Page 31 C: \ 2D-CODE \ 91-O5 \ 91102598.ptd 521129 V. Description of the invention (28) The constitution of the transition inducing part ii 3a formed in the mode conversion groove 11 2a to restrict the movement of the control body 1 1 5. In addition, although it will be described in detail later, in the main brake mode, the lever body 115 is slid in a section of an arrow a in FIG. 2. In addition, in the brake release mode, at point B in FIG. 12, the transition inducing portion 113a is elastically coupled to the recess 115a of the lever body 115, thereby restraining the lever body. In addition, in the auxiliary braking mode, at point C in Fig. 12, the transition inducing portion 113 &amp; is elastically coupled to the recessed portion 丨 5a of the 〃 lever body 1 丨 5 to thereby restrain the lever body 115. With this, the position of the lever body 丨 丨 5 can be switched to the fixed position of each mode to switch the braking effect arbitrarily. ~ In addition, a return spring 118 is provided at an end portion of the operation guard 71 connected to the wire η through the lever body 115. The return spring 118 is a compression coil spring provided between the return spring support arm 25b extending from the back plate 25 and the control lever 71 in a pressurized state. The return spring 118 is pushed away from the return spring support arm ^ to force the control lever 71 to move away. direction. In this state of the master braking mode, the lever body is within the range of arrow A in Figure 2 and supports the state of being elastically biased to the brake side. The dry liver is swollen, and the movement of the above-mentioned components will be described with reference to Figs. 13 to 18. Fig. 13 is an explanatory diagram of the operation state of the main brake mode. In addition, it is a diagram showing the positions of the brake levers in the main brake mode. In the same manner, FIG. 15 and FIG. 16 are diagrams for explaining the components of the brake release mode, and FIG. 17 and FIG. 18 are diagrams for explaining the auxiliary brake mode. Text &lt; Master Brake Mode &gt; ί C: \ 2D-CODE \ 91-05 \ 91102598.ptd Page 32 521129 V. Description of Invention (29) First, the master brake mode will be described. The so-called main brake mode is the mode in which the user can apply the brake arbitrarily in the direction before the wheelchair 201, and the braking force is generated by ^; =. 9 The two brake shoes 22 = Yes, it becomes the following structure. _, When braking in the main brake mode, if the lever body 1 is pressed in the direction of the arrow A in FIG. 14, the brake is applied, and if it is removed, When it is pressed against the lever body 丨 5, J is forced by the returning force of the return spring 118 to force the lever body 115 to return to the direction opposite to the arrow A in the force plate 14 to release the brake. / 、 Figure The operation of each component of the main brake mode is as follows. In the case where a braking action is to be performed and the pressure control body 115 is pressed in the direction of arrow A in FIG. 4 ′, the operating cam 28 rotates in the direction of arrow N in FIG. I 3, and the contact point of the dry tile 22 and the operating cam 28 becomes At the point of force, the fixing pin 65 / point, the lining 24 of the brake shoe 22 becomes the action point, and the action point is pressed against the inner peripheral surface of the brake drum 3 to perform braking. On the other hand, if the lever body 115 returns to the opposite side in the direction of the arrow in FIG. 14 and the actuating cam 28 returns to the arrow in FIG. 13, 2 2 leaves the inner peripheral surface 3 b of the brake drum 3 and thus Free the brakes. Also, as shown in FIG. 13, the position of the lock plate limiting arm 27 in the above-mentioned main brake mode is the state in which the lock plate limiting arm 27 is held by the lock plate limiting spring 63 by the lock plate limiting spring 63. Therefore, the lock piece 26 is held (limited) at the position of the inner peripheral surface 3 b of the brake drum 3 by the lock piece limiting arm 27. Sweat, because the rotation range of the actuating cam 28 is limited to the main brake mode

C: \ 2D-C0DE \ 91-05 \ 91102598.ptd p.33 521129, description of invention (30) The mode conversion groove 112 is used within the range) 'Therefore' the cam 28 is actuated even in the direction shown in Figure f. A: : The fan lock arm 27 will not turn in the direction of the bay by actuating the convex &, so that in the state of the main brake mode, the lock blade 2 β 限定 is limited. ^ 26 "The arm is always limited by the lock plate 27 &lt; Brake release mode &gt; Next, 'Brake release mode is described. Except mode is a mode in which braking does not work in either direction when the wheelchair 201 advances and reverses. The brake shoe 22 and the lock piece 2: as shown by the square 15 always leave the position of the inner peripheral surface of the brake drum. The movement of the components shown in the figure is as follows. Yuxian, the user operates the control lever body 丨丨 5 Moved to the β point in Fig. 16 and the main sensitive car is put on the body 11 5 to release the brake.…, 彳, the heart is changed to, so, when the lever body 115 is changed to the brake release mode, wheel 28 It is fixed in a neutral state that does not rotate (tilt) at all. The wide projections 22 are placed on these brake shoes ㈡, 22 reset springs 61 =, and are kept away from the inner peripheral surface of the brake drum. The position of the brake pads 2 and 6 is the same as that of the main brake mode, so it has no effect. J &lt; Only brakes also &lt; auxiliary brake mode &gt; The auxiliary braking mode is when the wheelchair 201 is reversed, that is, the wheel 101

V. Description of the invention (31) Sensitivity detection occurs automatically when reverse rotation ~ This braking force is displayed. In the mode of the car action, the auxiliary brake mode is generated by the above-mentioned lock plate 26. It is recognized that the body 115 to FIG. 18 (:%: When using the brake, 'first' slide the control lever, etc., and the wheel 101 becomes In this state, if the user generates a brake on the slope near the user; the brother 'does not follow the user ’s willingness to assist the brake modal. If he wants to perform the action of c, it is composed as At point c, actuate the cam 28 # for the car and slide the lever body 115 to FIG. 18. The cam 28 rises upward and rotates in the wrong direction toward the front of FIG. 17, and the arm is restricted by the locking plate by the actuating arm 27. = The end point of the fixed arm 27. Therefore, the lock piece restricts the rotation in the L direction. At @, the pin 69 is the restricted state where the rotation center is toward the arrow piece 26 in FIG. 17. The support piece 66b of the shim piece leaves the lock piece 26 to release it. lock

On the other hand, by the wrong H, the tension of the clip spring * 62; the limit state of f7 is released by the lock tab 26. When the force comes into contact with the inner peripheral surface 3 b of the brake drum 3, the inner peripheral surface 3br of the car drum 3 is reversed with the wheelchair 2 n ^ γ i and the like by the "automatic boost effect". = i), the lock piece 26 is constituted by the user who rotates the square wire along the forward direction, /. In addition, the wheelchair 201 also advances the brake drum 3 along the wheel 101, and turns from the inner peripheral surface 3 b of the drum /: J, so the lock plate ㈣ and the auxiliary brake can not: Make it possible. Under the circumstances, the lock plate 26 and the car Yuji &amp; Tian make the wheel 101 rotate forward, and the contact state of the reduced inner peripheral surface 3b is still triggered by the lock plate.

521129 V. Description of the invention (32) The spring 62 is maintained. However, during the positive rotation of the fish, the positive rotation is not performed. In addition, the tension brake drum 3 of the paddle spring 62 exerts a braking effect. The pressure is so strong that it is held in contact with the lock piece 26 only. The rotation of the wheel 101 will not feel any hindrance. When the control is controlled, the cup body 115 is switched to other modes, and the fixed arm 27 is rotated by the machine in the head direction. Therefore, the lock plate Restriction of wearing Z 岸 Anri by σ on the lock plate service order 9 7 L person A 丨 * ^ η ^ ^ ^ The lock plate on the month limit # 27 restricts the tension of the spring 63 to return to the original position, so that Miscellaneous μ 9 β ^ P „# a * ^ Makes the lock plate 26 into a restricted state again. With this, I7 makes a square; there is no braking when the wheel 101 is rotated in the reverse direction (fourth embodiment) Fig. 19 to Fig. 24 The fourth embodiment of the brake device of the present invention is shown. The brake device 81 of the fourth embodiment is also commonly referred to as a brake device. The brake device 81 is a replacement of the brake device 21 of the third embodiment. It is equipped on the wheel 101 of the wheelchair 201 shown in Fig. 10. Specifically, "the brake device 81 is provided with a brake drum 3 that rotates simultaneously with the wheel 101 shown in Figs. 10 and 2 and contacts One of the main brake shoes, which generates braking force on the inner surface of the brake drum 3, is composed of an orientation piece 14 and a moving piece 15. In addition, a backing plate ⑽ etc. supporting the orientation piece 14 and the like in the brake drum 3 is also included in the structure of the brake device 81, and is provided in two with respect to the wheelchair 201.

C: \ 2D-C0DE \ 91-05 \ 91102598.ptd Page 36

521129 V. Description of the invention (33) As shown in FIG. 2, the brake drum 3 provided on the wheel 1 〇1 is fixed to the wheel hub 102 which becomes the center of rotation of the wheel 101, or is radiated from the wheel hub 102 The center of rotation of the spokes 103 extending like a circle is set to coincide with the center of rotation of the wheel 101. In more detail, the brake drum 3 is extended to the wheelchair 201 side by a circular base plate portion 3a fixed to the wheel hub 102 or the spoke 103, and mounted on the wheelchair 201 from the periphery of the base plate portion 3a. The inner peripheral surface of the peripheral wall 3b is a contact surface (sliding friction surface) that contacts the orientation piece 14 and the driven piece 15. Then, a back plate 83 is provided between the frame 104 and the wheel 100 of the wheelchair 201 so that almost all the main components constituting the brake device 81 are arranged inside the brake drum 3. The center of the back plate 83 is provided with an axle insertion hole 83a. As for the female I% of the back plate, the back plate μ is fixed to the frame 104 while the axle (rotation shaft) of the wheel is inserted through the axle 83a. The component parts of the installed brake device 81 include a contacting wall-ten idle tiles that restrict the rotation of the main door tile 3 in the forward and reverse rotation directions, that is, the orientation plate 14 and the driven plate 15. In addition, the back plate 83 is also provided on the brake roller peripheral wall to restrict the sensitive car; the turn is turned to the lock plate (reverse brake shoe) μ, and the back plate 83 is also provided with Forced to force against the cleat return spring 86. The shim 84 is separated from the peripheral wall 3b. The back plate 83 is provided with an actuating cam that controls the braking force of the brake unit 81.

521129 V. Description of Invention CM) ^ 1 (Expansion mechanism) 8 8. The above-mentioned actuating cam 88 expands the orientation piece 14 and the driven piece to press the peripheral wall 3b, thereby generating a braking force caused by the orientation piece 14 and the driven piece 15 to 4 15. In addition, the actuating cam 88 opposes the biasing force of the lock plate reset spring 86 and presses the plate 84 against the peripheral wall 3b, thereby generating a braking force caused by pressing the lock plate 84. In addition, a fixing pin 89 is provided on the back plate 83 to rotatably fix the fixed piece 14, the driven piece 15, and the locking piece 84. In addition, a door tile return spring 90, etc., is provided on the back plate 83 2 in a direction to force the orientation piece 14 and the driven piece 15 away from the peripheral wall 3b. The orientation piece 14 is formed into an arcuate shape. As shown in FIG. 19, one end has an orientation piece abutment portion Ha abutting on the actuating cam 88. Then, the other woman of the alignment sheet η has an alignment sheet fixing hole ^ 4b which becomes the rotation center of the alignment sheet 14. Moreover, the orientation sheet 14 has an orientation sheet liner which can contact the peripheral wall 3b. 14c. Then, the orientation piece 14 is fitted into the orientation piece fixing hole Ub by using a fixing pin 89 provided slightly below the back plate 中 in Fig. 19 so that the fixing pin 89 can be freely rotated. The driving force is the same as the orientation piece 14 described above, and is formed into an arcuate shape, as shown in FIG. 19, from :: J has m, and the driven piece abutment portion 15a abutted by the wheel 88. Follower piece fixing hole 15b. One end has a center of rotation that becomes the driven piece 15. In addition, the driven piece 15 has a potable surface of ± 15e. Seven driven pad linings in contact with I ^ H i R # / and Zhou i3b are moved to the driven plate ^ 〇Τ meniscus using the fixing pin 89 located slightly below the back handle in FIG. 19 The slightly stiff piece of 83 fixes the hole 1 5 b, and it can be set to ill__circle

Page 38 C: \ 2D-CODE \ 91-05 \ 9ll02598.ptd 521129 V. Description of the invention (35) The fixed pin 8 9 is used as the center of rotation for free rotation. Here, the installation positions of the orienting piece 14 and the driven piece 15 are observed. Those that are not the same shape member are set to pass through the center of the axle inserted into the brake drum 3 and the center of the shaft of the fixing pin 89. The two-point straight line is approximately a line-symmetrical position. Further, the orientation sheet 14 and the driven sheet 15 are provided with the orientation sheet liner i 4c and the driven sheet liner 15c facing the peripheral wall 3b, respectively. That is, the orientation piece 14 and the driven piece 15 are connected to each other so as to be rotatable with each other by a fixing pin 89. Therefore, during the rotation of the actuating cam 88, the orientation piece top contact portion 14a and the driven piece top contact portion 15a are used as the force points, and the fixing pin 8g is used as a fulcrum, and the orientation piece liner 14c and the driven piece The lining 15c becomes the point of action. Therefore, by pressing the orientation sheet lining 14c and the driven sheet lining 15C against the peripheral wall 3b, a braking force can be generated. In addition, the orientation piece 14 and the driven piece 15 are connected by a brake shoe return spring 90, which normally keeps the orientation piece lining i 4C and the driven piece lining J 5c away from the peripheral wall 3b. position. What is referred to here is usually the state in which there is no external force acting on the -direction piece 14 and the follower piece 15. On the other hand, when the brake drum 3 is rotated in the reverse direction, a braking force plate 84 appears, which extends from the fixing pin 89 toward the peripheral wall. 1. The lock plate St has a lock plate lining 92 that can be in contact with the lock plate 84 and the peripheral wall 3b, and normally forces the lock plate 8 4 away from the fish bow arch η 矣 〇 u ^ 86. 2. The lock piece 84 is used to open the peripheral wall flutter. The lock piece resets the shell. In addition, as shown in FIG. 19, the lock piece abuts the lock piece abutting portion 84a. In addition, the lock piece 84 is another one, and one end and the other are moved into a convex wheel.

91102598.ptd 521129 V. Description of the invention (36) The lock plate fixing hole 84b at the rotation center of the lock plate 84. Therefore, the two locking pieces 84 are the same as the above-mentioned orientation pieces i 4 and driven pieces i 5, and are rotatably provided on the fixing pins 89 through the locking piece fixing holes 84 b. The straight line distance from the lock piece fixing hole 84b of the lock 1 84 to the lock piece lining 92 is longer than the shortest straight line distance between the lock piece fixing hole 8 4 b and the peripheral wall 3 b. In addition, the lock plate 84 is a contact surface of the brake drum 3, that is, an open position of the lining 9 2 with respect to the brake drum 3, which is set at an open position of the follower lining 15c and an actuating cam It is set at a position deviating from the area without automatic locking as shown in Figure ^. In addition, the moving piece lining 15c is set at the position without automatic locking as shown in FIG. 22, and the facing piece lining 14c is the same). Fish in Figure 22, Figure 23 and Figure 24: 5 The automatic locking area is determined by the radius r of the brake drum 3, which is inserted into the center of the axle and the fixing pin 衮 in the same 3 ^ friction coefficient / z Got it. ^^ and the plate 84 is installed so that the lock plate outline 92 is located between the driven plate lining 15 and the limit, so when the wheel is reversely rotated, the lock plate 84 can be rotated in the direction of rotation, and at the same time, the The design configuration of the lock plate: In addition, as shown in FIG. 23, the lock plate lining 92 has a fixed hole 8 4 h 5 wq k aa.

Read "The shortest straight U-piece lining from 4b to the peripheral wall 3b"> 9 2 of the 犋 Μ Office m ▲ away from the J 117 welcome position, that is, the lock position is offset or the elastic deformation is incorrectly fixed by some of the parts For the case of the pin 89 side, it is assumed that the lock plate 84 is in use: a strong impact is applied to the brake device 8 == plate 84

521129 Five invention description (37) &quot; ------ ~ In the state, the lock plate lining 92 will be out of contact with the peripheral wall flutter, so that the braking force of the lock plate 8 4 may disappear. κ-like grudge 'However, the lock piece 84 is a straight line distance from the lock piece fixing hole 84b to the lock piece lining, which is longer than the above-mentioned lock piece fixing hole 84b to two = a short straight line distance, and, The brake circle rolls the center of the axle and the axis of the fixing pin 89. The 2 points of the straight line &lt; 3 are approximately linearly symmetrical. Therefore, even when the lock plate 84 is in use, the brake device 81 will be impacted. Each part is elastically deformed, and the rotation may exceed the dead point of the contact state between the lock piece 84 and the peripheral wall 3b. In addition, the above-mentioned lock piece lining 92 is maintained in a state in which it is possible to come into contact with the peripheral wall 3b even under the above-mentioned condition '. Therefore, the lock piece 84 disappears without braking force. As described above, the length of the lock piece 84 from the lock piece fixing hole 84b to the lock piece lining 92 is longer than the shortest straight line distance from the lock piece fixing hole 84b to the peripheral wall 3b. The contact angle when the lock piece 84 is in contact with the peripheral wall 3b. As a result, the locking plate 84 can generate an excellent braking force. The lock piece 84 is directly contacted by the take-up cam 88 and comes into contact with the peripheral wall 3b. Therefore, there is no need to interpose a connecting rod or the like, the number of parts is reduced, and excellent operability is achieved. Then, as shown in FIG. 19, one end of the lock plate 84 is provided with a lock plate abutment portion 84a which is in contact with the actuating cam 88, and the other end is provided to support the lock plate 84 to force the lock plate at a position away from the peripheral wall 3b. Spring 84 of the lock for the forcing of the potential.

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-41- 5. Description of Invention (38) Pin. 1 \ 84 Abutment of Λ lock plate return spring 86-The back plate at the end is thin c. The other convexity of the lock piece reset spring 86: the shape, the contact of the follower piece 15 and the lock piece 84, and the plate shape 'f', which moves on the back of the back plate 83, is connected to the freely settable if The upper part of the rocker 71 and the back plate 83. That is, the structure of actuating the convex = Γ lever 71 can follow the movement of the actuating control lever 71 and the F-moving cam 88 also rotates. = The end of the moving control lever 71 is via a wire u = The car control lever 11G is on the brake control lever 11Q Figure =: The operation of the car control lever 110 is shaken in conjunction with the operation of the car !! 〖NVII4 口 A ^ In other words, it is a structure in which the operation cam 88 is rotated by the operation of the soap-making cup 110.枓 2 m is shown in Figure 丨 1. The brake lever 110 is composed of a bottom plate 112 fixed on the frame m of the wheel 2:20, and a ϊ1 ft1 rod support frame 113 extending below the bottom plate 112. The brake cup support pin 1 1 4 on the brake lever support frame U3 and the lever body 丨 5 rotatably provided on the brake lever fork know pin 1 1 4. #Here, the installation position of the brake lever 11 of the opposite frame 104 can be arbitrarily set, but, as shown in FIG. 〇, it is best to be provided at the handgrip portion 116 of the chair 201 which is easy for the user to operate. As shown in FIG. 12, the bottom plate 11 2 is formed with a modal conversion groove 112 a which becomes a control lever body 丨 j 5 = a guide groove, and the control rod body 115 is inserted into the mold conversion groove 11 2 a and is installed in Brake lever support pin 丨 丨 4. Here, 'as shown in Figure 12, the modal conversion groove 丨 12a is divided into C: \ 2D-CODE \ 91-05 \ 91102598.ptcl page 42 521129 in the wheelchair 2． 5. Description of the invention (39) — ” Bishops who apply braking arbitrarily in the two directions of advancing and reversing: do not apply any of the directions of advancing and reversing before 7 = 1 to teach the car to use the 'in mode' and to reverse the wheelchair 201 Automatically apply ..., auxiliary brake mode with soap effect. In more detail, the brake control mode conversion groove 1 12a is used to pick up the bow 丨 turn Qiu M /, 3 toward the body 115 to turn a to limit the control lever. 由于 = due to ^ brake mode When the user is a normal user, the joystick body 115 is slid in the area of the arrow person in FIG. 12. In the second mode, in the Λκ car release mode, at 8 o'clock in FIG. 12, the control lever is locked: the body m in the brake assist mode, at point C in FIG. 12, the control is tied, the second, = the lever body The position of 115 can be changed to the setting of each mode to switch the braking effect.疋 4 71 U Ϊ: Ϊ 制 才! Ί 体 11 5 and the steel wire 111 connected to the joystick 2-ψ = bit, yellow 11 8. The return spring 11 8 series is equipped with a support arm 83 which is provided by the back-holding arm 83. The reset arm is supported by the arm of the reset arm. # 83 FU ^ 3 Forced return to the control lever 71 direction ==== 'The joystick is cut into the circle of the main focus of the arrow in Figure 12; it is supported on the brake release mode side. Next, operations of the above-mentioned constituent components will be described with reference to the drawings. 19 is an explanatory diagram of the operating state of the main brake mode. Fig. 14 is a diagram showing the position of the brake lever ιι0 in the main brake mode. Page 43 C: \ 2D-CODE \ 91-05 \ 91102598.ptd 521129

Hereinafter, similarly, FIG. 20 and FIG. 16 are explanatory diagrams in the brake release mode, and FIG. 21 and FIG. 18 are explanatory diagrams in the auxiliary brake mode. &lt; Master brake mode &gt; First, the master brake mode will be described. The main brake mode complaints are shown in the two directions when the wheelchair advances forward and backwards, and the user can use the brake mode arbitrarily. In the main brake f mode, the braking force is generated by the orientation piece 14 and the second moving piece 15. Yu Yu has a structure that, in the main brake mode, when the brake is applied, if the lever body 115 is pressed in the direction of the arrow A in FIG. 14, the brake is applied, and if the pressure is removed, The pressure on the lever body 丨 丨 5 guides the lever body 丨 5 back to the direction opposite to the arrow A in FIG. 14 by the pulling force of the return spring 1 1 8 to release the brake. The operation of each component of the master brake mold is as follows. When the control lever body 115 is pressed in the direction of arrow a in FIG. 14 to apply a braking action, power is transmitted from the control lever body 丨 5 through the wire 111, and the control lever 71 is operated to rock. Then, the actuating cam 88 connected to the actuating control lever 7 丨 rotates in the direction of arrow N in FIG. 19 with the rotation axis of the actuating cam 88 as the center. At this time, at the contact point with the actuating cam 88, that is, the directional piece top contact portion 14a and the moving piece top contact portion 15a become the force points. In addition, the fixing pin 8Q becomes a fulcrum, and the orientation sheet spacer 14c and the driven sheet spacer 15C serve as operating points. Then, the directional sheet linings 1 4c and the driven sheet linings i 5 serving as the action points are pressed against the peripheral wall 3 b and brakes are applied. On the other hand, if the lever body 115 is oriented in the direction of the arrow a in FIG. 14

521129 V. Description of the invention (41) &quot; Return in the opposite direction &quot; The power is transmitted from the control lever body 115 through the wire 111, and the control lever 71 is moved to shake. Furthermore, 'the actuating cam 88 connected to the actuating control lever 71 returns in the direction of arrow r in FIG. 19', the orientation piece 14 and the follower piece 15 are separated from the peripheral wall 3b of the brake drum 3 to release the braking effect. “As shown in FIG. 19 again, the position of the above-mentioned lock plate 84 of the main brake mode is the force of the lock plate return spring 86 on the mq lock plate 84, which is maintained in a state of leaving the brake wall 3b. In the case of the 8 pits, the lock plate 8 4 becomes the position where the lock plate is always reset by the lock plate &lt; Dunyu II to get away from the peripheral wall 3b of the brake drum 3. &lt; Brake release mode & gt Next, the brake release mode will be described. The brake release mode is a mode in which the brake does not act on the brakes. When the wheel holds 201, either forward or backward, in the brake release mode, it is determined as follows. At point B in Figure 16, the bishop-'Released the lever body 1 1 5 brake mode.… The car core mode or auxiliary brake mode is changed to, so when the lever body n ^ wheel 88 is kept completely Do not rotate j obliquely to ^ car to release the mode, actuate the convex follower piece 15 is connected to the evening, and) = stand state, the orientation piece 14 and 3 away from the peripheral wall 3 b. Idle tile return spring 9 0 tension

Page 45 521129 V. Explanation of the invention (42) In addition, the lock plate 84 at this time has the same mode as the main brake, and the position is set to keep the yellow 86 and leave the peripheral wall 3b, so that when the ^ is reversed, the brake does not change. Work. &Lt; Assisted braking mode &gt; Next, the assisted braking mode will be described. The auxiliary braking mode is a mode in which the braking action occurs automatically when the wheelchair 20 is reversed and also turned. The above-mentioned auxiliary brake: in the state, the braking force is generated by the above-mentioned locking piece 84. This === point at;: If the working place is equal to: = = In the case of reverse rotation, it does not follow the user's actions of the various components of the auxiliary braking mode of the Guangxi. If the auxiliary braking is to be performed, the control will be controlled. The rotation axis of the lever body u to the movable cam 88 is rotated in the direction of the two heads K as a center. Then, the locking piece abutting portion 84a is pushed upward by 88 in Fig. 21. T-tipped cam Then, the lock plate is rotated with the lock plate fixing hole 84b in the same direction as the 01 head L direction. As a result, Gu leveraged the force of the anti-locking plate return spring 86 to become in contact with Zhou Bier. The "1" is caused by: "wheel: 201 walking on the slope, walking on the brake drum; looking for, by the automatic boosting effect (wedge effect) ), The wall 3b is provided with a brake. The lock piece 84 is attached to the periphery at this time, because the shape of the lock piece 84 is from the lock piece fixing hole to the lock piece.

C: \ 2D-CODE \ 91-05 \ 9110259S.ptd Page 46 521129 V. Description of the invention (43) = = Degrees, compared to the contact between the above-mentioned locking plate and the negative female ^ μμ: ^ locking plate lining 92 and the peripheral wall 3b: in the forward direction, the brake drum may be released; the coupling state between the lock plate 84 and the peripheral wall 3b may be released, so that the forward direction becomes 1 'in the auxiliary braking mode, when the wheel 2 is rotating, :, The car is automatically boosted by swinging, because of the movement L1: When the control lever body 115 is switched to other modes, the two-way arrow is activated. The rotation axis of the cam 88 is reset. The lock piece 84 provided on the lock piece 84 is separated from the peripheral wall 3b and returned to the original position, so that the lock piece 84 is brought into a state again, thereby becoming a shape wheel without braking action even when the wheel 101 is reversely rotated: In the "state", the braking device of the present invention is applicable to ^ 彳, A, but the braking device of the present invention is not only suitable for wearing all types of light vehicles such as baby carriages, trolleys, etc., but l is suitable for wheelchairs. In this case, it is better to install brakes for two wheels or to install brakes for only one wheel. Bu, ..., the same as the spokes or wheels fixed to the wheels, but can also be page 47C: \ 2D-CODE \ 91-05 \ 91102598.ptd 521129 — V. Description of the invention (44) On the axles and the like extending from the center of rotation of the wheel. Although there are detailed or specific embodiments of the invention to explain the invention, various changes can be made as long as it does not depart from the spirit and scope of the invention = positive, and Regarding this point, anyone who is familiar with the technology should understand it easily. This application is based on the Japanese patent φ bite (Japanese Patent Nos. 2000 1-2836 16) filed on September 18, 2001. As a reference here, it is put into its case = Case 1 Useability Valley. It can be clearly understood from the description of (1) that the brake of the present invention described in (1) i; the braking mechanism does not directly contact the wheel (tire). , But Ba Yi Α 敎 the car rolls w to exert the braking force 丨; 丨 by the old fish ^ Γ to make lines, for example, even if the rain wears = tire) wear degree, = can also be obtained Always stable; the contact resistance of the wheel surface changes, in addition, as described in (2) The reverse rotation of the car drum is used to send the vehicle to climb the slope, etc. In the car ^ mechanism, for example, it is automatically played when the car is pushed on the ramp and it has nothing to do with it: &quot; After rotating, it is necessary to rotate with the user's will However, the skill of Liuliu “so” became unconscious about the wheels going backwards. In addition, the brakes: slope, propulsion, and climbing on the slope. The conventional structure of the wheels is built in the brake drum, which makes the parts large by direct contact. The comparison of the necessary monthly conditions becomes unnecessary, so that the purpose of matching the size of the wheels is eliminated. Therefore, the result is that the result can be small and light and exposed to the outside. Therefore, the inside = the brake drum, which can prevent the brake parts. Aesthetics. ^ Appearance of wheelchairs, etc. with lifting gear and brakes i C: \ 2D-CODE \ 91-O5 \ 91102598

Ptd

P.48 521129 V. Description of the invention (45) 'In addition, in the brake device described in (3) and (4), the action conversion of the arm by the locking plate can be arbitrarily selected according to the braking force selection mechanism that acts on the wheel. The presence or absence of braking force. For example, by changing the braking force selection mechanism to, the brake assists the mode to travel, and the wheel can travel safely even when the wheels are going to rotate backwards. In addition, by switching the braking force selection mechanism to the brake release mode, the brake does not work even in any of the forward and reverse conditions. Therefore, it is possible to advance and reverse by the user's will.

In addition, in the braking device described in '(5) and (6), for example, in addition to being easy to push on the slope and walking on the hill, the braking force selection mechanism is converted to = ^ locking mode for locking. The wheels make it possible for J to park even on inclined grounds. In addition, a brake mechanism that exerts a variety of braking forces can be composed of brake rolls, 埂 rotation lock plates, forward rotation lock plates, and lock plate limiting arms. I = is suitable for small size and light weight, and can be manufactured more inexpensively. In addition, because the built-in parts are built into the brake drum, they can contribute to the aesthetic improvement. In the brake device described in (7), the second brake is used when the wheels only rotate in one direction.

And the rotation of the brake drum (wheel) ’. Therefore, even when driving on the ramp, it can move forward without going backward.袓 ::, s Because the brakes on the rotating shaft of the wheels have built-in brakes for auxiliary walking, as well as ramp-up and familiar cars on the slope, there is no need to correspond to the size of the wheels =: …: It ’s not easy to make the brake mechanism large because

521129

91102598.ptd Page 50 521129 V. Description of the invention (47) In addition, it can be braked in the reverse direction in the brake drum mounted on the inner peripheral surface of the brake drum, thereby reducing the manufacturing cost. In addition, since the braking force is not obtained by direct contact, even in the state where the air pressure drops, the reverse rotation of the wheel can be generated when the brake described in (11) travels, and the day τΓ 'is automatically locked until the reverse rotation of the wheel is released. , To maintain the reliability of braking for braking. In addition, the preferred combination of high-efficiency size and shape in the braking device described in (1 2) is easy to obtain the description of the original purpose of the small light component number. The idler shoe and the reverse brake shoe are pressed against. It is completely built in the rotating shaft provided on the wheel to achieve small size and light weight, and to obtain the wheel, the friction with the brake drum allows the braking force to be stabilized when walking on a rainy day and when the tire is worn or stable. “1 Centering” If the brakes in the reverse direction are removed before the ramp advances and climbs the slope, the state of the brake shoes is reversed. Therefore, the reverse rotation prevention centering can be improved. The brake described in) reveals the position of the component parts, and can reduce the weight and cost by using such a structure. 1 Brake device 3 Brake drum 3a Base plate portion 3b Peripheral wall 5 Back plate 5a Axle insertion hole 5b Fixing pin 521129 V. Description of the invention (48) 5c Arm support shaft 6 Locking plate spring 7 Locking plate limiting arm 7a Control rod body 7b Guide pin 7c Operating lever 7d Limiting arm body 11 4 Car device 14 Orientation piece 14a Orientation piece abutment portion 14b Orientation piece fixing hole 14c Orientation piece profile 15 Follower piece 15a Follower piece abutment portion 15b Follower piece fixing hole 15c Follow Moving plate lining 17 Locking plate limiting arms 17a, 17b Guide pin 17c Operating lever 17d Limiting arm body 21 Car device 22 Brake shoe (first brake mechanism) 23 Locking plate body 23a Contact point

91102598.ptd Page 52 521129 V. Description of the invention (49) 23b Fixing hole 24 Overview piece 25 Back plate 2 5a Axle insertion hole 25b Return spring support arm 26 Locking piece 2 6a Locking piece body 26b Locking lining 27 Lock Plate limiting arm 28 Actuating cam 30 Locking plate (braking mechanism) 31 Guide groove 31A Locking plate release position 31B Locking plate limiting position 32 Fixed? L 33 Locking plate body 34 Shaping plate (friction member) 40 Locking plate (brake mechanism) for reverse rotation 41 Guide groove 41A First release position 41B Limiting position 41C Second release position 44 Overview piece 50 Locking plate for forward rotation

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V. Description of the invention (50) 51 guide groove 51A first limit position 51B second limit position 51C liberation position 54 profile 61 return spring 62 lock plate spring 63 lock plate limit spring 65 fixing pin 66 arm body 6 6a contact portion 66b lock Plate support pin 67 Lock plate limiting pin 69 Lock plate limiting arm Fixing pin 71 Actuation lever 81 Brake device 83 Back plate 83a Axle insertion hole 83b Return spring support arm 83c Back plate pin 84 Lock plate (reverse brake shoe) 84a Locking plate top 84b Locking plate fixing hole 84c Locking plate pin 91102598.ptd Page 54 521129 V. Description of the invention (51) 86 Locking plate return spring 88 Actuating cam (expanding mechanism) 8 9 Fixing pin 9 0 Brake shoe Return spring 92 Locking lining 100 Wheelchair 101 Wheel 102 Wheel hub 103 Spoke 104 Frame 110 Brake lever 111 Steel wire 112 Bottom plate 112a Modal conversion groove 113 Brake lever support frame 113a Conversion inducing part 114 Brake lever support pin 115 Lever body 115a Concave part 116 Handlebar part 118 Return spring 201 Wheelchair β Friction coefficient

91102598.ptd Page 55 521129 Brief description of the drawing Figure 1 is a brake device suitable for the present invention Figure 2 is a right side view of KK Zhuke when 鼗 千 * and Α π 0 q ,, and the shape is not consistent The sorrowful perspective. "'Please keep your mouth open. Figure 3 is an operation diagram showing the components of the brake device according to the first embodiment. Fig. 4 is a view showing operation patterns of components of the brake device according to the first embodiment, each of the auxiliary braking modes, and each of the brake release modes. Fig. 5 is a cross section taken along the line A-A, of the braking device shown in Fig. 4. Each of the assisted braking modes. Fig. 6 is an operation diagram showing auxiliary components of the braking device according to the second embodiment. The operation diagram of each component of the brake release mode of the brake of ΓΛΓ / 2 is implemented. The operation diagram of each component of the brake lock mode of the brake device of the second embodiment is constructed. Fig. 9 is a sectional view taken along line A_A of the brake device shown in Fig. 7. Fig. 10 is a side view of a third brake device suitable for the present invention. 1A 3A-shaped Wheelchair Figure 11 is a large side view of the brake as the mode switching mechanism shown in Figure 10. Guarding the Wind Figure 12 is a plan view of the base plate provided on the brake lever shown in Figure 丨 丨 Figure 13 is an operation explanatory diagram of the components of the brake device according to the third embodiment of the present invention. ..., half quite ‘%

C: \ 2D-CODE \ 91-05 \ 91102598.ptd Page 56 521129 Brief description of the diagram Figure 14 shows the brake control Figure 15 shows the various states of the state 16 Figure 16 shows the state of the brake Figure 17 shows the state of the state 18 Fig. 19 shows the components of the state. Fig. 20 shows the components of the state. Fig. 21 shows the components of the state. 22 shows the row locking area. Fig. 23 shows the tension bit. Fig. 24 shows the tension of the plate. Inventive control lever Inventive part Inventive part Inventive part Inventive part Inventive part Inventive part In the field of the present invention, the present invention is set to the main position of the brake device of the third embodiment showing the current position. Illustrating. An explanatory diagram of the braking operation of the braking device of the third embodiment. An explanatory diagram of the braking position of the braking device of the third embodiment. The operation explanatory diagram of the brake device of the third embodiment. An explanatory diagram of the position of the auxiliary device of the third embodiment. The main operation explanatory diagram of the fourth embodiment of the brake device. An explanatory diagram of the braking operation of the fourth embodiment of the braking device. ", The auxiliary operation explanatory diagram of the fourth embodiment of the car description. The lock diagram of the fourth embodiment of the brake device. The layout of the lock plate of the fourth embodiment of the moon brake device 4th Embodiment of the Invented Brake Device Fig. 0 Brake modal car release mode Car release mode Assist brake mode Assist brake mode Assist mode Brakes modal vehicle release mode Assist brake mode No lock plate lining without self-locking lining

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Claims (1)

521129 ——-—-— VI. Scope of Patent Application &gt; 1 · A brake device is a rotary shaft car device which is opposed to a car * via a brake drum provided at the same time as the rotating shaft of the car ', which is characterized by · · The condensed rotation is limited; when the brake mechanism is rotated in the direction of the normal rotation of the brake drum, the wedge is connected to the above brake roll: or the button in the reverse rotation — the above rotation or reverse of the brake drum Rotating side ^: = Inner peripheral surface, restricted by 2 · such as the braking equipment rotation of the first patent application scope. The mechanism is in the shape of the above-mentioned brake drum's reverse rotation, in which the inner peripheral surface of the brake is added to the rotation of the brake drum ^ f ^ is applied to the brake drum 3. If the brake t . The power selection mechanism is converted. Among them, there is a system that applies the braking force of the braking mechanism to the braking state, and the auxiliary braking mode, which is the same as above, and the braking release mode that invalidates the braking force of the braking mechanism. State, you can choose to do nothing. 、 Brake acting on the wheel 4 · If the brake device of the scope of patent application No. 3, the complex mechanism has a lock piece that can be freely rotatably provided on the fixed shaft required for the above-mentioned teaching vehicle and the above-mentioned brake; ",, The flat inner side supports the above-mentioned braking force selection mechanism ##, a locking plate limiting arm that restricts the position of the lock plate rolling to the inner peripheral surface, and is used to release the lock plate limiting arm in the braking mode. ^ The auxiliary brake is described in the above brake release mode to maintain the above-mentioned two; 2 state 'and limit the state. 4 lock plate limit arm lock plate η II I page 58C: \ 2D-CODE \ 91-05 \ 91102598.ptd 521129 / 、 Shenzhen Patent Scope 5 · Such as the Minzuo Zhuang mechanism of the Shenyang Patent Scope 4 is equipped with a car device, of which the above-mentioned brake] brake mechanism is attached to the brake $, the brake drum The inner peripheral surface is based on w. When we rotate, the wedge is bound to the rotation to restrict it; and the second brake mechanism of the brake drum rotation in the A logic rotation direction is tied to the inner peripheral surface of the brake drum. Wedge-shaped The rotation of the brake drum in the direction of the ten-side positive rotation. The braking force selection mechanism is provided with the auxiliary braking mode of the brake mechanism described above; the force acting on the brake drum applies the force of the first brake mechanism to the above. Brake roll: the brake of the second brake mechanism will lock the brake door of the vehicle, and the brake release function of the brake is invalid.]] Power and brake of the second brake mechanism. The brake device, -Middle ... In the state of the inner support lock plate of the vehicle, the lock plate for positive rotation can be used in the reverse rotation with the first braking mechanism; It is necessary to fix the axis of the braking force selector / the inner peripheral surface of the brake drum, to individually limit the above-mentioned locking pieces to leave and be on the locking piece limiting arms of the auxiliary brake 5; in the complaint, only release the above locking piece limiting arms -----_ _ C: \ 2D-C0DE \ 91-05 \ 91102598.ptd Page 59 VI. The scope of the patent application states that the limit state of the reverse lock is in the above-mentioned brake lock mode and at the same time liberate To switch to lock plate and forward rotation: The above of the lock is described in the brake release mode, and the same dimension is ::; ..., the upper and lower rotation lock plates and the forward rotation lock f lock plate 4; C, to restrict the rotation with the wheel _…, early The brake device Α is known to turn the car, 1 braking mechanism is applied to the car, the sign is: with two directions of ^ 疋 turned = ^: within the inner surface, "brother 2 braking mechanism, acting on the second 'Limit! :: The rotating inner peripheral surface in the direction of the army of the car drum is used to declare the vehicle-to-carry-over conversion mechanism of item 7 of the patent scope. The first brake mechanism of the first brake mechanism that acts on the brake drum of the brake drum is configured as a non-action brake release mode force machine and the second brake mechanism is used as a non-action. The same as the above-mentioned auxiliary braking system I; in any mode, you can choose any of the 9 items that act on the above brake drum: car top-loading / 'where, the above 1st holding system :::: " A pair of brake shoes on the axle by the location found on the inside of the brake drum; page 60 C: \ 2D-CODE \ 91-05 \ 91102598.ptd The second brake mechanism has a lock piece on the shaft and is provided with potential energy to be freely provided on the required fixed inner peripheral surface. In addition, the mode conversion mechanism that contacts the brake drum during the state is provided with a lock. The plate restricts the arm, the position of p-plane; and π 1 疋 The above-mentioned locking plate actuates the cam away from the inner periphery of the brake drum, and is attached to the upper brake pad of the brake drum. Pressing the ^ of the arm limited by the above-mentioned locking plate = release the brake by the brake shoe in the above auxiliary braking mode = 弋, and limit the locking plate of the locking plate limiting arm in the above-mentioned brake release mode;: 2, inner periphery While maintaining the above-mentioned 1 0 · — a kind of brake double.-The characteristic of the main brake shoe is that it has an opening mechanism to resist the pressure of the car and the car. It is freely supported on the back plate and can be used for expansion. Restricted to the above car 'δ Rishou, the inner peripheral surface of the brake drum turned so as to rotate in the positive and negative rotation direction; the brake shoe in the reverse direction is connected to the above brake roll ~ 疋 turn freely The ground is supported by the reverse rotation of the above backplane The direction of rotation is the same as that of the inner peripheral surface, which is used to restrict the braking to the wheel in the reverse direction, and to place the contact surface on the pair of brake rollers. T The connection of the above brake drum of a main brake shoe. • If the brake shoes of the direction of the patent application range are,, ..., the vehicle device, its application, the above-mentioned reverse contact surface is provided on the inner peripheral surface of the brake drum C: \ 2D-CODE \ 91-05 \ 91102598.ptd Page 61 521129 VI. Position for automatic lock when contacted with patent application scope 1 2. For the brake device of patent application scope No. 10 or 11, among them, A modal f-change mechanism is used to switch the main brake mode for limiting the rotation of the brake drum by the pair of main brake shoes, and the reverse rotation of the brake roller is restricted by the brake shoes in the reverse direction. Auxiliary brake mode, and at the same time, any one of the brake release modes except the above-mentioned restrictions on the rotation of the brake drum of the above-mentioned main brake shoe and the reverse brake shoe, can be arbitrarily selected to act on Braking force on the wheels. 13. As for the brake of item 12 of the scope of application for patent, the state transition mechanism has /, y J1 back to brake the brake shoe and the inner peripheral surface of the roller in the reverse direction; the tile leaves or presses against the brake During the main brake mode, the position of the inner peripheral surface of the brake drum is reversed. Keep the same distance from the tile to press against the inner peripheral surface of the brake drum; In the mode, the inner peripheral surface of the brake drum is described in the above-mentioned reverse direction, and at the same time, the moving θ tile is pressed against the position of the inner peripheral surface of the brake drum that is opened up; From time to time, the above-mentioned one Dong ten main idle tiles leave: the inner surface of the tube 'Tongri Temple' maintains the above-mentioned brake shoes in the opposite direction ^ C: \ 2D-CODE \ 91-05 \ 91102598.ptd Page 62