JP7443982B2 - linear lock clutch - Google Patents

Description

The technology disclosed in this application relates to a linear lock clutch.

2. Description of the Related Art Conventionally known clutches used in, for example, vehicles are generally used to transmit or cut off rotational power from a driving member to a driven member. On the other hand, with the progress of electrification and by-wiring of vehicles, so-called linear lock clutches that transmit the linear motion of the driving member to the driven member while interrupting the transmission of the linear motion of the driven member to the driving member are becoming increasingly popular. Needs are also increasing.

Patent Document 1 discloses a linear clutch (linear lock clutch) that can transmit and interrupt linear motion.

Patent No. 2895509

The linear lock clutch disclosed in Patent Document 1 has a large number of parts, such as using an outer ring with a circular cross section and providing a cam block (reference numeral 10) inside the outer ring to form a cam surface (reference numeral 11). The problem is that the structure is complex.

Therefore, various embodiments provide a linear lock clutch that has a simple structure while reducing the number of parts.

A linear lock clutch according to one embodiment includes a housing having a rectangular cross section, a first sliding part that slides along an inner wall of the housing, and a first sliding part that slides along the inner wall of the housing. a second sliding part formed at a position spaced apart in the axial direction from the second sliding part, and a connecting part connecting the first sliding part and the second sliding part, into which power is input. an input shaft; a first transmission surface that is accommodated in an enclosing area surrounded by the first sliding part, the second sliding part, and the inner wall and that can come into contact with the first sliding part; a power transmission section including a second transmission surface that can come into contact with a second sliding section; an output shaft to which the power is transmitted from the input shaft; and a first inclined surface formed on the power transmission section. and the inner wall, the first engaging element being able to come into contact with the first sliding part, and the second engaging element being arranged between the second sliding part and the first engaging element, a first biasing member that biases the first engager in a direction toward the first sliding portion; and a first biasing member formed on the power transmission unit at a position different from a location where the first inclined surface is formed. a second engaging element that is sandwiched between the second inclined surface and the inner wall, and that can come into contact with the second sliding part; and a second engaging element that can come into contact with the second sliding part; a second biasing member disposed between the second engaging member and biasing the second engaging element in a direction toward the second sliding portion, the first inclined surface being arranged in the axial direction toward the second engaging member; The second inclined surface has an inclined shape in which the distance from the inner wall gradually decreases as it approaches the sliding part, and the second inclined surface has a shape in which the distance from the inner wall becomes smaller as it approaches the second sliding part in the axial direction. It has an inclined shape that gradually becomes smaller.

According to the linear lock clutch having this configuration, the number of parts can be reduced and the structure can be simplified compared to the conventional one.

Further, in the linear lock clutch according to one aspect, the power transmission section on the output shaft is accommodated in a first surrounding area surrounded by the first sliding section, the second sliding section, and the inner wall, a first power transmission part including the first transmission surface; a second part surrounded by the first sliding part, the second sliding part, and the inner wall, and formed at a position different from the first surrounding area; a second power transmission part housed in an enclosing region and comprising the second transmission surface, the first sloped surface being formed on the first power transmission part, and the second sloped surface being formed on the first power transmission part; 2 formed on the power transmission section.

According to this configuration, by dividing the power transmission section into the first power transmission section and the second power transmission section, the input shaft is transferred from the input shaft to the output shaft based on the contact relationship between the first sliding section and the first transmission surface. It is possible to accurately and reliably perform power transmission from the input shaft to the output shaft based on the contact relationship between the second sliding portion and the second transmission surface.

Further, in the linear lock clutch according to one aspect, the first surrounding area and the second surrounding area are formed at symmetrical positions within the housing with the connecting portion as the center.

According to this configuration, the mounting balance (weight balance) of each component within the housing of the linear lock clutch can be ensured.

Moreover, in the linear lock clutch according to one aspect, the first engager has a roller shape or a spherical shape.

With this configuration, in the linear lock clutch according to one embodiment, the first engager comes into contact with the inner wall of the housing, allowing power to be transmitted from the input shaft to the output shaft, and from the output shaft to the input shaft. It becomes possible to efficiently cut off power transmission.

Further, in the linear lock clutch according to one aspect, at least one of the first sliding part and the second sliding part has a guide roller that comes into contact with the inner wall, and the Slide along the inner wall.

With this configuration, the input shaft can slide smoothly against the inner wall of the housing.

Further, in the linear lock clutch according to one aspect, the housing includes a main body, a separate plate provided separately from the main body and serving as the inner wall, and a separate plate that is connected to the first sliding portion and the separate plate. and a positioning member positioned at a position abutting the second sliding part.

With this configuration, even if manufacturing errors occur, the inner wall of the housing and the first engager, the inner wall of the housing and the second engager, and the inner wall of the housing and the guide roller can be reliably contacted. This makes it possible to reliably perform the functions required for a linear lock clutch (power transmission function from the input shaft to the output shaft, and power transmission cutoff function from the output shaft to the input shaft).

According to various embodiments, it is possible to provide a linear lock clutch that has a simple structure while reducing the number of parts.

FIG. 1 is a schematic plan view schematically showing the configuration of a linear lock clutch according to an embodiment. FIG. 2 is a schematic side view of a second enclosing region P2 side schematically showing the configuration of a linear lock clutch according to an embodiment. FIG. 2 is a schematic plan view schematically showing the linear lock clutch shown in FIG. 1 when power in the R direction is input to the input shaft. FIG. 2 is a schematic plan view schematically showing the linear lock clutch shown in FIG. 1 when power in the L direction is input to the input shaft. FIG. 5 is a schematic plan view showing an enlarged view of a portion surrounded by a dotted line in FIG. 4. FIG. It is a schematic plan view which shows typically the structure of the linear lock clutch based on 2nd Embodiment. It is a schematic plan view which shows typically the structure of the linear lock clutch based on 3rd Embodiment.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. Note that common constituent elements in the drawings are designated by the same reference numerals. Also, it should be noted that components depicted in one drawing may be omitted from another drawing for convenience of explanation. Furthermore, it should be noted that the attached drawings are not necessarily drawn to scale.

1. Structure of Linear Lock Clutch An overview of the overall structure of a linear lock clutch according to an embodiment will be described with reference to FIGS. 1 to 5. FIG. FIG. 1 is a schematic plan view schematically showing the configuration of a linear lock clutch 1 according to an embodiment. FIG. 2 is a schematic side view of the second enclosing region P2 side schematically showing the configuration of the linear lock clutch 1 according to one embodiment. FIG. 3 is a schematic plan view schematically showing a situation where power in the R direction is input to the input shaft 100 in the linear lock clutch 1 shown in FIG. FIG. 4 is a schematic plan view schematically showing a case where power in the L direction is input to the input shaft 100 in the linear lock clutch 1 shown in FIG. FIG. 5 is a schematic plan view showing an enlarged portion surrounded by a dotted line in FIG. 4. FIG. Note that in this specification, the axial direction refers to the direction in which the input shaft 100 (and output shaft 200) moves linearly (for example, in FIGS. 1 and 2, the left direction "L direction" or the right direction "R direction" ”) means.

The linear lock clutch 1 according to one embodiment allows power transmission from an input shaft 100 that moves linearly to an output shaft 200, while blocking power transmission from the output shaft 200 to the input shaft 100, and includes, for example, It can be applied to various devices such as power transmission mechanisms (drive trains) of vehicles and the like.

The linear lock clutch 1 according to one embodiment mainly includes a housing 10, an input shaft 100, an output shaft 200, a first engager 300, a first biasing member 400, a second engager 500, A second biasing member 600 is included as a component. Hereinafter, details of each component of the linear lock clutch 1 according to one embodiment will be described.

1-1. Housing 10
As shown in FIG. 1, the housing 10 has a rectangular cross-section and includes (at least a portion of) an input shaft 100, (at least a portion of) an output shaft 200, a first engager 300, and a first biasing member. The member 400, the second engager 500, the second biasing member 600, etc. are housed inside.

An inner wall 15 defining the interior 11 of the housing 10 functions as a guide surface that guides the linear movement of the input shaft 100 (and output shaft 200) in the axial direction. Furthermore, the inner wall 15 of the housing 10 can also come into contact with a first engaging element 300 and a second engaging element 500, which will be described later.

1-2. Input shaft 100
The input shaft 100 is connected to a drive member (not shown) connected to a power source, and is capable of linear movement in the axial direction. As shown in FIGS. 1 and 2, the input shaft 100 is at least partially housed within the interior 11 of the housing 10.

The input shaft 100 includes an input base 101 that extends in the axial direction and is connected to the drive member, a first sliding portion 110 that contacts the inner wall 15 of the housing 10 , and a first sliding portion 110 that contacts the inner wall 15 of the housing 10 and is connected to the drive member. a second sliding part 120 formed at a position separated from the sliding part 110 by a predetermined distance in the axial direction; a connecting part 130 connecting the first sliding part 110 and the second sliding part 120; can have.

The first sliding part 110 and the second sliding part 120 have an outer diameter that is substantially the same as the inner diameter r1 of the inside 11 of the housing 10 (inner diameter r1 in the width direction perpendicular to the axial direction), and in the width direction. It abuts against the inner wall 15 of the housing 10. Thereby, the input shaft 100 can accurately and reliably move linearly in the axial direction along the inner wall 15 of the housing 10.

Moreover, the first sliding part 110 and the second sliding part 120 may abut against the inner wall 15 of the housing 10 not only in the width direction but also in the height direction orthogonal to the axial direction. As a result, the input shaft 100 is reliably guided by the inner wall 15 of the housing 10, so that it can accurately move linearly.

The first sliding part 110 and the second sliding part 120, together with the inner wall 15 of the housing 10, form a first surrounding area P1 and a second surrounding area P2, which will be described later. In addition, in the first sliding portion 110, a portion that defines a part of the first surrounding area P1 and faces a first engaging element 300, which will be described later, has a first engaging element 300 and a first engaging element 300, as shown in FIG. A first protruding portion 115 that comes into contact may be formed. Similarly, in the second sliding portion 120, as shown in FIG. A second protrusion 125 may be formed that comes into contact with the second protrusion 125 .

1-3. Output shaft 200
The output shaft 200 is formed so as to be able to linearly move in the axial direction together with the input shaft 100 by receiving power from the input shaft 100, and as shown in FIGS. 1 and 2, at least a portion of the output shaft 200 is is accommodated in the interior 11 of the housing 10.

More specifically, as shown in FIG. a first power transmission section 210 that is accommodated in a first surrounding area P1 surrounded by an inner wall 15 and includes a first transmission surface 215 that can come into contact with the first sliding section 110; a first sliding section 110 on the input shaft 100; a second power transmission section 220 that includes a second transmission surface 225 that is accommodated in a second surrounding region P2 surrounded by the second sliding section 120 and the inner wall 15 of the housing 10 and that can come into contact with the second sliding section 120; can have. Here, the first surrounding area P1 and the second surrounding area P2 are formed at symmetrical positions with the connecting portion 130 of the input shaft 100 as the center.

For example, as shown in FIG. 1, the output base 201 can be arranged to extend from the outside of the housing 10 to the inside of the housing 10 so as to pass through the first sliding part 110. Note that the relationship between the first sliding part 110 and the output base 201 is such that, for example, a through hole (not shown) through which the output base 201 can pass is provided in the first sliding part 110, and the output base 201 It is possible to adopt a structure in which the hole is inserted through the through hole, but the structure is not limited to this. In the linear lock clutch 1 according to the embodiment, power transmission from the input shaft 100 to the output shaft 200 must be performed based on the contact relationship between the first sliding part 110 and the output base 201. Therefore, the two do not necessarily need to be in contact with each other.

As shown in FIG. 1, the first power transmission section 210 and the second power transmission section 220 extend from the output base 201 in the height direction or width direction of the housing 10, which is orthogonal to the axial direction, for example. What is formed can be adopted. Therefore, the first power transmission section 210 and the second power transmission section 220 are formed parallel to each other in the axial direction, as shown in FIG.

When the power is not transmitted to the input shaft 100 (no-load state), the first transmission surface 215 of the first power transmission section 210 is connected to the first sliding section 110 as shown in FIG. It faces the first sliding part 110 with a predetermined clearance C1 therebetween. On the other hand, when a linear motion in the L direction is input to the input shaft 100, the first sliding portion 110 first moves in the L direction so as to fill the predetermined clearance C1 described above, thereby causing the first engaging element 300 to move. come into contact with Furthermore, the first sliding portion 110 further moves in the L direction against the urging force of a first urging member 400, which will be described later, while pushing the first engaging element 300. Then, the first sliding portion 110 comes into contact with the first transmission surface 215 (see FIGS. 4 and 5). Thereby, the linear motion of the input shaft 100 in the L direction is transmitted to the output shaft 200.

Similarly, the second transmission surface 225 of the second power transmission section 220 is connected to the second sliding section 120 as shown in FIG. 1 when no power is transmitted to the input shaft 100 (no-load state). It faces the second sliding portion 120 with a predetermined clearance C2 therebetween. On the other hand, when a linear motion in the R direction is input to the input shaft 100, the second sliding portion 120 first moves in the R direction so as to fill the predetermined clearance C2 described above, thereby causing the second engaging element 500 to move. come into contact with Further, the second sliding portion 120 further moves in the R direction while pushing the second engaging element 500 against the biasing force of a second biasing member 600, which will be described later. Then, the second sliding portion 120 comes into contact with the second transmission surface 225 (see FIG. 3). Thereby, the linear motion of the input shaft 100 in the R direction is transmitted to the output shaft 200.

Note that the first power transmission section 210 is designed so that a predetermined clearance C3 is formed in the axial direction between the first power transmission section 210 and the second sliding section 120. Here, the axial clearance C3 is designed so that "C3≧C2" in relation to the above-mentioned clearance C2. Thereby, as described above, it is possible to ensure that the input shaft 100 moves in the R direction so as to fill the clearance C2.

Similarly, the second power transmission section 220 is designed such that a predetermined clearance C4 is formed in the axial direction between the second power transmission section 220 and the first sliding section 110. Here, the axial clearance C4 is designed so that "C4≧C1" in relation to the clearance C1 described above. Thereby, as described above, it is possible to ensure that the input shaft 100 moves in the L direction so as to fill the clearance C1.

Further, as shown in FIG. 1, on the surface of the first power transmission section 210, as the first sliding section 110 is approached in the axial direction, the distance from the inner wall 15 of the housing 10 ( A first inclined surface 217 is formed having an inclined shape in which the distance in the direction (for example, the separation distance in the height direction) gradually decreases. On this first inclined surface 217, a first engager 300, which will be described later, is arranged.

Further, as shown in FIG. 1, on the surface of the second power transmission section 220, as the second sliding section 120 is approached in the axial direction, the distance from the inner wall 15 of the housing 10 ( A second inclined surface 227 is formed having an inclined shape in which the distance in the direction (for example, the separation distance in the height direction) gradually decreases. A second engager 500, which will be described later, is arranged on this second inclined surface 227.

Note that the output shaft 200 has a shaft as shown in FIG. 1 for the purpose of guiding the axial linear motion of the output shaft 200 (linear motion transmitted from the input shaft 100) by coming into contact with the inner wall 15 of the housing 10. Note that a third sliding portion 230 may be formed.

1-4. First engager 300
As shown in FIG. 1, the first engager 300 is disposed within the first enclosing region P1 at a position sandwiched between the first inclined surface 217 of the first power transmission section 210 and the inner wall 15 of the housing 10.

In a state where no power is transmitted to the input shaft 100 (no-load state), the first engager 300 has a first protruding portion 115 of the first sliding portion 110 in the axial direction, as shown in FIG. ) and faces the first sliding portion 110 with a slight clearance formed therebetween. Furthermore, in this no-load state, the first engager 300 is urged in a direction toward the first sliding portion 110 by a first urging member 400, which will be described later. However, in the unloaded state, the first engager 300 is in contact with both the first inclined surface 217 and the inner wall 15 of the housing 10 (and the shape of the first inclined surface 217 is, as shown in FIG. Since the distance from the inner wall 15 gradually decreases as it approaches the first sliding portion 110), movement in the R direction is restricted.

Next, when a linear motion in the L direction is input to the input shaft 100, the first engager 300 comes into contact with the first sliding portion 110 that has moved in the L direction so as to fill the clearance C1, as described above. Thereby, the linear motion of the first sliding portion 110 in the L direction is transmitted to the first engaging element 300. Then, the first engaging element 300 will be pushed in the L direction by the first sliding part 110. As a result, the abutting relationship between the first engaging element 300 and the first inclined surface 217 is released (see FIG. 5). In this way, the first engager 300 can move in the L direction together with the first sliding portion 110 against the urging force of the first urging member 400 in the L direction.

Note that the input shaft 100 moves the first engager 300 in the L direction via the first sliding portion 110 against the urging force of the first urging member 400, so that the first sliding portion 110 comes into contact with the first transmission surface 215 of the output shaft 200, so that the linear motion of the input shaft 100 in the L direction is transmitted to the output shaft 200, as described above.

By the way, the movement of the output shaft 200 in the L direction based on the linear motion of the input shaft 100 is not inhibited based on the relationship between the second engager 500, the second inclined surface 227, and the inner wall 15 of the housing 10. do not have. In the unloaded state, the second engager 500 comes into contact with both the second inclined surface 227 and the inner wall 15 of the housing 10, and its movement in the L direction is restricted, as shown in FIG. ing. Here, when the output shaft 200 moves in the L direction, the second engager 500 is synonymous with moving in the R direction relative to the output shaft 200, and the movement in the R direction is restricted. Not yet. Therefore, the movement of the output shaft 200 in the L direction is not restricted or inhibited by the second engager 500 or the like.

Next, we will focus on the case where a linear motion in the L direction is input to the output shaft 200. First, in the no-load state, the first engager 300 comes into contact with both the first inclined surface 217 and the inner wall 15 of the housing 10, and movement in the R direction is restricted, as described above. In this state, when a linear motion in the L direction is input to the output shaft 200, the first engager 300 tends to move in the R direction relative to the output shaft 200. However, as described above, since the movement of the first engager 300 in the R direction is regulated by the first inclined surface 217 and the inner wall 15, the linear movement in the L direction input to the output shaft 200 is 100 will not be transmitted.

As described above, the first engager 300 cooperates with the first inclined surface 217 and the inner wall 15 of the housing 10 to allow power transmission in the L direction from the input shaft 100 to the output shaft 200, while outputting This makes it possible to interrupt power transmission of linear motion in the L direction from the shaft 200 to the input shaft 100.

By the way, the first engaging element 300 can be roller-shaped or spherical. As a result, while smoothly transmitting the power of the linear motion in the L direction from the input shaft 100 to the output shaft 200 described above, the power transmission of the linear motion in the L direction from the output shaft 200 to the input shaft 100 is reliably interrupted. can be done.

1-5. First biasing member 400
As shown in FIG. 1, the first biasing member 400 is disposed between the second sliding portion 120 and the first engagement member 300 along the axial direction. That is, one end of the first biasing member 400 is supported by the second sliding portion 120, and the other end of the first biasing member 400 is in a state in which it is in contact with the first engager 300 and precompressed to a predetermined degree. It will be placed in Thereby, the first biasing member 400 biases the first engager 300 in a direction toward the first sliding member 110.

As the first biasing member 400, a generally known coil spring or the like can be used.

1-6. Second engager 500
As shown in FIGS. 1 and 2, the second engager 500 is disposed at a position sandwiched between the second inclined surface 227 of the second power transmission section 220 and the inner wall 15 of the housing 10 within the second surrounding area P2. be done.

When the second engaging element 500 is in a state where no power is transmitted to the input shaft 100 (no-load state), as shown in FIG. ) and faces the second sliding portion 120 with a slight clearance formed therebetween. Furthermore, in this no-load state, the second engager 500 is urged in a direction toward the second sliding portion 120 by a second urging member 600, which will be described later. However, in the unloaded state, the second engager 500 is in contact with both the second inclined surface 227 and the inner wall 15 of the housing 10 (and the shape of the second inclined surface 217 is, as shown in FIG. Since the distance from the inner wall 15 gradually decreases as it approaches the second sliding portion 120), movement in the L direction is restricted.

Next, when a linear motion in the R direction is input to the input shaft 100, the second engager 500 comes into contact with the second sliding portion 120 that has moved in the R direction so as to fill the clearance C2, as described above. Thereby, the linear motion of the second sliding portion 120 in the R direction is transmitted to the second engaging element 500. Then, similarly to the case where the linear motion in the L direction is transmitted in the first engager 300 as described above with reference to FIG. It will be pushed by. As a result, the abutting relationship between the second engager 500 and the second inclined surface 227 is released. In this way, the second engager 500 can move in the R direction together with the second sliding portion 120 against the biasing force of the second biasing member 600 in the R direction.

Note that the input shaft 100 moves the second engager 500 in the R direction via the second sliding portion 120 against the urging force of the second urging member 600, so that the second sliding portion 120 comes into contact with the second transmission surface 225 of the output shaft 200, so that the linear motion of the input shaft 100 in the R direction is transmitted to the output shaft 200, as described above.

By the way, the movement of the output shaft 200 in the R direction based on the linear motion of the input shaft 100 is not inhibited based on the relationship between the first engager 300, the first inclined surface 217, and the inner wall 15 of the housing 10. do not have. In the unloaded state, the first engager 300 comes into contact with both the first inclined surface 217 and the inner wall 15 of the housing 10, and its movement in the R direction is restricted, as shown in FIG. ing. Here, when the output shaft 200 moves in the R direction, it is synonymous with the first engager 300 moving in the L direction relative to the output shaft 200, and its movement in the L direction is restricted. Not yet. Therefore, the movement of the output shaft 200 in the R direction is not restricted or inhibited by the first engager 300 or the like.

Next, we will focus on the case where a linear motion in the R direction is input to the output shaft 200. First, in the no-load state, the second engager 500 comes into contact with both the second inclined surface 227 and the inner wall 15 of the housing 10, and movement in the L direction is restricted, as described above. In this state, when a linear motion in the R direction is input to the output shaft 200, the second engager 500 tends to move in the L direction relative to the output shaft 200. However, as described above, since the movement of the second engager 500 in the L direction is regulated by the second inclined surface 227 and the inner wall 15, the linear movement in the R direction input to the output shaft 200 is 100 will not be transmitted.

As described above, the second engager 500 cooperates with the second inclined surface 227 and the inner wall 15 of the housing 10 to allow power transmission in the R direction from the input shaft 100 to the output shaft 200, while outputting This makes it possible to interrupt power transmission of linear motion in the R direction from the shaft 200 to the input shaft 100.

By the way, like the first engaging element 300, the second engaging element 500 can also have a roller shape or a spherical shape. As a result, while smoothly transmitting the power of the linear motion in the R direction from the input shaft 100 to the output shaft 200 described above, the power transmission of the linear motion in the R direction from the output shaft 200 to the input shaft 100 is reliably interrupted. can be done.

1-7. Second biasing member 600
As shown in FIGS. 1 and 2, the second biasing member 600 is arranged between the first sliding portion 110 and the second engaging element 500 along the axial direction. That is, one end of the second biasing member 600 is supported by the first sliding portion 110, and the other end of the second biasing member 600 is in a state in which it is in contact with the second engager 500 and precompressed to a predetermined degree. It will be placed in Thereby, the second biasing member 600 biases the second engager 500 in the direction toward the second sliding member 120.

As the second biasing member 600, similarly to the first biasing member 400, a generally known coil spring or the like can be used.

As described above, the linear lock clutch 1 according to one embodiment transmits the linear motion in the L direction and the R direction input to the input shaft 100 to the output shaft 200, while transmitting the linear motion in the L direction input to the output shaft 200. The first engager 300, the first inclined surface 217, and the inner wall 15 of the housing 10 restrict the movement from being transmitted to the input shaft 100, so that the linear movement in the R direction input to the output shaft 200 is transmitted to the input shaft 100. The second engagement element 500, the second inclined surface 227, and the inner wall 15 of the housing 10 can restrict the transmission of the force to the inner wall 15 of the housing 10.

Note that when transmitting the linear motion in the L direction input to the input shaft 100 to the output shaft 200, the first sliding portion 110 of the input shaft 100 resists the biasing force of the first biasing member 400, as described above. and move in the L direction. Here, focusing on the biasing force of the second biasing member 600, the second biasing member 600 biases the second engager 500 in the direction approaching the second sliding portion 120 (L direction). are doing. A portion of the biasing force of the second biasing member 600 in the L direction toward the second engager 500 is also transmitted to the output shaft 200 via the second inclined surface 227 . Therefore, at least when the output shaft 200 starts to move in the L direction, the biasing force in the L direction originating from the second biasing member 600 is (movement)). Thereby, the initial movement of the output shaft 200 in the L direction can be made smooth.

Similarly, when transmitting the linear motion in the R direction input to the input shaft 100 to the output shaft 200, the second sliding portion 120 of the input shaft 100 is affected by the biasing force of the second biasing member 600, as described above. Move in the R direction against the resistance. Here, focusing on the biasing force of the first biasing member 400, as described above, the first biasing member 400 biases the first engager 300 in the direction (R direction) approaching the first sliding portion 110. are doing. A portion of the biasing force of the first biasing member 400 toward the first engager 300 in the R direction is also transmitted to the output shaft 200 via the first inclined surface 217 . Therefore, at least when the output shaft 200 starts to move in the R direction, the biasing force in the R direction originating from the first biasing member 400 is (movement)). Thereby, the initial movement of the output shaft 200 in the R direction can be made smooth.

2. Modification Next, the configuration of a linear lock clutch 1 according to another embodiment will be described with reference to FIGS. 6 and 7. FIG. 6 is a schematic plan view schematically showing the configuration of the linear lock clutch 1 according to the second embodiment. FIG. 7 is a schematic plan view schematically showing the configuration of the linear lock clutch 1 according to the third embodiment.

2-1. Second Embodiment As shown in FIG. 6, the linear lock clutch 1 according to the second embodiment has almost the same configuration as the linear lock clutch 1 according to the embodiment described above, but in addition to the configuration of the embodiment. The first sliding part 110 and the second sliding part 120 have a guide roller 700 that comes into contact with the inner wall 15 of the housing 10, and are configured to slide along the inner wall 15 via this guide roller 700. has been done. With this configuration, the input shaft 100 can slide more smoothly with respect to the inner wall 15 of the housing 10.

2-2. Third Embodiment As shown in FIG. 7, a linear lock clutch 1 according to a third embodiment has substantially the same configuration as the linear lock clutch 1 according to the embodiment described above (in FIG. Although the guide roller 700 according to the embodiment is also shown, the guide roller 700 may not be provided in the third embodiment). 17 and a separate plate 18 provided separately. The separate plate 18 is used as a member that also serves as the inner wall 15 of the housing 10.

As shown in FIG. 7, the separate plate 18 is connected to a nut 30 or the like as a positioning member, and is mounted in a direction perpendicular to the axial direction (for example, in the width direction in FIG. 7, and in the vertical direction in the plane of the paper in FIG. ) is adjustable. With such a configuration, the abutment relationship between the first sliding part 110 and the inner wall 15 and the second Even if a defect occurs in at least one of the abutting relationships between the sliding portion 120 and the inner wall 15, the position of the separate plate 18 (position in the height direction) can be adjusted with the nut 30, and the first It becomes possible to make the sliding part 110 and the second sliding part 120 come into contact with the inner wall 15 reliably. As a result, the input shaft 100 can be moved reliably in the axial direction.

As mentioned above, various embodiments have been illustrated, but the above embodiments are merely examples and are not intended to limit the scope of the invention. The embodiments described above can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. Moreover, each structure, shape, size, length, width, thickness, height, number, etc. can be changed and implemented as appropriate. Note that in this specification, "height direction" and "width direction" are interchanged if the viewpoint changes.

1 Linear lock clutch 10 Housing 11 Inside of housing 15 Inner wall 17 Main body 18 Separate plate 30 Positioning member 100 Input shaft 110 First sliding part 120 Second sliding part 130 Connection part 200 Output shaft 210 First power transmission part 215 First transmission surface 217 First inclined surface 220 Second power transmission section 225 Second transmission surface 227 Second inclined surface 300 First engager 400 First biasing member 500 Second engager 600 Second biasing member 700 Guide roller P1 First surrounding area P2 Second surrounding area

Claims (6)

A housing with a rectangular cross section,
a first sliding part that slides along the inner wall of the housing; a second sliding part that slides along the inner wall of the housing and is formed at a position spaced apart from the first sliding part in the axial direction; an input shaft having a sliding part and a connecting part connecting the first sliding part and the second sliding part, and into which power is input;
a first transmission surface that is accommodated in an enclosing area surrounded by the first sliding part, the second sliding part, and the inner wall and can come into contact with the first sliding part; and the second sliding part an output shaft having a power transmission section including a second transmission surface that can come into contact with the output shaft, and the power is transmitted from the input shaft;
a first engager that is sandwiched between a first inclined surface formed on the power transmission section and the inner wall and that can come into contact with the first sliding section;
a first urging member disposed between the second sliding part and the first engaging element, and urging the first engaging element in a direction toward the first sliding part;
The second sliding part is disposed on the power transmission part and is sandwiched between the inner wall and a second inclined surface formed at a position different from the position where the first inclined surface is formed. a second engaging element that can come into contact with the
a second urging member disposed between the first sliding part and the second engaging element, and urging the second engaging element in a direction toward the second sliding part;
Equipped with
The first inclined surface has an inclined shape in which a distance from the inner wall gradually decreases as it approaches the first sliding part in the axial direction,
The second inclined surface has an inclined shape in which a distance from the inner wall gradually decreases as it approaches the second sliding part in the axial direction.
Linear lock clutch. The power transmission section in the output shaft is housed in a first surrounding area surrounded by the first sliding section, the second sliding section, and the inner wall, and includes the first transmission surface. and is surrounded by the first sliding part, the second sliding part, and the inner wall, and is accommodated in a second surrounding area formed at a different position from the first surrounding area, and the second transmission surface is a second power transmission section comprising;
the first inclined surface is formed on the first power transmission part,
The linear lock clutch according to claim 1, wherein the second sloped surface is formed on the second power transmission section. The linear lock clutch according to claim 2, wherein the first surrounding area and the second surrounding area are formed at symmetrical positions within the housing with respect to the connecting portion. The linear lock clutch according to any one of claims 1 to 3, wherein the first engager has a roller shape or a spherical shape. At least one of the first sliding part and the second sliding part has a guide roller that comes into contact with the inner wall, and slides along the inner wall via the guide roller. 4. The linear lock clutch according to any one of 4. The housing includes a main body, a separate plate that is provided separately from the main body and also serves as the inner wall, and the separate plate is positioned at a position where it abuts the first sliding part and the second sliding part. The linear lock clutch according to any one of claims 1 to 5, further comprising a positioning member that does.