JP5087465B2 - Braking device - Google Patents

Description

  The present invention relates to an improvement in a braking device that applies braking to a previous movement from a predetermined movement position of a movable body.

  As a sliding door retracting device, it comprises a device main body and an operating member, and the device main body comprises a guide rail portion, a pulling member, a pulling biasing member, and a plurality of rotating dampers provided on the pulling member. Some rotary dampers engage with a rack of a guide rail portion when a pulling member is pulled by a pulling urging member to give a resistance force to the pulling member. (See Patent Document 1)

However, according to the method of Patent Document 1, only the number of rotating dampers meshed with the rack changes depending on the moving position of the sliding door, and depending on the moving speed of the sliding door, the braking force is increased when it is early, and when it is slow. It is not a speed response type braking device that applies a small braking force.
JP 2006-348553 A

  The main problem to be solved by the present invention is that, first, by using two or more sliders supported so as to be movable on the base, a large braking force is applied depending on the speed of the movable body. When it is slow, a small braking force can be applied to the movable body.

  Secondly, using a plurality of damper bodies that apply braking force to the rotation of the pinion, depending on the speed of the movable body, a large braking force is obtained when it is fast, and a small braking force when it is slow. The point is that it can act on the movable body.

In order to achieve the above object, in the present invention, the braking device has the following configurations (1) to (6).
(1) A braking device that is provided on any one of the movable body and a fixed body that movably supports the movable body, and applies braking to the movement of the movable body,
(2) It has two or more sliders and a base that supports these sliders so as to be movable,
(3) One of these sliders is brought into contact with the other side of the movable body and the fixed body at a predetermined movement position of the movable body to apply braking to the movement of the movable body.
(4) The resistance to the movement of all or part of these sliders changes according to the speed of the movable body ,
(5) In addition, the resistance generating means for resistance against the movement of at least one of the two or more sliders is constituted by a rack and a pinion that meshes with the rack and acts on the rotation to apply a braking force, and It was provided on the slider side, and the other of these was provided on the base side .

  According to this configuration, when the moving speed of the movable body going forward from the predetermined moving position is equal to or higher than the predetermined speed, the resistance to the movement of all or part of two or more sliders is increased accordingly. The braking force applied to the movable body is increased, and when the speed of the movable body is lower than the predetermined speed, the resistance to the movement of all or a part of two or more sliders is reduced accordingly. The braking force applied to the body can be reduced.

  According to the braking device according to the first aspect, using two or more sliders supported movably on the base, depending on the speed of the movable body, a large braking force is applied when it is fast, and it is slow. Sometimes a small braking force can be applied to the movable body.

  Further, according to the braking device according to the second aspect, using a plurality of damper bodies that apply a braking force to the rotation of the pinion, depending on the speed of the movable body, When the speed is slow, a small braking force can be applied to the movable body.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to FIGS.

  The braking device 5 according to this embodiment is provided on either the movable body 1 or the fixed body 2 that supports the movable body 1 so as to be movable, and the movable body 1 moves forward from a predetermined movement position. Typically, braking is applied to the forward movement of the movable body 1 from the predetermined forward movement position to the forward movement end position.

  The braking device 5 includes two or more sliders S and a base 40 that supports the sliders S so as to be movable. Then, one of the sliders S contacts the other side of the movable body 1 and the fixed body 2 (the side of the movable body 1 and the fixed body 2 on which the braking device 5 is not provided) at a predetermined movement position. In contact therewith, braking is applied to the movement of the movable body 1 from the predetermined movement position. At the same time, the resistance to the movement of all or part of the sliders S changes according to the speed of the movable body 1.

  One typical configuration example is shown in FIGS. In this example, the braking device 5 is provided on the movable body 1 side. The base 40 includes a pair of walls W, W that continue along the moving direction F of the movable body 1, and the slider S extends along the movement direction F of the movable body 1 between the pair of walls W, W of the base 40. It is stored in a slidable manner. The slider S includes a wide upper part Sa and a narrower lower part Sb, and has a stepped surface Sc facing downward between the upper part Sa and the lower part Sb on both the left and right sides. Each of the pair of walls W, W of the base 40 is formed with a rib-like support portion Wa extending along the moving direction of the movable body 1, and the slider S has a stepped surface Sc on the rib-like support portion Wa from above. It is supported by the base 40 so as to be hooked, so that the stepped surface Sc is slidably contacted with the rib-shaped support portion Wa so as to travel or relatively travel in the base 40 along the moving direction of the movable body 1. It has become. In this example, there are two sliders S, which are arranged adjacent to each other in the moving direction of the movable body 1. (Hereinafter, the slider S positioned on the moving front side of the movable body 1 is referred to as a front slider S ′, and the slider S positioned on the rear side of the moving body 1 is referred to as a rear slider S ″.) In the upper part Sa of the slider S ′, a contacted portion Sd that is in contact with the striker 3 provided in the fixed body 2 is formed at the predetermined movement position. Each of them is provided with resistance generating means R for resistance to the movement, and in this example, the resistance generating means R is constituted by a rack Rc and a pinion Ra that meshes with the rack Rc and acts on the rotation by a braking force. The pinion Ra is provided on the slider S side, and the rack Rc is provided on the base 40. The pinion Ra is rotated around the stator Rb. It is provided in a rotor (not shown) that is supported in a possible manner, and is provided in the slider S so that the rotation axis of the pinion Ra is arranged in the left-right direction by fixing the stator Rb to the lower side surface of the slider S. The rack Rc is formed below the rib-shaped support portion Wa on one wall W side of the base 40. The pinion Ra of the rear slider S ″ is always meshed with the rack Rc. (Hereinafter, this pinion Ra is referred to as a fixed pinion Ra ′.) The pinion Ra of the front slider S ′ is a slider that can rotate between a non-operating position that does not mesh with the rack Rc and an operating position that meshes with the rack Rc. S is provided. In this example, when the speed of the movable body 1 is equal to or higher than the predetermined speed, the pinion Ra of the slider S ′ on the front side moves to the operating position by the action of the operating means G at the predetermined moving position of the movable body 1. Thus, the resistance to the movement of the front slider S ′ is increased by meshing with the rack Rc. (Hereinafter, this pinion Ra is referred to as a movable pinion Ra ″.) Specifically, an interval x is formed between the front slider S ′ and the rear slider S ″ by urging in the moving direction. It is like that. (FIG. 1) At the same time, when the contact portion Sd of the front slider S ′ is abutted against the striker 3 when the speed of the movable body 1 is equal to or higher than a predetermined speed, the interval x resists the bias. The operating means G provided on the rear slider S ″ abuts against the stator Rb so that the movable pinion Ra ″ is moved to the operating position. (FIG. 2) The two sliders S and S are in the state where the pinion Ra is engaged with the rack Rc and the movable body 1 is moved in the base 40 until the speed of the movable body 1 becomes less than a predetermined speed. It travels toward the moving rear side. In this example, the actuating means G is configured to have an arm shape protruding forward from the front portion of the rear slider S ″. In this example, the resistance of the rear slider S ″ is generated. Even when the speed of the movable body 1 is less than a predetermined speed, the fixed pinion Ra as the means R applies a constant braking to the movement of the previous movable body 1 from the predetermined movement position. At the same time, when the speed of the movable body 1 is equal to or higher than the predetermined speed by the rear slider S ″ in which a constant resistance is always applied to the movement by the resistance generating means R in this manner, The actuating means G is caused to function by quickly reducing the distance x between the front slider S ′ and the front slider S ′ in contact therewith, and the braking force applied to the movable body 1 through an increase in resistance to the movement of the front slider S ′. It is supposed to increase.

  5 and 6, the rear slider S ″ is provided with two resistance generating means R and pinions Ra and Ra as R, and one of them is the speed of the movable body 1 at a predetermined speed or more. In this example, the movable pinion Ra ″ is moved to the operating position by the operating means G at a certain time. In this example, the base 40 is provided with racks Rc and Rc in two upper and lower stages, and the movable pinion Ra ″ of the front slider S ′ meshes with the lower rack Rc at the operating position, and the fixed pinion of the rear slider S ″. Ra ′ always meshes with the lower rack Rc, and the movable pinion Ra ″ of the rear slider S ″ meshes with the upper rack Rc at the operating position. Further, the front slider S ′ has an operating means G for the movable pinion Ra ″ of the rear slider S ″ that forms an arm protruding rearward from the rear portion, and the rear slider S ″ has the front portion forward from the front portion. Actuating means G each having an arm shape with respect to the movable pinion Ra ″ of the projecting front slider S ′ is provided. Until the abutted portion Sd of the front slider S ′ is brought into contact with the fixed body 2 side at a predetermined movement position of the movable body 1, there is a gap between the front slider S ′ and the rear slider S ″. An interval x that does not allow each actuating means G to abut against the stator Rb of the other movable pinion Ra ″ is created by urging, and each movable pinion Ra ″ is positioned at a non-acting position (FIG. 5) When the abutted portion Sd of the front slider S ′ is brought into contact with the fixed body 2 at the predetermined movement position in a state where the speed of the movable body 1 is equal to or higher than the predetermined speed, the attachment Against the force, the distance x is narrowed and all the pinions Ra are engaged with the rack Rc (FIG. 6) In this example, when the speed of the movable body 1 is equal to or higher than a predetermined speed, the sliders S Increased resistance to movement There.

  FIGS. 7 and 8 show an example in which the rear slider S ″ is provided with two resistance generating means R and R, and the front slider S ′ is not provided with the resistance generating means R. In the example, a movable pinion Ra ″ as resistance generating means R is provided above the rear slider S ″, and a rack Rc as resistance generating means R is provided below the rear slider S ″. . In this example, the base 40 is provided with a pinion Ra as resistance generating means R that always meshes with the rack Rc of the rear slider S ″, and the movable pinion Ra ″ of the rear slider S ″ is in the operating position. An engaging rack Rc is provided, and the front slider S ′ is provided with an operating means G for the movable pinion Ra ″ of the rear slider S ″ that forms an arm protruding rearward from the rear part. Until the abutted portion Sd of S ′ is brought into contact with the fixed body 2 side at a predetermined movement position of the movable body 1, the front side slider S ′ and the rear side slider S ″ are between the front side slider S ′ and the rear side slider S ″. An interval x that does not allow the operating means G of the slider S ′ to abut against the stator Rb of the movable pinion Ra ″ of the rear slider S ″ is created by urging, and the rear slider S Movable pinion Ra for "is adapted to be located in the non-operating position. (FIG. 7) When the contacted portion Sd of the front slider S ′ is brought into contact with the fixed body 2 side at a predetermined movement position of the movable body 1 in a state where the speed of the movable body 1 is equal to or higher than a predetermined speed, The distance x is reduced against the bias, and the movable pinion Ra ″ of the rear slider S ″ is engaged with the rack Rc. (FIG. 8) In this example, a part of the two or more sliders S is a slider S that does not include the resistance generating means R, and when the speed of the movable body 1 is a predetermined speed or more, Only the resistance to the movement of some of the sliders S increases.

  FIG. 9 and FIG. 10 show an example in which the rear slider S ″ is provided with two resistance generating means R, R, and the front slider S ′ is provided with one resistance generating means R. In the example, the movable pinion Ra ″ as the resistance generating means R is provided above the rear slider S ″, and the friction resistor Rd as the resistance generating means R is provided below the rear slider S ″. ing. Further, a movable pinion Ra ″ as resistance generating means R is provided below the front slider S ′. In this example, the base 40 is slidably contacted with the friction resistor Rd. And an upper rack Rc in which the movable pinion Ra ″ of the rear slider S ″ meshes in the operating position and a lower rack Rc in which the movable pinion Ra ″ of the front slider S ′ meshes in the operating position. In this example, the frictional resistor Rd is provided on the side surface of the slider S, and can be made of a material having a high coefficient of friction such as rubber or elastomer. The portion Re is constituted by a part that is in sliding contact with the frictional resistor Rd over the movement process of the slider S on the wall W of the base 40. Also, in this example. The front slider S ′ has an operating means G for the movable pinion Ra ″ of the rear slider S ″ that forms an arm projecting rearward from the rear portion, and the rear slider S ″ has the front from the front portion. Actuating means G is provided for the movable pinion Ra ″ of the front slider S ′ that forms the protruding arm. The contacted portion Sd of the front slider S ′ is on the fixed body 2 side at a predetermined movement position of the movable body 1. Until the contact between the front slider S ′ and the rear slider S ″, the distance between the front slider S ′ and the rear slider S ″ that does not allow the respective operating means G to abut against the stator Rb of the other movable pinion Ra ″ is x biased. And each movable pinion Ra "is positioned in a non-acting position. (FIG. 9) When the abutted portion Sd of the front slider S ′ is brought into contact with the fixed body 2 at a predetermined movement position in a state where the speed of the movable body 1 is equal to or higher than a predetermined speed, The distance x is reduced against the bias, the movable pinion Ra ″ of the front slider S ′ meshes with the lower rack Rc, and the movable pinion Ra ″ of the rear slider S ″ meshes with the upper rack Rc. (FIG. 10) In this example, when the speed of the movable body 1 is equal to or higher than a predetermined speed, the resistance to the movement of all the sliders S increases.

  According to the braking device 5 concerning each example demonstrated above, when the moving speed of the movable body 1 which goes ahead from the said predetermined moving position is more than predetermined speed, according to this, two or more sliders S When the speed of the movable body 1 is lower than a predetermined speed by increasing the resistance against all or part of the movement to increase the braking force applied to the movable body 1, two or more sliders S are accordingly generated. The braking force applied to the movable body 1 can be reduced by reducing the resistance to the movement of all or part of the movable body 1.

  The number of sliders S constituting the braking device 5 is appropriately changed as necessary. The number of resistance generating means R provided in one slider S is also changed as appropriate. When one slider S is provided with two or more resistance generating means R, each resistance generating means R may be provided on one side of the slider S or separately on the left and right sides of the slider S. Further, the plurality of resistance generating means R may be provided at intervals in the moving direction of the slider S, or may be provided at intervals in a direction orthogonal to the moving direction. The resistance generating means R on the base 40 side corresponding to the resistance generating means R on the slider S side is laid out corresponding to the layout of the resistance generating means R on the slider S side.

(Specific configuration example)
FIGS. 11 to 22 show a more specific configuration example of a latch device configured by applying the present invention. Each concept (the following right side) in a specific configuration example described below corresponds to each concept (the following left side) in the configuration example of the braking device 5 shown in FIGS. 1 to 10 as follows. It is a subordinate concept.
Slider S → Damper unit 50
Resistance generating means R → pinion 53a of damper main body 53 and rack 55
Actuating means G → pressing portion 52e

  11 shows the sliding door 1 ′ provided with the latch device 4 with the braking device 5 according to the embodiment, and FIGS. 12 to 14 show the main part of the sliding door 1 ′ from above. It shows.

  15 shows a state in which the parts constituting the apparatus are separated, and FIG. 16 shows the front end side of the base 40 and the latch body 41 which is also the additional braking unit 51, and the lower part of the latch body 41 is directed upward. It is shown as a state towards FIG. 17 shows the main part of the base 40.

  18 and 19 show the latch body 41 as seen from above, and FIG. 19 shows the latch slider 412 retracted and the latch arm 413 rotated to the engaging position.

  FIGS. 20 to 22 show a section of the sliding door 1 ′ where the device is built, and FIG. 21 shows that the sliding door 1 ′ has moved forward to a predetermined forward position at a speed higher than a predetermined speed. A state in which the distance x between the basic braking unit 52 and the additional braking unit 51 is narrowed is shown. Further, in FIG. 22, the additional braking unit 51 is further added between the additional braking unit 51 and the basic braking unit 52 in the example illustrated in FIGS. 11 to 21, and the braking device 5 is configured by the three damper units 50. An example is shown. Note that the urging means 42 is not shown in FIGS.

  The braking device 5 applies braking to the forward movement from the predetermined movement position of the movable body 1, typically forward movement from the predetermined forward movement position to the forward movement end position of the movable body 1.

  In this embodiment, when the braking device 5 moves the sliding door 1 ′ as the movable body 1 supported by the door frame 2 ′ as the fixed body 2 so as to be openable and closable in a direction to close the sliding door 1 ′. In the middle of this, in combination with a latch device 4 that allows this to self-propel to the closed position where it abuts against the door stop 2a, the sliding door 1 'moves forward from a predetermined forward position (position in FIG. 13) ( Braking is applied to the left side of FIG. 13 (forward movement to the position of FIG. 14). Apart from this, when the sliding device 1 ′ is moved in the opening direction by the latch device 4, the sliding door 1 ′ can be self-propelled from the middle to the fully opened position.

(Latch device 4)
The latch device 4 includes a latch body 41 provided on either the movable body 1 or the fixed body 2 that supports the movable body 1 so as to be able to reciprocate. On the other of the movable body 1 and the fixed body 2, a striker 3 for the latch body 41 is provided.

  In the illustrated example, the striker 3 is provided on the door frame 2 ′ as the fixed body 2, and the latch device 4 is provided on the sliding door 1 ′ as the movable body 1.

  In the illustrated example, the striker 3 is provided in a groove 2c in which the upper end of the sliding door 1 'formed in the upper frame portion 2b of the door frame 2' is accommodated. In the illustrated example, the striker 3 has a groove in the groove 2c at a position spaced from the door contact 2a with respect to the front end 1a of the sliding door 1 'positioned in front of the sliding door 1' when the sliding door 1 'is closed. The upper end side of the shaft is fixed to the bottom of the groove so as to protrude downward from the bottom. (Fig. 21)

  On the other hand, in the illustrated example, the sliding door 1 'is opened at the upper end surface 1b of the sliding door 1' at the upper part thereof and continues long in the moving direction of the sliding door 1 ', and is opened forward at the front end 1a of the sliding door 1'. A built-in space 1c for the latch device 4 is provided, and the latch device 4 is accommodated in the built-in space 1c.

  As a result, when the sliding door 1 ′ is moved in the closing direction to the predetermined forward movement position, the striker 3 enters the built-in space 1c from the front end 1a of the sliding door 1 ′ and is captured by a latch body 41 held at a standby position described later. It has become so. At the same time, when the striker 3 is captured, the latch body 41 is released from the holding state and is moved in a direction away from the front end 1a of the sliding door 1 'by the urging force of the urging means 42 described later. In the illustrated example, the striker 3 provided on the door frame 2 ′ as the fixed body 2 is captured by the latch body 41 at a predetermined forward movement position of the sliding door 1 ′ as the movable body 1. The latch body 41 is relatively moved in the direction away from the front end 1a of the sliding door 1 'by the urging of 42, and the sliding door 1' is moved forward to the closed position which is the forward movement end position. The

  Contrary to the illustrated example, when the striker 3 is provided on the sliding door 1 'side and the latch device 4 is provided on the door frame 2' side, the latch that captures the striker 3 at a predetermined forward movement position of the sliding door 1 '. By the movement of the sliding door 1 ′ toward the forward movement side by the urging of the body 41, the sliding door 1 ′ is self-propelled to the closed position that is the forward movement end position.

  The latch device 4 includes a latch body 41 that is provided so as to be able to travel along the moving direction of the movable body 1, an urging means 42 of the latch body 41, and a latch body against the urging force of the urging means 42. Holding means for holding 41 in the standby position. Then, the latch device 4 causes the latch body 41 at the standby position to be captured at the predetermined forward movement position of the movable body 1 and the holding by the holding means to be released while the striker 3 provided on the other of the movable body 1 and the fixed body 2 is captured. Then, the movable body 1 is caused to self-travel to the forward movement end position by the latch body 41 that travels or is relatively traveled by the urging force of the urging means 42.

  In the illustrated example, the base 40 accommodated in the built-in space 1 c is provided with a latch body 41, an urging means 42, and a holding means, and a braking device 5 to be described later is incorporated so that the sliding door 1 as the movable body 1 is provided. Is provided with a latch device 4 and such a braking device 5.

  In the illustrated example, the base 40 is configured to have an elongated box shape with the upper surface opened. The base 40 is housed in the built-in space 1c so that one end thereof is positioned at the front end 1a of the sliding door 1 'so that the length direction of the base 40 is along the moving direction of the sliding door 1'. The base 40 is provided on the inner surfaces of the pair of side plates 40a and 40a along the moving direction of the sliding door 1 ', and the guide rib 40b continues long along the length direction of the side plate 40a at a position approximately in the middle of the side plate 40a. It has. In the example shown in the figure, the latch body 41 is guided by the guide rib 40b and travels along the length direction of the base 40 in the base 40. The inside of the base 40 functions as a travel lane of the latch body 41. It is supposed to be. Further, a rack 55 constituting the braking device 5 is provided below the one guide rib 40b of the pair of side plates 40a, 40a so that its teeth protrude downward. One end of the base 40 is covered by a front plate portion 40c below the guide rib 40b between the pair of side plates 40a, 40a, and the upper portion is opened above the front plate portion 40c. The striker 3 enters the base 40 from one end thereof.

  On one end side of the base 40, a horizontal plate portion 40d continuous with the upper end of the front plate portion 40c is formed. Reference numeral 40e in the drawing denotes an attachment block that is attached to the rear side of the front plate portion 40c and is screwed to the sliding door 1 'at a portion protruding downward from the lower edge of the base 40.

  Above the horizontal plate portion 40d, a window hole 40f is provided in a penetrating manner in each of the pair of side plates 40a and 40a. Further, the horizontal plate portion 40d is formed with a pair of locked portions 40g and 40g with a gap between the horizontal locked portion 40g and the other locked portion 40g in the width direction of the base 40. The pair of locked parts 40g, 40g are respectively connected to the rear edge of the rear side of the window hole 40f so that the lower edge of the window hole 40f reaches a position approximately in the middle of the window hole 40f in the front-rear direction. It is comprised so that the rib shape formed so that may be bordered may be made. Each of the pair of locked portions 40g and 40g has a hooking surface 40h facing the front end 1a side of the sliding door 1 ′ at the front end thereof, and an inner surface between the hooking surface 40h and the rear end thereof faces the hooking surface 40h. Accordingly, the inclined surface 40i gradually widens the width dimension of the locked portion 40g. In the standby position of the latch body 41, the latch arm 413 of the latch body 41 is positioned at a non-engagement position where the outer portion is inserted into the window hole 40f and the catch portion 413a is not engaged with the striker 3. The lock portion 413d formed on the 413 enters between the engaging surface 40h of the locked portion 40g and the side edge portion on the front side of the window hole 40f and is caught by the locked portion 40g. That is, in the example shown in the figure, the holding means is constituted by the locked part 40g and the lock part 413d.

  The latch body 41 includes a latch base 411, a latch slider 412, and a latch arm 413.

  The latch base 411 is linked to the urging means 42 and is urged by the urging means 42. In the illustrated example, the latch base 411 includes left and right wall portions 411a and 411a and a lower wall portion 411b which are long in the length direction of the base 40, and the interval between the outer surfaces of the left and right wall portions 411a and 411a is set to the base 40. The pair of side plates 40a, 40a is configured to have a long and narrow box shape with an upper surface opening that has a size that allows a small clearance. A bridging piece 411c is formed on the front end side of the latch base 411 between the upper ends of the left and right wall portions 411a and 411a. Between the bridging piece 411c and the lower wall portion 411b, the pivot shaft 413c of the latch arm 413 is formed. Is constructed so that the axis line extends along the vertical direction. The rotation shafts 413c are provided on the left and right sides, and a space is formed between the left rotation shaft 413c and the right rotation shaft 413c. The rear end portion of the latch base 411 is closed by a rear wall portion 411d extending between the left and right wall portions 411a and 411a. Further, a mounting portion for a spring front end of a tension coil spring 42a serving as the biasing means 42 is formed behind the rear wall portion 411d. The spring rear end of the tension coil spring 42 a is attached to a mounting portion 40 k provided on the base 40 on the rear end side of the base 40, so that the spring fits in a space above the guide rib 40 b in the base 40. It has become.

  The latch slider 412 is combined with the latch base 411 so as to be movable back and forth, and is retracted against the urging force by the strike of the striker 3. In the illustrated example, the latch slider 412 includes a head 412a positioned in front of the left and right rotation shafts 413c and 413c of the latch arm 413 and a neck portion 412b passing between the left and right rotation shafts 413c and 413c. And a body part 412c having a front part integrally connected to the head part 412a. The body portion 412c is accommodated in a small space between the inner surfaces of the left and right wall portions 411a and 411a of the latch base 411, and is accommodated in the latch base 411 so as to be slidable in the front-rear direction. In the illustrated example, the latch slider 412 is placed between the rear part of the body part 412c and the rear wall part 411d of the latch base 411, and the latch slider 412 is located between the body part 412c and the neck part 412b. The shoulder portions 412d and 412d are always urged toward the forward positions where the shoulder portions 412d and 412d are brought into contact with the linkage protrusions 413b of the latch arm 413 from the rear.

  The latch arm 413 is rotatably assembled to the latch base 411 and includes a hooking portion 413 a for the striker 3. In the illustrated example, the latch arm 413 includes an engaging portion 413a that protrudes inwardly at the front end thereof, and has a linkage protrusion 413b that protrudes inwardly at the rear end thereof. In the illustrated example, the latch body 41 includes a pair of left and right latch arms 413 and 413, and the right latch arm 413 can rotate to the front end side of the latch base 411 with the right rotation shaft 413 c at the rear end. The left latch arm 413 is pivotally assembled to the front end side of the latch base 411 with the left pivot shaft 413c at the rear end thereof. The latch base 413 protrudes forward from the front end of the latch base 411. 411 is provided.

  In the illustrated example, the linkage protrusion 413b of the left latch arm 413 is accommodated in the linkage recess 412f as a linkage recess 412f between the left jaw portion 412e and the shoulder 412d of the latch slider 412, and The link protrusion 413b of the right latch arm 413 is placed in the link recess 412f as a link recess 412f between the right jaw portion 412e and the shoulder 412d of the latch slider 412, and a pair of latch slider 412 The latch arms 413 and 413 are combined.

  Then, when the latch slider 412 moves backward, the wall portion (jaw portion 412e) facing rearward of the linkage recess 412f presses the linkage projection 413b and the latch arm 413 rotates to the engagement position where the striker 3 engages the engagement portion 413a. In addition, the forward movement of the latch slider 412 causes the wall portion (shoulder portion 412d) facing the front of the link recess 412f to press the link projection 413b so that the latch arm 413 is rotated toward the non-engagement position. It has become.

  Each of the left and right latch arms 413 has a latching portion 413a in front of the movable body 1 on the forward side of the movable body 1 with an interval in the traveling direction of the latch body 41, and a rotating shaft 413c behind the latch portion 413a. In addition, a lock portion 413d is provided between the hook portion 413a and the rotation shaft 413c, with the hook surface 413e facing rearward at the lower portion thereof. In the illustrated example, at the standby position of the latch body 41, the latch arm 413 is located in the window hole 40 f of the base 40, and the portion between the rotation shaft 413 c and the lock portion 413 d of the latch arm 413 is located above the locked portion 40 g. In addition, the lock portion 413d is positioned in front of the locked portion 40g and the outside thereof is inserted. In other words, the locked portions 40g are formed on both sides of the travel center line of the latch body 41.

  When the latch body 41 is located on the most front end side of the base 40 (in the illustrated example, in the vicinity of the front end 1a of the sliding door 1 ′), the linkage protrusion 413b of the latch arm 413 is inward of the rotation shaft 413c of the latch arm 413. Since the latch 413 is pressed from the rear by the shoulder 412d of the latch slider 412 biased forward, the latch arm 413 enters the window hole 40f of the base 40 and the striker 3 between the pair of latch arms 413 and 413 between the engaging portions 413a. It is positioned in the non-engagement position that allows the entry of. At this time, the lock portion 413d of the latch arm 413 is caught by the locked portion 40g of the base 40, and the latch body 41 is located at the most front end side of the base 40, that is, in the standby state with the latch arm 413 positioned at the non-engagement position. Positioned to position. (FIG. 12) The urging force is most accumulated in the urging means 42 at this standby position.

  When the sliding door 1 'is moved forward to the predetermined forward movement position from the state where the latch body 41 is positioned at the standby position, the striker 3 enters the base 40 and passes between the engaging portions 413a of the pair of latch arms 413 and 413. The latch slider 412 is pushed rearward against the head 412a of the latch slider 412 from the front against the urging force. When the latch slider 412 is pushed in in this way, the linkage protrusion 413b of the latch arm 413 is pressed from the front by the jaw portion 412e of the latch slider 412 inward of the rotation shaft 413c of the latch arm 413. The arm 413 is rotated in a direction so as to come out from the window hole 40f of the base 40, and is positioned at an engaging position that prevents the striker 3 from coming out from between the engaging portions 413a of the pair of latch arms 413, 413. At this time, the outer surface of the locking portion 413d of the latch arm 413 enters the inner edge of the engaging surface 40h of the locked portion 40g of the base 40, and the locking portion 413d is disengaged from the locked portion 40g. The holding by is released. (FIG. 13) Thereby, the latch body 41 is relatively moved backward in the base 40 by the urging means in a state where the striker 3 is captured, and the sliding door 1 ′ is forcibly moved to the forward movement end position. . (FIG. 14) In the illustrated example, after the pair of latch arms 413 and 413 are pulled out from the window holes 40f of the base 40, they are continuously positioned at the engagement positions by the inner surfaces of the pair of side plates 40a and 40a of the base 40. The capture of is not unraveled.

  When the sliding door 1 ′ (FIG. 14) in the closed position, that is, the forward movement end position is moved backward toward the predetermined forward movement position, the latch body is moved relatively toward the standby position in the backward movement process. 41 is stored again in the urging means 42, and the latch arm 413 can enter the window hole 40f when the predetermined forward movement position is reached. Therefore, the latch arm 413 is urged by the latch slider 412 urged forward. Is rotated to the non-engagement position to release the striker 3, and the lock portion 413d is again hooked on the locked portion 40g, so that the latch body 41 is again positioned at the standby position. (Fig. 12)

  In the example shown in the figure, the sliding door 1 'is closed when the holding means is released and the latch body 41 has run backward due to the urging force of the urging means without holding the striker 3. Thus, the latch arm 413 is rotated to the non-engagement position for engaging the striker 3 with the engagement portions 413a of the pair of latch arms 413 and 413 of the latch body 41 thus moved rearward. The elastic deformation portions 40j that allow the above are provided on the pair of side plates 40a and 40a of the base 40, respectively. (Fig. 15)

  In the latch device 4, when the movable body 1 is moved forward to a predetermined forward movement position, the striker 3 is abutted against the latch slider 412 of the latch body 41 to rotate the latch arm 413 to the engagement position. Thus, the striker 3 can be captured by the latch body 41, and the holding means is released by this rotation, and the latch body 41 is made to run or relatively run from the standby position by the biasing means. can do. The movable body 1 can be self-running to the forward movement end position by the travel or relative travel of the latch body 41. Since the holding means is released by the rotation of the latch arm 413, the force required for the release and the pushing amount of the latch slider 412 can be reduced as much as possible.

(Braking device 5)
The braking device 5 is configured by supporting two or more damper units 50 movably on the base 40, respectively.

  In the example shown in FIGS. 11 to 21, two damper units 50, 50 are housed in the base 40 so as to be movable in the length direction of the base 40. In this example, one of the two damper units 50, 50 is integrally connected to the lower part of the latch base 411 of the latch body 41 so as to form the damper unit 50 integrally with the latch body 41. . (Hereinafter, this damper unit 50 is referred to as an additional braking unit 51.) The other of the two damper units 50, 50 is located behind the additional braking unit 51. (Hereinafter, this damper unit 50 is referred to as a basic braking unit 52.)

  In the example shown in FIGS. 11 to 22, the additional braking unit 51 is brought into contact with the fixed body 2 side, in this example, the striker 3 in a predetermined forward movement position of the movable body 1.

  The additional braking unit 51 includes a block portion 51a that fits in a space below the guide rib 40b in the base 40 by integrally connecting an upper portion to a lower portion of the latch base 411 that is substantially fitted between the pair of side plates 40a, 40a of the base 40. Have. The horizontal dimension of the block portion 51a is smaller than the horizontal dimension of the latch base 411, and downward sliding contact surfaces 51c are formed between the latch base 411 and the block portion 51a on the left and right, respectively. The additional braking unit 51 is slidably supported in the base 40 so that the left and right sliding contact surfaces 51c and 51c are hooked on the corresponding guide ribs 40b from above.

  On the other hand, the basic braking unit 52 has a plate-like head portion 52a having a width that fits between the pair of side plates 40a, 40a of the base 40 and a base portion integrally connected to the lower portion of the plate-like head portion 52a. 40 has a block portion 52b that fits in a space below the guide rib 40b. The horizontal dimension of the block portion 52b is smaller than the horizontal dimension of the plate-shaped head portion 52a, and a sliding contact surface 52d facing downward is provided between the plate-shaped head portion 52a and the block portion 52b. The basic braking unit 52 is slidably supported in the base 40 so that the left and right sliding contact surfaces 52d and 52d are respectively hooked on the corresponding guide ribs 40b from above.

Each of the two damper units 50 and 50 includes a damper main body 53 having a pinion 53a that applies a braking force to the rotation of the pinion 53a.
On the other hand, the base 40 is provided with the rack 55 for the pinion 53a of the damper main body 53 as described above.
According to the speed of the movable body 1 (that is, according to the magnitude of the kinetic energy of the movable body 1), specifically, depending on the speed of the sliding door 1 ′ at a predetermined forward movement position, The number of damper units 50 that engage the pinion 53a is changed.

  In the example shown in FIGS. 11 to 21, the basic braking unit 52 includes a damper main body 53 having a pinion 53 a that is rotated about a rotation axis along the left-right direction on one surface side of the block portion 52 b. And the base 40 side so that the pinion 53a of the damper main body 53 is always meshed with the rack 55 formed on the lower side of the guide rib 40b formed on one of the pair of side plates 40a, 40a. Is combined with.

  On the other hand, the additional braking unit 51 is movably provided with a damper main body 53 including a pinion 53a that rotates about a rotation axis along the left-right direction on one surface side of the block portion 51a. When the speed at the predetermined forward position of the sliding door 1 ′ as the movable body 1 is less than the predetermined speed, the damper main body 53 is positioned at a separation position where the pinion 53 a is not engaged with the rack 55 by urging. It has become.

  Specifically, the damper main body 53 of the additional braking unit 51 is supported by the block 51a so as to be rotatable about a rotation shaft 51d extending in the left-right direction on one side across the rotation center of the pinion 53a. Yes. In the illustrated example, the damper main body 53 is fitted into the holding recess 51f of the movable base 51e provided with the holding concave 51f of the damper main body 53 and integrated with the movable base 51e to form the damper main body 53. Yes. The movable base 51e is assembled at its front part to the block part 51a so as to be rotatable with the rotation shaft 51d. Further, between the rotation shaft 51d of the movable base 51e and the rotation center of the pinion 53a, and above the movable base 51e, one end of the spring is pressed against the side of the movable base 51e from above, from above. The movable base 51e, that is, the damper main body 53 is attached at a spaced position where the lower side portion of the movable base 51e hits the lower regulating wall 51h of the block 51a and a space is provided between the upper end of the pinion 53a and the rack 55. A torsion coil spring (hereinafter, this spring is referred to as first spring means 51i) is provided.

  Further, in this embodiment, the basic braking unit 52 and the additional braking unit 51 are connected in a state where an interval x is opened by urging. Specifically, in the illustrated example, a compression coil spring is interposed between the rear end 51 b of the block portion 51 a of the additional braking unit 51 and the front end 52 c of the block portion 52 b of the basic braking unit 52. (Hereinafter, this spring is referred to as second spring means 54.) The spring forms an interval x between the basic braking unit 52 and the additional braking unit 51.

  Further, the basic braking unit 52 is formed with a pressing portion 52e against the damper main body 53 of the additional braking unit 51, and the basic braking unit 52 and the additional braking unit 51 in a state where the gap x is formed by the pressing portion 52e. And are connected. Specifically, in the illustrated example, a pressing portion 52e having a horn shape protruding forward is formed below the engaging portion with the second spring means 54 at the front end 52c of the block portion 52b of the basic braking unit 52. On the other hand, the block portion 51a of the additional braking unit 51 is formed with a receiving hole 51j for the pressing portion 52e that opens rearward at the rear end 51b of the block portion 51a and continues forward. The block 51a is formed with a window hole 51k communicating with the receiving hole 51j from the side. (FIGS. 21 and 21) An engaging projection 52f formed in the middle of the pressing part 52e is formed in the window hole 51k. By engaging and engaging, the basic braking unit 52 and the additional braking unit 51 are connected in a state where an interval x is opened by the biasing.

  In this embodiment, when the speed of the movable body 1 at the predetermined forward movement position is equal to or higher than the predetermined speed, the basic braking unit 52 that always meshes the pinion 53a of the damper main body 53 with the rack 55. The distance x with the additional braking unit 51 is reduced against the bias, and the damper main body 53 of the additional braking unit 51 is moved by the pressing portion 52e to a position where the pinion 53a is engaged with the rack 55. Yes. (FIG. 21) Specifically, in the illustrated example, the receiving hole 51j is also opened at a position facing the rear end side 51g of the movable base 51e of the additional braking unit 51, and the movable body in a predetermined forward movement position. When the basic braking unit 52 is moved forward by the distance x against the bias of the second spring means 54 when the speed of 1 is equal to or higher than a predetermined speed, the pressing portion 52e The movable base 51e is rotated against the urging force of the first spring means 51i until the front end presses against the rear end 51g of the movable base 51e and the damper main body 53 engages the pinion 53a with the rack 55. It has become so. (FIG. 21) After that, when the speed of the movable body 1 becomes less than a predetermined speed, the basic braking unit 52 is moved rearward by the interval x by the biasing of the second spring means 54, and the pressing portion 52e Since the front end does not press the rear end side 51g of the movable base 51e, the damper main body 53 is rotated by the biasing force of the first spring means 51i to the separation position. (Fig. 21)

  More specifically, in the example shown in FIGS. 11 to 21, the force applied to the sliding door 1 ′ by the urging means 42 is E1 and the force for moving the sliding door 1 ′ in the closing direction. E2 is a force for positioning the damper main body 53 at the separated position by the first spring means 51i at E3, and E4 is a force for maintaining the distance x between the basic braking unit 52 and the additional braking unit 51 by the second spring means 54. When E1 + E2> E3 + E4, the pinion 53a of the damper main body 53 of the basic brake unit 52 and the additional brake unit 51 is engaged with the rack 55 to move the sliding door 1 ′ as the movable body 1 by the two damper main bodies 53. When braking is applied and E1 + E2 <E3 + E4, only the pinion 53a of the damper main body 53 of the basic braking unit 52 is attached to the rack 55. Engage allowed by adapted to apply braking by one damper body 53 to move the sliding door 1 'as the movable member 1.

  Thereby, in this example, when the speed of the sliding door 1 ′ as the movable body 1 from the predetermined forward movement position to the forward movement end position is equal to or higher than the predetermined speed, the sliding door 1 ′ is changed accordingly. The applied braking force is increased, and when the speed of the sliding door 1 ′ is equal to or lower than a predetermined speed, the braking force applied to the sliding door 1 ′ can be decreased accordingly. When the sliding door 1 ′ is moved backward, the basic braking unit 52 that always engages the rack 55 with the pinion 53 a is subjected to a force opposite to that when the sliding door 1 ′ moves forward. The distance x with the braking unit 51 is not narrowed, and only the braking force of the damper main body 53 of the basic braking unit 52 is applied to this backward movement.

  FIG. 22 shows an example in which the additional braking unit 51 is further arranged between the latch body 41 as the additional braking unit 51 and the basic braking unit 52 in the damper unit 50. In this example, the intermediate additional braking unit 51 is provided with a pressing portion 52e against the damper main body 53 of the latch body 41 as the additional braking unit 51. In this case, according to the speed of the movable body 1, the number of the damper main bodies 53 that mesh the pinions 53 a with the rack 55 can be varied in the range of 1 to 3.

  In the illustrated example, the damper main body 53 includes a rotor 53b and a stator 53c that rotatably supports the rotor 53b, and causes the viscous resistance of a fluid such as silicon oil enclosed in the stator 53c to act on the rotation of the rotor 53b. It is configured as a so-called rotary damper. Regardless of such viscous resistance, for example, a structure is provided between the rotor 53b and the stator 53c so as to be in sliding contact with the rotation of the rotor 53b so that a certain frictional resistance is generated in the rotation of the rotor 53b. Also good. The pinion 53a is assembled to the outer end located outside the stator 53c of the rotor 53b so that the rotation axis of the rotor 53b becomes the rotation axis of the pinion 53a.

Configuration diagram of first configuration example of braking device 5 Configuration diagram of first configuration example of braking device 5 AA line sectional view in FIG. BB sectional view in FIG. Configuration diagram of second configuration example of braking device 5 Configuration diagram of second configuration example of braking device 5 Configuration diagram of third configuration example of braking device 5 Configuration diagram of third configuration example of braking device 5 Configuration diagram of fourth configuration example of braking device 5 Configuration diagram of fourth configuration example of braking device 5 The perspective block diagram which showed the specific example which applied the latch apparatus 4 and the braking device 5 to the sliding door 1 ' The principal part plane block diagram of sliding door 1 ' The principal part plane block diagram of sliding door 1 ' The principal part plane block diagram of sliding door 1 ' Exploded perspective view of the latch device 4 and the braking device 5 Perspective configuration diagram Perspective configuration diagram Plan view of the latch body 41 Plan view of the latch body 41 Main part longitudinal cross-section block diagram of sliding door 1 ' Main part longitudinal cross-section block diagram of sliding door 1 ' The main part longitudinal cross-section block diagram of the sliding door 1 '(The example which made a part of structure different from the example of FIGS. 11-21)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Movable body 2 Fixed body 40 Base 5 Braking device 50 Damper unit 53 Damper main body 53a Pinion 3 Striker

Claims (5)

A braking device provided to either one of a movable body and a fixed body that movably supports the movable body, and applies braking to the movement of the movable body,
It has two or more sliders and a base that supports each of these sliders so that they can move.
One of these sliders is brought into contact with the other side of the movable body and the fixed body at a predetermined movement position of the movable body to apply braking to the movement of the movable body.
Depending on the speed of the movable body, the resistance to the movement of all or part of these sliders changes ,
In addition, the resistance generating means for the resistance against the movement of at least one of the two or more sliders is constituted by a rack and a pinion that meshes with the rack and acts on a rotation to apply a braking force, and any one of them is on the slider side. A braking device characterized in that the other is provided on the base side . At least one of the two or more sliders, while being constituted by the sliding contact portion of the frictional resistance and the frictional resistance, allowed with one of these sliders side and base side of these other The braking device according to claim 1, further comprising resistance generating means for resistance against movement of the slider .   3. An operating means that acts on the resistance generating means so as to generate resistance by the resistance generating means when the speed of the movable body is equal to or higher than a predetermined speed. The braking device described in 1. An interval is formed by biasing between adjacent sliders in the moving direction,
4. The braking device according to claim 3, wherein the actuating means acts on the resistance generating means when the interval is narrowed against the bias.   The actuating means is provided on one of the adjacent sliders, and the other is provided with a resistance generating means that is movable between the non-operating position and the operating position. The braking device according to claim 4, wherein the braking device is configured such that the resistance generating means is moved to an operating position by striking at a certain time.

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