CN215423119U - Lacing device and swing arm-lug structure thereof - Google Patents
Lacing device and swing arm-lug structure thereof Download PDFInfo
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- CN215423119U CN215423119U CN202120187524.1U CN202120187524U CN215423119U CN 215423119 U CN215423119 U CN 215423119U CN 202120187524 U CN202120187524 U CN 202120187524U CN 215423119 U CN215423119 U CN 215423119U
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Abstract
The utility model provides a lacing device and a swing arm-lug structure thereof, wherein the lacing device adopts the swing arm-lug structure to realize the tightening and loosening of a lacing, the swing arm-lug structure allows a rotary cover and a winding wheel to rotate in the clockwise direction and the anticlockwise direction, and the tightness experience of fine adjustment of the lacing is good.
Description
Technical Field
The utility model relates to the field of lacing systems, in particular to a lacing device and a swing arm-lug structure thereof.
Background
There are currently a variety of mechanisms and methods for tightening articles such as footwear, but adjusting the tightness of the lace requires loosening the lace and then retightening, may require several cycles, and is cumbersome and time consuming to use. Accordingly, there remains a need for improved lacing arrangements and methods.
SUMMERY OF THE UTILITY MODEL
The present invention provides a lacing device, comprising: the winding device comprises a rotary cover, a winding wheel and a sleeve, wherein the rotary cover is rotatably arranged on the sleeve, and the winding wheel is supported by the sleeve and can rotate relative to the sleeve; wherein the content of the first and second substances,
one or more convex blocks are arranged on the rotary cover along the circumference;
the reel is configured to wind the lace when rotated in a tightening direction and release the lace when rotated in a loosening direction;
the sleeve is provided with one or more swing arms along the circumference; the swing arm comprises a swing arm tail end and a swing arm beam, and the swing arm tail end extends along the radial direction of the circumference where the swing arm is located; the tail end of the swing arm can move between a first position, a second position or between the first position and a third position, and the second position and the third position are respectively arranged on two sides of the first position;
the swing arm is configured to screw a cap in a tightening direction when a swing arm tip engages the tab in the first position, the cap and a take-up wheel rotating in the tightening direction to tighten a lace; when the swing arm end is in the first position engaging the tab, the spinning cap is twisted in a loosening direction, and the spinning cap and the take-up wheel are rotated in the loosening direction to loosen the lace.
Preferably, the swing arm is configured to screw the screw cap in a tightening direction when the swing arm end is in the first position engaging the tab, the swing arm end moving away from the first position to the second position to allow the screw cap and reel to rotate in the tightening direction to tighten the lace; when the rotary cover is screwed along the loosening direction, the tail end of the swing arm moves away from the first position to the third position, and the rotary cover and the wire winding wheel rotate along the loosening direction to loosen the tying belt.
Preferably, the swing arm end is reciprocally movable between a first position and a second position when the screw cap is screwed in the tightening direction.
Preferably, the swing arm end is reciprocable between a first position and a third position upon screwing the closure in the unscrewing direction.
For purposes of this application, rotation of the cap from the first position toward the second position is in the direction of tightening of the lace arrangement; the rotary cover rotates from the first position to the third position to be the loosening direction of the lacing device.
Specifically, the external force transmitted to the protrusion may be divided into an external force transmitted from the screw cap and an external force transmitted due to the pulling force of the lace. Under the state of tightening the frenulum, external force in the direction of can loosening through frenulum pulling force transmission unavoidably in the motion process, but this kind of external force through frenulum pulling force transmission can produce the loss owing to pass through a plurality of part transmissions to and the transmission of moment for the torsion that transmits to the lug diminishes, so the power of loosening through frenulum pulling force transmission alone is difficult to let the spiral cover reversal under the general condition, so the frenulum device can prevent unexpected the unclamping to a certain extent. And the external force directly exerted by the screw cap is consistent with the joint trend of the lug and the tail end of the swing arm along the tightening direction and the loosening direction, so that the screw cap and the winding wheel can rotate along the tightening direction and the loosening direction when the external force is exerted by screwing the screw cap.
Preferably, the swing arm end includes a tab abutment for engaging the tab.
Preferably, the tail end of the swing arm is integrally formed.
Preferably, the orthographic projection of each bump is substantially symmetrical in the radial direction of the circumference on which the bump is located. The basic symmetry refers to a structure which allows the screw cap to rotate in two directions along loosening and tightening under the condition that the screw cap is screwed by applying external force when the tail end of the swing arm is jointed with the lug; the complete symmetry and the slight difference can realize the bidirectional rotation of the screw cap.
Preferably, the orthographic projection shape of the bump is one of an isosceles triangle, a semicircle, an isosceles trapezoid, an arch, a wave, a sector, a rectangle and a square.
Preferably, a groove is formed by adjacent bumps, the groove comprises a first side wall and a second side wall, and the difference of the included angles formed by the tangent line of the straight line or the extension direction of the first side wall and the second side wall and the radius of the vertex or the center of the vertex of the groove is-10 degrees to +10 degrees.
The first side wall and the second side wall of the groove formed by the adjacent bumps form a barrier for the bidirectional movement of the pawl, the inclination degrees of the first side wall and the second side wall are slightly different, so that the resistance encountered by the pawl when the pawl is displaced towards two sides is different, although the pawl can move in two directions, the resistance in one direction is larger, and the accidental disconnection of the lace under the loosening force transmitted by the lace is favorably prevented.
The smaller the included angle formed by the side wall and the radius of the top point or the top center of the groove is, the higher the inclination of the side wall is, the larger the resistance force applied to the movement of the tail end of the swing arm to the side is, and the better the direction is set as the loosening direction.
Preferably, the lug abutting part and the groove between the adjacent lugs are matched in shape, so that the lug abutting part can be embedded into the groove to realize the joint of the tail end of the swing arm and the lug.
Preferably, the lug protrudes and extends inwards along the radial direction of the circumference; the swing arm ends extend radially outward along the circumference.
The radial extension of the swing arm tail end along the circumference where the swing arm is located is defined as: the orthographic projection symmetry axis of the tail end of the swing arm extends along the radial direction of the circumference where the swing arm is located.
The orthographic projection is obtained by projecting a parallel projection line perpendicular to the projection plane onto the projection block or the swing arm by taking the circumferential surface parallel to the projection block or the swing arm as the projection plane.
Preferably, the bump is a circumferential bump or a segmented bump. The peripheral bumps are bump structures which are uniformly distributed along the circumferential direction for 360 degrees; the segmented bumps, in some embodiments, are three-segment bump structures and three-segment bump-less structures, wherein the segments are of equal length, and the bump structures and the bump-less structures are circumferentially spaced apart.
Preferably, the swing arm is made of an integrated molding.
In this application swing arm one end is fixed (hereinafter referred to as "swing arm stiff end"), and one end is the free swing end, namely swing arm end. The casing is provided with one or more swing arms along the circumference, which means that the fixed ends of the one or more swing arms are positioned on the same circumference of the casing.
Preferably, one end of the swing arm is fixedly connected with the sleeve. The swing arm fixing end refers to one end of the swing arm beam fixedly connected with the sleeve.
Preferably, the swing arm beam is one of a swing type and a flexure type.
The swing type swing arm beam refers to that when the tail end of the swing arm swings from the first position to the second position or the third position to give way to the lug, the whole or most of the swing arm beam deviates, the swing giving way is taken as a main part, and the tail end of the swing arm is driven to swing clockwise or anticlockwise so as to allow the protruding end of the lug to cross the top of the lug abutting part. The displacement of the oscillating swing arm beam is dominated by the oscillation, but partial radial deflection is not excluded. The degree of radial deflection of the "pendulum" swing arm beam is related to the material composition and structural design of the swing arm beam.
For a swing arm with a swinging swing arm beam, once the protruding end of the cam passes over the top of the cam abutment, the swing arm tip swings back counterclockwise or clockwise and engages into the groove between the cams (first position), so that the cams are pushed one step in the direction of rotation; after each step, the tail end of the swing arm quickly swings back to the first position to be jointed with the lug again, and the rotary cover is prevented from rotating under the action force below the critical value.
Preferably, the swing type swing arm beam and the tail end of the swing arm are integrally formed.
Preferably, the swing arm is provided with a swing arm beam, and the whole swing arm extends along the radial direction of the circumference where the swing arm is located.
The design of the swing arm with the swing type swing arm beam can refer to the design of a cantilever beam in engineering, wherein one end of the cantilever beam is a fixed end, and the other end of the cantilever beam is a free end. Deflection of an elongated object (e.g., a beam or column) refers to the amount of displacement of each point on its axis in the plane normal to the axis at that point during deformation. In order to better realize the function of tightening the lace, the deflection of the swing arm is required to be as large as possible under the action of the bending stress on the tail end of the swing arm.
According to the flexibility research of the cantilever beam with the variable cross section, the flexibility at a certain section of the cantilever beam is known as the (L/R)2Approximately proportional to the modulus of elasticity E of the cantilever beam material, inversely proportional to the plane of the cross-sectionProduct S is approximately inversely proportional; wherein L is the length of the cantilever beam, and R is the diameter width of the fixed end of the cantilever beam. The swing arm can be a long and thin beam with equal section or a beam with variable section; the variable cross-section cantilever beam structure with the dimension of the free end smaller than that of the fixed end is preferred.
Preferably, the swing arm is of a straight beam structure with a uniform section, and the length-diameter ratio L/D of the swing armiIs 4 to 12. Wherein D isiThe diameter of the section inscribed circle of the swing arm. The swing arm is of a long and thin structure with a uniform cross section, and when the tail end of the swing arm is subjected to bending stress, the deflection of the swing arm is large.
Preferably, the constant-section swing arm comprises one of a cylindrical swing arm, a prismatic swing arm and a round bar type swing arm. The round bar shape is a three-dimensional shape with an arched upper top surface and an arched lower top surface and a cylindrical side surface; the cylindrical swing arm is in a three-dimensional shape with round upper and lower top surfaces.
Preferably, the maximum sectional area of the lug abutting part in the variable-section swing arm is smaller than the sectional area of the fixed end of the swing arm.
Preferably, the swing arm is a straight beam structure with a gradually-changed section. The deflection of the part with smaller sectional area in the swing arm with the gradually-changed section is larger, so that the deflection of the tail end of the swing arm is the largest.
Preferably, the swing arm is of a frustum structure, and the frustum structure comprises one of a circular truncated cone, a trapezoidal frustum and a pyramid frustum structure.
Preferably, the swing arm tail end and the swing arm beam are made of the same material. The swing arm material can be of a solid structure or a hollow structure.
The flexible swing arm beam is characterized in that when external force is applied to screw the screw cap, the tail end of the swing arm basically does not deform in a flexible mode, side wall extrusion force of the bump is transmitted to the swing arm beam through the tail end of the swing arm, the swing arm beam flexes inwards in the radial direction and drives the tail end of the swing arm to move inwards in the radial direction, and therefore the protruding end of the bump is allowed to cross the top of the bump abutting portion.
For a swing arm with a flexing swing arm beam, once the protruding end of the tab clears the top of the tab abutment (second or third position), the swing arm beam springs back radially outward and drives the swing arm tip back and snap into the groove between the tabs. So that the projection is advanced one step in the direction of rotation; wherein after each step, the swing arm snaps back to the first position to reengage the tab, preventing rotation of the cap under a force below a threshold value.
Preferably, the extending direction of the swing arm beam is different from the extending direction of the swing arm tail end.
Preferably, the swing arm beam extends along a curved path. The length of the swing arm beam can be prolonged by the curve extension of the swing arm beam, so that the flexural deformation performance of the swing arm beam is improved.
Preferably, the swing arm beam extends in a circumferential direction of a concentric circle of a circumference on which the swing arm is located.
Preferably, the swing arm tail end and the swing arm beam are made of the same material.
Preferably, a swing arm ring is fixedly arranged on the sleeve, the swing arm ring comprises an annular base portion arranged at the center, and one or more swing arms extend and are connected to the periphery of the annular base portion.
Preferably, the annular base is detachably provided on the sleeve.
Further preferably, the annular base is fixedly arranged on the sleeve by a snap structure.
Preferably, the buckling structure and the swing arm are arranged on the outer periphery of the annular base at intervals.
Preferably, the sleeve is fixed directly to the object to be tied. The objects to be fastened include shoes, hats, bags and the like.
Preferably, the lacing arrangement further comprises a base, the sleeve being secured to the base, the base being secured to the object to be laced.
Preferably, the winding wheel may be integrally formed with the screw cap, or fixedly connected to or detachably connected to the screw cap. When the winding wheel is connected to the rotary cover, the rotation of the rotary cover can drive the winding wheel to rotate.
Preferably, an annular platform is arranged on one end face of the shell, and one end of the one or more swing arms is fixed on the annular platform. The annular platform is used for supporting the one or more swing arms.
Preferably, the annular base of the swing arm ring is fixedly arranged on the annular platform.
Preferably, the annular base is fixedly arranged on the inner periphery of the annular platform through a buckle structure; the one or more swing arms are supported from an end face of the annular platform.
Preferably, the one or more swing arms are spaced apart from the snap structure.
Preferably, the lug abutting part at the tail end of the swing arm is arranged on the outer periphery of the annular platform in a protruding mode. The lug abutting part is arranged in a protruding mode and can be embedded into the groove between the lugs, and therefore the tail end of the swing arm is connected with the lugs.
Preferably, the swing arm ends of the one or more swing arms extend radially along the circumference of the annular base. The circumference of the annular base and the circumference of the lug are concentric circles.
Preferably, the rotary cover is provided with a peripheral bump or a segmented bump, the rotary cover is provided with a cavity with a buckling position, and the cavity can at least accommodate the peripheral bump or the segmented bump.
In a preferred embodiment, the inner wall of the cavity of the screw cap is provided with a circumferential bump along the circumference. Correspondingly, telescopic swing arm ring is including the annular base that the center set up, annular base periphery extends and is connected with one or more swing arm, the swing arm includes swing arm end and swing arm roof beam, the swing arm end can realize joint or separation with the lug on the spiral cover.
Preferably, the cam and the swing arm are axially engaged and disengaged by a shift structure. The lug and the swing arm tail end are jointed and separated in the radial direction at the first position, the second position and the third position; and the gear structure realizes the engagement and the disengagement of the lug and the swing arm in the axial direction, and the engagement of the lug and the swing arm in the axial direction is the basis for realizing the engagement and the disengagement of the lug and the swing arm in the radial direction. By axially joined, it is meant that the lug and the swing arm are co-located in the same plane. When the lug is axially engaged with the swing arm in the present application, the circumference of the annular base and the circumference where the lug is located are concentric circles.
The gear structure can provide at least two gears. For example, pressing down on the screw cap produces a first gear, and the lug is engaged with the tail end of the swing arm; and pulling up the screw cap to generate a second gear, wherein the lug is axially separated from the tail end of the swing arm.
Specifically, when the screw cap is pressed down, the screw cap is connected with the winding wheel in a matching manner, the lug of the screw cap is connected with the tail end of the swing arm of the sleeve, and the lacing system is in a first gear state at the moment. In the shift state, when the screw cap is screwed in the tightening direction, the wire band is wound around the winding wheel in the tightening direction, and when the screw cap is screwed in the loosening direction, the winding wheel is rotated in the loosening direction to release the lace.
When the spiral cover is pulled up, the spiral cover is disconnected from the winding wheel, the swing arm is separated from the bump, and the spiral cover and the winding wheel can freely rotate clockwise or anticlockwise at the moment, so that the frenulum can be automatically loosened.
Preferably, the lug abutting part and the upper surface of the lug are provided with a chamfer. When the screw cap is pressed down, the inclined plane has a sliding guiding function, and the tail end of the swing arm is favorably butted with the bump smoothly.
The preferred embodiments of the shift switching structure, the winding wheel structure and the connection of the winding wheel and the rotary cover, which are not mentioned in the present application, refer to the content of the patent document CN208993976U, the relevant content of which is fully incorporated in the present application, wherein the rotary cover in the present application corresponds to the upper cover in the patent CN208993976U and the winding wheel in the present application corresponds to the winding slot in the patent CN 208993976U.
The utility model discloses a tying belt device based on a swing arm-lug-stop block structure, wherein a swing arm is positioned on a sleeve, a lug is positioned on a screw cap, and the screw cap can rotate relative to the sleeve, namely the lug can rotate relative to the swing arm; but the motion is relative, and the swing arm also can rotate for the lug, only need at this moment with the swing arm setting on spiral cover, the lug sets up and also can realize the frenulum function on the sleeve.
The present invention also provides a lacing device, comprising: the winding device comprises a rotary cover, a winding wheel and a sleeve, wherein the rotary cover is rotatably arranged on the sleeve, and the winding wheel is supported by the sleeve and can rotate relative to the sleeve; wherein the content of the first and second substances,
the sleeve is provided with one or more projections along the circumference;
the reel is configured to wind the lace when rotated in a tightening direction and release the lace when rotated in a loosening direction;
one or more swing arms are arranged on the rotary cover along the circumference; the swing arm comprises a swing arm tail end and a swing arm beam, and the swing arm tail end extends along the radial direction of the circumference where the swing arm is located; the tail end of the swing arm can move between a first position, a second position or between the first position and a third position, and the second position and the third position are respectively arranged on two sides of the first position;
the swing arm is configured to screw a cap in a tightening direction when a swing arm tip engages the tab in the first position, the cap and a take-up wheel rotating in the tightening direction to tighten a lace; when the swing arm end is in the first position engaging the tab, the spinning cap is twisted in a loosening direction, and the spinning cap and the take-up wheel are rotated in the loosening direction to loosen the lace.
The present invention also provides a swing arm-lug structure for a strap apparatus, comprising:
one or more circumferentially disposed lugs;
the swing arm comprises a swing arm tail end and a swing arm beam, and the swing arm tail end extends along the radial direction of the circumference where the swing arm is located; the swing arm end is configured to engage the tab in a first position, the swing arm end being movable between the first position, a second position, or a first position and a third position, the second position and the third position being disposed on opposite sides of the first position;
the swing arm end is configured to disengage from the lug in a second position to allow the lug to rotate in a tensioning direction under a tensioning force; the swing arm end is configured to disengage from the tab in a third position to allow the tab to rotate in a release direction under a release force.
Preferably, the orthographic projection of each bump is substantially symmetrical in the radial direction of the circumference on which the bump is located.
Preferably, the orthographic projection shape of the bump is one of an isosceles triangle, a semicircle, an isosceles trapezoid, an arch, a wave, a sector, a rectangle and a square.
Preferably, the lug protrudes and extends inwards along the radial direction of the circumference; the swing arm ends extend radially outward along the circumference.
Preferably, the swing arm end includes a tab abutment for engaging the tab.
Preferably, the lug abutting part and the groove between the adjacent lugs are matched in shape, so that the lug abutting part can be embedded into the groove to realize the joint of the tail end of the swing arm and the lug.
Preferably, the tail end of the swing arm is integrally formed.
Preferably, the swing arm beam is one of a swing type and a flexure type.
Preferably, the swing type swing arm beam and the tail end of the swing arm are integrally formed.
Preferably, the swing arm is provided with a swing arm beam, and the whole swing arm extends along the radial direction of the circumference where the swing arm is located.
Preferably, the flexible swing arm beam is configured to be flexible radially inward along a circumference of the swing arm to move the swing arm end to the second position or the third position.
Preferably, the flexure swing arm beam extends along a curved path.
Preferably, the flexure type swing arm beam extends in a circumferential direction of a concentric circle of a circumference on which the swing arm is located.
Preferably, the one or more swing arms are fixedly disposed on an annular base.
Preferably, one or more swing arms having a swing arm beam extend radially outwardly along the circumference of the annular base.
Preferably, the swing arm ends of the one or more swing arms with the flexure-type swing arm beam extend in the circumferential direction of the annular base.
Preferably, the one or more swing arms and the annular base are integrally formed. The one or more swing arms and the annular base form a swing arm ring.
The beneficial effects of the utility model comprise the following aspects:
1. the basic symmetrical structure of the swing arm-lug ensures that the lacing device can rotate along two directions of tightening and loosening the lacing when external force is applied through the screw cap; but to some extent prevents accidental release under the release force applied by the pulling force of the lace;
2. the lacing device using the swing arm-lug structure increases the way of loosening the lacing by screwing the screw cap in the loosening direction, in addition to the way of tightening and loosening the lacing using the shift structure; screwing the screw cap in the loosening direction is more suitable for fine adjustment of the tightness of the tying band when the tying band is tightened, the gear structure is more suitable for complete loosening of the tying band, and the user experience can be better improved by the scene application of two loosening modes;
3. the flexible swing arm beam can increase the mobility of the tail end of the swing arm to a greater extent, so that labor is saved when the screwing rotary cover rotates along the tensioning direction, and the hand feeling and the use experience of a user are improved;
4. the lacing device provided by the utility model is particularly suitable for people who are inconvenient to bend down and exercise for a long time to use shoes or lacing systems of bags, clothes and the like, and the loosening force applied by the lacing is smaller when the articles are normally used, so that the anti-reversion function of the lacing device is sufficient, and meanwhile, the user can conveniently finely adjust the tightness.
Drawings
FIG. 1 is an exploded view of one embodiment of the lacing arrangement of the present invention;
FIG. 2 is an opposite perspective view of the screw cap of FIG. 1;
FIG. 3 is an orthographic view and a cross-sectional view of the screw cap of FIG. 2; wherein (a) in fig. 3 is a front projection view of the screw cap, (b) in fig. 3 is a sectional view of the screw cap taken along a direction a-a, and (c) in fig. 3 is a partially enlarged view of a region a;
FIG. 4 is a schematic structural diagram and an orthographic view of the swing arm ring of FIG. 1; wherein, fig. 4 (a) is a perspective view of the swing arm ring, and fig. 4 (b) is an orthographic projection view of the swing arm ring;
FIG. 5 is a top view and a partial enlarged view of the plurality of swing arms moving out of the way as the tightening mechanism of FIG. 1 is rotated to thread the cap in a tightening direction, wherein FIG. 5 (a) is a top view and FIG. 5 (b) is a partial enlarged view;
FIG. 6 is a top view of the plurality of swing arms moved out of the way as the tightening mechanism of FIG. 1 is rotated to loosen the cap;
FIG. 7 is a schematic view of another embodiment of a tab in a taping device;
FIG. 8 is a schematic view of the construction of a swing arm ring in yet another embodiment of the lacing arrangement; wherein, fig. 8 (a) is a perspective view of the swing arm ring, and fig. 8 (b) is an orthographic view of the swing arm ring;
fig. 9 is a schematic view of a combination of a sleeve and swing arm ring in yet another embodiment of the lacing arrangement, wherein (a) is a perspective view of the combination and (b) is an orthographic view of the combination in fig. 9;
figure 10 is an orthographic view of a screw cap in yet another embodiment of the lacing arrangement;
FIG. 11 is a top view of a plurality of swing arms moved out of the way as the further embodiment of the tying device is rotated to thread the cap in a tightening direction;
fig. 12 is a top view of the plurality of swing arms moved out of the way as the tightening device of fig. 11 is threaded onto the cap in the loosening direction.
Detailed Description
The utility model is further described below with reference to the figures and examples.
Example 1
As shown in fig. 1, a lacing device comprises a base 1, an elastic stop pin 2, a winding wheel 3, a sleeve 4, a swing arm ring 5 and a spiral cover 6, wherein the base 1 can be fixedly arranged on a vamp, a tongue, a heel, a coat or a case, and the end surface of the top end of the sleeve 4 is fixedly connected with the swing arm ring 5 through a buckle structure 42; the structure of the elastic catch 2 and the winding wheel 3 and the connection manner of the winding wheel 3 and the rotary cover 6 can be referred to the content of CN 208993976U.
As shown in fig. 2 and 3, a circle of convex blocks 62 is circumferentially arranged on the inner wall of the cavity of the screw cap 6, a circle of convex blocks 621 is circumferentially arranged on the inner periphery of the circle of convex blocks, the orthographic projection OP of the convex blocks 621 is a rounded isosceles triangle, a chamfer 621S is arranged on the top of the convex blocks 621, and the groove between the convex blocks is also a rounded isosceles triangle. Correspondingly, as shown in fig. 4, the swing arm ring 5 includes a centrally disposed annular base 51, and one or more swing arms 52 are connected to the outer periphery of the annular base 51 in an extending manner, in this embodiment, 3 swing arms are disposed, and the 3 swing arms are disposed at equal intervals and extend radially along the circumference of the annular base; the swing arm 52 is a variable cross-section straight beam structure, the cross-sectional area of the swing arm beam 522 to the swing arm end 521 is smaller and smaller, the length-diameter ratio is 4.5, and the swing arm comprises the swing arm end 521 and the swing arm beam 522. As shown, the swing arm end 521 includes a protrusion abutting portion 5211, which has a shape corresponding to the shape of the groove between the protrusions 621, and is also a rounded isosceles triangle, which can be engaged with or disengaged from the protrusions 621 on the spin cover 6. The top of the swing arm end 521 is also provided with a chamfered surface 521S. The oblique plane at the tail end of the swing arm is matched with the oblique plane at the top end of the bump, so that the sliding guide function is realized, and the smooth joint of the swing arm and the bump is conveniently realized.
As shown in fig. 1 and 2, the inner wall of the cavity of the screw cap 6 has at least one fastening position 63, the sleeve 4 is correspondingly provided with a fastening position protrusion 41, and the screw cap 6 is pressed and fastened on the periphery of the sleeve to form an integral locking structure of the lace device.
The periphery of the rotary cover 6 is provided with a holding part 64; the grip portion 64 facilitates the user to rotate or move the screw cap, thereby achieving the adjustment of the shift position and the tightening and loosening of the lace through the grip portion.
This frenulum device is when the assembly, after wearing the line area, elasticity backing pin 2 is fixed on base 1, and take-up pulley 3 passes elasticity backing pin 2 and sets up in sleeve 4, and sleeve 4's top terminal surface is fixed with base 1 after 5 buckles of swing arm ring are fixed, and the spiral cover 6 is fixed and is pressed after interlock tooth 61 and is detained on sleeve 4, and spiral cover 6 realizes removable fraction through interlock tooth 61 and take-up pulley 3 and is connected, and the frenulum device just accomplishes the assembly.
When the tying device is used, the screwing cover 6 is pressed down forcibly, a click sound is heard, the meshing teeth 61 on the screwing cover 6 are meshed with the meshing teeth 31 on the winding wheel 3, and the winding wheel 3 can be driven to rotate together by the rotation of the screwing cover 6. When the rotary cover 6 is rotated in the tightening direction to hear a crisp click sound, the tail end 521 of the swing arm is engaged with the projection 621, the engaging teeth 61 and 31 are engaged, the rotary cover 6 drives the winding wheel 3 to rotate in the tightening direction, the tying belt is wound in the winding groove 32 of the winding wheel 3 for one circle, and the object to be tied is gradually tightened by the tying belt until the tightening feeling is proper. If the user feels that the tightening is too tight, the screw cap 6 can be rotated in the loosening direction, and the tying belt is released from the winding groove by a section, so that the tightness can be finely adjusted. Naturally, the screwing cap 6 can be pulled upwards, the meshing teeth 61 and 31 are separated from contact, at this time, the tightened tying belt drives the winding wheel to rotate reversely, so that the object is loosened, the screwing cap 6 is pressed down, the previous tightening action is repeated, the object to be tightened is adjusted to the proper tightness degree, and the tightness adjusting mode can achieve a better effect by needing multiple operations.
When the tying belt needs to be completely loosened, the spiral cover 6 is pulled upwards, the meshing teeth 61 and 31 are separated from contact, and the tying belt is pulled to drive the winding wheel to rotate reversely, so that the object is loosened.
Fig. 5 is a top view of the plurality of swing arms moving out of the way when the tightening device of the present embodiment is screwed on the screw cap in the tightening direction. As shown in fig. 5, the swing arm end 521 extends in the radial direction R of the circumference at the first position P1 and engages the protrusion 621; when the screw cap is screwed in the direction shown in the figure, the side wall of the projection 621 presses the side wall of the swing arm end 521 clockwise, the swing arm 52 is shifted as a whole, and the swing arm end 521 swings clockwise from the first position P1 to the second position P2 to give way to the projection 621 to allow the projecting end 621T of the projection 621 to pass over the top 5211T of the projection abutting portion 5211; once the tab's projecting end 621T clears the tab abutment top 5211T, the swing arm end 521 swings back counter-clockwise to the first position to reengage the tab 621, thereby advancing the tab 621 one step in the clockwise direction; the tightening operation is repeated to realize the rotation of the rotary cover and the winding wheel. Similarly, as shown in fig. 6, when the screw cap is screwed counterclockwise, the ends of the swing arms swing and displace counterclockwise from the first position P1 to the third position P3, so that the screw cap rotates reversely one by one.
In other preferred embodiments, the bumps may not be circumferential bumps arranged along 360 °, or three segments of bump structures 621 'and three segments of bump-less structures 622' may be circumferentially spaced, wherein the segments are equal in length, as shown in fig. 7. In other preferred embodiments, the number of swing arms may also be 1, 2, 4 … ….
In the strap arrangement shown in fig. 1-6, the projections are symmetrical with the same degree of inclination of the two side walls; the groove between the adjacent protrusions 621' shown in fig. 7 includes a first sidewall and a second sidewall, and an included angle α between a straight line E1 where the first sidewall is located and a radius OR where a vertex of the groove is located1The included angle between the straight line E2 of the second side wall and the radius OR of the top point of the groove is alpha which is 45 degrees2By 53 deg., the line E1 of the first side wall is steeper and more inclined, so that the resistance received by the swing arm end moving counterclockwise is greater than the resistance received by the swing arm end moving clockwise, and the counterclockwise direction is set to the release direction in this embodiment, which can increase the accidental release capability of the lace device. Of course, in other preferred embodiments, α2And alpha1The angular difference may be selected within 10. Therefore, the bidirectional rotation of the screw cap is not influenced, and the appropriate resistance difference of bidirectional movement can be provided for the tail end of the swing arm, so that the loosening direction and the tightening direction are determined.
In other preferred embodiments, the counterclockwise direction may be set as the direction for tightening the lace and the clockwise direction may be set as the direction for loosening the lace. At this time, the function of tightening the lace is realized by the way of the swing arm end from the first position P1 to the third position P3, and the function of loosening the lace is realized by the way of the first position P1 to the second position P2.
Example 2
The basic structure of the strap arrangement provided in this example is the same as that of example 1, except that the swing arm beam is flexible. As shown in fig. 8, the swing arm ring 5 ' includes a centrally disposed annular base 51 ', and one or more swing arms 52 ' are extended and connected to the outer periphery of the annular base 51 ', unlike embodiment 1, the swing arm 52 ' in this embodiment includes a swing arm end 521 ' and a flexure type swing arm beam 522 '. As shown in fig. 8 (b), the swing arm end 521 'extends in the circumferential radial direction R of the annular base 51'; as shown in fig. 8 (a), the swing arm beam 522 'includes an end portion 5221' by which the swing arm beam 522 'is fixed to the ring-shaped base portion 51' of the swing arm ring, the swing arm beam 522 'extends arcuately from the end portion 5221' in a clockwise direction along the outer circumference of the ring-shaped base portion 51 ', and the arcuately extending swing arm beam 522' can extend the length of the swing arm beam, thereby improving the flexural deformation performance of the swing arm beam.
Fig. 9 is a schematic view of the combination structure of the sleeve and the swing arm ring 5' in this embodiment. As shown, the sleeve 4 includes a ring platform 43, the ring base 51 ' is secured to the inner periphery of the sleeve ring platform 43 by snap-fit features, and the swing arm beams 522 ' and swing arm tips 521 ' are supported by the ring platform 43.
The structure of the bumps in this embodiment is substantially the same as that of embodiment 1, and all are peripheral bumps with chamfered surfaces, and the difference is only that the orthographic projection shape is different, as shown in fig. 10, the orthographic projection shape of the bumps 621 "in this embodiment is a hillock shape, and the grooves 623 between the bumps 621" are semicircular. Correspondingly, the shape of the bump abutting part 5211' at the end of the swing arm in this embodiment is also semicircular, as shown in fig. 8 (b), which is beneficial to engaging or disengaging with the bump 621 ″ on the screw cap; the top of the swing arm end 521 'is also provided with a chamfered surface 521S'. The chamfered surface 521S' of the end of the swing arm cooperates with a chamfered surface (not shown) of the top end of the projection 621 ", which has a sliding guide function to facilitate the smooth engagement of the swing arm and the projection. In addition, figure 10 shows a snap-fit arrangement 65 for the fixed connection of the screw cap to the snap-in teeth.
Fig. 11 is a top view of the plurality of swing arms moving out of the way when the tightening device of the present embodiment is screwed on the screw cap in the tightening direction. As shown in fig. 11, the swing arm end 521' extends in the circumferential radial direction R in the first position P1 and engages the protrusion 621 ″; when the screw cap is screwed in the direction shown in the figure, the side wall of the projection 621 'presses the side wall of the swing arm end 521' clockwise, the swing arm end 521 'does not substantially flex, and the side wall pressing force of the projection 621' is transmitted to the swing arm beam 522 'via the swing arm end 521', so thatGet the swing arm beam 522' from P 01 position radially inwardly to P0Position 2 and the swing arm end 521 'is moved from the first position P1 to the second position P2 to allow the projecting end of the tab 621 "to pass over the top of the tab abutment 5211'.
Once the convex end of the bump 621 "clears the top of the bump abutment 5211 ', the swing arm beam 522' rebounds radially outward to P0Position 1 and brings the swing arm end 521' back to the first position P1 to re-engage the recess between the protrusions 621 ". So that projection 621 "advances one step in a clockwise direction; the tightening operation is repeated to realize the rotation of the rotary cover and the winding wheel.
Similarly, as shown in fig. 12, when the screw cap is screwed in a counterclockwise direction, the swing arm end 521' will swing in a counterclockwise direction from the first position P1 to the third position P3, so as to realize the reverse rotation of the screw cap in a circle.
In other preferred embodiments, the shape of the orthographic projection of the bump may also be one of isosceles trapezoid, arch, wave, sector, rectangle and square. The tightening direction may be counterclockwise and the loosening direction may be clockwise.
While the utility model has been described in connection with specific preferred embodiments, it is to be understood that the utility model is not limited to the disclosed embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A lacing arrangement, the lacing arrangement comprising: the winding device comprises a rotary cover, a winding wheel and a sleeve, wherein the rotary cover is rotatably arranged on the sleeve, and the winding wheel is supported by the sleeve and can rotate relative to the sleeve; it is characterized in that the preparation method is characterized in that,
one or more convex blocks are arranged on the rotary cover along the circumference;
the reel is configured to wind the lace when rotated in a tightening direction and release the lace when rotated in a loosening direction;
the sleeve is provided with one or more swing arms along the circumference; the swing arm comprises a swing arm tail end and a swing arm beam, and the swing arm tail end extends along the radial direction of the circumference where the swing arm is located; the tail end of the swing arm can move between a first position, a second position or between the first position and a third position, and the second position and the third position are respectively arranged on two sides of the first position;
the swing arm is configured to screw a cap in a tightening direction when a swing arm tip engages the tab in the first position, the cap and a take-up wheel rotating in the tightening direction to tighten a lace; when the swing arm end is in the first position engaging the tab, the spinning cap is twisted in a loosening direction, and the spinning cap and the take-up wheel are rotated in the loosening direction to loosen the lace.
2. The strap apparatus of claim 1 wherein the swing arm is configured to screw the cap in a tightening direction when a swing arm tip engages the tab in the first position, the swing arm tip moving away from the first position to the second position to allow the cap and reel to rotate in the tightening direction to tighten the strap; when the rotary cover is screwed along the loosening direction, the tail end of the swing arm moves away from the first position to the third position, and the rotary cover and the wire winding wheel rotate along the loosening direction to loosen the tying belt.
3. The strap assembly of claim 1 wherein an orthographic projection of each of the projections is substantially symmetrical in a radial direction about a circumference of the projection.
4. The strap assembly of claim 1 wherein said projection extends circumferentially and radially inwardly; the swing arm ends extend radially outward along the circumference.
5. The lacing apparatus of claim 1, wherein adjacent protrusions form a groove, wherein the groove comprises a first sidewall and a second sidewall, and wherein a tangent to a line or direction of extension of the first sidewall and the second sidewall is at an angle that differs from a radius at a vertex or center of the vertex by between-10 ° and +10 °.
6. A lacing arrangement, comprising: the winding device comprises a rotary cover, a winding wheel and a sleeve, wherein the rotary cover is rotatably arranged on the sleeve, and the winding wheel is supported by the sleeve and can rotate relative to the sleeve; it is characterized in that the preparation method is characterized in that,
the sleeve is provided with one or more projections along the circumference;
the reel is configured to wind the lace when rotated in a tightening direction and release the lace when rotated in a loosening direction;
one or more swing arms are arranged on the rotary cover along the circumference; the swing arm comprises a swing arm tail end and a swing arm beam, and the swing arm tail end extends along the radial direction of the circumference where the swing arm is located; the tail end of the swing arm can move between a first position, a second position or between the first position and a third position, and the second position and the third position are respectively arranged on two sides of the first position;
the swing arm is configured to screw a cap in a tightening direction when a swing arm tip engages the tab in the first position, the cap and a take-up wheel rotating in the tightening direction to tighten a lace; when the swing arm end is in the first position engaging the tab, the spinning cap is twisted in a loosening direction, and the spinning cap and the take-up wheel are rotated in the loosening direction to loosen the lace.
7. A swing arm-lug structure for a strap apparatus, comprising:
one or more circumferentially disposed lugs;
the swing arm comprises a swing arm tail end and a swing arm beam, and the swing arm tail end extends along the radial direction of the circumference where the swing arm is located; the swing arm end is configured to engage the tab in a first position, the swing arm end being movable between the first position, a second position, or a first position and a third position, the second position and the third position being disposed on opposite sides of the first position;
the swing arm end is configured to disengage from the lug in a second position to allow the lug to rotate in a tensioning direction under a tensioning force; the swing arm end is configured to disengage from the tab in a third position to allow the tab to rotate in a release direction under a release force.
8. The swing arm-bump structure of claim 7 wherein the one or more swing arms are fixedly disposed on an annular base.
9. The swing arm-bump structure of claim 8 wherein the swing arm beam is configured as a swing arm beam, the swing arm extending radially outward along a circumference of the annular base.
10. The swing arm-bump structure of claim 8 wherein the swing arm beam is configured as a flexure swing arm beam that is deflectable radially inward along a circumference of the annular base to move the swing arm tip to the second or third position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120187524.1U CN215423119U (en) | 2021-01-25 | 2021-01-25 | Lacing device and swing arm-lug structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120187524.1U CN215423119U (en) | 2021-01-25 | 2021-01-25 | Lacing device and swing arm-lug structure thereof |
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| CN215423119U true CN215423119U (en) | 2022-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023137886A1 (en) * | 2022-01-21 | 2023-07-27 | 深圳市爱康伟达智能医疗科技有限公司 | Novel lacing device and non-return mechanism thereof |
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- 2021-01-25 CN CN202120187524.1U patent/CN215423119U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023137886A1 (en) * | 2022-01-21 | 2023-07-27 | 深圳市爱康伟达智能医疗科技有限公司 | Novel lacing device and non-return mechanism thereof |
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