CN219538014U

CN219538014U - Telescopic curtain rail with limiting shielding piece

Info

Publication number: CN219538014U
Application number: CN202223543898.6U
Authority: CN
Inventors: 黄鸿雁
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-08-18
Anticipated expiration: 2032-12-29

Abstract

The utility model provides a telescopic curtain rail with a limiting shielding piece, which comprises a first curtain rail, wherein a first driving transmission box and a secondary transmission box are arranged at two ends of the first curtain rail, and a transmission belt mounting groove is formed in the front side wall of the first curtain rail; the two ends of the second curtain rail are provided with a second driving transmission case and a track-changing transmission case; a belt at least partially exposed from the belt mounting slot; the limiting shielding piece is arranged in the transmission belt mounting groove and used for covering and shielding the exposed part of the transmission belt, and two ends of the limiting shielding piece are respectively abutted against the track-changing transmission case and the first driving transmission case and used for limiting the track-changing transmission case to move towards the first driving transmission case and move close to the first driving transmission case. The length of the curtain rail is adjusted by moving the first curtain rail and the second curtain rail in a matching way, after adjustment is finished, the limiting shielding piece is embedded into the driving belt installation groove to shield the exposed part of the driving belt, the exposed part of the driving belt is prevented from falling out of the telescopic curtain rail, normal use is guaranteed, the service life is prolonged, and the limiting effect is achieved.

Description

Telescopic curtain rail with limiting shielding piece

[ field of technology ]

The utility model relates to the technical field of curtain rails, in particular to a telescopic curtain rail with a limiting shielding piece.

[ background Art ]

Along with the development of technology, smart home has become popular, and automatic retraction and extension of curtains are one of the ways generally implemented by curtain machines, and at present, the curtain machines are generally manufactured and installed in the following ways: firstly, measuring the width of the window wall surface, and then manufacturing a curtain machine according to the width dimension, however, the defects in the process are as follows: 1. the labor is wasted due to the fact that the on-site measurement is needed, and if the measurement or the manufacture is wrong, the reworking is needed, so that the labor hour and the materials are wasted; 2. only customization can be performed, the cost is high, and mass production cannot be realized. And a few curtain rails with telescopic functions, the transmission belt can be partially exposed at the non-overlapped part of the two rails, and after the length of the two rails is adjusted, the transmission belt can be loosened and falls out of the curtain rails, so that normal use is affected, and the service life of the transmission belt is reduced.

[ utility model ]

The utility model aims to provide a telescopic curtain rail with a limiting shielding piece, which can adjust the length of the curtain rail according to actual situation requirements and can protect a driving belt when in use.

The utility model is realized by the following technical scheme:

the first curtain rail is provided with a first driving transmission box and an auxiliary transmission box in a connecting mode at two ends, a first driving wheel is rotationally arranged in the first driving transmission box, a steering wheel is arranged in the auxiliary transmission box, and a transmission belt mounting groove is formed in the front side wall of the first curtain rail;

the second curtain rail is provided with a superposition part side by side with the first curtain rail, two ends of the second curtain rail are respectively connected with a second driving transmission box and a track changing transmission box, a second driving wheel is rotationally arranged in the second driving transmission box, and a transmission group is arranged in the track changing transmission box;

a transmission belt for effecting power transmission between the first drive wheel, the steering wheel, the second drive wheel and the transmission group, and at least partially exposed from the transmission belt mounting groove;

the limiting shielding piece is arranged at the non-overlapped part of the transmission belt mounting groove between the track-changing transmission box and the first driving transmission box and used for covering and shielding the exposed part of the transmission belt, and two ends of the limiting shielding piece respectively support against the track-changing transmission box and the first driving transmission box and are used for limiting the track-changing transmission box to move towards the direction of the first driving transmission box and move close to the track-changing transmission box.

The outer side surface of the limiting shielding piece is aligned with the side surface of the first curtain rail.

The telescopic curtain rail with the limiting shielding piece is characterized in that a clamping structure for fixing the limiting shielding piece is further arranged between the limiting shielding piece and the first curtain rail.

The telescopic curtain rail with the limiting shielding piece, the clamping structure comprises the clamping parts protruding from the two long edges of the limiting shielding piece, the first curtain rail is provided with the first clamping groove and the second clamping groove which can be respectively clamped with the two clamping parts, the first clamping groove is formed in the side wall, close to the second curtain rail, of the first curtain rail, and the second clamping groove is formed in the lower side wall of the first curtain rail.

The telescopic curtain rail with the limiting shielding piece is characterized in that the first clamping groove is formed in the side wall, close to the second curtain rail, of the first curtain rail, and the second clamping groove is formed in the lower side wall of the first curtain rail.

The ratio of the width H of the driving belt installation groove to the width H of the side wall of the first curtain rail is between 1:2 and 1:3.

The telescopic curtain rail with the limiting shielding piece is characterized in that the limiting shielding piece is a plastic limiting shielding piece.

The telescopic curtain rail with the limiting shielding piece is characterized in that the first curtain rail is provided with the first pulley groove with the downward opening and the first fixing groove with the upward opening, the second curtain rail is provided with the second pulley groove with the downward opening and the second fixing groove with the upward opening, the driving belt is movably arranged in the first pulley groove, the second pulley groove and the driving belt mounting groove, the first pulley groove is internally provided with the first pulley block in a sliding manner, the second pulley block is internally provided with the second pulley block in a sliding manner, and one sides of the first pulley block and the second pulley block opposite to each other are also respectively provided with limiting protrusions.

The telescopic curtain rail with the limiting shielding piece, as described above, is characterized in that a locking mechanism is further arranged between the auxiliary transmission box and the first fixed groove and between the track-changing transmission box and the second fixed groove, and the locking mechanism comprises a locking convex strip arranged on the first fixed groove and the second fixed groove, and a rotating locking piece which is hinged on the auxiliary transmission box and the track-changing transmission box and can rotate to prop against the locking convex strip so as to jack up the auxiliary transmission box and the track-changing transmission box.

The telescopic curtain rail with the limiting shielding piece further comprises a fixing assembly, the fixing assembly comprises a double-rail fixing piece and a single-rail fixing piece, the double-rail fixing piece and the single-rail fixing piece are respectively provided with a clamping hook which can be clamped with the two side walls of the first fixing groove and/or the two side walls of the second fixing groove, and the double-rail fixing piece and the single-rail fixing piece are respectively provided with a plurality of connecting holes.

Compared with the prior art, the utility model has the following advantages: the utility model has simple structure, when in installation, a customer can adjust the length of the first curtain rail and the second curtain rail which are overlapped according to the actual needs of the customer, so that the length of the telescopic curtain rail can be adjusted according to the needs, the utility model is practical and convenient, and simultaneously, after the adjustment is finished, the limiting shielding piece is embedded into the non-overlapped part of the transmission belt installation groove between the track-changing transmission case and the first driving transmission case to cover the exposed part of the shielding transmission belt, thereby preventing the exposed part of the transmission belt from falling out of the telescopic curtain rail, ensuring the normal use of the telescopic curtain rail.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a telescopic curtain rail with a limiting shielding member according to embodiment 1 of the present utility model.

Fig. 2 is an exploded view of the telescopic curtain rail with a limit shutter according to embodiment 1 of the present utility model.

Fig. 3 is a bottom view of the telescopic curtain rail with the spacing blinds of embodiment 1 of the present utility model.

Fig. 4 is a schematic cross-sectional view of the direction a in fig. 3.

Fig. 5 is a schematic cross-sectional view of fig. 3 in the direction B.

Fig. 6 is a side view of a telescoping window covering rail with a spacing blind according to embodiment 1 of the present utility model.

Fig. 7 is a schematic structural view of a limiting shielding member according to an embodiment of the present utility model.

Fig. 8 is a schematic cross-sectional view of fig. 6 in the direction C.

Fig. 9 is a cross-sectional view of a telescoping window covering rail with a spacing blind according to embodiment 2 of the present utility model.

[ detailed description ] of the utility model

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 8, embodiment 1 of the present utility model proposes a telescopic curtain rail with a limiting shielding member, including:

the first curtain rail 1 is provided with a first driving transmission case 11 and an auxiliary transmission case 12 which are respectively connected at two ends, the first driving transmission case 11 is internally provided with a first driving wheel 111 in a rotating way, the auxiliary transmission case 12 is internally provided with a steering wheel 121, and the front side wall of the first curtain rail 1 is provided with a transmission belt mounting groove 14;

the second curtain rail 2 is provided with a superposition part side by side with the first curtain rail 1, two ends of the second curtain rail are respectively connected with a second driving transmission box 21 and a track changing transmission box 22, a second driving wheel 211 is rotationally arranged in the second driving transmission box 21, and a transmission group 221 is arranged in the track changing transmission box 22;

a belt 3 for transmitting power between the first driving wheel 111, the steering wheel 121, the second driving wheel 211 and the transmission group 221, and at least partially exposed from the belt mounting groove 14;

the limiting shielding piece 9 is arranged at a non-overlapped part of the transmission belt mounting groove 14 between the track-changing transmission box 22 and the first driving transmission box 11 and used for covering and shielding the exposed part of the transmission belt 3, and two ends of the limiting shielding piece are respectively abutted to the track-changing transmission box 22 and the first driving transmission box 11 and used for limiting the track-changing transmission box 22 to move towards the direction of the first driving transmission box 11.

The customer can be according to own actual need during installation, through adjusting the length that two parts of first (1) curtain track and second (2) curtain track coincide, makes flexible curtain track's length can adjust as required, and is practical convenient, simultaneously after adjusting, according to the length after having adjusted, tailors spacing shielding member 9 to suitable length back, embedded drive belt mounting groove 14 is located the track transmission case 22 with the uncovered position between the first drive transmission case 11 is in order to cover shielding drive belt 3 exposes the part, prevents that drive belt 3 exposes the part and falls outside flexible curtain track, guarantees that flexible curtain track can normal use, and because spacing shielding member 9 is tailorring according to the length after adjusting, behind the embedding drive belt mounting groove 14, its both ends are supported respectively and are pressed on first drive transmission case 11 and track transmission case 22, can also play the limiting effect, prevent that first (1) curtain track and second (2) curtain track from continuing to remove in opposite directions and shorten flexible track length.

In this embodiment, the auxiliary driving box 12 is slidably connected to the second curtain rail 2, and the track-changing driving box 22 is slidably connected to the first curtain rail 1.

Specifically, the transmission set 221 includes a first track-changing assembly 2211 and a second track-changing assembly 2212 disposed in the track-changing transmission box 22, and the transmission belt 3 is sequentially wound on the first driving wheel 111, the steering wheel 121, the first track-changing assembly 2211, the second driving wheel 211, the second track-changing assembly 2212, and the first driving wheel 111.

Further, a driving belt installation groove 14 for accommodating the driving belt 3 is formed in one side of the first curtain rail 1, which is close to the second curtain rail 2, and the limiting shielding member 9 is arranged outside the driving belt installation groove 14

Specifically, the limiting shielding member 9 is mounted outside the driving belt mounting groove 14, and the outer side surface of the limiting shielding member is aligned with the side surface of the first curtain rail 1, which is close to the side of the second curtain rail 2. The limiting shielding piece 9 is prevented from protruding out of the side face of the first curtain rail 1, the limiting shielding piece 9 is protected, and meanwhile, the telescopic curtain rail is attractive.

Further, a clamping structure 90 for fixing the limiting shielding member 9 is further arranged between the limiting shielding member 9 and the first curtain rail 1.

Specifically, the engaging structure 90 includes engaging portions 901 protruding on two long sides of the limiting shielding member 9, and a first engaging groove 902 and a second engaging groove 903 capable of being engaged with the two engaging portions 901 are formed in the first curtain rail 1.

In this embodiment, the first engaging groove 902 is formed on a side wall of the first curtain rail 1 adjacent to the second curtain rail 2, and the second engaging groove 903 is formed on a lower side wall of the first curtain rail 1. The second clamping groove 903 is formed in the lower side wall of the first curtain rail 1, so that one side of the limiting shielding piece 9 is located outside the first curtain rail 1 after being installed, and the limiting shielding piece 9 is convenient to detach from the first curtain rail 1.

Specifically, the two ends of the limiting shielding piece 9 are respectively abutted against the track changing transmission box 22 and the first driving transmission box 11, so that the limiting effect can be achieved, and the first curtain rail 1 and the second curtain rail 2 are prevented from continuously moving towards each other to shorten the length of the telescopic curtain rail.

Further, the ratio of the width H of the belt mounting groove 14 to the width H of the side wall of the first curtain rail 1 is between 1:2 and 1:3.

Specifically, the limiting shielding piece 9 is a plastic limiting shielding piece. Low cost and convenient production.

Further, the first curtain rail 1 is provided with a first pulley groove 101 with a downward opening and a first fixing groove 102 with an upward opening, the second curtain rail 2 is provided with a second pulley groove 201 with a downward opening and a second fixing groove 202 with an upward opening, and the driving belt 3 is movably arranged in the first pulley groove 101, the second pulley groove 201 and the accommodating groove 11.

Further, the first pulley groove 101 is slidably provided with the first pulley block 13, and the second pulley groove 201 is slidably provided with the second pulley block 23.

Specifically, the first pulley block 13 includes a first pulley 131 slidably disposed in the first pulley groove 101, two ends of the first pulley 131 are respectively provided with a first fixing structure 132 and a second fixing structure 133, and two ends of the driving belt 3 are respectively connected to the first fixing structure 132 and the second fixing structure 133. The second pulley block 23 includes a second pulley 231 slidably disposed in the second pulley groove 201, a groove 232 capable of allowing the driving belt 3 to pass through is disposed below the second pulley 231, and a limiting member 233 capable of locking a relative position between the second pulley 231 and the driving belt 3 is further disposed on the second pulley 231. The limiting piece 233 is fixed with the second pulley 231 through a screw. The screws are tightened or loosened, and the belt 3 is fixed or loosened between the stopper 233 and the second pulley 231.

Further, a curtain hanger 71 for hanging a curtain is slidably inserted between the first driving transmission box 11 and the first pulley block 13 and between the second driving transmission box 21 and the second pulley block 23 in the first pulley groove 101, a first hook 72 for hanging a curtain is respectively arranged on the first driving transmission box 11 and the second driving transmission box 21, and a second hook 73 for hanging a curtain is respectively arranged on the first pulley block 13 and the second pulley block 23. The two ends of the upper part of the curtain are respectively hung on the first hook 72 and the second hook 73, and the middle part is hung on the curtain hanging piece 71.

Through the connection and fixation between the second pulley 231 and the limiting piece 233, the position between the second pulley block 23 and the driving belt 3 is locked, so that the first pulley block 13 and the second pulley block 23 relatively move along with the driving belt 3, and the curtain hung between the first driving transmission box 11 and the first pulley 131 and between the second driving transmission box 21 and the second pulley 231 is driven to retract or expand, and the device is practical and convenient

More specifically, the opposite sides of the first pulley block 13 and the second pulley block 23 are also provided with limiting projections 8, respectively. By providing the limit protrusion 8, the first pulley 131 and the second pulley 231 are prevented from excessively sliding to form a stagger, and the product and the curtain are prevented from being damaged.

Further, a locking mechanism 5 is further disposed between the auxiliary transmission case 12 and the first fixing groove 102, and between the track-changing transmission case 22 and the second fixing groove 202, and the locking mechanism 5 includes a locking convex strip 51 disposed on the first fixing groove 102 and the second fixing groove 202, and a rotation locking piece 52 hinged on the auxiliary transmission case 12 and the track-changing transmission case 22 and capable of rotating against the locking convex strip 51 to jack up the auxiliary transmission case 12 and the track-changing transmission case 22. When the position between the first curtain rail 1 and the second curtain rail 2 is adjusted to be in place, the turnover locking piece 52 is pressed against the locking convex strip 51, the auxiliary transmission box 12 and the track-changing transmission box 22 are jacked up, so that the auxiliary transmission box 12 and the track-changing transmission box 22 cannot slide, and the relative position between the first curtain rail 1 and the second curtain rail 2 is locked, so that the curtain is convenient and practical; meanwhile, when in transportation, after the total length of the curtain rail is adjusted to be the shortest, the curtain rail is locked through the locking mechanism 5, so that the transportation space is saved, the first curtain rail 1 and the second curtain rail 2 are prevented from sliding relatively in the transportation process, and products are protected.

Further, the fixing assembly comprises a double-rail fixing piece 61 and a single-rail fixing piece 62, hooks which can be clamped with two side walls of the first fixing groove 102 and/or two side walls of the second fixing groove 202 are respectively arranged on the double-rail fixing piece 61 and the single-rail fixing piece 62, and a plurality of connecting holes 65 are respectively arranged on the double-rail fixing piece 61 and the single-rail fixing piece 62. During installation, the plurality of single-rail fixing pieces 62 are respectively clamped on two side walls of the first fixing groove 102 of the single extending part of the first curtain rail 1 and two side walls of the second fixing groove 202 of the single extending part of the second curtain rail 2 in a rotating mode, the plurality of double-rail fixing pieces 61 are respectively clamped on two side walls of the first fixing groove 102 and two side walls of the second fixing groove 202 of the overlapping part of the first curtain rail 1 and the second curtain rail 2, and finally the double-rail fixing pieces 61 and the single-rail fixing pieces 62 are fixed on a wall through the connecting holes 65 by fixing screws or bolts.

In embodiment 2, this embodiment is substantially the same as embodiment 1, and only differences from embodiment 1 in main configurations are described for the sake of simplicity of description. The part not described in this embodiment is the same as embodiment 1, except that:

as shown in fig. 9, the transmission set 221 includes a first auxiliary transmission wheel 2213 and a second auxiliary transmission wheel 2214 provided in the orbital transfer transmission box 22, and a transmission gear 2215 provided therebetween and drivingly connected to the two, respectively.

Specifically, two driving belts 3 are provided, one is movably disposed in the second curtain rail 2 and wound on the second driving wheel 211 and the first auxiliary driving wheel 2213, and one is movably disposed in the first curtain rail 1 and the driving belt mounting groove 14 and wound on the first driving wheel 111, the second auxiliary driving wheel 2214 and the steering wheel 121. The two driving belts 3 are in driving connection through the driving gear 2215.

It should be understood that the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the utility model. Furthermore, references to orientations or positional relationships of the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc. are based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The foregoing description of one or more embodiments provided in connection with the specific disclosure is not intended to limit the practice of the utility model to such description. The method, structure, and the like similar to or identical to those of the present utility model, or a plurality of technical deductions or substitutions are made on the premise of the conception of the present utility model, and are considered to be the protection scope of the present utility model.

Claims

1. The utility model provides a take flexible (window) curtain track of spacing shielding piece which characterized in that includes:

the curtain rail comprises a first curtain rail (1), wherein two ends of the first curtain rail are respectively connected with a first driving transmission case (11) and an auxiliary transmission case (12), a first driving wheel (111) is rotationally arranged in the first driving transmission case (11), a steering wheel (121) is arranged in the auxiliary transmission case (12), and a transmission belt mounting groove (14) is formed in the front side wall of the first curtain rail (1);

the second curtain rail (2) is provided with a superposition part side by side with the first curtain rail (1), two ends of the second curtain rail are respectively connected with a second driving transmission box (21) and a track changing transmission box (22), a second driving wheel (211) is rotationally arranged in the second driving transmission box (21), a transmission group (221) is arranged in the track changing transmission box (22), and the first curtain rail (1) and the second curtain rail (2) can relatively move along the length direction to adjust the length of the superposition part between the first curtain rail and the second curtain rail;

a transmission belt (3) for effecting power transmission between the first drive wheel (111), the steering wheel (121), the second drive wheel (211) and the transmission group (221), and at least partially exposed from the belt mounting groove (14);

and the limiting shielding piece (9) is arranged at the non-overlapped part between the transmission belt mounting groove (14) and the first driving transmission box (11) and is used for covering and shielding the exposed part of the transmission belt (3), and two ends of the limiting shielding piece are respectively abutted to the transmission belt mounting groove (22) and the first driving transmission box (11) and used for limiting the transmission belt mounting groove (22) to move towards the first driving transmission box (11) to be close.

2. A telescopic curtain rail with a limit shutter according to claim 1, characterized in that the limit shutter (9) outer side is aligned with the first curtain rail (1) side.

3. A telescopic curtain rail with a limiting shielding element according to claim 2, characterized in that a clamping structure (90) for fixing the limiting shielding element (9) is further arranged between the limiting shielding element (9) and the first curtain rail (1).

4. A telescopic curtain rail with a limiting shielding piece according to claim 3, wherein the clamping structure (90) comprises clamping parts (901) protruding on two long sides of the limiting shielding piece (9), and a first clamping groove (902) and a second clamping groove (903) which can be respectively clamped with the two clamping parts (901) are formed in the first curtain rail (1).

5. The telescopic curtain rail with the limiting shielding piece according to claim 4, wherein the first clamping groove (902) is formed in a side wall of the first curtain rail (1) close to the second curtain rail (2), and the second clamping groove (903) is formed in a lower side wall of the first curtain rail (1).

6. A telescopic curtain rail with limit blinds according to claim 1, characterized in that the ratio of the width H of the drive belt installation slot (14) to the width H of the first curtain rail (1) side wall is between 1:2 and 1:3.

7. A telescopic curtain rail with a limit shutter according to claim 1, characterized in that the limit shutter (9) is a plastic limit shutter.

8. The telescopic curtain rail with the limiting shielding member according to any one of claims 2 to 7, wherein a first pulley groove (101) with a downward opening and a first fixing groove (102) with an upward opening are respectively formed in the first curtain rail (1), a second pulley groove (201) with a downward opening and a second fixing groove (202) with an upward opening are respectively formed in the second curtain rail (2), the transmission belt (3) is movably arranged in the first pulley groove (101), the second pulley groove (201) and the transmission belt mounting groove (14), a locking mechanism (5) is further arranged between the auxiliary transmission case (12) and the first fixing groove (102) and between the track changing transmission case (22) and the second fixing groove (202), the locking mechanism (5) comprises a locking convex strip (51) arranged on the first fixing groove (102) and the second fixing groove (202), and the auxiliary transmission case (12) and the upper transmission case (22) are hinged to lock the convex strip (51) against the transmission case (12) in a rotating manner.

9. The telescopic curtain rail with the limiting shielding member according to claim 8, wherein the auxiliary transmission case (12) is slidably connected to the second curtain rail (2), the track-changing transmission case (22) is slidably connected to the first curtain rail (1), the transmission group (221) comprises a first track-changing component (2211) and a second track-changing component (2212) which are arranged in the track-changing transmission case (22), and the transmission belt (3) is sequentially wound on the first driving wheel (111), the steering wheel (121), the first track-changing component (2211), the second driving wheel (211), the second track-changing component (2212) and the first driving wheel (111).

10. The telescopic curtain rail with the limiting shielding member according to claim 8, wherein the transmission group (221) comprises a first auxiliary transmission wheel (2213) and a second auxiliary transmission wheel (2214) which are arranged in the track-changing transmission box (22), and transmission gears (2215) which are arranged between the first auxiliary transmission wheel (2213) and the second auxiliary transmission wheel and are respectively in transmission connection with the first auxiliary transmission wheel and the second auxiliary transmission wheel, the two transmission belts (3) are movably arranged in the second curtain rail (2), are wound on the second driving wheel (211) and the first auxiliary transmission wheel (2213), the other one is movably arranged in the first curtain rail (1) and the transmission belt mounting groove (14), are wound on the first driving wheel (111), the second auxiliary transmission wheel (2214) and the steering wheel (121), and the two transmission belts (3) are in transmission connection through the transmission gears (2215).