CN211491358U - Chuck assembly for a driver having a stationary housing - Google Patents
Chuck assembly for a driver having a stationary housing Download PDFInfo
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- CN211491358U CN211491358U CN201922305809.6U CN201922305809U CN211491358U CN 211491358 U CN211491358 U CN 211491358U CN 201922305809 U CN201922305809 U CN 201922305809U CN 211491358 U CN211491358 U CN 211491358U
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- locking ring
- stationary housing
- locking mechanism
- driver
- locking
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Abstract
The utility model provides a cartridge subassembly for having driver of fixed casing, it includes: a collet comprising a body and a sleeve; and a locking mechanism located between the stationary housing and the sleeve and comprising at least two first projections arranged at intervals to define a first recess; wherein, the fixed shell is provided with a second bulge; the locking mechanism is adapted to move axially along an outer surface of the body between a locked position and an unlocked position; when the locking mechanism is in the locking position, the second protrusion is inserted into the first recess to prevent the body from rotating; when the locking mechanism is in the unlocked position, the second projection disengages the first recess to allow the body to rotate with the output shaft of the driver. The utility model discloses a locking mechanical system of cartridge subassembly simple structure, the user operation of being convenient for, it is with low costs, greatly improved user experience.
Description
Technical Field
The present invention relates to a chuck assembly, and more particularly, to a chuck assembly for a driver having a stationary housing.
Background
Chuck assemblies are widely used in various fields, and as the application range of electric tools is expanded, the demand for the operability of the chuck is increasing.
In the prior art, a chuck generally comprises a chuck body, clamping jaws, a nut, a bell mouth, a steel cap, a bearing, a sleeve and the like. The clamping jaws are arranged in inclined holes in the chuck body, and the nuts are in threaded connection with the clamping jaws. When the tool is operated, the nut is driven by rotating the sleeve to drive the clamping jaws to move back and forth in the inclined holes of the chuck body, so that the clamping jaws are opened or closed to loosen or clamp the tool.
When the cartridge is used in a mixing apparatus, it is generally desirable that the cartridge assembly generally have a dual sleeve (including a front sleeve and a rear sleeve). Since the stirring device comprises a structure arranged one above the other, in particular, usually comprising a driver and a chuck located below the driver. The rear sleeve is often fixed to the chuck body in an interference manner or the like, and when the chuck is used, the rear sleeve needs to be held, and the front sleeve needs to be rotated to drive the clamping jaws. This requires one hand to grasp the rear sleeve and one hand to rotate the front sleeve. However, there is a problem in that one hand is also required to hold the stirring rod, and if the user cannot hold the stirring rod, the stirring rod inevitably falls into the solution, which greatly affects the user experience.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems existing in the prior art, the utility model provides a chuck component, the locking mechanical system simple structure of chuck component, the user operation of being convenient for.
The utility model provides a cartridge subassembly for having driver of fixed casing includes: a collet comprising a body and a sleeve; and a locking mechanism located between the stationary housing and the sleeve and comprising at least two first projections arranged at intervals to define a first recess; wherein the fixed shell is provided with a second bulge; the locking mechanism is adapted to move axially along an outer surface of the body between a locked position and an unlocked position; when the locking mechanism is in the locking position, the second protrusion is inserted into the first recess to prevent the body from rotating; the second protrusion disengaging from the first recess to allow the body to rotate with the output shaft of the driver when the locking mechanism is in the unlocked position comprises:
in some embodiments of the invention, the locking mechanism includes a locking ring, and the first protrusion is located on a first side of the locking ring that is close to the stationary housing and is evenly spaced along an end of the first side.
In some embodiments of the invention, the inner surface of the locking ring is provided with a groove; the locking mechanism further comprises a first retaining member, a first portion of which is received within the recess and a second portion of which protrudes from the recess; the body has a first receiving portion and a second receiving portion, either of which is adapted to receive a second portion of the first retaining member to limit axial movement of the locking ring.
In some embodiments of the present invention, the first position limiting member is a C-ring; either one of the first receiving portion and the second receiving portion is a groove provided on an outer surface of the main body.
In some embodiments of the invention, the first stop is a third protrusion protruding from an inner wall of the locking ring, the third protrusion comprising a first inclined contact surface and a second inclined contact surface; the outer surface of the main body is provided with a spring plunger, the first receiving part is a first elastic contact surface of the spring plunger, and the second receiving part is a second elastic contact surface of the spring plunger; wherein the first ramped contact surface contacts the first resilient contact surface to limit axial movement of the locking ring toward the sleeve when the locking mechanism is in the locked position; the second sloped contact surface contacts the second resilient contact surface to limit axial movement of the locking ring toward the stationary housing when the locking mechanism is in the unlocked position.
In some embodiments of the invention, the outer surface of the body is provided with a second stop configured to limit axial movement of the locking ring towards the stationary housing when the locking mechanism is in the locked position.
In some embodiments of the present invention, the second position limiting member is a snap spring; and the outer surface of the main body is provided with a third receiving part suitable for receiving the clamp spring.
In some embodiments of the invention, the second locating part is a protrusion protruding from an outer surface of the main body.
In some embodiments of the invention, the sleeve has a stop portion configured to contact an end of the second side of the locking ring when the locking mechanism is in the unlocked position to limit axial movement of the locking ring; and/or the inner surface of the sleeve has a radial plane configured to contact the outer surface of the second side of the locking ring when the locking mechanism is in the unlocked position to limit axial movement of the locking ring; wherein a second side of the locking ring is disposed opposite a first side of the locking ring and a protruding handle is provided between the second side and the first side.
In some embodiments of the invention, the outer surface of the body has at least two first planes; and the inner surface of the locking ring has a second flat surface adapted to conform to the first flat surface.
The utility model discloses following beneficial technological effect has:
the utility model discloses a locking mechanical system for having chuck subassembly of driver of fixed casing simple structure just can accomplish the locking and the unblock of the main part of chuck through axial displacement, and the user can hold the rotatory sleeve by one hand when the main part is locked, and the instrument that is pressed from both sides tightly or unclamps is held by one hand. Therefore, the utility model discloses a chuck subassembly is when simplifying the structure, and user experience has been improved to the user's of improvement easy and simple operation nature.
Drawings
For understanding the present invention, the present invention will be described in detail with reference to the following embodiments and accompanying drawings.
Fig. 1 is an exploded view of a cartridge assembly and stationary housing according to a first exemplary embodiment of the present invention.
FIG. 2 is a partial cross-sectional view of the cartridge assembly and stationary housing of FIG. 1 assembled with the locking mechanism shown in a locked position.
FIG. 3 is a partial cross-sectional view of the cartridge assembly and stationary housing of FIG. 1 assembled, showing the locking mechanism in an unlocked position.
FIG. 4 is a perspective view of the locking ring of the cartridge assembly shown in FIG. 1.
Fig. 5 is a perspective view of the stationary housing shown in fig. 1.
FIG. 6 is an assembled perspective view of the stationary housing and locking ring of FIG. 1 showing the stationary housing inserted into the locking ring.
FIG. 7 is an assembled perspective view of the stationary housing and locking ring of FIG. 1, showing the stationary housing disengaged from the locking ring.
Fig. 8 is an enlarged partial view of fig. 3 showing a radial plane of the inner surface of the sleeve.
FIG. 9 is a perspective view of the body shown in FIG. 1, showing the outer surface of the body having a first plane.
FIG. 10 is a perspective view of the locking ring shown in FIG. 1, showing the inner surface of the locking ring having a second flat surface.
Fig. 11 is an assembled partial cross-sectional view of a cartridge assembly and stationary housing of a second exemplary embodiment of the present invention, showing a locking mechanism in a locked position.
FIG. 12 is an assembled partial cross-sectional view of the cartridge assembly and stationary housing of FIG. 11 showing the locking mechanism in an unlocked position.
Detailed Description
While the present chuck assembly for a driver having a stationary housing may be embodied in many different forms, exemplary embodiments will be described in detail herein with reference to the accompanying drawings, it being understood that the description herein should be considered as an illustration of the principles of construction of the chuck assembly and stationary housing and is not intended to limit the scope of the present invention to the exemplary embodiments. Accordingly, the drawings and description of the specific embodiments are to be regarded as illustrative in nature, and not as restrictive.
In addition, the exemplary embodiments of the present invention can be varied in many ways between them and can be combined with each other where compatible, and certain features can be omitted, as long as they appear to be dispensable.
First exemplary embodiment
Fig. 1 shows an exploded view of a cartridge assembly and a stationary housing of a first exemplary embodiment of the present invention. As shown in fig. 1, the collet assembly includes a collet 100, and the collet 100 includes a body 110 and a sleeve 120. The cartridge assembly further comprises a locking mechanism 200 comprising a locking ring 210 and a first stop 220. Wherein a locking mechanism 200 is located between the stationary housing 300 and the sleeve 120, said locking mechanism being adapted to move axially along the outer surface of said body between a locked position (as shown in fig. 2) and an unlocked position (as shown in fig. 3).
When the locking mechanism is in the locked position, the locking ring 210 engages the stationary housing 300 to prevent rotation of the body 110, thereby allowing the sleeve 120 to rotate relative to the body to loosen or clamp the tool; when the locking mechanism is in the unlocked position, the locking ring 210 is disengaged from the stationary housing 300 to allow the body 110 to rotate with the output shaft of the driver (not shown), thereby rotating the entire chuck and, in turn, the clamped tool, for example, to perform a blending function.
The cartridge 100, the locking mechanism 200, and the stationary housing 300 will be described in detail below.
As shown in fig. 1 to 3, the chuck 100 further includes a bearing 130, a nut 140, a flared mouth 160 of the clamping jaw 150 and a steel cap 170, which are substantially the same as those in the prior art and will not be described again. Wherein the bearing, nut, flare and steel cap and body cooperate to limit axial movement of the sleeve 120, i.e., the sleeve 120 is only rotatable about the body 110 to drive the jaws 150 along the body toward or away from the open portion of the chuck under the cooperation of the bearing and nut to grip or release the tool.
The body 110 has a first receiving portion 111 and a second receiving portion 112 in the form of grooves on the outer surface thereof, the functions of which will be described below. As shown in fig. 2, the outer surface of the main body 110 is further provided with a second stopper 113 in the form of a snap spring and a third receiving portion 114 adapted to receive the snap spring, and the third receiving portion 114 is in the form of a groove. The circlip is configured to limit the locking ring 210 from moving axially towards the stationary housing 300 when the locking mechanism 200 is in the locked position. As shown in fig. 1 and 9, the outer surface of the body 110 has at least two first planes 115, the function of which will be described below. In the present exemplary embodiment, the first planes are 2 in number and are symmetrically arranged with respect to the axial direction of the body. It will be appreciated that more than two first planes may be provided.
The body 110 also includes a threaded bore 116 as shown in fig. 1 and a screw 117. The body 110 is connected to an output shaft (not shown) of the driver by means of a threaded bore 116 and a screw 117. Thus, when the locking mechanism is in the unlocking position, the output shaft of the driver can drive the main body 110 to rotate, and further drive the whole chuck 100 to rotate.
As shown in fig. 1 and 8, the sleeve 120 has a stopper 121 on a side thereof adjacent to the locking ring 210, and the inner surface of the sleeve 120 has a radial flat surface 122. The function of the stop and radial plane will be described below.
The locking ring 210 of the locking mechanism 200 is disposed on an outer surface of the body 110 and has at least two first protrusions 211 on a first side adjacent to the stationary housing 300, the at least two first protrusions being spaced apart to define a first recess 212. As shown in fig. 4, 6 and 7, the first protrusions 211 are uniformly spaced along the end of the first side, and 12 in number. It is understood that the number of the first protrusions 211 is not limited thereto, and may be any other suitable number, for example, 6 or 9.
As shown in fig. 2 to 4 and 6 and 7, the inner surface of the locking ring 210 is provided with a groove 213 and a second flat surface 214.
A portion (also referred to as a first portion) of the first retaining member 220 is received in the groove 213, and the remaining portion (also referred to as a second portion) of the first retaining member 220 protrudes from the groove 213. When the locking mechanism is in the locked position (as shown in fig. 2), the protruding second portion is received by the first receiving portion 111 of the body 110 to limit the axial movement of the locking ring 210. When the locking mechanism is in the unlocked position (as shown in fig. 3), the protruding second portion is received by the second receiving portion 112 of the body 110 to limit axial movement of the locking ring 210. In the present exemplary embodiment, the first limiting member 220 is a C-shaped ring or a C-shaped retaining ring, which is made of steel material. It will be appreciated that the C-ring or C-collar may be made of any other suitable material.
The second flat 214 is adapted to conform to the first flat 115 of the body 110 to allow the locking ring 210 to move axially along the outer surface of the body 110, but to limit rotation of the locking ring 210 relative to the body 110. In other words, the second flat surface 214 is adapted to conform to the first flat surface 115 of the body 110 such that the locking ring 210 moves axially only along the outer surface of the body 110.
The locking ring 210 has a second side disposed opposite the first side. A protruding grip 215 is provided between the second side and the first side for the user to grip to apply a force to axially displace the locking ring. In the present exemplary embodiment, the handle 215 is in the form of a flange.
When the locking mechanism is in the unlocked position (as shown in fig. 3), the second side of the locking ring 210 contacts the stop 121 of the sleeve 120 to limit axial movement of the locking ring. Also, in the unlocked position, the outer surface of the second side of the locking ring 210 contacts the radial flat 122 of the sleeve 120 to further limit axial movement of the locking ring.
As shown in fig. 5 to 7, the inner surface of the stationary housing 300 is provided with a second protrusion 310. When the locking mechanism is in the locked position, the second protrusion 310 is adapted to be inserted into the first recess 212 of the locking ring 210, whereby the space of the first recess 212 is substantially occupied by the second protrusion 310, which in turn acts to prevent rotation of the body 110. When the locking mechanism is in the unlocked position, the second protrusion 310 is disengaged from the first recess 212, thereby allowing the main body 110 to rotate with the output shaft of the driver.
When the chuck assembly is used in a driver of a stirring device in a laboratory, the chuck is used to grip the stirring rod. In this application, we describe in detail the specific operation of the cartridge 100, the locking mechanism 200, and the stationary housing 300 below.
First, when the locking mechanism is located at the locking position as shown in fig. 2, the second protrusion 310 of the inner surface of the stationary housing 300 is inserted into the first recess 212 of the locking ring 210, thereby preventing the rotation of the locking ring 210. The insertion of the second projection 310 into the first recess 212 of the locking ring 210 also prevents rotation of the body due to the conforming action of the first planar surface 115 of the body 110 and the second planar surface 214 of the locking ring 210.
In this case, the user may rotate the sleeve 120 to drive the jaws 150 via the bearings 130 and nut 140 toward and away from the open portion of the chuck to grip and release the stir bar for replacement. This process is referred to as the adjustment mode of the stirring device.
After replacing the desired stir bar, the user pulls down on the handle 215 of the locking ring 210 to disengage the first recess 212 of the locking ring 210 from the second protrusion 310. As the locking ring 210 moves axially downward, the first stopper 220 moves axially from the first receiving portion 111 to the second receiving portion of the body 110. At the same time, the second side of the locking ring moves axially downward to the stop 121 of the sleeve 120, and the outer surface of the second side of the locking ring contacts the radial flat 122 of the sleeve, further limiting the locking ring 210 from continuing downward axial movement. At this point, the locking mechanism is in the unlocked position. The user can activate the driver to cause the output shaft to rotate the main body 110, which in turn rotates the stirring rod. In this case, the stirring device is in the operating mode to realize the stirring function.
The terms "upper" and "lower" are used herein to describe the spatial orientation of the mixing apparatus in use, with the upper being "upper" and the lower being "lower".
Second exemplary embodiment
Fig. 11 and 12 show a second exemplary embodiment of the present invention. Wherein figure 11 shows the locking mechanism of the cartridge assembly in a locked position. Figure 12 shows the locking mechanism of the cartridge assembly in the unlocked position.
The second exemplary embodiment differs from the first exemplary embodiment in the following two points: (1) the specific structure of the first limiting member 220, the first receiving portion 111, and the second receiving portion 112; and (2) the specific structure of the second limiting member 113; as shown in the circled figure 11. These two points will be described in detail below.
In the second exemplary embodiment, the first stopper 220 is a third protrusion protruding from an inner wall of the lock ring, and the third protrusion includes a first inclined contact surface 221 and a second inclined contact surface 222. As shown in fig. 12, the protruding third protrusion is formed separately from and embedded inside the inner wall of the locking ring. Alternatively, the protruding third projection may be integrally formed with the inner wall of the locking ring.
The outer surface of the main body 110 is provided with a spring plunger 118, the first receiving portion 111 is a first elastic contact surface of the spring plunger, and the second receiving portion 112 is a second elastic contact surface of the spring plunger. When the locking mechanism is in the locked position, the first inclined contact surface 221 contacts the first resilient contact surface to limit axial movement of the locking ring 210 towards the sleeve 120; when the locking mechanism is in the unlocked position, the second sloped contact surface 222 contacts a second resilient contact surface to limit axial movement of the locking ring toward the stationary housing 300.
Specifically, when the locking mechanism is moved from the locked position to the unlocked position, the user applies an external force to the handle 215. Under the action of an external force, the first inclined contact surface 221 presses against the first elastic contact surface to compress the spring supporting the elastic surface, the spring being compressed such that the locking ring 210 passes over the portion where the first elastic contact surface is located. When the third projection passes over the portion where the first elastic contact surface is located, the second inclined contact surface 222 contacts the second elastic contact surface, and the axial movement of the lock ring 210 toward the stationary housing is restricted by the blocking action of the second elastic contact surface.
In the second exemplary embodiment, the second stopper 113 is a protrusion protruding from the outer surface of the main body 110.
Except for the above differences, the other structures of the second exemplary embodiment are the same as or similar to those of the first exemplary embodiment, and are not described again here.
To sum up, the utility model discloses a cartridge subassembly simple structure, easily operation especially provides convenience for using the device of operation from top to bottom, has greatly improved user experience.
Although some exemplary embodiments have been described herein by way of example, various modifications may be made to these embodiments without departing from the spirit of the invention, and all such modifications are intended to be included within the scope of the present invention as defined in the following claims.
The particular embodiments disclosed herein are illustrative only, as the invention may be modified in nature and equivalents thereof, apparent to those skilled in the art from the teachings herein, and, thus, the specific embodiments of the invention disclosed above are illustrative only, and are not to be considered in a limiting sense as to the details of construction or design herein disclosed unless otherwise specified in the claims. Accordingly, the particular illustrative embodiments disclosed above are susceptible to various substitutions, combinations or modifications, all of which are within the scope of the disclosure. The cartridge assemblies illustratively disclosed herein may still be suitably practiced in the absence of any element not specifically disclosed herein or in the absence of any optional component disclosed herein. All numbers and ranges disclosed above may also vary somewhat. Whenever a numerical range with a lower limit and an upper limit is disclosed, any number and any included range falling within the range is specifically disclosed. In particular, any range of values disclosed herein is to be understood as being inclusive of any of the values and ranges encompassed within the broader range of values. Also, the terms in the claims have their plain, ordinary meaning unless otherwise explicitly and clearly defined by the applicant.
In addition, the number of components in the claims includes one or at least one unless otherwise specified. If there is any inconsistency between the words or terms used in the present invention and the usage or meaning in other documents, the definitions of the words or terms used in the present invention shall be applied.
Claims (10)
1. A chuck assembly for a driver having a stationary housing, said chuck assembly comprising:
a collet (100) comprising a body (110) and a sleeve (120); and
a locking mechanism (200) located between the stationary housing (300) and the sleeve (120) and comprising at least two first protrusions (211), the at least two first protrusions (211) being spaced apart to define a first recess (212);
wherein the fixed housing (300) is provided with a second protrusion (310);
the locking mechanism (200) is adapted to move axially along an outer surface of the body (110) between a locked position and an unlocked position;
when the locking mechanism (200) is in the locked position, the second protrusion (310) is inserted into the first recess (212) to prevent the body (110) from rotating;
when the locking mechanism (200) is in the unlocked position, the second protrusion (310) disengages from the first recess (212) to allow the body (110) to rotate with the output shaft of the driver.
2. The chuck assembly for use with a driver having a stationary housing as in claim 1, wherein said locking mechanism includes a locking ring (210), said first protrusions (211) being located on a first side of said locking ring (210) proximate to said stationary housing (300) and being evenly spaced along an end of said first side.
3. The cartridge assembly for a driver having a stationary housing of claim 2,
the inner surface of the locking ring is provided with a groove (213);
the locking mechanism further comprises a first retaining member (220), a first portion of which is received within the recess (213), and a second portion of which protrudes from the recess (213);
the body has a first receiving portion (111) and a second receiving portion (112), either of the first receiving portion (111) and the second receiving portion (112) being adapted to receive a second portion of the first retaining member to limit axial movement of the locking ring (210).
4. A cartridge assembly for a driver having a stationary housing as recited in claim 3,
the first limiting piece (220) is a C-shaped ring;
either one of the first receiving portion (111) and the second receiving portion (112) is a groove provided on an outer surface of the main body (110).
5. A cartridge assembly for a driver having a stationary housing as recited in claim 3,
the first retaining member (220) is a third protrusion protruding from an inner wall of the locking ring, the third protrusion comprising a first inclined contact surface (221) and a second inclined contact surface (222);
a spring plunger (118) is arranged on the outer surface of the main body, the first receiving part (111) is a first elastic contact surface of the spring plunger (118), and the second receiving part (112) is a second elastic contact surface of the spring plunger (118);
wherein the first inclined contact surface (221) contacts the first resilient contact surface to limit axial movement of the locking ring (210) towards the sleeve (120) when the locking mechanism is in the locked position;
the second sloped contact surface (222) contacts the second resilient contact surface to limit axial movement of the locking ring (210) toward the stationary housing (300) when the locking mechanism is in the unlocked position.
6. The chuck assembly for use with a driver having a stationary housing according to claim 2, wherein an outer surface of said body (110) is provided with a second stop (113), said second stop (113) being configured to limit axial movement of said locking ring (210) towards said stationary housing (300) when said locking mechanism is in said locked position.
7. A cartridge assembly for a driver having a stationary housing as recited in claim 6,
the second limiting part (113) is a clamp spring; and
the outer surface of the body (110) has a third receiving portion (114) adapted to receive the circlip.
8. The chuck assembly for a driver having a fixed housing according to claim 6, wherein said second retaining member (113) is a protrusion protruding from an outer surface of said main body (110).
9. The cartridge assembly for a driver having a stationary housing of claim 2,
the sleeve (120) having a stop portion (121), the stop portion (121) configured to contact an end of a second side of the locking ring (210) when the locking mechanism is in the unlocked position to limit axial movement of the locking ring (210); and/or
The inner surface of the sleeve (120) has a radial plane (122), the radial plane (122) configured to contact an outer surface of a second side of the locking ring (210) when the locking mechanism is in the unlocked position to limit axial movement of the locking ring (210);
wherein a second side of the locking ring is arranged opposite to a first side of the locking ring and a protruding grip (215) is provided between the second side and the first side.
10. The cartridge assembly for a driver having a stationary housing of claim 2,
the outer surface of the body (110) has at least two first planes (115); and
the inner surface of the locking ring (210) has a second flat surface (214) adapted to conform to the first flat surface (115).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922305809.6U CN211491358U (en) | 2019-12-20 | 2019-12-20 | Chuck assembly for a driver having a stationary housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922305809.6U CN211491358U (en) | 2019-12-20 | 2019-12-20 | Chuck assembly for a driver having a stationary housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211491358U true CN211491358U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922305809.6U Active CN211491358U (en) | 2019-12-20 | 2019-12-20 | Chuck assembly for a driver having a stationary housing |
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| Country | Link |
|---|---|
| CN (1) | CN211491358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023025148A1 (en) * | 2021-08-24 | 2023-03-02 | 山东威达机械股份有限公司 | Clamping mechanism and electric tool |
-
2019
- 2019-12-20 CN CN201922305809.6U patent/CN211491358U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023025148A1 (en) * | 2021-08-24 | 2023-03-02 | 山东威达机械股份有限公司 | Clamping mechanism and electric tool |
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