CN213788292U - Liftable shifter - Google Patents

Abstract

The utility model discloses a liftable shifter, include: the base frame assembly is arranged on the base frame assembly and comprises a first base frame and a second base frame which are rotatably arranged on the base frame assembly; the connecting rod lifting mechanism comprises a connecting rod group arranged between the underframe assembly and the seat frame assembly and a connecting rod driving mechanism capable of driving the connecting rod group to displace or deform, and the distance between the underframe assembly and the seat frame assembly can be adjusted when the connecting rod group displaces or deforms; the height adjustment of the seat frame component is realized through the deformation of the connecting rod group, and the height adjustment of the seat frame component can be carried out when a patient is carried, so that the adjustment is convenient; and stepless regulation can be realized, the height can be regulated to any height within the height regulation range, the applicability is strong, the use is more convenient, and the use effect is better.

Description

Liftable shifter

Technical Field

The utility model relates to the field of medical equipment, in particular to liftable shifter.

Background

The shifter in the medical equipment is usually used for transferring a patient who cannot walk independently and generally comprises a seat which is opened in half and in half at the left and right, wherein the lower part of the seat is provided with rollers, when the shifter is used, the shifter is pushed to the bedside, the seat is pushed onto a bed surface, the seat is opened at the left and right, the patient is moved to the position corresponding to the seat, then the seat is closed, the patient is adjusted to a proper sitting posture, the shifter can be pushed out, meanwhile, in order to adapt to beds with different heights, the shifter is also provided with a height adjusting device, such as Chinese patent No. CN201711074877.5, which is named as a convenient seat device, a seat device is provided, and a lifting mechanism is provided in the disclosed technical scheme, but the shifter adopts a multi-stage lifting mechanism, the adjusting operation is complicated, the height adjustment cannot be carried out when the patient is carried, the use condition of the height adjustment is very inconvenient, such as the conversion between a high bed and a low bed, The condition such as the pedestal toilet of shifting to the difference of height, this technical scheme can't satisfy the operation requirement to adopt hierarchical multistage to adjust, unable accurate adjustment seat height limits application range, and the result of use is not good.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a liftable shifter, it is convenient to adjust.

According to the utility model discloses a liftable shifter of first aspect embodiment, include: the base frame assembly is arranged on the base frame assembly and comprises a first base frame and a second base frame which are rotatably arranged on the base frame assembly; the connecting rod lifting mechanism comprises a connecting rod group arranged between the underframe assembly and the seat frame assembly and a connecting rod driving mechanism capable of driving the connecting rod group to displace or deform, and the distance between the underframe assembly and the seat frame assembly can be adjusted when the connecting rod group displaces or deforms.

According to the utility model discloses liftable shifter has following beneficial effect at least: the height adjustment of the seat frame assembly is realized through the deformation of the connecting rod group, the height adjustment of the seat frame assembly can be carried out when a patient is carried, and the adjustment is convenient.

And stepless regulation can be realized, the height can be regulated to any height within the height regulation range, the applicability is strong, the use is more convenient, and the use effect is better.

In some embodiments of the utility model, the linkage includes at least one connecting rod, and the connecting rod includes expansion end and rotation end, rotates the end and rotates and set up at chassis subassembly or seat frame subassembly, and connecting rod actuating mechanism can drive the connecting rod and rotate, and what the expansion end can correspond when the connecting rod rotates bulldozes on seat frame subassembly or chassis subassembly to realize the function of adjusting the distance between chassis subassembly and the seat frame subassembly, realize the altitude mixture control promptly.

In some embodiments of the utility model, the connecting rod lifting mechanism further comprises a mobile station, the mobile station is arranged below the base frame component, the rotating end is rotatably arranged on the base frame component, the movable end pushes the base frame component to ascend by pushing and pressing the mobile station, the driving structure is more reasonable,

and through setting up the mobile station, can realize the balanced drive to first seat frame and second seat frame, improve the stability and the reliability of mechanism.

The utility model discloses an in some embodiments, the rotatable movable block that is provided with on the movable end, the movable block is portable to be set up at the mobile station, and when the connecting rod rotated, the movable end can push away through the movable block and press at the mobile station, can avoid the connecting rod directly to bulldoze the mobile station, improves the reliability of mechanism.

The utility model discloses an in some embodiments, connecting rod drive mechanism is including rotating the screw rod that sets up on the mobile station and can driving screw rod pivoted driving piece, and movable block and screw rod screw-thread fit, mobile station can restrict the movable block rotatory for the screw rod, when rotating the screw rod through the driving piece, can drive the movable block and remove to drive the connecting rod simultaneously and rotate, bulldoze the mobile station through the movable block and remove, realize the altitude mixture control of seat frame subassembly.

In some embodiments of the present invention, the mobile station is a frame structure, and the moving block is disposed inside the mobile station and is restricted from rotating by a groove in the mobile station.

In some embodiments of the utility model, the driving piece is a handle, the handle is connected to the screw rod through the reduction gear set, realizes the drive to the connecting rod lifting mechanism through rotating the handle, makes things convenient for manual operation.

In some embodiments of the present invention, the handle extends to the outside of the shifter to facilitate adjustment for use by a person.

In some embodiments of the present invention, the moving block is provided with a roller at a position corresponding to the mobile station, so as to improve the smoothness of the moving block when the moving block slides relative to the mobile station.

The utility model discloses an in some embodiments, connecting rod actuating mechanism sets up the screw rod on the mobile station and can drive screw rod pivoted driving piece including rotating, and the movable end is last rotatable to be provided with the movable block, and movable block and screw rod screw-thread fit, mobile station can restrict the movable block rotatory for the screw rod, and the movable block can not contact with the mobile station, acts on the screw rod through the movable block, drives the mobile station by the screw rod again and removes, also can realize the drive to mobile station and first seat frame and second seat frame.

In some embodiments of the present invention, two sets of guide rods are disposed on the chassis assembly, the guide rods are disposed corresponding to the first and second seat frames, the first and second seat frames are respectively provided with sleeves sleeved on the corresponding guide rods, the two ends of the mobile station are respectively provided with sleeve portions sleeved on the two sets of guide rods, the sleeve portions are located below the sleeves, and the sleeves are pushed and pressed by the sleeve portions to move along with the first and second seat frames, so that the mechanism is stable and reliable.

The utility model discloses an in some embodiments, the connecting rod disposes two sets ofly, and two sets of connecting rods set up relatively, include two sets of spiro unions on the screw rod to opposite thread section, be provided with respectively on two sets of connecting rods corresponding with two sets of thread section screw-thread fit's movable block to improve driven stationarity.

Two sets of connecting rods set up relatively and are V type structure, and the rotation end of two sets of connecting rods is close to each other and rotate the connection on the chassis subassembly promptly, and the expansion end of two sets of connecting rods is kept away from each other and is acted on the mobile station, and during the rotatory screw rod, the expansion end relative motion of two sets of connecting rods adjusts the contained angle of two sets of connecting rods, can control the high position of mobile station.

The utility model discloses an in some embodiments, the front side of first seat frame and second seat frame is provided with the handle, and the handle is the crooked structure of upwards coiling, can improve the height of handle through this structure of upwards coiling under the prerequisite that does not change patient's handrail height to correspond with caregiver's the gesture of standing, make things convenient for caregiver pulling shifter, it is more convenient to use.

In some embodiments of the present invention, a locking device is disposed between the first seat frame and the second seat frame to lock the first seat frame and the second seat frame conveniently, so as to prevent the first seat frame and the second seat frame from being opened during the riding process, thereby improving the safety.

The locking device is a pull buckle mechanism, and locking is formed by adjusting the position of the handle.

In some embodiments of the invention, a snap-fit arrangement is provided between the first and second mounts to facilitate temporary locking of the first and second mounts.

The clamping device is a clamping part which is fixed on the first seat frame and is provided with a clamping groove corresponding to the pipe fitting of the second seat frame, and when the first seat frame and the second seat frame are folded, the pipe fitting of the second seat frame can be clamped into the clamping groove to realize temporary fixation.

In some embodiments of the present invention, the rear side of the first and second seat frames is provided with a rear armrest to facilitate the caregiver to push the shifter.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a liftable shifter according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the liftable shifter according to the embodiment of the present invention when lifted;

fig. 3 is an exploded schematic view of the liftable shifter according to the embodiment of the present invention;

fig. 4 is an exploded view of the link lifting mechanism according to the embodiment of the present invention;

fig. 5 is a schematic diagram of a back structure of the liftable shifter according to the embodiment of the present invention.

Reference numerals:

the undercarriage assembly 100, the guide bar 110, the moving roller 120;

a mount assembly 200, a first mount 210, a second mount 220, a bushing 230, a handle 240, a locker 250, a snap 260, a rear armrest 270;

the moving table 330, the connecting rod 311, the movable end 311a, the rotating end 311b, the moving block 312, the roller 313, the screw 321, the handle 322, the reduction gear set 323 and the sleeve portion 331.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

As shown in fig. 1 and fig. 2, the liftable shifter according to the embodiment of the present invention comprises: the undercarriage assembly 100, the seat frame assembly 200, and the link lifting mechanism, wherein the seat frame assembly 200 is arranged on the undercarriage assembly 100 and comprises a first seat frame 210 and a second seat frame 220 which are rotatably arranged on the undercarriage assembly 100; the connecting rod lifting mechanism comprises a connecting rod group arranged between the underframe assembly 100 and the seat frame assembly 200 and a connecting rod driving mechanism capable of driving the connecting rod group to displace or deform, when the connecting rod group displaces or deforms, the distance between the underframe assembly 100 and the seat frame assembly 200 can be adjusted, the height of the seat frame assembly 200 can be adjusted through the deformation of the connecting rod group, the height of the seat frame assembly 200 can be adjusted when a patient is carried, and the adjustment is convenient.

And can realize stepless regulation, can adjust to arbitrary height in the altitude mixture control within range, the suitability is strong, uses more convenient, and the result of use is better.

As shown in fig. 2, in some embodiments of the present invention, the linkage includes at least one connecting rod 311, the connecting rod 311 includes a movable end 311a and a rotatable end 311b, the rotatable end 311b is rotatably disposed on the base frame assembly 100 or the seat frame assembly 200, the connecting rod driving mechanism can drive the connecting rod 311 to rotate, and the movable end 311a can correspondingly push and press on the seat frame assembly 200 or the base frame assembly 100 when the connecting rod 311 rotates, so as to achieve the function of adjusting the distance between the base frame assembly 100 and the seat frame assembly 200, i.e., achieve the height adjustment.

Specifically, the connecting rod 311 is rotatably disposed on the bottom frame assembly 100 through the rotating end 311b, the movable end 311a thereof presses against the seat frame assembly 200, and when the connecting rod 311 rotates, the movable end 311a can press against the seat frame assembly 200 to lift up, or the seat frame assembly 200 can be freely dropped without pressing, thereby achieving the function of height adjustment.

Of course, in the implementation, the rotating end 311b of the link 311 can be rotatably disposed on the seat frame assembly 200, and the movable end 311a can be disposed to press against the bottom frame assembly 100, that is, the position of the link 311 is changed, so that the height adjustment function can be achieved.

It is contemplated that in some embodiments of the present invention, the linkage may also be a scissor-type lifting mechanism, with the cross-hinged links forming the lifting structure, and the lifting drive may be achieved by driving the links to rotate or driving the cross-hinged links to deform.

In addition, the linkage can also be a crank-link mechanism, and the pushing underframe assembly 100 and the seat frame assembly 200 can be moved relatively to realize height adjustment by driving a crank to rotate or a link to displace.

As shown in fig. 3 and 4, in some embodiments of the present invention, the link lifting mechanism further includes a moving platform 330, the moving platform 330 is disposed below the seat frame assembly 200, the rotating end 311b is rotatably disposed on the bottom frame assembly 100, the movable end 311a pushes the seat frame assembly 200 to ascend by pushing the moving platform 330, the driving structure is more reasonable,

further, by providing the moving table 330, the first mount 210 and the second mount 220 can be driven in a balanced manner, and the stability and reliability of the mechanism can be improved.

Of course, in the implementation, two sets of connecting rods 311 may be configured to drive the first mount 210 and the second mount 220, respectively, and will not be described in detail herein.

As shown in fig. 4, in some embodiments of the present invention, a movable block 312 is rotatably disposed on the movable end 311a, the movable block 312 is movably disposed on the movable stage 330, when the connecting rod 311 rotates, the movable end 311a can push the movable stage 330 through the movable block 312, which can prevent the connecting rod 311 from directly pushing the movable stage 330, thereby improving the reliability of the mechanism.

It is contemplated that in some embodiments of the present invention, a rolling or sliding structure such as a roller may be disposed on the movable end 311a to move the pressing force to drive the movable stage 330 to move.

As shown in fig. 4, in some embodiments of the present invention, the connecting rod driving mechanism includes a screw 321 rotatably disposed on the mobile station 330 and a driving member capable of driving the screw 321 to rotate, the moving block 312 is in threaded engagement with the screw 321, the mobile station 330 can limit the rotation of the moving block 312 relative to the screw 321, when the screw 321 is rotated by the driving member, the moving block 312 can be driven to move, and simultaneously the connecting rod 311 is driven to rotate, and the moving block 312 pushes and presses the mobile station 330 to move, thereby realizing the height adjustment of the seat frame assembly 200.

It is conceivable that, in the specific implementation process, the connecting rod driving mechanism may also be a push rod mechanism, one end of the push rod mechanism is hinged to the underframe assembly 100, the other end of the push rod mechanism is hinged to the middle part of the connecting rod, when the push rod mechanism extends or retracts, the connecting rod 311 can be pushed to rotate to realize height adjustment of the seat frame assembly 200, and the push rod mechanism can be driven by an air cylinder, a motor screw rod mechanism or a screw rod nut mechanism stirred by human hands, and the connecting rod 311 is driven to rotate through linear motion.

In some embodiments of the present invention, the mobile station 330 is a frame structure, and the moving block 312 is disposed inside the mobile station 330, and the slot in the mobile station 330 limits the rotation.

Of course, in the implementation process, a guide rod or a guide bar may be disposed on the moving stage 330, a guide hole or a guide groove slidably engaged with the guide rod may be disposed on the moving block 312, and the rotation of the moving block 312 relative to the screw 321 may also be limited by the guide rod or the guide bar.

As shown in fig. 4, in some embodiments of the present invention, the driving member is a handle 322, the handle 322 is connected to the screw rod 321 through a reduction gear set 323, and the driving of the link lifting mechanism is realized by rotating the handle 322, which facilitates manual operation.

Of course, in the specific implementation process, the handle can also drive the screw rod 321 through a synchronous belt mechanism, a chain mechanism, or directly connected with the screw rod.

In some embodiments of the present invention, the handle 322 extends to the outside of the shifter to facilitate adjustment for use by a person.

It is contemplated that in some embodiments of the present invention, the driving member may also be a motor mechanism, i.e., the motor drives the rotation of the screw 321, to achieve automatic adjustment.

As shown in fig. 4, in some embodiments of the present invention, a roller 313 is disposed at a position where the moving block 312 corresponds to the mobile station 330, so as to improve the fluency when the moving block 312 slides relative to the mobile station 330.

In some embodiments of the present invention, the connecting rod driving mechanism includes a screw 321 rotatably disposed on the moving platform 330 and a driving member capable of driving the screw 321 to rotate, a movable block 312 is rotatably disposed on the movable end 311a, the movable block 312 is in threaded fit with the screw 321, the moving platform 330 can limit the rotation of the movable block 312 relative to the screw 321, the movable block 312 may not contact with the moving platform 330, acts on the screw 321 through the movable block 312, the screw 321 drives the moving platform 330 to move, and the driving of the moving platform 330 and the first and second seat frames 210 and 220 can also be realized.

As shown in fig. 3, in some embodiments of the present invention, two sets of guide rods 110 are disposed on the chassis assembly 100 corresponding to the first and second seat frames 210 and 220, the first and second seat frames 210 and 220 are respectively provided with sleeves 230 sleeved on the corresponding guide rods 110, two ends of the movable table 330 are respectively provided with sleeve portions 331 sleeved on the two sets of guide rods 110, the sleeve portions 331 are located below the sleeves 230, and the sleeve 230 and the first and second seat frames 210 and 220 are pushed by the sleeve portions 331 to move, so that the mechanism is stable and reliable.

Of course, in the implementation, the sleeve may be disposed on the chassis assembly 100, the guide rod may be disposed on the first mount 210 and the second mount 220, the sleeve portion 331 may be sleeved on the guide rod, and the driving of the first mount 210 and the second mount 220 may be realized by pushing the root portions of the first mount 210 and the second mount 220.

As shown in fig. 4, in some embodiments of the present invention, the connecting rods 311 are configured with two sets, two sets of connecting rods 311 are disposed oppositely, the screw rod 321 includes two sets of screw thread sections opposite to each other, and two sets of connecting rods 311 are respectively disposed with corresponding moving blocks 312 engaged with two sets of screw thread sections to improve driving stability.

Specifically, the two sets of connecting rods 311 are arranged oppositely to form a V-shaped structure, that is, the rotating ends 311b of the two sets of connecting rods 311 are close to each other and are connected to the bottom frame assembly 100 in a rotating manner, the movable ends 311a of the two sets of connecting rods 311 are away from each other and act on the movable platform 330, and when the screw 321 is rotated, the movable ends 311a of the two sets of connecting rods 311 move relatively to adjust the included angle of the two sets of connecting rods 311, so that the height position of the movable platform 330 can be controlled.

It is contemplated that the links 311 may be configured in multiple sets, such as in the cross-over arrangement described above.

Certainly, in the specific implementation process, when the connecting rods 311 are arranged into two or more groups, the connecting rods 311 may also be distributed in parallel to form one or more parallel four-bar linkages, and the parallel four-bar linkages are deformed by driving the connecting rods 311 to rotate, so as to implement the lifting driving.

As shown in fig. 1, in some embodiments of the present invention, the front sides of the first seat frame 210 and the second seat frame 220 are provided with the handle 240, the handle 240 is an upward winding bending structure, and the height of the handle can be increased by the upward winding structure without changing the height of the armrest of the patient, so as to correspond to the standing posture of the caregiver, thereby facilitating the caregiver to pull the shifter, and the use is more convenient.

As shown in fig. 5, in some embodiments of the present invention, a locking device 250 is disposed between the first seat frame 210 and the second seat frame 220 to conveniently lock the first seat frame 210 and the second seat frame 220, so as to prevent the first seat frame 210 and the second seat frame 220 from being opened during the sitting process, thereby improving the safety.

Specifically, the locking device 250 is a pull-tab mechanism, which locks by adjusting the position of the pull tab.

Of course, the locking device 250 may also be a latch type locking mechanism or the like in specific implementations.

As shown in fig. 5, in some embodiments of the present invention, a snap device 260 is provided between the first mount 210 and the second mount 220 to facilitate temporary locking of the first mount 210 and the second mount 220.

Specifically, the fastening device 260 is a fastening member, which is fixed on the first seat frame 210 and provided with a clamping groove corresponding to the pipe of the second seat frame 220, and when the first seat frame 210 and the second seat frame 220 are folded, the pipe of the second seat frame 220 can be clamped into the clamping groove to realize temporary fixation.

Of course, in the implementation process, the fastening device 260 may also be a fastening of a hook connection, and a hook slot is provided on the first seat frame 210 and a hook is provided on the second seat frame 220, so that a temporary snap fit can be realized.

As shown in fig. 5, in some embodiments of the present invention, the rear sides of the first and second mounts 210 and 220 are provided with rear armrests 270 to facilitate the caregiver to push the shifter.

As shown in fig. 1, in some embodiments of the present invention, a plurality of moving rollers 120 are disposed on the bottom frame assembly 100 to facilitate movement.

In some embodiments of the present invention, the movable roller 120 may be a universal roller, a roller with a brake, or the like.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims (10)

1. A liftable shifter, comprising:

a chassis assembly (100);

a mount assembly (200), the mount assembly (200) disposed on an undercarriage assembly (100) comprising a first mount (210) and a second mount (220) rotatably disposed on the undercarriage assembly (100);

the connecting rod lifting mechanism comprises a connecting rod group arranged between the underframe assembly (100) and the seat frame assembly (200) and a connecting rod driving mechanism capable of driving the connecting rod group to displace or deform, and the distance between the underframe assembly (100) and the seat frame assembly (200) can be adjusted when the connecting rod group displaces or deforms.

2. Liftable displacer according to claim 1,

the linkage comprises at least one connecting rod (311), the connecting rod (311) comprises a movable end (311a) and a rotating end (311b), the rotating end (311b) is rotatably arranged on the base frame component (100) or the seat frame component (200), the connecting rod driving mechanism can drive the connecting rod (311) to rotate, and when the connecting rod (311) rotates, the movable end (311a) can correspondingly push and press the seat frame component (200) or the base frame component (100).

3. Liftable displacer according to claim 2,

the connecting rod lifting mechanism further comprises a moving table (330), the moving table (330) is arranged below the seat frame assembly (200), the rotating end (311b) is rotatably arranged on the underframe assembly (100), and the movable end (311a) pushes the seat frame assembly (200) to ascend by pushing the moving table (330).

4. Liftable displacer according to claim 3,

a moving block (312) is rotatably arranged on the movable end (311a), the moving block (312) is movably arranged on the moving platform (330), and when the connecting rod (311) rotates, the movable end (311a) can be pushed on the moving platform (330) through the moving block (312).

5. Liftable displacer according to claim 4,

the connecting rod driving mechanism comprises a screw rod (321) rotatably arranged on the moving platform (330) and a driving piece capable of driving the screw rod (321) to rotate, the moving block (312) is in threaded fit with the screw rod (321), and the moving platform (330) can limit the moving block (312) to rotate relative to the screw rod (321).

6. Liftable displacer according to claim 5,

the driving piece is a handle (322), and the handle (322) is connected to the screw rod (321) through a reduction gear set (323).

7. Liftable displacer according to claim 4,

and a roller (313) is arranged at the position of the moving block (312) corresponding to the moving platform (330).

8. Liftable displacer according to claim 3,

the connecting rod driving mechanism comprises a screw rod (321) rotatably arranged on the moving platform (330) and a driving piece capable of driving the screw rod (321) to rotate, a moving block (312) is rotatably arranged on the movable end (311a), the moving block (312) is in threaded fit with the screw rod (321), and the moving platform (330) can limit the moving block (312) to rotate relative to the screw rod (321).

9. Liftable displacer according to claim 5 or 8,

the connecting rods (311) are provided with two groups, the two groups of connecting rods (311) are arranged oppositely, the screw rod (321) comprises two groups of thread sections with opposite thread directions, and the two groups of connecting rods (311) are respectively provided with corresponding moving blocks (312) in thread fit with the two groups of thread sections.

10. Liftable displacer according to claim 3,

the underframe assembly (100) is provided with two groups of guide rods (110) which are arranged corresponding to the first seat frame (210) and the second seat frame (220), the first seat frame (210) and the second seat frame (220) are respectively provided with a sleeve (230) sleeved on the corresponding guide rods (110), two ends of the mobile station (330) are respectively provided with sleeve parts (331) sleeved on the two groups of guide rods (110), and the sleeve parts (331) are positioned below the sleeve (230).

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