Angle drill

Abstract

The invention discloses an angle drill, and relates to the technical field of angle drill use, the angle drill comprises a shell, a drill bit is arranged on the inner wall of the shell, a battery groove is formed in the end part of the shell, a grip is arranged on the surface of the shell, a driving part is arranged on the inner wall of the shell, the drill bit rotates through the arrangement of the driving part, and a heat dissipation part is arranged in the shell. The heat dissipation component is in transmission connection with the driving component, the fan rotates through the arrangement of the heat dissipation component, an auxiliary component is arranged on the surface of the shell, the grip rotates clockwise through the arrangement of the auxiliary component, the driving component comprises an electric controller, and the electric controller is fixedly connected with the inner wall of the shell through threads. According to the novel angle drill, through mutual cooperation of the structures, heat dissipation can be better conducted on internal parts, meanwhile, the stability during drilling can be improved, and the practicability of the angle drill is improved while more convenient use is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of angle drill use, in particular to an angle drill. Background Art

[0002] Angle drills are also called angle drills and angle hand drills. They have short working heads and small angle margins. They can be easily operated in places where ordinary electric drills are difficult to operate. They are suitable for motors with strong power and large traction. Angle drills can provide perfect drilling effects for work sites with narrow spaces. The unique shape of the engineering design makes the balance control more comfortable. They are specially designed for drilling operations in narrow spaces. However, the current angle drills still have the following problems in actual use: When the existing angle drill is used, due to the different weight ratios, the angle drill will vibrate when in use, so it needs to be manually held and pressed to ensure the drilling quality, which causes vibration between the user's palm and the angle drill, resulting in poor physical feeling during use, and may also cause problems with the drilling angle, resulting in deviations in the drilling angle; When drilling, the angle drill often needs to work for a long time. During long-term use, the internal parts of the angle drill will also generate a lot of heat. If the temperature is too high, the internal parts may melt or be damaged due to excessive temperature, making the angle drill unusable. In summary, when the existing angle drills are actually used, the actual user experience needs to be improved, and they cannot adapt to long-term use needs and still need to be improved. Summary of the invention

[0003] The object of the present invention is to provide an angle drill which has the effect of better heat dissipation and more convenient drilling, thereby solving the problems mentioned in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: an angle drill, comprising a shell, the inner wall of the shell is provided with a drill bit, the end of the shell is provided with a battery slot, and the surface of the shell is provided with a handle; A heat dissipation component is arranged inside the housing, and the heat dissipation component is transmission-connected with the driving component, and the fan is rotated by the arrangement of the heat dissipation component; An auxiliary component is disposed on the surface of the shell, and the handle is caused to rotate clockwise by the arrangement of the auxiliary component; The surface of the shell is also provided with an anti-slip component.

[0005] Optionally, the driving component includes: An electric controller, wherein the electric controller is fixedly connected to the inner wall of the shell by threads, a power switch is connected to the surface of the shell in a fixed-axis rotation manner, a double-headed motor is fixedly connected to the inner wall of the shell, the power switch is electrically connected to the double-headed motor and the electric controller respectively, a connecting shaft is fixedly connected to the output end of the double-headed motor, an auxiliary block is connected to the shaft wall of the connecting shaft in a fixed-axis rotation manner, a gasket is sleeved on the shaft wall of the connecting shaft, and a sleeve is sleeved on the surface of the auxiliary block; The sleeve is fixedly connected to the inner wall of the shell, the inner wall of the sleeve is rotatably connected with a circular tooth groove row, the inner wall of the circular tooth groove row is rotatably connected with three matching gears, the end of the connecting shaft is fixedly connected with teeth meshing with the teeth of the three matching gears, the inner wall of the sleeve is rotatably connected with a connecting plate, the surface of the connecting plate is fixedly connected with three rotating shafts 1, the three matching gears are respectively rotatably connected with the shaft walls of the three rotating shafts 1, a square groove is provided on the surface of the connecting plate, the groove wall of the square groove is detachably connected with a bevel gear, the rod wall of the bevel gear is rotatably connected with a shockproof plate, the surface of the shockproof plate is slidably connected with a stabilizing plate, the stabilizing plate is rotatably connected with the inner wall of the sleeve, the surface of the sleeve is fixedly connected with a protective shell 2 by bolts, the inner wall of the protective shell 2 is rotatably connected with a connecting rod, the rod wall of the connecting rod is fixedly connected with a face gear, the teeth of the face gear mesh with the teeth of the bevel gear, and the drill bit is detachably connected to the end of the connecting rod.

[0006] Optionally, the heat dissipation component includes: A connecting shaft, the end of which is fixedly connected to the fan, and the end of which is fixedly connected to the output end of the double-headed motor.

[0007] Optionally, the auxiliary components include: A rotating rod, the end of which is fixedly connected to the surface of the shell, a reset spring is sleeved on the rod wall of the rotating rod, the end of the rotating rod is rotatably connected to a block, the ends of the reset spring are respectively fixedly connected to the surfaces of the shell and the block, the surface of the shell is rotatably connected to a handle, the bottom surface of the handle is fixedly connected to a ratchet, and the surface of the ratchet fits the surface of the block.

[0008] Optionally, a plurality of heat dissipation holes are provided on the surface of the shell, and a plurality of anti-slip patterns are provided on the surface of the handle.

[0009] Optionally, the anti-slip component includes: An anti-skid pad is fixedly connected to the surface of the shell, and a plurality of anti-slip blocks are fixedly connected to the surface of the anti-skid pad.

[0010] Optionally, a transparent panel is fixedly connected to the surface of the shell, a lamp tube is fixedly connected to the inner wall of the shell, and the lamp tube is electrically connected to the double-head motor.

[0011] Optionally, the surface of the anti-slip pad is provided with anti-slip textures, and the anti-slip block is made of rubber.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention has high wheel transmission efficiency, stable transmission ratio, large arc overlap coefficient, high load-bearing capacity, stable transmission, reliable operation, compact structure, energy and material saving, space saving, wear resistance, long service life, low noise, and achieves the effect of more stable transmission and increased service life of the device through the setting of face gears and bevel gears.

[0013] 2. The present invention provides a fan and a connecting shaft, and when the angle drill is working for a long time, the internal parts will generate heat, which can better dissipate the heat for the internal parts, avoiding the situation where the parts are burned due to internal high temperature and cannot be used, thereby achieving the effect of increasing the stability of the angle drill and making it more convenient to use.

[0014] 3. The present invention can utilize the pressure that a person must apply when drilling to improve the stability of the equipment during operation through the handle by setting a block, a handle and a ratchet, thereby achieving the effect of stabilizing the vibration drilling of the angle drill while being more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a first isometric view of the structure of the present invention in a side view state; Figure 2 It is a connection diagram of the driving components of the structure of the present invention; Figure 3 A second isometric view of the structure of the present invention in a side view; Figure 4 It is a first axial side cross-sectional view of the structure of the present invention in a side view state; Figure 5 A diagram showing the connection relationship of the auxiliary components of the structure of the present invention; Figure 6 It is a first axial side cross-sectional view of the structure of the present invention in a bottom-up state; Figure 7 It is a second axial sectional view of the structure of the present invention in a side view state.

[0016] In the figure: 1. outer shell; 3. battery slot; 7. electric controller; 8. double-headed motor; 9. connecting shaft; 10. auxiliary block; 11. gasket; 12. sleeve; 13. circular tooth groove row; 14. matching gear; 15. connecting plate; 16. square groove; 17. bevel gear; 18. shockproof plate; 19. stabilizing plate; 20. protective shell II; 21. connecting rod; 22. face gear; 23. drill bit; 24. fan; 25. rotating rod; 26. reset spring; 27. block; 28. grip; 29. ​​ratchet; 30. anti-skid pad; 31. anti-sliding block; 32. transparent panel; 33. lamp tube; 34. power switch; 35. heat dissipation hole. Implementation

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0018] See also Figures 1 to 7 The present invention provides a technical solution: an angle drill, wherein a drill bit 23 is arranged on the inner wall of a shell 1, a battery slot 3 is opened at the end of the shell 1, and a handle 28 is arranged on the surface of the shell 1; The inner wall of the housing 1 is provided with a driving component, and the drill bit 23 is rotated by the setting of the driving component; A heat dissipation component is disposed inside the housing 1, and the heat dissipation component is transmission-connected to the driving component, and the fan 24 is rotated by the arrangement of the heat dissipation component; The surface of the housing 1 is provided with auxiliary components, and the handle 28 is caused to rotate clockwise by the arrangement of the auxiliary components; The surface of the housing 1 is also provided with anti-slip components.

[0019] More specifically, in this embodiment: when drilling is required, the drill bit 23 and the angle drill need to be assembled, and after the battery and the battery slot 3 are assembled, the drilling work can be performed; During the drilling process, the driving component is set to make the drill bit 23 rotate, so as to better provide kinetic energy for the drilling work; At the same time, the heat dissipation components are driven synchronously. Through the setting of the heat dissipation components, the fan 24 rotates at the same time, which can better dissipate heat for the internal components and is convenient to use; By providing the auxiliary components, the handle 28 can be rotated clockwise, making it more convenient for the user to apply force when drilling.

[0020] Embodiment 2, based on the above embodiment: See also Figure 2 , the components in the first embodiment are disclosed as follows, The drive components include: The electric controller 7 is fixedly connected to the inner wall of the housing 1 through threads, the surface of the housing 1 is connected to a power switch 34 in a fixed-axis rotation manner, the inner wall of the housing 1 is fixedly connected to a double-headed motor 8, the power switch 34 is electrically connected to the double-headed motor 8 and the electric controller 7 respectively, the output end of the double-headed motor 8 is fixedly connected to a connecting shaft 9, the shaft wall of the connecting shaft 9 is connected to an auxiliary block 10 in a fixed-axis rotation manner, the shaft wall of the connecting shaft 9 is sleeved with a gasket 11, and the surface of the auxiliary block 10 is sleeved with a sleeve 12; The sleeve 12 is fixedly connected to the inner wall of the housing 1, and the inner wall of the sleeve 12 is fixedly connected to a circular tooth row 13, and the inner wall of the circular tooth row 13 is fixedly connected to three matching gears 14, and the end of the connecting shaft 9 is fixedly connected to teeth meshing with the teeth of the three matching gears 14. The inner wall of the sleeve 12 is fixedly connected to a connecting plate 15, and the surface of the connecting plate 15 is fixedly connected to three rotating shafts 1. The three matching gears 14 are respectively connected to the shaft walls of the three rotating shafts 1. A square groove 16 is opened on the surface of the connecting plate 15. The square groove The groove wall of 16 is detachably connected with a bevel gear 17, the rod wall of the bevel gear 17 is fixedly rotatably connected with a shockproof plate 18, the surface of the shockproof plate 18 is slidably connected with a stabilizing plate 19, the stabilizing plate 19 is fixedly rotatably connected to the inner wall of the sleeve 12, the surface of the sleeve 12 is fixedly connected with a protective shell 20 by bolts, the inner wall of the protective shell 20 is fixedly rotatably connected with a connecting rod 21, the rod wall of the connecting rod 21 is fixedly connected with a face gear 22, the teeth of the face gear 22 are meshed with the teeth of the bevel gear 17, and the drill bit 23 is detachably connected to the end of the connecting rod 21.

[0021] More specifically, in this embodiment: when drilling is required, the drill bit 23 and the connecting rod 21 need to be assembled in advance. After the assembly is completed, the power switch 34 can be pressed to make the electric controller 7 work. The electric energy provided to the double-headed motor 8 can make the double-headed motor 8 rotate. The connection shaft 9 rotates synchronously through the rotation of the double-headed motor 8. The three matching gears 14 rotate synchronously through the rotation of the three matching gears 14. The connecting disk 15 is driven to rotate synchronously through the rotation of the connecting disk 15. The bevel gear 17 is driven to rotate synchronously through the rotation of the bevel gear 17. The face gear 22 rotates through the rotation of the face gear 22. The drill bit 23 is driven to rotate synchronously through the rotation of the face gear 22. In this way, the drill bit 23 in the rotating state can be used to drill holes in the objects to be processed. It is worth noting that compared with the existing transmission method, in this device, the auxiliary block 10 and the gasket 11 are arranged to enable the motor to output kinetic energy better, and prevent the output end from shifting due to long-term use, which may cause problems in power transmission. The circular tooth groove row 13, the shockproof plate 18 and the stabilizing plate 19 are arranged to make the bevel gear 17 and the face gear 22 more stable in kinetic energy transmission.

[0022] Embodiment 3, based on the above embodiment: See also Figure 7 , the components in the first embodiment are disclosed as follows, The heat dissipation components include: A connecting shaft, the end of which is fixedly connected to the fan 24 , and the end of which is fixedly connected to the output end of the double-headed motor 8 .

[0023] To be more specific, in this embodiment: when the double-headed motor 8 is started to rotate, the connecting shaft is synchronously driven to rotate, and the fan 24 is synchronously driven to rotate through the rotation of the connecting shaft. Through the rotation of the fan 24, wind flow can be generated inside the device, so that the heat emitted by the internal parts is processed by the wind, so that the machine will not be unable to work due to high temperature, which ensures the use efficiency and increases the user's physical sensation.

[0024] Embodiment 4, based on the above embodiment: See also Figure 6 , the components in the first embodiment are disclosed as follows, Auxiliary components include: A rotating rod 25, the end of which is fixedly connected to the surface of the outer shell 1, a reset spring 26 is sleeved on the rod wall of the rotating rod 25, the end of the rotating rod 25 is rotatably connected to a clamping block 27, the ends of the reset spring 26 are respectively fixedly connected to the surfaces of the outer shell 1 and the clamping block 27, a handle 28 is rotatably connected to the surface of the outer shell 1, a ratchet 29 is fixedly connected to the bottom surface of the handle 28, and the surface of the ratchet 29 fits the surface of the clamping block 27.

[0025] More specifically, in this embodiment, while using the device to drill a hole, in order to increase the stability of the drilling, the handle 28 can also be used for stability. Figure 6Taking the direction shown as an example, the handle 28 is rotated clockwise, and the ratchet 29 is first driven to rotate by the rotation of the handle 28. The rotation of the ratchet 29 pushes the block 27 to deflect counterclockwise. The counterclockwise deflection of the block 27 causes the reset spring 26 to deform. As the handle 28 continues to rotate, when the surface of the block 27 and the ratchet teeth of the ratchet 29 are separated by one unit, the block 27 will deflect and reset clockwise under the elastic potential energy of the reset spring 26, and re-engage with the ratchet 29, so that the ratchet 29 cannot rotate counterclockwise, that is, the handle 28 can only rotate clockwise, and cannot rotate counterclockwise. It can be seen that when rotating the handle 28 to perform stable angle drilling, the device is first held in the left hand for operation. After the handle 28 is deflected 270° clockwise, the user can hold the handle 28 with the right hand for use. At this time, due to the setting of the block 27, the handle 28 cannot be reset along the original path, that is, when the user operates the device, the device is held with both hands for drilling, and pressure can be applied forward conveniently. The handle 28 can greatly improve the user's operating stability. When drilling with both hands, the user can apply a forward force to the angle drill, and while maintaining the drilling state, the angle drill can be better stabilized, making the drilling angle more stable and accurate, more convenient for users to use, and avoiding the occurrence of drilling tilt.

[0026] Embodiment 5, based on the above embodiment: See also Figure 3 and Figure 6 , the components in the first embodiment are supplemented as follows: a plurality of heat dissipation holes 35 are provided on the surface of the housing 1, and a plurality of anti-slip patterns are provided on the surface of the handle 28.

[0027] More specifically, in this embodiment: the internal parts can also be cooled by the multiple heat dissipation holes 35 opened on the surface of the shell 1. At the same time, due to the setting of the fan 24, it cooperates with the multiple heat dissipation holes 35. During the drilling process, the angle drill can dissipate heat better, thereby ensuring the working efficiency of the angle drill and avoiding the situation where the temperature is too high and it cannot work. The multiple anti-slip textures on the surface of the handle 28 can prevent the user from slipping during use, thereby increasing the qualified rate of drilling and avoiding the situation where the drilling is misplaced due to hand slipping.

[0028] Embodiment 6, based on the above embodiment: See also Figure 1 , the components in the first embodiment are disclosed as follows, Anti-slip parts include: The anti-skid pad 30 is fixedly connected to the surface of the housing 1 , and a plurality of anti-sliding blocks 31 are fixedly connected to the surface of the anti-skid pad 30 .

[0029] More specifically, in this embodiment: the provision of the anti-slip pad 30 can ensure greater stability during pressing, and the provision of multiple anti-slip blocks 31 on the surface of the anti-slip pad 30 can better help the user increase the stability of the force when drilling, making it more convenient for the user to use.

[0030] Embodiment 7, based on the above embodiment: See also Figure 2 , the components in the first embodiment are supplemented as follows: a transparent panel 32 is fixedly connected to the surface of the shell 1 , a lamp tube 33 is fixedly connected to the inner wall of the shell 1 , and the lamp tube 33 is electrically connected to the double-headed motor 8 .

[0031] More specifically, in this embodiment: since the angle drill can provide a perfect drilling effect in a work site with a narrow space, through the setting of the lamp tube 33, when construction is carried out in an environment with insufficient brightness, better brightness can be provided for drilling, ensuring that the user can better observe whether the drilling position deviates, thereby ensuring the qualified rate of the drilling work.

[0032] Embodiment 8, based on the above embodiment: See also Figure 3 and Figure 6 , the following supplement is made to the components of the first embodiment: the surface of the anti-skid pad 30 is provided with anti-skid textures, and the material of the anti-sliding block 31 is rubber material.

[0033] The anti-skid pad 30 has anti-skid patterns, which can make operation more convenient during use, and increase friction to make it more convenient for users to exert force. The anti-sliding block 31 is made of rubber material to increase the comfort of the user's palm and is more convenient for long-term use.

[0034] Working principle: When the angle drill is used, the drill bit 23 and the angle drill need to be assembled. After the battery and the battery slot 3 are assembled, the drilling work can be carried out; In the process of drilling, through the setting of the bevel gear 17, the face gear 22 and the connecting disk 15, through the rotation of the double-headed motor 8, the connecting shaft 9 is synchronously driven to rotate, and through the rotation of the connecting shaft 9, the three matching gears 14 can be rotated, and through the rotation of the three matching gears 14, the connecting disk 15 is driven to rotate synchronously, and through the rotation of the connecting disk 15, the bevel gear 17 can be driven to rotate, and through the rotation of the bevel gear 17, the face gear 22 is synchronously driven to rotate, and the drill bit 23 can be rotated, and drilling can be performed; In this process, by setting the fan 24 and the connecting shaft, when the double-headed motor 8 is started to rotate, the connecting shaft can be driven to rotate, and the fan 24 is rotated synchronously by the rotation of the connecting shaft. The rotation of the fan 24 can better discharge the heat emitted by the internal parts, so that the machine will not fail to work due to high temperature, which ensures the use efficiency and increases the user's physical feeling. During the drilling process, through the setting of the rotating rod 25 and the ratchet 29, in order to increase the stability during drilling, the handle 28 can also be used for stability. The handle 28 can be rotated clockwise to drive the block 27 to deflect clockwise, and simultaneously drive the block 27 to deflect clockwise, so that the reset spring 26 is deformed. As the handle 28 continues to rotate, under the action of the reset spring 26, the block 27 is reset, and the surface of the ratchet 29 can continue to be pressed, so that the handle 28 cannot be rotated counterclockwise. Due to the setting of the block 27, while pressing the diagonal drill, a forward force can also be applied to the diagonal drill, so that the diagonal drill from two different angles can be stabilized, so that the drilling angle of the diagonal drill is more accurate.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An angle drill, comprising a housing (1), characterized in that: The inner wall of the housing (1) is provided with a drill bit (23), the end of the housing (1) is provided with a battery slot (3), and the surface of the housing (1) is provided with a handle (28); The inner wall of the housing (1) is provided with a driving component, and the drill bit (23) is caused to rotate by the setting of the driving component; A heat dissipation component is arranged inside the housing (1), the heat dissipation component is in driving connection with the driving component, and the fan (24) is caused to rotate by the arrangement of the heat dissipation component; An auxiliary component is provided on the surface of the housing (1), and the handle (28) is caused to rotate clockwise by the provision of the auxiliary component; The surface of the housing (1) is also provided with an anti-slip component.

2. The angle drill according to claim 1, characterized in that: The driving component comprises: An electric controller (7), the electric controller (7) being fixedly connected to the inner wall of the housing (1) by means of threads, a power switch (34) being rotatably connected to the surface of the housing (1), a double-headed motor (8) being fixedly connected to the inner wall of the housing (1), the power switch (34) being electrically connected to the double-headed motor (8) and the electric controller (7) respectively, an output end of the double-headed motor (8) being fixedly connected to a connecting shaft (9), an axis wall of the connecting shaft (9) being rotatably connected to an auxiliary block (10), a gasket (11) being sleeved on the axis wall of the connecting shaft (9), and a sleeve (12) being sleeved on the surface of the auxiliary block (10); The sleeve (12) is fixedly connected to the inner wall of the housing (1); the inner wall of the sleeve (12) is fixedly connected to a circular tooth groove row (13); the inner wall of the circular tooth groove row (13) is fixedly connected to three matching gears (14); the end of the connecting shaft (9) is fixedly connected to teeth meshing with the teeth of the three matching gears (14); the inner wall of the sleeve (12) is fixedly connected to a connecting disk (15); the surface of the connecting disk (15) is fixedly connected to three rotating shafts; the three matching gears (14) are respectively fixedly connected to the shaft walls of the three rotating shafts; the surface of the connecting disk (15) is provided with a square groove (16); the square groove (16) ) is detachably connected to a bevel gear (17), a rod wall of the bevel gear (17) is fixedly rotatably connected to a shockproof plate (18), a surface of the shockproof plate (18) is slidably connected to a stabilizing plate (19), the stabilizing plate (19) is fixedly rotatably connected to the inner wall of the sleeve (12), the surface of the sleeve (12) is fixedly connected to a protective shell (20) by bolts, the inner wall of the protective shell (20) is fixedly rotatably connected to a connecting rod (21), the rod wall of the connecting rod (21) is fixedly connected to a face gear (22), the teeth of the face gear (22) mesh with the teeth of the bevel gear (17), and the drill bit (23) is detachably connected to the end of the connecting rod (21).

3. The angle drill according to claim 2, characterized in that: The heat dissipation component comprises: A connecting shaft, the end of which is fixedly connected to the fan (24), and the end of which is fixedly connected to the output end of the double-headed motor (8).

4. The angle drill according to claim 3, characterized in that: The auxiliary components include: A rotating rod (25), the end of which is fixedly connected to the surface of the housing (1), a return spring (26) is sleeved on the rod wall of the rotating rod (25), the end of which is rotatably connected to a clamping block (27), the ends of which are respectively fixedly connected to the surfaces of the housing (1) and the clamping block (27), a handle (28) is rotatably connected to the surface of the housing (1), a ratchet (29) is fixedly connected to the bottom surface of the handle (28), and the surface of the ratchet (29) is in contact with the surface of the clamping block (27).

5. The angle drill according to claim 4, characterized in that: The surface of the housing (1) is provided with a plurality of heat dissipation holes (35), and the surface of the handle (28) is provided with a plurality of anti-slip patterns.

6. The angle drill according to any one of claims 1 to 5, characterized in that: The anti-slip component comprises: An anti-skid pad (30), the anti-skid pad (30) being fixedly connected to the surface of the housing (1), and a plurality of anti-sliding blocks (31) being fixedly connected to the surface of the anti-skid pad (30).

7. The angle drill according to claim 5, characterized in that: A transparent panel (32) is fixedly connected to the surface of the shell (1), a light tube (33) is fixedly connected to the inner wall of the shell (1), and the light tube (33) is electrically connected to the double-headed motor (8).

8. The angle drill according to claim 6, characterized in that: The surface of the anti-skid pad (30) is provided with anti-skid patterns, and the anti-sliding block (31) is made of rubber.

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