Cigarette placement device with an ashtray

By designing a cigarette placement device with a cigarette installation area and an automatic cigarette butt disposal mechanism, the existing ashtrays are solved and the inconvenience of cigarette butt disposal during smoking, achieving a clean smoking experience and hygienic cigarette butt disposal.

CN118830660BActive Publication Date: 2025-05-27李京日
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202410305640.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2024-02-16
Filing Date
2024-03-18
Publication Date
2025-05-27
Estimated Expiration
2044-03-18

AI Technical Summary

Technical Problem

The existing ashtrays need to frequently bounce off the ash during smoking, causing the ash to fall or fly away, contaminating the smoking place, and after smoking, you need to touch the cigarette with your hands to discard the cigarette butts, causing the smell of smoke to penetrate into your hands.

Method used

A cigarette placing device with an ashtray was designed. By setting a cigarette installation area on the outside of the storage box, using the elastic rotation mechanism of the circular actuation plate and the cigarette fixing plate, the cigarette is inserted into the storage box, and the cigarette butt is automatically discarded into the storage box after smoking, and at the same time, the flame of the cigarette butt is extinguished by closing the upper lid.

Benefits of technology

It is possible to discard cigarette butts without touching the cigarette with your hands during smoking, avoiding the pollution of smoking places by ash or cigarette butts, keeping the smoking places clean, and preventing the smell of cigarettes from penetrating into the hands.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118830660B_ABST
    Figure CN118830660B_ABST
Patent Text Reader

Abstract

The present invention relates to a cigarette placement device with an ashtray. More specifically, in the cigarette placement device with an ashtray, a cigarette installation area (30) having a cigarette insertion hole (33) formed therethrough is provided on the outside of a storage box (10) whose upper lid is locked or unlocked and opened upward. Since the circular actuator plate (35) elastically rotates by the operation of a rod and the cigarette fixing plate (37) rotates by an axis to open the cigarette insertion hole and insert a cigarette into the cigarette installation area, the circular actuator plate (35) elastically returns and the cigarette fixing plate (37) rotates by an axis to press and fix the cigarette. Therefore, a smoker smokes while holding the storage box, and the ashtray is collected inside the storage box. After smoking, the cigarette butt is also inserted into the storage box and discarded. Therefore, smoking places such as inside a vehicle or indoors are kept clean without being contaminated by cigarette ash or cigarette butts.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to a cigarette placement device having an ashtray. More specifically, the present invention relates to a cigarette placement device having an ashtray in which, since a cigarette is inserted and installed inside a storage case, when smoking while holding the storage case by hand, not only is ash collected inside the storage case, but also a cigarette butt is inserted into the storage case and discarded after smoking is finished. Background Art

[0002] Generally, when smoking inside a vehicle, indoors, or outdoors, an ashtray needs to be provided and used to discard ash or cigarette butts.

[0003] These ashtrays are manufactured and used in various forms, such as circular or polygonal independent articles or combined articles incorporated into separate facilities, and are configured to form a placement groove where a smoker can temporarily place a cigarette during smoking and a space portion for flicking off ash generated during smoking of the cigarette or discarding a cigarette butt after smoking is finished.

[0004] That is, when a smoker holds a cigarette and smokes, when ash is generated, the ash is flicked into the ashtray, and when smoking is finished, the cigarette butt is pressed against the bottom of the ashtray to extinguish the flame and discarded.

[0005] However, since the above-mentioned conventional ashtrays require a smoker to repeatedly flick off ash every time ash is generated, there are not only problems such as ash accidentally falling on the surrounding ground instead of inside the ashtray, but also problems such as ash in the ashtray scattering to the surroundings and the smoking area being contaminated with ash.

[0006] In particular, in the case of smoking areas inside a vehicle or in a narrow indoor space, there are not only problems such as ash falling and causing pollution and the need to frequently clean the ash, but also various problems such as the smell of cigarettes pervading due to the accumulation of ash in the smoking area.

[0007] Moreover, since existing smokers smoke while holding a cigarette between their fingers and press it into the ashtray with their hands to extinguish the flame after smoking, there is a problem that the smell of cigarettes seriously penetrates into the smoker's hands.

[0008] (Prior Art Documents)

[0009] (Patent Documents)

[0010] Utility Model Publication No. 20-2012-0004401 (June 20, 2012)

[0011] Authorized Patent No. 10-1177400 (August 21, 2012)

[0012] Utility Model Publication No. 20-1995-0032810 (December 16, 1995) Summary of the Invention

[0013] Technical Problem to be Solved

[0014] The present invention is invented to solve all the problems existing in the above-mentioned prior art. The purpose of the present invention is that, since the cigarette is inserted and installed inside the storage box, when smoking in the state of holding the storage box by hand, not only the cigarette ash is collected inside the storage box, but also the cigarette butt is inserted into the storage box and discarded after smoking, so it can be used while keeping the smoking place clean.

[0015] The purpose of the present invention is that not only can the cigarette be discarded without touching the cigarette by hand during or after smoking, but also the flame of the cigarette butt can be extinguished by closing the upper lid of the storage box and it can be used hygienically.

[0016] Solution to the Problem

[0017] Such a present invention includes: a storage box, in which a storage space for storing cigarette ash and cigarette butts is formed inside; an upper lid, which is pivotally coupled to the upper part of the storage box, locked or unlocked by a locking member and automatically opened upward by the elastic force of a spring; and a cigarette installation area, which is coupled to the outer side of the storage box, and the front end of the cigarette is inserted into the storage space through a cigarette insertion hole formed in the center to be fixed and installed. Thus, the smoker smokes while holding the storage box, and the cigarette ash is collected inside the storage box, and the cigarette butt is also inserted into the storage box and discarded after smoking.

[0018] According to the present invention, in the cigarette installation area, a circular actuating plate is inserted and arranged in a circular housing in such a way that it can rotate within a certain range by the operation of a rod on one side. A cigarette insertion hole is formed through the front and back of the center of the circular housing. In front of the circular actuating plate, cigarette fixing plates for blocking the cigarette insertion hole are arranged at equal angular positions. At the inner and outer side positions of each cigarette fixing plate, each cigarette fixing plate is pivotally coupled to the circular actuating plate and the housing through a first shaft portion and a second shaft portion. The housing and the circular actuating plate are arranged in an elastically connected manner with a tension spring. When the circular actuating plate elastically rotates by the operation of the rod, the cigarette fixing plate rotates around the second shaft portion as the central axis to open the cigarette insertion hole and insert the cigarette. When the circular actuating plate elastically returns, the cigarette fixing plate rotates around the second shaft portion as the central axis to press and fix the cigarette in the cigarette insertion hole.

[0019] According to the present invention, three cigarette fixing plates are provided at equiangular positions on the front surface of the circular actuating plate as positions for pressing and fixing cigarettes. A circular concave portion corresponding to the outer curved surface of the cigarette is formed inside the cigarette fixing plate.

[0020] According to the present invention, the locking member includes: a locking groove formed on one side of the upper lid; and a locking actuating area on which a locking portion is formed. The locking portion vertically protrudes from one side of the upper end of the storage box and operates to be locked into the locking groove. When the circular actuating plate elastically rotates by the operation of the rod, the locking actuating area unlocks through a linkage operation to automatically open the upper lid.

[0021] According to the present invention, the locking actuating area is axially arranged to rotate back and forth around its center and is elastically supported by an elastic member. A circular protrusion is formed to protrude toward the side position of the locking actuating area on the circular actuating plate. When the circular actuating plate elastically rotates, the circular protrusion presses the lower part of the locking actuating area and the locking actuating area performs a locking release operation by rotating around the axis.

[0022] According to the present invention, a recess is formed in the center of the lower part of the storage box, and a through hole is formed at the upper end of the recess. A pusher is inserted into the recess in a manner of being elastically supported by a buffer spring. The upper end of the pusher is inserted into the storage space through the through hole, and the lower end of the pusher protrudes downward from the bottom surface of the storage box. Its upper end is supported by a supporting ridge to prevent it from detaching from the through hole. When the storage box is placed on the ground, the pusher elastically moves up and down to flick the front end of the cigarette, thereby separating the ashtray.

[0023] Effects of the Invention

[0024] In such a present invention, a cigarette installation area with a cigarette insertion hole formed therethrough is provided on the outside of the storage box whose upper lid is locked or unlocked and opened upward. The circular actuating plate elastically rotates by the operation of the rod to open the cigarette insertion hole of the cigarette fixing plate, whereby a cigarette can be inserted into the inside of the cigarette installation area. The circular actuating plate elastically returns to press and fix the cigarette by the cigarette fixing plate. Thus, a smoker can smoke while holding the storage box, and the ashtray is collected inside the storage box. After smoking, the cigarette butt is also inserted into the inside of the storage box and discarded. Therefore, it has the effect of keeping the smoking place clean by avoiding contamination of the smoking place such as inside a vehicle or a room by the ashtray or the cigarette butt.

[0025] In particular, not only can a smoker hold the storage box with his hand to smoke, but also he does not need to touch the cigarette with his hand after smoking to discard it into the inside of the storage box. Moreover, the flame of the cigarette butt can be extinguished by closing the upper lid of the storage box. Therefore, it has the effect of preventing the smell of smoke from penetrating into the smoker's hand and enabling hygienic smoking. Brief Description of the Drawings

[0026] Figure 1 is an external perspective view showing the overall structure of the ashtray of the present invention.

[0027] Figure 2 is Figure 1 an external perspective view with the upper lid in an open state.

[0028] Figure 3 is Figure 1 a side sectional view.

[0029] Figure 4 is a front sectional view showing the internal structure of the cigarette installation area of the present invention.

[0030] Figure 5 is showing Figure 4 a front sectional view of the usage state with a cigarette installed therein.

[0031] Figure 6 is showing Figure 4 a front sectional view of another embodiment.

[0032] Figure 7 is an enlarged sectional view showing the main part of the locking mechanism of the present invention.

[0033] Figure 8 is Figure 7 a front view of the main part.

[0034] Figure 9 is Figure 7 an operation diagram.

[0035] Figure 10 is a usage state diagram of installing and using a cigarette on the ashtray of the present invention.

[0036] Figure 11 is a side sectional view showing another embodiment of the present invention.

[0037] Figure 12 is showing Figure 11 a sectional composition diagram of the main part of the operation usage state.

[0038] (Description of reference numerals)

[0039] 10: storage box 12: storage space part

[0040] 15: recessed part 16: through hole

[0041] 20: upper lid 22: spring

[0042] 30: cigarette installation area 31: housing

[0043] 33: cigarette insertion hole 35: circular actuator plate

[0044] 36: Rod 37: Cigarette fixing plate

[0045] 37a, 27b: First shaft portion, second shaft portion 37c: Circular concave portion

[0046] 38: Tension spring 50: Locking member

[0047] 51: Locking groove 52: Locking activation area

[0048] 52a: Locking portion 53: Elastic member

[0049] 60: Promoter 61: Support rib portion

[0050] 65: Buffer spring Detailed implementation manner

[0051] Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0052] As Figures 1 to 9 shown, the cigarette placement device with an ashtray according to the present invention is composed of a storage box 10, an upper lid 20, and a cigarette installation area 30. The smoker smokes while holding the storage box instead of the cigarette, and the ashtray is collected inside the storage box. After smoking, the cigarette butt is also inserted into the storage box and discarded.

[0053] The storage box 10 has a storage space portion 12 formed inside for storing and keeping the ashtray and cigarette butts. It preferably has a cylindrical structure with a size that can be held by hand by the smoker. Of course, in addition to the cylindrical structure, it can also be formed into a polygonal structure.

[0054] The upper lid 20 is axially coupled to the upper part of the storage box so that it can be opened and closed up and down, and is locked or unlocked by the locking member 50 and automatically opened upward by the elastic force of the spring 22.

[0055] That is, since smoking is carried out with the upper lid 20 open, and the upper lid 20 is closed and sealed after smoking, not only the ashtray inside the storage box is prevented from scattering, but also the flame of the ashtray or cigarette butt can be quickly extinguished.

[0056] Of course, the locking member 50 can be configured in various structures.

[0057] The cigarette installation area 30 is formed on the outer side surface of the storage box 10 in an integral or combined structure, and the front end portion 2a of the cigarette 2 is inserted into the storage space portion 12 through the cigarette insertion hole 33 formed in the center for fixing and installation.

[0058] In particular, in the cigarette installation area 30, a circular actuating plate 35 is inserted into a circular housing 31 in such a way that it can rotate within a certain range by the operation of a rod 36 on one side. A cigarette insertion hole 33 is formed through the center of the circular housing 31 in the front and rear directions.

[0059] At this time, the rod 36 protrudes to the outside through a guiding long hole 31a on the side of the housing, so that the rod 36 can be rotated along the guiding long hole 31a and rotate within a certain range.

[0060] In addition, in front of the circular actuating plate 35, cigarette fixing plates 37 for blocking the cigarette insertion hole 33 are arranged at equal angular positions. At the inner and outer side positions of each cigarette fixing plate, each cigarette fixing plate 37 is respectively axially coupled to the circular actuating plate and the housing through a first shaft portion 37a and a second shaft portion 37b. The housing 31 and the circular actuating plate 35 are arranged in such a way that they are elastically connected by a tension spring 38. When the circular actuating plate 35 elastically rotates by the operation of the rod, the cigarette fixing plate 37 rotates around the second shaft portion as the central axis to open the cigarette insertion hole 33 and allow a cigarette to be inserted. When the circular actuating plate elastically returns, the cigarette fixing plate rotates (returns and rotates) around the second shaft portion as the central axis to press and fix the cigarette in the cigarette insertion hole.

[0061] The cigarette fixing plates 37 can be arranged in various shapes and according to various requirements. Preferably, three are arranged at equal angular positions in front of the circular actuating plate 35, as Figure 6 shown. As the positions for pressing and fixing the cigarette, circular concave portions 37c corresponding to the outer curved surface of the cigarette can be formed on the inner side of the cigarette fixing plates 37.

[0062] The locking member 50 includes: a locking groove 51 formed on one side of the upper lid 20; and a locking actuating area 52 on which a locking portion 52a is formed. The locking portion 52a vertically protrudes from one side of the upper end of the storage box 10 to perform the operation of being locked to the locking groove 51. When the circular actuating plate 35 elastically rotates by the operation of the rod, the locking actuating area 52 releases the lock through a linkage operation and automatically opens the upper lid 20.

[0063] That is, by the operation of the rod 36, the cigarette insertion hole 33 is opened to insert and install a cigarette, and at the same time, the upper lid 20 is opened so that the smoker can smoke.

[0064] In addition, the locking actuation area 52 is axially arranged to rotate back and forth at its center, and is elastically supported by an elastic member 53 such as a torsion spring. A circular protrusion 35a is formed to protrude toward the side position of the locking actuation area on the circular actuation plate. When the circular actuation plate elastically rotates, the circular protrusion moves to the lower position of the locking actuation area 53 and presses the lower part of the locking actuation area, so that the locking actuation area 52 can be configured to perform a locking release operation by axial rotation or perform a linkage operation in various other structures.

[0065] On the other hand, as Figure 11 and Figure 12 shown, the present invention can be implemented in different ways. A recess 15 is formed at the lower center of the storage box 10, and a through hole 16 is formed at the upper end of the recess. The pusher 60 is inserted into the recess 15 in a manner of being elastically supported by a buffer spring 65, and the upper end of the pusher 60 is inserted into the storage space through the through hole 16.

[0066] At this time, the lower end of the pusher 60 protrudes downward from the bottom surface of the storage box, and its upper end is supported by a support rib 61 to prevent it from detaching from the through hole 16. When the storage box is placed on the ground, the pusher elastically lifts and knocks off the front end of the cigarette, thereby separating the ashtray.

[0067] As an unillustrated symbol, 54 represents a shaft portion formed at the center of the locking actuation area for setting the shaft assembly.

[0068] Next, the operation and function of the present invention having the above-described configuration will be described.

[0069] First, the smoker inserts the cigarette 2 into the storage box 10 through the cigarette insertion hole 33 of the cigarette installation area 30 combined with the outside of the storage box 10.

[0070] More specifically, the rod 36 protruding from the housing 31 side of the cigarette installation area is rotated upward.

[0071] In this way, by means of the operation of the rod, the circular actuation plate 35 inserted into the housing stretches the tension spring 38 and elastically rotates within a certain range.

[0072] At this time, the cigarette fixing plate 37 rotates axially to open the central cigarette insertion hole 33, and the cigarette fixing plate 37 is arranged circumferentially and equiangularly at the front center of the circular actuation plate 35.

[0073] That is, the cigarette fixing plate 37 is axially coupled to the circular actuation plate 35 and the housing 31 through the first shaft portion 37a and the second shaft portion 37b. When the circular actuation plate 35 elastically rotates, the cigarette fixing plate 37 rotates around the second shaft portion as the central axis to open the cigarette insertion hole 33.

[0074] In this way, when the cigarette insertion hole 33 in the cigarette installation area is opened, the smoker inserts a cigarette for insertion and installation, such that the front end portion 2a of the cigarette is located in the storage space portion 12 inside the storage box.

[0075] In this state, when the rotation operation of the rod 36 is stopped, the circular actuator plate 35 returns and rotates by the elastic force of the tension spring 38. At the same time, the cigarette fixing plate 37 in front of the circular actuator plate 35 rotates about the second shaft portion to its original position, thereby pressing and fixing the cigarette 2 inserted and installed into the cigarette insertion hole 33.

[0076] At this time, a circular recess 37c is formed inside the cigarette fixing plate 37, such that the circular recess wraps around the cigarette and presses and fixes it. Therefore, the cigarette can be well fixed and installed without moving.

[0077] In this way, by operating the rod 36, the cigarette insertion hole 33 in the cigarette installation area is opened and the cigarette is inserted and installed. At the same time, when the rotation operation of the rod 36 is performed, the locking member 50 performs an unlocking operation and the upper lid 20 on the upper part of the storage box 10 is automatically opened upward by the elastic force of the spring 22.

[0078] This is because the circular actuator plate 35 elastically rotates by operating the rod 36, and the circular protrusion 35a protruding from the circular actuator plate moves from the lateral position below the locking actuator area 52 to the positive position, thereby pushing the lower part of the locking actuator area 52 forward. Therefore, the locking actuator area 52 rotates about its front and rear axes.

[0079] In this way, the locking actuator area 53 rotates about its front and rear axes and the locking portion 52a of the locking actuator area disengages from the locking groove 51 on one side of the upper lid 20. Thus, the upper lid 20 is opened upward by the elastic force of the spring 22.

[0080] In this way, the upper lid 20 on the upper part of the storage box 10 is opened, and the cigarette 2 is installed in the cigarette installation area 30 outside the storage box, thereby completing the smoking preparation.

[0081] In this state, the smoker holds the storage box 10 with a hand instead of directly holding the cigarette 2 with a hand, and holds the cigarette filter tip portion protruding outside the cigarette installation area 30 in the mouth to smoke.

[0082] In this way, after smoking, the storage box 10 is placed on the ground or temporarily placed at a placement location and continuous smoking is carried out. When smoking, the ash generated when the cigarette burns does not fall around the smoking place, but is collected in the storage space portion 12 inside the storage box 10.

[0083] On the other hand, in Figure 11 andFigure 12 In an embodiment, when a smoker temporarily places the storage case 10 on the ground or at a placement location, the pusher 60 protruding from the lower part of the storage case 10 compresses the buffer spring 65 and inserts into the recess 15. During this process, the upper end of the pusher rises and falls inside the storage case 10 and flicks the front end of the cigarette 2, so that the cigarette ash is separated and collected inside the storage case 10 just like when a smoker flicks the cigarette ash during smoking.

[0084] In this way, when the smoker finishes smoking the cigarette 2, as described above, by means of the rotational operation of the rod 36, the cigarette fixing plate 37 rotates around the second shaft portion and eliminates the force for pressing and fixing the cigarette inserted into the cigarette insertion hole.

[0085] In this state, when the storage case 10 is tilted or the cigarette is pushed into the storage case, the cigarette butt is discarded into the storage case 10 through the cigarette insertion hole 33.

[0086] In this state, the upper lid 20 is rotated to the upper part of the storage case 10 to be closed and locked again by the locking member 50.

[0087] In this way, when the upper lid is closed, the inside of the storage case 10 is sealed, so that the flame of the cigarette butt discarded in the storage case 10 will be quickly extinguished without a separate extinguishing operation.

[0088] Therefore, the present invention simply installs and uses cigarettes through the cigarette installation area outside the storage case. During smoking, the cigarette ash is collected inside the storage case, and after smoking, the cigarette butt is also inserted into the storage case for discarding. Therefore, it is possible to avoid the contamination of smoking places such as inside a vehicle or indoors by cigarette ash or cigarette butts and use them cleanly. In addition, during smoking, the cigarette is used without hand contact, so it is possible to smoke and use hygienically, thus avoiding the penetration of cigarette smell into the hands.

Claims

1. A cigarette placement device with an ashtray, characterized in that: include: A storage box (10), wherein the storage box (10) has a storage space (12) formed therein for storing cigarette ashes and cigarette butts; An upper cover (20), the upper cover (20) is axially coupled to the upper part of the storage box, is locked or unlocked by a locking member (50), and is automatically opened upward by the elastic force of a spring; and A cigarette installation area (30) is coupled to the outer side of the storage box (10) and inserts the front end (2a) of the cigarette into the storage space (12) through a cigarette insertion hole (33) formed in the center for fixing and installing the cigarette. In the cigarette installation area (30), a circular actuating plate (35) is inserted into a circular housing (31) in a manner that it can rotate within a certain range by means of a rod (36) on one side, and a cigarette insertion hole (33) is formed in the center of the circular housing (31) through the front and back. In front of the circular actuating plate (35), a cigarette fixing plate (37) for blocking the cigarette insertion hole (33) is arranged at an equiangular position, and at the inner and outer sides of each cigarette fixing plate, each cigarette fixing plate (37) is axially coupled to the circular actuating plate and the housing through a first shaft portion (37a) and a second shaft portion (37b), respectively. The housing (31) and the circular actuating plate (35) are arranged in a manner of being elastically connected by a tension spring (38). When the circular actuating plate (35) is elastically rotated by the operation of the lever, the cigarette fixing plate (37) rotates with the second shaft portion as the central axis to open the cigarette insertion hole (33) and allow the cigarette to be inserted. When the circular actuating plate elastically returns, the cigarette fixing plate rotates with the second shaft portion as the central axis to pressurize and fix the cigarette in the cigarette insertion hole. The locking member (50) is composed of a locking groove (51) and a locking actuating area (52). The locking groove (51) is formed on one side of the upper cover (20), and a locking portion (52a) is formed on the locking actuation area (52). The locking portion (52a) vertically protrudes from one side of the upper end of the storage box (10) to be locked to the locking groove (51). When the circular actuating plate is elastically rotated by the operation of the rod, the locking actuating area (52) is unlocked by linkage operation and the upper cover (20) is automatically opened. The locking actuation area (52) is axially arranged in a manner that the center thereof rotates forward and backward, and is elastically supported by an elastic component (53). A circular protrusion (35a) is formed on the circular actuation plate protruding toward the side of the locking actuation area. When the circular actuation plate elastically rotates, the circular protrusion presses the lower part of the locking actuation area (52), and the locking actuation area (52) is locked and released by the axial rotation.

2. The cigarette placement device with an ashtray according to claim 1, characterized in that: The cigarette fixing plates (37) are provided with three equiangular positions on the front side of the circular actuating plate (35) as positions for pressurizing and fixing cigarettes. A circular recess (37c) corresponding to the outer curved surface of the cigarette is formed on the inner side of the cigarette fixing plates (37).

3. The cigarette placement device with an ashtray according to claim 1, characterized in that: A recessed portion (15) is formed at the center of the lower portion of the storage box (10), and a through hole (16) is formed at the upper end of the recessed portion. A push pin (60) is inserted into the recessed portion (15) in a manner elastically supported by a buffer spring (65), and the upper end of the push pin (60) is inserted into the storage space portion through the through hole (16). The lower end of the push pin (60) protrudes downward from the bottom surface of the storage box, and the upper end is supported by a supporting step (61) to prevent it from escaping from the through hole (16). When the storage box is placed on the ground, the push pin elastically rises and falls to bounce off the front end of the cigarette, thereby separating the ash.

Citation Information

Patent Citations

  • Portable cigarette smoke cleaning device

    JP2009261319A

  • Clamping mechanism of pencil sharpener capable of providing a clamping condition of excellent elastic force to ensure an effect of stably clamping the pencil

    TW201800272A