CN1047298C

CN1047298C - Chopsticks

Info

Publication number: CN1047298C
Application number: CN94115970A
Authority: CN
Inventors: 柴田伊势雄
Original assignee: Acta Corp
Current assignee: Acta Corp
Priority date: 1994-07-08
Filing date: 1994-07-08
Publication date: 1999-12-15
Anticipated expiration: 2014-07-08
Also published as: CN1114548A

Abstract

The present invention relates to a pair of chopsticks. Each chopstick has a sheath made of synthetic resin and a food holding device made of wood or bamboo, wherein the food holding device is longer than the sheath. At least two projected parts are arranged on the internal surface near the front end of the sheath, and the space between the projected parts is less than the diameter of the inner end part of the food holding device. The sheath has at least one projected wall on the inward internal surfaces of the projected parts so as to make the internal diameter of the sheath slightly less than the diameter of the food holding device. The food holding device has a thread groove in the inner end part. When the food holding device is positioned in the pulling position, the projected parts are engaged with the thread groove.

Description

Chopsticks

The present invention relates to chopsticks, this chopsticks can be packed in the container of the noodles that a common lunch box, be equipped with cooked easily, or the like, and can carry, can use repeatedly.

The telescopic chopstick that is used to press from both sides food has been well-known, and every chopsticks all contain clamping device of being made by natural fiber material (as wood or bamboo) and the cover of being made by synthetic resin that is used to deposit clamping device.Clamping device can skid off from cover, and can shrink and go back.At the outer surface of clamping device inner end with near on the inner surface of cover openend many ring shaped threads and groove are arranged, they cooperatively interact, and are in convenient clamping device to be fixed on the cover when pulling out state.

For the ease of carrying and collecting, known chopsticks can shrink, and it can be stretched to the length of common chopsticks in the time will using.Because being used for the clamping device of holding food is to be made by the natural fiber material that resembles wood or bamboo and so on, therefore, when people wanted to press from both sides food, the user of chopsticks can not feel to have any uncomfortable.This chopsticks can use repeatedly.Because they are not easy to appear at any the slipping out that might take place when using plastic chopstick, so can press from both sides noodles with them.Telescopic chopstick also can reduce wooden consumption, because clamping device is shorter than common chopsticks.

Yet known chopsticks use not too easily than common chopsticks simple or monolithic construction.Because the clamping device of each chopsticks is not fixed firmly on the cover, all be inevitable with respect to the activity slightly of cover.Therefore, known chopsticks lack robustness and stability in use.

Japan Patent 04215712A discloses a kind of telescopic chopstick, and it comprises clamping device and cover of being made by synthetic resin of being made up of wooden and bamboo.When clamping device was in cover, cover was stretched out on the top of clamping device.Clamping device is extracted out from cover when using, and by the ring limit on the clamping device essential part being engaged to the inner surface of cover open top end, the essential part of clamping device and the open top end of cover link mutually.But the engagement of clamping device and cover and instability cause the user to feel under the weather in use.

The objective of the invention is to provide a kind of follow-on telescopic chopstick, improved the mesh component of clamping device and cover, clamping device is made up of wooden and bamboo, and this chopsticks are firm and stable in use, and as the easy use of common chopsticks.

Reach purpose of the present invention by such a pair of chopsticks, each root in this chopsticks all includes one and is made by synthetic resin, cover and a clamping device of having a front opening, said clamping device is contained in the said cover, slide between the retracted position of clamping device and extended position by described front opening, said clamping device is longer than said cover, it is characterized in that, this cover is having two relative projecting parts and the interval between them at least less than the diameter at the clamping device tail end near on the inner surface of described front opening, described cover also has an outstanding wall at least on the inner surface inside from above-mentioned projecting part, make the internal diameter of cover be slightly smaller than the diameter of described clamping device, and described clamping device is made by natural fiber material, a groove is arranged on the outer surface of its tail end, when clamping device was in said extended position, described groove can mesh with described projecting part.

The compressibility that constitutes the natural fiber material of clamping device has been guaranteed when clamping device is stretched to the degree that can use of chopsticks with the flexibility and the plasticity of the synthetic resin that constitutes cover, it can be securely fixed on the stretch position, and without any rocking with respect to the unwanted of cover, so that chopsticks of the present invention can be as the easy use of any common chopsticks.

Cover is in it and can be circular, tetragonal on the cross section of outer surface or other is polygonal, and perhaps its outer surface can have different cross sections with inner surface.The clamping device that is used for holding food can have the cross section of any different shape similarly, to the greatest extent let it be diameter or thickness should be become relatively towards the inner end greatly with towards the outer end of chopsticks contacting foodstuff and relative diminishing.

The tail end of cover has an opening, with a lid it is covered allowing clamping device insert the back, so that chopsticks can have the shape an of the best during use.In addition, an axially outstanding wall is outwards arranged,, and when clamping device pulls out, support it so that be meshed with the outer surface of clamping device from projecting part.

Like this, chopsticks of the present invention have many advantages, are summarized as follows:

Be easy to carry when (1) this chopsticks are in contraction state, and just can use as common chopsticks by from cover, extracting clamping device simply out.

(2) projecting part and the outstanding wall on every chopsticks inner surface provides firm and stable support for clamping device, to avoid producing any unnecessary rocking with respect to cover when clamping device is positioned at stretch position, even use chopsticks repeatedly.In addition, the axially outstanding wall of cover has further been strengthened this support; With

(3) chopsticks can shorten the length of any needs into when shortening, with in the container that adapts to the noodles that can pack lunch box into and be equipped with cooked etc.

By following description and accompanying drawing, can more clearly understand these and other feature and advantage of the present invention.

Fig. 1 is that expression is implemented chopsticks of the present invention at two locational side views;

Fig. 2 be the expression clamping device amplification, perspective view that part has been saved;

Fig. 3 be expression cover fore-end amplification profilograph;

Fig. 4 is the end-view of getting among Fig. 3 along the A-A line;

Fig. 5 is a drawing in side sectional elevation of getting B-B along the line among Fig. 3;

Fig. 6 is the partial enlarged drawing of the chopsticks that one of are illustrated in two positions shown in Figure 1, and it has represented how clamping device is locked by cover;

Fig. 7 is illustrated in the partial longitudinal section of implementing the cover in another chopsticks of the present invention;

Fig. 8 is an end-view of getting C-C along the line among Fig. 7;

Fig. 9 is a drawing in side sectional elevation of getting D-D along the line among Fig. 7;

Figure 10 is that side view cuts open in the office of the clamping device that is locked by chopsticks cover shown in Figure 7 of expression.

Implement one of a pair of chopsticks of the present invention as shown in Figure 1, it includes cover 1 and clamping device 2.Shown clamping device 2 is in two positions, and the punctured position that promptly inserts in the cover 1 dots, and the extended position of extracting out from cover is represented with solid line.

Cover 1 is made by synthetic resin, and axocoel 3 is arranged.After clamping device 2 inserts in the cover 1, an opening 5 that covers with lid 4 is arranged in the rear end of cover 1.Cover 1 is shorter a little than clamping device 2, even so that clamping device 2 can have when the punctured position shown in the dotted line from the outstanding leading section 6 of the front end of cover 1, and can also from cover 1 clamping device be extracted out at an easy rate like this.

Although the cover shown in the figure 1 and clamping device 2 both, all be circular, they can have the cross section of different shape.Outer surface along cover 1 should be octagon or hexagonal cross section, so that non skid matting to be provided.Eat the chopsticks that rice is used, clamping device 2 is circular cross section preferably, and the chopsticks of eating noodles octagonal cross-section preferably, so that noodles can not slide from chopsticks.

When using chopsticks, the jag of clamping device 2 is pulled out from cover 1, clamping device 2 firmly on cover 1, just look like both are chopsticks.

Fig. 2 has represented to accompanying drawing shown in Figure 6 clamping device 2 is how to be clipped in the cover 1.As shown in Figure 2, clamping device 2 has a thread groove 8 at its tail end 7.As shown in Figure 1, cover 1 has an opening that allows clamping device 2 outwards give prominence at its front end.Shown in Fig. 3 or 4, on the inner face of the close front end of cover 1, two radially relative projecting parts 9 are arranged.Yet the quantity of projecting part 9 is not limited to two, and for example, if each is radially relative mutually to projecting part, it can be two pairs.

If clamping device 2 is pulled out by shown in Figure 1, so, projecting part 9 will be by thread groove 8 engagements shown in Figure 6 and clamping device 2, and like this, clamping device 2 will be fixed on its pull-out location.Littler than clamping device 2 between the projecting part 9 at the diameter D of tail end 7 apart from d1, and thread groove 8 has enough degree of depth so that projecting part 9 is clipped in wherein just.In this connection, if cover 1 have many to or cover projecting part 9 be meshed with many thread grooves 8 on the clamping device 2 respectively, can also obtain better effect.After chopsticks use up, clamping device 2 can be recovered in the cover 1.Cover 1 is made by soft synthetic resin, and clamping device 2 perhaps can provide the similar material of easy finished surface to make by wood.Even so often use and regain clamping device 2 repeatedly, the secure fit of also survivable clamping device 2 and cover 1.

Shown in Fig. 3 to 5, cover 1 inwardly or to the rear surface has two pairs of radially outstanding relatively walls 10 projecting part 9.To little, they can not produce very big resistance to it to the cross section of one of two pairs of outstanding walls 10 when pulling out with convenient clamping device 2 than another.As shown in Figure 5, four outstanding walls 10 are equally spaced mutually along the periphery of cover 1.Each is d2 to outstanding wall 10 radial spacings, it equals or is slightly smaller than the diameter D of clamping device 2 at its tail end 7, so that they can be enclosed within on the outer surface of clamping device 2 tail ends 7 tightly, make and clamping device 2 is being pulled out unnecessary the shaking of Shi Buhui generation from cover 1.Have many overhangs 10 although cover 1 has been described as,, it also may make the single outstanding wall around the whole outer surface of clamping device 2.Described axially outstanding wall 10 is radially curving inwardly a little, and axially outwardly-bent at the described front end of described cover.

When clamping device 2 was pulled out from cover 1, the projecting part 9 of cover 1 just was meshed with the thread groove 8 of clamping device 2, and the outstanding wall 10 of cover 1 rocks to prevent it just along entangling clamping device 2 on its four edges of whole length of tail end 7.Therefore, clearly, chopsticks of the present invention can use easily as any common chopsticks.

Further, this chopsticks can further comprise a unshowned cap, cover when chopsticks are positioned at retrieving position on the leading section 6 of clamping device 2, so that keep clean when reusing.

See the enforcement another kind of chopsticks of the present invention of Fig. 7 to 10 expression again.It contains cover 20, and this cover is made a pair of radially relative projecting part 9 on the inside inner surface of its front opening, and forms a pair of radially relative outstanding wall 22 on the inwardly or backward inner surface of projecting part 9, shown in Fig. 7 and 9.Distance between the outstanding wall 22 is d2, and it equals or be slightly smaller than the diameter D of clamping device 2 tail ends 7.

Cover 20 also has one from the axially outstanding wall 21 of projecting part 9 to extension, and it stops in the forward open end of cover 20.Axially outstanding wall 21 meshes with the outer surface of the tail end 7 of clamping device 2, supports clamping device 2 when extracting out 20 from overlapping with convenient clamping device 2.Axially outstanding wall 21 is somewhat radially at the front end that overlaps 20 and curves inwardly, and interior diameter is d3, and it is slightly smaller than the diameter D of the tail end 7 of clamping device 2 at the front end of cover 20.When clamping device 2 had been extracted out, this axially outstanding wall 21 was out of shape so that strengthened support for clamping device 2 provides through resilient radial.Its total inner surface is meshed with clamping device 2, has been in the position engaged by the thread groove and the outstanding wall 22 of projecting part 9 and clamping device 2, as shown in figure 10.Because axially outstanding wall 21 entangles clamping device 2 tightly at the front end of cover 20, therefore, this also helps avoid any dust and enters in the cover 20, thereby can keep its cleaning inside.

The further feature of this chopsticks and the front feature of 1 to 6 described chopsticks in conjunction with the accompanying drawings are identical.Therefore, for further feature, whether they appear among Fig. 7 to 10 all can be described with reference to the front.

Claims

1. a pair of chopsticks, each chopsticks includes one and is made by synthetic resin, cover and a clamping device of having a front opening, said clamping device is contained in the said cover, slide between the retracted position of clamping device and extended position by described front opening, said clamping device is longer than said cover, it is characterized in that, this cover is having two relative projecting parts and the interval between them at least less than the diameter at the clamping device tail end near on the inner surface of described front opening, described cover also has an outstanding wall at least on the inner surface inside from above-mentioned projecting part, make the internal diameter of cover be slightly smaller than the diameter of described clamping device, and described clamping device is made by natural fiber material, a groove is arranged on the outer surface of its tail end, when clamping device was in said extended position, described groove can mesh with described projecting part.

2. according to the described chopsticks of claim 1, it is characterized in that, described cover outwards also forms an axially outstanding wall and the described front opening termination of axially giving prominence to wall at described cover at described projecting part, being meshed, thereby when being in described pull-out location, supports by described clamping device clamping device with the outer surface of described clamping device.

3. according to claim 1 or 2 described chopsticks, it is characterized in that described natural fiber material is to select from the set of being made of wooden and bamboo.

4. according to the described a pair of chopsticks of claim 2, it is characterized in that described axially outstanding wall is radially curving inwardly a little, and axially outwardly-bent at the described front end of described cover.