WO2018077314A2 - 伸缩式宠物牵引绳 - Google Patents

伸缩式宠物牵引绳 Download PDF

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Publication number
WO2018077314A2
WO2018077314A2 PCT/CN2017/117742 CN2017117742W WO2018077314A2 WO 2018077314 A2 WO2018077314 A2 WO 2018077314A2 CN 2017117742 W CN2017117742 W CN 2017117742W WO 2018077314 A2 WO2018077314 A2 WO 2018077314A2
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WO
WIPO (PCT)
Prior art keywords
reel
pet
rope
cord
telescopic
Prior art date
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PCT/CN2017/117742
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English (en)
French (fr)
Other versions
WO2018077314A3 (zh
Inventor
朱海元
黄兴根
Original Assignee
苏州佩德漫特工贸有限公司
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Application filed by 苏州佩德漫特工贸有限公司 filed Critical 苏州佩德漫特工贸有限公司
Priority to US15/761,805 priority Critical patent/US11122777B2/en
Publication of WO2018077314A2 publication Critical patent/WO2018077314A2/zh
Publication of WO2018077314A3 publication Critical patent/WO2018077314A3/zh

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K27/00—Leads or collars, e.g. for dogs
    • A01K27/003—Leads, leashes
    • A01K27/004—Retractable leashes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4457—Arrangements of the frame or housing
    • B65H75/4471—Housing enclosing the reel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/48—Automatic re-storing devices

Definitions

  • the invention relates to the field of pet care products, in particular to a telescopic pet leash.
  • Fig. 1 In order to prevent the pet from breaking away, the owner often has a traction rope for the pet.
  • Fig. 1 which both include a casing, a turntable disposed inside the casing, a coil spring connected between the casing and the turntable, and a rope wound around the turntable. band.
  • the front end of the rope is taken out from the rope exit hole on the casing for connecting the pet, and the tail end of the rope is fixedly connected to the loading plate.
  • a handle is formed on the housing. In practice, the owner holds the handle on the housing and the front end of the strap holds the pet.
  • the reel rotates in the positive direction, and the cord wound around the turntable is released outward; when the pet is close to the owner, under the torsional elastic force of the coil spring, the reel rotates in the opposite direction, so that the reel is released. The rope is then wound around the reel.
  • the front end of the cord is attached to the pet and the tail end is attached to the reel.
  • the owner holds the handle on the housing instead of the strap itself.
  • the pulling force of the pet on the rope will act on the connection between the end of the rope and the reel, and the strength of the connection between the end of the rope and the reel is obviously much lower than the resistance of the rope itself. Pulling strength, after long-term use, it is easy to have the problem that the rope and the reel are disconnected. Even if the reliability of the connection between the cord and the reel is enhanced, the reel of the plastic material itself is damaged at the connection point due to the long-term pulling of the cord.
  • the housing is provided with various accessories for releasing and locking the length of the strap, which increases the size and weight of the housing over a certain length, resulting in the pet owner being prone to fatigue during use.
  • the rope can only be retracted or released on the reel by one turn, and when the rope is completely released from the fully collapsed state, the number of turns of the reel is large, and the torsion deformation stroke of the coil spring Also large, in order to ensure the service life of the coil spring, a long coil spring structure must be used, which in turn increases the size and weight of the housing to some extent.
  • the rope can only be retrieved or released on the reel by one turn, and the speed of the rope is slower.
  • the reel does not have time to turn the corresponding number of turns, and it is easy to pull or pull the owner.
  • the reel does not have time to turn the corresponding number of turns, and it is easy to cause the protruding strap to wrap around the surrounding environment (such as trees, street lamps, etc.) and even trip the pet or the owner.
  • the tail end of the rope is fixed on the reel inside the casing.
  • the outer part of the casing only has a handle for the user to hold. The user cannot use the traction rope of this structure to tie the pet to the surrounding environment (such as trees and street lamps). , railings, etc.).
  • the object of the present invention is to provide a telescopic pet leash that has a fast retracting speed, a high structural strength, a small body size, and is convenient to carry and use.
  • a telescopic pet leash comprising a cord, the two ends of the cord are respectively a pet connecting end for connecting a pet and a grip end for the puller, and an elastic rope
  • the rope is wound and wound in the elastic rope reel, and both ends of the rope respectively protrude outside the elastic rope reel.
  • the elastic rope reel includes:
  • a housing having a housing inner cavity and a first cable opening and a second cable opening for communicating the housing inner cavity with the surrounding environment;
  • the cord has a reel fixing portion between the pet connecting end and the grip end and fixedly connected to the reel; with the reel fixing portion as a separation point, the cord is separated a front rope body on a side close to the pet connecting end and a rear rope body on a side close to the grip end; the winding portion of the reel is used as a winding starting point, the front rope portion and the rear rope portion The body is wound on the reel in the same circumferential direction; the pet connecting end and the grip end extend through the first and second rope exit holes respectively to protrude outside the casing.
  • the reel fixing portion of the cord is detachably clamped and fixed to the reel.
  • the length of the arcuate card slot is disposed through the reel, so that two through holes are formed on the outer edge of the reel, the strap
  • the reel fixing portion is snap-fitted in the arcuate card slot.
  • the metal pin has a cylindrical structure and is arranged parallel to the central axis of the turntable.
  • the reel fixing portion of the cord is fixed to the outer edge of the reel.
  • the housing includes left and right shell walls arranged in parallel, and a side shell wall vertically connected between the left shell wall and the right shell wall, the first rope hole and the second rope hole Formed on the side shell wall.
  • the side shell wall is provided with a weight reducing hole.
  • the housing further includes a fixed shaft vertically fixed between the left and right casing walls, the coil spring being coupled between the reel and the fixed shaft.
  • a lock is connected to the pet connecting end of the cord, and a holding hole is formed on the grip end of the cord.
  • a lock is respectively connected to the pet connecting end and the holding end of the cord.
  • the two ends of the cord of the pet leash of the present invention are directly connected to the pet and the user respectively.
  • the pulling force of the cord on the cord is directly transmitted by the cord to the user's hand, only It is necessary to ensure that the structural strength of the cord itself is not pulled off, thereby preventing the pet from escaping from the eyes of the user, and there is no problem that the cord is separated from the casing.
  • the front and rear sections of the rope are wound with the reel.
  • the reel does not rotate one turn, and the rope retracts/exposes the length of two turns.
  • the retracting speed of the rope is twice that of the conventional structure.
  • the holding end of the rope can be directly tied and fixed in the surrounding environment, such as railings, street lamps, etc., liberating the user's hands, convenient for the user to rest on the spot.
  • the traction rope is light and small. When not in use, the end hook can be hung around the waist for easy carrying.
  • 1 is a schematic structural view of a conventional pet leash
  • FIG. 2 is a schematic structural view of a cord in an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of the pet traction rope fully deployed and the casing opened after being carried out according to an embodiment of the present invention
  • FIG. 4 is a schematic structural view of the pet traction rope completely closed and the casing is opened according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an appearance of a pet leash after it is completely folded according to an embodiment of the present invention
  • Figure 6 is a partial structural view of the middle portion (middle portion) of Figure 5;
  • Figure 7 is a schematic structural view of a casing in an embodiment of the present invention.
  • 1-rope belt 1a-pet connecting end, 1b-holding end, 1c-reel fixing part, 1d-front rope body, 1e-rear rope body, 1f-holding hole;
  • FIGS. 2 to 7 show a specific embodiment of the telescopic pet leash of the present invention, which comprises a cord 1 having a flat shape, the two ends of which are respectively connected to the pet connecting end 1a of the pet. And the holding end 1b for the tractor.
  • the pet leash further comprises an elastic reel, the cord 1 is wound and wound in the elastic reel, and both ends of the cord (ie the pet connecting end 1a and the above) The grip end 1b) respectively protrudes out of the elastic reel.
  • the rope 1 In the natural state, by the elastic winding of the elastic rope reel, the rope 1 is wound up in the elastic rope reel and only the two ends thereof are exposed; when the two ends of the rope 1 are pulled, the rope is subjected to the tensile force. And stretched outward.
  • the above elastic rope reel mainly comprises three parts of the casing 2, the reel 3 and the coil spring 4.
  • the housing 2 has a housing inner cavity 2c and a first cable opening 2a and a second cable opening 2b for communicating the housing inner cavity with the surrounding environment.
  • the reel 3 is rotatably disposed in the housing inner chamber 2c of the housing 2.
  • the coil spring 4 is connected between the reel 3 and the casing 2, and when the reel 3 is rotated in the positive direction with respect to the casing 2, the coil spring 4 is twisted and deformed, and a reverse twist is applied to the reel 3 in the opposite direction. Position.
  • the positive and negative directions mentioned here are relative, if one is clockwise and the other is counterclockwise.
  • the cord 1 has a reel fixing portion 1c which is located between the pet connecting end 1a and the grip end 1b and is fixedly coupled to the reel 3. That is, the cord 1 between the pet connecting end 1a and the grip end 1b is partially fixedly attached to the reel 3.
  • the cord 1 is divided into a front rope body 1d on the side close to the pet connecting end 1a and a rear rope body 1e on the side close to the grip end 1b.
  • the front rope body 1d and the rear rope body 1e are wound on the reel 3 in the same circumferential direction (counterclockwise or clockwise).
  • the pet connecting end 1a and the grip end 1b extend through the first and second rope exit holes 2a, 2b, respectively, and project outside the casing 2.
  • the cord 1 When the pet runs away from the distance, the cord 1 is subjected to the pulling force of the pet, the reel is rotated in the positive direction, and the cord 1 wound around the turntable 3 is discharged outward.
  • the front rope body 1d and the rear rope body 1e of the cord 1 are respectively discharged outward from the first rope exit hole 2a and the second rope exit hole 2b, and during this process, the coil spring 4 is twisted and deformed to apply to the reel 3. There is a twisting return force in the opposite direction.
  • the front rope body 1d and the rear rope body 1e of the cord 1 are completely separated from the winding of the reel 3, leaving only the reel fixing portion 1c and the reel 3 on the cord 1.
  • the rope 1 is fully deployed to the maximum extension length, as shown in Figure 3. If the pet continues to move vigorously away from the distance, the pulling force acting on the cord 1 will directly act on the pet owner's hand without exerting a large force on the casing or the turntable. Simply increasing the thickness of the strap allows the strap 1 to have a sufficiently strong tensile strength, thereby ensuring the pet owner's control over the pet, without the problem of the pet pulling off the strap and running away.
  • the reel rotates in the opposite direction, and the discharged string is re-wound on the reel.
  • the fixed connection between the reel fixing portion 1c and the reel 3 on the cord 1 is detachable and snap-fitted, so that the connection point between the cord 1 and the turntable 3 can be adjusted to adjust The length value of the pet connecting end 1a extending out of the housing when the cord is completely closed.
  • the reel 3 is formed with an arcuate card slot 3a, and the length of the arcuate card slot 3a is disposed through the reel 3, so that two through holes are formed on the outer edge of the reel 3 (ie, The ports at both ends of the arcuate card slot 3a are engaged with the reel fixing portion 1c of the cord 1 in the arcuate card slot 3a.
  • the housing 1 and the turntable 3 are made of a lightweight plastic material.
  • the tether 3 is in a tight state as a whole, and the reel fixing portion 1c of the tether 1 is restricted by the arcuate card slot 3a. Bending state. In this way, the reel fixing portion 1c of the cord 1 exerts an upward pressure on the upper side groove wall of the arcuate card slot 3a in FIG. 3, so that the upper side groove wall of the arcuate card slot 3a (for the turntable 3) Part of the plastic material) has the possibility of being "broken" by the rope.
  • the present embodiment is fixed on the turntable 3 with two metal pins 5 respectively disposed at the above two through holes.
  • the cord is in contact with the two metal pins 5, thereby transferring the pressure exerted by the reel fixing portion 1c of the cord 1 on the upper groove wall of the arcuate card slot to the two metal pins 5.
  • the metal pin 5 in this embodiment adopts a cylindrical structure and is arranged parallel to the central axis of the turntable 3.
  • the housing 2 includes a left shell wall 2d and a right shell wall 2e arranged in parallel, and a side shell wall 2f vertically connected between the left shell wall 2d and the right shell wall 2e, the above Both the rope exit hole 2a and the second rope exit hole 2b are formed on the side casing wall 2f.
  • the present embodiment is provided with a plurality of lightening holes (not shown) on the side casing wall 2f.
  • the arrangement of the weight reducing holes increases the housing space of the housing 2 to a certain extent, and also facilitates the user to observe the internal condition of the housing, and also prevents the outer surface of the housing from shrinking.
  • the side wall 2f is divided into a plurality of wall segments distributed in the circumferential direction, as shown in FIG.
  • the housing 2 further includes a fixed shaft 2g vertically fixed between the left and right housing walls 2d, 2e, and the coil spring 4 is coupled between the reel 3 and the fixed shaft 2g.
  • a slot is formed in the middle of the fixed shaft 2g, and one end of the coil spring 4 is fixed in the slot.
  • the outer surface of the left casing wall 2d and the outer surface of the right casing wall 2e are each provided with an elliptical recessed portion at a position corresponding to both end portions of the corresponding fixed shaft 2g, as shown in Fig. 4.
  • the first rope exit hole 2a and the second rope exit hole 2b are symmetrically arranged on both sides of the radial direction of the fixed shaft 2g.
  • a lock 6 is connected to the pet connecting end 1a of the cord 1, and the grip end 1b of the cord 1 is formed. There is a holding hole 1f.
  • a latch 6 can also be connected to the grip end 1b of the strap 1, and the latch 6 cooperates with the cord strap to form the above-mentioned holding hole 1f.
  • the joint can be closed or opened to hold the rope in place like a railing.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Housing For Livestock And Birds (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Electric Cable Arrangement Between Relatively Moving Parts (AREA)
  • Emergency Lowering Means (AREA)

Abstract

本发明公开了一种伸缩式宠物牵引绳，其包括绳带，该绳带的两端分别为用于连接宠物的宠物连接端和供牵引者把持的把持端，还包括弹性卷绳器，所述绳带缠绕收卷在该弹性卷绳器内，并且绳带的两端分别伸出该弹性卷绳器外。本发明这种宠物牵引绳具有收放速度快、结构强度高、体型轻小、方便携带的特点。

Description

伸缩式宠物牵引绳 技术领域
本发明涉及宠物护理用品领域，具体涉及一种伸缩式宠物牵引绳。
背景技术
为了防止宠物走散，主人常常为宠物配置有牵引绳。目前，市场上出售的宠物牵引绳的结构大多如图1所示，其都包括壳体、设置在壳体内的转盘、连接在壳体和转盘之间的卷簧、以及盘绕在转盘上的绳带。其中，绳带的前端从壳体上的出绳孔引出以用于连接宠物，绳带的尾端则固定连接在装盘上。壳体上成型有把手。实际应用时，主人握持住壳体上的把手，绳带的前端栓住宠物。当宠物跑开时，卷盘正方向转动，盘绕在转盘上的绳带向外放出；当宠物靠近主人时，在卷簧的扭转弹力作用下，卷盘反向转动，而使的被放出的绳带再缠绕在卷盘上。
这种结构的宠物牵引绳存在以下缺点：
1、绳带的前端连接在宠物上，而尾端连接在卷盘上。在使用时，主人握持的是壳体上的把手而非绳带本身。当绳带被全部扯出后，宠物对绳带的拉力会作用在绳带尾端与卷盘的连接处，而绳带尾端与卷盘的连接强度显然远远低于绳带本身的抗拉强度，长久使用后，容易出现绳带与卷盘连接处脱开的问题。即便加强绳带与卷盘的连接可靠性，但是塑料材质的卷盘自身也会因受到绳带的长期拉扯而在连接点位置发生破损。
2、壳体上设置有各种用于放开和锁定绳带长度的附件，这在一定长度上增大了壳体的体型和重量，导致宠物主人在使用时容易疲劳。
3、绳带在卷盘上只能被一圈一圈地收回或放出，当绳带从完全收拢状态引出而成完全放出状态时，卷盘转动的圈数很大，卷簧的扭转变形行程也较大，为了保证卷簧的使用寿命，而必须采用长尺寸的卷簧结构，这又在一定程度上 增大了壳体的体型和重量。
4、绳带在卷盘上只能被一圈一圈地收回或放出，收放绳带的速度较慢。当宠物快速跑开时，卷盘来不及转动相应的圈数，而容易拉伤或拉摔主人。当宠物快速跑回时，卷盘也来不及转动相应的圈数，而容易导致伸出的绳带缠绕在周围环境(如树木、路灯等)，甚至绊倒宠物或主人。
5、绳带的尾端固定在位于壳体内部的卷盘上，壳体外部仅有把手供使用者把持，使用者无法利用这种结构的牵引绳将宠物栓在周围环境(如树木、路灯、栏杆等)中。
发明内容
本发明目的是：针对上述问题，提供一种收放速度快、结构强度高、体型轻小、方便携带使用的伸缩式宠物牵引绳。
本发明的技术方案是：一种伸缩式宠物牵引绳，包括绳带，该绳带的两端分别为用于连接宠物的宠物连接端和供牵引者把持的把持端，还包括一弹性卷绳器，所述绳带缠绕收卷在该弹性卷绳器内，并且绳带的两端分别伸出该弹性卷绳器外。
本发明在上述技术方案的基础上，还包括以下优选方案：
所述弹性卷绳器包括：
壳体，其具有壳体内腔以及使该壳体内腔与周围环境相连通的第一出绳孔和第二出绳孔；
卷盘，其旋转设置于所述壳体的所述壳体内腔中；以及
卷簧，其连接在所述卷盘和所述壳体之间，当所述卷盘相对于所述壳体正方向转动时，该卷簧产生扭转变形而对所述卷盘施加有反方向的扭转回位力；
所述绳带具有位于所述宠物连接端和所述把持端之间的、且与所述卷盘固定连接的卷盘固定部；以该卷盘固定部为分隔点，所述绳带被分隔为靠近所述 宠物连接端那一侧的前段绳体和靠近所述把持端那一侧的后段绳体；以所述卷盘固定部为缠绕起始点，所述前段绳体和后段绳体沿着同一圆周方向缠绕在所述卷盘上；所述宠物连接端和所述把持端分别穿过所述第一出绳孔和第二出绳孔而伸出所述壳体外部。
所述绳带的卷盘固定部可拆卸地卡嵌固定在所述卷盘上。
所述卷盘上成型有一条弧形卡槽，该弧形卡槽的长度贯通所述卷盘设置、从而在所述卷盘的外缘边上形成有两个的贯通口，所述绳带的卷盘固定部卡嵌固定在所述弧形卡槽内。
所述转盘上固定有分别布置在所述两个贯通口处的两个金属销。
所述金属销为圆柱形结构，且平行于所述转盘的中轴线布置。
所述绳带的卷盘固定部固定在所述卷盘的外缘边上。
所述壳体包括平行布置的左壳壁和右壳壁、垂直环绕连接在所述左壳壁和右壳壁之间的侧壳壁，所述第一出绳孔和第二出绳孔均形成于所述侧壳壁上。
所述侧壳壁上开设有减重孔。
所述壳体还包括垂直固定在所述左壳壁和右壳壁之间的固定轴，所述卷簧连接在所述卷盘和所述固定轴之间。
所述绳带的所述宠物连接端上连接有一个锁扣，所述绳带的所述把持端上形成有把持孔。
所述绳带的所述宠物连接端和所述把持端上均分别连接有一个锁扣。
本发明的优点是：
1、本发明这种宠物牵引绳的绳带两端分别直接连接宠物和使用者，当该牵引绳完全伸展开后，宠物对绳带的拉扯力由绳带直接传递至使用者手部，只需保证绳带自身的结构强度使其不会被拉断，便可防止宠物从使用者眼下逃离的问题，不存在绳带与壳体脱开的问题。
2、绳带的前后两段均与卷盘缠绕配合，卷盘没转动一圈，绳带便缩回/伸出两圈的长度，绳带的收放速度是传统结构的两倍。
3、由于宠物直接通过一根绳带与使用者连接，使用者对宠物的掌控力仅依附于绳带自身的结构强度，而对壳体的结构强度无强化要求，故壳体的体型和质量可以做的很小，方便使用。
4、绳带的把持端可直接捆扎固定在周围环境中，如栏杆、路灯等，解放了使用者的双手，方便使用者就地休息。
5、当宠物靠近使用者时，在卷簧的回位扭转力作用下，伸出的绳带会立即收卷至壳体内，而保证露在外部的绳带处于大致绷直的状态，避免宠物啃咬绳带造成绳带断裂。
6、该牵引绳体型轻小，不使用时，可将端部的挂钩挂在腰间，携带方便。
附图说明
下面结合附图及实施例对本发明作进一步描述：
图1为本传统宠物牵引绳的结构示意图；
图2为本发明实施例中绳带的结构示意图；
图3为本发明实施例中宠物牵引绳完全展开且壳体被打开后的结构示意图；
图4为本发明实施例中宠物牵引绳完全收拢且壳体被打开后的结构示意图；
图5为本发明实施例中宠物牵引绳完全收拢后的外观结构示意图；
图6为图5的局部(中间部分)结构示意图；
图7本发明实施例中壳体的结构示意图；
其中：1-绳带，1a-宠物连接端，1b-把持端，1c-卷盘固定部，1d-前段绳体，1e-后段绳体，1f-把持孔；
2-壳体，2a-第一出绳孔，2b-第二出绳孔，2c-壳体内腔，2d-左壳壁，2e-右壳壁，2f-侧壳壁，2g-固定轴；
3-卷盘，3a-弧形卡槽；
4-卷簧；
5-金属销；
6-锁扣。
具体实施方式
图2～图7出示了本发明这种伸缩式宠物牵引绳的一个具体实施例，其包括包括扁平形状的绳带1，该绳带1的两端分别为用于连接宠物的宠物连接端1a和供牵引者把持的把持端1b。
本实施例的关键改进在于该宠物牵引绳还包括一弹性卷绳器，所述绳带1缠绕收卷在该弹性卷绳器内，并且绳带的两端(即上述的宠物连接端1a和把持端1b)分别伸出该弹性卷绳器外。自然状态下，受弹性卷绳器的弹性收卷作用，绳带1被收卷于弹性卷绳器内而仅露出其两端；拉动绳带1的两端时，绳带受拉伸力作用而向外伸长。
上述弹性卷绳器主要包括壳体2、卷盘3和卷簧4三大部分。其中，壳体2具有壳体内腔2c以及使该壳体内腔与周围环境相连通的第一出绳孔2a和第二出绳孔2b。卷盘3旋转设置于壳体2的壳体内腔2c中。卷簧4连接在卷盘3和壳体2之间，当卷盘3相对于壳体2正方向转动时，该卷簧4产生扭转变形而对所述卷盘3施加有反方向的扭转回位力。这里所说的正方向和反方向是相对而言的，若一个为顺时针方向，另一个则为逆时针方向。
所述绳带1具有位于宠物连接端1a和把持端1b之间的、且与卷盘3固定连接的卷盘固定部1c。也即处于宠物连接端1a和把持端1b之间的绳带1，其一部分固定连接在卷盘3上。
以上述卷盘固定部1c为分隔点，绳带1被分隔为靠近宠物连接端1a那一侧的前段绳体1d和靠近把持端1b那一侧的后段绳体1e。
以上述卷盘固定部1c为缠绕起始点，前段绳体1d和后段绳体1e沿着同一圆周方向(逆时针或顺时针)缠绕在卷盘3上。宠物连接端1a和把持端1b分别穿过所述第一出绳孔2a和第二出绳孔2b而伸出壳体2外部。
如图4和图5，自然状态下，受卷簧4的弹力作用，绳带1的前段绳体1d和后段绳体1e沿着同一圆周方向缠绕在卷盘3上，绳带1处于完全收拢状态，宠物连接端1a和把持端1b分别经第一出绳孔2a和第二出绳孔2b向壳体外部引出。在实际应用时，宠物主人握持住绳带1长度后侧的把持端1b，绳带1长度前侧的宠物连接端1a栓住宠物。当宠物向远处跑开时，绳带1受到宠物的拉扯力，卷盘正方向转动，盘绕在转盘3上的绳带1向外放出。绳带1的前段绳体1d和后段绳体1e分别由第一出绳孔2a和第二出绳孔2b向外放出，在此过程中，卷簧4发生扭转变形而对卷盘3施加有反方向的扭转回位力。当宠物跑开的距离足够远时，绳带1的前段绳体1d和后段绳体1e完全脱离于卷盘3的缠绕，仅留下绳带1上的卷盘固定部1c与卷盘3连接在一起，此时绳带1完全展开达到最大伸展长度，如图3。若宠物继续向远处大力跑动，其作用在绳带1上的拉扯力将直接作用于宠物主人的手部，而不会对壳体或转盘施加较大的作用力。只需增大绳带的厚度便能使绳带1自身具有足够强的抗拉强度，从而保证宠物主人对宠物的掌控力，不会出现宠物扯掉绳带而跑开的问题。当宠物靠近主人时，在卷簧的扭转弹力作用下，卷盘反向转动，而使的被放出的绳带再缠绕在卷盘上。
本实施例中，所述绳带1上的卷盘固定部1c与卷盘3间的固定连接方式为可拆卸卡嵌连接，这样就可以调整绳带1与转盘3的连接点，以调节再绳带完全收拢状态下宠物连接端1a伸出壳体的长度值。具体地：卷盘3上成型有一条弧形卡槽3a，该弧形卡槽3a的长度贯通卷盘3设置，从而在卷盘3的外缘边上形成有两个的贯通口(也即弧形卡槽3a的两端的端口)，绳带1的卷盘固定部1c卡嵌固定在该弧形卡槽3a内。
为了减轻该设备的重量，壳体1和转盘3均采用轻质塑料材质。如图3，当宠物向外跑出而使绳带1外完全伸展开后，绳带3整体处于绷紧状态，而绳带1的卷盘固定部1c受弧形卡槽3a的限制而处于弯曲状态。这样一来，绳带1的卷盘固定部1c就会对图3中弧形卡槽3a的上侧槽壁施加向上的压力，而使得弧形卡槽3a的上侧槽壁(为转盘3的一部分，塑料材质)具有被绳带“扯破”的可能。
为了避免弧形卡槽3a的上侧槽壁被绳带“扯破”，本实施例在转盘3上固定有分别布置在上述两个贯通口处的两个金属销5。绳带与这两个金属销5接触，从而将绳带1上卷盘固定部1c对弧形卡槽上侧槽壁施加的压力转移到这两个金属销5上。为了降低绳带3在收放过程中与金属销5的滑动摩擦力，本实施例中的金属销5采用圆柱形结构，并且平行于所述转盘3的中轴线布置。
当然，我们也可以不必设置上述弧形卡槽3a的结构，而将绳带1的卷盘固定部1c直接固定在所述卷盘3的外缘边上，也就不再存在弧形卡槽3a的上侧槽壁被绳带“扯破”的问题了。
本实施例中，所述壳体2包括平行布置的左壳壁2d和右壳壁2e、以及垂直环绕连接在所述左壳壁2d和右壳壁2e之间的侧壳壁2f，上述第一出绳孔2a和第二出绳孔2b均形成于侧壳壁2f上。
为了进一步减小壳体的自重，本实施例在所述侧壳壁2f上设置有多个减重孔(图中未标注)。而且减重孔的设置，在一定程度上增大了壳体2的收容空间，同时也方便使用者观察壳体的内部情况，此外也能够防止壳体外表面缩水。设置减重孔后，所述侧壳壁2f的被分割成沿周向间隔分布的多个壁段，如图5。
所述壳体2还包括垂直固定在左壳壁2d和右壳壁2e之间的固定轴2g，所述卷簧4连接在卷盘3和该固定轴2g之间。固定轴2g的中部开设一字槽，卷簧4的一端固定在该一字槽中。
在对应上述对应固定轴2g的两端部位置，所述左壳壁2d的外表面和右壳 壁2e的外表面的各设有一椭圆形的凹陷区，如图4。
本实施中，所述第一出绳孔2a和第二出绳孔2b对称布置在所述固定轴2g的径向两侧。
为了方便该绳带与宠物的连接，同时方便宠物主人对绳带的握持，本实施例在绳带1的宠物连接端1a上连接有一个锁扣6，绳带1的把持端1b上形成有把持孔1f。
为了方便使用者将该绳带固定在栏杆等物体上，也可以在绳带1的把持端1b连接一个锁扣6，该锁扣6与绳带带体配合而形成上述的把持孔1f，二者连接处可以闭合也可以打开，以便将绳待在类似栏杆处固定。
当然，上述实施例只为说明本发明的技术构思及特点，其目的在于让人们能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明主要技术方案的精神实质所做的等效变换或修饰，都应涵盖在本发明的保护范围之内。

Claims (12)

  1. 一种伸缩式宠物牵引绳，包括绳带(1)，该绳带(1)的两端分别为用于连接宠物的宠物连接端(1a)和供牵引者把持的把持端(1b)，其特征在于，还包括一弹性卷绳器，所述绳带(1)缠绕收卷在该弹性卷绳器内，并且绳带(1)的两端分别伸出该弹性卷绳器外。
  2. 根据权利要求1所述的伸缩式宠物牵引绳，其特征在于，所述弹性卷绳器包括：
    壳体(2)，其具有壳体内腔(2c)以及使该壳体内腔与周围环境相连通的第一出绳孔(2a)和第二出绳孔(2b)；
    卷盘(3)，其旋转设置于所述壳体(2)的所述壳体内腔(2c)中；以及
    卷簧(4)，其连接在所述卷盘(3)和所述壳体(2)之间，当所述卷盘(3)相对于所述壳体(2)正方向转动时，该卷簧(4)产生扭转变形而对所述卷盘(3)施加有反方向的扭转回位力；
    所述绳带(1)具有位于所述宠物连接端(1a)和所述把持端(1b)之间的、且与所述卷盘(3)固定连接的卷盘固定部(1c)；以该卷盘固定部(1c)为分隔点，所述绳带(1)被分隔为靠近所述宠物连接端(1a)那一侧的前段绳体(1d)和靠近所述把持端(1b)那一侧的后段绳体(1e)；以所述卷盘固定部(1c)为缠绕起始点，所述前段绳体(1d)和后段绳体(1e)沿着同一圆周方向缠绕在所述卷盘(3)上；所述宠物连接端(1a)和所述把持端(1b)分别穿过所述第一出绳孔(2a)和第二出绳孔(2b)而伸出所述壳体(2)外部。
  3. 根据权利要求2所述的伸缩式宠物牵引绳，其特征在于，所述绳带(1)的卷盘固定部(1c)可拆卸地卡嵌固定在所述卷盘(3)上。
  4. 根据权利要求3所述的伸缩式宠物牵引绳，其特征在于，所述卷盘(3)上成型有一条弧形卡槽(3a)，该弧形卡槽(3a)的长度贯通所述卷盘(3)设置、从而在所述卷盘(3)的外缘边上形成有两个的贯通口，所述绳带(1)的卷盘固定部(1c)卡嵌固定在所述弧形卡槽(3a)内。
  5. 根据权利要求4所述的伸缩式宠物牵引绳，其特征在于，所述转盘(3)上固定有分别布置在所述两个贯通口处的两个金属销(5)。
  6. 根据权利要求5所述的伸缩式宠物牵引绳，其特征在于，所述金属销(5)为圆柱形结构，且平行于所述转盘(3)的中轴线布置。
  7. 根据权利要求2所述的伸缩式宠物牵引绳，其特征在于，所述绳带(1)的卷盘固定部(1c)固定在所述卷盘(3)的外缘边上。
  8. 根据权利要求2所述的伸缩式宠物牵引绳，其特征在于，所述壳体(2)包括平行布置的左壳壁(2d)和右壳壁(2e)、垂直环绕连接在所述左壳壁(2d)和右壳壁(2e)之间的侧壳壁(2f)，所述第一出绳孔(2a)和第二出绳孔(2b)均形成于所述侧壳壁(2f)上。
  9. 根据权利要求8所述的伸缩式宠物牵引绳，其特征在于，所述侧壳壁(2f)上开设有减重孔。
  10. 根据权利要求8所述的伸缩式宠物牵引绳，其特征在于，所述壳体(2)还包括垂直固定在所述左壳壁(2d)和右壳壁(2e)之间的固定轴(2g)，所述卷簧(4)连接在所述卷盘(3)和所述固定轴(2g)之间。
  11. 根据权利要求2所述的伸缩式宠物牵引绳，其特征在于，所述绳带(1)的所述宠物连接端(1a)上连接有一个锁扣(6)，所述绳带(1)的所述把持端(1b)上形成有把持孔(1f)。
  12. 根据权利要求2所述的伸缩式宠物牵引绳，其特征在于，所述绳带(1)的所述宠物连接端(1a)和所述把持端(1b)上均分别连接有一个锁扣(6)。
PCT/CN2017/117742 2016-10-24 2017-12-21 伸缩式宠物牵引绳 WO2018077314A2 (zh)

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CN106417074B (zh) * 2016-10-24 2022-09-27 苏州佩德漫特工贸有限公司 伸缩式宠物牵引绳
CN206182083U (zh) * 2016-10-24 2017-05-24 苏州佩德漫特工贸有限公司 伸缩式宠物牵引绳

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CN106417074A (zh) 2017-02-22
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CN106417074B (zh) 2022-09-27

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