WO2016123784A1 - 具有可靠连接的手动工具 - Google Patents

具有可靠连接的手动工具 Download PDF

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Publication number
WO2016123784A1
WO2016123784A1 PCT/CN2015/072368 CN2015072368W WO2016123784A1 WO 2016123784 A1 WO2016123784 A1 WO 2016123784A1 CN 2015072368 W CN2015072368 W CN 2015072368W WO 2016123784 A1 WO2016123784 A1 WO 2016123784A1
Authority
WO
WIPO (PCT)
Prior art keywords
handle
hand tool
hole
reliable connection
impact
Prior art date
Application number
PCT/CN2015/072368
Other languages
English (en)
French (fr)
Inventor
李跃明
Original Assignee
杭州巨星工具有限公司
杭州巨星科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 杭州巨星工具有限公司, 杭州巨星科技股份有限公司 filed Critical 杭州巨星工具有限公司
Priority to CA2975763A priority Critical patent/CA2975763C/en
Priority to EP15880740.4A priority patent/EP3254810B1/en
Priority to US15/548,954 priority patent/US10518401B2/en
Priority to PCT/CN2015/072368 priority patent/WO2016123784A1/zh
Publication of WO2016123784A1 publication Critical patent/WO2016123784A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F1/00—Combination or multi-purpose hand tools
    • B25F1/006—Combination or multi-purpose hand tools with percussion tool-heads or -blades, e.g. hammers, axes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/10—Handle constructions characterised by material or shape
    • B25G1/102—Handle constructions characterised by material or shape the shape being specially adapted to facilitate handling or improve grip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices
    • B25G3/14—Locking and securing devices comprising barbs or teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices
    • B25G3/26—Locking and securing devices comprising nails, screws, bolts, or pins traversing or entering the socket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices
    • B25G3/28—Locking and securing devices comprising wedges, keys, or like expanding means

Definitions

  • the present invention relates to a hand tool, and more particularly to a hand tool with a secure connection.
  • scrapers usually consist of working parts and handles.
  • the invention provides a hand tool with a reliable connection
  • the utility model comprises: a working component having a working end and a handle end opposite to the working end; a handle mounted on the handle end of the working component, having a working component end and an impact component end; an impact component, the impact component mounting On the impact member end of the handle.
  • the portion of the hand tool of the present invention that is connected to the handle end of the working member is a contact surface, and the handle end or the contact surface is provided as a deformable non-rigid contact to achieve a reliable connection of the working member and the impact member.
  • At least one of the contact surface and the handle end is provided in a tooth shape which can be deformed to form a gapless connection with the contact surface.
  • the impact member has a tongue, the tongue has a groove, the groove is for receiving a portion of the handle end, and the closed end of the groove is a contact surface.
  • the hand tool of the present invention having a reliable connection further includes a connecting member for fixing the connecting working member and the striking member.
  • the handle end of the working member has a through hole
  • the tongue of the striking member has a through hole
  • the connecting member is installed in the through hole of the handle end and the through hole of the tongue of the striking member.
  • the axis of the through hole of the handle end has a deviation from the axis of the through hole of the tongue. Under the action of the external force, the axis of the through hole of the handle end is aligned with the axis of the through hole of the tongue due to the deformation of the tooth.
  • the aforementioned connecting member is a pin.
  • the through holes of the tongue of the striking member are two, respectively located on the tongues on both sides of the groove, and have the same axis.
  • the handle end has a raised portion
  • the tongue of the impact member is provided with a through hole that cooperates with the raised portion, and the working member and the striking member are fixedly connected by the raised portion and the through hole.
  • the raised portion is disposed to be coupled to the handle end of the working member at an end proximate the striking member and to the working member at an end facing away from the striking member.
  • the through hole is a square hole, and a portion in contact with the lifted portion is provided as a slope.
  • the hand tool of the present invention having a secure connection has a handle end of the working member provided with a symmetrical extension that abuts against the contact surface of the impact member.
  • extension portion is provided in a single tooth shape or a plurality of tooth shapes.
  • the hand tool with reliable connection of the present invention further includes a riveting member for fixing the connecting handle and the striking member.
  • the striking member end of the handle has a mounting portion having a through hole, the striking member having a through hole, and the riveting member is mounted in the through hole of the mounting portion and the through hole of the striking member.
  • the through hole of the mounting portion and the through hole of the striking member have a deviation, and the axis of the through hole of the mounting portion and the axis of the through hole of the striking member can be aligned due to the deformation of the tooth by an external force.
  • the hand tool with reliable connection of the present invention further includes a sleeve installed in the through hole of the mounting portion and the through hole of the impact member, the riveted member being mounted in the sleeve, the sleeve being configured to withstand the impact member The force of transmission.
  • the riveting member is a rivet or a riveted tube.
  • the hand tool of the present invention having a secure connection has a working part that is a blade.
  • the material of the handle impact member is a metal or a high strength polymer.
  • the hand tool with reliable connection of the present invention achieves a gap-free close fit between the working member and the impact member by deformation between the handle end of the working member and the contact surface of the impact member.
  • Such an arrangement reduces the need for production accuracy of the various components of the hand tool.
  • the contact surface of the impact member is set to a flat surface, the flatness is not good or deviates from the extending direction, and then the tight fit can be achieved by the tooth-shaped deformation of the corresponding handle end surface.
  • the hand tool of the present invention has a reliable connection, which is capable of dispersing the impact force and prolonging the service life of the handle.
  • Figure 1 is a schematic illustration of a preferred embodiment of the doctor blade of the present invention.
  • FIG. 2 is a schematic illustration of the blade of the doctor blade of Figure 1.
  • FIG 3 is a schematic illustration of the impact member of the doctor blade of Figure 1.
  • Figure 4 is a cross-sectional view of the bottom view of the blade of Figure 1.
  • Figure 5 is a cross-sectional view of the front view of the blade impact member of Figure 1 in combination with the blade.
  • Figure 6 is a schematic view of the assembly of the doctor blade of Figure 1.
  • Figure 7 is a schematic illustration of the combination of the blade and the impact member of another preferred embodiment of the doctor blade of the present invention.
  • Figure 8 is a partial cross-sectional view showing a front view of another preferred embodiment of the doctor blade of Figure 7.
  • Figure 9 is a partial cross-sectional view of a bottom view of another preferred embodiment of the doctor blade of Figure 7.
  • Figure 10 is a schematic view showing the assembly of the doctor blade of another preferred embodiment of Figure 7.
  • Figure 11 is a cross-sectional view showing a bottom view of still another preferred embodiment of the doctor blade of the present invention.
  • Figure 12 is a partial cross-sectional view showing a front view of still another preferred embodiment of the doctor blade of Figure 11 .
  • Figure 13 is an assembled view of yet another preferred embodiment of the doctor blade of Figure 11.
  • Figure 1 to Figure 6 It is a preferred embodiment of the hand tool with reliable connection provided by the present invention, wherein the working part is a blade, and the hand tool with a reliable connection is a doctor blade.
  • the scraper includes a blade 1 and a handle 2 and impact parts 3 .
  • the blade is installed in the order of mounting the handle 2 to the blade 1 and then attaching the impact member 3 to the handle 2 and the blade 1. Where the blade 1 runs through the handle 2 .
  • the handle 2 can be formed on the blade 1 by injection molding. Those skilled in the art will appreciate that the manner in which conventional tool handles are formed and installed can be used in the formation of the hand tool handles of the present invention.
  • the blade 1 has a working end 11 and a handle end 12 opposite to the working end 11, and a through hole is formed in the handle end 12. 13.
  • the end of the handle end 12 is the end face 121 of the handle.
  • the end face 121 of the handle is set to be toothed.
  • the striking member 3 includes a tongue 31 extending outward in a symmetrical axial direction, and the tongue 31 is adjacent to the blade 1
  • One end has a recess 32 for receiving a portion of the handle end 12 of the blade 1.
  • On the tongues 31 on both sides of the groove 32 corresponding through holes 33 are provided.
  • Groove 32 The closed end is the contact surface 37.
  • the impact member 3 is mounted on the handle 2 Impact member end 211.
  • the recess 32 of the striking member 3 accommodates a portion of the handle end 12 of the blade 1 such that the through hole 13 in the blade 1 and the through hole 33 on the striking member 3 Align.
  • the blade 1 and the striking member 3 are integrally connected by a pin 4 mounted in the through hole 13 and the through hole 33.
  • the present invention will be the blade 1 and the tapping member 3
  • the contact area is designed to be a deformable, non-rigid contact.
  • the handle end face 121 is designed to be toothed, and the through hole 13 and the impact member on the blade are assembled when the impact member 3 is assembled to the handle 2.
  • the axis of the through hole 33 in the tongue 31 has a deviation, and the axis of the through hole 33 on the striking member 3 is farther from the working end of the blade 1 with respect to the through hole 13 on the blade 1 .
  • the toothed portion is deformed so that the gap between the blade 1 and the impact member 3 is completely lost, as shown in FIG.
  • install the pin 4 to achieve the blade 1, the handle 2 and the impact member 3 A reliable fixed connection between.
  • the blade 1, the handle 2, and the impact member 3 are effectively realized.
  • the reliable connection between them can reduce the processing accuracy requirements of the three.
  • the different shapes of the teeth can be designed according to different materials of different hand tool products to achieve the above reliable connection.
  • the handle 2 includes a handle body 21 and a soft sleeve 22.
  • Impact member end 211 of the handle body 21 The mounting portion 212 has an outwardly extending portion, and the mounting portion 212 has a symmetrical structure distributed on both sides of the handle, and the striking member 3 can accommodate the mounting portion 212 of the handle 2 to reinforce the handle 2 Assembly stability with the impact member 3.
  • the soft sleeve 22 is jacketed on the outside of the handle body 21 such that the handle 2 and the impact member 3 form a flat outer surface.
  • Soft cover 22 The material can be rubber, and the rubber can be patterned to increase the hand grip and increase the slip resistance.
  • the handle body 21 can also be fabricated in other ways and will not be described in detail herein.
  • the striking force is directly transmitted to the blade through the striking member 3.
  • the impact force transmitted to the handle 2 is greatly reduced, thereby reducing the damage of the handle.
  • connection method is a hook connection.
  • the striking member 3 includes a tongue 31 that extends out of the symmetrical axial direction, and the tongue 31 is adjacent to the blade 1
  • One end has a recess 32 for receiving a portion of the handle end 12 of the blade 1.
  • the closed end of the recess 32 is the contact surface 37.
  • Groove 32 A square opening 33 is provided on the tongue on one side. Square opening 33 The edge of the hole near the blade 1 is set to be a bevel with an acute angle to the plane of the groove 32.
  • the handle end 12 of the blade 1 has a raised portion 15 which is adjacent to the end surface of the handle 121 One end is connected to the blade, and one end away from the end surface 121 of the handle is offset from the blade 1.
  • the raised portion 15 is paired with the square opening 33 on the impact member 3.
  • such a connection also has the problems mentioned in the first embodiment, namely the blade 1 and the impact member 3 There is a certain gap between them, and when the tapping member 3 is used for tapping, the force generated by the striking member 3 is directly transmitted through the handle 2 and is not well transmitted to the blade 1.
  • the handle end face 121 of the blade 1 is designed to be toothed, and the impact member 3 is assembled to the handle 2 When it is up, the blade is connected to the impact member 3 by a hook. At this time, there should be a certain gap between the blade 1 and the impact member 3.
  • the blade 1 is made The toothed portion of the end face 121 of the handle is deformed to completely disappear the gap between the blade 1 and the impact member 3, as shown in Fig. 8.
  • the handle 2 includes a handle body 21 and a soft sleeve 22 It is installed in the same manner as the previous preferred embodiment.
  • the soft sleeve 22 is sleeved on the handle body 21, and the surface of the integral handle portion is flat.
  • the handle 2 can also include an upper cover 23 and a lower cover 24 .
  • a pattern may be provided on the upper cover 24 and the lower cover 24 to increase the friction between the user's hand and the handle, or a product identification or the like may be provided.
  • the striking force is directly transmitted to the blade through the striking member 3.
  • the impact force transmitted to the handle 2 is greatly reduced, thereby reducing the damage of the handle.
  • connection method is a riveted pipe connection.
  • the end of the handle end 12 of the blade 1 is U-shaped, U
  • the protruding portion is the extension portion 14.
  • the striker member end 211 of the handle body 21 of the handle 2 has an outwardly extending mounting portion 212.
  • the mounting portion 212 has a through hole 213.
  • the impact member 3 has a cavity 34 that can accommodate the mounting portion 212, and the sides of the cavity 34 are provided with an extension portion of the blade 1 Contact surface 35.
  • a through hole 36 is provided in the impact member.
  • the striking member 3 is mounted to the handle through the cavity 34.
  • the through hole 213 on the mounting portion 212 and the through hole 36 on the striking member 3 are aligned, and the sleeve 51 is fitted into the through hole 213 and the through hole 36 to insert the blade 1.
  • the handle 2 and the impact member 3 are connected together.
  • such a connection also has the problem mentioned in the first embodiment, that is, the extension of the blade 1 14 There is a certain gap between the contact surface 35 of the striking member 3, and when the striking member 3 is used for tapping, the force generated by the striking member 3 is directly transmitted through the handle 2, and is not transmitted to the blade well. On.
  • the extension of the blade 1 14 It is provided in a tooth shape, and the tooth shape may be a single tooth shape or a plurality of tooth shapes.
  • the assembled blade 1 and the handle 2 are assembled with the impact member 3, and at this time, the through hole 213 in the mounting portion 212 of the handle 2
  • the axis is offset from the axis of the through hole 36 in the striking member 3, and the axis of the through hole 213 is closer to the working end 11 of the blade 1 with respect to the axis of the through hole 36.
  • the extension of the blade 1 There should be a certain gap between the contact surface 35 of the impact member 3 and the extension of the blade 1 by applying a force on the striking member 3 and the handle 2.
  • the toothed portion is deformed so that the gap between the extended portion 14 of the blade 1 and the contact portion 35 of the striking member 3 is completely lost, as shown in Fig. 12. Then install the sleeve 51 in the through hole In the 213 and through hole 36, the riveted tube 52 is mounted in the sleeve 51 to achieve a secure fixed connection between the blade 1, the handle 2 and the impact member 3.
  • the different shapes of the teeth can be designed according to different materials of different hand tool products to achieve the above reliable connection.
  • the handle 2 further includes a soft sleeve 22 that is sleeved on the handle body 21. After the assembly is completed, the surface of the handle portion is flat.
  • the sleeve has a certain thickness and strength to withstand the impact force transmitted by the impact member 3.
  • the impact force is transmitted to the sleeve 51 through the impact member 3, and is also directly transmitted to the blade 1, greatly reducing the transfer to the handle 2 The impact force on the upper side, thereby reducing the damage of the handle.
  • a reliable connection between the working part and the striking part cannot be achieved, that is, a certain gap is left between the handle end of the working part and the striking part, so that the impact force of the striking part is not well dispersed to the working part.
  • Upper thus easily damaging the handle.
  • the present invention achieves a gap-free close fit between the working member and the striking member by deformation between the handle end of the working member and the contact surface of the striking member.
  • Such an arrangement reduces the requirements for the production accuracy of the various components of the hand tool, and also reduces the production cost of the component, and facilitates the fine adjustment of the product. Therefore, the hand tool of the present invention has a reliable connection, which is capable of dispersing the impact force and prolonging the service life of the handle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

一种具有可靠连接的手动工具，包括：工作部件（1），该工作部件（1）具有工作端（11）和与工作端（11）相对的手柄端（12）；手柄（2），该手柄（2）安装在工作部件（1）的手柄端（12）上，且具有工作部件端和撞击部件端（211）；撞击部件（3），该撞击部件（3）安装在手柄（2）的撞击部件端（211）上。撞击部件（3）与工作部件（1）的手柄端（12）相连的部分为接触面（37），手柄端（12）或接触面（37）设置为可形变的非刚性接触，实现工作部件（1）和撞击部件（3）的可靠连接。可形变的非刚性接触通过接触面（37）和手柄端（12）中的至少一个设置为齿状实现，该齿状能发生形变从而与接触面（37）形成无间隙连接。通过上述设置，可以降低各部件的生产精度，节约成本，又能达到手动工具的工作部件（1）、撞击部件（3）和手柄（2）的可靠连接，分散撞击力对手柄（2）的损伤。

Description

具有可靠连接的手动工具
技术领域
本发明涉及一种手动工具，尤其涉及一种具有可靠连接的手动工具。
背景技术
普通的手动工具如刮刀、螺丝刀等，通常由工作部件和手柄组成。在前述手动工具的使用过程中，经常需要进行敲击。如使用刮刀刮平墙面时，遇到凸起的钉子，需要将钉子敲入，以保持墙面的平整性。此时，可以利用刮刀进行敲击，方便省时。
常规的手动工具在敲击时，由于直接作用位置为手柄端部，容易造成手柄的损伤。一些手动工具在手柄端部安装有敲击部件，如 CN200780031592.1 中记载的墙板刮刀，其敲击部件仅与手柄直接相连，撞击力从敲击部件直接传递到手柄上，仍然会对手柄产生损害。
另外，有一些带撞击部件的手动工具，其工作部件，如刀片等也会直接与撞击部件接触。但是，由于安装过程中存在许多位置限定部分，比如撞击部件边缘与手柄端的配合、安装孔之间的配合等，导致工作部件与撞击部件之间的吻合程度降低，使得工作部件与撞击部件之间的连接不牢固。虽然，可以通过提高各个零件的生产精度达到各个零件的精准配合，但是，这样无疑增大了生产成本。当工作部件与撞击部件之间的连接不牢固时，撞击部件受到的撞击力仍然传递到手柄上，对手柄产生损伤。
综上，普通的手动工具，如普通的刮刀、螺丝刀等，由于部件之间的连接不牢固可靠，在进行敲击时，撞击力大多传递到手柄上，容易对手柄造成损伤。
发明内容
本发明提供了一种具有可靠连接的手动工具， 包括：工作部件，该工作部件具有工作端和与工作端相对的手柄端；手柄，该手柄安装在工作部件的手柄端上，且具有工作部件端和撞击部件端；撞击部件，该撞击部件安装在手柄的撞击部件端上。本发明的手动工具的撞击部件与工作部件的手柄端相连的部分为接触面，手柄端或接触面设置为可形变的非刚性接触，实现工作部件和撞击部件的可靠连接。
进一步地，接触面和手柄端中的至少一个设置为齿状，该齿状能发生形变从而与接触面形成无间隙连接。
进一步地，撞击部件具有舌部，舌部具有凹槽，凹槽用于容纳所述手柄端的一部分，凹槽的封闭端为接触面。
进一步地， 本发明的具有可靠连接的手动工具还包括连接部件，该连接部件用于固定连接工作部件和撞击部件。
进一步地，工作部件的手柄端具有通孔，撞击部件的舌部具有通孔，连接部件安装在手柄端的通孔和撞击部件的舌部的通孔中。
进一步地，手柄端的通孔的轴线与舌部的通孔的轴线具有偏差，在外力作用下，由于齿状的形变，手柄端的通孔的轴线与舌部的通孔的轴线对齐。
进一步地，前述连接部件为销钉。
进一步地，撞击部件的舌部的通孔为两个，分别位于凹槽两侧的舌部上，且具有相同的轴线。
优选地，手柄端具有翘起部分，撞击部件的舌部设有与翘起部分配合的通孔，工作部件和撞击部件通过该翘起部分和该通孔固定连接。
进一步地，翘起部分被设置为在靠近撞击部件的一端与工作部件的手柄端连接，在背离撞击部件的一端偏离工作部件。
进一步地，该通孔为方形孔，与翘起部分接触的部分设置为斜面。
进一步地，在外力作用下，由于齿状的形变，翘起部分背离撞击部件的一端顺着斜面发生位移，从而固定连接工作部件和撞击部件。
优选地，本发明的具有可靠连接的手动工具，其工作部件的手柄端设置有对称的延伸部分，该延伸部分抵靠在撞击部件的接触面上。
进一步地，上述延伸部分被设置为单个齿状或多个齿状。
进一步地， 本发明的具有可靠连接的手动工具还包括铆接部件，铆接部件用于固定连接手柄和撞击部件。
进一步地，手柄的撞击部件端具有安装部分，安装部分具有通孔，撞击部件具有通孔，铆接部件安装在安装部分的通孔和撞击部件的通孔中。
进一步地， 安装部分的通孔和撞击部件的通孔具有偏差，在外力作用下，由于齿状的形变，安装部分的通孔的轴线和撞击部件的通孔的轴线能对齐。
进一步地，本发明的具有可靠连接的手动工具还包括套管，套管安装在安装部分的通孔和撞击部件的通孔中，铆接部件安装在套管内，套管被设置为能承受撞击部件传递的力。
进一步地，铆接部件为铆钉或铆管。
优选地，本发明的具有可靠连接的手动工具，其工作部件为刀片。
优选地，手柄撞击部件的材质为金属或高强度聚合物。
本发明的具有可靠连接的手动工具，通过工作部件的手柄端与撞击部件的接触面之间的形变，实现工作部件与撞击部件之间的无间隙紧密配合。这样的设置降低了对手动工具各部件生产精度的要求。比如撞击部件的接触面设置为平面时，其平整度不佳或者与延伸方向存在偏差，那么，可以通过相对应的手柄端面的齿状的形变，达到紧密配合。这样可以很好地降低部件的生产成本，并且有利于产品的微调。因此，本发明的手动工具具有可靠的连接，能够分散撞击力，延长手柄的使用寿命。
附图说明
图 1 是本发明的刮刀的一种优选的具体实施方式的示意图。
图 2 是图 1 的刮刀的刀片的示意图。
图 3 是图 1 的刮刀的撞击部件的示意图。
图 4 是图 1 的刮刀仰视图的剖面图。
图 5 是图 1 的刮刀撞击部件与刀片结合处主视图的剖面图。
图 6 是图 1 的刮刀的装配示意图。
图 7 是本发明的刮刀的另一优选的具体实施方式的刀片和撞击部件的组合示意图。
图 8 是图 7 中的另一优选的具体实施方式的刮刀的主视图的部分剖面图。
图 9 是图 7 中的另一优选的具体实施方式的刮刀的仰视图的部分剖面图。
图 10 是图 7 中的另一优选的具体实施方式的刮刀的装配示意图。
图 11 是本发明的刮刀的又一优选的具体实施方式的仰视图的剖面图。
图 12 是图 11 的刮刀的又一优选的具体实施方式的主视图的部分剖面图。
图 13 是图 11 的刮刀的又一优选的具体实施方式的装配示意图。
具体实施方式
图 1 至图 6 是本发明提供的具有可靠连接的手动工具的一种优选的具体实施方式，其中工作部件为刀片，该具有可靠连接的手动工具为刮刀。如图 1 所示，该刮刀包括刀片 1 、手柄 2 和撞击部件 3 。该刮刀的安装顺序为：先将手柄 2 安装到刀片 1 上，然后将撞击部件 3 安装到手柄 2 和刀片 1 上。其中，刀片 1 贯穿手柄 2 。手柄 2 可以通过注塑的方式形成于刀片 1 上。本领域技术人员可知，常规的工具手柄的形成及安装方式都可用于本发明中的手动工具手柄的形成。
如图 2 所示，刀片 1 具有工作端 11 和与工作端 11 相对的手柄端 12 ，手柄端 12 上设有通孔 13 ，手柄端 12 的末端为手柄端面 121 。手柄端面 121 设置为齿状。
如图 3 所示，撞击部件 3 包括沿对称轴向外延伸出的舌部 31 ，舌部 31 在靠近刀片 1 的一端具有凹槽 32 ，凹槽 32 用于容纳刀片 1 的手柄端 12 的一部分。凹槽 32 两侧的舌部 31 上，相对应的设有通孔 33 。凹槽 32 的封闭端即为接触面 37 。
如图 4 所示，当安装有手柄 2 的刀片 1 与撞击部件 3 进行组装时，撞击部件 3 安装在手柄 2 的撞击部件端 211 上。撞击部件 3 的凹槽 32 容纳刀片 1 的手柄端 12 的一部分，使得刀片 1 上的通孔 13 和撞击部件 3 上的通孔 33 对齐。通过安装到通孔 13 和通孔 33 内的销钉 4 ，将刀片 1 和撞击部件 3 连接为一体。
一般情况下，由于零件的生产精度、限位等问题，很难保证刀片 1 、手柄 2 、撞击部件 3 在装配时相互之间同时可靠连接，即很难保证三者之间不发生较大相对位移。现有的设计中，通常只保证手柄 2 和撞击部件 3 的可靠连接，而在刀片 1 和撞击部件 3 之间留有一定的间隙。但是，这样设计的产品在使用敲击部件 3 进行敲击时，敲击部件 3 产生的力直接通过手柄 2 传递，不能很好地传递到刀片 1 上。或者说，使用者在敲击时是通过手柄 2 来传递力量的，不是刀片 1 直接将力量传递到敲击部件 3 上。
为了解决这样的问题，本发明将刀片 1 和敲击部件 3 的接触部位设计成可形变的非刚性接触。在本具体实施方式中，将手柄端面 121 设计成齿状，并使撞击部件 3 装配到手柄 2 上时，刀片上的通孔 13 与撞击部件 3 舌部 31 上的通孔 33 的轴线具有偏差，且撞击部件 3 上的通孔 33 的轴线相对于刀片 1 上的通孔 13 更远离刀片 1 的工作端 11 。这时刀片 1 和撞击部件 3 之间应该有一定的间隙，通过在敲击部件 3 和手柄 2 上施加作用力，使得刀片 1 的手柄端面 121 的齿状部分产生形变，从而使刀片 1 和撞击部件 3 之间的间隙完全消失，如图 5 所示。然后再安装销钉 4 ，从而实现刀片 1 、手柄 2 和撞击部件 3 之间的可靠固定连接。
通过这样的设计，有效实现了刀片 1 、手柄 2 和撞击部件 3 之间的可靠连接，同时又可以降低对三者的加工精度要求。此外，可以根据不同手动工具产品的不同的材质来设计不同形状的齿形，来实现上述可靠连接。
如图 6 所示，手柄 2 包括手柄主体 21 和软套 22 。手柄主体 21 的撞击部件端 211 ，具有向外延伸的安装部分 212 ，安装部分 212 为对称结构，分布在手柄的两侧，撞击部件 3 能容纳手柄 2 的安装部分 212 ，加强了手柄 2 与撞击部件 3 之间的组装稳定性。软套 22 外套于手柄主体 21 的外部， 使得手柄 2 与撞击部件 3 形成平整的外表面。
软套 22 的材质可以为橡胶，橡胶上可以设置花纹，增加使用人员握持的手感，并增加防滑性。本领域其他人员可知，手柄主体 21 还可以通过其它方式制作，在此不再详述。
在本具体实施方式中，当使用该刮刀的撞击部件 3 进行敲击时，撞击力通过撞击部件 3 直接传递到刀片 1 上，大大减小了传递到手柄 2 上的撞击力，从而起到了减小手柄损伤的作用。
图 7 至图 10 是本发明的另一个优选的具体实施方式，其中，刀片 1 和撞击部件 3 的连接方式为卡勾连接。
如图 7 至图 9 所示，撞击部件 3 包括沿对称轴向外延伸出的舌部 31 ，舌部 31 在靠近刀片 1 的一端具有凹槽 32 ，凹槽 32 用于容纳刀片 1 的手柄端 12 的一部分。凹槽 32 的封闭端即为接触面 37 。凹槽 32 一侧的舌部上，设置有方形开孔 33 。方形开孔 33 靠近刀片 1 的孔边缘设置为斜面，斜面与凹槽 32 所在平面具有锐角夹角。
刀片 1 的手柄端 12 具有翘起部分 15 ，翘起部分 15 靠近手柄端面 121 一端与刀片连接，远离手柄端面 121 的一端偏离刀片 1 。翘起部分 15 与撞击部件 3 上的方形开孔 33 配对设置。
当安装有手柄 2 的刀片 1 与撞击部件 3 进行组装时，将撞击部件 3 推入手柄 2 中。此时，刀片 1 上的翘起部分 15 会在方形开孔 33 的边缘的作用下，发生朝向刀片 1 的形变。在进入方形开孔 33 后，沿着方形开孔 33 的斜面其形变部分恢复，从而将刀片 1 和撞击部件 3 连接为一体。
在普通的设计中，这样的连接方式同样存在第一个具体实施方式中提到的问题，即刀片 1 和撞击部件 3 之间会留有一定的间隙，在使用敲击部件 3 进行敲击时，敲击部件 3 产生的力是直接通过手柄 2 传递，不能很好地传递到刀片 1 上。
在本具体实施方式中，将刀片 1 的手柄端面 121 设计成齿状，撞击部件 3 装配到手柄 2 上时，刀片与撞击部件 3 之间通过卡勾连接。此时，刀片 1 和撞击部件 3 之间应该有一定的间隙。通过在撞击部件 3 和手柄 2 上施加作用力，使得刀片 1 的手柄端面 121 的齿状部分产生形变，以实现刀片 1 和撞击部件 3 之间的间隙完全消失，如图 8 所示。此时，撞击部件 3 发生位移而更靠近手柄 2 ，翘起部分 15 的形变进一步恢复，与方形开孔 33 的斜面相抵靠，形成更紧密的卡合，维持刀片 1 的手柄端面 121 和撞击部件 3 的接触面 37 之间的无间隙配合，由此实现刀片 1 、手柄 2 和撞击部件 3 之间的可靠固定连接。
同样地，可以根据不同手动工具产品的不同的材质来设计不同形状的齿形，来实现上述可靠连接。
如图 10 所示，手柄 2 包括手柄主体 21 和软套 22 ，其安装方式与前一优选的具体实施方式相同。将软套 22 套设到手柄主体 21 上，整体手柄部分表面平整。此外，手柄 2 还可包括上盖 23 和下盖 24 。可以在上盖 24 和下盖 24 上设置花纹增加使用者手部与手柄间的摩擦力，也可以设置商品标识等。
在本具体实施方式中，当使用该刮刀的撞击部件 3 进行敲击时，撞击力通过撞击部件 3 直接传递到刀片 1 上，大大减小了传递到手柄 2 上的撞击力，从而起到了减小手柄损伤的作用。
图 11 至图 13 是本发明的又一优选的具体实施方式，刀片 1 、手柄 2 和撞击部件 3 的连接方式为铆管连接。
如图 11 和图 12 所示，刀片 1 的手柄端 12 的末端设置为 U 形结构， U 形突出的部分为延伸部分 14 。
如图 13 所示，手柄 2 的手柄主体 21 的撞击部件端 211 具有向外延伸的安装部分 212 ，安装部分 212 具有通孔 213 。撞击部件 3 具有能容纳安装部分 212 的空腔 34 ，该空腔 34 的两侧设有与刀片 1 的延伸部分 14 接触的接触面 35 。此外，撞击部件上还设有通孔 36 。
当安装有手柄 2 的刀片 1 与撞击部件 3 进行组装时，撞击部件 3 通过空腔 34 安装到手柄 2 的安装部分 212 上，使得安装部分 212 上的通孔 213 和撞击部件 3 上的通孔 36 对齐，套管 51 安装到通孔 213 和通孔 36 中，将刀片 1 、手柄 2 和撞击部件 3 连接为一体。
在普通的设计中， 这样的连接方式同样存在第一个具体实施方式中提到的问题，即刀片 1 的延伸部分 14 和撞击部件 3 的接触面 35 之间会留有一定的间隙，在使用敲击部件 3 进行敲击时，敲击部件 3 产生的力是直接通过手柄 2 传递，不能很好地传递到刀片 1 上。
在本具体实施方式中，刀片 1 的延伸部分 14 设置为齿状，该齿状可以是单个齿状或者多个齿状。已经组装好的刀片 1 和手柄 2 与撞击部件 3 进行装配，此时，手柄 2 安装部分 212 上的通孔 213 的轴线与撞击部件 3 上的通孔 36 的轴线有偏差，且通孔 213 的轴线相对于通孔 36 的轴线更靠近刀片 1 的工作端 11 。这时，刀片 1 的延伸部分 14 和撞击部件 3 的接触面 35 之间应该有一定的间隙，通过在敲击部件 3 和手柄 2 上施加作用力，使得刀片 1 的延伸部分 14 的齿状部分产生形变，以实现刀片 1 的延伸部分 14 和撞击部件 3 的接触部 35 之间的间隙完全消失，如图 12 所示。然后再将套管 51 安装在通孔 213 和通孔 36 中，将铆管 52 安装在套管 51 中，从而实现刀片 1 、手柄 2 和撞击部件 3 之间的可靠固定连接。
此外，可以根据不同手动工具产品的不同的材质来设计不同形状的齿形，来实现上述可靠连接。
手柄 2 还包括软套 22 套设在手柄主体 21 上。装配完成后，手柄部分表面平整。
在本具体实施方式中，套管具有一定的厚度与强度，能够承受撞击部件 3 传递来的撞击力。当使用该刮刀的撞击部件 3 进行敲击时，撞击力通过撞击部件 3 传递到套管 51 上，同时也直接传递到刀片 1 上，大大减小了传递到手柄 2 上的撞击力，从而起到了减小手柄损伤的作用。
一般的手动工具，其工作部件与撞击部件之间不能实现可靠连接，即工作部件的手柄端和撞击部件之间留有一定的间隙，使得撞击部件受到的撞击力不能很好的分散到工作部件上，从而容易损伤手柄。而本发明通过工作部件的手柄端与撞击部件的接触面之间的形变，实现工作部件与撞击部件之间的无间隙紧密配合。这样的设置降低了对手动工具各部件生产精度的要求，也很好地降低部件的生产成本，并且有利于产品的微调。因此，本发明的手动工具具有可靠的连接，能够分散撞击力，延长手柄的使用寿命。
以上详细描述了本发明的较佳具体实施例。应当理解，本领域的普通技术人员无需创造性劳动就可以根据本发明的构思作出诸多修改和变化。因此，凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。

Claims (21)

  1. 一种具有可靠连接的手动工具，包括：
    工作部件，所述工作部件具有工作端和与所述工作端相对的手柄端；
    手柄，所述手柄安装在工作部件的所述手柄端上，且具有工作部件端和撞击部件端；
    撞击部件，所述撞击部件安装在手柄的所述撞击部件端上；
    其特征在于，所述撞击部件与所述工作部件的所述手柄端相连的部分为接触面，所述手柄端或所述接触面设置为可形变的非刚性接触，实现所述工作部件和所述撞击部件的可靠连接。
  2. 根据权利要求 1 所述的具有可靠连接的手动工具，其特征在于，所述接触面和所述手柄端中的至少一个设置为齿状，所述齿状能发生形变从而与所述接触面形成无间隙连接。
  3. 根据权利要求 2 所述的具有可靠连接的手动工具，其特征在于，所述撞击部件具有舌部，所述舌部具有凹槽，所述凹槽用于容纳所述手柄端的一部分，所述凹槽的封闭端为所述接触面。
  4. 根据权利要求 3 所述的具有可靠连接的手动工具，其特征在于，所述具有可靠连接的手动工具还包括连接部件，所述连接部件用于固定连接所述工作部件和所述撞击部件。
  5. 根据权利要求 4 所述的具有可靠连接的手动工具，其特征在于，所述手柄端具有通孔，所述撞击部件的舌部具有通孔，所述连接部件安装在所述手柄端的通孔和所述撞击部件的舌部的通孔中。
  6. 根据权利要求 5 所述的具有可靠连接的手动工具，其特征在于，所述手柄端的通孔的轴线与所述舌部的通孔的轴线被设置为具有偏差，在外力作用下，由于所述齿状的形变，所述手柄端的通孔的轴线与所述舌部的通孔的轴线对齐。
  7. 根据权利要求 4 所述的具有可靠连接的手动工具，其特征在于，所述连接部件为销钉。
  8. 根据权利要求 6 所述的具有可靠连接的手动工具，其特征在于，所述舌部的通孔为两个，分别位于所述凹槽两侧的舌部上，具有相同的轴线。
  9. 根据权利要求 3 所述的具有可靠连接的手动工具，其特征在于，所述手柄端具有翘起部分，所述撞击部件的舌部设有与所述翘起部分配合的通孔，所述工作部件和所述撞击部件通过所述翘起部分和所述通孔固定连接。
  10. 根据权利要求 9 所述的具有可靠连接的手动工具，其特征在于， 所述翘起部分被设置为在靠近所述撞击部件的一端与工作部件的所述手柄端连接，在背离所述撞击部件的一端偏离所述工作部件。
  11. 根据权利要求 10 所述的具有可靠连接的手动工具，其特征在于，所述通孔为方形孔，与所述翘起部分接触的部分设置为斜面。
  12. 根据权利要求 11 所述的具有可靠连接的手动工具，其特征在于，在外力作用下，由于所述齿状的形变，所述翘起部分背离所述撞击部件的一端顺着所述斜面发生位移，从而固定连接所述工作部件和所述撞击部件。
  13. 根据权利要求 2 所述的具有可靠连接的手动工具，其特征在于，所述工作部件的所述手柄端设置有对称的延伸部分，所述延伸部分抵靠所述撞击部件的所述接触面上。
  14. 根据权利要求 13 所述的具有可靠连接的手动工具，其特征在于，所述延伸部分被设置为单个齿状或多个齿状。
  15. 根据权利要求 13 所述的具有可靠连接的手动工具，其特征在于，所述具有可靠连接的手动工具还包括铆接部件，所述铆接部件用于固定连接所述手柄和所述撞击部件。
  16. 根据权利要求 15 所述的具有可靠连接的手动工具，其特征在于，所述手柄的撞击部件端具有安装部分，所述安装部分具有通孔，所述撞击部件具有通孔，所述铆接部件安装在所述安装部分的通孔和所述撞击部件的通孔中。
  17. 根据权利要求 16 所述的具有可靠连接的手动工具，其特征在于， 所述安装部分的通孔的轴线和所述撞击部件的通孔的轴线具有偏差，在外力作用下，由于所述齿状的形变，所述安装部分的通孔的轴线和所述撞击部件的通孔的轴线能对齐。
  18. 根据权利要求 16 所述的具有可靠连接的手动工具，其特征在于，所述具有可靠连接的手动工具还包括套管，所述套管安装在所述安装部分的通孔和所述撞击部件的通孔中，所述铆接部件安装在所述套管内，所述套管被设置为能承受撞击部件传递的力。
  19. 根据权利要求 15 所述的具有可靠连接的手动工具，其特征在于，所述铆接部件为铆钉或铆管。
  20. 根据权利要求 1 所述的具有可靠连接的手动工具，其特征在于，所述工作部件为刀片。
  21. 根据权利要求 1 所述的具有可靠连接的手动工具，其特征在于，所述手柄撞击部件的材质为金属或高强度聚合物。
PCT/CN2015/072368 2015-02-06 2015-02-06 具有可靠连接的手动工具 WO2016123784A1 (zh)

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Application Number Priority Date Filing Date Title
CA2975763A CA2975763C (en) 2015-02-06 2015-02-06 Hand tool with reliable connections
EP15880740.4A EP3254810B1 (en) 2015-02-06 2015-02-06 Manual tool having reliable connection
US15/548,954 US10518401B2 (en) 2015-02-06 2015-02-06 Hand tool with reliable connections
PCT/CN2015/072368 WO2016123784A1 (zh) 2015-02-06 2015-02-06 具有可靠连接的手动工具

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