CN201161262Y - Hand tool and handle thereof - Google Patents

Abstract

The utility model provides a manipulative device, which comprises a working part and a user/operator interfacing part provided with a handle, wherein, the handle comprises a pair of extended parts, each extended part has an I-shaped cross section and comprises a holding part which has an external surface and an internal surface; the external surface is formed by an outline consisting of a plurality of constant radius; therefore, the handle is suited to the hand of the user/operator and reduces or removes the unwanted stress concentration point; the internal surface of the holding part is provided with a finger locating part for holding and locating the finger of the operator around the holding part. The manipulative device effectively conveys the force applied by the operator to the workpiece through the manipulative device and provides intensified comfortability for the operator.

Description

Hand tools and handle thereof

Technical field

The disclosure is broadly directed to hand tools, and the interface portion of operating this instrument by user/operator, as handle.

Background technology

The content of this part only provides and relates to background information of the present disclosure, may not constitute prior art.

Hand tools generally includes operate portions (that is, in the instrument with interactional part such as workpiece) and user's interface portion (that is the part of user/operator's operation in the instrument).In the manufacturing of known hand tools, make the production hand tools, to form the expection work part of instrument by steel drift pressure or forging.It also is very general that user's interface portion of instrument is wrapped flexible plastic.Yet, in such hand tools, user's interface portion is not optimized, with the efficient of maximization instrument and user/operator's comfort level.

The utility model content

The purpose of this utility model provides hand tools and handle thereof, its power that the user/operator of instrument can be applied is delivered to most effectively on the workpiece of instrument positive interaction, minimizes any uncomfortable feeling of user/operator in the use of instrument and operating process.

To achieve these goals, the utility model provides a kind of hand tools, comprising: flanging part, and it is suitable for surrounding the end of pipe; And handle, it is installed on the described flanging part, and described handle comprises the grip part with inner surface and outer surface, the profile that the outer surface of wherein said grip part is limited by a plurality of constant radius and constituting.

The utility model also provides a kind of handle of hand tools, comprises the grip part with inner surface and outer surface, and described outer surface comprises the profile that is limited by a plurality of constant radiuses.

Advantage of the present utility model is that by said structure user/operator's applied force can more cosily be applied on the hand tools, and can reduce or eliminate undesirable stress concentration points and user/operator's fatigue.

Thereby, seek to have suitable strength and stiffness and improve user's the sense of touch and the hand tools of feedback simultaneously.In addition, it is the lightest to wish that weight with hand tools remains on, and makes its intensity simultaneously and the ability maximization of the strength transmitted to workpiece from the user.

Description of drawings

Only conduct signal of the accompanying drawing here, and also never in any form the scope of the present disclosure is limited.

Fig. 1 is the perspective view of the crimping hand tools of constructing according to teaching of the present disclosure;

Fig. 2 is the amplification partial elevation view of the hand tools of Fig. 1, shows the details of handle;

Fig. 2 A is the cutaway view along the line 2A-2A of Fig. 2;

Fig. 3 is the amplification partial top view of the hand tools of Fig. 1, shows the details of handle;

Fig. 4 is the partial side view of the hand tools of Fig. 1, shows handle;

Fig. 5 is the front view according to the crimping hand tools of another form of the present disclosure;

In a plurality of figure of accompanying drawing, corresponding Reference numeral is represented corresponding parts.

The specific embodiment

Explanation hereinafter only is exemplary in nature, the disclosure, application or use is not limited.Should understand in the accompanying drawings, corresponding Reference numeral representation class like or corresponding parts and feature.Although here in the context of crimping hand tools with reference to the theme invention, should be understood that and understand feature of the present invention and attribute to can be applicable in multiple hand tools any, and be not limited to device shown and that describe here.

With reference to figure 1, show the crimping hand tools of constructing according to teaching of the present disclosure, and substantially by Reference numeral 10 expressions.Crimping hand tools 10 comprises operate portions 12 and user/operator interface portion 14.In this exemplary embodiment, operate portions 12 is flanging parts and user/operator interface portion 14 is handles.

Flanging part 12 comprises a pair of pawl 16, and this jointly defines the crimping environmental protection to pawl 16 betweens and holds space 18.Pawl 16 pivotally is connected to pivoting point 20.The crimping environmental protection is held space 18 and is increased away from each other the time at pawl 16, thereby crimping ring (not shown) is contained in wherein.When pawl 16 was moved toward each other, pawl 16 formed crimping on the crimping ring, so that the accessory (not shown) is fixed on the pipe (not shown).

Pawl 16 is connected with attaching parts 22.Attaching parts 22 are provided with a pair of leg (not shown) that is embedded in the handle 14.Handle 14 is connected with flanging part 12 at the leg place.A kind of mode that handle 14 is connected with flanging part is around leg handle 14 to be carried out injection-molded.

Alternatively, can be installed on the pawl 16, be used for instrument calibration, as shown in Figure 5 regulating lock-screw 23.

Referring to figs. 1 to 4, user/operator interface portion comprises handle 14, and handle 14 comprises a pair of prolongation parts that are connected to flanging part 12.These two prolong parts 24 and are configured and are arranged to and locate with respect to the longitudinal axis X mirror image of crimping hand tools 10.Each prolongs parts 24 quilts being held in user/operator's the hand.Prolong parts 24 and respectively have the head 26 that engages with attaching parts 22, make the grip part 28 of user/operator's energy grasping hand tools, and be arranged on transition part 30 between the two.Handle 14 has front surface 32 and rear surface 34.Grip part 28 respectively has inner surface 36 and outer surface 38.

Handle comprises the roughly cross section of I shape (seeing Fig. 2 A), and it forms on the front surface 32 of handle 14 and rear surface 34 every and prolongs groove 40.Prolonging groove 40 extends along the length of grip part 28 and transition part 30.I shape cross section provides rigidity and the intensity improved for the prolongation parts of handle 14.This rigidity and intensity have caused being applied to any power on the handle 14, and the power that is applied by user/operator for example more effectively is passed to the workpiece of hand tools.

Each head 26 is provided with stops 27, and stops 27 extends to another stops 27 inwardly from hand tools.Stops 27 has limited and has prolonged parts 24 motion toward each other.In addition, stops 27 helps tactile response and " sensation " of hand tools to user/operator.As shown, the shape of stops 27 is general triangular; Yet the size and dimension of stops 27 can change as required, to produce the difference sensation to hand tools 10.For example, the size and/or the shape that change stops 27 can improve or reduce its elasticity, and change the mode that applies opposite power to hand tools.Therefore, can change the tactile response that user/operator experiences.

Be arranged to make hand tools cosily to meet user/operator's hand shape and grasping grip part 28 profiles.The outer surface 38 of grip part 28 is by a plurality of constant radius R ₁, R ₂And R ₃Form.R ₁, R ₂And R ₃Can equate or difference.Adopt the constant radius structure, user/operator acts on that the reaction force of the power on the handle is more all even cosily to be dispensed to user/operator on hand, and the stress concentration points on the grip part 28 of handle 14 is reduced or eliminates.Like this, user/operator's discomfort, pain and fatigue have been reduced or eliminated.

The inner surface 36 of grip part 28 is provided with a plurality of evenly spaced protuberances 42 that extend along grip part 28.Groove 44 is formed between the protuberance 42.Groove 44 and protuberance 42 combine and form the finger position location, thereby user/operator's finger can suitably and cosily be placed when using hand tools.When user/operator's finger was in the position location, if needed, groove 40 also provided the exceptional space that wherein can allow user/operator's finger tip extend.Therefore, user/operator's hand and finger more suitably and are cosily placed and are supported on around the grip part 28.In addition, by said structure, user/operator's applied force can more cosily be applied on the hand tools.Thereby, can reduce or eliminate undesirable stress concentration points and user/operator's fatigue.

Handle is preferably made by lightweight, durable makrolon material, as the Merlon of 30% glass filling.As a result, this handle is lighter more than 20% than the handle of traditional-handwork instrument.In addition, the design of handle makes that making the required quantity of material of handle reduces.Such minimizing has reduced the cost of raw material relevant with the manufacturing of hand tools.

By the structure of the illustrated hand tools of the disclosure, this handle is a lightweight, yet has the strength of materials and the efficient of improvement.In addition, the constant radius shape of three kinds of sizes of handle in conjunction with the finger position location, makes that user/operator can be cosily and use this hand tools efficiently.

Should be understood that handle illustrated in the disclosure can be used for except shown in specific bead tool multiple hand tools.Therefore, explanation of the present disclosure is as just example, and the change that does not depart from essence of the present disclosure all drops in the category of the present disclosure.Such change is not regarded as departing from essence of the present disclosure and category.

Claims (8)

1. hand tools comprises:

Flanging part, it is suitable for surrounding the end of pipe; With

Handle, it is installed on the described flanging part, and described handle comprises the grip part with inner surface and outer surface,

The profile that the outer surface of wherein said grip part is limited by a plurality of constant radius and constituting.

2. hand tools as claimed in claim 1, wherein said handle comprise the roughly cross section of I shape.

3. hand tools as claimed in claim 1, the described inner surface of wherein said grip part comprise the finger location division.

4. hand tools as claimed in claim 3, wherein said finger location division comprise the length groove at interval along the described inner surface of described grip part.

5. hand tools as claimed in claim 1, wherein said handle is integrally molded on the described flanging part.

6. the handle of a hand tools comprises the grip part with inner surface and outer surface, and described outer surface comprises the profile that is limited by a plurality of constant radiuses.

7. handle as claimed in claim 6, the described inner surface of wherein said grip part define the finger location division.

8. handle as claimed in claim 6, wherein said handle comprise the roughly cross section of I shape.

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