JPS5831658Y2 - hammer handle - Google Patents

Description

[Detailed description of the invention] This invention relates to the handle of a hammer, and in particular, to the grip part of the handle of the hammer...to reduce the impact force when hitting the hammer, to prevent slipping, and to improve the texture, as well as to improve the small diameter core frame part of the handle body. The attachment of the grip cover to the core frame part, which is intended to reliably prevent deformation and rotation of the attached grip cover, is related to the structure of the part.

The grip cover attached to the grip of the hammer is subjected to repeated beating operations over a long period of time, so even if the cover is bonded to the core frame of the grip with a strong adhesive, the grip cover will not work properly. With each blow, a large torsional force acts instantaneously, deforming the cover, and eventually causing the gripping core frame of the handle to rotate in the middle, which may seriously impede subsequent punching operations.

This invention forms a fitting uneven part on the outer end of the core frame of the grip part of the handle, and also forms a ridge fitting part at the deepest bottom of the blind elongated hole of the grip cover, which fits relatively to the fitting part. The fitting of the concave and convex portions is intended to effectively prevent the grip cover from deforming and rotating. Next, an embodiment of this invention will be described in detail with reference to the drawings.

The core frame 2 of the grip part, which has a smaller diameter by one step on the handle body of the handle 1, is particularly formed in a non-perfect circular cross-section, for example, an elliptical cross-section or a polygonal cross-section, and its outer end A recess 3 is formed in the part, and the recess 3 is formed by, for example, cutting at least one groove 3a into the side surface of the core frame 2.
In addition, a notch 3b is carved in the end face of the core frame 2 (FIG. 3), or a stepped notch 3c is formed in the end of the core frame (FIG. 4).

Reference numeral 4 is made of a thick rubber-like elastic body made of rubber or synthetic resin, and is placed on the grip core frame 2, which has a rough anti-slip surface 5, for example, a large number of groove groups carved on its entire surface. In the grip cover, a blind elongated hole 6 is provided in the longitudinal axis direction of the cover 4, and the deepest bottom of the elongated hole 6 is in close contact with the recess 3 formed at the outer end of the core frame 2. A convex portion 7 is relatively formed which can fit into the concave portion, that is, can sufficiently groove the recessed portion of the concave portion.

Of course, the recess 3 at the outer end of the core frame and the protrusion 7 at the deepest bottom of the elongated hole 6 of the grip cover 40 can be arranged at different locations as appropriate, and this replacement will not cause any hindrance to the distant development of this invention. It is self-evident that there is no such thing.

An adhesive is applied to the surface of the core frame 2 or adhesive is injected into the blind long hole 6 of the grip cover, and the grip core frame 2 is inserted into the long hole 6 and formed at the tip of the core frame 2. The convex part 7 formed at the deepest bottom of the cover 4 is fitted into the concave part 3, and the grip cover 4 is placed on the core frame 2, so that the grip cover 4 and the main body part of the handle 1 are flush with each other and have a good appearance. .

By attaching a cover to the grip of the hammer's handle, the impact of a blow is absorbed by the thick rubber-like elastic cover, effectively mitigating the impact force, and making it possible to reduce the number of repetitions caused by the hammer. Due to the beating work that is performed, torsional force is repeatedly applied to the grip cover with each blow, and although a force is applied to the cover to prevent it from rotating around the core frame, the elongated hole formed in the deepest part of the cover The convex portion and the concave portion formed on the outer end of the horizontal bar fit tightly together, and rotation of the cover is prevented by the locking of the concave and convex portion that maintains the fitted state. In this type of hammer, the rotation of the cover on the horizontal bar, which prevents smooth hammering, is effectively suppressed over a long period of time, and the core frame By making the cross-sectional shape of the cover non-circular, the effect of suppressing rotation of the cover can be further enhanced.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of a hammer based on this invention, and Figs. 2, 3, and 4 are perspective views of a portion of the handle in which various types of recesses are formed at the end of the horizontal bar. , Figure 5,
6 and 7 are central horizontal longitudinal sectional views showing the state in which the cover is attached to the end portion of the horizontal bar illustrated in FIGS. 2 to 4, respectively. In the figure, 1 is a handle, 2 is a core frame of a grip part, 3 is a recessed part, 4 is a grip cover, 6 is a long hole, and 7 is a convex part.

Claims (1)

[Scope of utility model registration request] A small-diameter grip part core frame 2 formed through a step on the main body of the handle 1 has a small diameter grip core frame 2, and a fitting concave-convex portion 3 is formed at the outer end thereof. At the deepest bottom of the blind elongated hole 6 of the thick grip cover 4 made of an elastic material, a concavo-convex portion 7 corresponding to the fitting concavo-convex portion 3 formed at the outer end of the core frame is formed. A handle of a non-merchandising machine, in which a core frame 2 is inserted through an adhesive, the fitting uneven parts 3 and 7 are respectively fitted, and the grip core frame 2 is covered with a clip cover 4.