Scaffolding material pipe hook hammer with arc shape

Abstract

We provide a hammer with an arc-shaped finish for hooking scaffolding pipes. [Solution] The hammer has an arc-shaped design 6a on the inside of both sides that is slightly larger than the pipe diameter 6b of the scaffolding material, allowing the pipe to be hooked onto this part, making it usable as a one-handed hammer. This increases work efficiency and also helps prevent workers from falling. Conventional hammers used at scaffolding assembly and demolition work sites do not have the function to support the pipes used as scaffolding material, so in order to move the pipes, the hammer had to be stored in a waist belt and moved by hand.

Description

[Technical Field]

[0001] This invention relates to a hammer used at construction sites for work such as assembling and dismantling scaffolding. [Background technology]

[0002] When assembling and dismantling scaffolding, I always have to hold a hammer in my hand because I have to use it to connect the single pipes of the scaffolding posts, handrails, etc. to the joints. However, over the years of working on construction sites, I have noticed the safety issues of having to support my body while holding a tool in one hand and the inconvenience of having one hand occupied. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-170572 published [Non-patent literature]

[0004] [Non-Patent Document 1] Susa Seisakusho Osho Catalog JAN Code 201136 [Non-patent document 2] Soden HOLD-U Co., Ltd. Summary of the Invention [Problem to be solved by the invention]

[0005] With conventional scaffolding assembly hammers, one hand is occupied when holding the hammer, posing a risk of dropping the hammer or the worker, and is therefore lacking in safety and convenience. To enable safe and functional use while retaining the functionality of the conventional hammer, arc-shaped hooks have been added to both sides of the hammer head, supporting the body in the event of loss of balance. Previously, the hammer was stored in a waist belt each time a scaffolding pipe was held, but now the arc-shaped part can be used to hook the scaffolding pipe and use it in place of one hand, improving work efficiency. [Means for solving the problem]

[0006] As shown in Figure 6, this device has a recess 6a (arc-shaped recess in the hammer head) with a diameter slightly larger than 6b (arc in the pipe material), and the recesses are formed symmetrically on both sides of the underarms around the center axis of the hammer so that the hammer head can be hooked onto the scaffolding material pipe. This increases safety by allowing the hammer to be hooked onto a single pipe such as a scaffolding handrail when the body loses balance, and also improves work efficiency by allowing scaffolding material to be hooked or held (placed) on the arc-shaped recess. [Effects of the Invention]

[0007] After five workers actually used the hammer for a certain period of time (approximately one month), it was found that the hammer no longer needed to be stored in a waist belt, and that this reduced actual work time by 5 to 10%. In addition, the ability to reflexively hook the hammer when the worker loses balance gave the worker an absolute sense of security. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a front view showing an embodiment of a hammer with an arc-shaped finish for hooking scaffolding material pipes. [Figure 2] This is a view of Figure 1 from the left and right (the left and right have the same shape). [Figure 3] FIG. 2 is a top view of FIG. 1. [Figure 4] FIG. 2 is a bottom view of FIG. 1. [Figure 5] 1 is a perspective view of a hammer according to the present invention; [Figure 6] FIG. 1 is a diagram showing the relationship between the hammer and the scaffolding pipe of the present invention. Form for implementing the idea

[0009] The worker holds the grip like a normal hammer and when assembling scaffolding pipes, he uses the hammer to strike from above to push the scaffolding pipes into clamps (which are used to connect the scaffolding pipes together). When dismantling, he uses the hammer to strike from below to remove the scaffolding pipes from the clamps. This hammer has recesses on both underarms, symmetrically positioned around the hammer's center axis, so that the recesses can be used to hold the scaffolding pipes on which it is placed, or the worker can hook the recesses onto the scaffolding pipes to support their body.

[0010] An embodiment will be described below with reference to the accompanying drawings. (1) The hammer head is made of metal. (2) is an arc-shaped part that can be hooked onto and held (placed on) a scaffolding post or handrail. (3) is a metal fitting attached so that it can be hung on a hook during storage. (4) is a metal hammer handle. (5) is a rubber grip. (6) is a metal fitting attached to the bottom of the grip, like (3), so that it can be hung on a hook during storage. [Explanation of symbols]

[0011] ▲1▼ Hammerhead ▲2▼ Arc-shaped hook section ▲3▼ Engagement fitting 1 ▲4▼ Pattern ▲5▼ Grip ▲6▼ Engagement fitting 2

Claims

[Claim 1] A hammer consisting of an engaging fitting, hammer head, handle and grip portion, which has an arc-shaped recess with a diameter slightly larger than the arc of the scaffolding material pipe relative to the central axis of the hammer in the longitudinal direction, and the recess is formed symmetrically on both underarm sides relative to the central axis of the hammer in the longitudinal direction.

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