JP2017155389A - Knee Protector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a knee protector preventing a knee from being damaged when abruptly bending the knee.SOLUTION: The knee protector includes: a cup part 1 having strength for protecting a knee and shape retaining properties; a front pad 2 disposed on an inner face of the cup part 1 and having cushioning properties; and a fitting belt 3 such as a stretchable string for fitting the cup part 1 to the knee, the fitting belt 3 supporting a back pad 4 inserted between a thigh and a calf when the knee is bent with intensity. The back pad 4 covers an outer surface by a sheet material, such as a hygroscopic sheet material, with a soft foamed synthetic resin material used as a core material 5, and both right/left upper edges thereof are suspendedly supported by the fitting belt 3.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a knee protector that is used when a work is performed with a knee attached mainly during tile work, interior floor sticking, interior cleaning work, and agricultural work.

When performing outdoor work such as farm work and civil engineering work, and indoor work such as tile work and interior flooring, there are many work such as working with the knees or unexpectedly kneeling. In such a case, protectors for various knees have been devised in order to prevent breakage of the pants or protect the knee.
For example, Patent Document 2 discloses an invention of a knee pad in which a cushioning sheet body is mounted in a state of covering a knee using a hook-and-loop fastener.
Further, in Patent Document 3, a connecting portion is provided at the center of the upper end of a knee pad cushion material to be attached to the knee by bands provided at two upper and lower portions, and one end of a thin elastic material is connected to the connecting portion and the thin plate. An invention is disclosed in which a winding elastic storage case is fixed to a waist band 6 and a cushioning sheet material is always pulled upward.
Since Patent Documents 2 and 3 are liable to cause positional displacement during work, the present inventors devised a sturdy knee protector that is disclosed in Patent Document 1 and hardly causes positional displacement.
JP 2009-24282 A JP-A-10-46411 JP 2007-113127 A

  The conventional knee protectors described in Patent Documents 1 to 3 have the effect of reducing the damage caused to the knee due to the force from the front of the knee, that is, the load when the knee is put on, but suddenly kneel. It was not possible to prevent shock damage to the knee that occurs when the arm is bent or damage to the knee that occurs due to work with the knee bent for a long time.

  In view of the above disadvantages of the prior art, the present invention provides for a situation where an impact is applied by suddenly bending the knee, or when the knee is damaged due to the work in a state where the knee is bent for a long time. An object of the present invention is to provide a knee protector that can reduce damage to the knee.

  In order to achieve the above object, according to the first aspect of the present invention, a cup portion 1 having strength and shape retention for protecting the knee, and a front pad 2 having cushioning properties are arranged on the inner surface of the cup portion 1. . The cup portion 1 is provided with a mounting belt 3 such as an elastic strap for mounting on the knee, and in the present invention, the back pad 4 sandwiched between the thigh and the calf when the knee is strongly bent is mounted on the cup portion 1. The belt 3 is supported.

  According to the second aspect of the present invention, the back pad 4 is a flat plate in which a flexible foamed synthetic resin material is used as a core material 5 and the outer surface is covered with a sheet material 6. That is.

When the knee is bent suddenly during work, for example, when the hip is accidentally dropped, the knee may be bent without a force to stop bending the knee. In such a case, a shocking force acts in the direction of bending the knee. However, in the knee protector of the present invention, the upper and lower portions of the knee when the knee is bent, that is, between the thigh and the calf. The back pad 4 is sandwiched between the two.
As a result, the thigh and the calf are supported by the back pad 4. When the back pad 4 is positioned between the thigh and the calf, the impact acting on the knee is absorbed by the flexibility of the back pad 4, and the knee flexion is restricted, and the knee is excessively bent. Damage can be prevented.

  According to the second aspect of the invention, the foamed synthetic resin material which is the core material 5 has an effect of effectively absorbing the impact. And since the core material 5 is coat | covered with the sheet material 6, for example, a hygroscopic sheet material, sweat is absorbed and work can be advanced comfortably. Furthermore, by supporting the upper and right and left positions of the upper surface of the back pad 4 formed on the flat plate on the mounting belt 3, the back pad 4 is stably held in a fixed position as much as possible on the back of the knee, and the back pad 4 is blindly moved. Therefore, the possibility that the movement of the worker is restricted can be reduced.

FIG. 1 is a perspective view of the entire knee protector, 2 is a front view, FIG. 3 is a side view showing a state in which the knee protector according to the present invention is mounted; 4 is a side view showing a state where the knee is bent deeply from the state shown in FIG. FIG. 5 is a longitudinal sectional view of the state shown in FIG.

  Hereinafter, preferred embodiments of a knee protector according to the present invention will be described with reference to the accompanying drawings. 1 is a perspective view, and FIG. 2 is a front view.

  The knee protector according to the embodiment shown in FIGS. 1 and 2 includes a cup portion 1 having strength and shape retention for protecting the knee, an attachment belt 3 for attaching the cup portion 1 to the knee, and a cup portion 1. It comprises a front pad 2 having a cushioning property to be disposed on the inner surface of the lip and covering the entire knee, and a back pad 4 positioned on the back of the knee.

  The cup portion 1 is made of a synthetic resin material, for example, a spherical surface or a heel shape, and is formed in a shape that allows the kneecap portion to naturally enter. And the higher grounding part 7 is formed in the center part grounded when a knee is put. The grounding portion 7 appears in a horizontally long oval shape in the front view shown in FIG.

A front pad 2 having cushioning properties and covering the entire knee is disposed on the inner surface of the cup portion 1. The front pad 2 preferably has cushioning properties for protecting the knee and strength of the outer surface that can withstand grounding.
The front pad 2 is divided into upper and lower parts, the upper pad 2a is fixed to the cup portion 1, and the upper pad 2a and the lower pad 2b are connected by a stretchable connecting member 8 as shown in FIG. In order to fix the cup part 1 and the upper pad 2a, the left and right sides and the upper part are firmly fixed by the scissors 9.

The mounting belt 3 for mounting the cup portion 1 on the knee uses a flat elastic belt. The mounting belt 3 is composed of a long right belt 3a fixed to the right side of the cup 1 with a flange 9, and a short left belt 3b fixed to the left side of the cup 1 with a flange 9, and is attached to the tip of the right belt 3a. One piece of male piece 10 of right belt 3a and one piece of female piece 11 of left belt 3b were turned to the back side of the knee by attaching male piece 10 of the fastener to the tip of left belt 3b. Can be attached and detached.
That is, the cup 1 is positioned in front of the knee, the long right belt 3a is wound around the back of the knee, and the male piece 10 at the tip is locked to the female piece 11 attached to the tip of the left belt 3b. Thus, the knee protector according to the present invention can be easily attached to the knee.

  The back pad 4 is supported on the mounting belt 3, specifically, the right belt 3a having a long dimension. That is, when the knee protector according to the present invention is mounted, the back pad 4 is suspended from the mounting belt on the back of the knee as shown in FIG. If the knee is bent strongly in this state, the back pad 4 is sandwiched between the thigh A and the calf B as shown in FIG. 4, thereby preventing the knee from being bent excessively and the elasticity of the back pad 4. The cushioning can reduce the damage to the knee.

  As the knee is bent and stretched, the surface greatly expands and contracts at the center of the knee, so as shown in the example, the upper pad 2a and the lower pad 2b are separated, and both ends are connected and the center is stretchable. By connecting with the connecting member 8, the upper pad 2a and the lower pad 2b repeat contact and separation in a more natural state. That is, the cup 1 and the upper pad 2a are stably mounted at the fixed positions of the knee, and the lower pad 2b moves up and down by bending and stretching the knee. Therefore, even if the squatting, standing up, and knee flexion due to walking are repeated, only the lower pad 2b moves up and down, and the entire knee protector does not shift and can be used with confidence.

  As shown in FIG. 5, the back pad 4 is a flat plate having a flexible foamed synthetic resin material as a core material 5 and an outer surface covered with a sheet material 6. As shown in FIG. 2, the back pad 4 formed as a flat plate is supported by the mounting belt 3 at both the left and right positions of the upper edge. In order to support the right and left positions of the upper edge on the right belt 3a, it can be locked with a locking tool such as a snap button. However, in the illustrated embodiment, a belt-shaped surface fastener fixed to the upper end of the back pad 4 The right belt 3a is held by 12 and 12. Thereby, the back pad 4 can be mounted stably without feeling uncomfortable.

The outer surface of the back pad 4 is covered with, for example, a mesh-like hygroscopic sheet material 6 having air permeability to improve sweat discomfort, and the outer periphery is sewn with an edge tape 13 to prevent fraying. . The outer periphery of the front pad 2, the lower edge of the upper pad 2a, and the upper edge of the lower pad are also sewn with the edge tape 13.
The core material 5 uses, for example, polyurethane foam or other foamed synthetic resin, has a thickness of about 2 to 3 centimeters, has an appropriate cushioning property to absorb impact, and has a thigh so as not to bend the knee excessively. It is assumed that an appropriate interval can be maintained between the calves.

  The back pad 4 formed in a substantially rounded corner has a size of the core material 5 ranging from 2 to 3 centimeters below the upper edge, and a hygroscopic sheet material that is an exterior body above the upper end of the core material 5. A fold line 14 is formed by sewing, and a portion of the hook-and-loop fastener 12 serving as a locking means is fixed at a position above the fold line 14. By adopting this structure, the back pad 4 is suspended from the back side of the knee, and when the knee is strongly bent, there is no excessive force applied between the thigh and calf. It will be caught in nature.

  When the above-described knee protector of the illustrated embodiment according to the present invention is mounted and the work is performed with the knees when performing tile work, interior floor bonding, interior cleaning work, agricultural work, etc., The grounding portion 7 comes into contact with the ground, and the knee is attached via the cup portion 1 and the front pad portion 2, so that the knee can be guarded firmly. When the waist is dropped during the work or at the end of the work, the weight is applied to the knee with the back pad 4 being sandwiched between the thigh and the calf as shown in FIG. At this time, since a part of the body weight is supported by the back pad 4, damage to the knee is reduced.

  DESCRIPTION OF SYMBOLS 1 ... Cup part, 2 ... Front pad, 2a ... Upper pad, 2b ... Lower pad, 3 ... Wearing belt, 3a ... Right belt, 3b ... Left belt, 4 ... Back pad, 5 ... Heart material, 6 ... Sheet material, 7 DESCRIPTION OF SYMBOLS ... Grounding part, 8 ... Elastic connecting member, 9 ... Collar, 10 ... Male piece, 11 ... Female piece, 12 ... Hook fastener, 13 ... Edge tape, 14 ... Bending line.

Claims (2)

  A cup part with strength and shape retention that protects the knee, and a front pad with cushioning properties are arranged on the inner surface of the cup part, and an attachment belt such as an elastic cord for attaching the cup part to the knee is provided. A knee protector characterized in that a back pad sandwiched between a thigh and a calf when the knee is strongly bent is supported by the wearing belt.   2. The knee according to claim 1, wherein the back pad is a flat plate having a soft foamed synthetic resin material as a core material and an outer surface covered with a sheet material, and both upper and left edges of the flat plate are supported by a mounting belt. Protector.

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