公开(公告)号：US20140295993A1

公开(公告)日：2014-10-02

申请号：US14223330

申请日：2014-03-24

Applicant: K.K. Endo Seisakusho

Inventor： Masaei Tsurumaki

IPC: A63B53/04

CPC classification number: A63B53/047 ,  A63B60/52 ,  B21K17/00

Abstract: An iron golf club head of a cavity type, specifically called a pocket type head, manufactured by forging to have a lowered center of gravity, capable of giving an excellent ball hitting sensation in hitting a golf ball. This iron golf club head is integrally provided by forging and includes a top 2 in an upper portion of the head, a face 3 at a front, a sole at a bottom, a back 5 at a rear. A main recess 7 is formed to extend toward the face 3 in the back 5, and a concavity 8 is formed by a bending process, to extend from the main recess 7 to the sole 4.

Abstract translation: 通过锻造具有降低的重心制造的能够在击打高尔夫球时发挥出色的球击球感觉的型腔式铁杆式高尔夫球杆头，特别称为口袋型头部。 这种铁质高尔夫球杆头由锻造整体提供，并包括头部上部的顶部2，前部的表面3，底部的底部，后部的后部5。 主凹部7形成为向背面5的面3延伸，通过弯曲加工形成凹部8，从主凹部7延伸到鞋底4。

公开(公告)号：US20040121852A1

公开(公告)日：2004-06-24

申请号：US10428037

申请日：2003-05-02

Applicant: K.K. ENDO SEISAKUSHO

Inventor： Masaei Tsurumaki

IPC: A63B053/04

CPC classification number: A63B53/0466 ,  A63B2053/0408 ,  A63B2053/0412 ,  A63B2053/0433 ,  A63B2053/0458 ,  A63B2053/0462 ,  A63B2209/00

Abstract: An object of the present invention is to provide a golf club in which carry does not deteriorate even when a golf ball is struck in a lower position on a face portion. In a golf club constituted by a face portion 4 having a hitting surface, a sole portion 3 which forms a lower portion, and a crown portion 5 which forms an upper portion, the sole portion 3 of a driver club head 1 is improved. A deformation portion B which is capable of elastic deformation is provided in concavoconvex form on the sole portion 3 in a position near the face portion 4. This deformation portion B is constituted by a protrusion 10 which is formed such that the sole portion 3 forms an obtuse angle null, and a concave groove 11 which is formed in a direction linking a toe portion and a heel portion by a protrusion protruding towards the crown portion 5. In order to increase hitting distance, restitution in a lower position on the face portion is increased.

Abstract translation: 本发明的一个目的是提供一种高尔夫球杆，即使在高尔夫球被撞击在面部的下部位置时，携带也不会劣化。 在由具有打击面的面部4构成的高尔夫球杆中，形成下部的鞋底部3和形成上部的冠部5改善了驾驶员球杆头1的底部3。 能够弹性变形的变形部B在底面部3的靠近面部4的位置以凹凸形状设置。该变形部B由突起10构成，突起10形成为使得鞋底部3形成 钝角α，以及凹部11，其通过朝向冠部5突出的突出部而形成在使趾部和脚跟部分连接的方向上。为了增加击球距离，在脸部的下部位置的恢复是 增加。

公开(公告)号：US20040082401A1

公开(公告)日：2004-04-29

申请号：US10454613

申请日：2003-06-05

Applicant: K.K. ENDO Seisakusho

Inventor： Hitoshi Takeda

IPC: A63B053/02 ,  A63B053/04

CPC classification number: A63B53/04 ,  A63B53/02 ,  A63B53/047 ,  A63B2053/0416 ,  A63B2053/0433

Abstract: A hollow iron clubhead having a low center of gravity and enabling free selection of a material for the clubface can be readily produced by press working. The hollow iron clubhead mainly comprises a clubface member, a front body member and a rear body member. A blank for forming the clubface member, a blank for forming the front body member and a blank for forming the rear body member are prepared by blanking. The clubface blank and the front body blank are integrally welded together and shaped by hot drawing to form the front body member. The rear body blank is shaped by hot drawing to form the rear body member. The front body member and the rear body member are integrally joined together by welding.

公开(公告)号：US20010007846A1

公开(公告)日：2001-07-12

申请号：US09727806

申请日：2000-12-01

Applicant: DYMCO LIMITED and K.K. ENDO SEISAKUSHO

Inventor： Masaru Sakuma ,  Youji Ito

IPC: F16C013/00 ,  B21B005/00 ,  G03G015/20

CPC classification number: B21D53/14 ,  B21D22/14 ,  Y10T428/12292

Abstract: A method of fabricating a circular-shaped metal structure, includes the steps of (a) rotating a pipe around an axis thereof, the pipe being composed of a plastic-workable metal, and (b) applying drawing to an outer wall of the pipe with the pipe being kept rotated, to reduce a wall thickness of the pipe and lengthen a wall of the pipe. A resultant circular-shaped metal structure fabricated by the method could have a thickness equal to or smaller than 0.09 mm.

Abstract translation: 一种制造圆形金属结构的方法，包括以下步骤：（a）围绕其轴线旋转管，所述管由可塑塑金属制成，以及（b）对所述管的外壁施加拉深 管道保持旋转，以减小管道的壁厚并延长管道壁。 通过该方法制造的圆形金属结构的结构可以具有等于或小于0.09mm的厚度。

公开(公告)号：US20160236258A1

公开(公告)日：2016-08-18

申请号：US15045186

申请日：2016-02-16

Applicant: K.K. ENDO SEISAKUSHO

Inventor： Tsuyoshi Kobayashi ,  Tsuyoshi Saito ,  Takashi Yaoita ,  Katsutoshi Maruyama

IPC: B21D22/16 ,  B24C1/08 ,  B24C3/32 ,  B24B39/04

CPC classification number: B21D22/16 ,  B21D33/00 ,  B24B39/04 ,  B24C1/08 ,  B24C3/325 ,  G03G15/2053 ,  G03G15/2057

Abstract: Provided is a fixing sleeve making it possible to reduce the surface roughness of the inner circumferential surface of the fixing sleeve by spinning, and a method for manufacturing the fixing sleeve. The spinning is performed by moving rollers, in the axial direction of a cup-shaped tubular body and, at the same time, a burnishing tool (spherical tool) is pressed against the outer circumferential surface of the cup-shaped tubular body after the spinning, and the burnishing tool is moved in the same direction as the rollers. The cup-shaped tubular body is plastically deformed in the axial direction of the cup-shaped tubular body, reduced in wall thickness, and elongated in the axial direction.

Abstract translation: 提供一种可以通过旋转来降低定影套筒的内周面的表面粗糙度的定影套筒，以及用于制造定影套筒的方法。 通过在杯形管状体的轴向上移动辊来进行纺丝，同时在纺丝后将抛光工具（球形工具）压靠在杯状管状体的外周面上 并且抛光工具沿与辊相同的方向移动。 杯形管状体在杯形管状体的轴向上塑性变形，壁厚减小，并且沿轴向延伸。

公开(公告)号：US20130217513A1

公开(公告)日：2013-08-22

申请号：US13773107

申请日：2013-02-21

Applicant: K.K. Endo Seisakusho

Inventor： Junichi AMANO ,  Toru TAMAKI

IPC: A63B53/04

CPC classification number: A63B53/04 ,  A63B53/047 ,  A63B60/00 ,  A63B2053/0445 ,  A63B2225/60 ,  B41M5/24

Abstract: There is provided a golf club head capable of reliably preventing a backspin rate from varying in rainfall. A plurality of fine grooves are formed on a face surface 2. When observing a cross-sectional surface perpendicular to the face surface 2 involving a vertical line passing through the center G of gravity of the golf club head 1 with the golf club head 1 set at preset loft and lie angles, an average width of the fine grooves 4 in the cross-sectional surface is 100 μm or less and an average pitch thereof in the cross-sectional surface is 100 μm or less. Hence, the discharge of water can be accelerated by a capillary phenomenon, making it possible to reliably prevent a backspin rate of a golf ball from varying in rainfall.

Abstract translation: 提供了一种可以可靠地防止降雨量变化的后倾率的高尔夫球杆头。 在表面2上形成多个细槽。当观察到垂直于表面2的横截面垂直于穿过高尔夫球杆头1的重心中心G的垂直线时，高尔夫球杆头1设置 在预定的放样角度和倾斜角度下，细槽4的横截面中的平均宽度为100μm以下，截面中的平均间距为100μm以下。 因此，可以通过毛细管现象来加速水的排出，从而可以可靠地防止高尔夫球的回转速度在降雨中变化。

公开(公告)号：US20210101054A1

公开(公告)日：2021-04-08

申请号：US17035734

申请日：2020-09-29

Applicant: K.K. ENDO SEISAKUSHO

Inventor： Makoto Okada

IPC: A63B53/04

Abstract: Provided is a golf club which allows for hitting a golf ball long distance and enhancing the durability of the golf club. The golf club has: a body portion welded and integrally attached with a face portion made of a rolled material. A back surface of the face portion has at least one groove provided at a location lower than a center of gravity on a striking face of the face portion. The at least one groove is extending from a proximity of a toe portion to a proximity of a heel portion. Moreover, three grooves can be provided evenly spaced apart along a direction intersecting with a direction heading from the toe portion to the heel portion.

公开(公告)号：US08827833B2

公开(公告)日：2014-09-09

申请号：US13773107

申请日：2013-02-21

Applicant: K.K. Endo Seisakusho

Inventor： Junichi Amano ,  Toru Tamaki

IPC: A63B53/04 ,  B41M5/24

CPC classification number: A63B53/04 ,  A63B53/047 ,  A63B60/00 ,  A63B2053/0445 ,  A63B2225/60 ,  B41M5/24

Abstract: There is provided a golf club head capable of reliably preventing a backspin rate from varying in rainfall. A plurality of fine grooves are formed on a face surface 2. When observing a cross-sectional surface perpendicular to the face surface 2 involving a vertical line passing through the center G of gravity of the golf club head 1 with the golf club head 1 set at preset loft and lie angles, an average width of the fine grooves 4 in the cross-sectional surface is 100 μm or less and an average pitch thereof in the cross-sectional surface is 100 μm or less. Hence, the discharge of water can be accelerated by a capillary phenomenon, making it possible to reliably prevent a backspin rate of a golf ball from varying in rainfall.

Abstract translation: 提供了一种可以可靠地防止降雨量变化的后倾率的高尔夫球杆头。 在表面2上形成多个细槽。当观察到垂直于表面2的横截面垂直于穿过高尔夫球杆头1的重心中心G的垂直线时，高尔夫球杆头1设置 在预定的倾斜角度和倾斜角度下，细沟4的横截面中的平均宽度为100μm以下，截面的平均间距为100μm以下。 因此，可以通过毛细管现象来加速水的排出，从而可以可靠地防止高尔夫球的回转速度在降雨中变化。

公开(公告)号：US10265754B2

公开(公告)日：2019-04-23

申请号：US15045186

申请日：2016-02-16

Applicant: K.K. ENDO SEISAKUSHO

Inventor： Tsuyoshi Kobayashi ,  Tsuyoshi Saito ,  Takashi Yaoita ,  Katsutoshi Maruyama

IPC: B21D22/16 ,  B24B39/04 ,  B24C1/08 ,  B24C3/32 ,  B21D33/00 ,  G03G15/20

Abstract: Provided is a fixing sleeve making it possible to reduce the surface roughness of the inner circumferential surface of the fixing sleeve by spinning, and a method for manufacturing the fixing sleeve. The spinning is performed by moving rollers, in the axial direction of a cup-shaped tubular body and, at the same time, a burnishing tool (spherical tool) is pressed against the outer circumferential surface of the cup-shaped tubular body after the spinning, and the burnishing tool is moved in the same direction as the rollers. The cup-shaped tubular body is plastically deformed in the axial direction of the cup-shaped tubular body, reduced in wall thickness, and elongated in the axial direction.

公开(公告)号：US20130102412A1

公开(公告)日：2013-04-25

申请号：US13650983

申请日：2012-10-12

Applicant: K.K. ENDO SEISAKUSHO

Inventor： Tomonari Funayama ,  Tomoyuki Sakai ,  Ken Ariyoshi

IPC: A63B53/04

CPC classification number: A63B53/0466 ,  A63B60/02 ,  A63B2053/0408 ,  A63B2053/0412 ,  A63B2053/0416 ,  A63B2053/0458 ,  A63B2053/0491

Abstract: A golf club having an increased moment of inertia and improved ball-hitting directionality is provided. A metal hollow golf club head comprises: a face portion; a crown portion; and a sole portion, and when the golf club has a lie angle of 60° with its club head volume being within 470 cm3, a moment of inertia about the axial line centered on the plumb line passing through the golf club head center of gravity is 5000 to 6000 g-cm2. In order to increase the moment of inertia, the thickness of the center portion of the crown portion is reduced by chemical etching, and a mass, including the portion of mass reduction, is positioned in the sole portion on the side of the toe portion; moreover, the separation distance from the center of gravity to the mass is increased.

Abstract translation: 提供了具有增加的惯性矩和改进的击球方向性的高尔夫球杆。 金属中空高尔夫球杆头包括：面部; 冠部; 并且当高尔夫球杆的球杆头体积在470cm 3内时，当高尔夫球杆具有60°的倾角时，围绕穿过高尔夫球杆头重心的铅垂线的轴线的惯性矩是 5000〜6000g-cm 2。 为了增加惯性矩，通过化学蚀刻来减小冠部的中心部分的厚度，并且包括质量减少部分的质量被定位在趾部侧的鞋底部分中; 此外，从重心到质量的分离距离增加。