1295709 (1) 九、發明說明 【發明所屬之技術領域】 本發明是有關由具有螺孔的塊體以及透過夾鉗配件安 裝於此塊體的螺孔的夾鉗螺栓所構成的夾鉗機構。 【先前技術】 習知使用螺栓的螺緊方式大多於世間的機構中用來作 • 爲可實現小扭力大負載的螺緊的手段。於螺栓螺緊時，在 螺栓的頭部與塊體（被螺緊物）的接觸面中，有時候因施 加扭力於螺栓時的力量所造成的撓曲，或螺栓的加工誤差 、接觸面的平行度誤差，以致於接觸面周圍不均一。於此 情況下，當螺栓螺緊時，會導致被螺緊物位移。 【發明內容】 [發明欲解決之問題] # 雖然如上述般地，於螺栓螺緊時，被螺緊物可能有所 位移，不過，此被螺緊物的位移方向因接觸面的加工誤差 I 、對板手施力的方式或力量的方向而各異，並因被螺緊物 的位移方向而於夾鉗機構發生不當情形。 本發明是考慮此點而開發完成的技術，目的在於提供 於螺栓螺緊時，朝期望方向移動塊體，可堅固固定塊體的 夾鉗機構。 (用以解決問題之手段） -4- (2) 1295709 本發明是一種夾鉗機構，其特徵爲具備：塊體，是具 有螺孔；以及夾甜螺栓，是具有透過夾紺配件安裝於該塊 體的螺孔的頭部；夾鉗配件具有夾鉗螺栓貫通的調整孔； 夾鉗配件於夾鉗螺栓的頭部側的面，是由與夾鉗螺栓的頭 部緊密接觸的調整孔一側的面，以及與夾鉗螺检的頭部間 形成間隙的調整孔另一側的面所構成。 本發明是特徵爲具有螺孔的塊體由能於滑座上移動的 • 滑塊所構成的夾鉗機構。 本發明是特徵爲夾鉗配件的調整孔形成細長狀，沿滑 塊的移動方向延伸的夾鉗機構。 本發明是特徵爲夾鉗配件自滑塊延伸至滑座的夾鉗機 構。 本發明是特徵爲於夾鉗配件在滑塊及滑座側的面，形 成位於滑塊與滑座間的梯級部的夾鉗機構。 本發明是特徵爲於滑塊及滑座之中的一方設置鳩尾槽 • ，於另一方形成與此鳩尾槽卡合的鳩尾槽導件的夾鉗機構 〇 k 本發明是特徵爲夾鉗配件的調整孔爲圓孔的夾鉗機構 〇 本發明是特徵爲調整孔的中心是與調整孔一側的面與 調整孔另一側的面間的交界線一致的夾鉗機構。 [發明效果] 根據本發明，在螺緊夾鉗螺栓情況下，能以夾鉗配件 -5- (3) 1295709 之一側的面作爲與夾鉗螺栓頭部的抵接面。因此，能以此 夾鉗配件之一側的面作爲支點，施加旋轉力於夾鉗螺栓， 並由於夾鉗螺栓貫通夾鉗配件的調整孔內，故可自夾鉗螺 栓對滑塊施加保持一定方向的移動力。 【實施方式】 (用以實施發明之最佳形態） • 以下參照圖式，對本發明夾鉗機構之實施形態加以說 明。 第1圖至第3圖是顯示本發明夾鉗機構之一實施形態的 圖式。 於此，第1 ( a )圖是夾鉗機構的正視圖，第i ( b )圖 是第1 ( a )圖所示夾鉗機構的側剖視圖，第2 ( a )圖是第 1(a)圖的放大圖，第2(b)圖是第2(a)圖所示夾鉗機 構的側剖視圖，第3圖是顯示夾鉗機構的作用的圖式。 # 如第1圖至第3圖所示，夾鉗機構具備：滑座2，是具 有鳩尾槽導件8 ;滑塊（夾嵌對象物）χ，是設成能於滑座 2上移動，具有與鳩尾槽導件8卡合的鳩尾槽7;以及夾鉗 螺栓1 5，是透過夾鉗配件3安裝於滑塊1的螺孔1 a。 其中，夾鉗螺栓15具有頭部5，又，夾鉗配件3具有平 板形狀，並具有夾鉗螺栓15貫通的細長形調整孔6。此細 長形調整孔6沿滑塊1的移動方向（第丨（a )圖的左右方向 )延伸。 又，與夾鉗配件3正交而抵接滑塊i的止動件4固裝於 6 - (4) 1295709 滑座2的一端。 止動件4可對向滑塊1設置，不必固裝於滑座2。 如上述設在屬於夾嵌對象物的滑塊1的鳩尾槽7嵌合於 滑座2的鳩尾槽導件8，滑塊1能於滑座2上滑動位移。又’ 如第1 ( b )圖所示，於滑塊1與夾鉗配件3間，在接合滑座 2的端面與夾鉗配件3時，於夾鉗螺栓15的頭部5的位置形 成例如0.01〜O.lmrn左右的間隙。且，夾鉗配件3中滑塊1 φ 及滑座2側的面具有押壓滑座2側面的押壓面3d，於夾鉗螺 栓15附近押壓滑塊1側面的押壓面3c，以及位於押壓面3c 與押壓面3d間，與滑塊1及滑座2分離的梯級部3g。 如此，夾鉗配件3自滑塊1延伸至滑座2，於夾鉗配件3 的滑塊1及滑座2側的面設置梯級部3g。 如上述，於夾鉗配件3，沿與鳩尾槽導件8平行的方向 ，亦即沿滑塊1的移動方向設置長孔的調整孔6，貫通調整 孔6，夾鉗螺栓15螺合於滑塊1的螺孔1 ( a )內。若滑塊1 ©於滑座2上滑動移動，夾鉗螺栓15即於調整孔6內往復。 又，如第2(a) 、（b)圖所示，夾鉗配件3中夾鉗螺 栓15的頭部5側的面具有位於調整孔6上側的梯級面3a及位 於調整孔6下側的基準面3b。 又，於第2(a) 、（b)圖中，夾鉗配件3的調整孔6 以上的上側梯級面3a相對於調整孔6以下的下側梯級面3b ，以例如0·01〜0.3mm左右的微小梯級（間隙）凹陷。 且於第2(a) 、（b)圖中，夾鉗配件的基準面3b構 成調整孔6—側的面，梯級面3a構成調整孔6另一側的面。 (5) ^ , 1295709 且於梯級面3a與基準面3b間形成交界線3Ρ，調整孔6 的中心線（及中心）與此交界線3Ρ—致。 其次，對由此種構造構成的實施形態加以說明。 如第1 ( a ) 、（ b )圖所示，夾鉗螺栓15自滑塊1的螺 孔1 ( a )旋鬆，滑塊1可於滑座2上滑動。滑塊1藉由手動 等押壓，於滑座2上，沿第1 ( a )圖中向右方向滑動移動 ，抵接止動件4。若在滑塊1抵接止動件4狀態下，螺入夾 φ 鉗螺栓15，設於夾鉗配件3的夾鉗螺栓15側的押壓面3c與 滑塊1間的微小間隙即藉由夾鉗配件3的梯級部3g的彈性變 形塡滿，且將夾鉗配件3的押壓面3d押壓於滑座2的側面。 如此，滑塊1藉夾鉗配件3及夾鉗螺栓15固定於滑座2 上。 於其間，貫通調整孔6而螺合於滑塊1的螺孔la的夾鉗 螺栓15的頭部5形成有於螺入前只有與夾鉗配件3的基準面 3b緊密接觸的抵接面5a，與夾鉗配件3的梯級面3a僅開離 • (間隙）梯級t之距離。於此狀態下，若順時鐘方旋轉進 一步螺緊夾鉗螺栓15時，夾鉗螺栓15的頭部5中抵接基準 面3b的抵接面5a的摩擦力即確實較與梯級面3a間的摩擦力 大。因此，以抵接面5a爲支點的轉動力作用於夾鉗螺栓15 〇 若旋轉力如此作用於夾鉗螺栓15，與夾鉗螺栓15的旋 轉方向同方向的扭力即透過夾鉗螺栓15施加於滑塊1。由 於在此情況下，滑塊1的鳩尾槽7嵌合於滑座2的鳩尾槽導 件8，故滑塊1不會起伏於滑座2上。又由於夾鉗螺栓15爲 (6) 1295709 夾鉗配件3的調整孔6所限制，故於滑塊1發生沿第2 ( a ) 圖所示左右方向的移動力。 自夾鉗螺栓15施加於夾鉗螺栓15的滑塊1的移動力成 爲朝止動件4的方向滑動移動的力量，結果，滑塊1押壓於 止動件4。 若進一步螺入夾鉗螺栓15，即如第3圖所示，夾鉗螺 栓15的頭部5彈性變形，頭部5抵接梯級面3a，完成夾嵌。 • 且由於梯級面3a的梯級差t僅爲0.01〜0.3mm左右（如後述 ，梯級差t可按夾鉗螺栓15的大小或頭部5的大小適當設定 )，故不會隨著夾鉗螺栓15的頭部5的彈性變形，損傷頭 部5。 又由於藉由設置梯級面3a的梯級差t，與基準面3b抵 接的抵接面5a成爲支點，夾鉗螺栓15旋轉，故而，結果， 藉由夾鉗螺栓15 (右螺紋情況）的螺緊旋轉（右轉），滑 塊1的進行方向如第2 ( a )圖所示，限定於朝向止動件4側 Φ 的方向（向右方向）。 其次，藉由第4 ( a ) —（ d )圖加以說明本發明之比 較例。如第4 ( a ) —（ b )圖所示，於夾鉗配件3的夾鉗螺 栓15的頭部5側的面3f—樣平坦情況下，是無法決定由夾 鉗螺栓15對滑塊1所施加的移動力。 亦即’如第4 ( a ) —（ d )圖所示，於順時鐘方向螺緊夾 鉗螺栓15時，與夾鉗配件3的調整孔6兩側的平坦面3f抵接 的夾鉗螺栓15的頭部5，是在如第4 ( c)圖所示下方的接 觸面5a藉由與夾鉗配件3的平坦面3f間的摩擦成爲支點情 (7) 1295709 況下，隨著夾鉗螺栓15的螺緊旋轉（右轉），使滑塊1前 進，對止動件4產生壓迫作用。另一方面，於如第4 ( d ) 圖所示，頭部5當中於上方的接觸面5b藉由與夾鉗配件3的 平坦面3f間的摩擦成爲支點情況下，滑塊1會隨著夾鉗螺 栓15的螺緊旋轉而與止動件4開離。於此情況下，在上方 的接觸面5b的摩擦力大於下方的接觸面5 a的摩擦力時，壓 接於止動件4的滑塊1會隨著夾鉗螺栓15的螺入而與止動件 # 4開離，而無法保持定位精度。 且於頭部5的接觸面5a、5b發生的摩擦力雖然會受此 接觸面5a或5b的表面糙度所影響，不過，更進一步亦受到 對夾鉗螺栓15的扭力加載狀況所影響。亦即，施加扭力於 夾鉗螺栓15的方法是在使用一般的單柄板手嵌合於螺栓後 ，藉由自一方壓迫，施加旋轉力，此時的壓迫力成爲對夾 鉗螺栓15的頭部5的壓迫力，使夾鉗螺栓15撓曲。若以施 力部就位於右側的方式水平嵌合棒型板手於例如第4 ( c ) • 圖的夾鉗螺栓15，以力量F自棒型板手的水平位置向右旋 轉棒型板手，力量F即向下施加於夾鉗螺栓1 5的頭部5。藉 此，夾鉗螺栓1 5朝向下方向被撓曲，於此影響下，使頭部 5的抵接面5a更加被押壓。或者，相反地，若以施力部就 位於夾鉗螺栓15的頭部5左側的方式嵌合棒型板手，向右 (力量的方向朝上方）旋轉夾鉗螺栓15時，則施加於滑塊 1的移動力即相反地，向左增強。 相對於此，根據本發明，由於設置了即使施加前述力 量F也不會有所影響之大小程度的梯級t(間隙），故於螺緊 -10- (8) 1295709 夾鉗螺栓15情況下，可保持施加於滑塊1的移動力於一定 方向，也就是固定爲朝向止動件4的方向。因此藉由螺緊 夾鉗螺栓15，可固定滑塊1於滑座2，並可確實壓迫止動件 4 〇 且，雖然已說明調整孔6呈細長狀，不過，在滑塊1的 移動量很少亦佳的情況下，可爲留有若干餘裕的圓孔。甚 而，雖然滑座2的端面與夾鉗配件3接合時的梯級t的値設 • 定爲粗略値，不過，可因夾鉗螺栓15的大小、移動量，又 可因夾鉗配件的材料、剛性或大小等而適當變更。 【圖式簡單說明】 第1圖是顯示本發明夾鉗機構之一實施形態的圖式。 第2圖是第1圖所示夾鉗機構的放大圖。 第3圖是顯示夾鉗機構的作用的圖式。 第4圖是顯示習知夾鉗機構的圖式。 【主要元件符號說明】 1 滑塊 1 a 螺孔 2 滑座 3 夾鉗配件 3a 梯級面 3 b 基準面 3c、3d 押壓面 -11 - (9) 1295709 (9)1295709 (1) Description of the Invention [Technical Field] The present invention relates to a clamp mechanism comprising a block having a screw hole and a clamp bolt that is attached to a screw hole of the block through a clamp fitting. [Prior Art] It is conventional to use a bolt tightening method which is mostly used in a mechanism in the world as a means for achieving a small torque and a large load. When the bolt is tightened, in the contact surface between the head of the bolt and the block (the screw is tight), sometimes the deflection caused by the force applied to the bolt, or the machining error of the bolt, the contact surface Parallelism error, so that the contact surface is not uniform. In this case, when the bolt is screwed, it will cause the screw to be displaced. [Summary of the Invention] [Problem to be Solved by the Invention] #Although as described above, when the bolt is tightened, the screw may be displaced, but the displacement direction of the screw is due to the machining error of the contact surface. The method of applying force to the wrench or the direction of the force varies, and the clamping mechanism is improper due to the displacement direction of the screw. SUMMARY OF THE INVENTION The present invention has been developed in consideration of this point, and an object thereof is to provide a clamp mechanism capable of firmly fixing a block when the bolt is screwed and moving the block in a desired direction. (Means for Solving the Problem) -4- (2) 1295709 The present invention is a clamp mechanism characterized by comprising: a block having a screw hole; and a clip-on sweet bolt having a through-clamp fitting mounted thereon The head of the screw hole of the block; the clamp fitting has an adjustment hole through which the clamp bolt penetrates; the surface of the clamp fitting on the head side of the clamp bolt is an adjustment hole which is in close contact with the head of the clamp bolt The side surface and the surface on the other side of the adjustment hole that forms a gap with the head of the clamp screw. The present invention is characterized in that the block having the screw hole is constituted by a clamp mechanism capable of moving on the slide. The present invention is characterized in that the adjustment hole of the clamp fitting is formed into an elongated shape and a clamp mechanism extending in the moving direction of the slider. The present invention is characterized by a clamping mechanism in which the jaw assembly extends from the slider to the slider. The present invention is characterized in that a gripping mechanism is formed on a face of the clamp fitting on the slider and the slide side to form a step portion between the slider and the slider. The present invention is characterized in that a clamping mechanism is provided on one of the slider and the slider, and a clamping mechanism is formed on the other side to form a dovetail guide that engages with the dovetail. The present invention is characterized by a clamp fitting. The clamp mechanism in which the adjustment hole is a circular hole is characterized in that the center of the adjustment hole is a clamp mechanism that coincides with a boundary line between the surface on the side of the adjustment hole and the surface on the other side of the adjustment hole. [Effect of the Invention] According to the present invention, in the case of screwing the clamp bolt, the surface on one side of the clamp fitting -5-(3) 1295709 can be used as the abutting surface with the clamp bolt head. Therefore, the surface of one side of the clamp fitting can be used as a fulcrum, and a rotational force is applied to the clamp bolt, and since the clamp bolt penetrates the adjustment hole of the clamp fitting, the slider can be fixed to the slider from the clamp bolt. The moving force of the direction. [Embodiment] (Best mode for carrying out the invention) An embodiment of the clamp mechanism of the present invention will be described below with reference to the drawings. Figs. 1 to 3 are views showing an embodiment of the clamp mechanism of the present invention. Here, the first (a) is a front view of the clamp mechanism, the i-th (b) is a side cross-sectional view of the clamp mechanism shown in the first (a), and the second (a) is the first (a). Fig. 2(b) is a side cross-sectional view of the clamp mechanism shown in Fig. 2(a), and Fig. 3 is a view showing the action of the clamp mechanism. # As shown in Figs. 1 to 3, the caliper mechanism includes a slider 2 having a dovetail guide 8 and a slider (interlacing object) 设 which is configured to be movable on the carriage 2, A dovetail groove 7 that engages with the dovetail guide 8 and a clamp bolt 15 that is attached to the screw hole 1a of the slider 1 through the clamp fitting 3. Among them, the clamp bolt 15 has a head portion 5, and the clamp fitting 3 has a flat plate shape and has an elongated adjustment hole 6 through which the clamp bolt 15 passes. This elongated adjustment hole 6 extends in the moving direction of the slider 1 (the left-right direction of the Fig. (a) diagram). Further, the stopper 4 which is orthogonal to the clamp fitting 3 and abuts against the slider i is fixed to one end of the 6 - (4) 1295709 slider 2. The stopper 4 can be disposed opposite the slider 1 and does not have to be fixed to the slider 2. As described above, the dovetail groove 7 provided in the slider 1 belonging to the object to be clamped is fitted to the dovetail guide 8 of the carriage 2, and the slider 1 can be slidably displaced on the carriage 2. Further, as shown in Fig. 1(b), between the slider 1 and the clamp fitting 3, when the end surface of the slider 2 and the clamp fitting 3 are joined, the position of the head portion 5 of the clamp bolt 15 is formed, for example. A gap of about 0.01~O.lmrn. Further, the slider 1 φ and the surface on the side of the slider 2 of the clamp fitting 3 have the pressing surface 3d which presses the side of the slider 2, and presses the pressing surface 3c on the side of the slider 1 near the clamp bolt 15, and A step portion 3g which is located between the pressing surface 3c and the pressing surface 3d and which is separated from the slider 1 and the slider 2. In this manner, the clamp fitting 3 extends from the slider 1 to the slider 2, and the step portion 3g is provided on the slider 1 and the slider 2 side of the clamp fitting 3. As described above, in the clamp fitting 3, the adjustment hole 6 of the long hole is provided in a direction parallel to the dovetail guide 8, that is, along the moving direction of the slider 1, and the adjustment hole 6 is penetrated, and the clamp bolt 15 is screwed to the slide. Inside the screw hole 1 ( a ) of block 1. When the slider 1 is slidably moved on the carriage 2, the clamp bolt 15 reciprocates in the adjustment hole 6. Further, as shown in the second (a) and (b), the surface of the gripper bolt 15 on the side of the head portion 5 has a step surface 3a on the upper side of the adjustment hole 6 and a lower surface on the lower side of the adjustment hole 6. Datum plane 3b. Further, in the second (a) and (b), the upper step surface 3a of the adjustment hole 6 of the clamp fitting 3 is equal to or smaller than the lower step surface 3b of the adjustment hole 6, for example, 0·01 to 0.3 mm. The small steps (gap) on the left and right are recessed. Further, in the second (a) and (b) drawings, the reference surface 3b of the clamp fitting constitutes the surface on the side of the adjustment hole 6, and the step surface 3a constitutes the surface on the other side of the adjustment hole 6. (5) ^ , 1295709 and a boundary line 3 is formed between the step surface 3a and the reference surface 3b, and the center line (and the center) of the adjustment hole 6 is aligned with the boundary line 3Ρ. Next, an embodiment configured by such a structure will be described. As shown in the first (a) and (b) diagrams, the clamp bolt 15 is loosened from the screw hole 1 (a) of the slider 1, and the slider 1 is slidable on the slider 2. The slider 1 is slid in the right direction on the slider 2 by the manual pressing, and abuts against the stopper 4 in the right direction in the first (a) diagram. When the slider 1 abuts the stopper 4, the clamp φ clamp bolt 15 is screwed in, and the small gap between the pressing surface 3c provided on the side of the clamp bolt 15 of the clamp fitting 3 and the slider 1 is The elastic deformation of the step portion 3g of the clamp fitting 3 is full, and the pressing surface 3d of the clamp fitting 3 is pressed against the side surface of the slider 2. In this way, the slider 1 is fixed to the slider 2 by the clamp fitting 3 and the clamp bolt 15. In the meantime, the head portion 5 of the clamp bolt 15 which is screwed into the screw hole la of the slider 1 through the adjustment hole 6 is formed with an abutting surface 5a which is in close contact with the reference surface 3b of the clamp fitting 3 before screwing. , and the step surface 3a of the clamp fitting 3 is only separated from the distance of (gap) step t. In this state, when the clamp bolt 15 is further screwed clockwise, the frictional force of the abutting surface 5a of the head portion 5 of the clamp bolt 15 abutting against the reference surface 3b is surely compared with the step surface 3a. High friction. Therefore, the rotational force with the abutting surface 5a as a fulcrum acts on the clamp bolt 15 . If the rotational force acts on the clamp bolt 15 , the torque in the same direction as the rotational direction of the clamp bolt 15 is applied to the clamp bolt 15 . Slider 1. Since the dovetail groove 7 of the slider 1 is fitted to the dovetail guide 8 of the carriage 2 in this case, the slider 1 does not undulate on the carriage 2. Further, since the clamp bolt 15 is restricted by the adjustment hole 6 of the clamp fitting 3 of (6) 1295709, the slider 1 has a moving force in the left-right direction as shown in the second (a) diagram. The moving force of the slider 1 applied from the clamp bolt 15 to the clamp bolt 15 becomes a force of sliding movement in the direction of the stopper 4, and as a result, the slider 1 is pressed against the stopper 4. When the clamp bolt 15 is further screwed, as shown in Fig. 3, the head portion 5 of the clamp bolt 15 is elastically deformed, and the head portion 5 abuts against the step surface 3a to complete the sandwiching. • Since the step difference t of the step surface 3a is only about 0.01 to 0.3 mm (as will be described later, the step difference t can be appropriately set according to the size of the clamp bolt 15 or the size of the head 5), so that the clamp bolt does not follow The head 5 of the 15 is elastically deformed to damage the head 5. Further, by providing the step difference t of the step surface 3a, the abutting surface 5a that abuts against the reference surface 3b serves as a fulcrum, and the clamp bolt 15 rotates, so that the snail by the clamp bolt 15 (in the case of the right thread) is obtained. Tight rotation (right turn), the progress direction of the slider 1 is limited to the direction toward the stopper 4 side Φ (to the right direction) as shown in the second (a) diagram. Next, a comparative example of the present invention will be described by the fourth (a) - (d) diagram. As shown in Fig. 4 (a) - (b), in the case where the face 3f on the head 5 side of the clamp bolt 15 of the clamp fitting 3 is flat, it is impossible to determine the slider 1 by the clamp bolt 15 The applied moving force. That is, as shown in the fourth (a) - (d) diagram, when the clamp bolt 15 is screwed in the clockwise direction, the clamp bolt abuts against the flat surface 3f on both sides of the adjustment hole 6 of the clamp fitting 3 The head 5 of 15 is in the condition that the contact surface 5a below the figure 4 (c) is fulcrumed by the friction with the flat surface 3f of the clamp fitting 3 (7) 1295709, with the clamp The screw 15 is rotated tightly (right turn) to advance the slider 1 to exert a pressing force on the stopper 4. On the other hand, as shown in the fourth figure (d), in the case where the upper contact surface 5b of the head portion 5 becomes a fulcrum by friction with the flat surface 3f of the clamp fitting 3, the slider 1 will follow The screw of the clamp bolt 15 is rotated tightly to be separated from the stopper 4. In this case, when the frictional force of the upper contact surface 5b is greater than the frictional force of the lower contact surface 5a, the slider 1 crimped to the stopper 4 will follow the screwing of the clamp bolt 15 The moving member #4 is opened and cannot maintain the positioning accuracy. The frictional force generated at the contact faces 5a, 5b of the head 5 is affected by the surface roughness of the contact faces 5a, 5b, but is further affected by the torque loading condition of the clamp bolts 15. That is, the method of applying the torsion force to the clamp bolt 15 is to apply a rotational force by pressing from a single one after the general single handle is fitted to the bolt, and the pressing force at this time becomes the head of the clamp bolt 15. The pressing force of the portion 5 causes the clamp bolt 15 to flex. If the force applying portion is horizontally fitted to the right side of the rod type wrench, for example, the clamp bolt 15 of the 4th (c) • figure, the force F is rotated to the right from the horizontal position of the stick wrench. The force F is applied downward to the head 5 of the clamp bolt 15. As a result, the clamp bolt 15 is deflected in the downward direction, and the abutment surface 5a of the head 5 is further pressed against the influence. Or, conversely, when the urging portion is fitted to the left side of the head portion 5 of the clamp bolt 15, the rod-shaped wrench is fitted, and when the clamp bolt 15 is rotated to the right (the direction of the force is upward), it is applied to the slide. The moving force of the block 1 is oppositely increased to the left. On the other hand, according to the present invention, since the step t (gap) of the magnitude which does not affect even if the force F is applied is provided, in the case of the tightening of the 10- (8) 1295709 clamp bolt 15 The moving force applied to the slider 1 can be kept in a certain direction, that is, fixed in the direction toward the stopper 4. Therefore, the slider 1 can be fixed to the slider 2 by screwing the clamp bolt 15, and the stopper 4 can be surely pressed. Although the adjustment hole 6 is elongated, the amount of movement of the slider 1 is described. In the case of few or better cases, there may be a round hole with a margin. In addition, although the step of the step t when the end surface of the carriage 2 is engaged with the clamp fitting 3 is set to be rough, the size of the clamp bolt 15 and the amount of movement may be due to the material of the clamp fitting, It is appropriately changed depending on rigidity, size, and the like. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing an embodiment of a clamp mechanism of the present invention. Fig. 2 is an enlarged view of the clamp mechanism shown in Fig. 1. Figure 3 is a diagram showing the action of the clamp mechanism. Figure 4 is a diagram showing a conventional clamp mechanism. [Main component symbol description] 1 Slider 1 a Screw hole 2 Slider 3 Clamp fittings 3a Step surface 3 b Reference surface 3c, 3d Pressing surface -11 - (9) 1295709 (9)
3f 平坦面 3g 梯級部 4 止動件 5a、5b 抵接面（接觸 6 調整孔 7 鳩尾槽 8 鳩尾槽導件 15 夾鉗螺栓 t 梯級（間隙）3f flat surface 3g step part 4 stopper 5a, 5b abutment surface (contact 6 adjustment hole 7 dovetail groove 8 dovetail guide 15 clamp bolt t step (gap)